blob: 852bd5bebd44fb6e954d6741da0a870b08cadaa4 [file] [log] [blame]
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001mbed TLS ChangeLog (Sorted per branch, date)
Paul Bakker99ed6782011-01-05 14:48:42 +00002
Jaeden Amero62236d72020-01-24 18:20:22 +00003= mbed TLS X.X.X branch released XXXX-XX-XX
4
Andres Amaya Garcia2047cd92018-12-05 20:37:38 +00005New deprecations
Gilles Peskine907e95a2020-01-23 15:51:40 +01006 * Deprecate for MBEDTLS_PKCS11_C, the wrapper around the pkcs11-helper
7 library which allows TLS authentication to use keys stored in a
8 PKCS#11 token such as a smartcard.
Andres Amaya Garcia2047cd92018-12-05 20:37:38 +00009
Jaeden Amero62236d72020-01-24 18:20:22 +000010Bugfix
11 * Allow loading symlinked certificates. Fixes #3005. Reported and fixed
12 by Jonathan Bennett <JBennett@incomsystems.biz> via #3008.
13
Jaeden Amerod56a2af2020-01-15 18:07:20 +000014= mbed TLS 2.20.0 branch released 2020-01-15
irwir6c0da642019-09-26 21:07:41 +030015
Gilles Peskine6a4c3402020-01-22 18:28:24 +010016Default behavior changes
Gilles Peskine8c7d2c22020-01-22 19:02:09 +010017 * The initial seeding of a CTR_DRBG instance makes a second call to the
Gilles Peskine6a4c3402020-01-22 18:28:24 +010018 entropy function to obtain entropy for a nonce if the entropy size is less
19 than 3/2 times the key size. In case you want to disable the extra call to
Gilles Peskine8c7d2c22020-01-22 19:02:09 +010020 grab entropy, you can call mbedtls_ctr_drbg_set_nonce_len() to force the
Gilles Peskine6a4c3402020-01-22 18:28:24 +010021 nonce length to 0.
22
23Security
Gilles Peskine8c7d2c22020-01-22 19:02:09 +010024 * Enforce that mbedtls_entropy_func() gathers a total of
25 MBEDTLS_ENTROPY_BLOCK_SIZE bytes or more from strong sources. In the
Gilles Peskine6a4c3402020-01-22 18:28:24 +010026 default configuration, on a platform with a single entropy source, the
27 entropy module formerly only grabbed 32 bytes, which is good enough for
28 security if the source is genuinely strong, but less than the expected 64
29 bytes (size of the entropy accumulator).
Gilles Peskinee3b285d2020-01-27 14:01:42 +010030 * Zeroize local variables in mbedtls_internal_aes_encrypt() and
31 mbedtls_internal_aes_decrypt() before exiting the function. The value of
32 these variables can be used to recover the last round key. To follow best
33 practice and to limit the impact of buffer overread vulnerabilities (like
34 Heartbleed) we need to zeroize them before exiting the function.
35 Issue reported by Tuba Yavuz, Farhaan Fowze, Ken (Yihang) Bai,
36 Grant Hernandez, and Kevin Butler (University of Florida) and
37 Dave Tian (Purdue University).
38 * Fix side channel vulnerability in ECDSA. Our bignum implementation is not
39 constant time/constant trace, so side channel attacks can retrieve the
40 blinded value, factor it (as it is smaller than RSA keys and not guaranteed
41 to have only large prime factors), and then, by brute force, recover the
42 key. Reported by Alejandro Cabrera Aldaya and Billy Brumley.
43 * Fix side channel vulnerability in ECDSA key generation. Obtaining precise
44 timings on the comparison in the key generation enabled the attacker to
45 learn leading bits of the ephemeral key used during ECDSA signatures and to
46 recover the private key. Reported by Jeremy Dubeuf.
47 * Catch failure of AES functions in mbedtls_ctr_drbg_random(). Uncaught
48 failures could happen with alternative implementations of AES. Bug
49 reported and fix proposed by Johan Uppman Bruce and Christoffer Lauri,
50 Sectra.
Gilles Peskine6a4c3402020-01-22 18:28:24 +010051
52Features
53 * Key derivation inputs in the PSA API can now either come from a key object
54 or from a buffer regardless of the step type.
55 * The CTR_DRBG module can grab a nonce from the entropy source during the
56 initial seeding. The default nonce length is chosen based on the key size
57 to achieve the security strength defined by NIST SP 800-90A. You can
Gilles Peskine8c7d2c22020-01-22 19:02:09 +010058 change it with mbedtls_ctr_drbg_set_nonce_len().
Gilles Peskine6a4c3402020-01-22 18:28:24 +010059 * Add ENUMERATED tag support to the ASN.1 module. Contributed by
Gilles Peskine50f57702020-01-22 19:02:59 +010060 msopiha-linaro in ARMmbed/mbed-crypto#307.
Gilles Peskine6a4c3402020-01-22 18:28:24 +010061
62API changes
63 * In the PSA API, forbid zero-length keys. To pass a zero-length input to a
64 key derivation function, use a buffer instead (this is now always
65 possible).
Gilles Peskine8c7d2c22020-01-22 19:02:09 +010066 * Rename psa_asymmetric_sign() to psa_sign_hash() and
67 psa_asymmetric_verify() to psa_verify_hash().
Gilles Peskine6a4c3402020-01-22 18:28:24 +010068
irwir6c0da642019-09-26 21:07:41 +030069Bugfix
70 * Fix an incorrect size in a debugging message. Reported and fix
71 submitted by irwir. Fixes #2717.
72 * Fix an unused variable warning when compiling without DTLS.
73 Reported and fix submitted by irwir. Fixes #2800.
74 * Remove a useless assignment. Reported and fix submitted by irwir.
75 Fixes #2801.
Gilles Peskine6a4c3402020-01-22 18:28:24 +010076 * Fix a buffer overflow in the PSA HMAC code when using a long key with an
Gilles Peskine50f57702020-01-22 19:02:59 +010077 unsupported algorithm. Fixes ARMmbed/mbed-crypto#254.
Gilles Peskine8c7d2c22020-01-22 19:02:09 +010078 * Fix mbedtls_asn1_get_int to support any number of leading zeros. Credit
Gilles Peskine6a4c3402020-01-22 18:28:24 +010079 to OSS-Fuzz for finding a bug in an intermediate version of the fix.
Gilles Peskine8c7d2c22020-01-22 19:02:09 +010080 * Fix mbedtls_asn1_get_bitstring_null to correctly parse bitstrings of at
Gilles Peskine6a4c3402020-01-22 18:28:24 +010081 most 2 bytes.
Gilles Peskine8c7d2c22020-01-22 19:02:09 +010082 * mbedtls_ctr_drbg_set_entropy_len() and
83 mbedtls_hmac_drbg_set_entropy_len() now work if you call them before
84 mbedtls_ctr_drbg_seed() or mbedtls_hmac_drbg_seed().
Gilles Peskine6a4c3402020-01-22 18:28:24 +010085 * Fix some false-positive uninitialized variable warnings. Fix contributed
Gilles Peskine50f57702020-01-22 19:02:59 +010086 by apple-ihack-geek in #2663.
Gilles Peskine6a4c3402020-01-22 18:28:24 +010087
88Changes
Gilles Peskine8c7d2c22020-01-22 19:02:09 +010089 * Remove the technical possibility to define custom mbedtls_md_info
Gilles Peskine6a4c3402020-01-22 18:28:24 +010090 structures, which was exposed only in an internal header.
Gilles Peskine8c7d2c22020-01-22 19:02:09 +010091 * psa_close_key(0) and psa_destroy_key(0) now succeed (doing nothing, as
Gilles Peskine6a4c3402020-01-22 18:28:24 +010092 before).
93 * Variables containing error codes are now initialized to an error code
94 rather than success, so that coding mistakes or memory corruption tends to
95 cause functions to return this error code rather than a success. There are
96 no known instances where this changes the behavior of the library: this is
Gilles Peskine50f57702020-01-22 19:02:59 +010097 merely a robustness improvement. ARMmbed/mbed-crypto#323
Gilles Peskine8c7d2c22020-01-22 19:02:09 +010098 * Remove a useless call to mbedtls_ecp_group_free(). Contributed by
Gilles Peskine50f57702020-01-22 19:02:59 +010099 Alexander Krizhanovsky in ARMmbed/mbed-crypto#210.
Gilles Peskine6a4c3402020-01-22 18:28:24 +0100100 * Speed up PBKDF2 by caching the digest calculation. Contributed by Jack
Gilles Peskine50f57702020-01-22 19:02:59 +0100101 Lloyd and Fortanix Inc in ARMmbed/mbed-crypto#277.
Gilles Peskine8c7d2c22020-01-22 19:02:09 +0100102 * Small performance improvement of mbedtls_mpi_div_mpi(). Contributed by
Gilles Peskine50f57702020-01-22 19:02:59 +0100103 Alexander Krizhanovsky in ARMmbed/mbed-crypto#308.
irwir6c0da642019-09-26 21:07:41 +0300104
Jaeden Amero914a5072019-09-18 13:35:57 +0100105= mbed TLS 2.19.1 branch released 2019-09-16
106
107Features
108 * Add nss_keylog to ssl_client2 and ssl_server2, enabling easier analysis of
109 TLS sessions with tools like Wireshark.
110
111API Changes
112 * Make client_random and server_random const in
113 mbedtls_ssl_export_keys_ext_t, so that the key exporter is discouraged
114 from modifying the client/server hello.
115
Jaeden Amero4197f0e2019-09-06 14:40:10 +0100116= mbed TLS 2.19.0 branch released 2019-09-06
Jaeden Amerod5d01a02019-03-26 14:50:06 +0000117
Gilles Peskine52157832018-08-11 00:51:04 +0200118Security
Jaeden Amero4197f0e2019-09-06 14:40:10 +0100119 * Fix a missing error detection in ECJPAKE. This could have caused a
120 predictable shared secret if a hardware accelerator failed and the other
121 side of the key exchange had a similar bug.
Gilles Peskine52157832018-08-11 00:51:04 +0200122 * When writing a private EC key, use a constant size for the private
123 value, as specified in RFC 5915. Previously, the value was written
124 as an ASN.1 INTEGER, which caused the size of the key to leak
125 about 1 bit of information on average and could cause the value to be
126 1 byte too large for the output buffer.
Janos Follath12fff152019-01-04 16:18:46 +0000127 * The deterministic ECDSA calculation reused the scheme's HMAC-DRBG to
128 implement blinding. Because of this for the same key and message the same
129 blinding value was generated. This reduced the effectiveness of the
130 countermeasure and leaked information about the private key through side
131 channels. Reported by Jack Lloyd.
Gilles Peskine52157832018-08-11 00:51:04 +0200132
Jaeden Ameroc73fde72019-03-27 14:50:21 +0000133Features
Manuel Pégourié-Gonnard64722632019-05-24 10:23:55 +0200134 * Add new API functions mbedtls_ssl_session_save() and
Manuel Pégourié-Gonnard686adb42019-06-03 09:55:16 +0200135 mbedtls_ssl_session_load() to allow serializing a session, for example to
Manuel Pégourié-Gonnard64722632019-05-24 10:23:55 +0200136 store it in non-volatile storage, and later using it for TLS session
137 resumption.
Jarno Lamsa9e90df52019-08-23 09:08:31 +0300138 * Add a new API function mbedtls_ssl_check_record() to allow checking that
139 an incoming record is valid, authentic and has not been seen before. This
140 feature can be used alongside Connection ID and SSL context serialisation.
141 The feature is enabled at compile-time by MBEDTLS_SSL_RECORD_CHECKING
142 option.
Jaeden Amero49fcbea2019-08-30 15:50:45 +0100143 * New implementation of X25519 (ECDH using Curve25519) from Project Everest
144 (https://project-everest.github.io/). It can be enabled at compile time
145 with MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED. This implementation is formally
146 verified and significantly faster, but is only supported on x86 platforms
147 (32-bit and 64-bit) using GCC, Clang or Visual Studio. Contributed by
148 Christoph Wintersteiger from Microsoft Research.
Jaeden Amero8dd6bc72019-09-03 16:41:51 +0100149 * Add mbedtls_net_close(), enabling the building of forking servers where
150 the parent process closes the client socket and continue accepting, and
151 the child process closes the listening socket and handles the client
152 socket. Contributed by Robert Larsen in #2803.
Jaeden Ameroc73fde72019-03-27 14:50:21 +0000153
Gilles Peskine60b29d62019-08-14 18:37:59 +0200154API Changes
Gilles Peskine60b29d62019-08-14 18:37:59 +0200155 * Add DER-encoded test CRTs to library/certs.c, allowing
156 the example programs ssl_server2 and ssl_client2 to be run
157 if MBEDTLS_FS_IO and MBEDTLS_PEM_PARSE_C are unset. Fixes #2254.
158 * The HAVEGE state type now uses uint32_t elements instead of int.
Jaeden Amero49fcbea2019-08-30 15:50:45 +0100159 * The functions mbedtls_ecp_curve_list() and mbedtls_ecp_grp_id_list() now
160 list all curves for which at least one of ECDH or ECDSA is supported, not
161 just curves for which both are supported. Call mbedtls_ecdsa_can_do() or
162 mbedtls_ecdh_can_do() on each result to check whether each algorithm is
163 supported.
Jaeden Amero4197f0e2019-09-06 14:40:10 +0100164 * The new function mbedtls_ecdsa_sign_det_ext() is similar to
165 mbedtls_ecdsa_sign_det() but allows passing an external RNG for the
166 purpose of blinding.
Janos Follath12fff152019-01-04 16:18:46 +0000167
168New deprecations
169 * Deprecate mbedtls_ecdsa_sign_det() in favor of a functions that can take an
170 RNG function as an input.
171 * Calling mbedtls_ecdsa_write_signature() with NULL as the f_rng argument
172 is now deprecated.
Gilles Peskine60b29d62019-08-14 18:37:59 +0200173
Jaeden Amerod5d01a02019-03-26 14:50:06 +0000174Bugfix
Hanno Becker3c03a882019-06-04 10:27:43 +0100175 * Fix missing bounds checks in X.509 parsing functions that could
176 lead to successful parsing of ill-formed X.509 CRTs. Fixes #2437.
177 * Fix multiple X.509 functions previously returning ASN.1 low-level error
178 codes to always wrap these codes into X.509 high level error codes before
179 returning. Fixes #2431.
Simon Butcherf35bb5a2019-04-18 15:57:30 +0100180 * Fix to allow building test suites with any warning that detects unused
181 functions. Fixes #1628.
Jaeden Ameroa152e422019-05-29 09:38:29 +0100182 * Fix typo in net_would_block(). Fixes #528 reported by github-monoculture.
Jaeden Ameroa1809262019-05-30 13:15:33 +0100183 * Remove redundant include file in timing.c. Fixes #2640 reported by irwir.
Jaeden Amero32eb58f2019-05-30 13:18:24 +0100184 * Fix build failure when building with mingw on Windows by including
185 stdarg.h where needed. Fixes #2656.
Jaeden Amero4f4af6e2019-06-03 08:13:10 +0100186 * Fix Visual Studio Release x64 build configuration by inheriting
187 PlatformToolset from the project configuration. Fixes #1430 reported by
188 irwir.
Jaeden Amerod4311042019-06-03 08:27:16 +0100189 * Enable Suite B with subset of ECP curves. Make sure the code compiles even
190 if some curves are not defined. Fixes #1591 reported by dbedev.
Gilles Peskinef3820e32019-06-07 16:42:35 +0200191 * Fix misuse of signed arithmetic in the HAVEGE module. #2598
Hanno Becker73540c02019-05-04 08:18:09 +0100192 * Avoid use of statically sized stack buffers for certificate writing.
193 This previously limited the maximum size of DER encoded certificates
194 in mbedtls_x509write_crt_der() to 2Kb. Reported by soccerGB in #2631.
Sébastien Duquette661d7252019-06-23 17:45:26 -0400195 * Fix partial zeroing in x509_get_other_name. Found and fixed by ekse, #2716.
Gilles Peskine55603ee2019-08-03 14:08:46 +0200196 * Update test certificates that were about to expire. Reported by
197 Bernhard M. Wiedemann in #2357.
Gilles Peskinea5cb7d42019-08-05 11:34:11 +0200198 * Fix the build on ARMv5TE in ARM mode to not use assembly instructions
199 that are only available in Thumb mode. Fix contributed by Aurelien Jarno
200 in #2169.
Hanno Beckerbf84d502019-07-19 12:52:08 +0100201 * Fix propagation of restart contexts in restartable EC operations.
202 This could previously lead to segmentation faults in builds using an
203 address-sanitizer and enabling but not using MBEDTLS_ECP_RESTARTABLE.
Jaeden Ameroa66fc942019-09-03 13:45:34 +0100204 * Fix memory leak in in mpi_miller_rabin(). Contributed by
205 Jens Wiklander <jens.wiklander@linaro.org> in #2363
Andy Gross1f627142019-01-30 10:25:53 -0600206 * Improve code clarity in x509_crt module, removing false-positive
207 uninitialized variable warnings on some recent toolchains (GCC8, etc).
208 Discovered and fixed by Andy Gross (Linaro), #2392.
Jaeden Ameroaeb5a4a2019-09-05 14:43:14 +0100209 * Fix bug in endianness conversion in bignum module. This lead to
210 functionally incorrect code on bigendian systems which don't have
211 __BYTE_ORDER__ defined. Reported by Brendan Shanks. Fixes #2622.
Jaeden Amero4e0db562019-08-27 11:18:28 +0100212
Jaeden Amerod5d01a02019-03-26 14:50:06 +0000213Changes
Hanno Becker136512b2019-05-30 11:16:02 +0100214 * Replace multiple uses of MD2 by SHA-256 in X.509 test suite. Fixes #821.
Gilles Peskinec7ad1222019-06-13 16:44:19 +0200215 * Make it easier to define MBEDTLS_PARAM_FAILED as assert (which config.h
216 suggests). #2671
Jaeden Amerobefe1e152019-06-03 09:14:14 +0100217 * Make `make clean` clean all programs always. Fixes #1862.
Peter Kolbuse4e2d3a2018-12-24 09:04:54 -0600218 * Add a Dockerfile and helper scripts (all-in-docker.sh, basic-in-docker.sh,
219 docker-env.sh) to simplify running test suites on a Linux host. Contributed
220 by Peter Kolbus (Garmin).
Jaeden Amerof473fa82019-07-09 13:41:54 +0100221 * Add `reproducible` option to `ssl_client2` and `ssl_server2` to enable
222 test runs without variability. Contributed by Philippe Antoine (Catena
223 cyber) in #2681.
224 * Extended .gitignore to ignore Visual Studio artifacts. Fixed by ConfusedSushi.
Philippe Antoine801194b2019-06-04 14:17:41 +0200225 * Adds fuzz targets, especially for continuous fuzzing with OSS-Fuzz.
226 Contributed by Philippe Antoine (Catena cyber).
Jaeden Amerod5d01a02019-03-26 14:50:06 +0000227
Jaeden Amero3aeb13e2019-06-18 17:27:20 +0100228= mbed TLS 2.18.1 branch released 2019-07-12
229
Jaeden Ameroded319d2019-05-30 13:18:24 +0100230Bugfix
231 * Fix build failure when building with mingw on Windows by including
232 stdarg.h where needed. Fixes #2656.
233
Jaeden Amero3aeb13e2019-06-18 17:27:20 +0100234Changes
235 * Enable building of Mbed TLS as a CMake subproject. Suggested and fixed by
236 Ashley Duncan in #2609.
237
Jaeden Amerob1c72f52019-06-11 17:18:09 +0100238= mbed TLS 2.18.0 branch released 2019-06-11
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500239
Hanno Beckerac4172c2019-01-31 09:27:04 +0000240Features
241 * Add the Any Policy certificate policy oid, as defined in
242 rfc 5280 section 4.2.1.4.
243 * It is now possible to use NIST key wrap mode via the mbedtls_cipher API.
244 Contributed by Jack Lloyd and Fortanix Inc.
Andres Amaya Garciace049512019-02-20 10:00:03 +0000245 * Add the Wi-SUN Field Area Network (FAN) device extended key usage.
246 * Add the oid certificate policy x509 extension.
Andres Amaya Garcia4a512282018-10-30 18:21:41 +0000247 * It is now possible to perform RSA PKCS v1.5 signatures with RIPEMD-160 digest.
Andres Amaya Garcia22a89052018-11-26 20:57:49 +0000248 Contributed by Jack Lloyd and Fortanix Inc.
249 * Extend the MBEDTLS_SSL_EXPORT_KEYS to export the handshake randbytes,
Hanno Beckerac4172c2019-01-31 09:27:04 +0000250 and the used tls-prf.
251 * Add public API for tls-prf function, according to requested enum.
252 * Add support for parsing otherName entries in the Subject Alternative Name
253 X.509 certificate extension, specifically type hardware module name,
Hanno Beckere31505d2019-02-07 13:42:45 +0000254 as defined in RFC 4108 section 5.
255 * Add support for parsing certificate policies extension, as defined in
256 RFC 5280 section 4.2.1.4. Currently, only the "Any Policy" policy is
257 supported.
258 * List all SAN types in the subject_alt_names field of the certificate.
259 Resolves #459.
260 * Add support for draft-05 of the Connection ID extension, as specified
Paul Bakker5121ce52009-01-03 21:22:43 +0000261 in https://tools.ietf.org/html/draft-ietf-tls-dtls-connection-id-05.
262 The Connection ID extension allows to keep DTLS connections beyond the
Paul Bakker99ed6782011-01-05 14:48:42 +0000263 lifetime of the underlying transport by adding a connection identifier
264 to the DTLS record header. This identifier can be used to associated an
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500265 incoming record with the correct connection data even after the peer has
266 changed its IP or port. The feature is enabled at compile-time by setting
Hanno Beckerac4172c2019-01-31 09:27:04 +0000267 MBEDTLS_SSL_DTLS_CONNECTION_ID (disabled by default), and at run-time
268 through the new APIs mbedtls_ssl_conf_cid() and mbedtls_ssl_set_cid().
269
Paul Bakker5121ce52009-01-03 21:22:43 +0000270
Jaeden Amero4e0db562019-08-27 11:18:28 +0100271API Changes
272 * Extend the MBEDTLS_SSL_EXPORT_KEYS to export the handshake randbytes,
273 and the used tls-prf.
274 * Add public API for tls-prf function, according to requested enum.
275
Paul Bakker5121ce52009-01-03 21:22:43 +0000276Bugfix
277 * Fix private key DER output in the key_app_writer example. File contents
278 were shifted by one byte, creating an invalid ASN.1 tag. Fixed by
279 Christian Walther in #2239.
280 * Fix potential memory leak in X.509 self test. Found and fixed by
281 Junhwan Park, #2106.
282 * Reduce stack usage of hkdf tests. Fixes #2195.
283 * Fix 1-byte buffer overflow in mbedtls_mpi_write_string() when
284 used with negative inputs. Found by Guido Vranken in #2404. Credit to
285 OSS-Fuzz.
286 * Fix bugs in the AEAD test suite which would be exposed by ciphers which
287 either used both encrypt and decrypt key schedules, or which perform padding.
288 GCM and CCM were not affected. Fixed by Jack Lloyd.
289 * Fix incorrect default port number in ssl_mail_client example's usage.
290 Found and fixed by irwir. #2337
291 * Add psa_util.h to test/cpp_dummy_build to fix build_default_make_gcc_and_cxx.
292 Fixed by Peter Kolbus (Garmin). #2579
293 * Add missing parentheses around parameters in the definition of the
Paul Bakker99ed6782011-01-05 14:48:42 +0000294 public macro MBEDTLS_X509_ID_FLAG. This could lead to invalid evaluation
295 in case operators binding less strongly than subtraction were used
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500296 for the parameter.
297 * Add a check for MBEDTLS_X509_CRL_PARSE_C in ssl_server2, guarding the crl
Hanno Beckerac4172c2019-01-31 09:27:04 +0000298 sni entry parameter. Reported by inestlerode in #560.
299 * Set the next sequence of the subject_alt_name to NULL when deleting
300 sequence on failure. Found and fix suggested by Philippe Antoine.
301 Credit to OSS-Fuzz.
302
Paul Bakker5121ce52009-01-03 21:22:43 +0000303Changes
304 * Server's RSA certificate in certs.c was SHA-1 signed. In the default
305 mbedTLS configuration only SHA-2 signed certificates are accepted.
306 This certificate is used in the demo server programs, which lead the
307 client programs to fail at the peer's certificate verification
308 due to an unacceptable hash signature. The certificate has been
309 updated to one that is SHA-256 signed. Fix contributed by
310 Illya Gerasymchuk.
311 * Return from various debugging routines immediately if the
312 provided SSL context is unset.
313 * Remove dead code from bignum.c in the default configuration.
314 Found by Coverity, reported and fixed by Peter Kolbus (Garmin). Fixes #2309.
315 * Add test for minimal value of MBEDTLS_MPI_WINDOW_SIZE to all.sh.
316 Contributed by Peter Kolbus (Garmin).
317 * Change wording in the `mbedtls_ssl_conf_max_frag_len()`'s documentation to
318 improve clarity. Fixes #2258.
319
320= mbed TLS 2.17.0 branch released 2019-03-19
Paul Bakker99ed6782011-01-05 14:48:42 +0000321
322Features
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500323 * Add a new X.509 API call `mbedtls_x509_parse_der_nocopy()`
324 which allows copy-less parsing of DER encoded X.509 CRTs,
Hanno Beckerac4172c2019-01-31 09:27:04 +0000325 at the cost of additional lifetime constraints on the input
326 buffer, but at the benefit of reduced RAM consumption.
327 * Add a new function mbedtls_asn1_write_named_bitstring() to write ASN.1
328 named bitstring in DER as required by RFC 5280 Appendix B.
329 * Add MBEDTLS_REMOVE_3DES_CIPHERSUITES to allow removing 3DES ciphersuites
330 from the default list (enabled by default). See
331 https://sweet32.info/SWEET32_CCS16.pdf.
332
333API Changes
334 * Add a new X.509 API call `mbedtls_x509_parse_der_nocopy()`.
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500335 See the Features section for more information.
336 * Allow to opt in to the removal the API mbedtls_ssl_get_peer_cert()
337 for the benefit of saving RAM, by disabling the new compile-time
338 option MBEDTLS_SSL_KEEP_PEER_CERTIFICATE (enabled by default for
339 API stability). Disabling this option makes mbedtls_ssl_get_peer_cert()
340 always return NULL, and removes the peer_cert field from the
341 mbedtls_ssl_session structure which otherwise stores the peer's
Gilles Peskineccf8ba02018-11-07 22:39:16 +0100342 certificate.
343
344Security
345 * Make mbedtls_ecdh_get_params return an error if the second key
346 belongs to a different group from the first. Before, if an application
347 passed keys that belonged to different group, the first key's data was
348 interpreted according to the second group, which could lead to either
349 an error or a meaningless output from mbedtls_ecdh_get_params. In the
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500350 latter case, this could expose at most 5 bits of the private key.
351
352Bugfix
353 * Fix a compilation issue with mbedtls_ecp_restart_ctx not being defined
354 when MBEDTLS_ECP_ALT is defined. Reported by jwhui. Fixes #2242.
355 * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined.
356 Raised as a comment in #1996.
357 * Reduce the stack consumption of mbedtls_mpi_fill_random() which could
358 previously lead to a stack overflow on constrained targets.
359 * Add `MBEDTLS_SELF_TEST` for the mbedtls_self_test functions
360 in the header files, which missed the precompilation check. #971
361 * Fix returning the value 1 when mbedtls_ecdsa_genkey failed.
362 * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326.
Hanno Becker1b6d2b22019-01-10 09:22:16 +0000363 * Remove the mbedtls namespacing from the header file, to fix a "file not found"
364 build error. Fixed by Haijun Gu #2319.
Ron Eldor8a6917d2018-11-27 10:33:38 +0200365 * Fix signed-to-unsigned integer conversion warning
366 in X.509 module. Fixes #2212.
Peter Kolbus995d5c12019-02-03 08:41:41 -0600367 * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
368 Fixes #2190.
Andres Amaya Garciad588ff72018-09-26 10:59:20 +0100369 * Fix false failure in all.sh when backup files exist in include/mbedtls
370 (e.g. config.h.bak). Fixed by Peter Kolbus (Garmin) #2407.
371 * Ensure that unused bits are zero when writing ASN.1 bitstrings when using
372 mbedtls_asn1_write_bitstring().
373 * Fix issue when writing the named bitstrings in KeyUsage and NsCertType
374 extensions in CSRs and CRTs that caused these bitstrings to not be encoded
Simon Butcher41f95192018-12-01 18:42:47 +0000375 correctly as trailing zeroes were not accounted for as unused bits in the
376 leading content octet. Fixes #1610.
Hanno Beckerbd9d51d2019-01-30 15:14:21 +0000377
378Changes
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500379 * Reduce RAM consumption during session renegotiation by not storing
380 the peer CRT chain and session ticket twice.
381 * Include configuration file in all header files that use configuration,
382 instead of relying on other header files that they include.
383 Inserted as an enhancement for #1371
Andrzej Kurek8764ccc2019-02-05 04:57:13 -0500384 * Add support for alternative CSR headers, as used by Microsoft and defined
385 in RFC 7468. Found by Michael Ernst. Fixes #767.
386 * Correct many misspellings. Fixed by MisterDA #2371.
387 * Provide an abstraction of vsnprintf to allow alternative implementations
388 for platforms that don't provide it. Based on contributions by Joris Aerts
389 and Nathaniel Wesley Filardo.
390 * Fix clobber list in MIPS assembly for large integer multiplication.
391 Previously, this could lead to functionally incorrect assembly being
392 produced by some optimizing compilers, showing up as failures in
k-stachowiakc5a4a132019-02-05 09:11:58 +0100393 e.g. RSA or ECC signature operations. Reported in #1722, fix suggested
394 by Aurelien Jarno and submitted by Jeffrey Martin.
Andres Amaya Garciaaabe52f2018-10-16 22:18:53 +0100395 * Reduce the complexity of the timing tests. They were assuming more than the
396 underlying OS actually guarantees.
k-stachowiakcddbd012019-02-19 12:40:34 +0100397 * Fix configuration queries in ssl-opt.h. #2030
398 * Ensure that ssl-opt.h can be run in OS X. #2029
Andres Amaya Garciaf8dffb32019-02-19 20:14:00 +0000399 * Re-enable certain interoperability tests in ssl-opt.sh which had previously
400 been disabled for lack of a sufficiently recent version of GnuTLS on the CI.
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500401 * Ciphersuites based on 3DES now have the lowest priority by default when
402 they are enabled.
403
404= mbed TLS 2.16.0 branch released 2018-12-21
405
406Features
407 * Add a new config.h option of MBEDTLS_CHECK_PARAMS that enables validation
408 of parameters in the API. This allows detection of obvious misuses of the
409 API, such as passing NULL pointers. The API of existing functions hasn't
410 changed, but requirements on parameters have been made more explicit in
411 the documentation. See the corresponding API documentation for each
412 function to see for which parameter values it is defined. This feature is
413 disabled by default. See its API documentation in config.h for additional
414 steps you have to take when enabling it.
415
416API Changes
417 * The following functions in the random generator modules have been
418 deprecated and replaced as shown below. The new functions change
419 the return type from void to int to allow returning error codes when
420 using MBEDTLS_<MODULE>_ALT for the underlying AES or message digest
421 primitive. Fixes #1798.
422 mbedtls_ctr_drbg_update() -> mbedtls_ctr_drbg_update_ret()
423 mbedtls_hmac_drbg_update() -> mbedtls_hmac_drbg_update_ret()
424 * Extend ECDH interface to enable alternative implementations.
425 * Deprecate error codes of the form MBEDTLS_ERR_xxx_INVALID_KEY_LENGTH for
426 ARIA, CAMELLIA and Blowfish. These error codes will be replaced by
427 the more generic per-module error codes MBEDTLS_ERR_xxx_BAD_INPUT_DATA.
428 * Additional parameter validation checks have been added for the following
429 modules - AES, ARIA, Blowfish, CAMELLIA, CCM, GCM, DHM, ECP, ECDSA, ECDH,
430 ECJPAKE, SHA, Chacha20 and Poly1305, cipher, pk, RSA, and MPI.
431 Where modules have had parameter validation added, existing parameter
432 checks may have changed. Some modules, such as Chacha20 had existing
433 parameter validation whereas other modules had little. This has now been
434 changed so that the same level of validation is present in all modules, and
435 that it is now optional with the MBEDTLS_CHECK_PARAMS flag which by default
436 is off. That means that checks which were previously present by default
437 will no longer be.
438
439New deprecations
440 * Deprecate mbedtls_ctr_drbg_update and mbedtls_hmac_drbg_update
441 in favor of functions that can return an error code.
442
443Bugfix
444 * Fix for Clang, which was reporting a warning for the bignum.c inline
445 assembly for AMD64 targets creating string literals greater than those
446 permitted by the ISO C99 standard. Found by Aaron Jones. Fixes #482.
447 * Fix runtime error in `mbedtls_platform_entropy_poll()` when run
448 through qemu user emulation. Reported and fix suggested by randombit
449 in #1212. Fixes #1212.
450 * Fix an unsafe bounds check when restoring an SSL session from a ticket.
451 This could lead to a buffer overflow, but only in case ticket authentication
452 was broken. Reported and fix suggested by Guido Vranken in #659.
453 * Add explicit integer to enumeration type casts to example program
454 programs/pkey/gen_key which previously led to compilation failure
455 on some toolchains. Reported by phoenixmcallister. Fixes #2170.
456 * Fix double initialization of ECC hardware that made some accelerators
457 hang.
458 * Clarify documentation of mbedtls_ssl_set_own_cert() regarding the absence
Andrzej Kurek8764ccc2019-02-05 04:57:13 -0500459 of check for certificate/key matching. Reported by Attila Molnar, #507.
460
461 = mbed TLS 2.15.1 branch released 2018-11-30
462
463 Changes
464 * Update the Mbed Crypto submodule to version 0.1.0b2.
465
466 = mbed TLS 2.15.0 branch released 2018-11-23
467
468 Features
469 * Add an experimental build option, USE_CRYPTO_SUBMODULE, to enable use of
470 Mbed Crypto as the source of the cryptography implementation.
471 * Add an experimental configuration option, MBEDTLS_PSA_CRYPTO_C, to enable
472 the PSA Crypto API from Mbed Crypto when additionally used with the
473 USE_CRYPTO_SUBMODULE build option.
474
475 Changes
476 * Add unit tests for AES-GCM when called through mbedtls_cipher_auth_xxx()
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500477 from the cipher abstraction layer. Fixes #2198.
478
479= mbed TLS 2.14.1 branch released 2018-11-30
480
481Security
482 * Fix timing variations and memory access variations in RSA PKCS#1 v1.5
483 decryption that could lead to a Bleichenbacher-style padding oracle
484 attack. In TLS, this affects servers that accept ciphersuites based on
485 RSA decryption (i.e. ciphersuites whose name contains RSA but not
486 (EC)DH(E)). Discovered by Eyal Ronen (Weizmann Institute), Robert Gillham
487 (University of Adelaide), Daniel Genkin (University of Michigan),
488 Adi Shamir (Weizmann Institute), David Wong (NCC Group), and Yuval Yarom
489 (University of Adelaide, Data61). The attack is described in more detail
490 in the paper available here: http://cat.eyalro.net/cat.pdf CVE-2018-19608
491 * In mbedtls_mpi_write_binary(), don't leak the exact size of the number
492 via branching and memory access patterns. An attacker who could submit
493 a plaintext for RSA PKCS#1 v1.5 decryption but only observe the timing
494 of the decryption and not its result could nonetheless decrypt RSA
495 plaintexts and forge RSA signatures. Other asymmetric algorithms may
496 have been similarly vulnerable. Reported by Eyal Ronen, Robert Gillham,
497 Daniel Genkin, Adi Shamir, David Wong and Yuval Yarom.
498 * Wipe sensitive buffers on the stack in the CTR_DRBG and HMAC_DRBG
499 modules.
500
501API Changes
502 * The new functions mbedtls_ctr_drbg_update_ret() and
503 mbedtls_hmac_drbg_update_ret() are similar to mbedtls_ctr_drbg_update()
504 and mbedtls_hmac_drbg_update() respectively, but the new functions
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500505 report errors whereas the old functions return void. We recommend that
Simon Butcherc1b98922018-11-19 18:31:40 +0000506 applications use the new functions.
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200507
Hanno Beckerd3445da2018-11-02 09:36:45 +0000508= mbed TLS 2.14.0 branch released 2018-11-19
Simon Butcher681edee2018-11-07 16:25:38 +0000509
Simon Butcherb35e59d2018-11-19 15:49:26 +0000510Security
Simon Butcher681edee2018-11-07 16:25:38 +0000511 * Fix overly strict DN comparison when looking for CRLs belonging to a
512 particular CA. This previously led to ignoring CRLs when the CRL's issuer
513 name and the CA's subject name differed in their string encoding (e.g.,
514 one using PrintableString and the other UTF8String) or in the choice of
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100515 upper and lower case. Reported by Henrik Andersson of Bosch GmbH in issue
Simon Butcherb35e59d2018-11-19 15:49:26 +0000516 #1784.
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100517 * Fix a flawed bounds check in server PSK hint parsing. In case the
Simon Butcherb35e59d2018-11-19 15:49:26 +0000518 incoming message buffer was placed within the first 64KiB of address
519 space and a PSK-(EC)DHE ciphersuite was used, this allowed an attacker
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100520 to trigger a memory access up to 64KiB beyond the incoming message buffer,
521 potentially leading to an application crash or information disclosure.
522 * Fix mbedtls_mpi_is_prime() to use more rounds of probabilistic testing. The
523 previous settings for the number of rounds made it practical for an
Simon Butcher681edee2018-11-07 16:25:38 +0000524 adversary to construct non-primes that would be erroneously accepted as
525 primes with high probability. This does not have an impact on the
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100526 security of TLS, but can matter in other contexts with numbers chosen
527 potentially by an adversary that should be prime and can be validated.
528 For example, the number of rounds was enough to securely generate RSA key
529 pairs or Diffie-Hellman parameters, but was insufficient to validate
530 Diffie-Hellman parameters properly.
Hanno Beckerd3445da2018-11-02 09:36:45 +0000531 See "Prime and Prejudice" by by Martin R. Albrecht and Jake Massimo and
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200532 Kenneth G. Paterson and Juraj Somorovsky.
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200533
Simon Butcherb35e59d2018-11-19 15:49:26 +0000534Features
535 * Add support for temporarily suspending expensive ECC computations after
536 some configurable amount of operations. This is intended to be used in
537 constrained, single-threaded systems where ECC is time consuming and can
538 block other operations until they complete. This is disabled by default,
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200539 but can be enabled by MBEDTLS_ECP_RESTARTABLE at compile time and
540 configured by mbedtls_ecp_set_max_ops() at runtime. It applies to the new
541 xxx_restartable functions in ECP, ECDSA, PK and X.509 (CRL not supported
542 yet), and to existing functions in ECDH and SSL (currently only
Simon Butcher4a865ef2018-10-28 18:00:51 +0000543 implemented client-side, for ECDHE-ECDSA ciphersuites in TLS 1.2,
544 including client authentication).
545 * Add support for Arm CPU DSP extensions to accelerate asymmetric key
546 operations. On CPUs where the extensions are available, they can accelerate
Simon Butcherb35e59d2018-11-19 15:49:26 +0000547 MPI multiplications used in ECC and RSA cryptography. Contributed by
548 Aurelien Jarno.
549 * Extend RSASSA-PSS signature to allow a smaller salt size. Previously, PSS
550 signature always used a salt with the same length as the hash, and returned
551 an error if this was not possible. Now the salt size may be up to two bytes
Simon Butcher06d80cf2018-11-06 23:46:04 +0000552 shorter. This allows the library to support all hash and signature sizes
553 that comply with FIPS 186-4, including SHA-512 with a 1024-bit key.
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +0200554 * Add support for 128-bit keys in CTR_DRBG. Note that using keys shorter
Simon Butchere51d4b32018-11-09 19:57:53 +0000555 than 256 bits limits the security of generated material to 128 bits.
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000556
557API Changes
558 * Add a common error code of `MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED` for
559 a feature that is not supported by underlying alternative
Simon Butchere51d4b32018-11-09 19:57:53 +0000560 implementations implementing cryptographic primitives. This is useful for
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300561 hardware accelerators that don't implement all options or features.
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000562
563New deprecations
564 * All module specific errors following the form
565 MBEDTLS_ERR_XXX_FEATURE_UNAVAILABLE that indicate a feature is not
Simon Butcher681edee2018-11-07 16:25:38 +0000566 supported are deprecated and are now replaced by the new equivalent
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000567 platform error.
568 * All module specific generic hardware acceleration errors following the
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100569 form MBEDTLS_ERR_XXX_HW_ACCEL_FAILED that are deprecated and are replaced
570 by the equivalent plaform error.
571 * Deprecate the function mbedtls_mpi_is_prime() in favor of
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300572 mbedtls_mpi_is_prime_ext() which allows specifying the number of
Simon Butcherb3633822018-07-30 22:10:48 +0100573 Miller-Rabin rounds.
Simon Butcher2b5be1e2018-10-30 15:55:10 +0000574
575Bugfix
576 * Fix wrong order of freeing in programs/ssl/ssl_server2 example
577 application leading to a memory leak in case both
Simon Butcherc86993e2018-09-27 09:48:54 +0100578 MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set.
579 Fixes #2069.
Simon Butcher1afc7672018-09-27 11:35:19 +0100580 * Fix a bug in the update function for SSL ticket keys which previously
581 invalidated keys of a lifetime of less than a 1s. Fixes #1968.
Hanno Beckerf24c3362018-10-17 14:53:05 +0100582 * Fix failure in hmac_drbg in the benchmark sample application, when
583 MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
584 * Fix a bug in the record decryption routine ssl_decrypt_buf()
Hanno Becker617a3212018-10-05 09:51:36 +0100585 which lead to accepting properly authenticated but improperly
586 padded records in case of CBC ciphersuites using Encrypt-then-MAC.
Simon Butcher681edee2018-11-07 16:25:38 +0000587 * Fix memory leak and freeing without initialization in the example
588 program programs/x509/cert_write. Fixes #1422.
Hanno Becker7e1f3be2018-10-15 13:20:28 +0100589 * Ignore IV in mbedtls_cipher_set_iv() when the cipher mode is
590 MBEDTLS_MODE_ECB. Found by ezdevelop. Fixes #1091.
591 * Zeroize memory used for buffering or reassembling handshake messages
592 after use.
Hanno Beckerf143a782018-11-06 17:43:16 +0000593 * Use `mbedtls_platform_zeroize()` instead of `memset()` for zeroization
594 of sensitive data in the example programs aescrypt2 and crypt_and_hash.
595 * Change the default string format used for various X.509 DN attributes to
Simon Butcher681edee2018-11-07 16:25:38 +0000596 UTF8String. Previously, the use of the PrintableString format led to
597 wildcards and non-ASCII characters being unusable in some DN attributes.
Hanno Beckere4f965d2018-10-11 10:54:45 +0100598 Reported by raprepo in #1860 and by kevinpt in #468. Fix contributed by
599 Thomas-Dee.
600 * Fix compilation failure for configurations which use compile time
601 replacements of standard calloc/free functions through the macros
Simon Butcherc86993e2018-09-27 09:48:54 +0100602 MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO.
603 Reported by ole-de and ddhome2006. Fixes #882, #1642 and #1706.
Simon Butcherc0514bf2018-09-26 18:07:18 +0100604
Simon Butcherc86993e2018-09-27 09:48:54 +0100605Changes
Gilles Peskine604ccc62018-07-10 15:55:52 +0200606 * Removed support for Yotta as a build tool.
607 * Add tests for session resumption in DTLS.
608 * Close a test gap in (D)TLS between the client side and the server side:
Simon Butcherddc9e262018-10-27 18:27:41 +0100609 test the handling of large packets and small packets on the client side
610 in the same way as on the server side.
Simon Butcher404aa652018-10-01 14:44:22 +0100611 * Change the dtls_client and dtls_server samples to work by default over
612 IPv6 and optionally by a build option over IPv4.
613 * Change the use of Windows threading to use Microsoft Visual C++ runtime
Simon Butcher681edee2018-11-07 16:25:38 +0000614 calls, rather than Win32 API calls directly. This is necessary to avoid
615 conflict with C runtime usage. Found and fixed by irwir.
616 * Remember the string format of X.509 DN attributes when replicating
617 X.509 DNs. Previously, DN attributes were always written in their default
618 string format (mostly PrintableString), which could lead to CRTs being
619 created which used PrintableStrings in the issuer field even though the
620 signing CA used UTF8Strings in its subject field; while X.509 compliant,
621 such CRTs were rejected in some applications, e.g. some versions of
Hanno Becker0bb204c2018-10-30 10:08:33 +0000622 Firefox, curl and GnuTLS. Reported in #1033 by Moschn. Fix contributed by
623 Thomas-Dee.
Janos Follath33329372018-09-06 10:41:33 +0100624 * Improve documentation of mbedtls_ssl_get_verify_result().
625 Fixes #517 reported by github-monoculture.
626 * Add MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR flag to mbedtls_mpi_gen_prime() and
Simon Butcherc86993e2018-09-27 09:48:54 +0100627 use it to reduce error probability in RSA key generation to levels mandated
Simon Butcher5d40f672018-09-06 16:24:48 +0100628 by FIPS-186-4.
Simon Butcherb3633822018-07-30 22:10:48 +0100629
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100630= mbed TLS 2.13.1 branch released 2018-09-06
Hanno Beckeracef2922018-09-05 16:19:07 +0100631
Hanno Becker921b76d2018-09-05 16:21:36 +0100632API Changes
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100633 * Extend the platform module with an abstraction mbedtls_platform_gmtime_r()
Hanno Beckeracef2922018-09-05 16:19:07 +0100634 whose implementation should behave as a thread-safe version of gmtime().
635 This allows users to configure such an implementation at compile time when
636 the target system cannot be deduced automatically, by setting the option
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100637 MBEDTLS_PLATFORM_GMTIME_R_ALT. At this stage Mbed TLS is only able to
Simon Butcherb3633822018-07-30 22:10:48 +0100638 automatically select implementations for Windows and POSIX C libraries.
Andres Amaya Garcia8c9a6202018-09-05 11:30:28 +0100639
640Bugfix
Simon Butcherb3633822018-07-30 22:10:48 +0100641 * Fix build failures on platforms where only gmtime() is available but
Simon Butcher4d075cd2018-08-31 15:59:10 +0100642 neither gmtime_r() nor gmtime_s() are present. Fixes #1907.
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100643
k-stachowiak21feae52018-07-09 14:42:35 +0200644= mbed TLS 2.13.0 branch released 2018-08-31
k-stachowiak6ca436a2018-07-16 12:20:10 +0200645
646Security
647 * Fix an issue in the X.509 module which could lead to a buffer overread
648 during certificate extensions parsing. In case of receiving malformed
k-stachowiak21feae52018-07-09 14:42:35 +0200649 input (extensions length field equal to 0), an illegal read of one byte
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200650 beyond the input buffer is made. Found and analyzed by Nathan Crandall.
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200651
652Features
Manuel Pégourié-Gonnardf2f1d402018-08-21 09:53:22 +0200653 * Add support for fragmentation of outgoing DTLS handshake messages. This
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200654 is controlled by the maximum fragment length as set locally or negotiated
Manuel Pégourié-Gonnardb8eec192018-08-20 09:34:02 +0200655 with the peer, as well as by a new per-connection MTU option, set using
656 mbedtls_ssl_set_mtu().
657 * Add support for auto-adjustment of MTU to a safe value during the
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100658 handshake when flights do not get through (RFC 6347, section 4.1.1.1,
659 last paragraph).
Hanno Becker02f6f5a2018-08-28 12:54:27 +0100660 * Add support for packing multiple records within a single datagram,
Hanno Beckeraa249372018-08-22 10:27:13 +0100661 enabled by default.
662 * Add support for buffering out-of-order handshake messages in DTLS.
663 The maximum amount of RAM used for this can be controlled by the
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100664 compile-time constant MBEDTLS_SSL_DTLS_MAX_BUFFERING defined
665 in mbedtls/config.h.
Hanno Becker1841b0a2018-08-24 11:13:57 +0100666
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100667API Changes
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200668 * Add function mbedtls_ssl_set_datagram_packing() to configure
Gilles Peskine104d8582018-06-27 10:57:33 +0200669 the use of datagram packing (enabled by default).
Simon Butcherb5afb972018-08-31 11:59:56 +0100670
671Bugfix
Gilles Peskine104d8582018-06-27 10:57:33 +0200672 * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation
673 failure in the function could lead to other buffers being leaked.
Jaeden Amerof48163a2018-08-10 10:49:10 +0100674 * Fixes an issue with MBEDTLS_CHACHAPOLY_C which would not compile if
675 MBEDTLS_ARC4_C and MBEDTLS_CIPHER_NULL_CIPHER weren't also defined. #1890
Ron Eldor3f38cf72018-06-21 16:40:24 +0300676 * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails.
Ron Eldor84e62f82018-06-28 11:09:09 +0300677 Fix contributed by Espressif Systems.
678 * Add ecc extensions only if an ecc based ciphersuite is used.
Simon Butcherb5afb972018-08-31 11:59:56 +0100679 This improves compliance to RFC 4492, and as a result, solves
680 interoperability issues with BouncyCastle. Raised by milenamil in #1157.
Hanno Becker9dc3be72018-08-14 15:22:05 +0100681 * Replace printf with mbedtls_printf in the ARIA module. Found by
Hanno Becker361f2542018-08-13 16:36:58 +0100682 TrinityTonic in #1908.
Hanno Beckereb2b15a2018-08-17 09:47:22 +0100683 * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len()
684 and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941.
685 * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake
686 with TLS versions 1.1 and earlier when the server requested authentication
687 without providing a list of CAs. This was due to an overly strict bounds
Hanno Becker44814642018-08-03 09:53:48 +0100688 check in parsing the CertificateRequest message,
689 introduced in Mbed TLS 2.12.0. Fixes #1954.
690 * Fix a miscalculation of the maximum record expansion in
Simon Butcherb5afb972018-08-31 11:59:56 +0100691 mbedtls_ssl_get_record_expansion() in case of ChachaPoly ciphersuites,
692 or CBC ciphersuites in (D)TLS versions 1.1 or higher. Fixes #1913, #1914.
Hanno Beckera70fb952017-10-08 16:13:03 +0100693 * Fix undefined shifts with negative values in certificates parsing
694 (found by Catena cyber using oss-fuzz)
Simon Butcherb5afb972018-08-31 11:59:56 +0100695 * Fix memory leak and free without initialization in pk_encrypt
Gilles Peskine104d8582018-06-27 10:57:33 +0200696 and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128.
Jaeden Amero372b50b2018-08-10 10:56:31 +0100697 * Remove redundant else statement. Raised by irwir. Fixes #1776.
698
699Changes
Jaeden Amero03bd4842018-08-10 11:17:14 +0100700 * Copy headers preserving timestamps when doing a "make install".
701 Contributed by xueruini.
Jaeden Amerod8f416982018-08-10 11:23:15 +0100702 * Allow the forward declaration of public structs. Contributed by Dawid
703 Drozd. Fixes #1215 raised by randombit.
Hanno Beckerf1035422018-08-16 16:07:27 +0100704 * Improve compatibility with some alternative CCM implementations by using
Janos Follath08a4aeb2018-08-06 14:20:15 +0100705 CCM test vectors from RAM.
706 * Add support for buffering of out-of-order handshake messages.
707 * Add warnings to the documentation of the HKDF module to reduce the risk
708 of misusing the mbedtls_hkdf_extract() and mbedtls_hkdf_expand()
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100709 functions. Fixes #1775. Reported by Brian J. Murray.
710
Gilles Peskine104d8582018-06-27 10:57:33 +0200711= mbed TLS 2.12.0 branch released 2018-07-25
712
713Security
714 * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384,
715 in (D)TLS 1.0 to 1.2, that allowed an active network attacker to
716 partially recover the plaintext of messages under some conditions by
717 exploiting timing measurements. With DTLS, the attacker could perform
718 this recovery by sending many messages in the same connection. With TLS
719 or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only
720 worked if the same secret (for example a HTTP Cookie) has been repeatedly
721 sent over connections manipulated by the attacker. Connections using GCM
722 or CCM instead of CBC, using hash sizes other than SHA-384, or using
723 Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was
724 caused by a miscalculation (for SHA-384) in a countermeasure to the
Manuel Pégourié-Gonnard1cc1fb02018-06-28 12:10:27 +0200725 original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi
726 Shamir.
727 * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to
Manuel Pégourié-Gonnard830ce112018-07-11 18:27:08 +0200728 1.2, that allowed a local attacker, able to execute code on the local
Antonin Décimo36e89b52019-01-23 15:24:37 +0100729 machine as well as manipulate network packets, to partially recover the
Manuel Pégourié-Gonnard830ce112018-07-11 18:27:08 +0200730 plaintext of messages under some conditions by using a cache attack
731 targeting an internal MD/SHA buffer. With TLS or if
732 mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if
733 the same secret (for example a HTTP Cookie) has been repeatedly sent over
734 connections manipulated by the attacker. Connections using GCM or CCM
Manuel Pégourié-Gonnard7b420302018-06-28 10:38:35 +0200735 instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected.
736 Found by Kenny Paterson, Eyal Ronen and Adi Shamir.
737 * Add a counter-measure against a vulnerability in TLS ciphersuites based
738 on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to
739 execute code on the local machine as well as manipulate network packets,
740 to partially recover the plaintext of messages under some conditions (see
741 previous entry) by using a cache attack targeting the SSL input record
742 buffer. Connections using GCM or CCM instead of CBC or using
Gilles Peskine104d8582018-06-27 10:57:33 +0200743 Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson,
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200744 Eyal Ronen and Adi Shamir.
745
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200746Features
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100747 * Add new crypto primitives from RFC 7539: stream cipher Chacha20, one-time
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200748 authenticator Poly1305 and AEAD construct Chacha20-Poly1305. Contributed
Simon Butcher231d7e52018-07-10 11:56:19 +0100749 by Daniel King.
750 * Add support for CHACHA20-POLY1305 ciphersuites from RFC 7905.
Simon Butcher00af4472018-07-10 15:35:43 +0100751 * Add platform support for the Haiku OS. (https://www.haiku-os.org).
752 Contributed by Augustin Cavalier.
753 * Make the receive and transmit buffers independent sizes, for situations
754 where the outgoing buffer can be fixed at a smaller size than the incoming
755 buffer, which can save some RAM. If buffer lengths are kept equal, there
Ron Eldor9cf0d532018-07-15 09:34:35 +0300756 is no functional difference. Contributed by Angus Gratton, and also
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100757 independently contributed again by Paul Sokolovsky.
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200758 * Add support for key wrapping modes based on AES as defined by
Simon Butcher9e02b972018-06-28 11:56:57 +0100759 NIST SP 800-38F algorithms KW and KWP and by RFC 3394 and RFC 5649.
760
761Bugfix
niisatob7d39db2018-06-25 20:44:57 +0900762 * Fix the key_app_writer example which was writing a leading zero byte which
niisato164b9cd2018-06-25 20:47:05 +0900763 was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
Simon Butcher1d97cab2018-06-28 12:06:16 +0100764 * Fix compilation error on C++, because of a variable named new.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100765 Found and fixed by Hirotaka Niisato in #1783.
Andres Amaya Garciaa562c262017-07-11 14:39:30 +0100766 * Fix "no symbols" warning issued by ranlib when building on Mac OS X. Fix
767 contributed by tabascoeye.
Simon Butcher1ab9b572018-06-28 12:10:56 +0100768 * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
769 return value. Found by @davidwu2000. #839
Simon Butcher05fa46e2018-07-02 12:00:54 +0100770 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
771 Philippe Antoine. Fixes #1623.
Ron Eldorda2a3122018-06-17 14:51:59 +0300772 * Remove unused headers included in x509.c. Found by Chris Hanson and fixed
773 by Brendan Shanks. Part of a fix for #992.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100774 * Fix compilation error when MBEDTLS_ARC4_C is disabled and
775 MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
Simon Butcher6c344422018-06-24 16:20:56 +0100776 * Added length checks to some TLS parsing functions. Found and fixed by
777 Philippe Antoine from Catena cyber. #1663.
Ron Eldor6332e362017-10-01 17:11:54 +0300778 * Fix the inline assembly for the MPI multiply helper function for i386 and
Ron Eldor6fd941f2017-05-14 16:17:33 +0300779 i386 with SSE2. Found by László Langó. Fixes #1550
Simon Butcherecb635e2018-07-24 10:03:41 +0100780 * Fix namespacing in header files. Remove the `mbedtls` namespacing in
781 the `#include` in the header files. Resolves #857
782 * Fix compiler warning of 'use before initialisation' in
Simon Butcher05330542018-07-24 12:54:15 +0100783 mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid
784 Drozd. #1098
785 * Fix decryption for zero length messages (which contain all padding) when a
786 CBC based ciphersuite is used together with Encrypt-then-MAC. Previously,
787 such a message was wrongly reported as an invalid record and therefore lead
788 to the connection being terminated. Seen most often with OpenSSL using
Andres Amaya Garcia81f06332018-07-04 10:01:39 +0100789 TLS 1.0. Reported by @kFYatek and by Conor Murphy on the forum. Fix
790 contributed by Espressif Systems. Fixes #1632
791 * Fix ssl_client2 example to send application data with 0-length content
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100792 when the request_size argument is set to 0 as stated in the documentation.
793 Fixes #1833.
Simon Butcher2c929492018-07-24 17:20:17 +0100794 * Correct the documentation for `mbedtls_ssl_get_session()`. This API has
Simon Butcher9e02b972018-06-28 11:56:57 +0100795 deep copy of the session, and the peer certificate is not lost. Fixes #926.
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100796 * Fix build using -std=c99. Fixed by Nick Wilson.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100797
798Changes
799 * Fail when receiving a TLS alert message with an invalid length, or invalid
800 zero-length messages when using TLS 1.2. Contributed by Espressif Systems.
801 * Change the default behaviour of mbedtls_hkdf_extract() to return an error
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100802 when calling with a NULL salt and non-zero salt_len. Contributed by
803 Brian J Murray
Nicholas Wilson512b4ee2017-12-05 12:07:33 +0000804 * Change the shebang line in Perl scripts to look up perl in the PATH.
805 Contributed by fbrosson.
806 * Allow overriding the time on Windows via the platform-time abstraction.
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100807 Fixed by Nick Wilson.
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +0200808 * Use gmtime_r/gmtime_s for thread-safety. Fixed by Nick Wilson.
809
810= mbed TLS 2.11.0 branch released 2018-06-18
Simon Butcher4ed38802018-06-12 17:35:06 +0100811
812Features
813 * Add additional block mode, OFB (Output Feedback), to the AES module and
814 cipher abstraction module.
815 * Implement the HMAC-based extract-and-expand key derivation function
Jaeden Amerof4474e72018-05-23 14:21:02 +0100816 (HKDF) per RFC 5869. Contributed by Thomas Fossati.
817 * Add support for the CCM* block cipher mode as defined in IEEE Std. 802.15.4.
Gilles Peskineb44692f2018-04-24 12:18:19 +0200818 * Add support for the XTS block cipher mode with AES (AES-XTS).
819 Contributed by Aorimn in pull request #414.
820 * In TLS servers, support offloading private key operations to an external
Simon Butcherebe23ed2018-06-12 16:46:45 +0100821 cryptoprocessor. Private key operations can be asynchronous to allow
Simon Butcher601144e2018-06-12 17:04:58 +0100822 non-blocking operation of the TLS server stack.
Simon Butcher4ed38802018-06-12 17:35:06 +0100823
824Bugfix
Simon Butchere5cd8682018-06-14 10:30:19 +0100825 * Fix the cert_write example to handle certificates signed with elliptic
826 curves as well as RSA. Fixes #777 found by dbedev.
Simon Butcher600c5e62018-06-14 08:58:59 +0100827 * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
828 used by user applications. Found and fixed by Fabio Alessandrelli.
Simon Butcher925568a2018-06-18 11:54:44 +0100829 * Fix compilation warnings with IAR toolchain, on 32 bit platform.
Simon Butcher4ed38802018-06-12 17:35:06 +0100830 Reported by rahmanih in #683
831 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
832
Simon Butcherb6a5bff2018-06-18 11:51:36 +0100833Changes
834 * Changed CMake defaults for IAR to treat all compiler warnings as errors.
835 * Changed the Clang parameters used in the CMake build files to work for
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200836 versions later than 3.6. Versions of Clang earlier than this may no longer
Simon Butcherd5a09f12018-06-06 14:47:47 +0100837 work. Fixes #1072
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100838
Manuel Pégourié-Gonnard08d1e912018-02-27 12:43:35 +0100839= mbed TLS 2.10.0 branch released 2018-06-06
840
841Features
842 * Add support for ARIA cipher (RFC 5794) and associated TLS ciphersuites
Gilles Peskine80aa3b82018-04-04 10:33:45 +0200843 (RFC 6209). Disabled by default, see MBEDTLS_ARIA_C in config.h
Andres Amaya Garcia19624052018-03-08 20:06:03 +0000844
845API Changes
846 * Extend the platform module with a util component that contains
847 functionality shared by multiple Mbed TLS modules. At this stage
848 platform_util.h (and its associated platform_util.c) only contain
849 mbedtls_platform_zeroize(), which is a critical function from a security
850 point of view. mbedtls_platform_zeroize() needs to be regularly tested
851 against compilers to ensure that calls to it are not removed from the
852 output binary as part of redundant code elimination optimizations.
Hanno Becker2bd57572018-03-28 14:52:35 +0100853 Therefore, mbedtls_platform_zeroize() is moved to the platform module to
Simon Butcherd72700a2018-06-01 19:11:55 +0100854 facilitate testing and maintenance.
855
856Bugfix
857 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100858 build to fail. Found by zv-io. Fixes #1651.
859
Moran Pekera64fba42018-02-25 13:29:03 +0200860Changes
861 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100862 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
Jaeden Amero7d7bad62018-04-27 13:07:13 +0100863 TrinityTonic. #1359.
Ron Eldorfb46c322016-12-16 16:15:56 +0200864
Simon Butcherf85c90a2017-07-27 15:11:52 +0100865= mbed TLS 2.9.0 branch released 2018-04-30
Simon Butcherb03120a2018-04-30 16:40:25 +0100866
867Security
868 * Fix an issue in the X.509 module which could lead to a buffer overread
869 during certificate validation. Additionally, the issue could also lead to
870 unnecessary callback checks being made or to some validation checks to be
871 omitted. The overread could be triggered remotely, while the other issues
872 would require a non DER-compliant certificate to be correctly signed by a
873 trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
874 luocm. Fixes #825.
875 * Fix the buffer length assertion in the ssl_parse_certificate_request()
876 function which led to an arbitrary overread of the message buffer. The
877 overreads could be caused by receiving a malformed message at the point
878 where an optional signature algorithms list is expected when the signature
Andrzej Kurekb7a18c02018-04-25 05:25:30 -0400879 algorithms section is too short. In builds with debug output, the overread
Simon Butcherb03120a2018-04-30 16:40:25 +0100880 data is output with the debug data.
881 * Fix a client-side bug in the validation of the server's ciphersuite choice
882 which could potentially lead to the client accepting a ciphersuite it didn't
883 offer or a ciphersuite that cannot be used with the TLS or DTLS version
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100884 chosen by the server. This could lead to corruption of internal data
Gilles Peskine15ad5792018-03-22 22:21:55 +0100885 structures for some configurations.
Simon Butcherb03120a2018-04-30 16:40:25 +0100886
887Features
888 * Add an option, MBEDTLS_AES_FEWER_TABLES, to dynamically compute smaller AES
Gilles Peskine15ad5792018-03-22 22:21:55 +0100889 tables during runtime, thereby reducing the RAM/ROM footprint by ~6KiB.
890 Suggested and contributed by jkivilin in pull request #394.
891 * Add initial support for Curve448 (RFC 7748). Only mbedtls_ecp_mul() and
Simon Butchere6a2a1a2018-05-01 13:57:53 +0100892 ECDH primitive functions (mbedtls_ecdh_gen_public(),
Hanno Becker371f31c2017-06-07 15:56:54 +0100893 mbedtls_ecdh_compute_shared()) are supported for now. Contributed by
894 Nicholas Wilson in pull request #348.
Simon Butcherb03120a2018-04-30 16:40:25 +0100895
896API Changes
897 * Extend the public API with the function of mbedtls_net_poll() to allow user
898 applications to wait for a network context to become ready before reading
899 or writing.
900 * Add function mbedtls_ssl_check_pending() to the public API to allow
Gilles Peskine557e77d2018-04-04 09:18:11 +0200901 a check for whether more more data is pending to be processed in the
902 internal message buffers.
Hanno Becker371f31c2017-06-07 15:56:54 +0100903 This function is necessary to determine when it is safe to idle on the
Andres AGee7157e2016-12-07 10:25:19 +0000904 underlying transport in case event-driven IO is used.
Simon Butcherb03120a2018-04-30 16:40:25 +0100905
Gilles Peskine08185402018-03-22 21:50:48 +0100906Bugfix
Gilles Peskine51d93942018-03-23 01:42:44 +0100907 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
908 contributed by Brian J Murray and David Brown.
909 * Add missing dependencies in test suites that led to build failures
Jaeden Amerob6049602018-03-26 18:25:58 +0100910 in configurations that omit certain hashes or public-key algorithms.
911 Fixes #1040.
Gilles Peskinef69ad5a2018-03-27 23:08:53 +0200912 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
Simon Butcherb03120a2018-04-30 16:40:25 +0100913 #1353
914 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
915 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
916 Deomid Ryabkov. Fixes #1299, #1475.
Jethro Beekmand2df9362018-02-16 13:11:04 -0800917 * Fix the Makefile build process for building shared libraries on Mac OS X.
Simon Butcherb03120a2018-04-30 16:40:25 +0100918 Fixed by mnacamura.
Jethro Beekmancb122372018-04-11 08:40:38 -0700919 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcherb03120a2018-04-30 16:40:25 +0100920 unable to parse keys which had only the optional parameters field of the
921 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
922 * Return the plaintext data more quickly on unpadded CBC decryption, as
Gilles Peskineb9e86962018-04-04 09:20:59 +0200923 stated in the mbedtls_cipher_update() documentation. Contributed by
924 Andy Leiserson.
Hanno Beckerc53826b2017-10-12 07:46:41 +0100925 * Fix overriding and ignoring return values when parsing and writing to
926 a file in pk_sign program. Found by kevlut in #1142.
927 * Restrict usage of error code MBEDTLS_ERR_SSL_WANT_READ to situations
928 where data needs to be fetched from the underlying transport in order
929 to make progress. Previously, this error code was also occasionally
Simon Butcherb03120a2018-04-30 16:40:25 +0100930 returned when unexpected messages were being discarded, ignoring that
931 further messages could potentially already be pending to be processed
Gilles Peskinef2b76cd2018-04-19 17:41:39 +0200932 in the internal buffers; these cases led to deadlocks when event-driven
933 I/O was used. Found and reported by Hubert Mis in #772.
934 * Fix buffer length assertions in the ssl_parse_certificate_request()
Andrzej Kurek5462e022018-04-20 07:58:53 -0400935 function which leads to a potential one byte overread of the message
936 buffer.
Simon Butchere6a2a1a2018-05-01 13:57:53 +0100937 * Fix invalid buffer sizes passed to zlib during record compression and
938 decompression.
939 * Fix the soversion of libmbedcrypto to match the soversion of the
940 maintained 2.7 branch. The soversion was increased in Mbed TLS
Gilles Peskine08185402018-03-22 21:50:48 +0100941 version 2.7.1 to reflect breaking changes in that release, but the
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100942 increment was missed in 2.8.0 and later releases outside of the 2.7 branch.
943
Simon Butcherb03120a2018-04-30 16:40:25 +0100944Changes
945 * Remove some redundant code in bignum.c. Contributed by Alexey Skalozub.
Gilles Peskine51d93942018-03-23 01:42:44 +0100946 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
947 independently by Matthieu Volat and Arne Schwabe.
948 * Improve testing in configurations that omit certain hashes or
Andres Amaya Garcia768bbaf2018-03-21 15:05:12 +0000949 public-key algorithms. Includes contributions by Gert van Dijk.
950 * Improve negative testing of X.509 parsing.
951 * Do not define global mutexes around readdir() and gmtime() in
Simon Butcherb03120a2018-04-30 16:40:25 +0100952 configurations where the feature is disabled. Found and fixed by Gergely
953 Budai.
954 * Harden the function mbedtls_ssl_config_free() against misuse, so that it
955 doesn't leak memory if the user doesn't use mbedtls_ssl_conf_psk() and
Andres Amaya Garciacb47a792018-03-27 21:19:50 +0100956 instead incorrectly manipulates the configuration structure directly.
957 Found and fix submitted by junyeonLEE in #1220.
958 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
Manuel Pégourié-Gonnardfff308e2018-03-28 11:13:05 +0200959 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
960 without PBES2. Fixed by Marcos Del Sol Vives.
961 * Add the order of the base point as N in the mbedtls_ecp_group structure
Jaeden Amero4ba87fc2018-03-29 11:01:38 +0100962 for Curve25519 (other curves had it already). Contributed by Nicholas
963 Wilson #481
Darryl Greeneea1c4e2018-03-29 16:05:44 +0100964 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
965 Krylov.
Simon Butcherb03120a2018-04-30 16:40:25 +0100966 * Improve the documentation of mbedtls_ssl_write(). Suggested by
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100967 Paul Sokolovsky in #1356.
968 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garciaea5a8a42018-03-25 23:57:09 +0100969 letter must not be prefixed by '-', such as LLVM. Found and fixed by
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100970 Alex Hixon.
Gilles Peskine4e4be7c2018-03-21 16:29:03 +0100971 * Allow configuring the shared library extension by setting the DLEXT
Gilles Peskine092bf3d2018-04-01 12:43:48 +0200972 environment variable when using the project makefiles.
Gilles Peskinea09453f2018-04-04 09:14:12 +0200973 * Optimize unnecessary zeroing in mbedtls_mpi_copy. Based on a contribution
974 by Alexey Skalozub in #405.
975 * In the SSL module, when f_send, f_recv or f_recv_timeout report
Gilles Peskinec96ccf42018-03-31 22:57:03 +0200976 transmitting more than the required length, return an error. Raised by
977 Sam O'Connor in #1245.
978 * Improve robustness of mbedtls_ssl_derive_keys against the use of
Simon Butcherb03120a2018-04-30 16:40:25 +0100979 HMAC functions with non-HMAC ciphersuites. Independently contributed
980 by Jiayuan Chen in #1377. Fixes #1437.
Gilles Peskine81021ca2018-04-19 20:59:06 +0200981 * Improve security of RSA key generation by including criteria from
982 FIPS 186-4. Contributed by Jethro Beekman. #1380
983 * Declare functions in header files even when an alternative implementation
984 of the corresponding module is activated by defining the corresponding
985 MBEDTLS_XXX_ALT macro. This means that alternative implementations do
Andrzej Kurekaca09c72018-04-13 05:18:08 -0400986 not need to copy the declarations, and ensures that they will have the
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100987 same API.
Jaeden Amero8be0e6d2018-03-16 16:25:12 +0000988 * Add platform setup and teardown calls in test suites.
Gilles Peskine27b07542018-02-14 14:07:48 +0100989
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100990= mbed TLS 2.8.0 branch released 2018-03-16
991
992Default behavior changes
993 * The truncated HMAC extension now conforms to RFC 6066. This means
994 that when both sides of a TLS connection negotiate the truncated
995 HMAC extension, Mbed TLS can now interoperate with other
996 compliant implementations, but this breaks interoperability with
997 prior versions of Mbed TLS. To restore the old behavior, enable
998 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
999 config.h. Found by Andreas Walz (ivESK, Offenburg University of
Hanno Becker7dc832b2017-11-16 17:39:34 +00001000 Applied Sciences).
Gilles Peskine04f9bd02018-02-22 15:22:44 +01001001
1002Security
1003 * Fix implementation of the truncated HMAC extension. The previous
1004 implementation allowed an offline 2^80 brute force attack on the
Gilles Peskine553a06f2018-03-13 17:15:34 +01001005 HMAC key of a single, uninterrupted connection (with no
1006 resumption of the session).
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +01001007 * Verify results of RSA private key operations to defend
1008 against Bellcore glitch attack.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +01001009 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
1010 a crash on invalid input.
Manuel Pégourié-Gonnardfd3e4fb2018-03-13 11:53:30 +01001011 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
1012 crash on invalid input.
Hanno Becker7dc832b2017-11-16 17:39:34 +00001013 * Fix CRL parsing to reject CRLs containing unsupported critical
Antonio Quartulli12ccef22017-12-20 07:03:55 +08001014 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
1015
1016Features
Gilles Peskine1d80a672018-02-14 11:33:30 +01001017 * Extend PKCS#8 interface by introducing support for the entire SHA
1018 algorithms family when encrypting private keys using PKCS#5 v2.0.
1019 This allows reading encrypted PEM files produced by software that
Gilles Peskine3dabd6a2018-02-14 17:19:41 +01001020 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
Antonio Quartulli12ccef22017-12-20 07:03:55 +08001021 OpenVPN Inc. Fixes #1339
Hanno Beckercf092b22018-03-06 14:23:38 +00001022 * Add support for public keys encoded in PKCS#1 format. #1122
1023
1024New deprecations
1025 * Deprecate support for record compression (configuration option
Gilles Peskine27b07542018-02-14 14:07:48 +01001026 MBEDTLS_ZLIB_SUPPORT).
1027
1028Bugfix
Gilles Peskine1e3fd692018-02-14 15:12:49 +01001029 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
Ron Eldor099e61d2018-02-06 17:34:27 +02001030 Fixes #1358.
1031 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Gilles Peskine1bf61232018-02-27 08:37:52 +01001032 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
1033 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Jaeden Ameroc5d08f82018-02-21 13:32:39 +00001034 In the context of SSL, this resulted in handshake failure. Reported by
Gilles Peskineb4c571e2018-03-11 00:44:14 +01001035 daniel in the Mbed TLS forum. #1351
1036 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
1037 * Fix setting version TLSv1 as minimal version, even if TLS 1
1038 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
Ron Eldor2f73c932017-09-26 15:06:56 +03001039 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
1040 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldorbc18eb32017-09-06 17:49:10 +03001041 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
Gilles Peskine08af5382018-03-11 00:15:56 +01001042 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
itayzafrir693a1d92018-02-26 12:02:10 +02001043 Nick Wilson on issue #355
Gilles Peskinea31d8202018-03-12 23:45:08 +01001044 * In test_suite_pk, pass valid parameters when testing for hash length
1045 overflow. #1179
Gilles Peskine3ff4a072018-03-12 23:54:20 +01001046 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
Gilles Peskine5f193282018-03-13 17:18:06 +01001047 by Guido Vranken. #639
1048 * Log correct number of ciphersuites used in Client Hello message. #918
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +01001049 * Fix X509 CRT parsing that would potentially accept an invalid tag when
1050 parsing the subject alternative names.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +01001051 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
1052 that could cause a key exchange to fail on valid data.
Gilles Peskine8db3efb2018-02-21 19:16:20 +01001053 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
1054 could cause a key exchange to fail on valid data.
Sanne Woudacf793122017-09-07 16:33:44 +01001055 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
1056 MBEDTLS_DEPRECATED_REMOVED. #1388
Gilles Peskine27b07542018-02-14 14:07:48 +01001057 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
1058 Found through fuzz testing.
1059
1060Changes
Gilles Peskine5daa7652018-02-14 14:10:24 +01001061 * Fix tag lengths and value ranges in the documentation of CCM encryption.
Gilles Peskinedf298682018-02-14 15:49:54 +01001062 Contributed by Mathieu Briand.
Gilles Peskinebb2565c2018-02-21 17:59:40 +01001063 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
1064 * Remove support for the library reference configuration for picocoin.
Gilles Peskine9c4f4032017-05-29 14:46:36 +02001065 * MD functions deprecated in 2.7.0 are no longer inline, to provide
Gilles Peskine6dc4a312018-03-13 00:13:06 +01001066 a migration path for those depending on the library's ABI.
1067 * Clarify the documentation of mbedtls_ssl_setup.
Gilles Peskine27b07542018-02-14 14:07:48 +01001068 * Use (void) when defining functions with no parameters. Contributed by
Simon Butcher55fc4e02018-02-05 01:09:13 +00001069 Joris Aerts. #678
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +01001070
Gilles Peskine28a0c722017-10-17 19:01:38 +02001071= mbed TLS 2.7.0 branch released 2018-02-03
Simon Butcher55fc4e02018-02-05 01:09:13 +00001072
1073Security
1074 * Fix a heap corruption issue in the implementation of the truncated HMAC
1075 extension. When the truncated HMAC extension is enabled and CBC is used,
1076 sending a malicious application packet could be used to selectively corrupt
1077 6 bytes on the peer's heap, which could potentially lead to crash or remote
1078 code execution. The issue could be triggered remotely from either side in
1079 both TLS and DTLS. CVE-2018-0488
1080 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
1081 for the key size, which could potentially lead to crash or remote code
1082 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
1083 Qualcomm Technologies Inc. CVE-2018-0487
1084 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
1085 zeros.
1086 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
Hanno Becker930025d2017-09-18 16:07:19 +01001087 64 KiB to the address of the SSL buffer and causing a wrap around.
1088 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
1089 default enabled) maximum fragment length extension is disabled in the
1090 config and the application data buffer passed to mbedtls_ssl_write
1091 is larger than the internal message buffer (16384 bytes by default), the
1092 latter overflows. The exploitability of this issue depends on whether the
Simon Butcher55fc4e02018-02-05 01:09:13 +00001093 application layer can be forced into sending such large packets. The issue
1094 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
1095 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
1096 Fixes #707.
Andres Amaya Garcia364051f2017-07-05 15:40:17 +01001097 * Add a provision to prevent compiler optimizations breaking the time
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +01001098 constancy of mbedtls_ssl_safer_memcmp().
Ron Eldor31162e42017-09-05 15:34:35 +03001099 * Ensure that buffers are cleared after use if they contain sensitive data.
1100 Changes were introduced in multiple places in the library.
Janos Follathb174c842017-09-20 16:26:04 +01001101 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
1102 being leaked to memory after release.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001103 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
1104 leaking 1 bit of the private key. Reported by prashantkspatil.
1105 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
1106 data. Previously, trailing zero bytes were detected and omitted for the
Hanno Becker509fef72017-10-19 10:10:18 +01001107 sake of saving memory, but potentially leading to slight timing
1108 differences. Reported by Marco Macchetti, Kudelski Group.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001109 * Wipe stack buffer temporarily holding EC private exponent
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +01001110 after keypair generation.
1111 * Fix a potential heap buffer over-read in ALPN extension parsing
Hanno Becker0cd5b942017-10-13 17:17:28 +01001112 (server-side). Could result in application crash, but only if an ALPN
1113 name larger than 16 bytes had been configured on the server.
1114 * Change default choice of DHE parameters from untrustworthy RFC 5114
Gilles Peskine28a0c722017-10-17 19:01:38 +02001115 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
Gilles Peskineb04e2c32017-09-29 15:45:12 +02001116 manner.
1117
Gilles Peskinec82fbb42017-12-15 15:01:27 +01001118Features
1119 * Allow comments in test data files.
Gilles Peskine8873bcc2017-10-27 18:42:32 +02001120 * The selftest program can execute a subset of the tests based on command
1121 line arguments.
Gilles Peskine618d0912018-01-02 16:04:19 +01001122 * New unit tests for timing. Improve the self-test to be more robust
Jaeden Amero91d49e82018-01-11 16:35:44 +00001123 when run on a heavily-loaded machine.
Jaeden Amero15263302017-09-21 12:53:48 +01001124 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Gilles Peskine8e09d8f2018-01-02 16:09:42 +01001125 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Ron Eldor314adb62017-10-10 18:28:25 +03001126 * Add support for alternative implementations of GCM, selected by the
1127 configuration flag MBEDTLS_GCM_ALT.
1128 * Add support for alternative implementations for ECDSA, controlled by new
Ron Eldor2981a0a2017-09-24 15:41:09 +03001129 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
Ron Eldor314adb62017-10-10 18:28:25 +03001130 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +03001131 The following functions from the ECDSA module can be replaced
Hanno Becker087d5ad2018-01-24 16:06:25 +00001132 with alternative implementation:
1133 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Ron Eldora84c1cb2017-10-10 19:04:27 +03001134 * Add support for alternative implementation of ECDH, controlled by the
Ron Eldor8b766212017-09-24 15:44:56 +03001135 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
1136 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
1137 The following functions from the ECDH module can be replaced
Hanno Becker087d5ad2018-01-24 16:06:25 +00001138 with an alternative implementation:
1139 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Simon Butcher55fc4e02018-02-05 01:09:13 +00001140 * Add support for alternative implementation of ECJPAKE, controlled by
Gilles Peskine26182ed2017-09-29 15:45:12 +02001141 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Hanno Beckera47023e2017-12-22 17:08:03 +00001142 * Add mechanism to provide alternative implementation of the DHM module.
1143
1144API Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +00001145 * Extend RSA interface by multiple functions allowing structure-
Hanno Beckera47023e2017-12-22 17:08:03 +00001146 independent setup and export of RSA contexts. Most notably,
1147 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
1148 up RSA contexts from partial key material and having them completed to the
1149 needs of the implementation automatically. This allows to setup private RSA
1150 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
1151 purpose or CRT and/or blinding.
Gilles Peskine0a969102018-01-22 14:55:20 +01001152 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
1153 implementations of the RSA interface declared in rsa.h.
1154 * The following functions in the message digest modules (MD2, MD4, MD5,
1155 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
1156 The new functions change the return type from void to int to allow
1157 returning error codes when using MBEDTLS_<MODULE>_ALT.
1158 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +01001159 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
Gilles Peskineb04e2c32017-09-29 15:45:12 +02001160 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Ron Eldor73a38172017-10-03 15:58:26 +03001161 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
1162
Simon Butcher55fc4e02018-02-05 01:09:13 +00001163New deprecations
Andres Amaya Garciaf569f702017-06-28 09:25:10 +01001164 * Deprecate usage of RSA primitives with non-matching key-type
1165 (e.g. signing with a public key).
Jaeden Amero005239e2018-01-25 14:47:39 +00001166 * Direct manipulation of structure fields of RSA contexts is deprecated.
1167 Users are advised to use the extended RSA API instead.
1168 * Deprecate usage of message digest functions that return void
1169 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
1170 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
Hanno Becker0cd5b942017-10-13 17:17:28 +01001171 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
1172 that can return an error code.
1173 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
1174 parameters from RFC 3526 or the newly added parameters from RFC 7919.
1175 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001176 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
1177 etc.
Hanno Becker0cd5b942017-10-13 17:17:28 +01001178 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +01001179 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +01001180 accepting DHM parameters in binary form, matching the new constants.
1181
1182Bugfix
Simon Butcher2c4f9462017-09-30 23:39:46 +01001183 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
Simon Butcherb03120a2018-04-30 16:40:25 +01001184 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher16373a52017-10-02 19:12:54 +01001185 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
Ron Eldor73a38172017-10-03 15:58:26 +03001186 Found by projectgus and Jethro Beekman, #836.
1187 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
1188 * Parse signature algorithm extension when renegotiating. Previously,
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +00001189 renegotiated handshakes would only accept signatures using SHA-1
1190 regardless of the peer's preferences, or fail if SHA-1 was disabled.
1191 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
Gilles Peskine91048a32017-10-19 17:46:14 +02001192 dates on leap years with 100 and 400 intervals are handled correctly. Found
1193 by Nicholas Wilson. #694
Gilles Peskinee7707222017-11-24 15:35:50 +01001194 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
1195 accepted. Generating these signatures required the private key.
1196 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +01001197 Found independently by Florian in the mbed TLS forum and by Mishamax.
1198 #878, #1019.
Andres AG51a7ae12017-02-22 16:23:26 +00001199 * Fix variable used before assignment compilation warnings with IAR
1200 toolchain. Found by gkerrien38.
1201 * Fix unchecked return codes from AES, DES and 3DES functions in
1202 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
1203 If a call to one of the functions of the cryptographic primitive modules
1204 failed, the error may not be noticed by the function
Gilles Peskine4b117d92017-11-28 17:23:37 +01001205 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
1206 Guido Vranken. #756
Hanno Becker041a6b02017-09-28 14:52:26 +01001207 * Include configuration file in md.h, to fix compilation warnings.
1208 Reported by aaronmdjones in #1001
1209 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
Hanno Becker86e52302017-10-05 09:08:53 +01001210 writing routines that prevented these functions to work with alternative
1211 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Gilles Peskined742b742017-11-28 17:40:56 +01001212 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
Simon Butcher55fc4e02018-02-05 01:09:13 +00001213 non-v3 CRT's.
Hanno Beckera6ed9c52017-05-04 13:39:22 +01001214 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +00001215 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Becker479e8e22017-10-12 15:39:45 +01001216 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001217 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Darryl Green36ba8b62017-11-21 09:55:33 +00001218 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Gilles Peskineff01e002017-12-01 23:42:17 +01001219 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Gilles Peskined6294112017-12-01 23:46:58 +01001220 Reported by Yolan Romailler.
Hanno Becker81e96dd2017-09-18 11:07:25 +01001221 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
1222 * Fix incorrect unit in benchmark output. #850
Ron Eldore1a9a4a2017-10-17 18:15:41 +03001223 * Add size-checks for record and handshake message content, securing
1224 fragile yet non-exploitable code-paths.
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +01001225 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
Simon Butcher55fc4e02018-02-05 01:09:13 +00001226 MilenkoMitrovic, #1104
Gilles Peskineec9c6262018-01-02 16:27:50 +01001227 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
1228 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Hanno Becker997e2182018-01-10 10:39:20 +00001229 * Fix possible memory leaks in mbedtls_gcm_self_test().
1230 * Added missing return code checks in mbedtls_aes_self_test().
1231 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
1232 RSA test suite where the failure of CTR DRBG initialization lead to
Gilles Peskine980d2032018-01-22 23:10:53 +01001233 freeing an RSA context and several MPI's without proper initialization
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +01001234 beforehand.
1235 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001236 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
1237 Found and fixed by Martijn de Milliano.
1238 * Fix an issue in the cipher decryption with the mode
1239 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
Gilles Peskined91f2a22018-01-19 11:25:10 +01001240 Note, this padding mode is not used by the TLS protocol. Found and fixed by
1241 Micha Kraus.
1242 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
1243 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
Gilles Peskine0a969102018-01-22 14:55:20 +01001244 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
1245 mbedtls_sha512_init() is called before operating on the relevant context
1246 structure. Do not assume that zeroizing a context is a correct way to
Simon Butcher55fc4e02018-02-05 01:09:13 +00001247 reset it. Found independently by ccli8 on Github.
1248 * In mbedtls_entropy_free(), properly free the message digest context.
Hanno Becker86e52302017-10-05 09:08:53 +01001249 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
1250 and fixed by muddog.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001251
Hanno Becker86e52302017-10-05 09:08:53 +01001252Changes
1253 * Extend cert_write example program by options to set the certificate version
Hanno Becker32297e82017-12-22 10:24:32 +00001254 and the message digest. Further, allow enabling/disabling of authority
1255 identifier, subject identifier and basic constraints extensions.
1256 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
1257 particular, don't require P,Q if neither CRT nor blinding are
Gilles Peskineec9c6262018-01-02 16:27:50 +01001258 used. Reported and fix proposed independently by satur9nine and sliai
Gilles Peskine50984002018-01-17 08:01:37 +01001259 on GitHub.
1260 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine0a969102018-01-22 14:55:20 +01001261 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
1262 undeclared dependency of the RSA module on the ASN.1 module.
1263 * Update all internal usage of deprecated message digest functions to the
1264 new ones with return codes. In particular, this modifies the
Jaeden Amero791e08a2018-01-26 12:04:12 +00001265 mbedtls_md_info_t structure. Propagate errors from these functions
Gilles Peskine7ecab3d2018-01-26 17:56:38 +01001266 everywhere except some locations in the ssl_tls.c module.
1267 * Improve CTR_DRBG error handling by propagating underlying AES errors.
1268 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
Hanno Becker2a037942017-10-06 12:29:50 +01001269 modules where the software implementation can be replaced by a hardware
1270 implementation.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +01001271 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
Simon Butcher72ea31b2017-08-10 11:51:16 +01001272 throughout the library.
Ron Eldord5a75f42016-12-16 16:15:56 +02001273
Simon Butcherb060cc22017-07-28 01:04:34 +01001274= mbed TLS 2.6.0 branch released 2017-08-10
Simon Butcher01971d02017-08-10 10:48:01 +01001275
Simon Butcherf85c90a2017-07-27 15:11:52 +01001276Security
1277 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcher01971d02017-08-10 10:48:01 +01001278 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
1279 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher3f2557e2017-08-01 18:06:12 +01001280 (default: 8) intermediates, even when it was not trusted. This could be
1281 triggered remotely from either side. (With authmode set to 'required'
Hanno Becker7ec83df2017-06-27 08:26:53 +01001282 (the default), the handshake was correctly aborted).
1283 * Reliably wipe sensitive data after use in the AES example applications
Simon Butcherf85c90a2017-07-27 15:11:52 +01001284 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
Andres Amaya Garcia2187e032017-07-07 13:19:13 +01001285 Found by Laurent Simon.
1286
Andres Amaya Garcia24f36412017-07-12 11:27:05 +01001287Features
1288 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia5478bc72017-07-18 10:24:26 +01001289 and the context struct mbedtls_platform_context to perform
Simon Butcher3f2557e2017-08-01 18:06:12 +01001290 platform-specific setup and teardown operations. The macro
Simon Butcher01971d02017-08-10 10:48:01 +01001291 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
1292 by the user in a platform_alt.h file. These new functions are required in
Andres Amaya Garcia2187e032017-07-07 13:19:13 +01001293 some embedded environments to provide a means of initialising underlying
Simon Butcherab670432017-07-20 12:33:41 +02001294 cryptographic acceleration hardware.
1295
1296API Changes
1297 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
Simon Butcher3f2557e2017-08-01 18:06:12 +01001298 API consistent with mbed TLS 2.5.0. Specifically removed the inline
1299 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcherf85c90a2017-07-27 15:11:52 +01001300 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
1301 by James Cowgill. #978
1302 * Certificate verification functions now set flags to -1 in case the full
Simon Butcher01971d02017-08-10 10:48:01 +01001303 chain was not verified due to an internal error (including in the verify
Simon Butcherf85c90a2017-07-27 15:11:52 +01001304 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +01001305 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherab670432017-07-20 12:33:41 +02001306 verification of the peer's certificate failed due to an overlong chain or
Ron Eldore2efaea2016-12-16 16:15:56 +02001307 a fatal error in the verify callback.
Simon Butcher01971d02017-08-10 10:48:01 +01001308
1309Bugfix
1310 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
Ron Eldor63140682017-01-09 19:27:59 +02001311 Reported by roberto. #716
Simon Butcher3f2557e2017-08-01 18:06:12 +01001312 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Simon Butcher01971d02017-08-10 10:48:01 +01001313 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
1314 always be implemented by pthread support. #696
Ron Eldorca6ff582017-01-12 14:50:50 +02001315 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
Simon Butcher3f2557e2017-08-01 18:06:12 +01001316 in the case of an error. Found by redplait. #590
Andres Amaya Garciab820bf82017-05-04 11:05:55 +01001317 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
1318 Reported and fix suggested by guidovranken. #740
Simon Butcher5deb5182017-07-26 17:25:55 +01001319 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
Simon Butcher3f2557e2017-08-01 18:06:12 +01001320 compilation when using ARM Compiler 6.
Simon Butcher5deb5182017-07-26 17:25:55 +01001321 * Fix a potential integer overflow in the version verification for DER
1322 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Andres AG2e65a542017-02-17 13:54:43 +00001323 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
Simon Butcher3f2557e2017-08-01 18:06:12 +01001324 KNOX Security, Samsung Research America
Andres AG2e65a542017-02-17 13:54:43 +00001325 * Fix potential integer overflow in the version verification for DER
1326 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Simon Butcher5deb5182017-07-26 17:25:55 +01001327 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
Simon Butcher3f2557e2017-08-01 18:06:12 +01001328 KNOX Security, Samsung Research America
Simon Butcher5deb5182017-07-26 17:25:55 +01001329 * Fix a potential integer overflow in the version verification for DER
Simon Butchera418e822017-07-28 23:52:10 +01001330 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher3f2557e2017-08-01 18:06:12 +01001331 constructed certificates to bypass the certificate verification check.
1332 * Fix a call to the libc function time() to call the platform abstraction
1333 function mbedtls_time() instead. Found by wairua. #666
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +02001334 * Avoid shadowing of time and index functions through mbed TLS function
Janos Follath78b14732017-06-22 10:02:07 +01001335 arguments. Found by inestlerode. #557.
Janos Follathb85291c2017-06-22 10:02:07 +01001336
Simon Butcher3f2557e2017-08-01 18:06:12 +01001337Changes
1338 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Janos Follath78b14732017-06-22 10:02:07 +01001339 64-bit division. This is useful on embedded platforms where 64-bit division
1340 created a dependency on external libraries. #708
1341 * Removed mutexes from ECP hardware accelerator code. Now all hardware
Andres Amaya Garciad0e15d72017-06-26 12:57:44 +01001342 accelerator code in the library leaves concurrency handling to the
1343 platform. Reported by Steven Cooreman. #863
Simon Butcher3f2557e2017-08-01 18:06:12 +01001344 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
1345 config-no-entropy.h to reduce the RAM footprint.
Hanno Becker85b602e2017-05-04 11:27:39 +01001346 * Added a test script that can be hooked into git that verifies commits
Janos Follath78b14732017-06-22 10:02:07 +01001347 before they are pushed.
Simon Butcherf2a597f2017-06-20 23:08:10 +01001348 * Improve documentation of PKCS1 decryption functions.
Hanno Beckereccf60c2017-06-05 15:19:01 +01001349
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001350= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckerbf4c2e32017-06-09 11:28:45 +01001351
1352Security
1353 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
1354 The issue could only happen client-side with renegotiation enabled.
1355 Could result in DoS (application crash) or information leak
Gilles Peskine5d2511c2017-05-12 13:16:40 +02001356 (if the application layer sent data read from mbedtls_ssl_read()
1357 back to the server or to a third party). Can be triggered remotely.
1358 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
Gilles Peskined50177f2017-05-16 17:53:03 +02001359 certificate verification. SHA-1 can be turned back on with a compile-time
1360 option if needed.
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +02001361 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
1362 detect it sometimes. Reported by Hugo Leisink. #810
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001363 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
Hanno Beckereccf60c2017-06-05 15:19:01 +01001364 potential Bleichenbacher/BERserk-style attack.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001365
1366Bugfix
1367 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
Hanno Becker7e5437a2017-04-28 17:15:26 +01001368 valid C and they prevented the test from compiling in Visual Studio 2015
1369 and with GCC using the -Wpedantic compilation option.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001370 * Fix insufficient support for signature-hash-algorithm extension,
1371 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Gilles Peskine3df98f52017-05-10 17:47:40 +02001372 * Fix behaviour that hid the original cause of fatal alerts in some cases
Janos Follath5a1c0e72017-06-16 09:00:07 +01001373 when sending the alert failed. The fix makes sure not to hide the error
1374 that triggered the alert.
1375 * Fix SSLv3 renegotiation behaviour and stop processing data received from
1376 peer after sending a fatal alert to refuse a renegotiation attempt.
Hanno Becker39ae8cd2017-05-08 16:31:14 +01001377 Previous behaviour was to keep processing data even after the alert has
Simon Butcherb03120a2018-04-30 16:40:25 +01001378 been sent.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001379 * Accept empty trusted CA chain in authentication mode
1380 MBEDTLS_SSL_VERIFY_OPTIONAL. Found by Jethro Beekman. #864
1381 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
1382 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
1383 reflect bad EC curves within verification result.
1384 * Fix bug that caused the modular inversion function to accept the invalid
1385 modulus 1 and therefore to hang. Found by blaufish. #641.
1386 * Fix incorrect sign computation in modular exponentiation when the base is
1387 a negative MPI. Previously the result was always negative. Found by Guido
1388 Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +02001389 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
Gilles Peskine36091fe2017-05-03 16:55:03 +02001390 that was triggered uppon reading an empty line. Found by Guido Vranken.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001391
1392Changes
Janos Follath0a5154b2017-03-10 11:31:41 +00001393 * Send fatal alerts in more cases. The previous behaviour was to skip
Janos Follath5a1c0e72017-06-16 09:00:07 +01001394 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +00001395 * Clarify ECDSA documentation and improve the sample code to avoid
Gilles Peskine36091fe2017-05-03 16:55:03 +02001396 misunderstanding and potentially dangerous use of the API. Pointed out
Simon Butcher9f770172017-05-15 15:13:59 +01001397 by Jean-Philippe Aumasson.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001398
Janos Follath45182a02017-03-23 10:41:56 +00001399= mbed TLS 2.5.0 branch released 2017-05-17
Gilles Peskine4a7f6a02017-03-23 14:37:37 +01001400
Janos Follath5a1c0e72017-06-16 09:00:07 +01001401Security
1402 * Wipe stack buffers in RSA private key operations
Janos Follath45182a02017-03-23 10:41:56 +00001403 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
1404 Simon.
1405 * Add exponent blinding to RSA private operations as a countermeasure
1406 against side-channel attacks like the cache attack described in
1407 https://arxiv.org/abs/1702.08719v2.
1408 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
Simon Butcher4775e832017-05-13 22:56:08 +01001409 Clémentine Maurice and Stefan Mangard.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001410
1411Features
1412 * Add hardware acceleration support for the Elliptic Curve Point module.
1413 This involved exposing parts of the internal interface to enable
Janos Follath7a8a0902017-04-10 16:13:06 +01001414 replacing the core functions and adding and alternative, module level
1415 replacement support for enabling the extension of the interface.
1416 * Add a new configuration option to 'mbedtls_ssl_config' to enable
1417 suppressing the CA list in Certificate Request messages. The default
Andres AGf5bf7182017-03-03 14:09:56 +00001418 behaviour has not changed, namely every configured CAs name is included.
1419
1420API Changes
1421 * The following functions in the AES module have been deprecated and replaced
1422 by the functions shown below. The new functions change the return type from
1423 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
1424 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
1425 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001426 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
1427
1428Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +01001429 * Remove macros from compat-1.3.h that correspond to deleted items from most
1430 recent versions of the library. Found by Kyle Keen.
1431 * Fixed issue in the Threading module that prevented mutexes from
1432 initialising. Found by sznaider. #667 #843
1433 * Add checks in the PK module for the RSA functions on 64-bit systems.
1434 The PK and RSA modules use different types for passing hash length and
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001435 without these checks the type cast could lead to data loss. Found by Guido
Simon Butcherb65c2be2017-03-10 18:50:44 +00001436 Vranken.
Andres AG703990b2016-10-24 11:23:36 +01001437
Janos Follath182013f2016-10-25 10:50:22 +01001438= mbed TLS 2.4.2 branch released 2017-03-08
Simon Butcherb65c2be2017-03-10 18:50:44 +00001439
1440Security
1441 * Add checks to prevent signature forgeries for very large messages while
1442 using RSA through the PK module in 64-bit systems. The issue was caused by
1443 some data loss when casting a size_t to an unsigned int value in the
Andres AG939954c2016-12-08 17:08:44 +00001444 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
1445 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
1446 * Fixed potential livelock during the parsing of a CRL in PEM format in
1447 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
1448 characters after the footer could result in the execution of an infinite
Janos Follath182013f2016-10-25 10:50:22 +01001449 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
1450 Microsoft.
Simon Butcher0621b1f2017-02-05 16:48:47 +00001451 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
Janos Follath7dadc2f2017-01-27 16:05:20 +00001452 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
1453 Introduced by interoperability fix for #513.
1454 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
Simon Butcher71e9d582017-02-28 18:47:27 +00001455 when verifying the validity of a key on secp224k1. This could be
Simon Butcher8b987502017-03-07 12:37:14 +00001456 triggered remotely for example with a maliciously constructed certificate
1457 and potentially could lead to remote code execution on some platforms.
Janos Follath7dadc2f2017-01-27 16:05:20 +00001458 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
Andres AG703990b2016-10-24 11:23:36 +01001459 team. #569 CVE-2017-2784
Andres AGd1650662016-12-09 17:26:23 +00001460
1461Bugfix
1462 * Fix output certificate verification flags set by x509_crt_verify_top() when
1463 traversing a chain of trusted CA. The issue would cause both flags,
1464 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
Simon Butcherd57c8f02017-02-02 13:08:37 +00001465 set when the verification conditions are not met regardless of the cause.
1466 Found by Harm Verhagen and inestlerode. #665 #561
1467 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
Andres AGc0db5112016-12-07 15:05:53 +00001468 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
1469 Found by omlib-lin. #673
Simon Butchera333b3c2017-02-02 16:17:37 +00001470 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
Andres AG2196c7f2016-12-15 17:01:16 +00001471 x509_csr.c that are reported when building mbed TLS with a config.h that
1472 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
1473 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
1474 would compare 64 bits of the record counter instead of 48 bits as indicated
1475 in RFC 6347 Section 4.3.1. This could cause the execution of the
Andres AG703990b2016-10-24 11:23:36 +01001476 renegotiation routines at unexpected times when the protocol is DTLS. Found
Andres AG9c94b692016-10-24 14:31:54 +01001477 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +01001478 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres Amaya Garcia6a543362017-01-17 23:04:22 +00001479 the input string in PEM format to extract the different components. Found
1480 by Eyal Itkin.
1481 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
1482 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1483 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
1484 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +00001485 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
1486 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +00001487 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
1488 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG5708dcb2016-12-08 17:19:21 +00001489 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
1490 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Simon Butcherd02dc142017-02-28 16:36:22 +00001491 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
1492 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcher956c58f2017-03-02 09:18:09 +00001493 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
1494 fix proposed by Guido Vranken. #722
1495 * Fixed the templates used to generate project and solution files for Visual
Ron Eldor12e0b802017-01-29 18:51:35 +02001496 Studio 2015 as well as the files themselves, to remove a build warning
1497 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Andres AGd1cc7f62017-01-06 13:17:35 +00001498 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
1499 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
1500 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
Simon Butcher81cf88f2017-03-07 19:35:49 +00001501 number to write in hexadecimal is negative and requires an odd number of
1502 digits. Found and fixed by Guido Vranken.
Andres AG703990b2016-10-24 11:23:36 +01001503 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
Janos Follath4c006cd2016-12-13 14:14:03 +00001504 by inestlerode. #555
Janos Follath5da3a6f2016-12-13 11:51:04 +00001505
1506= mbed TLS 2.4.1 branch released 2016-12-13
1507
1508Changes
1509 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
1510 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
Simon Butcher19dbd412016-10-16 19:35:49 +01001511 Authentication – October 2016
Simon Butchercf8c1f42016-09-02 21:29:39 +03001512
Andres AG60dbc932016-09-02 15:23:48 +01001513= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butcheref8fa012016-10-16 00:44:08 +01001514
1515Security
1516 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
1517 with RFC-5116 and could lead to session key recovery in very long TLS
1518 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
1519 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
Andres AG60dbc932016-09-02 15:23:48 +01001520 https://eprint.iacr.org/2016/475.pdf
Andres AGe0af9952016-09-07 11:09:44 +01001521 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Simon Butcheref8fa012016-10-16 00:44:08 +01001522 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AG60dbc932016-09-02 15:23:48 +01001523 without checking whether there is enough space in the destination. The
Simon Butchercf8c1f42016-09-02 21:29:39 +03001524 issue cannot be triggered remotely. Found by Jethro Beekman.
Simon Butcher21c54812016-10-05 14:17:37 +01001525
1526Features
Simon Butchercf8c1f42016-09-02 21:29:39 +03001527 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
1528 NIST SP 800-38B, RFC-4493 and RFC-4615.
1529 * Added hardware entropy selftest to verify that the hardware entropy source
1530 is functioning correctly.
Andres AGf9113192016-09-02 14:06:04 +01001531 * Added a script to print build environment info for diagnostic use in test
1532 scripts, which is also now called by all.sh.
1533 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
Simon Butcheref8fa012016-10-16 00:44:08 +01001534 configure the maximum length of a file path that can be buffered when
Andres AGf84f8922016-09-19 15:33:30 +01001535 calling mbedtls_x509_crt_parse_path().
Andres AG7abc9742016-09-23 17:58:49 +01001536 * Added a configuration file config-no-entropy.h that configures the subset of
1537 library features that do not require an entropy source.
1538 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
Simon Butchercf8c1f42016-09-02 21:29:39 +03001539 to configure the minimum number of bytes for entropy sources using the
1540 mbedtls_hardware_poll() function.
1541
1542Bugfix
1543 * Fix for platform time abstraction to avoid dependency issues where a build
1544 may need time but not the standard C library abstraction, and added
Simon Butcheref8fa012016-10-16 00:44:08 +01001545 configuration consistency checks to check_config.h
1546 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butchercad6e932016-09-05 01:46:59 +03001547 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
1548 when GCM is used. Found by udf2457. #441
Simon Butcherc0d76b82016-09-07 17:25:16 +03001549 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
1550 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcheref8fa012016-10-16 00:44:08 +01001551 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
Simon Butcherd43fb952016-09-26 20:48:56 +01001552 a contribution from Tobias Tangemann. #541
Andres AG776a6fc2016-09-26 09:52:41 +01001553 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcher3a5e0702016-10-12 16:37:59 +01001554 certificates are provided.
Simon Butcher851ae292016-10-11 10:13:52 +01001555 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcheref8fa012016-10-16 00:44:08 +01001556 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcherf77309c2016-10-07 15:56:07 +01001557 * Fixed pthread implementation to avoid unintended double initialisations
1558 and double frees. Found by Niklas Amnebratt.
1559 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
Andres AG4bdbe092016-09-19 16:58:45 +01001560 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
1561 by inestlerode. #559.
Simon Butcherb81496b2016-10-13 14:03:37 +01001562 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
Andres AG821da842016-09-26 10:09:30 +01001563 data structure until after error checks are successful. Found by
Simon Butcherf6e3b9e2016-10-12 19:47:29 +01001564 subramanyam-c. #622
Simon Butcher4d69ecd2016-10-13 00:14:37 +01001565 * Fix documentation and implementation missmatch for function arguments of
Andres AG5a87c932016-09-26 14:53:05 +01001566 mbedtls_gcm_finish(). Found by cmiatpaar. #602
1567 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG4b76aec2016-09-23 13:16:02 +01001568 * Fix potential byte overread when verifying malformed SERVER_HELLO in
Simon Butcher2bd0fba2016-10-13 16:29:56 +01001569 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Simon Butcher99000142016-10-13 17:21:01 +01001570 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
1571 Found by subramanyam-c. #626
1572 * Fix compatibility issue with Internet Explorer client authentication,
Janos Follath240f1852016-10-14 15:23:21 +01001573 where the limited hash choices prevented the client from sending its
Simon Butchercf8c1f42016-09-02 21:29:39 +03001574 certificate. Found by teumas. #513
1575 * Fix compilation without MBEDTLS_SELF_TEST enabled.
1576
1577Changes
1578 * Extended test coverage of special cases, and added new timing test suite.
1579 * Removed self-tests from the basic-built-test.sh script, and added all
1580 missing self-tests to the test suites, to ensure self-tests are only
1581 executed once.
1582 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
Simon Butcher5908bcc2016-09-04 15:12:09 +01001583 * Added support for a Yotta specific configuration file -
Simon Butcheref8fa012016-10-16 00:44:08 +01001584 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Andres AG788aa4a2016-09-14 14:32:09 +01001585 * Added optimization for code space for X.509/OID based on configured
1586 features. Contributed by Aviv Palivoda.
1587 * Renamed source file library/net.c to library/net_sockets.c to avoid
1588 naming collision in projects which also have files with the common name
Simon Butcher59bffa22016-10-13 15:55:56 +01001589 net.c. For consistency, the corresponding header file, net.h, is marked as
1590 deprecated, and its contents moved to net_sockets.h.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001591 * Changed the strategy for X.509 certificate parsing and validation, to no
Simon Butcher46125fb2016-06-27 19:43:55 +01001592 longer disregard certificates with unrecognised fields.
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001593
Janos Follathcc4eba72016-02-10 16:25:55 +00001594= mbed TLS 2.3.0 branch released 2016-06-28
Janos Follathe43b81a2016-02-10 16:25:55 +00001595
Janos Follath3218b212016-02-10 16:14:10 +00001596Security
Janos Follathe43b81a2016-02-10 16:25:55 +00001597 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
1598 required by PKCS1 v2.2
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +01001599 * Fix potential integer overflow to buffer overflow in
Hanno Becker01a0e072017-07-26 11:49:40 +01001600 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Janos Follathbc247c92016-02-11 11:15:44 +00001601 (not triggerable remotely in (D)TLS).
1602 * Fix a potential integer underflow to buffer overread in
Janos Follathcc4eba72016-02-10 16:25:55 +00001603 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
Simon Butcher3fe6cd32016-04-26 19:51:29 +01001604 SSL/TLS.
1605
1606Features
1607 * Support for platform abstraction of the standard C library time()
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001608 function.
1609
1610Bugfix
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001611 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +00001612 arguments where the same (in-place doubling). Found and fixed by Janos
1613 Follath. #309
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001614 * Fix potential build failures related to the 'apidoc' target, introduced
Antonin Décimo36e89b52019-01-23 15:24:37 +01001615 in the previous patch release. Found by Robert Scheck. #390 #391
Janos Follath4ae5c292016-02-10 11:27:43 +00001616 * Fix issue in Makefile that prevented building using armar. #386
Simon Butcherf59e66b2016-03-01 20:26:16 +00001617 * Fix memory leak that occurred only when ECJPAKE was enabled and ECDHE and
1618 ECDSA was disabled in config.h . The leak didn't occur by default.
1619 * Fix an issue that caused valid certificates to be rejected whenever an
Hanno Becker01a0e072017-07-26 11:49:40 +01001620 expired or not yet valid certificate was parsed before a valid certificate
Janos Follathcc0e49d2016-02-17 14:34:12 +00001621 in the trusted certificate list.
Simon Butcher3f5c8752016-04-15 19:06:59 +01001622 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follath1ed9f992016-03-18 11:45:44 +00001623 buffer after DER certificates to be included in the raw representation.
1624 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath8a317052016-04-21 23:37:09 +01001625 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
1626 dereference possible.
Simon Butcherf8935072016-04-29 00:05:32 +01001627 * Fix issue that caused a crash if invalid curves were passed to
Paul Bakker8f0e4c22016-05-12 16:38:27 +01001628 mbedtls_ssl_conf_curves. #373
Paul Bakkerf8e37942016-05-13 10:50:41 +01001629 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Simon Butcher46125fb2016-06-27 19:43:55 +01001630 * Fix memory leaks in test framework
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001631 * Fix test in ssl-opt.sh that does not run properly with valgrind
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +01001632 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
1633
1634Changes
1635 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
Simon Butcherd7e9ad72016-04-25 16:07:12 +01001636 don't use the optimized assembly for bignum multiplication. This removes
Simon Butchera543d112016-04-26 12:51:37 +01001637 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
1638 * Disabled SSLv3 in the default configuration.
Janos Follathc6dab2b2016-05-23 14:27:02 +01001639 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
1640 Skalozub).
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +01001641 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
1642 ignored, as required by RFC6101.
1643
1644= mbed TLS 2.2.1 released 2016-01-05
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +01001645
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +01001646Security
Simon Butcher00923c12015-12-22 19:04:24 +00001647 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +01001648 allocate memory. Only used for certificate generation, not triggerable
1649 remotely in SSL/TLS. Found by Rafał Przywara. #367
1650 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001651 SLOTH attack on TLS 1.2 server authentication (other attacks from the
Simon Butcher1285ab52016-01-01 21:42:47 +00001652 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001653 https://www.mitls.org/pages/attacks/SLOTH
1654
1655Bugfix
1656 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
1657 * Fix bug in certificate validation that caused valid chains to be rejected
Simon Butcher207990d2015-12-16 01:51:30 +00001658 when the first intermediate certificate has pathLenConstraint=0. Found by
Simon Butcher8254ed22015-11-04 11:04:00 +00001659 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher04799a42015-09-29 00:31:09 +01001660 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001661 JayaraghavendranK. #372
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +02001662 * Fix suboptimal handling of unexpected records that caused interop issues
1663 with some peers over unreliable links. Avoid dropping an entire DTLS
1664 datagram if a single record in a datagram is unexpected, instead only
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +02001665 drop the record and look at subsequent records (if any are present) in
1666 the same datagram. Found by jeannotlapin. #345
Simon Butcher59a8fa72015-11-03 23:09:28 +00001667
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +02001668= mbed TLS 2.2.0 released 2015-11-04
1669
1670Security
Simon Butcher59a8fa72015-11-03 23:09:28 +00001671 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001672 once and some allocation fails. Cannot be forced remotely. Found by Guido
1673 Vranken, Intelworks.
1674 * Fix potential heap corruption on Windows when
1675 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +02001676 triggered remotely. Found by Guido Vranken, Intelworks.
1677 * Fix potential buffer overflow in some asn1_write_xxx() functions.
1678 Cannot be triggered remotely unless you create X.509 certificates based
1679 on untrusted input or write keys of untrusted origin. Found by Guido
1680 Vranken, Intelworks.
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001681 * The X509 max_pathlen constraint was not enforced on intermediate
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001682 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001683 Janos Follath. #280 and #319
1684
1685Features
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001686 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
1687 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +02001688 * Added a key extraction callback to accees the master secret and key
1689 block. (Potential uses include EAP-TLS and Thread.)
Simon Butcher62aab152015-10-27 16:05:34 +00001690
1691Bugfix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001692 * Self-signed certificates were not excluded from pathlen counting,
1693 resulting in some valid X.509 being incorrectly rejected. Found and fix
1694 provided by Janos Follath. #319
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001695 * Fix build error with configurations where ECDHE-PSK is the only key
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +02001696 exchange. Found and fix provided by Chris Hammond. #270
1697 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +02001698 ECHD-ECDSA if the only key exchange. Multiple reports. #310
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +09001699 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
1700 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
1701 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001702 size/curve against the profile. Before that, there was no way to set a
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +01001703 minimum key size for end-entity certificates with RSA keys. Found by
1704 Matthew Page of Scannex Electronics Ltd.
1705 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001706 Found by Kurt Danielson. #292
1707 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
1708 * Fix bug in ASN.1 encoding of booleans that caused generated CA
Simon Butcher04799a42015-09-29 00:31:09 +01001709 certificates to be rejected by some applications, including OS X
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +01001710 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcherc48b66b2015-10-05 10:18:17 +01001711
1712Changes
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001713 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
1714 or -1.
Simon Butcherc48b66b2015-10-05 10:18:17 +01001715
1716= mbed TLS 2.1.2 released 2015-10-06
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +02001717
1718Security
Simon Butcherc48b66b2015-10-05 10:18:17 +01001719 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +02001720 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +01001721 Intelworks.
1722 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
1723 once in the same handhake and mbedtls_ssl_conf_psk() was used.
1724 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
Simon Butchera45aa132015-10-05 00:26:36 +01001725 remotely.
Simon Butcherc48b66b2015-10-05 10:18:17 +01001726 * Fix stack buffer overflow in pkcs12 decryption (used by
1727 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
1728 Found by Guido Vranken, Intelworks. Not triggerable remotely.
1729 * Fix potential buffer overflow in mbedtls_mpi_read_string().
1730 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
1731 of TLS, but might be in other uses. On 32 bit machines, requires reading a
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +02001732 string of close to or larger than 1GB to exploit; on 64 bit machines, would
Simon Butcherfec73a82015-10-05 10:40:31 +01001733 require reading a string of close to or larger than 2^62 bytes.
1734 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +02001735 on crafted PEM input data. Found and fix provided by Guido Vranken,
1736 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
1737 accept PEM data from an untrusted source.
Simon Butcher475cf0a2015-10-05 11:57:54 +01001738 * Fix possible heap buffer overflow in base64_encoded() when the input
Simon Butcher04799a42015-09-29 00:31:09 +01001739 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001740 Intelworks. Not trigerrable remotely in TLS.
1741 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
1742 the same mbedtls_ssl_config object and memory allocation fails. Found by
Simon Butcher7776fc32015-10-05 15:44:18 +01001743 Guido Vranken, Intelworks. Cannot be forced remotely.
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001744 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher04799a42015-09-29 00:31:09 +01001745 authentication against a crafted CA cert. Cannot be triggered remotely
1746 unless you allow third parties to pick trust CAs for client auth.
1747 Found by Guido Vranken, Intelworks.
Simon Butchera12e3c02015-10-01 01:59:33 +01001748
1749Bugfix
Simon Butcher04799a42015-09-29 00:31:09 +01001750 * Fix compile error in net.c with musl libc. Found and patch provided by
Simon Butcher5624ec82015-09-29 01:06:06 +01001751 zhasha (#278).
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001752 * Fix macroization of 'inline' keyword when building as C++. (#279)
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001753
1754Changes
1755 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
1756 domain names are compliant with RFC 1035.
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001757 * Fixed paths for check_config.h in example config files. (Found by bachp)
1758 (#291)
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001759
1760= mbed TLS 2.1.1 released 2015-09-17
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001761
Simon Butchera1a11282015-09-14 21:30:40 +01001762Security
1763 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +02001764 signatures. (Found by Florian Weimer, Red Hat.)
1765 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
1766 * Fix possible client-side NULL pointer dereference (read) when the client
Simon Butcherd69f14b2015-09-11 20:00:20 +01001767 tries to continue the handshake after it failed (a misuse of the API).
1768 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
1769 afl-fuzz.)
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +02001770
1771Bugfix
1772 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
1773 * Fix off-by-one error in parsing Supported Point Format extension that
1774 caused some handshakes to fail.
1775
1776Changes
Simon Butcherd69f14b2015-09-11 20:00:20 +01001777 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001778 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001779 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001780 connection, if cookie verification is available
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +02001781 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
1782 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001783 detected and mbedtls_ssl_read() will return
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001784 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
1785 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +02001786
1787= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +02001788
1789Features
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001790 * Added support for yotta as a build system.
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +02001791 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001792
1793Bugfix
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +02001794 * Fix segfault in the benchmark program when benchmarking DHM.
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +02001795 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
1796 Leisink).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +02001797 * Fix bug when parsing a ServerHello without extensions (found by David
1798 Sears).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +02001799 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
1800 (found by Benoit Lecocq).
1801 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +02001802 installed (found by Rawi666).
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +02001803 * Fix compile error with armcc 5 with --gnu option.
1804 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +02001805 (found by robotanarchy) (#232).
1806 * Fix bug in Makefile that prevented from installing without building the
1807 tests (found by robotanarchy) (#232).
Simon Butcher52754592015-09-03 13:06:01 +01001808 * Fix missing -static-libgcc when building shared libraries for Windows
1809 with make.
1810 * Fix link error when building shared libraries for Windows with make.
1811 * Fix error when loading libmbedtls.so.
1812 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
1813 be always used (found by dcb314) (#235)
1814 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001815 result trying to unlock an unlocked mutex on invalid input (found by
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +02001816 Fredrik Axelsson) (#257)
1817 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001818 * Fix memory corruption on client with overlong PSK identity, around
1819 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
1820 Aleksandrs Saveljevs) (#238)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +02001821 * Fix unused function warning when using MBEDTLS_MDx_ALT or
1822 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
1823 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
Simon Butcher52754592015-09-03 13:06:01 +01001824
1825Changes
1826 * The PEM parser now accepts a trailing space at end of lines (#226).
1827 * It is now possible to #include a user-provided configuration file at the
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001828 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
Paul Bakker4cb87f42015-07-10 14:09:43 +01001829 compiler's command line.
Paul Bakker9c5898f2015-02-16 16:18:33 +01001830 * When verifying a certificate chain, if an intermediate certificate is
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001831 trusted, no later cert is checked. (suggested by hannes-landeholm)
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001832 (#220).
1833 * Prepend a "thread identifier" to debug messages (issue pointed out by
1834 Hugo Leisink) (#210).
1835 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
1836 length.
1837
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001838= mbed TLS 2.0.0 released 2015-07-13
1839
1840Features
1841 * Support for DTLS 1.0 and 1.2 (RFC 6347).
1842 * Ability to override core functions from MDx, SHAx, AES and DES modules
1843 with custom implementation (eg hardware accelerated), complementing the
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +02001844 ability to override the whole module.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001845 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +02001846 preserve forward secrecy, and allows sharing across multiple contexts.
1847 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001848 which algorithms and key sizes (curves for ECDSA) are acceptable.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001849 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001850 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001851 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +02001852 parameters.
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +02001853
1854API Changes
1855 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001856 You now need to link to all of them if you use TLS for example.
Antonin Décimo36e89b52019-01-23 15:24:37 +01001857 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001858 Some names have been further changed to make them more consistent.
Manuel Pégourié-Gonnarde6bdc442014-09-17 11:34:57 +02001859 Migration helpers scripts/rename.pl and include/mbedtls/compat-1.3.h are
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001860 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001861 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001862 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +02001863 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001864 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +02001865 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001866 * The following _init() functions that could return errors have
1867 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001868 should generally be the first function called on this context after init:
1869 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001870 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001871 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
Tillmann Karras588ad502015-09-25 04:27:22 +02001872 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001873 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
1874 Note that for mbedtls_ssl_setup(), you need to be done setting up the
1875 ssl_config structure before calling it.
1876 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001877 ssl_set_session() and ssl_set_client_transport_id(), plus
1878 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001879 (see rename.pl and compat-1.3.h above) and their first argument's type
1880 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001881 * ssl_set_bio() changed signature (contexts merged, order switched, one
1882 additional callback for read-with-timeout).
1883 * The following functions have been introduced and must be used in callback
1884 implementations (SNI, PSK) instead of their *conf counterparts:
1885 mbedtls_ssl_set_hs_own_cert()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001886 mbedtls_ssl_set_hs_ca_chain()
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01001887 mbedtls_ssl_set_hs_psk()
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001888 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01001889 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001890 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
1891 pointer, parameters reordered).
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02001892 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
1893 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001894 * The SSL debug callback gained two new arguments (file name, line number).
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001895 * Debug modes were removed.
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001896 * mbedtls_ssl_conf_truncated_hmac() now returns void.
1897 * mbedtls_memory_buffer_alloc_init() now returns void.
1898 * X.509 verification flags are now an uint32_t. Affect the signature of:
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001899 mbedtls_ssl_get_verify_result()
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001900 mbedtls_x509_ctr_verify_info()
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01001901 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
1902 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
1903 * The following functions changed prototype to avoid an in-out length
1904 parameter:
1905 mbedtls_base64_encode()
1906 mbedtls_base64_decode()
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02001907 mbedtls_mpi_write_string()
1908 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02001909 * In the NET module, all "int" and "int *" arguments for file descriptors
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02001910 changed type to "mbedtls_net_context *".
1911 * net_accept() gained new arguments for the size of the client_ip buffer.
Antonin Décimo36e89b52019-01-23 15:24:37 +01001912 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02001913 return void.
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02001914 * ecdsa_write_signature() gained an additional md_alg argument and
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02001915 ecdsa_write_signature_det() was deprecated.
1916 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01001917 * Last argument of x509_crt_check_key_usage() and
1918 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
1919 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01001920 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02001921 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
1922 strings; use the new *_len variables instead of strlen().
1923 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00001924 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02001925 length parameter to include the terminating null byte for PEM input.
1926 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02001927 * calloc() is now used instead of malloc() everywhere. API of platform
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001928 layer and the memory_buffer_alloc module changed accordingly.
1929 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02001930 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
1931 (support for renegotiation now needs explicit enabling in config.h).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001932 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
1933 in config.h
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02001934 * net_connect() and net_bind() have a new 'proto' argument to choose
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001935 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
1936 Their 'port' argument type is changed to a string.
1937 * Some constness fixes
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001938
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02001939Removals
1940 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02001941 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
1942 mbedtls_ecp_muladd().
1943 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02001944 (use generic functions from md.h)
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02001945 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001946 waiting function.
1947 * Removed test DHM parameters from the test certs module.
1948 * Removed the PBKDF2 module (use PKCS5).
1949 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
1950 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
1951 * Removed openssl.h (very partial OpenSSL compatibility layer).
1952 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
1953 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
1954 been removed (compiler is required to support 32-bit operations).
1955 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
1956 * Removed test program o_p_test, the script compat.sh does more.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001957 * Removed test program ssl_test, superseded by ssl-opt.sh.
1958 * Removed helper script active-config.pl
1959
1960New deprecations
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001961 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001962 argument (allowing memory savings if HMAC is not used)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001963
1964Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02001965 * Renamed a few headers to include _internal in the name. Those headers are
1966 not supposed to be included by users.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001967 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
1968 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01001969 * Changed cipher_base_t into an opaque structure.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001970 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
1971 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001972 * Removed r and s from ecdsa_context
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001973 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02001974
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001975Default behavior changes
1976 * The default minimum TLS version is now TLS 1.0.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001977 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
1978 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01001979 * Support for receiving SSLv2 ClientHello is now disabled by default at
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02001980 compile time.
1981 * The default authmode for SSL/TLS clients is now REQUIRED.
1982 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01001983 enabled in the default configuration, this is only noticeable if using a
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001984 custom config.h
1985 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01001986 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02001987 chain verification.
1988 * Negotiation of truncated HMAC is now disabled by default on server too.
1989 * The following functions are now case-sensitive:
1990 mbedtls_cipher_info_from_string()
1991 mbedtls_ecp_curve_info_from_name()
1992 mbedtls_md_info_from_string()
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001993 mbedtls_ssl_ciphersuite_from_string()
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001994 mbedtls_version_check_feature()
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001995
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001996Requirement changes
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001997 * The minimum MSVC version required is now 2010 (better C99 support).
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001998 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001999 * Compiler is required to support C99 types such as long long and uint32_t.
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01002000
2001API changes from the 1.4 preview branch
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02002002 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
2003 new prototype, and mbedtls_ssl_set_read_timeout().
2004 * The following functions now return void:
2005 mbedtls_ssl_conf_transport()
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02002006 mbedtls_ssl_conf_max_version()
2007 mbedtls_ssl_conf_min_version()
2008 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
2009 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02002010 an example implementation, see mbedtls_timing_delay_context and
2011 mbedtls_timing_set/get_delay().
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01002012 * With UDP sockets, it is no longer necessary to call net_bind() again
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01002013 after a successful net_accept().
2014
2015Changes
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02002016 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
2017 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01002018 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00002019 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
2020
2021= mbed TLS 1.3 branch
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02002022
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01002023Security
2024 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02002025 extendedKeyUsage on the leaf certificate was lost (results not accessible
2026 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00002027 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
2028 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02002029
2030Features
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02002031 * Improve ECC performance by using more efficient doubling formulas
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02002032 (contributed by Peter Dettman).
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02002033 * Add x509_crt_verify_info() to display certificate verification results.
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01002034 * Add support for reading DH parameters with privateValueLength included
2035 (contributed by Daniel Kahn Gillmor).
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00002036 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
2037 * Add support for id-at-uniqueIdentifier in X.509 names.
2038 * Add support for overriding snprintf() (except on Windows) and exit() in
2039 the platform layer.
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00002040 * Add an option to use macros instead of function pointers in the platform
2041 layer (helps get rid of unwanted references).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00002042 * Improved Makefiles for Windows targets by fixing library targets and making
2043 cross-compilation easier (thanks to Alon Bar-Lev).
2044 * The benchmark program also prints heap usage for public-key primitives
2045 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
2046 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
2047 speed and RAM (heap only for now) usage.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02002048 * New script memory.sh helps measuring the ROM and RAM requirements of two
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01002049 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02002050 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01002051 warnings on use of deprecated functions (with GCC and Clang only).
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00002052 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
2053 errors on use of deprecated functions.
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01002054
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01002055Bugfix
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01002056 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
2057 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02002058 * Fix bug in entropy.c when THREADING_C is also enabled that caused
2059 entropy_free() to crash (thanks to Rafał Przywara).
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02002060 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
2061 once on the same context.
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02002062 * Fix bug in ssl_mail_client when password is longer that username (found
2063 by Bruno Pape).
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02002064 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
2065 (detected by Clang's 3.6 UBSan).
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02002066 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
2067 initialized but not set (found by pravic).
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02002068 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02002069 doing it at runtime (using uname) rather that compile time.
2070 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
2071 * Fix potential NULL pointer dereference (not trigerrable remotely) when
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02002072 ssl_write() is called before the handshake is finished (introduced in
2073 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01002074 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01002075 rejected.
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00002076 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
2077 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00002078 * Fix hardclock() (only used in the benchmarking program) with some
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00002079 versions of mingw64 (found by kxjhlele).
2080 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00002081 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00002082 platforms.
2083 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
2084 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00002085 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02002086 in 1.3.10).
2087 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02002088 * Add missing dependency on SHA-256 in some x509 programs (reported by
2089 Gergely Budai).
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00002090 * Fix bug related to ssl_set_curves(): the client didn't check that the
2091 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02002092
2093Changes
2094 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02002095 * Remove potential sources of timing variations (some contributed by Pascal
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02002096 Junod).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02002097 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02002098 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00002099 * compat-1.2.h and openssl.h are deprecated.
2100 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02002101 more flexible (warning: OFLAGS is not used any more) (see the README)
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00002102 (contributed by Alon Bar-Lev).
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00002103 * ssl_set_own_cert() no longer calls pk_check_pair() since the
2104 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00002105 * Move from SHA-1 to SHA-256 in example programs using signatures
2106 (suggested by Thorsten Mühlfelder).
2107 * Remove some unneeded inclusions of header files from the standard library
2108 "minimize" others (eg use stddef.h if only size_t is needed).
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00002109 * Change #include lines in test files to use double quotes instead of angle
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02002110 brackets for uniformity with the rest of the code.
Paul Bakkerdaae3b72015-02-08 15:49:54 +01002111 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01002112
2113= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00002114Security
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01002115 * NULL pointer dereference in the buffer-based allocator when the buffer is
2116 full and polarssl_free() is called (found by Mark Hasemeyer)
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01002117 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01002118 not by default).
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01002119 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01002120 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01002121 client certificate) (found using Codenomicon Defensics).
2122 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
2123 (TLS server is not affected if it doesn't ask for a client certificate)
2124 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01002125 * Fix potential stack overflow while parsing crafted X.509 certificates
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00002126 (TLS server is not affected if it doesn't ask for a client certificate)
2127 (found using Codenomicon Defensics).
2128 * Fix timing difference that could theoretically lead to a
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01002129 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01002130 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01002131
2132Features
2133 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01002134 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01002135 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01002136 * Add function pk_check_pair() to test if public and private keys match.
2137 * Add x509_crl_parse_der().
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01002138 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01002139 length of an X.509 verification chain.
Paul Bakker6152b022015-04-14 15:00:09 +02002140 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01002141 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01002142 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
2143 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01002144 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01002145 a compatible enough libc (eg uClibc).
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00002146 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
2147 while using the default ciphersuite list.
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01002148 * Added new error codes and debug messages about selection of
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01002149 ciphersuite/certificate.
2150
2151Bugfix
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01002152 * Stack buffer overflow if ctr_drbg_update() is called with too large
2153 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01002154 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
2155 if memory_buffer_alloc_init() was called with buf not aligned and len not
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01002156 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01002157 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01002158 by Julian Ospald).
2159 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00002160 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
2161 multiple of 8 (found by Gergely Budai).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00002162 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00002163 Peter Vaskovic).
2164 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00002165 * ssl_get_verify_result() now works even if the handshake was aborted due
2166 to a failed verification (found by Fredrik Axelsson).
2167 * Skip writing and parsing signature_algorithm extension if none of the
2168 key exchanges enabled needs certificates. This fixes a possible interop
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00002169 issue with some servers when a zero-length extension was sent. (Reported
2170 by Peter Dettman.)
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01002171 * On a 0-length input, base64_encode() did not correctly set output length
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01002172 (found by Hendrik van den Boogaard).
2173
2174Changes
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01002175 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01002176 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01002177 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01002178 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01002179 * Forbid repeated extensions in X.509 certificates.
2180 * debug_print_buf() now prints a text view in addition to hexadecimal.
Paul Bakkere522d0f2015-01-14 16:12:48 +01002181 * A specific error is now returned when there are ciphersuites in common
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01002182 but none of them is usable due to external factors such as no certificate
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01002183 with a suitable (extended)KeyUsage or curve or no PSK set.
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01002184 * It is now possible to disable negotiation of truncated HMAC server-side
2185 at runtime with ssl_set_truncated_hmac().
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00002186 * Example programs for SSL client and server now disable SSLv3 by default.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01002187 * Example programs for SSL client and server now disable RC4 by default.
Paul Bakker9eac4f72014-10-20 13:56:15 +02002188 * Use platform.h in all test suites and programs.
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02002189
2190= PolarSSL 1.3.9 released 2014-10-20
2191Security
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02002192 * Lowest common hash was selected from signature_algorithms extension in
Paul Bakkerb082bb52014-10-20 13:37:51 +02002193 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
2194 * Remotely-triggerable memory leak when parsing some X.509 certificates
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02002195 (server is not affected if it doesn't ask for a client certificate)
Paul Bakkerb082bb52014-10-20 13:37:51 +02002196 (found using Codenomicon Defensics).
2197 * Remotely-triggerable memory leak when parsing crafted ClientHello
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02002198 (not affected if ECC support was compiled out) (found using Codenomicon
Paul Bakker8dcb2d72014-08-08 12:22:30 +02002199 Defensics).
2200
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02002201Bugfix
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02002202 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02002203 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02002204 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02002205 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
2206 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02002207 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02002208 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
2209 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02002210 * ssl_read() could return non-application data records on server while
2211 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02002212 * Server-initiated renegotiation would fail with non-blocking I/O if the
2213 write callback returned WANT_WRITE when requesting renegotiation.
Sander Niemeijeref5087d2014-08-16 12:45:52 +02002214 * ssl_close_notify() could send more than one message in some circumstances
Paul Bakker5a5fa922014-09-26 14:53:04 +02002215 with non-blocking I/O.
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02002216 * Fix compiler warnings on iOS (found by Sander Niemeijer).
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02002217 * x509_crt_parse() did not increase total_failed on PEM error
2218 * Fix compile error with armcc in mpi_is_prime()
Paul Bakker8dcb2d72014-08-08 12:22:30 +02002219 * Fix potential bad read in parsing ServerHello (found by Adrien
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02002220 Vialletelle).
2221
2222Changes
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02002223 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
2224 standard defining how to use SHA-2 with SSL 3.0).
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02002225 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
2226 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02002227 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
2228 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02002229 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2230 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02002231 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02002232 RSA keys.
2233 * Accept spaces at end of line or end of buffer in base64_decode().
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02002234 * X.509 certificates with more than one AttributeTypeAndValue per
Paul Bakker1910aa72014-07-11 11:28:56 +02002235 RelativeDistinguishedName are not accepted any more.
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02002236
2237= PolarSSL 1.3.8 released 2014-07-11
2238Security
2239 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2240 It was possible to crash the server (and client) using crafted messages
Paul Bakkerc6ece492014-05-22 15:45:03 +02002241 when a GCM suite was chosen.
2242
2243Features
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02002244 * Add CCM module and cipher mode to Cipher Layer
2245 * Support for CCM and CCM_8 ciphersuites
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02002246 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02002247 modules (certificates, CRLs and CSRs).
2248 * Blowfish in the cipher layer now supports variable length keys.
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02002249 * Add example config.h for PSK with CCM, optimized for low RAM usage.
2250 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Paul Bakker23647b42014-07-04 15:00:12 +02002251 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
2252 from the default list (inactive by default).
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02002253 * Add server-side enforcement of sent renegotiation requests
2254 (ssl_set_renegotiation_enforced())
Paul Bakkerc6ece492014-05-22 15:45:03 +02002255 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
Paul Bakker863989b2014-06-12 21:49:01 +02002256 ciphersuites to use and save some memory if the list is small.
2257
2258Changes
Paul Bakker34617722014-06-13 17:20:13 +02002259 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
2260 required on some platforms (e.g. OpenBSD)
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02002261 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02002262 against unwanted compiler optimizations
2263 * md_list() now returns hashes strongest first
Paul Bakker28476e22014-07-01 15:59:04 +02002264 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
2265 strongest offered by client.
Paul Bakker863989b2014-06-12 21:49:01 +02002266 * All public contexts have _init() and _free() functions now for simpler
Paul Bakker5593f7c2014-05-06 10:29:28 +02002267 usage pattern
2268
Paul Bakker1ebc0c52014-05-22 15:47:58 +02002269Bugfix
Paul Bakkerdff31392014-05-22 15:06:41 +02002270 * Fix in debug_print_msg()
Paul Bakker0f651c72014-05-22 15:12:19 +02002271 * Enforce alignment in the buffer allocator even if buffer is not aligned
2272 * Remove less-than-zero checks on unsigned numbers
Paul Bakker49033ba2014-06-12 21:46:13 +02002273 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2274 size (found by TrustInSoft)
2275 * Fix WSAStartup() return value check (found by Peter Vaskovic)
2276 * Other minor issues (found by Peter Vaskovic)
Paul Bakker3c38f292014-06-13 17:37:46 +02002277 * Fix symlink command for cross compiling with CMake (found by Andre
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02002278 Heinecke)
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02002279 * Fix DER output of gen_key app (found by Gergely Budai)
2280 * Very small records were incorrectly rejected when truncated HMAC was in
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02002281 use with some ciphersuites and versions (RC4 in all versions, CBC with
2282 versions < TLS 1.1).
2283 * Very large records using more than 224 bytes of padding were incorrectly
2284 rejected with CBC-based ciphersuites and TLS >= 1.1
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02002285 * Very large records using less padding could cause a buffer overread of up
2286 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02002287 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
2288 been removed in 1.3.6.)
2289 * Restore ability to locally trust a self-signed cert that is not a proper
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07002290 CA for use as an end entity certificate. (This had been removed in
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02002291 1.3.6.)
2292 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02002293 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2294 interpret semicolons as comment delimiters (found by Barry K. Nathan).
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02002295 * Fix off-by-one error in parsing Supported Point Format extension that
2296 caused some handshakes to fail.
2297 * Fix possible miscomputation of the premaster secret with DHE-PSK key
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02002298 exchange that caused some handshakes to fail with other implementations.
Paul Bakkerd5983182014-07-04 13:50:31 +02002299 (Failure rate <= 1/255 with common DHM moduli.)
2300 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakker6c343d72014-07-10 14:36:19 +02002301 * Fix base64_decode() to return and check length correctly (in case of
2302 tight buffers)
Paul Bakker5593f7c2014-05-06 10:29:28 +02002303 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
Paul Bakker47431b62014-05-02 13:27:13 +02002304 by Hui Dong)
Paul Bakkereaebbd52014-04-25 15:04:14 +02002305
Paul Bakkerc73079a2014-04-25 16:34:30 +02002306= PolarSSL 1.3.7 released on 2014-05-02
2307Features
Paul Bakker0f90d7d2014-04-30 11:49:44 +02002308 * debug_set_log_mode() added to determine raw or full logging
2309 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker92478c32014-04-25 15:18:34 +02002310 * version_check_feature() added to check for compile-time options at
Paul Bakker088c5c52014-04-25 11:11:10 +02002311 run-time
2312
2313Changes
Paul Bakker92478c32014-04-25 15:18:34 +02002314 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
Paul Bakker63844402014-04-30 15:34:12 +02002315 checked and filled in the relevant module headers
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02002316 * Debug module only outputs full lines instead of parts
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02002317 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
Paul Bakker088c5c52014-04-25 11:11:10 +02002318 * AES-NI now compiles with "old" assemblers too
Paul Bakkere92f73d2014-04-18 14:08:26 +02002319 * Ciphersuites based on RC4 now have the lowest priority by default
2320
2321Bugfix
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02002322 * Only iterate over actual certificates in ssl_write_certificate_request()
2323 (found by Matthew Page)
Paul Bakkerfdba4682014-04-25 11:48:35 +02002324 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
Paul Bakker61885c72014-04-25 12:59:03 +02002325 Karger)
2326 * cert_write app should use subject of issuer certificate as issuer of cert
Paul Bakkera7036632014-04-30 10:15:38 +02002327 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
2328 ciphersuites, for full SSL frames of data.
Paul Bakker24f37cc2014-04-30 13:33:35 +02002329 * Improve interoperability by not writing extension length in ClientHello /
Paul Bakkerf96f7b62014-04-30 16:02:38 +02002330 ServerHello when no extensions are present (found by Matthew Page)
Paul Bakker33dc46b2014-04-30 16:11:39 +02002331 * rsa_check_pubkey() now allows an E up to N
2332 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02002333 * mpi_fill_random() was creating numbers larger than requested on
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02002334 big-endian platform when size was not an integer number of limbs
Markus Pfeiffera26a0052014-04-22 20:16:15 +00002335 * Fix dependencies issues in X.509 test suite.
Barry K. Nathancf975f52014-04-23 17:40:25 -07002336 * Some parts of ssl_tls.c were compiled even when the module was disabled.
2337 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Paul Bakkere92f73d2014-04-18 14:08:26 +02002338 * Fix detection of Clang on some Apple platforms with CMake
Paul Bakker784b04f2014-04-11 15:33:59 +02002339 (found by Barry K. Nathan)
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002340
Paul Bakker27e36d32014-04-08 12:33:37 +02002341= PolarSSL 1.3.6 released on 2014-04-11
2342
Paul Bakker1cfc4582014-04-09 15:25:13 +02002343Features
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002344 * Support for the ALPN SSL extension
Paul Bakker59366212014-04-09 15:55:20 +02002345 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002346 * Enable verification of the keyUsage extension for CA and leaf
2347 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Paul Bakker27e36d32014-04-08 12:33:37 +02002348 * Enable verification of the extendedKeyUsage extension
Paul Bakker4984d3c2014-04-04 15:39:37 +02002349 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
2350
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02002351Changes
2352 * x509_crt_info() now prints information about parsed extensions as well
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02002353 * pk_verify() now returns a specific error code when the signature is valid
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02002354 but shorter than the supplied length.
Paul Bakker4984d3c2014-04-04 15:39:37 +02002355 * Use UTC time to check certificate validity.
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002356 * Reject certificates with times not in UTC, per RFC 5280.
2357
2358Security
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02002359 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
2360 (Found by Watson Ladd.)
2361 * The notAfter date of some certificates was no longer checked since 1.3.5.
2362 This affects certificates in the user-supplied chain except the top
Paul Bakker4224bc02014-04-08 14:36:50 +02002363 certificate. If the user-supplied chain contains only one certificates,
2364 it is not affected (ie, its notAfter date is properly checked).
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002365 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002366 TrustInSoft)
2367
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01002368Bugfix
Paul Bakker75a28602014-03-31 12:08:17 +02002369 * The length of various ClientKeyExchange messages was not properly checked.
2370 * Some example server programs were not sending the close_notify alert.
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02002371 * Potential memory leak in mpi_exp_mod() when error occurs during
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02002372 calculation of RR.
2373 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02002374 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
2375 Gergely Budai).
Shuo Chen95a0d112014-04-04 21:04:40 -07002376 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
2377 (found by Gergely Budai)
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01002378 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
2379 Shuo Chen).
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01002380 * oid_get_numeric_string() used to truncate the output without returning an
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02002381 error if the output buffer was just 1 byte too small.
2382 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Paul Bakker16300582014-04-11 13:28:43 +02002383 * Calling pk_debug() on an RSA-alt key would segfault.
2384 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02002385 * Potential buffer overwrite in pem_write_buffer() because of low length
2386 indication (found by Thijs Alkemade)
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002387 * EC curves constants, which should be only in ROM since 1.3.3, were also
Paul Bakker96d52652014-03-26 16:55:50 +01002388 stored in RAM due to missing 'const's (found by Gergely Budai).
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002389
2390= PolarSSL 1.3.5 released on 2014-03-26
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002391Features
Paul Bakker6a28e722014-02-06 13:41:55 +01002392 * HMAC-DRBG as a separate module
Paul Bakkerf2561b32014-02-06 15:11:55 +01002393 * Option to set the Curve preference order (disabled by default)
Paul Bakker2ceda572014-02-06 15:55:25 +01002394 * Single Platform compatilibity layer (for memory / printf / fprintf)
2395 * Ability to provide alternate timing implementation
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002396 * Ability to force the entropy module to use SHA-256 as its basis
2397 (POLARSSL_ENTROPY_FORCE_SHA256)
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01002398 * Testing script ssl-opt.sh added for testing 'live' ssl option
Paul Bakker66ff70d2014-03-26 11:54:05 +01002399 interoperability against OpenSSL and PolarSSL
Paul Bakker6a28e722014-02-06 13:41:55 +01002400 * Support for reading EC keys that use SpecifiedECDomain in some cases.
2401 * Entropy module now supports seed writing and reading
2402
Paul Bakker47703a02014-02-06 15:01:20 +01002403Changes
2404 * Deprecated the Memory layer
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01002405 * entropy_add_source(), entropy_update_manual() and entropy_gather()
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01002406 now thread-safe if POLARSSL_THREADING_C defined
2407 * Improvements to the CMake build system, contributed by Julian Ospald.
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002408 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2409 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002410 * Revamped the compat.sh interoperatibility script to include support for
Paul Bakker674e0b02014-03-26 13:26:52 +01002411 testing against GnuTLS
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002412 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002413 * Improvements to tests/Makefile, contributed by Oden Eriksson.
2414
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01002415Security
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002416 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01002417 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01002418 attack was already impossible when authentication is required).
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002419 * Check notBefore timestamp of certificates and CRLs from the future.
Paul Bakker91c61bc2014-03-26 14:06:55 +01002420 * Forbid sequence number wrapping
2421 * Fixed possible buffer overflow with overlong PSK
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002422 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002423 TrustInSoft)
2424
2425Bugfix
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002426 * ecp_gen_keypair() does more tries to prevent failure because of
Paul Bakkercd6d69a2014-02-06 15:43:21 +01002427 statistics
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01002428 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Paul Bakker3d52ab72014-03-07 10:33:55 +01002429 * Fixed testing with out-of-source builds using cmake
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01002430 * Fixed version-major intolerance in server
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01002431 * Fixed CMake symlinking on out-of-source builds
Alex Wilson73491422014-03-06 00:04:09 +10002432 * Fixed dependency issues in test suite
2433 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002434 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2435 Alex Wilson.)
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01002436 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002437 * m_sleep() was sleeping twice too long on most Unix platforms.
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002438 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002439 send() would return an EAGAIN error when sending the ticket.
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01002440 * ssl_cache was leaking memory when reusing a timed out entry containing a
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002441 client certificate.
Paul Bakker3d6504a2014-03-17 13:41:51 +01002442 * ssl_srv was leaking memory when client presented a timed out ticket
2443 containing a client certificate
Paul Bakker77f4f392014-03-26 15:28:55 +01002444 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2445 out_ctr failed
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01002446 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
Paul Bakker5fff23b2014-03-26 15:34:54 +01002447 of one of them failed
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002448 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakker2aca2412014-01-27 11:49:46 +01002449 * x509_get_current_time() uses localtime_r() to prevent thread issues
Paul Bakker3eb96732014-01-22 13:08:19 +01002450
Paul Bakker0ac99ca2014-01-22 13:08:44 +01002451= PolarSSL 1.3.4 released on 2014-01-27
Paul Bakker5862eee2014-01-22 14:18:03 +01002452Features
Paul Bakker556efba2014-01-24 15:38:12 +01002453 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01002454 * Support for RIPEMD-160
Paul Bakker3eb96732014-01-22 13:08:19 +01002455 * Support for AES CFB8 mode
2456 * Support for deterministic ECDSA (RFC 6979)
2457
2458Bugfix
Paul Bakkerd75ba402014-01-24 16:11:17 +01002459 * Potential memory leak in bignum_selftest()
Paul Bakkerb84582b2014-01-27 12:23:43 +01002460 * Replaced expired test certificate
2461 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01002462 * net module handles timeouts on blocking sockets better (found by Tilman
2463 Sauerbeck)
2464 * Assembly format fixes in bn_mul.h
Paul Bakkerb84582b2014-01-27 12:23:43 +01002465
2466Security
Paul Bakker3eb96732014-01-22 13:08:19 +01002467 * Missing MPI_CHK calls added around unguarded mpi calls (found by
Paul Bakker5bc07a32013-12-31 10:57:44 +01002468 TrustInSoft)
Paul Bakker014f1432013-12-02 14:54:01 +01002469
2470= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker9dc53a92013-12-02 14:55:28 +01002471Features
2472 * EC key generation support in gen_key app
Paul Bakker48d78a52013-12-05 16:11:38 +01002473 * Support for adhering to client ciphersuite order preference
Paul Bakkerfdf94692013-12-17 13:09:31 +01002474 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
Paul Bakker5a607d22013-12-17 14:33:42 +01002475 * Support for Curve25519
Paul Bakker23116fd2013-12-30 14:09:47 +01002476 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
Paul Bakkerf9c49532013-12-19 15:40:58 +01002477 * Support for IPv6 in the NET module
Paul Bakker014f1432013-12-02 14:54:01 +01002478 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakker7aa03752013-11-26 17:37:31 +01002479 * SSL Pthread-based server example added (ssl_pthread_server)
2480
2481Changes
2482 * gen_prime() speedup
Paul Bakkerc3d0d072013-12-02 14:50:49 +01002483 * Speedup of ECP multiplication operation
Paul Bakker4040d7e2013-12-02 14:52:57 +01002484 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerb14817d2013-12-02 22:03:23 +01002485 * Dropped use of readdir_r() instead of readdir() with threading support
Paul Bakker5ab68ba2013-12-17 13:10:48 +01002486 * More constant-time checks in the RSA module
Paul Bakkerc7387912013-12-31 10:32:50 +01002487 * Split off curves from ecp.c into ecp_curves.c
Paul Bakkera8fd3e32013-12-31 11:54:08 +01002488 * Curves are now stored fully in ROM
Paul Bakker7aa03752013-11-26 17:37:31 +01002489 * Memory usage optimizations in ECP module
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002490 * Removed POLARSSL_THREADING_DUMMY
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01002491
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002492Bugfix
Paul Bakkera9a028e2013-11-21 17:31:06 +01002493 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakker7aa03752013-11-26 17:37:31 +01002494 * Fixed X.509 hostname comparison (with non-regular characters)
2495 * SSL now gracefully handles missing RNG
Paul Bakker6f0636a2013-12-16 15:24:05 +01002496 * Missing defines / cases for RSA_PSK key exchange
Paul Bakkerf70fe812013-12-16 16:43:10 +01002497 * crypt_and_hash app checks MAC before final decryption
Paul Bakker1a56fc92013-12-19 13:51:24 +01002498 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakker6ea1a952013-12-31 11:16:03 +01002499 * Memory leak in benchmark application
2500 * Fixed x509_crt_parse_path() bug on Windows platforms
Paul Bakker6992eb72013-12-31 11:35:16 +01002501 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2502 TrustInSoft)
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002503 * Fixed potential overflow in certificate size verification in
Paul Bakker956c9e02013-12-19 14:42:28 +01002504 ssl_write_certificate() (found by TrustInSoft)
2505
2506Security
2507 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Paul Bakkerf4dc1862013-11-04 17:29:42 +01002508 TrustInSoft)
Paul Bakker08bb1872013-10-28 14:03:26 +01002509
2510= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakker3f917e22013-10-28 14:16:59 +01002511Features
Paul Bakker16421222013-10-28 14:37:09 +01002512 * PK tests added to test framework
Paul Bakker08bb1872013-10-28 14:03:26 +01002513 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker7bc745b2013-10-28 14:39:49 +01002514 * Support for Camellia-GCM mode and ciphersuites
2515
Paul Bakkere1121b62013-10-31 14:37:37 +01002516Changes
Paul Bakker7b0be682013-10-29 14:24:37 +01002517 * Padding checks in cipher layer are now constant-time
Paul Bakkere1121b62013-10-31 14:37:37 +01002518 * Value comparisons in SSL layer are now constant-time
Paul Bakker7bc745b2013-10-28 14:39:49 +01002519 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakker677377f2013-10-28 12:54:26 +01002520 * SSL Renegotiation was refactored
Paul Bakker16421222013-10-28 14:37:09 +01002521
Paul Bakker677377f2013-10-28 12:54:26 +01002522Bugfix
Paul Bakker45a2c8d2013-10-28 12:57:08 +01002523 * More stringent checks in cipher layer
Paul Bakker68037da2013-10-28 14:02:40 +01002524 * Server does not send out extensions not advertised by client
Paul Bakker50dc8502013-10-28 21:19:10 +01002525 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker93c6aa42013-10-28 22:28:09 +01002526 * Misc fixes and additions to dependency checks
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01002527 * Const correctness
Paul Bakkerfa6a6202013-10-28 18:48:30 +01002528 * cert_write with selfsign should use issuer_name as subject_name
Paul Bakkere1121b62013-10-31 14:37:37 +01002529 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakker677377f2013-10-28 12:54:26 +01002530 * Defines to handle UEFI environment under MSVC
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002531 * Server-side initiated renegotiations send HelloRequest
Paul Bakkerb799dec2013-10-11 10:03:27 +02002532
2533= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakker376e8152013-10-15 12:44:23 +02002534Features
Paul Bakkerf34673e2013-10-15 12:46:17 +02002535 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakkerb799dec2013-10-11 10:03:27 +02002536 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerddba8822013-10-11 09:21:56 +02002537 * Support for RSA-PSK key-exchange and ciphersuites
2538
Paul Bakker16770332013-10-11 09:59:44 +02002539Changes
Paul Bakkerbe089b02013-10-14 15:51:50 +02002540 * RSA blinding locks for a smaller amount of time
Paul Bakkera7ea6a52013-10-15 11:55:10 +02002541 * TLS compression only allocates working buffer once
Paul Bakkerddba8822013-10-11 09:21:56 +02002542 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
2543 * config.h is more script-friendly
2544
2545Bugfix
2546 * Missing MSVC defines added
Paul Bakkerfcc17212013-10-11 09:36:52 +02002547 * Compile errors with POLARSSL_RSA_NO_CRT
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02002548 * Header files with 'polarssl/'
Paul Bakker4aa40d42013-10-11 10:49:24 +02002549 * Const correctness
Paul Bakkerb7c13122013-10-11 10:51:32 +02002550 * Possible naming collision in dhm_context
Paul Bakker5191e922013-10-11 10:54:28 +02002551 * Better support for MSVC
Paul Bakkerddba8822013-10-11 09:21:56 +02002552 * threading_set_alt() name
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002553 * Added missing x509write_crt_set_version()
Paul Bakker41c83d32013-03-20 14:39:14 +01002554
2555= PolarSSL 1.3.0 released on 2013-10-01
2556Features
2557 * Elliptic Curve Cryptography module added
2558 * Elliptic Curve Diffie Hellman module added
Paul Bakkerc8676782013-08-28 12:15:11 +02002559 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
2560 (ECDHE-based ciphersuites)
Paul Bakker8f4ddae2013-04-15 15:09:54 +02002561 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
Paul Bakkerb91c2b52013-04-19 16:05:16 +02002562 (ECDSA-based ciphersuites)
Paul Bakker6e339b52013-07-03 13:37:05 +02002563 * Ability to specify allowed ciphersuites based on the protocol version.
2564 * PSK and DHE-PSK based ciphersuites added
Paul Bakker2466d932013-09-28 14:40:38 +02002565 * Memory allocation abstraction layer added
Paul Bakker5ad403f2013-09-18 21:21:30 +02002566 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
Paul Bakkerf85778e2013-07-19 14:55:25 +02002567 * Threading abstraction layer added (dummy / pthread / alternate)
2568 * Public Key abstraction layer added
2569 * Parsing Elliptic Curve keys
2570 * Parsing Elliptic Curve certificates
Paul Bakkerda4d1c32013-08-14 12:24:34 +02002571 * Support for max_fragment_length extension (RFC 6066)
2572 * Support for truncated_hmac extension (RFC 6066)
Paul Bakker936539a2013-08-14 13:49:20 +02002573 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
Paul Bakkerca174fe2013-08-28 16:31:30 +02002574 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
2575 * Support for session tickets (RFC 5077)
Paul Bakker7fb4a792013-09-12 12:00:52 +02002576 * Certificate Request (CSR) generation with extensions (key_usage,
2577 ns_cert_type)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02002578 * X509 Certificate writing with extensions (basic_constraints,
Paul Bakker8b817dc2013-09-25 18:03:58 +02002579 issuer_key_identifier, etc)
Darryl Green11999bb2018-03-13 15:22:58 +00002580 * Optional blinding for RSA, DHM and EC
Paul Bakker41c83d32013-03-20 14:39:14 +01002581 * Support for multiple active certificate / key pairs in SSL servers for
Paul Bakker9b5798d2013-03-13 13:53:00 +01002582 the same host (Not to be confused with SNI!)
Paul Bakkerd2f068e2013-08-27 21:19:20 +02002583
2584Changes
Paul Bakker68884e32013-01-07 18:20:04 +01002585 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
2586 individually
Paul Bakker9b5798d2013-03-13 13:53:00 +01002587 * Introduced separate SSL Ciphersuites module that is based on
2588 Cipher and MD information
Paul Bakkerc70b9822013-04-07 22:00:46 +02002589 * Internals for SSL module adapted to have separate IV pointer that is
2590 dynamically set (Better support for hardware acceleration)
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02002591 * Moved all OID functionality to a separate module. RSA function
Paul Bakker2fbefde2013-06-29 16:01:15 +02002592 prototypes for the RSA sign and verify functions changed as a result
2593 * Split up the GCM module into a starts/update/finish cycle
Paul Bakker0be444a2013-08-27 21:55:01 +02002594 * Client and server now filter sent and accepted ciphersuites on minimum
Paul Bakkere2ab84f2013-06-29 18:24:32 +02002595 and maximum protocol version
2596 * Ability to disable server_name extension (RFC 6066)
Paul Bakker9e36f042013-06-30 14:34:05 +02002597 * Renamed error_strerror() to the less conflicting polarssl_strerror()
Paul Bakker548957d2013-08-30 10:30:02 +02002598 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker45f21c72013-09-18 15:33:49 +02002599 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
2600 * All RSA operations require a random generator for blinding purposes
Paul Bakker5ad403f2013-09-18 21:21:30 +02002601 * X509 core refactored
Paul Bakkerc27c4e22013-09-23 15:01:36 +02002602 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
2603 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakker9b5798d2013-03-13 13:53:00 +01002604 * Support faulty X509 v1 certificates with extensions
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002605 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakker73d44312013-05-22 13:56:26 +02002606
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02002607Bugfix
Paul Bakker1e6a1752013-07-26 14:10:22 +02002608 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakker003dbad2013-09-09 17:26:14 +02002609 * zlib compression/decompression skipped on empty blocks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002610 * Support for AIX header locations in net.c module
Paul Bakkeraab30c12013-08-30 11:00:25 +02002611 * Fixed file descriptor leaks
2612
2613Security
2614 * RSA blinding on CRT operations to counter timing attacks
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02002615 (found by Cyril Arnaud and Pierre-Alain Fouque)
2616
2617
2618= Version 1.2.14 released 2015-05-??
2619
2620Security
2621 * Fix potential invalid memory read in the server, that allows a client to
2622 crash it remotely (found by Caj Larsson).
2623 * Fix potential invalid memory read in certificate parsing, that allows a
2624 client to crash the server remotely if client authentication is enabled
2625 (found using Codenomicon Defensics).
2626 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
2627 https://dl.acm.org/citation.cfm?id=2714625
2628
2629Bugfix
2630 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
2631 * Fix hardclock() (only used in the benchmarking program) with some
2632 versions of mingw64 (found by kxjhlele).
2633 * Fix warnings from mingw64 in timing.c (found by kxjklele).
2634 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
2635 platforms (found with Coverity Scan).
2636
2637= Version 1.2.13 released 2015-02-16
2638Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
2639 this will be made in the 1.2 branch at this point.
2640
2641Security
2642 * Fix remotely-triggerable uninitialised pointer dereference caused by
2643 crafted X.509 certificate (TLS server is not affected if it doesn't ask
2644 for a client certificate) (found using Codenomicon Defensics).
2645 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
2646 (TLS server is not affected if it doesn't ask for a client certificate)
2647 (found using Codenomicon Defensics).
2648 * Fix potential stack overflow while parsing crafted X.509 certificates
2649 (TLS server is not affected if it doesn't ask for a client certificate)
2650 found using Codenomicon Defensics).
2651 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
2652 (TLS server is not affected if it doesn't ask for a client certificate).
2653
2654Bugfix
2655 * Fix potential undefined behaviour in Camellia.
2656 * Fix memory leaks in PKCS#5 and PKCS#12.
2657 * Stack buffer overflow if ctr_drbg_update() is called with too large
2658 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
2659 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
2660 in 1.2.12).
2661 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
2662 Peter Vaskovic).
2663 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
2664 * ssl_get_verify_result() now works even if the handshake was aborted due
2665 to a failed verification (found by Fredrik Axelsson).
2666 * Skip writing and parsing signature_algorithm extension if none of the
2667 key exchanges enabled needs certificates. This fixes a possible interop
2668 issue with some servers when a zero-length extension was sent. (Reported
2669 by Peter Dettman.)
2670 * On a 0-length input, base64_encode() did not correctly set output length
2671 (found by Hendrik van den Boogaard).
2672
2673Changes
2674 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
2675 * Forbid repeated extensions in X.509 certificates.
Paul Bakkera6c5ea22014-10-24 16:26:29 +02002676 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
2677 length of an X.509 verification chain (default = 8).
2678= Version 1.2.12 released 2014-10-24
2679
2680Security
2681 * Remotely-triggerable memory leak when parsing some X.509 certificates
2682 (server is not affected if it doesn't ask for a client certificate).
2683 (Found using Codenomicon Defensics.)
2684
2685Bugfix
2686 * Fix potential bad read in parsing ServerHello (found by Adrien
2687 Vialletelle).
2688 * ssl_close_notify() could send more than one message in some circumstances
2689 with non-blocking I/O.
2690 * x509_crt_parse() did not increase total_failed on PEM error
2691 * Fix compiler warnings on iOS (found by Sander Niemeijer).
2692 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
2693 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
2694 * ssl_read() could return non-application data records on server while
2695 renegotation was pending, and on client when a HelloRequest was received.
2696 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
2697
2698Changes
2699 * X.509 certificates with more than one AttributeTypeAndValue per
2700 RelativeDistinguishedName are not accepted any more.
2701 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2702 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02002703 * Accept spaces at end of line or end of buffer in base64_decode().
2704
2705= Version 1.2.11 released 2014-07-11
2706Features
2707 * Entropy module now supports seed writing and reading
2708
2709Changes
2710 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
2711 * Improvements to the CMake build system, contributed by Julian Ospald.
2712 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2713 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
2714 * Improvements to tests/Makefile, contributed by Oden Eriksson.
2715 * Use UTC time to check certificate validity.
2716 * Reject certificates with times not in UTC, per RFC 5280.
2717 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2718 against unwanted compiler optimizations
2719
2720Security
2721 * Forbid change of server certificate during renegotiation to prevent
2722 "triple handshake" attack when authentication mode is optional (the
2723 attack was already impossible when authentication is required).
2724 * Check notBefore timestamp of certificates and CRLs from the future.
2725 * Forbid sequence number wrapping
2726 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2727 TrustInSoft)
2728 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2729 It was possible to crash the server (and client) using crafted messages
2730 when a GCM suite was chosen.
2731
2732Bugfix
2733 * Fixed X.509 hostname comparison (with non-regular characters)
2734 * SSL now gracefully handles missing RNG
2735 * crypt_and_hash app checks MAC before final decryption
2736 * Fixed x509_crt_parse_path() bug on Windows platforms
2737 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2738 TrustInSoft)
2739 * Fixed potential overflow in certificate size verification in
2740 ssl_write_certificate() (found by TrustInSoft)
2741 * Fix ASM format in bn_mul.h
2742 * Potential memory leak in bignum_selftest()
2743 * Replaced expired test certificate
2744 * ssl_mail_client now terminates lines with CRLF, instead of LF
2745 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
2746 * Fixed testing with out-of-source builds using cmake
2747 * Fixed version-major intolerance in server
2748 * Fixed CMake symlinking on out-of-source builds
2749 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2750 Alex Wilson.)
2751 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2752 out_ctr failed
2753 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2754 of one of them failed
2755 * x509_get_current_time() uses localtime_r() to prevent thread issues
2756 * Some example server programs were not sending the close_notify alert.
2757 * Potential memory leak in mpi_exp_mod() when error occurs during
2758 calculation of RR.
2759 * Improve interoperability by not writing extension length in ClientHello
2760 when no extensions are present (found by Matthew Page)
2761 * rsa_check_pubkey() now allows an E up to N
2762 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
2763 * mpi_fill_random() was creating numbers larger than requested on
2764 big-endian platform when size was not an integer number of limbs
2765 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
2766 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2767 size (found by TrustInSoft)
2768 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
2769 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2770 interpret semicolons as comment delimiters (found by Barry K. Nathan).
2771 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
2772 * Fix base64_decode() to return and check length correctly (in case of
Paul Bakker3a2c0562013-10-07 16:22:05 +02002773 tight buffers)
2774
2775= Version 1.2.10 released 2013-10-07
2776Changes
2777 * Changed RSA blinding to a slower but thread-safe version
2778
2779Bugfix
2780 * Fixed memory leak in RSA as a result of introduction of blinding
2781 * Fixed ssl_pkcs11_decrypt() prototype
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002782 * Fixed MSVC project files
Paul Bakkerc13aab12013-09-26 10:12:19 +02002783
2784= Version 1.2.9 released 2013-10-01
2785Changes
2786 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
2787
2788Bugfix
2789 * Fixed potential memory leak when failing to resume a session
2790 * Fixed potential file descriptor leaks (found by Remi Gacogne)
2791 * Minor fixes
2792
2793Security
2794 * Fixed potential heap buffer overflow on large hostname setting
2795 * Fixed potential negative value misinterpretation in load_file()
2796 * RSA blinding on CRT operations to counter timing attacks
Paul Bakkerde656232013-06-24 19:07:34 +02002797 (found by Cyril Arnaud and Pierre-Alain Fouque)
2798
2799= Version 1.2.8 released 2013-06-19
2800Features
2801 * Parsing of PKCS#8 encrypted private key files
2802 * PKCS#12 PBE and derivation functions
2803 * Centralized module option values in config.h to allow user-defined
2804 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
2805
2806Changes
2807 * HAVEGE random generator disabled by default
2808 * Internally split up x509parse_key() into a (PEM) handler function
2809 and specific DER parser functions for the PKCS#1 and unencrypted
2810 PKCS#8 private key formats
Darryl Green11999bb2018-03-13 15:22:58 +00002811 * Added mechanism to provide alternative implementations for all
Paul Bakkerde656232013-06-24 19:07:34 +02002812 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
2813 config.h)
2814 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
2815 old PBKDF2 module
2816
2817Bugfix
2818 * Secure renegotiation extension should only be sent in case client
2819 supports secure renegotiation
2820 * Fixed offset for cert_type list in ssl_parse_certificate_request()
2821 * Fixed const correctness issues that have no impact on the ABI
2822 * x509parse_crt() now better handles PEM error situations
Darryl Green11999bb2018-03-13 15:22:58 +00002823 * ssl_parse_certificate() now calls x509parse_crt_der() directly
Paul Bakkerde656232013-06-24 19:07:34 +02002824 instead of the x509parse_crt() wrapper that can also parse PEM
2825 certificates
2826 * x509parse_crtpath() is now reentrant and uses more portable stat()
2827 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
2828 * Fixed values for 2-key Triple DES in cipher layer
2829 * ssl_write_certificate_request() can handle empty ca_chain
2830
2831Security
2832 * A possible DoS during the SSL Handshake, due to faulty parsing of
2833 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2834
2835= Version 1.2.7 released 2013-04-13
2836Features
2837 * Ability to specify allowed ciphersuites based on the protocol version.
2838
2839Changes
2840 * Default Blowfish keysize is now 128-bits
2841 * Test suites made smaller to accommodate Raspberry Pi
2842
2843Bugfix
2844 * Fix for MPI assembly for ARM
Paul Bakker90f042d2013-03-11 11:38:44 +01002845 * GCM adapted to support sizes > 2^29
Paul Bakkerc0463502013-02-14 11:19:38 +01002846
2847= Version 1.2.6 released 2013-03-11
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01002848Bugfix
2849 * Fixed memory leak in ssl_free() and ssl_reset() for active session
Paul Bakkere3e4a592013-02-28 10:20:53 +01002850 * Corrected GCM counter incrementation to use only 32-bits instead of
Paul Bakker37286a52013-03-06 16:55:11 +01002851 128-bits (found by Yawning Angel)
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01002852 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakkerc0463502013-02-14 11:19:38 +01002853 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerb3869132013-02-28 17:21:01 +01002854 * Fixed assembly code for ARM (Thumb and regular) for some compilers
2855
2856Changes
2857 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
Paul Bakkera43231c2013-02-28 17:33:49 +01002858 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
2859 PKCS#1 v2.1 functions
Paul Bakker78a8c712013-03-06 17:01:52 +01002860 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
2861 or rsa_rsaes_oaep_decrypt()
Paul Bakkere81beda2013-03-06 17:40:46 +01002862 * Re-added handling for SSLv2 Client Hello when the define
2863 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkerb3869132013-02-28 17:21:01 +01002864 * The SSL session cache module (ssl_cache) now also retains peer_cert
Paul Bakkere47b34b2013-02-27 14:48:00 +01002865 information (not the entire chain)
2866
2867Security
Paul Bakker8804f692013-02-28 18:06:26 +01002868 * Removed further timing differences during SSL message decryption in
2869 ssl_decrypt_buf()
2870 * Removed timing differences due to bad padding from
Paul Bakkere47b34b2013-02-27 14:48:00 +01002871 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
Paul Bakkerc7a2da42013-02-02 19:23:57 +01002872 operations
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002873
2874= Version 1.2.5 released 2013-02-02
Paul Bakkerd66f0702013-01-31 16:57:45 +01002875Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002876 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakker40865c82013-01-31 17:13:13 +01002877 * Debug messages about padding errors during SSL message decryption are
2878 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakkera35aa542013-03-06 17:06:21 +01002879 * Sending of security-relevant alert messages that do not break
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002880 interoperability can be switched on/off with the flag
Paul Bakker45829992013-01-03 14:52:21 +01002881 POLARSSL_SSL_ALL_ALERT_MESSAGES
2882
2883Security
2884 * Removed timing differences during SSL message decryption in
Paul Bakker14c56a32013-01-25 17:11:37 +01002885 ssl_decrypt_buf() due to badly formatted padding
Paul Bakker1961b702013-01-25 14:49:24 +01002886
Paul Bakker68884e32013-01-07 18:20:04 +01002887= Version 1.2.4 released 2013-01-25
2888Changes
Paul Bakker1961b702013-01-25 14:49:24 +01002889 * More advanced SSL ciphersuite representation and moved to more dynamic
2890 SSL core
Paul Bakker40628ba2013-01-03 10:50:31 +01002891 * Added ssl_handshake_step() to allow single stepping the handshake process
2892
Paul Bakker21dca692013-01-03 11:41:08 +01002893Bugfix
Paul Bakker9c94cdd2013-01-22 13:45:33 +01002894 * Memory leak when using RSA_PKCS_V21 operations fixed
2895 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker40628ba2013-01-03 10:50:31 +01002896 * Correctly handle CertificateRequest message in client for <= TLS 1.1
Paul Bakkerfb1ba782012-11-26 16:28:25 +01002897 without DN list
2898
2899= Version 1.2.3 released 2012-11-26
2900Bugfix
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002901 * Server not always sending correct CertificateRequest message
Paul Bakkere667c982012-11-20 13:50:22 +01002902
2903= Version 1.2.2 released 2012-11-24
2904Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002905 * Added p_hw_data to ssl_context for context specific hardware acceleration
Paul Bakkere667c982012-11-20 13:50:22 +01002906 data
Paul Bakker7c90da92012-11-23 14:02:40 +01002907 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002908
2909Bugfixes
Paul Bakker7c90da92012-11-23 14:02:40 +01002910 * Fixed client authentication compatibility
Paul Bakker14926332012-11-20 10:58:09 +01002911 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker34d8dbc2012-11-14 12:11:38 +00002912
2913= Version 1.2.1 released 2012-11-20
2914Changes
2915 * Depth that the certificate verify callback receives is now numbered
Paul Bakker7a2538e2012-11-02 10:59:36 +00002916 bottom-up (Peer cert depth is 0)
2917
Paul Bakkerd9374b02012-11-02 11:02:58 +00002918Bugfixes
Paul Bakkerf02c5642012-11-13 10:25:21 +00002919 * Fixes for MSVC6
2920 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01002921 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2922 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00002923 * Fixed possible segfault in mpi_shift_r() (found by Manuel
Paul Bakker7a2538e2012-11-02 10:59:36 +00002924 Pégourié-Gonnard)
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002925 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakkerfab5c822012-02-06 16:45:10 +00002926
2927= Version 1.2.0 released 2012-10-31
2928Features
2929 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
Paul Bakkera8cd2392012-02-11 16:09:32 +00002930 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
2931 default!
2932 * Added support for wildcard certificates
Paul Bakkerbdb912d2012-02-13 23:11:30 +00002933 * Added support for multi-domain certificates through the X509 Subject
2934 Alternative Name extension
2935 * Added preliminary ASN.1 buffer writing support
2936 * Added preliminary X509 Certificate Request writing support
Paul Bakker89e80c92012-03-20 13:50:09 +00002937 * Added key_app_writer example application
Paul Bakker48916f92012-09-16 19:57:18 +00002938 * Added cert_req example application
Paul Bakkerca4ab492012-04-18 14:23:57 +00002939 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker01cc3942012-05-08 08:36:15 +00002940 * Added TLS 1.2 support (RFC 5246)
Paul Bakker05ef8352012-05-08 09:17:57 +00002941 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002942 * Added commandline error code convertor (util/strerror)
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002943 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakker8d914582012-06-04 12:46:42 +00002944 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00002945 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker2770fbd2012-07-03 13:30:23 +00002946 * Added X509 CA Path support
Paul Bakker6132d0a2012-07-04 17:10:40 +00002947 * Added Thumb assembly optimizations
Paul Bakkerf518b162012-08-23 13:03:18 +00002948 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker48916f92012-09-16 19:57:18 +00002949 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakker29b64762012-09-25 09:36:44 +00002950 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker0a597072012-09-25 21:55:46 +00002951 * Added Secure Renegotiation (RFC 5746)
Paul Bakker5701cdc2012-09-27 21:49:42 +00002952 * Added predefined DHM groups from RFC 5114
Paul Bakker1d29fb52012-09-28 13:28:45 +00002953 * Added simple SSL session cache implementation
Paul Bakkerfab5c822012-02-06 16:45:10 +00002954 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1504af52012-02-11 16:17:43 +00002955 * Added option to add minimum accepted SSL/TLS protocol version
2956
Paul Bakker048d04e2012-02-12 17:31:04 +00002957Changes
Paul Bakker6b906e52012-05-08 12:01:43 +00002958 * Removed redundant POLARSSL_DEBUG_MSG define
2959 * AES code only check for Padlock once
Paul Bakker186751d2012-05-08 13:16:14 +00002960 * Fixed const-correctness mpi_get_bit()
Paul Bakker4d2c1242012-05-10 14:12:46 +00002961 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker5b377842012-05-16 07:57:36 +00002962 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker6132d0a2012-07-04 17:10:40 +00002963 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
2964 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakkerec636f32012-09-09 19:17:02 +00002965 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
Paul Bakker0a597072012-09-25 21:55:46 +00002966 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkereb2c6582012-09-27 19:15:01 +00002967 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
2968 * Revamped session resumption handling
Paul Bakker915275b2012-09-28 07:10:55 +00002969 * Generalized external private key implementation handling (like PKCS#11)
Paul Bakker5c2364c2012-10-01 14:41:15 +00002970 in SSL/TLS
Paul Bakker645ce3a2012-10-31 12:32:41 +00002971 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker1504af52012-02-11 16:17:43 +00002972 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker37824582012-03-22 14:10:22 +00002973 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker7beceb22012-03-22 14:19:49 +00002974
2975Bugfix
Paul Bakker430ffbe2012-05-01 08:14:20 +00002976 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
Paul Bakker5b377842012-05-16 07:57:36 +00002977 Hui Dong)
Paul Bakkerf6198c12012-05-16 08:02:29 +00002978 * Fixed potential heap corruption in x509_name allocation
2979 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002980 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
Darryl Green11999bb2018-03-13 15:22:58 +00002981 #52)
Paul Bakkercefb3962012-06-27 11:51:09 +00002982 * Handle encryption with private key and decryption with public key as per
Paul Bakker535e97d2012-08-23 10:49:55 +00002983 RFC 2313
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00002984 * Handle empty certificate subject names
Paul Bakker995a2152012-09-25 08:19:56 +00002985 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerb00ca422012-09-25 12:10:00 +00002986 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker4f024b72012-10-30 07:29:57 +00002987 with carry rollover (found by Ruslan Yushchenko)
Paul Bakker37824582012-03-22 14:10:22 +00002988 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker452d5322012-04-05 12:07:34 +00002989 * Fixed MPI assembly for SPARC64 platform
Paul Bakker3c16db92012-07-05 13:58:08 +00002990
2991Security
Paul Bakker452d5322012-04-05 12:07:34 +00002992 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002993 Vanderbeken)
Paul Bakkerc13aab12013-09-26 10:12:19 +02002994
2995= Version 1.1.8 released on 2013-10-01
2996Bugfix
2997 * Fixed potential memory leak when failing to resume a session
2998 * Fixed potential file descriptor leaks
2999
3000Security
3001 * Potential buffer-overflow for ssl_read_record() (independently found by
3002 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
3003 * Potential negative value misinterpretation in load_file()
Paul Bakker248fff52013-06-24 19:08:50 +02003004 * Potential heap buffer overflow on large hostname setting
3005
3006= Version 1.1.7 released on 2013-06-19
3007Changes
3008 * HAVEGE random generator disabled by default
3009
3010Bugfix
3011 * x509parse_crt() now better handles PEM error situations
Darryl Green11999bb2018-03-13 15:22:58 +00003012 * ssl_parse_certificate() now calls x509parse_crt_der() directly
Paul Bakker248fff52013-06-24 19:08:50 +02003013 instead of the x509parse_crt() wrapper that can also parse PEM
3014 certificates
3015 * Fixed values for 2-key Triple DES in cipher layer
3016 * ssl_write_certificate_request() can handle empty ca_chain
3017
3018Security
3019 * A possible DoS during the SSL Handshake, due to faulty parsing of
3020 PEM-encoded certificates has been fixed (found by Jack Lloyd)
3021
3022= Version 1.1.6 released on 2013-03-11
3023Bugfix
3024 * Fixed net_bind() for specified IP addresses on little endian systems
3025
3026Changes
3027 * Allow enabling of dummy error_strerror() to support some use-cases
3028 * Debug messages about padding errors during SSL message decryption are
3029 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
3030
3031Security
3032 * Removed timing differences during SSL message decryption in
3033 ssl_decrypt_buf()
3034 * Removed timing differences due to bad padding from
3035 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
Paul Bakker9d2bb652013-01-25 16:07:49 +01003036 operations
3037
3038= Version 1.1.5 released on 2013-01-16
3039Bugfix
3040 * Fixed MPI assembly for SPARC64 platform
3041 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
3042 * mpi_add_abs() now correctly handles adding short numbers to long numbers
3043 with carry rollover
3044 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
3045 * Prevent reading over buffer boundaries on X509 certificate parsing
3046 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
3047 #52)
3048 * Fixed possible segfault in mpi_shift_r() (found by Manuel
3049 Pégourié-Gonnard)
3050 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
3051 Pégourié-Gonnard)
3052 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
3053 * Memory leak when using RSA_PKCS_V21 operations fixed
3054 * Handle encryption with private key and decryption with public key as per
3055 RFC 2313
3056 * Fixes for MSVC6
3057
3058Security
3059 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
Paul Bakkerd5834bb2012-10-02 14:38:56 +00003060 Vanderbeken)
3061
3062= Version 1.1.4 released on 2012-05-31
3063Bugfix
3064 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
3065 * Fixed potential heap corruption in x509_name allocation
Paul Bakkerfad38932012-05-08 09:04:04 +00003066 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
3067
3068= Version 1.1.3 released on 2012-04-29
3069Bugfix
3070 * Fixed random MPI generation to not generate more size than requested.
3071
3072= Version 1.1.2 released on 2012-04-26
3073Bugfix
3074 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
3075 Hui Dong)
3076
3077Security
3078 * Fixed potential memory corruption on miscrafted client messages (found by
3079 Frama-C team at CEA LIST)
3080 * Fixed generation of DHM parameters to correct length (found by Ruslan
Paul Bakker99955bf2012-01-23 09:31:41 +00003081 Yushchenko)
Paul Bakkerb15b8512012-01-13 13:44:06 +00003082
3083= Version 1.1.1 released on 2012-01-23
3084Bugfix
Paul Bakker2ec0a562012-01-21 05:41:23 +00003085 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
Paul Bakker99955bf2012-01-23 09:31:41 +00003086 (Closes ticket #47, found by Hugo Leisink)
3087 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakkerb15b8512012-01-13 13:44:06 +00003088 * Fixed multiple compiler warnings for VS6 and armcc
Paul Bakker08a50882011-12-22 09:43:57 +00003089 * Fixed bug in CTR_CRBG selftest
Paul Bakker7eb013f2011-10-06 12:37:39 +00003090
3091= Version 1.1.0 released on 2011-12-22
3092Features
Darryl Green11999bb2018-03-13 15:22:58 +00003093 * Added ssl_session_reset() to allow better multi-connection pools of
Paul Bakker490ecc82011-10-06 13:04:09 +00003094 SSL contexts without needing to set all non-connection-specific
3095 data and pointers again. Adapted ssl_server to use this functionality.
Darryl Green11999bb2018-03-13 15:22:58 +00003096 * Added ssl_set_max_version() to allow clients to offer a lower maximum
Paul Bakker03a30d32011-11-11 10:55:02 +00003097 supported version to a server to help buggy server implementations.
3098 (Closes ticket #36)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00003099 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
Paul Bakker6083fd22011-12-03 21:45:14 +00003100 introspection functions (Closes ticket #40)
3101 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Darryl Green11999bb2018-03-13 15:22:58 +00003102 * Added a generic entropy accumulator that provides support for adding
Paul Bakker7eb013f2011-10-06 12:37:39 +00003103 custom entropy sources and added some generic and platform dependent
Paul Bakkerca6f3e22011-10-06 13:11:08 +00003104 entropy sources
3105
Paul Bakkerd246ed32011-10-06 13:18:27 +00003106Changes
3107 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerc4909d92011-10-12 09:52:22 +00003108 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
Paul Bakkerfbc09f32011-10-12 09:56:41 +00003109 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00003110 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerefc30292011-11-10 14:43:23 +00003111 * Added an EXPLICIT tag number parameter to x509_get_ext()
3112 * Added a separate CRL entry extension parsing function
Paul Bakker5e18aed2011-11-15 15:38:45 +00003113 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
3114 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakkercce9d772011-11-18 14:26:47 +00003115 * Changed the defined key-length of DES ciphers in cipher.h to include the
Paul Bakker2e6d5322011-11-18 14:34:17 +00003116 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00003117 * Loads of minimal changes to better support WINCE as a build target
3118 (Credits go to Marco Lizza)
Paul Bakkerfe3256e2011-11-25 12:11:43 +00003119 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
3120 trade-off
Paul Bakkera3d195c2011-11-27 21:07:34 +00003121 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
3122 management (Closes ticket #44)
Paul Bakkera35aa542013-03-06 17:06:21 +01003123 * Changed the used random function pointer to more flexible format. Renamed
Paul Bakker508ad5a2011-12-04 17:09:26 +00003124 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakker6c0ceb32011-12-04 12:24:18 +00003125 a consequence in library code and programs
3126 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakkera35aa542013-03-06 17:06:21 +01003127 * Added permissive certificate parsing to x509parse_crt() and
3128 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakker69e095c2011-12-10 21:55:01 +00003129 encountering a parse-error. Beware that the meaning of return values has
Paul Bakkerca6f3e22011-10-06 13:11:08 +00003130 changed!
Paul Bakkerfa1c5922011-10-06 14:18:49 +00003131 * All error codes are now negative. Even on mermory failures and IO errors.
3132
3133Bugfix
Paul Bakker3329d1f2011-10-12 09:55:01 +00003134 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
3135 ticket #37)
Paul Bakkercebdf172011-11-11 15:01:31 +00003136 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
3137 before version numbers
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00003138 * Allowed X509 key usage parsing to accept 4 byte values instead of the
3139 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker03c7c252011-11-25 12:37:37 +00003140 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
3141 smaller than the hash length. (Closes ticket #41)
Paul Bakker44637402011-11-26 09:23:07 +00003142 * If certificate serial is longer than 32 octets, serial number is now
Paul Bakker4f5ae802011-12-04 22:10:28 +00003143 appended with '....' after first 28 octets
Paul Bakkerc50132d2011-12-05 14:38:36 +00003144 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00003145 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerfa1c5922011-10-06 14:18:49 +00003146 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakker968bc982011-07-27 17:03:00 +00003147 certificates and CRLs
Paul Bakker343a8702011-06-09 14:27:58 +00003148
3149= Version 1.0.0 released on 2011-07-27
Paul Bakker7bc05ff2011-08-09 10:30:36 +00003150Features
Paul Bakker343a8702011-06-09 14:27:58 +00003151 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker42e59812011-06-09 15:55:41 +00003152 * Added rsa_encrypt and rsa_decrypt simple example programs.
3153
3154Changes
3155 * The generic cipher and message digest layer now have normal error
Paul Bakker887bd502011-06-08 13:10:54 +00003156 codes instead of integers
3157
3158Bugfix
3159 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
Paul Bakker828acb22011-05-27 09:25:42 +00003160 #18)
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00003161
3162= Version 0.99-pre5 released on 2011-05-26
3163Features
Paul Bakkera35aa542013-03-06 17:06:21 +01003164 * Added additional Cipher Block Modes to symmetric ciphers
Paul Bakker335db3f2011-04-25 15:28:35 +00003165 (AES CTR, Camellia CTR, XTEA CBC) including the option to
3166 enable and disable individual modes when needed
Paul Bakker9d781402011-05-09 16:17:09 +00003167 * Functions requiring File System functions can now be disabled
3168 by undefining POLARSSL_FS_IO
Paul Bakker2f5947e2011-05-18 15:47:11 +00003169 * A error_strerror function() has been added to translate between
3170 error codes and their description.
Paul Bakker1496d382011-05-23 12:07:29 +00003171 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00003172 functions.
Paul Bakker23986e52011-04-24 08:57:21 +00003173 * Added ssl_mail_client and ssl_fork_server as example programs.
3174
3175Changes
Paul Bakkera35aa542013-03-06 17:06:21 +01003176 * Major argument / variable rewrite. Introduced use of size_t
3177 instead of int for buffer lengths and loop variables for
Paul Bakker6c591fa2011-05-05 11:49:20 +00003178 better unsigned / signed use. Renamed internal bigint types
3179 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker9d781402011-05-09 16:17:09 +00003180 * mpi_init() and mpi_free() now only accept a single MPI
3181 argument and do not accept variable argument lists anymore.
Paul Bakkera35aa542013-03-06 17:06:21 +01003182 * The error codes have been remapped and combining error codes
Paul Bakker831a7552011-05-18 13:32:51 +00003183 is now done with a PLUS instead of an OR as error codes
3184 used are negative.
Paul Bakkera35aa542013-03-06 17:06:21 +01003185 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
3186 net_recv() now returns 0 on EOF instead of
3187 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
3188 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
Paul Bakker831a7552011-05-18 13:32:51 +00003189 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
3190 after the handshake.
Paul Bakkera35aa542013-03-06 17:06:21 +01003191 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
Paul Bakker23986e52011-04-24 08:57:21 +00003192 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakker3efa5752011-04-01 12:23:26 +00003193 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker9dcc3222011-03-08 14:16:06 +00003194
3195= Version 0.99-pre4 released on 2011-04-01
3196Features
Paul Bakkere77db2e2011-03-25 14:01:32 +00003197 * Added support for PKCS#1 v2.1 encoding and thus support
3198 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakker287781a2011-03-26 13:18:49 +00003199 * Reading of Public Key files incorporated into default x509
3200 functionality as well.
Paul Bakker9dcc3222011-03-08 14:16:06 +00003201 * Added mpi_fill_random() for centralized filling of big numbers
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00003202 with random data (Fixed ticket #10)
Hanno Becker01a0e072017-07-26 11:49:40 +01003203
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00003204Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01003205 * Debug print of MPI now removes leading zero octets and
Paul Bakker98675492011-03-26 13:17:12 +00003206 displays actual bit size of the value.
Paul Bakkera35aa542013-03-06 17:06:21 +01003207 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00003208 does not zeroize memory in advance anymore. Use rsa_init()
3209 before parsing a key or keyfile!
3210
3211Bugfix
Paul Bakkera35aa542013-03-06 17:06:21 +01003212 * Debug output of MPI's now the same independent of underlying
Paul Bakker1fd00bf2011-03-14 20:50:15 +00003213 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
3214 Kiilerich and Mihai Militaru)
Paul Bakkere77db2e2011-03-25 14:01:32 +00003215 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
3216 #18, found by Nikolay Epifanov)
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00003217 * Fixed proper handling of RSASSA-PSS verification with variable
Paul Bakker345a6fe2011-02-28 21:20:02 +00003218 length salt lengths
3219
Paul Bakker96743fc2011-02-12 14:30:57 +00003220= Version 0.99-pre3 released on 2011-02-28
3221This release replaces version 0.99-pre2 which had possible copyright issues.
3222Features
Paul Bakkera9507c02011-02-12 15:27:28 +00003223 * Parsing PEM private keys encrypted with DES and AES
3224 are now supported as well (Fixes ticket #5)
Paul Bakker96743fc2011-02-12 14:30:57 +00003225 * Added crl_app program to allow easy reading and
3226 printing of X509 CRLs from file
Hanno Becker01a0e072017-07-26 11:49:40 +01003227
Paul Bakker96743fc2011-02-12 14:30:57 +00003228Changes
Paul Bakkera35aa542013-03-06 17:06:21 +01003229 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00003230 ticket #13). Also possible to remove PEM support for
Paul Bakker400ff6f2011-02-20 10:40:16 +00003231 systems only using DER encoding
3232
3233Bugfixes
3234 * Corrected parsing of UTCTime dates before 1990 and
Darryl Green11999bb2018-03-13 15:22:58 +00003235 after 1950
Paul Bakker400ff6f2011-02-20 10:40:16 +00003236 * Support more exotic OID's when parsing certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00003237 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00003238 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00003239 certificates (found by Mads Kiilerich)
3240 * Replaced the expired test certificates
Paul Bakkera35aa542013-03-06 17:06:21 +01003241 * Do not bail out if no client certificate specified. Try
Paul Bakker400ff6f2011-02-20 10:40:16 +00003242 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakker345a6fe2011-02-28 21:20:02 +00003243 found by Boris Krasnovskiy)
3244
3245Security fixes
Paul Bakkera35aa542013-03-06 17:06:21 +01003246 * Fixed a possible Man-in-the-Middle attack on the
Paul Bakker345a6fe2011-02-28 21:20:02 +00003247 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakker9fc46592011-01-30 16:59:02 +00003248 Subreption LLC)
Paul Bakker37ca75d2011-01-06 12:28:03 +00003249
Paul Bakkerb63b0af2011-01-13 17:54:59 +00003250= Version 0.99-pre1 released on 2011-01-30
3251Features
Paul Bakker1b57b062011-01-06 15:48:19 +00003252Note: Most of these features have been donated by Fox-IT
Paul Bakker74111d32011-01-15 16:57:55 +00003253 * Added Doxygen source code documentation parts
Paul Bakker76fd75a2011-01-16 21:12:10 +00003254 * Added reading of DHM context from memory and file
3255 * Improved X509 certificate parsing to include extended
3256 certificate fields, including Key Usage
Paul Bakker1f87fb62011-01-15 17:32:24 +00003257 * Improved certificate verification and verification
Paul Bakker72f62662011-01-16 21:27:44 +00003258 against the available CRLs
3259 * Detection for DES weak keys and parity bits added
3260 * Improvements to support integration in other
3261 applications:
3262 + Added generic message digest and cipher wrapper
3263 + Improved information about current capabilities,
3264 status, objects and configuration
Darryl Green11999bb2018-03-13 15:22:58 +00003265 + Added verification callback on certificate chain
Paul Bakker43b7e352011-01-18 15:27:19 +00003266 verification to allow external blacklisting
3267 + Additional example programs to show usage
Paul Bakker37ca75d2011-01-06 12:28:03 +00003268 * Added support for PKCS#11 through the use of the
Paul Bakkerb6194992011-01-16 21:40:22 +00003269 libpkcs11-helper library
3270
3271Changes
Paul Bakkere3166ce2011-01-27 17:40:50 +00003272 * x509parse_time_expired() checks time in addition to
3273 the existing date check
Paul Bakkera35aa542013-03-06 17:06:21 +01003274 * The ciphers member of ssl_context and the cipher member
3275 of ssl_session have been renamed to ciphersuites and
3276 ciphersuite respectively. This clarifies the difference
Paul Bakkerb6194992011-01-16 21:40:22 +00003277 with the generic cipher layer and is better naming
Paul Bakker99ed6782011-01-05 14:48:42 +00003278 altogether
3279
3280= Version 0.14.0 released on 2010-08-16
3281Features
3282 * Added support for SSL_EDH_RSA_AES_128_SHA and
3283 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
3284 * Added compile-time and run-time version information
3285 * Expanded ssl_client2 arguments for more flexibility
3286 * Added support for TLS v1.1
3287
3288Changes
3289 * Made Makefile cleaner
Paul Bakkera35aa542013-03-06 17:06:21 +01003290 * Removed dependency on rand() in rsa_pkcs1_encrypt().
3291 Now using random fuction provided to function and
Paul Bakker99ed6782011-01-05 14:48:42 +00003292 changed the prototype of rsa_pkcs1_encrypt(),
3293 rsa_init() and rsa_gen_key().
3294 * Some SSL defines were renamed in order to avoid
3295 future confusion
3296
3297Bug fixes
3298 * Fixed CMake out of source build for tests (found by
3299 kkert)
3300 * rsa_check_private() now supports PKCS1v2 keys as well
3301 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
3302 generator
3303
3304= Version 0.13.1 released on 2010-03-24
3305Bug fixes
3306 * Fixed Makefile in library that was mistakenly merged
3307 * Added missing const string fixes
3308
3309= Version 0.13.0 released on 2010-03-21
3310Features
3311 * Added option parsing for host and port selection to
3312 ssl_client2
3313 * Added support for GeneralizedTime in X509 parsing
3314 * Added cert_app program to allow easy reading and
3315 printing of X509 certificates from file or SSL
3316 connection.
3317
3318Changes
3319 * Added const correctness for main code base
3320 * X509 signature algorithm determination is now
3321 in a function to allow easy future expansion
Paul Bakker60b1d102013-10-29 10:02:51 +01003322 * Changed symmetric cipher functions to
Paul Bakker99ed6782011-01-05 14:48:42 +00003323 identical interface (returning int result values)
3324 * Changed ARC4 to use separate input/output buffer
3325 * Added reset function for HMAC context as speed-up
3326 for specific use-cases
3327
3328Bug fixes
3329 * Fixed bug resulting in failure to send the last
3330 certificate in the chain in ssl_write_certificate() and
3331 ssl_write_certificate_request() (found by fatbob)
3332 * Added small fixes for compiler warnings on a Mac
3333 (found by Frank de Brabander)
3334 * Fixed algorithmic bug in mpi_is_prime() (found by
3335 Smbat Tonoyan)
3336
3337= Version 0.12.1 released on 2009-10-04
3338Changes
3339 * Coverage test definitions now support 'depends_on'
3340 tagging system.
3341 * Tests requiring specific hashing algorithms now honor
3342 the defines.
3343
3344Bug fixes
3345 * Changed typo in #ifdef in x509parse.c (found
3346 by Eduardo)
3347
3348= Version 0.12.0 released on 2009-07-28
3349Features
3350 * Added CMake makefiles as alternative to regular Makefiles.
3351 * Added preliminary Code Coverage tests for AES, ARC4,
3352 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
3353 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
3354 and X509parse.
3355
3356Changes
3357 * Error codes are not (necessarily) negative. Keep
3358 this is mind when checking for errors.
3359 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
3360 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
3361 * Changed interface for AES and Camellia setkey functions
3362 to indicate invalid key lengths.
3363
3364Bug fixes
3365 * Fixed include location of endian.h on FreeBSD (found by
3366 Gabriel)
3367 * Fixed include location of endian.h and name clash on
3368 Apples (found by Martin van Hensbergen)
3369 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
Hanno Becker01a0e072017-07-26 11:49:40 +01003370 required HMAC ipad and opad variables are not cleared.
Paul Bakker99ed6782011-01-05 14:48:42 +00003371 (found by code coverage tests)
3372 * Prevented use of long long in bignum if
3373 POLARSSL_HAVE_LONGLONG not defined (found by Giles
3374 Bathgate).
3375 * Fixed incorrect handling of negative strings in
3376 mpi_read_string() (found by code coverage tests).
3377 * Fixed segfault on handling empty rsa_context in
3378 rsa_check_pubkey() and rsa_check_privkey() (found by
3379 code coverage tests).
3380 * Fixed incorrect handling of one single negative input
3381 value in mpi_add_abs() (found by code coverage tests).
3382 * Fixed incorrect handling of negative first input
3383 value in mpi_sub_abs() (found by code coverage tests).
3384 * Fixed incorrect handling of negative first input
3385 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
3386 change also affects mpi_write_string() (found by code
3387 coverage tests).
3388 * Corrected is_prime() results for 0, 1 and 2 (found by
3389 code coverage tests).
3390 * Fixed Camellia and XTEA for 64-bit Windows systems.
3391
3392= Version 0.11.1 released on 2009-05-17
3393 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
3394 SHA-512 in rsa_pkcs1_sign()
3395
3396= Version 0.11.0 released on 2009-05-03
3397 * Fixed a bug in mpi_gcd() so that it also works when both
3398 input numbers are even and added testcases to check
3399 (found by Pierre Habouzit).
3400 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
3401 one way hash functions with the PKCS#1 v1.5 signing and
3402 verification.
3403 * Fixed minor bug regarding mpi_gcd located within the
3404 POLARSSL_GENPRIME block.
3405 * Fixed minor memory leak in x509parse_crt() and added better
3406 handling of 'full' certificate chains (found by Mathias
3407 Olsson).
3408 * Centralized file opening and reading for x509 files into
3409 load_file()
3410 * Made definition of net_htons() endian-clean for big endian
Hanno Becker01a0e072017-07-26 11:49:40 +01003411 systems (Found by Gernot).
Paul Bakker99ed6782011-01-05 14:48:42 +00003412 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
3413 padlock and timing code.
3414 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
3415 responsible for crashes and unwanted behaviour.
3416 * Added support for Certificate Revocation List (CRL) parsing.
3417 * Added support for CRL revocation to x509parse_verify() and
3418 SSL/TLS code.
3419 * Fixed compatibility of XTEA and Camellia on a 64-bit system
3420 (found by Felix von Leitner).
3421
3422= Version 0.10.0 released on 2009-01-12
3423 * Migrated XySSL to PolarSSL
3424 * Added XTEA symmetric cipher
3425 * Added Camellia symmetric cipher
3426 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
3427 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
3428 * Fixed dangerous bug that can cause a heap overflow in
3429 rsa_pkcs1_decrypt (found by Christophe Devine)
3430
3431================================================================
3432XySSL ChangeLog
3433
3434= Version 0.9 released on 2008-03-16
3435
3436 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
3437 * Enabled support for large files by default in aescrypt2.c
3438 * Preliminary openssl wrapper contributed by David Barrett
3439 * Fixed a bug in ssl_write() that caused the same payload to
3440 be sent twice in non-blocking mode when send returns EAGAIN
3441 * Fixed ssl_parse_client_hello(): session id and challenge must
3442 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
3443 * Added user-defined callback debug function (Krystian Kolodziej)
3444 * Before freeing a certificate, properly zero out all cert. data
3445 * Fixed the "mode" parameter so that encryption/decryption are
3446 not swapped on PadLock; also fixed compilation on older versions
Antonin Décimo36e89b52019-01-23 15:24:37 +01003447 of gcc (bug reported by David Barrett)
Paul Bakker99ed6782011-01-05 14:48:42 +00003448 * Correctly handle the case in padlock_xcryptcbc() when input or
3449 output data is non-aligned by falling back to the software
3450 implementation, as VIA Nehemiah cannot handle non-aligned buffers
3451 * Fixed a memory leak in x509parse_crt() which was reported by Greg
3452 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
3453 Matthew Page who reported several bugs
3454 * Fixed x509_get_ext() to accept some rare certificates which have
3455 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
3456 * Added support on the client side for the TLS "hostname" extension
3457 (patch contributed by David Patino)
3458 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
3459 string is passed as the CN (bug reported by spoofy)
3460 * Added an option to enable/disable the BN assembly code
3461 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
3462 * Disabled obsolete hash functions by default (MD2, MD4); updated
3463 selftest and benchmark to not test ciphers that have been disabled
3464 * Updated x509parse_cert_info() to correctly display byte 0 of the
3465 serial number, setup correct server port in the ssl client example
3466 * Fixed a critical denial-of-service with X.509 cert. verification:
3467 peer may cause xyssl to loop indefinitely by sending a certificate
3468 for which the RSA signature check fails (bug reported by Benoit)
3469 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
3470 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
3471 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
3472 * Modified ssl_parse_client_key_exchange() to protect against
3473 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
3474 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
3475 * Updated rsa_gen_key() so that ctx->N is always nbits in size
3476 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
3477 David Barrett and Dusan Semen
3478
3479= Version 0.8 released on 2007-10-20
3480
3481 * Modified the HMAC functions to handle keys larger
3482 than 64 bytes, thanks to Stephane Desneux and gary ng
3483 * Fixed ssl_read_record() to properly update the handshake
3484 message digests, which fixes IE6/IE7 client authentication
3485 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
3486 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
3487 * Added user-defined callbacks for handling I/O and sessions
3488 * Added lots of debugging output in the SSL/TLS functions
3489 * Added preliminary X.509 cert. writing by Pascal Vizeli
3490 * Added preliminary support for the VIA PadLock routines
3491 * Added AES-CFB mode of operation, contributed by chmike
3492 * Added an SSL/TLS stress testing program (ssl_test.c)
3493 * Updated the RSA PKCS#1 code to allow choosing between
3494 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
3495 * Updated ssl_read() to skip 0-length records from OpenSSL
3496 * Fixed the make install target to comply with *BSD make
3497 * Fixed a bug in mpi_read_binary() on 64-bit platforms
3498 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
3499 * Fixed a long standing memory leak in mpi_is_prime()
3500 * Replaced realloc with malloc in mpi_grow(), and set
3501 the sign of zero as positive in mpi_init() (reported
3502 by Jonathan M. McCune)
3503
3504= Version 0.7 released on 2007-07-07
3505
3506 * Added support for the MicroBlaze soft-core processor
3507 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
3508 connections from being established with non-blocking I/O
3509 * Fixed a couple bugs in the VS6 and UNIX Makefiles
3510 * Fixed the "PIC register ebx clobbered in asm" bug
3511 * Added HMAC starts/update/finish support functions
3512 * Added the SHA-224, SHA-384 and SHA-512 hash functions
3513 * Fixed the net_set_*block routines, thanks to Andreas
3514 * Added a few demonstration programs: md5sum, sha1sum,
3515 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
3516 * Added new bignum import and export helper functions
3517 * Rewrote README.txt in program/ssl/ca to better explain
3518 how to create a test PKI
3519
3520= Version 0.6 released on 2007-04-01
3521
3522 * Ciphers used in SSL/TLS can now be disabled at compile
3523 time, to reduce the memory footprint on embedded systems
3524 * Added multiply assembly code for the TriCore and modified
3525 havege_struct for this processor, thanks to David Patiño
3526 * Added multiply assembly code for 64-bit PowerPCs,
3527 thanks to Peking University and the OSU Open Source Lab
3528 * Added experimental support of Quantum Cryptography
3529 * Added support for autoconf, contributed by Arnaud Cornet
3530 * Fixed "long long" compilation issues on IA-64 and PPC64
3531 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
3532 was not being correctly defined on ARM and MIPS
3533
3534= Version 0.5 released on 2007-03-01
3535
3536 * Added multiply assembly code for SPARC and Alpha
3537 * Added (beta) support for non-blocking I/O operations
3538 * Implemented session resuming and client authentication
3539 * Fixed some portability issues on WinCE, MINIX 3, Plan9
3540 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
3541 * Improved the performance of the EDH key exchange
3542 * Fixed a bug that caused valid packets with a payload
3543 size of 16384 bytes to be rejected
3544
3545= Version 0.4 released on 2007-02-01
3546
3547 * Added support for Ephemeral Diffie-Hellman key exchange
3548 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
3549 * Various improvement to the modular exponentiation code
3550 * Rewrote the headers to generate the API docs with doxygen
3551 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
3552 generated) and in ssl_parse_client_hello (max. client
3553 version was not properly set), thanks to Didier Rebeix
3554 * Fixed another bug in ssl_parse_client_hello: clients with
3555 cipherlists larger than 96 bytes were incorrectly rejected
3556 * Fixed a couple memory leak in x509_read.c
3557
3558= Version 0.3 released on 2007-01-01
3559
3560 * Added server-side SSLv3 and TLSv1.0 support
3561 * Multiple fixes to enhance the compatibility with g++,
Paul Bakker60b1d102013-10-29 10:02:51 +01003562 thanks to Xosé Antón Otero Ferreira
Paul Bakker99ed6782011-01-05 14:48:42 +00003563 * Fixed a bug in the CBC code, thanks to dowst; also,
3564 the bignum code is no longer dependent on long long
3565 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
3566 * Updated timing.c for improved compatibility with i386
3567 and 486 processors, thanks to Arnaud Cornet
3568
3569= Version 0.2 released on 2006-12-01
3570
3571 * Updated timing.c to support ARM and MIPS arch
3572 * Updated the MPI code to support 8086 on MSVC 1.5
3573 * Added the copyright notice at the top of havege.h
3574 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
3575 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
3576 * Fixed a bug reported by Torsten Lauter in ssl_read_record
3577 * Fixed a bug in rsa_check_privkey that would wrongly cause
3578 valid RSA keys to be dismissed (thanks to oldwolf)
3579 * Fixed a bug in mpi_is_prime that caused some primes to fail
3580 the Miller-Rabin primality test
3581
3582 I'd also like to thank Younès Hafri for the CRUX linux port,
3583 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
3584 who maintains the Debian package :-)
Paul Bakker5121ce52009-01-03 21:22:43 +00003585
3586= Version 0.1 released on 2006-11-01