blob: 965876f2a87edd427be25bc6c35fde4c2ec8ebab [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 Amerod5d01a02019-03-26 14:50:06 +00003= mbed TLS x.x.x branch released xxxx-xx-xx
4
Jaeden Ameroc73fde72019-03-27 14:50:21 +00005Features
6 * Add the Any Policy certificate policy oid, as defined in
7 rfc 5280 section 4.2.1.4.
Jaeden Amerod192ba42019-04-05 14:15:40 +01008 * It is now possible to use NIST key wrap mode via the mbedtls_cipher API.
9 Contributed by Jack Lloyd and Fortanix Inc.
Ron Eldorb6dc1052019-04-01 18:12:23 +030010 * Add the Wi-SUN Field Area Network (FAN) device extended key usage.
Ron Eldore8234162019-04-03 09:45:07 +030011 * Add the oid certificate policy x509 extension.
Jack Lloyd5ed7fff2019-05-06 12:15:44 -040012 * It is now possible to perform RSA PKCS v1.5 signatures with RIPEMD-160 digest.
13 Contributed by Jack Lloyd and Fortanix Inc.
Ron Eldor51c45072019-05-15 17:49:54 +030014 * Extend the MBEDTLS_SSL_EXPORT_KEYS to export the handshake randbytes,
Ron Eldoraa947f12019-05-15 12:28:21 +030015 and the used tls-prf.
16 * Add public API for tls-prf function, according to requested enum.
Ron Eldor2e06a9f2019-05-15 15:14:46 +030017 * Add support for parsing otherName entries in the Subject Alternative Name
18 X.509 certificate extension, specifically type hardware module name,
19 as defined in RFC 4108 section 5.
20 * Add support for parsing certificate policies extension, as defined in
21 RFC 5280 section 4.2.1.4. Currently, only the "Any Policy" policy is
22 supported.
Ron Eldore2695372019-05-16 11:52:57 +030023 * List all SAN types in the subject_alt_names field of the certificate.
24 Resolves #459.
Hanno Beckerb9355b72019-05-24 10:23:43 +010025 * Add support for draft-05 of the Connection ID extension, as specified
26 in https://tools.ietf.org/html/draft-ietf-tls-dtls-connection-id-05.
27 The Connection ID extension allows to keep DTLS connections beyond the
28 lifetime of the underlying transport by adding a connection identifier
29 to the DTLS record header. This identifier can be used to associated an
30 incoming record with the correct connection data even after the peer has
31 changed its IP or port. The feature is enabled at compile-time by setting
32 MBEDTLS_SSL_DTLS_CONNECTION_ID (disabled by default), and at run-time
33 through the new APIs mbedtls_ssl_conf_cid() and mbedtls_ssl_set_cid().
Jaeden Ameroc73fde72019-03-27 14:50:21 +000034
Jaeden Amerod5d01a02019-03-26 14:50:06 +000035Bugfix
36 * Fix private key DER output in the key_app_writer example. File contents
37 were shifted by one byte, creating an invalid ASN.1 tag. Fixed by
38 Christian Walther in #2239.
Jaeden Amero1b86e4c2019-04-05 13:47:06 +010039 * Fix potential memory leak in X.509 self test. Found and fixed by
40 Junhwan Park, #2106.
Jaeden Amero3d814472019-04-05 13:53:14 +010041 * Reduce stack usage of hkdf tests. Fixes #2195.
Jaeden Amero62ab1f92019-04-05 14:08:49 +010042 * Fix 1-byte buffer overflow in mbedtls_mpi_write_string() when
Jaeden Amerod037ad62019-04-08 11:23:50 +010043 used with negative inputs. Found by Guido Vranken in #2404. Credit to
44 OSS-Fuzz.
Jaeden Amerod192ba42019-04-05 14:15:40 +010045 * Fix bugs in the AEAD test suite which would be exposed by ciphers which
46 either used both encrypt and decrypt key schedules, or which perform padding.
47 GCM and CCM were not affected. Fixed by Jack Lloyd.
Jaeden Amerobc5de0f2019-04-05 14:23:48 +010048 * Fix incorrect default port number in ssl_mail_client example's usage.
49 Found and fixed by irwir. #2337
Peter Kolbus2ae29ba2019-04-14 14:01:13 -050050 * Add psa_util.h to test/cpp_dummy_build to fix build_default_make_gcc_and_cxx.
51 Fixed by Peter Kolbus (Garmin). #2579
Jaeden Amero3956a842019-04-24 11:17:21 +010052 * Add missing parentheses around parameters in the definition of the
53 public macro MBEDTLS_X509_ID_FLAG. This could lead to invalid evaluation
54 in case operators binding less strongly than subtraction were used
55 for the parameter.
Jaeden Amero1439b092019-04-24 11:20:31 +010056 * Add a check for MBEDTLS_X509_CRL_PARSE_C in ssl_server2, guarding the crl
57 sni entry parameter. Reported by inestlerode in #560.
Ron Eldor5aebeeb2019-05-22 16:41:21 +030058 * Set the next sequence of the subject_alt_name to NULL when deleting
59 sequence on failure. Found and fix suggested by Philippe Antoine.
60 Credit to OSS-Fuzz.
Hanno Becker3c03a882019-06-04 10:27:43 +010061 * Fix missing bounds checks in X.509 parsing functions that could
62 lead to successful parsing of ill-formed X.509 CRTs. Fixes #2437.
63 * Fix multiple X.509 functions previously returning ASN.1 low-level error
64 codes to always wrap these codes into X.509 high level error codes before
65 returning. Fixes #2431.
Jaeden Amerod5d01a02019-03-26 14:50:06 +000066
Ron Eldoraa947f12019-05-15 12:28:21 +030067API Changes
Ron Eldor51c45072019-05-15 17:49:54 +030068 * Extend the MBEDTLS_SSL_EXPORT_KEYS to export the handshake randbytes,
Ron Eldoraa947f12019-05-15 12:28:21 +030069 and the used tls-prf.
70 * Add public API for tls-prf function, according to requested enum.
Hanno Becker666f60d2018-12-05 16:52:37 +000071 * Add DER-encoded test CRTs to library/certs.c, allowing
72 the example programs ssl_server2 and ssl_client2 to be run
73 if MBEDTLS_FS_IO and MBEDTLS_PEM_PARSE_C are unset. Fixes #2254.
Ron Eldoraa947f12019-05-15 12:28:21 +030074
Jaeden Amerod5d01a02019-03-26 14:50:06 +000075Changes
76 * Server's RSA certificate in certs.c was SHA-1 signed. In the default
77 mbedTLS configuration only SHA-2 signed certificates are accepted.
78 This certificate is used in the demo server programs, which lead the
79 client programs to fail at the peer's certificate verification
80 due to an unacceptable hash signature. The certificate has been
81 updated to one that is SHA-256 signed. Fix contributed by
82 Illya Gerasymchuk.
83 * Return from various debugging routines immediately if the
84 provided SSL context is unset.
85 * Remove dead code from bignum.c in the default configuration.
86 Found by Coverity, reported and fixed by Peter Kolbus (Garmin). Fixes #2309.
87 * Add test for minimal value of MBEDTLS_MPI_WINDOW_SIZE to all.sh.
88 Contributed by Peter Kolbus (Garmin).
k-stachowiak35d3ec02019-05-13 12:11:49 +020089 * Change wording in the `mbedtls_ssl_conf_max_frag_len()`'s documentation to
90 improve clarity. Fixes #2258.
Hanno Becker136512b2019-05-30 11:16:02 +010091 * Replace multiple uses of MD2 by SHA-256 in X.509 test suite. Fixes #821.
Jaeden Amerod5d01a02019-03-26 14:50:06 +000092
Jaeden Amero3f8d7842019-03-19 16:11:28 +000093= mbed TLS 2.17.0 branch released 2019-03-19
Andrzej Kurekc470b6b2019-01-31 08:20:20 -050094
Hanno Beckerac4172c2019-01-31 09:27:04 +000095Features
96 * Add a new X.509 API call `mbedtls_x509_parse_der_nocopy()`
97 which allows copy-less parsing of DER encoded X.509 CRTs,
98 at the cost of additional lifetime constraints on the input
99 buffer, but at the benefit of reduced RAM consumption.
Andres Amaya Garciace049512019-02-20 10:00:03 +0000100 * Add a new function mbedtls_asn1_write_named_bitstring() to write ASN.1
101 named bitstring in DER as required by RFC 5280 Appendix B.
Andres Amaya Garcia4a512282018-10-30 18:21:41 +0000102 * Add MBEDTLS_REMOVE_3DES_CIPHERSUITES to allow removing 3DES ciphersuites
Andres Amaya Garcia22a89052018-11-26 20:57:49 +0000103 from the default list (enabled by default). See
104 https://sweet32.info/SWEET32_CCS16.pdf.
Hanno Beckerac4172c2019-01-31 09:27:04 +0000105
106API Changes
107 * Add a new X.509 API call `mbedtls_x509_parse_der_nocopy()`.
108 See the Features section for more information.
Hanno Beckere31505d2019-02-07 13:42:45 +0000109 * Allow to opt in to the removal the API mbedtls_ssl_get_peer_cert()
110 for the benefit of saving RAM, by disabling the new compile-time
111 option MBEDTLS_SSL_KEEP_PEER_CERTIFICATE (enabled by default for
112 API stability). Disabling this option makes mbedtls_ssl_get_peer_cert()
113 always return NULL, and removes the peer_cert field from the
114 mbedtls_ssl_session structure which otherwise stores the peer's
115 certificate.
Hanno Beckerac4172c2019-01-31 09:27:04 +0000116
Gilles Peskineccf8ba02018-11-07 22:39:16 +0100117Security
118 * Make mbedtls_ecdh_get_params return an error if the second key
119 belongs to a different group from the first. Before, if an application
120 passed keys that belonged to different group, the first key's data was
121 interpreted according to the second group, which could lead to either
122 an error or a meaningless output from mbedtls_ecdh_get_params. In the
123 latter case, this could expose at most 5 bits of the private key.
124
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500125Bugfix
126 * Fix a compilation issue with mbedtls_ecp_restart_ctx not being defined
127 when MBEDTLS_ECP_ALT is defined. Reported by jwhui. Fixes #2242.
128 * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined.
129 Raised as a comment in #1996.
130 * Reduce the stack consumption of mbedtls_mpi_fill_random() which could
131 previously lead to a stack overflow on constrained targets.
132 * Add `MBEDTLS_SELF_TEST` for the mbedtls_self_test functions
133 in the header files, which missed the precompilation check. #971
134 * Fix returning the value 1 when mbedtls_ecdsa_genkey failed.
135 * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326.
136 * Remove the mbedtls namespacing from the header file, to fix a "file not found"
137 build error. Fixed by Haijun Gu #2319.
Hanno Becker1b6d2b22019-01-10 09:22:16 +0000138 * Fix signed-to-unsigned integer conversion warning
139 in X.509 module. Fixes #2212.
Ron Eldor8a6917d2018-11-27 10:33:38 +0200140 * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
141 Fixes #2190.
Peter Kolbus995d5c12019-02-03 08:41:41 -0600142 * Fix false failure in all.sh when backup files exist in include/mbedtls
143 (e.g. config.h.bak). Fixed by Peter Kolbus (Garmin) #2407.
Andres Amaya Garciad588ff72018-09-26 10:59:20 +0100144 * Ensure that unused bits are zero when writing ASN.1 bitstrings when using
145 mbedtls_asn1_write_bitstring().
146 * Fix issue when writing the named bitstrings in KeyUsage and NsCertType
147 extensions in CSRs and CRTs that caused these bitstrings to not be encoded
148 correctly as trailing zeroes were not accounted for as unused bits in the
149 leading content octet. Fixes #1610.
Simon Butcher41f95192018-12-01 18:42:47 +0000150
151Changes
Hanno Beckerbd9d51d2019-01-30 15:14:21 +0000152 * Reduce RAM consumption during session renegotiation by not storing
153 the peer CRT chain and session ticket twice.
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500154 * Include configuration file in all header files that use configuration,
155 instead of relying on other header files that they include.
156 Inserted as an enhancement for #1371
157 * Add support for alternative CSR headers, as used by Microsoft and defined
158 in RFC 7468. Found by Michael Ernst. Fixes #767.
Andrzej Kurek8764ccc2019-02-05 04:57:13 -0500159 * Correct many misspellings. Fixed by MisterDA #2371.
160 * Provide an abstraction of vsnprintf to allow alternative implementations
161 for platforms that don't provide it. Based on contributions by Joris Aerts
162 and Nathaniel Wesley Filardo.
163 * Fix clobber list in MIPS assembly for large integer multiplication.
164 Previously, this could lead to functionally incorrect assembly being
165 produced by some optimizing compilers, showing up as failures in
166 e.g. RSA or ECC signature operations. Reported in #1722, fix suggested
167 by Aurelien Jarno and submitted by Jeffrey Martin.
k-stachowiakc5a4a132019-02-05 09:11:58 +0100168 * Reduce the complexity of the timing tests. They were assuming more than the
169 underlying OS actually guarantees.
Andres Amaya Garciaaabe52f2018-10-16 22:18:53 +0100170 * Fix configuration queries in ssl-opt.h. #2030
171 * Ensure that ssl-opt.h can be run in OS X. #2029
k-stachowiakcddbd012019-02-19 12:40:34 +0100172 * Re-enable certain interoperability tests in ssl-opt.sh which had previously
173 been disabled for lack of a sufficiently recent version of GnuTLS on the CI.
Andres Amaya Garciaf8dffb32019-02-19 20:14:00 +0000174 * Ciphersuites based on 3DES now have the lowest priority by default when
175 they are enabled.
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500176
177= mbed TLS 2.16.0 branch released 2018-12-21
178
179Features
180 * Add a new config.h option of MBEDTLS_CHECK_PARAMS that enables validation
181 of parameters in the API. This allows detection of obvious misuses of the
182 API, such as passing NULL pointers. The API of existing functions hasn't
183 changed, but requirements on parameters have been made more explicit in
184 the documentation. See the corresponding API documentation for each
185 function to see for which parameter values it is defined. This feature is
186 disabled by default. See its API documentation in config.h for additional
187 steps you have to take when enabling it.
188
189API Changes
190 * The following functions in the random generator modules have been
191 deprecated and replaced as shown below. The new functions change
192 the return type from void to int to allow returning error codes when
193 using MBEDTLS_<MODULE>_ALT for the underlying AES or message digest
194 primitive. Fixes #1798.
195 mbedtls_ctr_drbg_update() -> mbedtls_ctr_drbg_update_ret()
196 mbedtls_hmac_drbg_update() -> mbedtls_hmac_drbg_update_ret()
197 * Extend ECDH interface to enable alternative implementations.
198 * Deprecate error codes of the form MBEDTLS_ERR_xxx_INVALID_KEY_LENGTH for
199 ARIA, CAMELLIA and Blowfish. These error codes will be replaced by
200 the more generic per-module error codes MBEDTLS_ERR_xxx_BAD_INPUT_DATA.
201 * Additional parameter validation checks have been added for the following
202 modules - AES, ARIA, Blowfish, CAMELLIA, CCM, GCM, DHM, ECP, ECDSA, ECDH,
203 ECJPAKE, SHA, Chacha20 and Poly1305, cipher, pk, RSA, and MPI.
204 Where modules have had parameter validation added, existing parameter
205 checks may have changed. Some modules, such as Chacha20 had existing
206 parameter validation whereas other modules had little. This has now been
207 changed so that the same level of validation is present in all modules, and
208 that it is now optional with the MBEDTLS_CHECK_PARAMS flag which by default
209 is off. That means that checks which were previously present by default
210 will no longer be.
211
212New deprecations
213 * Deprecate mbedtls_ctr_drbg_update and mbedtls_hmac_drbg_update
214 in favor of functions that can return an error code.
215
216Bugfix
217 * Fix for Clang, which was reporting a warning for the bignum.c inline
218 assembly for AMD64 targets creating string literals greater than those
219 permitted by the ISO C99 standard. Found by Aaron Jones. Fixes #482.
220 * Fix runtime error in `mbedtls_platform_entropy_poll()` when run
221 through qemu user emulation. Reported and fix suggested by randombit
222 in #1212. Fixes #1212.
223 * Fix an unsafe bounds check when restoring an SSL session from a ticket.
224 This could lead to a buffer overflow, but only in case ticket authentication
225 was broken. Reported and fix suggested by Guido Vranken in #659.
226 * Add explicit integer to enumeration type casts to example program
227 programs/pkey/gen_key which previously led to compilation failure
228 on some toolchains. Reported by phoenixmcallister. Fixes #2170.
229 * Fix double initialization of ECC hardware that made some accelerators
230 hang.
231 * Clarify documentation of mbedtls_ssl_set_own_cert() regarding the absence
232 of check for certificate/key matching. Reported by Attila Molnar, #507.
233
Andrzej Kurek8764ccc2019-02-05 04:57:13 -0500234 = mbed TLS 2.15.1 branch released 2018-11-30
235
236 Changes
237 * Update the Mbed Crypto submodule to version 0.1.0b2.
238
239 = mbed TLS 2.15.0 branch released 2018-11-23
240
241 Features
242 * Add an experimental build option, USE_CRYPTO_SUBMODULE, to enable use of
243 Mbed Crypto as the source of the cryptography implementation.
244 * Add an experimental configuration option, MBEDTLS_PSA_CRYPTO_C, to enable
245 the PSA Crypto API from Mbed Crypto when additionally used with the
246 USE_CRYPTO_SUBMODULE build option.
247
248 Changes
249 * Add unit tests for AES-GCM when called through mbedtls_cipher_auth_xxx()
250 from the cipher abstraction layer. Fixes #2198.
251
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500252= mbed TLS 2.14.1 branch released 2018-11-30
253
254Security
255 * Fix timing variations and memory access variations in RSA PKCS#1 v1.5
256 decryption that could lead to a Bleichenbacher-style padding oracle
257 attack. In TLS, this affects servers that accept ciphersuites based on
258 RSA decryption (i.e. ciphersuites whose name contains RSA but not
259 (EC)DH(E)). Discovered by Eyal Ronen (Weizmann Institute), Robert Gillham
260 (University of Adelaide), Daniel Genkin (University of Michigan),
261 Adi Shamir (Weizmann Institute), David Wong (NCC Group), and Yuval Yarom
262 (University of Adelaide, Data61). The attack is described in more detail
263 in the paper available here: http://cat.eyalro.net/cat.pdf CVE-2018-19608
264 * In mbedtls_mpi_write_binary(), don't leak the exact size of the number
265 via branching and memory access patterns. An attacker who could submit
266 a plaintext for RSA PKCS#1 v1.5 decryption but only observe the timing
267 of the decryption and not its result could nonetheless decrypt RSA
268 plaintexts and forge RSA signatures. Other asymmetric algorithms may
269 have been similarly vulnerable. Reported by Eyal Ronen, Robert Gillham,
270 Daniel Genkin, Adi Shamir, David Wong and Yuval Yarom.
271 * Wipe sensitive buffers on the stack in the CTR_DRBG and HMAC_DRBG
272 modules.
273
274API Changes
275 * The new functions mbedtls_ctr_drbg_update_ret() and
276 mbedtls_hmac_drbg_update_ret() are similar to mbedtls_ctr_drbg_update()
277 and mbedtls_hmac_drbg_update() respectively, but the new functions
278 report errors whereas the old functions return void. We recommend that
279 applications use the new functions.
Andrzej Kurekc470b6b2019-01-31 08:20:20 -0500280
Simon Butcherc1b98922018-11-19 18:31:40 +0000281= mbed TLS 2.14.0 branch released 2018-11-19
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200282
Hanno Beckerd3445da2018-11-02 09:36:45 +0000283Security
Simon Butcher681edee2018-11-07 16:25:38 +0000284 * Fix overly strict DN comparison when looking for CRLs belonging to a
Simon Butcherb35e59d2018-11-19 15:49:26 +0000285 particular CA. This previously led to ignoring CRLs when the CRL's issuer
Simon Butcher681edee2018-11-07 16:25:38 +0000286 name and the CA's subject name differed in their string encoding (e.g.,
287 one using PrintableString and the other UTF8String) or in the choice of
288 upper and lower case. Reported by Henrik Andersson of Bosch GmbH in issue
289 #1784.
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100290 * Fix a flawed bounds check in server PSK hint parsing. In case the
Simon Butcherb35e59d2018-11-19 15:49:26 +0000291 incoming message buffer was placed within the first 64KiB of address
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100292 space and a PSK-(EC)DHE ciphersuite was used, this allowed an attacker
Simon Butcherb35e59d2018-11-19 15:49:26 +0000293 to trigger a memory access up to 64KiB beyond the incoming message buffer,
294 potentially leading to an application crash or information disclosure.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100295 * Fix mbedtls_mpi_is_prime() to use more rounds of probabilistic testing. The
296 previous settings for the number of rounds made it practical for an
297 adversary to construct non-primes that would be erroneously accepted as
298 primes with high probability. This does not have an impact on the
Simon Butcher681edee2018-11-07 16:25:38 +0000299 security of TLS, but can matter in other contexts with numbers chosen
300 potentially by an adversary that should be prime and can be validated.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100301 For example, the number of rounds was enough to securely generate RSA key
302 pairs or Diffie-Hellman parameters, but was insufficient to validate
303 Diffie-Hellman parameters properly.
304 See "Prime and Prejudice" by by Martin R. Albrecht and Jake Massimo and
305 Kenneth G. Paterson and Juraj Somorovsky.
Hanno Beckerd3445da2018-11-02 09:36:45 +0000306
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200307Features
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200308 * Add support for temporarily suspending expensive ECC computations after
Simon Butcherb35e59d2018-11-19 15:49:26 +0000309 some configurable amount of operations. This is intended to be used in
310 constrained, single-threaded systems where ECC is time consuming and can
311 block other operations until they complete. This is disabled by default,
312 but can be enabled by MBEDTLS_ECP_RESTARTABLE at compile time and
313 configured by mbedtls_ecp_set_max_ops() at runtime. It applies to the new
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200314 xxx_restartable functions in ECP, ECDSA, PK and X.509 (CRL not supported
315 yet), and to existing functions in ECDH and SSL (currently only
316 implemented client-side, for ECDHE-ECDSA ciphersuites in TLS 1.2,
317 including client authentication).
Simon Butcher4a865ef2018-10-28 18:00:51 +0000318 * Add support for Arm CPU DSP extensions to accelerate asymmetric key
319 operations. On CPUs where the extensions are available, they can accelerate
320 MPI multiplications used in ECC and RSA cryptography. Contributed by
321 Aurelien Jarno.
Simon Butcherb35e59d2018-11-19 15:49:26 +0000322 * Extend RSASSA-PSS signature to allow a smaller salt size. Previously, PSS
323 signature always used a salt with the same length as the hash, and returned
324 an error if this was not possible. Now the salt size may be up to two bytes
325 shorter. This allows the library to support all hash and signature sizes
326 that comply with FIPS 186-4, including SHA-512 with a 1024-bit key.
Simon Butcher06d80cf2018-11-06 23:46:04 +0000327 * Add support for 128-bit keys in CTR_DRBG. Note that using keys shorter
328 than 256 bits limits the security of generated material to 128 bits.
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +0200329
Simon Butchere51d4b32018-11-09 19:57:53 +0000330API Changes
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000331 * Add a common error code of `MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED` for
332 a feature that is not supported by underlying alternative
333 implementations implementing cryptographic primitives. This is useful for
334 hardware accelerators that don't implement all options or features.
Simon Butchere51d4b32018-11-09 19:57:53 +0000335
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300336New deprecations
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000337 * All module specific errors following the form
338 MBEDTLS_ERR_XXX_FEATURE_UNAVAILABLE that indicate a feature is not
339 supported are deprecated and are now replaced by the new equivalent
340 platform error.
Simon Butcher681edee2018-11-07 16:25:38 +0000341 * All module specific generic hardware acceleration errors following the
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000342 form MBEDTLS_ERR_XXX_HW_ACCEL_FAILED that are deprecated and are replaced
343 by the equivalent plaform error.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100344 * Deprecate the function mbedtls_mpi_is_prime() in favor of
345 mbedtls_mpi_is_prime_ext() which allows specifying the number of
346 Miller-Rabin rounds.
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300347
Simon Butcherb3633822018-07-30 22:10:48 +0100348Bugfix
Simon Butcher2b5be1e2018-10-30 15:55:10 +0000349 * Fix wrong order of freeing in programs/ssl/ssl_server2 example
350 application leading to a memory leak in case both
351 MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set.
352 Fixes #2069.
Simon Butcherc86993e2018-09-27 09:48:54 +0100353 * Fix a bug in the update function for SSL ticket keys which previously
354 invalidated keys of a lifetime of less than a 1s. Fixes #1968.
Simon Butcher1afc7672018-09-27 11:35:19 +0100355 * Fix failure in hmac_drbg in the benchmark sample application, when
356 MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
Hanno Beckerf24c3362018-10-17 14:53:05 +0100357 * Fix a bug in the record decryption routine ssl_decrypt_buf()
358 which lead to accepting properly authenticated but improperly
359 padded records in case of CBC ciphersuites using Encrypt-then-MAC.
Hanno Becker617a3212018-10-05 09:51:36 +0100360 * Fix memory leak and freeing without initialization in the example
361 program programs/x509/cert_write. Fixes #1422.
Simon Butcher681edee2018-11-07 16:25:38 +0000362 * Ignore IV in mbedtls_cipher_set_iv() when the cipher mode is
363 MBEDTLS_MODE_ECB. Found by ezdevelop. Fixes #1091.
Hanno Becker7e1f3be2018-10-15 13:20:28 +0100364 * Zeroize memory used for buffering or reassembling handshake messages
365 after use.
366 * Use `mbedtls_platform_zeroize()` instead of `memset()` for zeroization
367 of sensitive data in the example programs aescrypt2 and crypt_and_hash.
Hanno Beckerf143a782018-11-06 17:43:16 +0000368 * Change the default string format used for various X.509 DN attributes to
369 UTF8String. Previously, the use of the PrintableString format led to
370 wildcards and non-ASCII characters being unusable in some DN attributes.
Simon Butcher681edee2018-11-07 16:25:38 +0000371 Reported by raprepo in #1860 and by kevinpt in #468. Fix contributed by
372 Thomas-Dee.
Hanno Beckere4f965d2018-10-11 10:54:45 +0100373 * Fix compilation failure for configurations which use compile time
374 replacements of standard calloc/free functions through the macros
375 MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO.
376 Reported by ole-de and ddhome2006. Fixes #882, #1642 and #1706.
Simon Butcherc86993e2018-09-27 09:48:54 +0100377
378Changes
Simon Butcherc0514bf2018-09-26 18:07:18 +0100379 * Removed support for Yotta as a build tool.
Simon Butcherc86993e2018-09-27 09:48:54 +0100380 * Add tests for session resumption in DTLS.
Gilles Peskine604ccc62018-07-10 15:55:52 +0200381 * Close a test gap in (D)TLS between the client side and the server side:
382 test the handling of large packets and small packets on the client side
383 in the same way as on the server side.
Simon Butcherddc9e262018-10-27 18:27:41 +0100384 * Change the dtls_client and dtls_server samples to work by default over
385 IPv6 and optionally by a build option over IPv4.
Simon Butcher404aa652018-10-01 14:44:22 +0100386 * Change the use of Windows threading to use Microsoft Visual C++ runtime
387 calls, rather than Win32 API calls directly. This is necessary to avoid
388 conflict with C runtime usage. Found and fixed by irwir.
Simon Butcher681edee2018-11-07 16:25:38 +0000389 * Remember the string format of X.509 DN attributes when replicating
390 X.509 DNs. Previously, DN attributes were always written in their default
391 string format (mostly PrintableString), which could lead to CRTs being
392 created which used PrintableStrings in the issuer field even though the
393 signing CA used UTF8Strings in its subject field; while X.509 compliant,
394 such CRTs were rejected in some applications, e.g. some versions of
395 Firefox, curl and GnuTLS. Reported in #1033 by Moschn. Fix contributed by
396 Thomas-Dee.
Hanno Becker0bb204c2018-10-30 10:08:33 +0000397 * Improve documentation of mbedtls_ssl_get_verify_result().
398 Fixes #517 reported by github-monoculture.
Janos Follath33329372018-09-06 10:41:33 +0100399 * Add MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR flag to mbedtls_mpi_gen_prime() and
400 use it to reduce error probability in RSA key generation to levels mandated
401 by FIPS-186-4.
Simon Butcherc86993e2018-09-27 09:48:54 +0100402
Simon Butcher5d40f672018-09-06 16:24:48 +0100403= mbed TLS 2.13.1 branch released 2018-09-06
Simon Butcherb3633822018-07-30 22:10:48 +0100404
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100405API Changes
Hanno Beckeracef2922018-09-05 16:19:07 +0100406 * Extend the platform module with an abstraction mbedtls_platform_gmtime_r()
Hanno Becker921b76d2018-09-05 16:21:36 +0100407 whose implementation should behave as a thread-safe version of gmtime().
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100408 This allows users to configure such an implementation at compile time when
Hanno Beckeracef2922018-09-05 16:19:07 +0100409 the target system cannot be deduced automatically, by setting the option
410 MBEDTLS_PLATFORM_GMTIME_R_ALT. At this stage Mbed TLS is only able to
411 automatically select implementations for Windows and POSIX C libraries.
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100412
Simon Butcherb3633822018-07-30 22:10:48 +0100413Bugfix
Andres Amaya Garcia8c9a6202018-09-05 11:30:28 +0100414 * Fix build failures on platforms where only gmtime() is available but
415 neither gmtime_r() nor gmtime_s() are present. Fixes #1907.
Simon Butcherb3633822018-07-30 22:10:48 +0100416
Simon Butcher4d075cd2018-08-31 15:59:10 +0100417= mbed TLS 2.13.0 branch released 2018-08-31
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100418
k-stachowiak21feae52018-07-09 14:42:35 +0200419Security
k-stachowiak6ca436a2018-07-16 12:20:10 +0200420 * Fix an issue in the X.509 module which could lead to a buffer overread
421 during certificate extensions parsing. In case of receiving malformed
422 input (extensions length field equal to 0), an illegal read of one byte
423 beyond the input buffer is made. Found and analyzed by Nathan Crandall.
k-stachowiak21feae52018-07-09 14:42:35 +0200424
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200425Features
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200426 * Add support for fragmentation of outgoing DTLS handshake messages. This
427 is controlled by the maximum fragment length as set locally or negotiated
Manuel Pégourié-Gonnardf2f1d402018-08-21 09:53:22 +0200428 with the peer, as well as by a new per-connection MTU option, set using
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200429 mbedtls_ssl_set_mtu().
Manuel Pégourié-Gonnardb8eec192018-08-20 09:34:02 +0200430 * Add support for auto-adjustment of MTU to a safe value during the
431 handshake when flights do not get through (RFC 6347, section 4.1.1.1,
432 last paragraph).
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100433 * Add support for packing multiple records within a single datagram,
434 enabled by default.
Hanno Becker02f6f5a2018-08-28 12:54:27 +0100435 * Add support for buffering out-of-order handshake messages in DTLS.
Hanno Beckeraa249372018-08-22 10:27:13 +0100436 The maximum amount of RAM used for this can be controlled by the
437 compile-time constant MBEDTLS_SSL_DTLS_MAX_BUFFERING defined
438 in mbedtls/config.h.
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100439
440API Changes
Hanno Becker1841b0a2018-08-24 11:13:57 +0100441 * Add function mbedtls_ssl_set_datagram_packing() to configure
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100442 the use of datagram packing (enabled by default).
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200443
Gilles Peskine104d8582018-06-27 10:57:33 +0200444Bugfix
Simon Butcherb5afb972018-08-31 11:59:56 +0100445 * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation
446 failure in the function could lead to other buffers being leaked.
Gilles Peskine104d8582018-06-27 10:57:33 +0200447 * Fixes an issue with MBEDTLS_CHACHAPOLY_C which would not compile if
448 MBEDTLS_ARC4_C and MBEDTLS_CIPHER_NULL_CIPHER weren't also defined. #1890
Jaeden Amerof48163a2018-08-10 10:49:10 +0100449 * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails.
450 Fix contributed by Espressif Systems.
Ron Eldor3f38cf72018-06-21 16:40:24 +0300451 * Add ecc extensions only if an ecc based ciphersuite is used.
Ron Eldor84e62f82018-06-28 11:09:09 +0300452 This improves compliance to RFC 4492, and as a result, solves
453 interoperability issues with BouncyCastle. Raised by milenamil in #1157.
Simon Butcherb5afb972018-08-31 11:59:56 +0100454 * Replace printf with mbedtls_printf in the ARIA module. Found by
455 TrinityTonic in #1908.
Hanno Becker9dc3be72018-08-14 15:22:05 +0100456 * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len()
Hanno Becker361f2542018-08-13 16:36:58 +0100457 and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941.
Hanno Beckereb2b15a2018-08-17 09:47:22 +0100458 * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake
459 with TLS versions 1.1 and earlier when the server requested authentication
460 without providing a list of CAs. This was due to an overly strict bounds
461 check in parsing the CertificateRequest message,
462 introduced in Mbed TLS 2.12.0. Fixes #1954.
Hanno Becker44814642018-08-03 09:53:48 +0100463 * Fix a miscalculation of the maximum record expansion in
464 mbedtls_ssl_get_record_expansion() in case of ChachaPoly ciphersuites,
465 or CBC ciphersuites in (D)TLS versions 1.1 or higher. Fixes #1913, #1914.
Simon Butcherb5afb972018-08-31 11:59:56 +0100466 * Fix undefined shifts with negative values in certificates parsing
467 (found by Catena cyber using oss-fuzz)
Hanno Beckera70fb952017-10-08 16:13:03 +0100468 * Fix memory leak and free without initialization in pk_encrypt
469 and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128.
Simon Butcherb5afb972018-08-31 11:59:56 +0100470 * Remove redundant else statement. Raised by irwir. Fixes #1776.
Gilles Peskine104d8582018-06-27 10:57:33 +0200471
Jaeden Amero372b50b2018-08-10 10:56:31 +0100472Changes
473 * Copy headers preserving timestamps when doing a "make install".
474 Contributed by xueruini.
Jaeden Amero03bd4842018-08-10 11:17:14 +0100475 * Allow the forward declaration of public structs. Contributed by Dawid
476 Drozd. Fixes #1215 raised by randombit.
Jaeden Amerod8f416982018-08-10 11:23:15 +0100477 * Improve compatibility with some alternative CCM implementations by using
478 CCM test vectors from RAM.
Hanno Beckerf1035422018-08-16 16:07:27 +0100479 * Add support for buffering of out-of-order handshake messages.
Janos Follath08a4aeb2018-08-06 14:20:15 +0100480 * Add warnings to the documentation of the HKDF module to reduce the risk
481 of misusing the mbedtls_hkdf_extract() and mbedtls_hkdf_expand()
482 functions. Fixes #1775. Reported by Brian J. Murray.
483
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100484= mbed TLS 2.12.0 branch released 2018-07-25
485
Gilles Peskine104d8582018-06-27 10:57:33 +0200486Security
487 * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384,
488 in (D)TLS 1.0 to 1.2, that allowed an active network attacker to
489 partially recover the plaintext of messages under some conditions by
490 exploiting timing measurements. With DTLS, the attacker could perform
491 this recovery by sending many messages in the same connection. With TLS
492 or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only
493 worked if the same secret (for example a HTTP Cookie) has been repeatedly
494 sent over connections manipulated by the attacker. Connections using GCM
495 or CCM instead of CBC, using hash sizes other than SHA-384, or using
496 Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was
497 caused by a miscalculation (for SHA-384) in a countermeasure to the
498 original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi
499 Shamir.
Manuel Pégourié-Gonnard1cc1fb02018-06-28 12:10:27 +0200500 * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to
501 1.2, that allowed a local attacker, able to execute code on the local
502 machine as well as manipulate network packets, to partially recover the
Manuel Pégourié-Gonnard830ce112018-07-11 18:27:08 +0200503 plaintext of messages under some conditions by using a cache attack
Antonin Décimo36e89b52019-01-23 15:24:37 +0100504 targeting an internal MD/SHA buffer. With TLS or if
Manuel Pégourié-Gonnard830ce112018-07-11 18:27:08 +0200505 mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if
506 the same secret (for example a HTTP Cookie) has been repeatedly sent over
507 connections manipulated by the attacker. Connections using GCM or CCM
508 instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected.
509 Found by Kenny Paterson, Eyal Ronen and Adi Shamir.
Manuel Pégourié-Gonnard7b420302018-06-28 10:38:35 +0200510 * Add a counter-measure against a vulnerability in TLS ciphersuites based
511 on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to
512 execute code on the local machine as well as manipulate network packets,
513 to partially recover the plaintext of messages under some conditions (see
514 previous entry) by using a cache attack targeting the SSL input record
515 buffer. Connections using GCM or CCM instead of CBC or using
516 Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson,
517 Eyal Ronen and Adi Shamir.
Gilles Peskine104d8582018-06-27 10:57:33 +0200518
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200519Features
520 * Add new crypto primitives from RFC 7539: stream cipher Chacha20, one-time
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200521 authenticator Poly1305 and AEAD construct Chacha20-Poly1305. Contributed
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100522 by Daniel King.
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200523 * Add support for CHACHA20-POLY1305 ciphersuites from RFC 7905.
Simon Butcher231d7e52018-07-10 11:56:19 +0100524 * Add platform support for the Haiku OS. (https://www.haiku-os.org).
525 Contributed by Augustin Cavalier.
Simon Butcher00af4472018-07-10 15:35:43 +0100526 * Make the receive and transmit buffers independent sizes, for situations
527 where the outgoing buffer can be fixed at a smaller size than the incoming
528 buffer, which can save some RAM. If buffer lengths are kept equal, there
529 is no functional difference. Contributed by Angus Gratton, and also
530 independently contributed again by Paul Sokolovsky.
Ron Eldor9cf0d532018-07-15 09:34:35 +0300531 * Add support for key wrapping modes based on AES as defined by
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100532 NIST SP 800-38F algorithms KW and KWP and by RFC 3394 and RFC 5649.
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200533
Simon Butcher9e02b972018-06-28 11:56:57 +0100534Bugfix
535 * Fix the key_app_writer example which was writing a leading zero byte which
536 was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
niisatob7d39db2018-06-25 20:44:57 +0900537 * Fix compilation error on C++, because of a variable named new.
niisato164b9cd2018-06-25 20:47:05 +0900538 Found and fixed by Hirotaka Niisato in #1783.
Simon Butcher1d97cab2018-06-28 12:06:16 +0100539 * Fix "no symbols" warning issued by ranlib when building on Mac OS X. Fix
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100540 contributed by tabascoeye.
Andres Amaya Garciaa562c262017-07-11 14:39:30 +0100541 * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
542 return value. Found by @davidwu2000. #839
Simon Butcher1ab9b572018-06-28 12:10:56 +0100543 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
544 Philippe Antoine. Fixes #1623.
Simon Butcher05fa46e2018-07-02 12:00:54 +0100545 * Remove unused headers included in x509.c. Found by Chris Hanson and fixed
546 by Brendan Shanks. Part of a fix for #992.
Ron Eldorda2a3122018-06-17 14:51:59 +0300547 * Fix compilation error when MBEDTLS_ARC4_C is disabled and
548 MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100549 * Added length checks to some TLS parsing functions. Found and fixed by
550 Philippe Antoine from Catena cyber. #1663.
Simon Butcher6c344422018-06-24 16:20:56 +0100551 * Fix the inline assembly for the MPI multiply helper function for i386 and
552 i386 with SSE2. Found by László Langó. Fixes #1550
Ron Eldor6332e362017-10-01 17:11:54 +0300553 * Fix namespacing in header files. Remove the `mbedtls` namespacing in
Ron Eldor6fd941f2017-05-14 16:17:33 +0300554 the `#include` in the header files. Resolves #857
Simon Butcherecb635e2018-07-24 10:03:41 +0100555 * Fix compiler warning of 'use before initialisation' in
556 mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid
557 Drozd. #1098
Simon Butcher05330542018-07-24 12:54:15 +0100558 * Fix decryption for zero length messages (which contain all padding) when a
559 CBC based ciphersuite is used together with Encrypt-then-MAC. Previously,
560 such a message was wrongly reported as an invalid record and therefore lead
561 to the connection being terminated. Seen most often with OpenSSL using
562 TLS 1.0. Reported by @kFYatek and by Conor Murphy on the forum. Fix
563 contributed by Espressif Systems. Fixes #1632
Andres Amaya Garcia81f06332018-07-04 10:01:39 +0100564 * Fix ssl_client2 example to send application data with 0-length content
565 when the request_size argument is set to 0 as stated in the documentation.
566 Fixes #1833.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100567 * Correct the documentation for `mbedtls_ssl_get_session()`. This API has
568 deep copy of the session, and the peer certificate is not lost. Fixes #926.
Simon Butcher2c929492018-07-24 17:20:17 +0100569 * Fix build using -std=c99. Fixed by Nick Wilson.
Simon Butcher9e02b972018-06-28 11:56:57 +0100570
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100571Changes
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100572 * Fail when receiving a TLS alert message with an invalid length, or invalid
573 zero-length messages when using TLS 1.2. Contributed by Espressif Systems.
574 * Change the default behaviour of mbedtls_hkdf_extract() to return an error
575 when calling with a NULL salt and non-zero salt_len. Contributed by
576 Brian J Murray
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100577 * Change the shebang line in Perl scripts to look up perl in the PATH.
578 Contributed by fbrosson.
Nicholas Wilson512b4ee2017-12-05 12:07:33 +0000579 * Allow overriding the time on Windows via the platform-time abstraction.
580 Fixed by Nick Wilson.
581 * Use gmtime_r/gmtime_s for thread-safety. Fixed by Nick Wilson.
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100582
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +0200583= mbed TLS 2.11.0 branch released 2018-06-18
584
585Features
Simon Butcher4ed38802018-06-12 17:35:06 +0100586 * Add additional block mode, OFB (Output Feedback), to the AES module and
587 cipher abstraction module.
588 * Implement the HMAC-based extract-and-expand key derivation function
589 (HKDF) per RFC 5869. Contributed by Thomas Fossati.
590 * Add support for the CCM* block cipher mode as defined in IEEE Std. 802.15.4.
Jaeden Amerof4474e72018-05-23 14:21:02 +0100591 * Add support for the XTS block cipher mode with AES (AES-XTS).
592 Contributed by Aorimn in pull request #414.
Gilles Peskineb44692f2018-04-24 12:18:19 +0200593 * In TLS servers, support offloading private key operations to an external
594 cryptoprocessor. Private key operations can be asynchronous to allow
595 non-blocking operation of the TLS server stack.
Simon Butcherebe23ed2018-06-12 16:46:45 +0100596
Simon Butcher601144e2018-06-12 17:04:58 +0100597Bugfix
Simon Butcher4ed38802018-06-12 17:35:06 +0100598 * Fix the cert_write example to handle certificates signed with elliptic
599 curves as well as RSA. Fixes #777 found by dbedev.
Simon Butchere5cd8682018-06-14 10:30:19 +0100600 * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
601 used by user applications. Found and fixed by Fabio Alessandrelli.
Simon Butcher600c5e62018-06-14 08:58:59 +0100602 * Fix compilation warnings with IAR toolchain, on 32 bit platform.
603 Reported by rahmanih in #683
Simon Butcher925568a2018-06-18 11:54:44 +0100604 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
Simon Butcher4ed38802018-06-12 17:35:06 +0100605
606Changes
607 * Changed CMake defaults for IAR to treat all compiler warnings as errors.
Simon Butcherb6a5bff2018-06-18 11:51:36 +0100608 * Changed the Clang parameters used in the CMake build files to work for
609 versions later than 3.6. Versions of Clang earlier than this may no longer
610 work. Fixes #1072
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200611
Simon Butcherd5a09f12018-06-06 14:47:47 +0100612= mbed TLS 2.10.0 branch released 2018-06-06
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100613
Manuel Pégourié-Gonnard08d1e912018-02-27 12:43:35 +0100614Features
615 * Add support for ARIA cipher (RFC 5794) and associated TLS ciphersuites
616 (RFC 6209). Disabled by default, see MBEDTLS_ARIA_C in config.h
617
Gilles Peskine80aa3b82018-04-04 10:33:45 +0200618API Changes
Andres Amaya Garcia19624052018-03-08 20:06:03 +0000619 * Extend the platform module with a util component that contains
620 functionality shared by multiple Mbed TLS modules. At this stage
621 platform_util.h (and its associated platform_util.c) only contain
622 mbedtls_platform_zeroize(), which is a critical function from a security
623 point of view. mbedtls_platform_zeroize() needs to be regularly tested
624 against compilers to ensure that calls to it are not removed from the
625 output binary as part of redundant code elimination optimizations.
626 Therefore, mbedtls_platform_zeroize() is moved to the platform module to
627 facilitate testing and maintenance.
Hanno Becker2bd57572018-03-28 14:52:35 +0100628
Simon Butcherd72700a2018-06-01 19:11:55 +0100629Bugfix
630 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
631 build to fail. Found by zv-io. Fixes #1651.
632
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100633Changes
634 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Moran Pekera64fba42018-02-25 13:29:03 +0200635 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
636 TrinityTonic. #1359.
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100637
Jaeden Amero7d7bad62018-04-27 13:07:13 +0100638= mbed TLS 2.9.0 branch released 2018-04-30
Ron Eldorfb46c322016-12-16 16:15:56 +0200639
Simon Butcherf85c90a2017-07-27 15:11:52 +0100640Security
Simon Butcherb03120a2018-04-30 16:40:25 +0100641 * Fix an issue in the X.509 module which could lead to a buffer overread
642 during certificate validation. Additionally, the issue could also lead to
643 unnecessary callback checks being made or to some validation checks to be
644 omitted. The overread could be triggered remotely, while the other issues
645 would require a non DER-compliant certificate to be correctly signed by a
646 trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
647 luocm. Fixes #825.
648 * Fix the buffer length assertion in the ssl_parse_certificate_request()
649 function which led to an arbitrary overread of the message buffer. The
650 overreads could be caused by receiving a malformed message at the point
651 where an optional signature algorithms list is expected when the signature
652 algorithms section is too short. In builds with debug output, the overread
653 data is output with the debug data.
Andrzej Kurekb7a18c02018-04-25 05:25:30 -0400654 * Fix a client-side bug in the validation of the server's ciphersuite choice
Simon Butcherb03120a2018-04-30 16:40:25 +0100655 which could potentially lead to the client accepting a ciphersuite it didn't
656 offer or a ciphersuite that cannot be used with the TLS or DTLS version
657 chosen by the server. This could lead to corruption of internal data
658 structures for some configurations.
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100659
Gilles Peskine15ad5792018-03-22 22:21:55 +0100660Features
Simon Butcherb03120a2018-04-30 16:40:25 +0100661 * Add an option, MBEDTLS_AES_FEWER_TABLES, to dynamically compute smaller AES
662 tables during runtime, thereby reducing the RAM/ROM footprint by ~6KiB.
663 Suggested and contributed by jkivilin in pull request #394.
Gilles Peskine15ad5792018-03-22 22:21:55 +0100664 * Add initial support for Curve448 (RFC 7748). Only mbedtls_ecp_mul() and
665 ECDH primitive functions (mbedtls_ecdh_gen_public(),
666 mbedtls_ecdh_compute_shared()) are supported for now. Contributed by
Simon Butchere6a2a1a2018-05-01 13:57:53 +0100667 Nicholas Wilson in pull request #348.
Hanno Becker371f31c2017-06-07 15:56:54 +0100668
669API Changes
Simon Butcherb03120a2018-04-30 16:40:25 +0100670 * Extend the public API with the function of mbedtls_net_poll() to allow user
671 applications to wait for a network context to become ready before reading
672 or writing.
673 * Add function mbedtls_ssl_check_pending() to the public API to allow
674 a check for whether more more data is pending to be processed in the
675 internal message buffers.
Gilles Peskine557e77d2018-04-04 09:18:11 +0200676 This function is necessary to determine when it is safe to idle on the
677 underlying transport in case event-driven IO is used.
Hanno Becker371f31c2017-06-07 15:56:54 +0100678
Andres AGee7157e2016-12-07 10:25:19 +0000679Bugfix
Simon Butcherb03120a2018-04-30 16:40:25 +0100680 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
Gilles Peskine08185402018-03-22 21:50:48 +0100681 contributed by Brian J Murray and David Brown.
Gilles Peskine51d93942018-03-23 01:42:44 +0100682 * Add missing dependencies in test suites that led to build failures
683 in configurations that omit certain hashes or public-key algorithms.
684 Fixes #1040.
Jaeden Amerob6049602018-03-26 18:25:58 +0100685 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
686 #1353
Gilles Peskinef69ad5a2018-03-27 23:08:53 +0200687 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
Simon Butcherb03120a2018-04-30 16:40:25 +0100688 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
689 Deomid Ryabkov. Fixes #1299, #1475.
690 * Fix the Makefile build process for building shared libraries on Mac OS X.
691 Fixed by mnacamura.
Jethro Beekmand2df9362018-02-16 13:11:04 -0800692 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcherb03120a2018-04-30 16:40:25 +0100693 unable to parse keys which had only the optional parameters field of the
Jethro Beekmancb122372018-04-11 08:40:38 -0700694 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
Simon Butcherb03120a2018-04-30 16:40:25 +0100695 * Return the plaintext data more quickly on unpadded CBC decryption, as
696 stated in the mbedtls_cipher_update() documentation. Contributed by
697 Andy Leiserson.
Gilles Peskineb9e86962018-04-04 09:20:59 +0200698 * Fix overriding and ignoring return values when parsing and writing to
699 a file in pk_sign program. Found by kevlut in #1142.
Hanno Beckerc53826b2017-10-12 07:46:41 +0100700 * Restrict usage of error code MBEDTLS_ERR_SSL_WANT_READ to situations
701 where data needs to be fetched from the underlying transport in order
702 to make progress. Previously, this error code was also occasionally
703 returned when unexpected messages were being discarded, ignoring that
704 further messages could potentially already be pending to be processed
Simon Butcherb03120a2018-04-30 16:40:25 +0100705 in the internal buffers; these cases led to deadlocks when event-driven
706 I/O was used. Found and reported by Hubert Mis in #772.
Gilles Peskinef2b76cd2018-04-19 17:41:39 +0200707 * Fix buffer length assertions in the ssl_parse_certificate_request()
708 function which leads to a potential one byte overread of the message
709 buffer.
Andrzej Kurek5462e022018-04-20 07:58:53 -0400710 * Fix invalid buffer sizes passed to zlib during record compression and
711 decompression.
Simon Butchere6a2a1a2018-05-01 13:57:53 +0100712 * Fix the soversion of libmbedcrypto to match the soversion of the
713 maintained 2.7 branch. The soversion was increased in Mbed TLS
714 version 2.7.1 to reflect breaking changes in that release, but the
715 increment was missed in 2.8.0 and later releases outside of the 2.7 branch.
Gilles Peskine08185402018-03-22 21:50:48 +0100716
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100717Changes
718 * Remove some redundant code in bignum.c. Contributed by Alexey Skalozub.
Simon Butcherb03120a2018-04-30 16:40:25 +0100719 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
720 independently by Matthieu Volat and Arne Schwabe.
Gilles Peskine51d93942018-03-23 01:42:44 +0100721 * Improve testing in configurations that omit certain hashes or
722 public-key algorithms. Includes contributions by Gert van Dijk.
723 * Improve negative testing of X.509 parsing.
Andres Amaya Garcia768bbaf2018-03-21 15:05:12 +0000724 * Do not define global mutexes around readdir() and gmtime() in
725 configurations where the feature is disabled. Found and fixed by Gergely
726 Budai.
Simon Butcherb03120a2018-04-30 16:40:25 +0100727 * Harden the function mbedtls_ssl_config_free() against misuse, so that it
728 doesn't leak memory if the user doesn't use mbedtls_ssl_conf_psk() and
729 instead incorrectly manipulates the configuration structure directly.
730 Found and fix submitted by junyeonLEE in #1220.
Andres Amaya Garciacb47a792018-03-27 21:19:50 +0100731 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
732 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
733 without PBES2. Fixed by Marcos Del Sol Vives.
Manuel Pégourié-Gonnardfff308e2018-03-28 11:13:05 +0200734 * Add the order of the base point as N in the mbedtls_ecp_group structure
735 for Curve25519 (other curves had it already). Contributed by Nicholas
736 Wilson #481
Jaeden Amero4ba87fc2018-03-29 11:01:38 +0100737 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
738 Krylov.
Darryl Greeneea1c4e2018-03-29 16:05:44 +0100739 * Improve the documentation of mbedtls_ssl_write(). Suggested by
740 Paul Sokolovsky in #1356.
Simon Butcherb03120a2018-04-30 16:40:25 +0100741 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100742 letter must not be prefixed by '-', such as LLVM. Found and fixed by
743 Alex Hixon.
Andres Amaya Garciaea5a8a42018-03-25 23:57:09 +0100744 * Allow configuring the shared library extension by setting the DLEXT
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100745 environment variable when using the project makefiles.
Gilles Peskine4e4be7c2018-03-21 16:29:03 +0100746 * Optimize unnecessary zeroing in mbedtls_mpi_copy. Based on a contribution
Gilles Peskine092bf3d2018-04-01 12:43:48 +0200747 by Alexey Skalozub in #405.
Gilles Peskinea09453f2018-04-04 09:14:12 +0200748 * In the SSL module, when f_send, f_recv or f_recv_timeout report
749 transmitting more than the required length, return an error. Raised by
750 Sam O'Connor in #1245.
Gilles Peskinec96ccf42018-03-31 22:57:03 +0200751 * Improve robustness of mbedtls_ssl_derive_keys against the use of
752 HMAC functions with non-HMAC ciphersuites. Independently contributed
753 by Jiayuan Chen in #1377. Fixes #1437.
Simon Butcherb03120a2018-04-30 16:40:25 +0100754 * Improve security of RSA key generation by including criteria from
755 FIPS 186-4. Contributed by Jethro Beekman. #1380
Gilles Peskine81021ca2018-04-19 20:59:06 +0200756 * Declare functions in header files even when an alternative implementation
757 of the corresponding module is activated by defining the corresponding
758 MBEDTLS_XXX_ALT macro. This means that alternative implementations do
759 not need to copy the declarations, and ensures that they will have the
760 same API.
Andrzej Kurekaca09c72018-04-13 05:18:08 -0400761 * Add platform setup and teardown calls in test suites.
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100762
Jaeden Amero8be0e6d2018-03-16 16:25:12 +0000763= mbed TLS 2.8.0 branch released 2018-03-16
Gilles Peskine27b07542018-02-14 14:07:48 +0100764
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100765Default behavior changes
766 * The truncated HMAC extension now conforms to RFC 6066. This means
767 that when both sides of a TLS connection negotiate the truncated
768 HMAC extension, Mbed TLS can now interoperate with other
769 compliant implementations, but this breaks interoperability with
770 prior versions of Mbed TLS. To restore the old behavior, enable
771 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
772 config.h. Found by Andreas Walz (ivESK, Offenburg University of
773 Applied Sciences).
774
Hanno Becker7dc832b2017-11-16 17:39:34 +0000775Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100776 * Fix implementation of the truncated HMAC extension. The previous
777 implementation allowed an offline 2^80 brute force attack on the
778 HMAC key of a single, uninterrupted connection (with no
779 resumption of the session).
Gilles Peskine553a06f2018-03-13 17:15:34 +0100780 * Verify results of RSA private key operations to defend
781 against Bellcore glitch attack.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +0100782 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
783 a crash on invalid input.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +0100784 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
785 crash on invalid input.
Manuel Pégourié-Gonnardfd3e4fb2018-03-13 11:53:30 +0100786 * Fix CRL parsing to reject CRLs containing unsupported critical
787 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Hanno Becker7dc832b2017-11-16 17:39:34 +0000788
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800789Features
790 * Extend PKCS#8 interface by introducing support for the entire SHA
791 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine1d80a672018-02-14 11:33:30 +0100792 This allows reading encrypted PEM files produced by software that
793 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
794 OpenVPN Inc. Fixes #1339
Gilles Peskine3dabd6a2018-02-14 17:19:41 +0100795 * Add support for public keys encoded in PKCS#1 format. #1122
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800796
Hanno Beckercf092b22018-03-06 14:23:38 +0000797New deprecations
798 * Deprecate support for record compression (configuration option
799 MBEDTLS_ZLIB_SUPPORT).
800
Gilles Peskine27b07542018-02-14 14:07:48 +0100801Bugfix
802 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
803 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +0100804 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +0200805 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
806 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskine1bf61232018-02-27 08:37:52 +0100807 In the context of SSL, this resulted in handshake failure. Reported by
808 daniel in the Mbed TLS forum. #1351
Jaeden Ameroc5d08f82018-02-21 13:32:39 +0000809 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskineb4c571e2018-03-11 00:44:14 +0100810 * Fix setting version TLSv1 as minimal version, even if TLS 1
811 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
812 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
813 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +0300814 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
815 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +0300816 Nick Wilson on issue #355
Gilles Peskine08af5382018-03-11 00:15:56 +0100817 * In test_suite_pk, pass valid parameters when testing for hash length
itayzafrir693a1d92018-02-26 12:02:10 +0200818 overflow. #1179
Gilles Peskinea31d8202018-03-12 23:45:08 +0100819 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
820 by Guido Vranken. #639
Gilles Peskine3ff4a072018-03-12 23:54:20 +0100821 * Log correct number of ciphersuites used in Client Hello message. #918
Gilles Peskine5f193282018-03-13 17:18:06 +0100822 * Fix X509 CRT parsing that would potentially accept an invalid tag when
823 parsing the subject alternative names.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +0100824 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
825 that could cause a key exchange to fail on valid data.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +0100826 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
827 could cause a key exchange to fail on valid data.
Gilles Peskine8db3efb2018-02-21 19:16:20 +0100828 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
829 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +0100830 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
831 Found through fuzz testing.
Gilles Peskine27b07542018-02-14 14:07:48 +0100832
833Changes
834 * Fix tag lengths and value ranges in the documentation of CCM encryption.
835 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +0100836 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskinedf298682018-02-14 15:49:54 +0100837 * Remove support for the library reference configuration for picocoin.
Gilles Peskinebb2565c2018-02-21 17:59:40 +0100838 * MD functions deprecated in 2.7.0 are no longer inline, to provide
839 a migration path for those depending on the library's ABI.
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200840 * Clarify the documentation of mbedtls_ssl_setup.
Gilles Peskine6dc4a312018-03-13 00:13:06 +0100841 * Use (void) when defining functions with no parameters. Contributed by
842 Joris Aerts. #678
Gilles Peskine27b07542018-02-14 14:07:48 +0100843
Simon Butcher55fc4e02018-02-05 01:09:13 +0000844= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100845
Gilles Peskine28a0c722017-10-17 19:01:38 +0200846Security
Simon Butcher55fc4e02018-02-05 01:09:13 +0000847 * Fix a heap corruption issue in the implementation of the truncated HMAC
848 extension. When the truncated HMAC extension is enabled and CBC is used,
849 sending a malicious application packet could be used to selectively corrupt
850 6 bytes on the peer's heap, which could potentially lead to crash or remote
851 code execution. The issue could be triggered remotely from either side in
852 both TLS and DTLS. CVE-2018-0488
853 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
854 for the key size, which could potentially lead to crash or remote code
855 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
856 Qualcomm Technologies Inc. CVE-2018-0487
857 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
858 zeros.
859 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
860 64 KiB to the address of the SSL buffer and causing a wrap around.
861 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +0100862 default enabled) maximum fragment length extension is disabled in the
863 config and the application data buffer passed to mbedtls_ssl_write
864 is larger than the internal message buffer (16384 bytes by default), the
865 latter overflows. The exploitability of this issue depends on whether the
866 application layer can be forced into sending such large packets. The issue
867 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +0000868 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
869 Fixes #707.
870 * Add a provision to prevent compiler optimizations breaking the time
871 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +0100872 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +0100873 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +0300874 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
875 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +0100876 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
877 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000878 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
879 data. Previously, trailing zero bytes were detected and omitted for the
880 sake of saving memory, but potentially leading to slight timing
881 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +0100882 * Wipe stack buffer temporarily holding EC private exponent
883 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000884 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +0100885 (server-side). Could result in application crash, but only if an ALPN
886 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100887 * Change default choice of DHE parameters from untrustworthy RFC 5114
888 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
889 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +0200890
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200891Features
892 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +0100893 * The selftest program can execute a subset of the tests based on command
894 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +0200895 * New unit tests for timing. Improve the self-test to be more robust
896 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +0100897 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +0000898 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +0100899 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +0100900 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +0300901 * Add support for alternative implementations for ECDSA, controlled by new
902 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
903 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +0300904 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +0300905 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +0300906 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000907 * Add support for alternative implementation of ECDH, controlled by the
908 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +0300909 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +0300910 The following functions from the ECDH module can be replaced
911 with an alternative implementation:
912 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000913 * Add support for alternative implementation of ECJPAKE, controlled by
914 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000915 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +0200916
Hanno Beckera47023e2017-12-22 17:08:03 +0000917API Changes
918 * Extend RSA interface by multiple functions allowing structure-
919 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +0000920 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +0000921 up RSA contexts from partial key material and having them completed to the
922 needs of the implementation automatically. This allows to setup private RSA
923 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
924 purpose or CRT and/or blinding.
925 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
926 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100927 * The following functions in the message digest modules (MD2, MD4, MD5,
928 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
929 The new functions change the return type from void to int to allow
930 returning error codes when using MBEDTLS_<MODULE>_ALT.
931 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
932 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
933 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100934 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200935
Ron Eldor73a38172017-10-03 15:58:26 +0300936New deprecations
937 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000938 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100939 * Direct manipulation of structure fields of RSA contexts is deprecated.
940 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000941 * Deprecate usage of message digest functions that return void
942 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
943 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
944 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
945 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100946 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
947 parameters from RFC 3526 or the newly added parameters from RFC 7919.
948 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
949 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
950 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000951 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
952 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100953 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100954
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100955Bugfix
956 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
957 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100958 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
Simon Butcherb03120a2018-04-30 16:40:25 +0100959 Found by projectgus and Jethro Beekman, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100960 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300961 * Parse signature algorithm extension when renegotiating. Previously,
962 renegotiated handshakes would only accept signatures using SHA-1
963 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000964 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
965 dates on leap years with 100 and 400 intervals are handled correctly. Found
966 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200967 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
968 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100969 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
970 Found independently by Florian in the mbed TLS forum and by Mishamax.
971 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100972 * Fix variable used before assignment compilation warnings with IAR
973 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000974 * Fix unchecked return codes from AES, DES and 3DES functions in
975 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
976 If a call to one of the functions of the cryptographic primitive modules
977 failed, the error may not be noticed by the function
978 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
979 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100980 * Include configuration file in md.h, to fix compilation warnings.
981 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100982 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
983 writing routines that prevented these functions to work with alternative
984 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100985 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
986 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100987 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000988 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100989 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000990 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100991 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000992 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000993 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100994 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100995 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100996 * Add size-checks for record and handshake message content, securing
997 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300998 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
999 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +01001000 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001001 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +01001002 * Fix possible memory leaks in mbedtls_gcm_self_test().
1003 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +00001004 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
1005 RSA test suite where the failure of CTR DRBG initialization lead to
1006 freeing an RSA context and several MPI's without proper initialization
1007 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +01001008 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +01001009 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
1010 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001011 * Fix an issue in the cipher decryption with the mode
1012 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
1013 Note, this padding mode is not used by the TLS protocol. Found and fixed by
1014 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +01001015 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
1016 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
1017 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
1018 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +01001019 structure. Do not assume that zeroizing a context is a correct way to
1020 reset it. Found independently by ccli8 on Github.
1021 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001022 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
1023 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +01001024
1025Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +00001026 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +01001027 and the message digest. Further, allow enabling/disabling of authority
1028 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +00001029 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
1030 particular, don't require P,Q if neither CRT nor blinding are
1031 used. Reported and fix proposed independently by satur9nine and sliai
1032 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +01001033 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +01001034 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
1035 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +01001036 * Update all internal usage of deprecated message digest functions to the
1037 new ones with return codes. In particular, this modifies the
1038 mbedtls_md_info_t structure. Propagate errors from these functions
1039 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +00001040 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +01001041 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
1042 modules where the software implementation can be replaced by a hardware
1043 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +01001044 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
1045 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +01001046
Simon Butcher72ea31b2017-08-10 11:51:16 +01001047= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +02001048
Simon Butcherb060cc22017-07-28 01:04:34 +01001049Security
Simon Butcher01971d02017-08-10 10:48:01 +01001050 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherf85c90a2017-07-27 15:11:52 +01001051 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
1052 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +01001053 (default: 8) intermediates, even when it was not trusted. This could be
1054 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +01001055 (the default), the handshake was correctly aborted).
1056 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +01001057 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
1058 Found by Laurent Simon.
Simon Butcherf85c90a2017-07-27 15:11:52 +01001059
Andres Amaya Garcia2187e032017-07-07 13:19:13 +01001060Features
1061 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia24f36412017-07-12 11:27:05 +01001062 and the context struct mbedtls_platform_context to perform
1063 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia5478bc72017-07-18 10:24:26 +01001064 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +01001065 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +01001066 some embedded environments to provide a means of initialising underlying
1067 cryptographic acceleration hardware.
Andres Amaya Garcia2187e032017-07-07 13:19:13 +01001068
Simon Butcherab670432017-07-20 12:33:41 +02001069API Changes
1070 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
1071 API consistent with mbed TLS 2.5.0. Specifically removed the inline
1072 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +01001073 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
1074 by James Cowgill. #978
Simon Butcherf85c90a2017-07-27 15:11:52 +01001075 * Certificate verification functions now set flags to -1 in case the full
1076 chain was not verified due to an internal error (including in the verify
1077 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +01001078 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherf85c90a2017-07-27 15:11:52 +01001079 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +01001080 a fatal error in the verify callback.
Simon Butcherab670432017-07-20 12:33:41 +02001081
Ron Eldore2efaea2016-12-16 16:15:56 +02001082Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +01001083 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
1084 Reported by roberto. #716
1085 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor63140682017-01-09 19:27:59 +02001086 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +01001087 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +01001088 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
1089 in the case of an error. Found by redplait. #590
Ron Eldorca6ff582017-01-12 14:50:50 +02001090 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +01001091 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciab820bf82017-05-04 11:05:55 +01001092 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
1093 compilation when using ARM Compiler 6.
Simon Butcher5deb5182017-07-26 17:25:55 +01001094 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001095 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher5deb5182017-07-26 17:25:55 +01001096 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
1097 KNOX Security, Samsung Research America
Andres AG2e65a542017-02-17 13:54:43 +00001098 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001099 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e65a542017-02-17 13:54:43 +00001100 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
1101 KNOX Security, Samsung Research America
Simon Butcher5deb5182017-07-26 17:25:55 +01001102 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001103 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher5deb5182017-07-26 17:25:55 +01001104 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +01001105 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +01001106 function mbedtls_time() instead. Found by wairua. #666
1107 * Avoid shadowing of time and index functions through mbed TLS function
1108 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +02001109
Janos Follath78b14732017-06-22 10:02:07 +01001110Changes
Janos Follathb85291c2017-06-22 10:02:07 +01001111 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +01001112 64-bit division. This is useful on embedded platforms where 64-bit division
1113 created a dependency on external libraries. #708
Janos Follath78b14732017-06-22 10:02:07 +01001114 * Removed mutexes from ECP hardware accelerator code. Now all hardware
1115 accelerator code in the library leaves concurrency handling to the
1116 platform. Reported by Steven Cooreman. #863
Andres Amaya Garciad0e15d72017-06-26 12:57:44 +01001117 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
1118 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +01001119 * Added a test script that can be hooked into git that verifies commits
1120 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +01001121 * Improve documentation of PKCS1 decryption functions.
Janos Follath78b14732017-06-22 10:02:07 +01001122
Simon Butcherf2a597f2017-06-20 23:08:10 +01001123= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +01001124
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001125Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +01001126 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
1127 The issue could only happen client-side with renegotiation enabled.
1128 Could result in DoS (application crash) or information leak
1129 (if the application layer sent data read from mbedtls_ssl_read()
1130 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +02001131 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
1132 certificate verification. SHA-1 can be turned back on with a compile-time
1133 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +02001134 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
1135 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +02001136 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
1137 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001138
Hanno Beckereccf60c2017-06-05 15:19:01 +01001139Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +01001140 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
1141 valid C and they prevented the test from compiling in Visual Studio 2015
1142 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +01001143 * Fix insufficient support for signature-hash-algorithm extension,
1144 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +01001145 * Fix behaviour that hid the original cause of fatal alerts in some cases
1146 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +02001147 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001148 * Fix SSLv3 renegotiation behaviour and stop processing data received from
1149 peer after sending a fatal alert to refuse a renegotiation attempt.
1150 Previous behaviour was to keep processing data even after the alert has
1151 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +01001152 * Accept empty trusted CA chain in authentication mode
Simon Butcherb03120a2018-04-30 16:40:25 +01001153 MBEDTLS_SSL_VERIFY_OPTIONAL. Found by Jethro Beekman. #864
Janos Follath5a1c0e72017-06-16 09:00:07 +01001154 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
1155 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
1156 reflect bad EC curves within verification result.
1157 * Fix bug that caused the modular inversion function to accept the invalid
1158 modulus 1 and therefore to hang. Found by blaufish. #641.
1159 * Fix incorrect sign computation in modular exponentiation when the base is
1160 a negative MPI. Previously the result was always negative. Found by Guido
1161 Vranken.
1162 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
1163 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +02001164
Gilles Peskine36091fe2017-05-03 16:55:03 +02001165Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +01001166 * Send fatal alerts in more cases. The previous behaviour was to skip
1167 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +00001168 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +01001169 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +00001170 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +02001171
Simon Butcher9f770172017-05-15 15:13:59 +01001172= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001173
Janos Follath45182a02017-03-23 10:41:56 +00001174Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +01001175 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +01001176 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
1177 Simon.
Janos Follath45182a02017-03-23 10:41:56 +00001178 * Add exponent blinding to RSA private operations as a countermeasure
1179 against side-channel attacks like the cache attack described in
1180 https://arxiv.org/abs/1702.08719v2.
1181 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
1182 Clémentine Maurice and Stefan Mangard.
1183
Simon Butcher4775e832017-05-13 22:56:08 +01001184Features
Janos Follath5a1c0e72017-06-16 09:00:07 +01001185 * Add hardware acceleration support for the Elliptic Curve Point module.
1186 This involved exposing parts of the internal interface to enable
1187 replacing the core functions and adding and alternative, module level
1188 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +01001189 * Add a new configuration option to 'mbedtls_ssl_config' to enable
1190 suppressing the CA list in Certificate Request messages. The default
1191 behaviour has not changed, namely every configured CAs name is included.
1192
Andres AGf5bf7182017-03-03 14:09:56 +00001193API Changes
1194 * The following functions in the AES module have been deprecated and replaced
1195 by the functions shown below. The new functions change the return type from
1196 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
1197 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
1198 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
1199 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
1200
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001201Bugfix
1202 * Remove macros from compat-1.3.h that correspond to deleted items from most
1203 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001204 * Fixed issue in the Threading module that prevented mutexes from
1205 initialising. Found by sznaider. #667 #843
1206 * Add checks in the PK module for the RSA functions on 64-bit systems.
1207 The PK and RSA modules use different types for passing hash length and
1208 without these checks the type cast could lead to data loss. Found by Guido
1209 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001210
Simon Butcherb65c2be2017-03-10 18:50:44 +00001211= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +01001212
Janos Follath182013f2016-10-25 10:50:22 +01001213Security
Simon Butcherb65c2be2017-03-10 18:50:44 +00001214 * Add checks to prevent signature forgeries for very large messages while
1215 using RSA through the PK module in 64-bit systems. The issue was caused by
1216 some data loss when casting a size_t to an unsigned int value in the
1217 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
1218 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +00001219 * Fixed potential livelock during the parsing of a CRL in PEM format in
1220 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
1221 characters after the footer could result in the execution of an infinite
1222 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
1223 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +01001224 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
1225 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +00001226 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +00001227 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
1228 when verifying the validity of a key on secp224k1. This could be
1229 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +00001230 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +00001231 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
1232 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +00001233
Andres AG703990b2016-10-24 11:23:36 +01001234Bugfix
Andres AGd1650662016-12-09 17:26:23 +00001235 * Fix output certificate verification flags set by x509_crt_verify_top() when
1236 traversing a chain of trusted CA. The issue would cause both flags,
1237 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
1238 set when the verification conditions are not met regardless of the cause.
1239 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +00001240 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
1241 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
1242 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +00001243 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
1244 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +00001245 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +00001246 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
1247 would compare 64 bits of the record counter instead of 48 bits as indicated
1248 in RFC 6347 Section 4.3.1. This could cause the execution of the
1249 renegotiation routines at unexpected times when the protocol is DTLS. Found
1250 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +01001251 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +01001252 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +01001253 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +00001254 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
1255 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1256 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
1257 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1258 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
1259 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +00001260 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
1261 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +00001262 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
1263 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +00001264 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
1265 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +00001266 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
1267 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +00001268 * Fixed the templates used to generate project and solution files for Visual
1269 Studio 2015 as well as the files themselves, to remove a build warning
1270 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +02001271 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
1272 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +00001273 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
1274 number to write in hexadecimal is negative and requires an odd number of
1275 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +00001276 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
1277 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +01001278
Janos Follath4c006cd2016-12-13 14:14:03 +00001279= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +00001280
1281Changes
1282 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
1283 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
1284 Authentication – October 2016
1285
Simon Butcher19dbd412016-10-16 19:35:49 +01001286= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +03001287
Andres AG60dbc932016-09-02 15:23:48 +01001288Security
Simon Butcheref8fa012016-10-16 00:44:08 +01001289 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
1290 with RFC-5116 and could lead to session key recovery in very long TLS
1291 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
1292 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
1293 https://eprint.iacr.org/2016/475.pdf
1294 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +01001295 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +01001296 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +01001297 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +01001298
Simon Butchercf8c1f42016-09-02 21:29:39 +03001299Features
Simon Butcher21c54812016-10-05 14:17:37 +01001300 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
1301 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001302 * Added hardware entropy selftest to verify that the hardware entropy source
1303 is functioning correctly.
1304 * Added a script to print build environment info for diagnostic use in test
1305 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +01001306 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
1307 configure the maximum length of a file path that can be buffered when
1308 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +01001309 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +01001310 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +01001311 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
1312 to configure the minimum number of bytes for entropy sources using the
1313 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001314
1315Bugfix
1316 * Fix for platform time abstraction to avoid dependency issues where a build
1317 may need time but not the standard C library abstraction, and added
1318 configuration consistency checks to check_config.h
1319 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +01001320 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
1321 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +03001322 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
1323 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +03001324 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
1325 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +01001326 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +01001327 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +01001328 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +01001329 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +01001330 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +01001331 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +01001332 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
1333 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
1334 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +01001335 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
1336 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +01001337 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +01001338 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +01001339 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +01001340 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +01001341 * Fix potential byte overread when verifying malformed SERVER_HELLO in
1342 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +01001343 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +01001344 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +01001345 * Fix compatibility issue with Internet Explorer client authentication,
1346 where the limited hash choices prevented the client from sending its
1347 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +01001348 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001349
1350Changes
1351 * Extended test coverage of special cases, and added new timing test suite.
1352 * Removed self-tests from the basic-built-test.sh script, and added all
1353 missing self-tests to the test suites, to ensure self-tests are only
1354 executed once.
1355 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
1356 * Added support for a Yotta specific configuration file -
1357 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +01001358 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +01001359 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +01001360 * Renamed source file library/net.c to library/net_sockets.c to avoid
1361 naming collision in projects which also have files with the common name
1362 net.c. For consistency, the corresponding header file, net.h, is marked as
1363 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +01001364 * Changed the strategy for X.509 certificate parsing and validation, to no
1365 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001366
Simon Butcher46125fb2016-06-27 19:43:55 +01001367= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001368
Janos Follathcc4eba72016-02-10 16:25:55 +00001369Security
Janos Follathe43b81a2016-02-10 16:25:55 +00001370 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +00001371 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +00001372 * Fix potential integer overflow to buffer overflow in
1373 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +01001374 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +01001375 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +00001376 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
1377 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +00001378
Simon Butcher3fe6cd32016-04-26 19:51:29 +01001379Features
1380 * Support for platform abstraction of the standard C library time()
1381 function.
1382
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001383Bugfix
1384 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
1385 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001386 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +00001387 * Fix potential build failures related to the 'apidoc' target, introduced
1388 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001389 * Fix issue in Makefile that prevented building using armar. #386
Antonin Décimo36e89b52019-01-23 15:24:37 +01001390 * Fix memory leak that occurred only when ECJPAKE was enabled and ECDHE and
Janos Follath4ae5c292016-02-10 11:27:43 +00001391 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +00001392 * Fix an issue that caused valid certificates to be rejected whenever an
1393 expired or not yet valid certificate was parsed before a valid certificate
1394 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +01001395 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +00001396 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +01001397 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +00001398 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
1399 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +01001400 * Fix issue that caused a crash if invalid curves were passed to
1401 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +01001402 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +01001403 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +01001404 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +01001405 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001406
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +01001407Changes
1408 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
1409 don't use the optimized assembly for bignum multiplication. This removes
1410 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +01001411 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +01001412 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
1413 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +01001414 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
1415 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +01001416
1417= mbed TLS 2.2.1 released 2016-01-05
1418
1419Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +01001420 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +01001421 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +00001422 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +01001423 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
1424 SLOTH attack on TLS 1.2 server authentication (other attacks from the
1425 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001426 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +00001427
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001428Bugfix
1429 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
1430 * Fix bug in certificate validation that caused valid chains to be rejected
1431 when the first intermediate certificate has pathLenConstraint=0. Found by
1432 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +00001433 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +00001434 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +01001435 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001436 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +02001437 datagram if a single record in a datagram is unexpected, instead only
1438 drop the record and look at subsequent records (if any are present) in
1439 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +02001440
1441= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +00001442
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +02001443Security
1444 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
1445 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +00001446 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001447 * Fix potential heap corruption on Windows when
1448 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
1449 triggered remotely. Found by Guido Vranken, Intelworks.
1450 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +02001451 Cannot be triggered remotely unless you create X.509 certificates based
1452 on untrusted input or write keys of untrusted origin. Found by Guido
1453 Vranken, Intelworks.
1454 * The X509 max_pathlen constraint was not enforced on intermediate
1455 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001456 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001457
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001458Features
1459 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
1460 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001461 * Added a key extraction callback to accees the master secret and key
1462 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +02001463
1464Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +00001465 * Self-signed certificates were not excluded from pathlen counting,
1466 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001467 provided by Janos Follath. #319
1468 * Fix build error with configurations where ECDHE-PSK is the only key
1469 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001470 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +02001471 ECHD-ECDSA if the only key exchange. Multiple reports. #310
1472 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +02001473 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +09001474 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
1475 size/curve against the profile. Before that, there was no way to set a
1476 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001477 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +01001478 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
1479 Found by Kurt Danielson. #292
1480 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001481 * Fix bug in ASN.1 encoding of booleans that caused generated CA
1482 certificates to be rejected by some applications, including OS X
1483 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +01001484
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +01001485Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +01001486 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
1487 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001488
1489= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +01001490
1491Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +02001492 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
1493 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +01001494 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +02001495 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +01001496 once in the same handhake and mbedtls_ssl_conf_psk() was used.
1497 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
1498 remotely.
1499 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +01001500 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +01001501 Found by Guido Vranken, Intelworks. Not triggerable remotely.
1502 * Fix potential buffer overflow in mbedtls_mpi_read_string().
1503 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
1504 of TLS, but might be in other uses. On 32 bit machines, requires reading a
1505 string of close to or larger than 1GB to exploit; on 64 bit machines, would
1506 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +02001507 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +01001508 on crafted PEM input data. Found and fix provided by Guido Vranken,
1509 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +02001510 accept PEM data from an untrusted source.
1511 * Fix possible heap buffer overflow in base64_encoded() when the input
1512 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +01001513 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +01001514 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001515 the same mbedtls_ssl_config object and memory allocation fails. Found by
1516 Guido Vranken, Intelworks. Cannot be forced remotely.
1517 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +01001518 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001519 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +01001520 Found by Guido Vranken, Intelworks.
1521
1522Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +01001523 * Fix compile error in net.c with musl libc. Found and patch provided by
1524 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +01001525 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +01001526
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001527Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001528 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
1529 domain names are compliant with RFC 1035.
1530 * Fixed paths for check_config.h in example config files. (Found by bachp)
1531 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001532
1533= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001534
1535Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001536 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +01001537 signatures. (Found by Florian Weimer, Red Hat.)
1538 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +02001539 * Fix possible client-side NULL pointer dereference (read) when the client
1540 tries to continue the handshake after it failed (a misuse of the API).
1541 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +01001542 afl-fuzz.)
1543
1544Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +02001545 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
1546 * Fix off-by-one error in parsing Supported Point Format extension that
1547 caused some handshakes to fail.
1548
1549Changes
1550 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
1551 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +01001552 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001553 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001554 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001555 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +02001556 detected and mbedtls_ssl_read() will return
1557 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001558 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001559
1560= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +02001561
1562Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +02001563 * Added support for yotta as a build system.
1564 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001565
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +02001566Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001567 * Fix segfault in the benchmark program when benchmarking DHM.
1568 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +02001569 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +02001570 * Fix bug when parsing a ServerHello without extensions (found by David
1571 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +02001572 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
1573 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +02001574 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
1575 installed (found by Rawi666).
1576 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +02001577 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +02001578 (found by robotanarchy) (#232).
1579 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +02001580 tests (found by robotanarchy) (#232).
1581 * Fix missing -static-libgcc when building shared libraries for Windows
1582 with make.
Simon Butcher52754592015-09-03 13:06:01 +01001583 * Fix link error when building shared libraries for Windows with make.
1584 * Fix error when loading libmbedtls.so.
1585 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
1586 be always used (found by dcb314) (#235)
1587 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
1588 result trying to unlock an unlocked mutex on invalid input (found by
1589 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001590 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +02001591 * Fix memory corruption on client with overlong PSK identity, around
1592 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001593 Aleksandrs Saveljevs) (#238)
1594 * Fix unused function warning when using MBEDTLS_MDx_ALT or
1595 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +02001596 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
1597
1598Changes
Simon Butcher52754592015-09-03 13:06:01 +01001599 * The PEM parser now accepts a trailing space at end of lines (#226).
1600 * It is now possible to #include a user-provided configuration file at the
1601 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
1602 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001603 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +01001604 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +01001605 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001606 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001607 Hugo Leisink) (#210).
1608 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
1609 length.
1610
1611= mbed TLS 2.0.0 released 2015-07-13
1612
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001613Features
1614 * Support for DTLS 1.0 and 1.2 (RFC 6347).
1615 * Ability to override core functions from MDx, SHAx, AES and DES modules
1616 with custom implementation (eg hardware accelerated), complementing the
1617 ability to override the whole module.
1618 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +02001619 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001620 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +02001621 which algorithms and key sizes (curves for ECDSA) are acceptable.
1622 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001623 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001624 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001625 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001626
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +02001627API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +02001628 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
1629 You now need to link to all of them if you use TLS for example.
1630 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001631 Some names have been further changed to make them more consistent.
Antonin Décimo36e89b52019-01-23 15:24:37 +01001632 Migration helpers scripts/rename.pl and include/mbedtls/compat-1.3.h are
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001633 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnarde6bdc442014-09-17 11:34:57 +02001634 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001635 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001636 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001637 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +02001638 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001639 * The following _init() functions that could return errors have
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +02001640 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001641 should generally be the first function called on this context after init:
1642 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001643 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
1644 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001645 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001646 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Tillmann Karras588ad502015-09-25 04:27:22 +02001647 Note that for mbedtls_ssl_setup(), you need to be done setting up the
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001648 ssl_config structure before calling it.
1649 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
1650 ssl_set_session() and ssl_set_client_transport_id(), plus
1651 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001652 (see rename.pl and compat-1.3.h above) and their first argument's type
1653 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001654 * ssl_set_bio() changed signature (contexts merged, order switched, one
1655 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001656 * The following functions have been introduced and must be used in callback
1657 implementations (SNI, PSK) instead of their *conf counterparts:
1658 mbedtls_ssl_set_hs_own_cert()
1659 mbedtls_ssl_set_hs_ca_chain()
1660 mbedtls_ssl_set_hs_psk()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001661 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01001662 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001663 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01001664 pointer, parameters reordered).
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001665 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
1666 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02001667 * The SSL debug callback gained two new arguments (file name, line number).
1668 * Debug modes were removed.
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001669 * mbedtls_ssl_conf_truncated_hmac() now returns void.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001670 * mbedtls_memory_buffer_alloc_init() now returns void.
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001671 * X.509 verification flags are now an uint32_t. Affect the signature of:
1672 mbedtls_ssl_get_verify_result()
1673 mbedtls_x509_ctr_verify_info()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001674 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001675 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01001676 * The following functions changed prototype to avoid an in-out length
1677 parameter:
1678 mbedtls_base64_encode()
1679 mbedtls_base64_decode()
1680 mbedtls_mpi_write_string()
1681 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02001682 * In the NET module, all "int" and "int *" arguments for file descriptors
1683 changed type to "mbedtls_net_context *".
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02001684 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02001685 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
1686 return void.
Antonin Décimo36e89b52019-01-23 15:24:37 +01001687 * ecdsa_write_signature() gained an additional md_alg argument and
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02001688 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02001689 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02001690 * Last argument of x509_crt_check_key_usage() and
1691 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01001692 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
1693 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
1694 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01001695 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02001696 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
1697 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
1698 length parameter to include the terminating null byte for PEM input.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00001699 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02001700 * calloc() is now used instead of malloc() everywhere. API of platform
1701 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02001702 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001703 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
1704 (support for renegotiation now needs explicit enabling in config.h).
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02001705 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
1706 in config.h
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001707 * net_connect() and net_bind() have a new 'proto' argument to choose
1708 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02001709 Their 'port' argument type is changed to a string.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001710 * Some constness fixes
1711
1712Removals
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001713 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02001714 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
1715 mbedtls_ecp_muladd().
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02001716 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
1717 (use generic functions from md.h)
1718 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02001719 waiting function.
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02001720 * Removed test DHM parameters from the test certs module.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001721 * Removed the PBKDF2 module (use PKCS5).
1722 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
1723 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
1724 * Removed openssl.h (very partial OpenSSL compatibility layer).
1725 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
1726 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
1727 been removed (compiler is required to support 32-bit operations).
1728 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
1729 * Removed test program o_p_test, the script compat.sh does more.
1730 * Removed test program ssl_test, superseded by ssl-opt.sh.
1731 * Removed helper script active-config.pl
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001732
1733New deprecations
1734 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
1735 argument (allowing memory savings if HMAC is not used)
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001736
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001737Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001738 * Renamed a few headers to include _internal in the name. Those headers are
1739 not supposed to be included by users.
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02001740 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
1741 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001742 * Changed cipher_base_t into an opaque structure.
1743 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01001744 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001745 * Removed r and s from ecdsa_context
1746 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001747
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001748Default behavior changes
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02001749 * The default minimum TLS version is now TLS 1.0.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001750 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
1751 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001752 * Support for receiving SSLv2 ClientHello is now disabled by default at
1753 compile time.
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01001754 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02001755 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
1756 enabled in the default configuration, this is only noticeable if using a
1757 custom config.h
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01001758 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001759 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
1760 chain verification.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01001761 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02001762 * The following functions are now case-sensitive:
1763 mbedtls_cipher_info_from_string()
1764 mbedtls_ecp_curve_info_from_name()
1765 mbedtls_md_info_from_string()
1766 mbedtls_ssl_ciphersuite_from_string()
1767 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001768
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001769Requirement changes
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001770 * The minimum MSVC version required is now 2010 (better C99 support).
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001771 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001772 * Compiler is required to support C99 types such as long long and uint32_t.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001773
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001774API changes from the 1.4 preview branch
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001775 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
1776 new prototype, and mbedtls_ssl_set_read_timeout().
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001777 * The following functions now return void:
1778 mbedtls_ssl_conf_transport()
1779 mbedtls_ssl_conf_max_version()
1780 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02001781 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
1782 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
1783 an example implementation, see mbedtls_timing_delay_context and
1784 mbedtls_timing_set/get_delay().
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02001785 * With UDP sockets, it is no longer necessary to call net_bind() again
1786 after a successful net_accept().
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001787
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001788Changes
1789 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
1790 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001791 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
1792 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001793
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001794= mbed TLS 1.3 branch
1795
1796Security
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02001797 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01001798 extendedKeyUsage on the leaf certificate was lost (results not accessible
1799 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02001800 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
1801 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001802
1803Features
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02001804 * Improve ECC performance by using more efficient doubling formulas
1805 (contributed by Peter Dettman).
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02001806 * Add x509_crt_verify_info() to display certificate verification results.
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02001807 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02001808 (contributed by Daniel Kahn Gillmor).
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01001809 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
1810 * Add support for id-at-uniqueIdentifier in X.509 names.
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001811 * Add support for overriding snprintf() (except on Windows) and exit() in
1812 the platform layer.
1813 * Add an option to use macros instead of function pointers in the platform
1814 layer (helps get rid of unwanted references).
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00001815 * Improved Makefiles for Windows targets by fixing library targets and making
1816 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00001817 * The benchmark program also prints heap usage for public-key primitives
1818 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
1819 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
1820 speed and RAM (heap only for now) usage.
1821 * New script memory.sh helps measuring the ROM and RAM requirements of two
1822 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001823 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001824 warnings on use of deprecated functions (with GCC and Clang only).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001825 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001826 errors on use of deprecated functions.
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001827
1828Bugfix
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01001829 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01001830 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001831 * Fix bug in entropy.c when THREADING_C is also enabled that caused
1832 entropy_free() to crash (thanks to Rafał Przywara).
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001833 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
1834 once on the same context.
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001835 * Fix bug in ssl_mail_client when password is longer that username (found
1836 by Bruno Pape).
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001837 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1838 (detected by Clang's 3.6 UBSan).
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001839 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
1840 initialized but not set (found by pravic).
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001841 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
1842 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001843 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001844 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1845 ssl_write() is called before the handshake is finished (introduced in
1846 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001847 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1848 rejected.
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001849 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001850 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001851 * Fix hardclock() (only used in the benchmarking program) with some
1852 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001853 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001854 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1855 platforms.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001856 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001857 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
1858 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1859 in 1.3.10).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001860 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001861 * Add missing dependency on SHA-256 in some x509 programs (reported by
1862 Gergely Budai).
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001863 * Fix bug related to ssl_set_curves(): the client didn't check that the
1864 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001865
1866Changes
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001867 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1868 * Remove potential sources of timing variations (some contributed by Pascal
1869 Junod).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001870 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001871 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001872 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001873 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001874 more flexible (warning: OFLAGS is not used any more) (see the README)
1875 (contributed by Alon Bar-Lev).
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001876 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001877 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001878 * Move from SHA-1 to SHA-256 in example programs using signatures
1879 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001880 * Remove some unneeded inclusions of header files from the standard library
1881 "minimize" others (eg use stddef.h if only size_t is needed).
1882 * Change #include lines in test files to use double quotes instead of angle
1883 brackets for uniformity with the rest of the code.
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001884 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001885
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001886= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001887Security
1888 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001889 full and polarssl_free() is called (found by Mark Hasemeyer)
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001890 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1891 not by default).
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001892 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001893 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001894 client certificate) (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001895 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001896 (TLS server is not affected if it doesn't ask for a client certificate)
1897 (found using Codenomicon Defensics).
1898 * Fix potential stack overflow while parsing crafted X.509 certificates
1899 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001900 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001901 * Fix timing difference that could theoretically lead to a
1902 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
1903 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001904
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001905Features
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001906 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
1907 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
1908 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001909 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001910 * Add x509_crl_parse_der().
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001911 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
1912 length of an X.509 verification chain.
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001913 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001914 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
Paul Bakker6152b022015-04-14 15:00:09 +02001915 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001916 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001917 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1918 a compatible enough libc (eg uClibc).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001919 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001920 while using the default ciphersuite list.
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001921 * Added new error codes and debug messages about selection of
1922 ciphersuite/certificate.
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001923
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001924Bugfix
1925 * Stack buffer overflow if ctr_drbg_update() is called with too large
1926 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001927 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
1928 if memory_buffer_alloc_init() was called with buf not aligned and len not
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001929 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
1930 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001931 by Julian Ospald).
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001932 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001933 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1934 multiple of 8 (found by Gergely Budai).
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001935 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1936 Peter Vaskovic).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001937 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001938 * ssl_get_verify_result() now works even if the handshake was aborted due
1939 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001940 * Skip writing and parsing signature_algorithm extension if none of the
1941 key exchanges enabled needs certificates. This fixes a possible interop
1942 issue with some servers when a zero-length extension was sent. (Reported
1943 by Peter Dettman.)
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001944 * On a 0-length input, base64_encode() did not correctly set output length
1945 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001946
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001947Changes
1948 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
1949 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001950 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001951 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001952 * Forbid repeated extensions in X.509 certificates.
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001953 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001954 * A specific error is now returned when there are ciphersuites in common
1955 but none of them is usable due to external factors such as no certificate
Paul Bakkere522d0f2015-01-14 16:12:48 +01001956 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001957 * It is now possible to disable negotiation of truncated HMAC server-side
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001958 at runtime with ssl_set_truncated_hmac().
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001959 * Example programs for SSL client and server now disable SSLv3 by default.
1960 * Example programs for SSL client and server now disable RC4 by default.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001961 * Use platform.h in all test suites and programs.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001962
Paul Bakker9eac4f72014-10-20 13:56:15 +02001963= PolarSSL 1.3.9 released 2014-10-20
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001964Security
1965 * Lowest common hash was selected from signature_algorithms extension in
1966 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001967 * Remotely-triggerable memory leak when parsing some X.509 certificates
Paul Bakkerb082bb52014-10-20 13:37:51 +02001968 (server is not affected if it doesn't ask for a client certificate)
1969 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001970 * Remotely-triggerable memory leak when parsing crafted ClientHello
Paul Bakkerb082bb52014-10-20 13:37:51 +02001971 (not affected if ECC support was compiled out) (found using Codenomicon
1972 Defensics).
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001973
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001974Bugfix
1975 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001976 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001977 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001978 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001979 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001980 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1981 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001982 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001983 * ssl_read() could return non-application data records on server while
1984 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001985 * Server-initiated renegotiation would fail with non-blocking I/O if the
1986 write callback returned WANT_WRITE when requesting renegotiation.
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001987 * ssl_close_notify() could send more than one message in some circumstances
1988 with non-blocking I/O.
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001989 * Fix compiler warnings on iOS (found by Sander Niemeijer).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001990 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001991 * Fix compile error with armcc in mpi_is_prime()
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001992 * Fix potential bad read in parsing ServerHello (found by Adrien
1993 Vialletelle).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001994
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001995Changes
1996 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
1997 standard defining how to use SHA-2 with SSL 3.0).
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001998 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
1999 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02002000 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
2001 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02002002 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2003 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02002004 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
2005 RSA keys.
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02002006 * Accept spaces at end of line or end of buffer in base64_decode().
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02002007 * X.509 certificates with more than one AttributeTypeAndValue per
2008 RelativeDistinguishedName are not accepted any more.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02002009
Paul Bakker1910aa72014-07-11 11:28:56 +02002010= PolarSSL 1.3.8 released 2014-07-11
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02002011Security
2012 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2013 It was possible to crash the server (and client) using crafted messages
2014 when a GCM suite was chosen.
2015
Paul Bakkerc6ece492014-05-22 15:45:03 +02002016Features
2017 * Add CCM module and cipher mode to Cipher Layer
2018 * Support for CCM and CCM_8 ciphersuites
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02002019 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
2020 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02002021 * Blowfish in the cipher layer now supports variable length keys.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02002022 * Add example config.h for PSK with CCM, optimized for low RAM usage.
2023 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02002024 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
2025 from the default list (inactive by default).
Paul Bakker23647b42014-07-04 15:00:12 +02002026 * Add server-side enforcement of sent renegotiation requests
2027 (ssl_set_renegotiation_enforced())
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02002028 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
2029 ciphersuites to use and save some memory if the list is small.
Paul Bakkerc6ece492014-05-22 15:45:03 +02002030
Paul Bakker863989b2014-06-12 21:49:01 +02002031Changes
2032 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
2033 required on some platforms (e.g. OpenBSD)
Paul Bakker34617722014-06-13 17:20:13 +02002034 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2035 against unwanted compiler optimizations
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02002036 * md_list() now returns hashes strongest first
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02002037 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
2038 strongest offered by client.
Paul Bakker28476e22014-07-01 15:59:04 +02002039 * All public contexts have _init() and _free() functions now for simpler
2040 usage pattern
Paul Bakker863989b2014-06-12 21:49:01 +02002041
Paul Bakker5593f7c2014-05-06 10:29:28 +02002042Bugfix
2043 * Fix in debug_print_msg()
Paul Bakker1ebc0c52014-05-22 15:47:58 +02002044 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakkerdff31392014-05-22 15:06:41 +02002045 * Remove less-than-zero checks on unsigned numbers
Paul Bakker0f651c72014-05-22 15:12:19 +02002046 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2047 size (found by TrustInSoft)
Paul Bakker49033ba2014-06-12 21:46:13 +02002048 * Fix WSAStartup() return value check (found by Peter Vaskovic)
2049 * Other minor issues (found by Peter Vaskovic)
2050 * Fix symlink command for cross compiling with CMake (found by Andre
2051 Heinecke)
Paul Bakker3c38f292014-06-13 17:37:46 +02002052 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02002053 * Very small records were incorrectly rejected when truncated HMAC was in
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02002054 use with some ciphersuites and versions (RC4 in all versions, CBC with
2055 versions < TLS 1.1).
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02002056 * Very large records using more than 224 bytes of padding were incorrectly
2057 rejected with CBC-based ciphersuites and TLS >= 1.1
2058 * Very large records using less padding could cause a buffer overread of up
2059 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02002060 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
2061 been removed in 1.3.6.)
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02002062 * Restore ability to locally trust a self-signed cert that is not a proper
2063 CA for use as an end entity certificate. (This had been removed in
2064 1.3.6.)
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07002065 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02002066 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2067 interpret semicolons as comment delimiters (found by Barry K. Nathan).
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02002068 * Fix off-by-one error in parsing Supported Point Format extension that
2069 caused some handshakes to fail.
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02002070 * Fix possible miscomputation of the premaster secret with DHE-PSK key
2071 exchange that caused some handshakes to fail with other implementations.
2072 (Failure rate <= 1/255 with common DHM moduli.)
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02002073 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerd5983182014-07-04 13:50:31 +02002074 * Fix base64_decode() to return and check length correctly (in case of
2075 tight buffers)
Paul Bakker6c343d72014-07-10 14:36:19 +02002076 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
2077 by Hui Dong)
Paul Bakker5593f7c2014-05-06 10:29:28 +02002078
Paul Bakker47431b62014-05-02 13:27:13 +02002079= PolarSSL 1.3.7 released on 2014-05-02
Paul Bakkereaebbd52014-04-25 15:04:14 +02002080Features
Paul Bakkerc73079a2014-04-25 16:34:30 +02002081 * debug_set_log_mode() added to determine raw or full logging
2082 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker0f90d7d2014-04-30 11:49:44 +02002083 * version_check_feature() added to check for compile-time options at
2084 run-time
Paul Bakker92478c32014-04-25 15:18:34 +02002085
Paul Bakker088c5c52014-04-25 11:11:10 +02002086Changes
2087 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
2088 checked and filled in the relevant module headers
Paul Bakker92478c32014-04-25 15:18:34 +02002089 * Debug module only outputs full lines instead of parts
Paul Bakker63844402014-04-30 15:34:12 +02002090 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02002091 * AES-NI now compiles with "old" assemblers too
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02002092 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker088c5c52014-04-25 11:11:10 +02002093
Paul Bakkere92f73d2014-04-18 14:08:26 +02002094Bugfix
2095 * Only iterate over actual certificates in ssl_write_certificate_request()
2096 (found by Matthew Page)
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02002097 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
2098 Karger)
Paul Bakkerfdba4682014-04-25 11:48:35 +02002099 * cert_write app should use subject of issuer certificate as issuer of cert
Paul Bakker61885c72014-04-25 12:59:03 +02002100 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
2101 ciphersuites, for full SSL frames of data.
Paul Bakkera7036632014-04-30 10:15:38 +02002102 * Improve interoperability by not writing extension length in ClientHello /
2103 ServerHello when no extensions are present (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02002104 * rsa_check_pubkey() now allows an E up to N
Paul Bakkerf96f7b62014-04-30 16:02:38 +02002105 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakker33dc46b2014-04-30 16:11:39 +02002106 * mpi_fill_random() was creating numbers larger than requested on
2107 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02002108 * Fix dependencies issues in X.509 test suite.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02002109 * Some parts of ssl_tls.c were compiled even when the module was disabled.
Markus Pfeiffera26a0052014-04-22 20:16:15 +00002110 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Barry K. Nathancf975f52014-04-23 17:40:25 -07002111 * Fix detection of Clang on some Apple platforms with CMake
2112 (found by Barry K. Nathan)
Paul Bakkere92f73d2014-04-18 14:08:26 +02002113
Paul Bakker784b04f2014-04-11 15:33:59 +02002114= PolarSSL 1.3.6 released on 2014-04-11
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002115
Paul Bakker27e36d32014-04-08 12:33:37 +02002116Features
2117 * Support for the ALPN SSL extension
Paul Bakker1cfc4582014-04-09 15:25:13 +02002118 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002119 * Enable verification of the keyUsage extension for CA and leaf
Paul Bakker59366212014-04-09 15:55:20 +02002120 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002121 * Enable verification of the extendedKeyUsage extension
2122 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker27e36d32014-04-08 12:33:37 +02002123
Paul Bakker4984d3c2014-04-04 15:39:37 +02002124Changes
2125 * x509_crt_info() now prints information about parsed extensions as well
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02002126 * pk_verify() now returns a specific error code when the signature is valid
2127 but shorter than the supplied length.
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02002128 * Use UTC time to check certificate validity.
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02002129 * Reject certificates with times not in UTC, per RFC 5280.
Paul Bakker4984d3c2014-04-04 15:39:37 +02002130
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002131Security
2132 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
2133 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02002134 * The notAfter date of some certificates was no longer checked since 1.3.5.
2135 This affects certificates in the user-supplied chain except the top
2136 certificate. If the user-supplied chain contains only one certificates,
2137 it is not affected (ie, its notAfter date is properly checked).
Paul Bakker4224bc02014-04-08 14:36:50 +02002138 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2139 TrustInSoft)
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002140
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002141Bugfix
2142 * The length of various ClientKeyExchange messages was not properly checked.
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01002143 * Some example server programs were not sending the close_notify alert.
Paul Bakker75a28602014-03-31 12:08:17 +02002144 * Potential memory leak in mpi_exp_mod() when error occurs during
2145 calculation of RR.
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02002146 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02002147 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
2148 Gergely Budai).
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02002149 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
2150 (found by Gergely Budai)
Shuo Chen95a0d112014-04-04 21:04:40 -07002151 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
2152 Shuo Chen).
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01002153 * oid_get_numeric_string() used to truncate the output without returning an
2154 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01002155 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02002156 * Calling pk_debug() on an RSA-alt key would segfault.
2157 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
Paul Bakker16300582014-04-11 13:28:43 +02002158 * Potential buffer overwrite in pem_write_buffer() because of low length
2159 indication (found by Thijs Alkemade)
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02002160 * EC curves constants, which should be only in ROM since 1.3.3, were also
2161 stored in RAM due to missing 'const's (found by Gergely Budai).
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002162
Paul Bakker96d52652014-03-26 16:55:50 +01002163= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002164Features
2165 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002166 * Option to set the Curve preference order (disabled by default)
Paul Bakker6a28e722014-02-06 13:41:55 +01002167 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakkerf2561b32014-02-06 15:11:55 +01002168 * Ability to provide alternate timing implementation
Paul Bakker2ceda572014-02-06 15:55:25 +01002169 * Ability to force the entropy module to use SHA-256 as its basis
2170 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002171 * Testing script ssl-opt.sh added for testing 'live' ssl option
2172 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01002173 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Paul Bakker66ff70d2014-03-26 11:54:05 +01002174 * Entropy module now supports seed writing and reading
Paul Bakker6a28e722014-02-06 13:41:55 +01002175
2176Changes
2177 * Deprecated the Memory layer
Paul Bakker47703a02014-02-06 15:01:20 +01002178 * entropy_add_source(), entropy_update_manual() and entropy_gather()
2179 now thread-safe if POLARSSL_THREADING_C defined
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01002180 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01002181 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2182 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002183 * Revamped the compat.sh interoperatibility script to include support for
2184 testing against GnuTLS
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002185 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Paul Bakker674e0b02014-03-26 13:26:52 +01002186 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002187
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002188Security
2189 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01002190 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002191 attack was already impossible when authentication is required).
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01002192 * Check notBefore timestamp of certificates and CRLs from the future.
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01002193 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002194 * Fixed possible buffer overflow with overlong PSK
Paul Bakker91c61bc2014-03-26 14:06:55 +01002195 * Possible remotely-triggered out-of-bounds memory access fixed (found by
2196 TrustInSoft)
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002197
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002198Bugfix
2199 * ecp_gen_keypair() does more tries to prevent failure because of
2200 statistics
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002201 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Paul Bakkercd6d69a2014-02-06 15:43:21 +01002202 * Fixed testing with out-of-source builds using cmake
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01002203 * Fixed version-major intolerance in server
Paul Bakker3d52ab72014-03-07 10:33:55 +01002204 * Fixed CMake symlinking on out-of-source builds
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01002205 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01002206 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Alex Wilson73491422014-03-06 00:04:09 +10002207 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2208 Alex Wilson.)
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002209 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
2210 * m_sleep() was sleeping twice too long on most Unix platforms.
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01002211 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002212 send() would return an EAGAIN error when sending the ticket.
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002213 * ssl_cache was leaking memory when reusing a timed out entry containing a
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002214 client certificate.
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01002215 * ssl_srv was leaking memory when client presented a timed out ticket
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002216 containing a client certificate
Paul Bakker3d6504a2014-03-17 13:41:51 +01002217 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2218 out_ctr failed
Paul Bakker77f4f392014-03-26 15:28:55 +01002219 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2220 of one of them failed
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01002221 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakker5fff23b2014-03-26 15:34:54 +01002222 * x509_get_current_time() uses localtime_r() to prevent thread issues
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002223
Paul Bakker2aca2412014-01-27 11:49:46 +01002224= PolarSSL 1.3.4 released on 2014-01-27
Paul Bakker3eb96732014-01-22 13:08:19 +01002225Features
Paul Bakker0ac99ca2014-01-22 13:08:44 +01002226 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakker5862eee2014-01-22 14:18:03 +01002227 * Support for RIPEMD-160
Paul Bakker556efba2014-01-24 15:38:12 +01002228 * Support for AES CFB8 mode
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01002229 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker3eb96732014-01-22 13:08:19 +01002230
2231Bugfix
2232 * Potential memory leak in bignum_selftest()
2233 * Replaced expired test certificate
Paul Bakkerd75ba402014-01-24 16:11:17 +01002234 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakkerb84582b2014-01-27 12:23:43 +01002235 * net module handles timeouts on blocking sockets better (found by Tilman
2236 Sauerbeck)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01002237 * Assembly format fixes in bn_mul.h
2238
2239Security
Paul Bakkerb84582b2014-01-27 12:23:43 +01002240 * Missing MPI_CHK calls added around unguarded mpi calls (found by
2241 TrustInSoft)
Paul Bakker3eb96732014-01-22 13:08:19 +01002242
Paul Bakker5bc07a32013-12-31 10:57:44 +01002243= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker014f1432013-12-02 14:54:01 +01002244Features
2245 * EC key generation support in gen_key app
Paul Bakker9dc53a92013-12-02 14:55:28 +01002246 * Support for adhering to client ciphersuite order preference
2247 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
Paul Bakker48d78a52013-12-05 16:11:38 +01002248 * Support for Curve25519
Paul Bakkerfdf94692013-12-17 13:09:31 +01002249 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
Paul Bakker5a607d22013-12-17 14:33:42 +01002250 * Support for IPv6 in the NET module
Paul Bakker23116fd2013-12-30 14:09:47 +01002251 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakkerf9c49532013-12-19 15:40:58 +01002252 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakker014f1432013-12-02 14:54:01 +01002253
Paul Bakker7aa03752013-11-26 17:37:31 +01002254Changes
2255 * gen_prime() speedup
2256 * Speedup of ECP multiplication operation
2257 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerc3d0d072013-12-02 14:50:49 +01002258 * Dropped use of readdir_r() instead of readdir() with threading support
Paul Bakker4040d7e2013-12-02 14:52:57 +01002259 * More constant-time checks in the RSA module
Paul Bakkerb14817d2013-12-02 22:03:23 +01002260 * Split off curves from ecp.c into ecp_curves.c
Paul Bakker5ab68ba2013-12-17 13:10:48 +01002261 * Curves are now stored fully in ROM
Paul Bakkerc7387912013-12-31 10:32:50 +01002262 * Memory usage optimizations in ECP module
Paul Bakkera8fd3e32013-12-31 11:54:08 +01002263 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker7aa03752013-11-26 17:37:31 +01002264
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002265Bugfix
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01002266 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002267 * Fixed X.509 hostname comparison (with non-regular characters)
Paul Bakkera9a028e2013-11-21 17:31:06 +01002268 * SSL now gracefully handles missing RNG
Paul Bakker7aa03752013-11-26 17:37:31 +01002269 * Missing defines / cases for RSA_PSK key exchange
2270 * crypt_and_hash app checks MAC before final decryption
Paul Bakker6f0636a2013-12-16 15:24:05 +01002271 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakkerf70fe812013-12-16 16:43:10 +01002272 * Memory leak in benchmark application
Paul Bakker1a56fc92013-12-19 13:51:24 +01002273 * Fixed x509_crt_parse_path() bug on Windows platforms
Paul Bakker6ea1a952013-12-31 11:16:03 +01002274 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2275 TrustInSoft)
Paul Bakker6992eb72013-12-31 11:35:16 +01002276 * Fixed potential overflow in certificate size verification in
2277 ssl_write_certificate() (found by TrustInSoft)
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002278
Paul Bakker956c9e02013-12-19 14:42:28 +01002279Security
2280 * Possible remotely-triggered out-of-bounds memory access fixed (found by
2281 TrustInSoft)
2282
Paul Bakkerf4dc1862013-11-04 17:29:42 +01002283= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakker08bb1872013-10-28 14:03:26 +01002284Features
2285 * PK tests added to test framework
Paul Bakker3f917e22013-10-28 14:16:59 +01002286 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker16421222013-10-28 14:37:09 +01002287 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker08bb1872013-10-28 14:03:26 +01002288
Paul Bakker7bc745b2013-10-28 14:39:49 +01002289Changes
2290 * Padding checks in cipher layer are now constant-time
Paul Bakkere1121b62013-10-31 14:37:37 +01002291 * Value comparisons in SSL layer are now constant-time
Paul Bakker7b0be682013-10-29 14:24:37 +01002292 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakkere1121b62013-10-31 14:37:37 +01002293 * SSL Renegotiation was refactored
Paul Bakker7bc745b2013-10-28 14:39:49 +01002294
Paul Bakker677377f2013-10-28 12:54:26 +01002295Bugfix
Paul Bakker16421222013-10-28 14:37:09 +01002296 * More stringent checks in cipher layer
Paul Bakker677377f2013-10-28 12:54:26 +01002297 * Server does not send out extensions not advertised by client
Paul Bakker45a2c8d2013-10-28 12:57:08 +01002298 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker68037da2013-10-28 14:02:40 +01002299 * Misc fixes and additions to dependency checks
Paul Bakker50dc8502013-10-28 21:19:10 +01002300 * Const correctness
Paul Bakker93c6aa42013-10-28 22:28:09 +01002301 * cert_write with selfsign should use issuer_name as subject_name
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01002302 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerfa6a6202013-10-28 18:48:30 +01002303 * Defines to handle UEFI environment under MSVC
Paul Bakkere1121b62013-10-31 14:37:37 +01002304 * Server-side initiated renegotiations send HelloRequest
Paul Bakker677377f2013-10-28 12:54:26 +01002305
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002306= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakkerb799dec2013-10-11 10:03:27 +02002307Features
2308 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakker376e8152013-10-15 12:44:23 +02002309 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerf34673e2013-10-15 12:46:17 +02002310 * Support for RSA-PSK key-exchange and ciphersuites
Paul Bakkerb799dec2013-10-11 10:03:27 +02002311
Paul Bakkerddba8822013-10-11 09:21:56 +02002312Changes
2313 * RSA blinding locks for a smaller amount of time
Paul Bakker16770332013-10-11 09:59:44 +02002314 * TLS compression only allocates working buffer once
Paul Bakkerbe089b02013-10-14 15:51:50 +02002315 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkera7ea6a52013-10-15 11:55:10 +02002316 * config.h is more script-friendly
Paul Bakkerddba8822013-10-11 09:21:56 +02002317
2318Bugfix
2319 * Missing MSVC defines added
2320 * Compile errors with POLARSSL_RSA_NO_CRT
2321 * Header files with 'polarssl/'
Paul Bakkerfcc17212013-10-11 09:36:52 +02002322 * Const correctness
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02002323 * Possible naming collision in dhm_context
Paul Bakker4aa40d42013-10-11 10:49:24 +02002324 * Better support for MSVC
Paul Bakkerb7c13122013-10-11 10:51:32 +02002325 * threading_set_alt() name
Paul Bakker5191e922013-10-11 10:54:28 +02002326 * Added missing x509write_crt_set_version()
Paul Bakkerddba8822013-10-11 09:21:56 +02002327
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002328= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker41c83d32013-03-20 14:39:14 +01002329Features
2330 * Elliptic Curve Cryptography module added
2331 * Elliptic Curve Diffie Hellman module added
2332 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
2333 (ECDHE-based ciphersuites)
Paul Bakkerc8676782013-08-28 12:15:11 +02002334 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
2335 (ECDSA-based ciphersuites)
Paul Bakker8f4ddae2013-04-15 15:09:54 +02002336 * Ability to specify allowed ciphersuites based on the protocol version.
Paul Bakkerb91c2b52013-04-19 16:05:16 +02002337 * PSK and DHE-PSK based ciphersuites added
Paul Bakker6e339b52013-07-03 13:37:05 +02002338 * Memory allocation abstraction layer added
2339 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
Paul Bakker2466d932013-09-28 14:40:38 +02002340 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002341 * Public Key abstraction layer added
Paul Bakkerf85778e2013-07-19 14:55:25 +02002342 * Parsing Elliptic Curve keys
2343 * Parsing Elliptic Curve certificates
2344 * Support for max_fragment_length extension (RFC 6066)
2345 * Support for truncated_hmac extension (RFC 6066)
Paul Bakkerda4d1c32013-08-14 12:24:34 +02002346 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
2347 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
Paul Bakker936539a2013-08-14 13:49:20 +02002348 * Support for session tickets (RFC 5077)
Paul Bakkerca174fe2013-08-28 16:31:30 +02002349 * Certificate Request (CSR) generation with extensions (key_usage,
2350 ns_cert_type)
Paul Bakker7fb4a792013-09-12 12:00:52 +02002351 * X509 Certificate writing with extensions (basic_constraints,
2352 issuer_key_identifier, etc)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02002353 * Optional blinding for RSA, DHM and EC
Paul Bakker8b817dc2013-09-25 18:03:58 +02002354 * Support for multiple active certificate / key pairs in SSL servers for
Darryl Green11999bb2018-03-13 15:22:58 +00002355 the same host (Not to be confused with SNI!)
Paul Bakker41c83d32013-03-20 14:39:14 +01002356
Paul Bakker9b5798d2013-03-13 13:53:00 +01002357Changes
Paul Bakkerd2f068e2013-08-27 21:19:20 +02002358 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
2359 individually
Paul Bakker68884e32013-01-07 18:20:04 +01002360 * Introduced separate SSL Ciphersuites module that is based on
2361 Cipher and MD information
Paul Bakker9b5798d2013-03-13 13:53:00 +01002362 * Internals for SSL module adapted to have separate IV pointer that is
2363 dynamically set (Better support for hardware acceleration)
Paul Bakkerc70b9822013-04-07 22:00:46 +02002364 * Moved all OID functionality to a separate module. RSA function
2365 prototypes for the RSA sign and verify functions changed as a result
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02002366 * Split up the GCM module into a starts/update/finish cycle
Paul Bakker2fbefde2013-06-29 16:01:15 +02002367 * Client and server now filter sent and accepted ciphersuites on minimum
2368 and maximum protocol version
Paul Bakker0be444a2013-08-27 21:55:01 +02002369 * Ability to disable server_name extension (RFC 6066)
Paul Bakkere2ab84f2013-06-29 18:24:32 +02002370 * Renamed error_strerror() to the less conflicting polarssl_strerror()
2371 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9e36f042013-06-30 14:34:05 +02002372 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakker548957d2013-08-30 10:30:02 +02002373 * All RSA operations require a random generator for blinding purposes
Paul Bakker45f21c72013-09-18 15:33:49 +02002374 * X509 core refactored
2375 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002376 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02002377 * Support faulty X509 v1 certificates with extensions
2378 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakker9b5798d2013-03-13 13:53:00 +01002379
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002380Bugfix
Paul Bakker73d44312013-05-22 13:56:26 +02002381 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02002382 * zlib compression/decompression skipped on empty blocks
Paul Bakker1e6a1752013-07-26 14:10:22 +02002383 * Support for AIX header locations in net.c module
Paul Bakker003dbad2013-09-09 17:26:14 +02002384 * Fixed file descriptor leaks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002385
Paul Bakkeraab30c12013-08-30 11:00:25 +02002386Security
2387 * RSA blinding on CRT operations to counter timing attacks
2388 (found by Cyril Arnaud and Pierre-Alain Fouque)
2389
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02002390
2391= Version 1.2.14 released 2015-05-??
2392
2393Security
2394 * Fix potential invalid memory read in the server, that allows a client to
2395 crash it remotely (found by Caj Larsson).
2396 * Fix potential invalid memory read in certificate parsing, that allows a
2397 client to crash the server remotely if client authentication is enabled
2398 (found using Codenomicon Defensics).
2399 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
2400 https://dl.acm.org/citation.cfm?id=2714625
2401
2402Bugfix
2403 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
2404 * Fix hardclock() (only used in the benchmarking program) with some
2405 versions of mingw64 (found by kxjhlele).
2406 * Fix warnings from mingw64 in timing.c (found by kxjklele).
2407 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
2408 platforms (found with Coverity Scan).
2409
2410= Version 1.2.13 released 2015-02-16
2411Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
2412 this will be made in the 1.2 branch at this point.
2413
2414Security
2415 * Fix remotely-triggerable uninitialised pointer dereference caused by
2416 crafted X.509 certificate (TLS server is not affected if it doesn't ask
2417 for a client certificate) (found using Codenomicon Defensics).
2418 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
2419 (TLS server is not affected if it doesn't ask for a client certificate)
2420 (found using Codenomicon Defensics).
2421 * Fix potential stack overflow while parsing crafted X.509 certificates
2422 (TLS server is not affected if it doesn't ask for a client certificate)
2423 found using Codenomicon Defensics).
2424 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
2425 (TLS server is not affected if it doesn't ask for a client certificate).
2426
2427Bugfix
2428 * Fix potential undefined behaviour in Camellia.
2429 * Fix memory leaks in PKCS#5 and PKCS#12.
2430 * Stack buffer overflow if ctr_drbg_update() is called with too large
2431 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
2432 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
2433 in 1.2.12).
2434 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
2435 Peter Vaskovic).
2436 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
2437 * ssl_get_verify_result() now works even if the handshake was aborted due
2438 to a failed verification (found by Fredrik Axelsson).
2439 * Skip writing and parsing signature_algorithm extension if none of the
2440 key exchanges enabled needs certificates. This fixes a possible interop
2441 issue with some servers when a zero-length extension was sent. (Reported
2442 by Peter Dettman.)
2443 * On a 0-length input, base64_encode() did not correctly set output length
2444 (found by Hendrik van den Boogaard).
2445
2446Changes
2447 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
2448 * Forbid repeated extensions in X.509 certificates.
2449 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
2450 length of an X.509 verification chain (default = 8).
Paul Bakkera6c5ea22014-10-24 16:26:29 +02002451= Version 1.2.12 released 2014-10-24
2452
2453Security
2454 * Remotely-triggerable memory leak when parsing some X.509 certificates
2455 (server is not affected if it doesn't ask for a client certificate).
2456 (Found using Codenomicon Defensics.)
2457
2458Bugfix
2459 * Fix potential bad read in parsing ServerHello (found by Adrien
2460 Vialletelle).
2461 * ssl_close_notify() could send more than one message in some circumstances
2462 with non-blocking I/O.
2463 * x509_crt_parse() did not increase total_failed on PEM error
2464 * Fix compiler warnings on iOS (found by Sander Niemeijer).
2465 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
2466 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
2467 * ssl_read() could return non-application data records on server while
2468 renegotation was pending, and on client when a HelloRequest was received.
2469 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
2470
2471Changes
2472 * X.509 certificates with more than one AttributeTypeAndValue per
2473 RelativeDistinguishedName are not accepted any more.
2474 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2475 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
2476 * Accept spaces at end of line or end of buffer in base64_decode().
2477
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02002478= Version 1.2.11 released 2014-07-11
2479Features
2480 * Entropy module now supports seed writing and reading
2481
2482Changes
2483 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
2484 * Improvements to the CMake build system, contributed by Julian Ospald.
2485 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2486 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
2487 * Improvements to tests/Makefile, contributed by Oden Eriksson.
2488 * Use UTC time to check certificate validity.
2489 * Reject certificates with times not in UTC, per RFC 5280.
2490 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2491 against unwanted compiler optimizations
2492
2493Security
2494 * Forbid change of server certificate during renegotiation to prevent
2495 "triple handshake" attack when authentication mode is optional (the
2496 attack was already impossible when authentication is required).
2497 * Check notBefore timestamp of certificates and CRLs from the future.
2498 * Forbid sequence number wrapping
2499 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2500 TrustInSoft)
2501 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2502 It was possible to crash the server (and client) using crafted messages
2503 when a GCM suite was chosen.
2504
2505Bugfix
2506 * Fixed X.509 hostname comparison (with non-regular characters)
2507 * SSL now gracefully handles missing RNG
2508 * crypt_and_hash app checks MAC before final decryption
2509 * Fixed x509_crt_parse_path() bug on Windows platforms
2510 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2511 TrustInSoft)
2512 * Fixed potential overflow in certificate size verification in
2513 ssl_write_certificate() (found by TrustInSoft)
2514 * Fix ASM format in bn_mul.h
2515 * Potential memory leak in bignum_selftest()
2516 * Replaced expired test certificate
2517 * ssl_mail_client now terminates lines with CRLF, instead of LF
2518 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
2519 * Fixed testing with out-of-source builds using cmake
2520 * Fixed version-major intolerance in server
2521 * Fixed CMake symlinking on out-of-source builds
2522 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2523 Alex Wilson.)
2524 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2525 out_ctr failed
2526 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2527 of one of them failed
2528 * x509_get_current_time() uses localtime_r() to prevent thread issues
2529 * Some example server programs were not sending the close_notify alert.
2530 * Potential memory leak in mpi_exp_mod() when error occurs during
2531 calculation of RR.
2532 * Improve interoperability by not writing extension length in ClientHello
2533 when no extensions are present (found by Matthew Page)
2534 * rsa_check_pubkey() now allows an E up to N
2535 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
2536 * mpi_fill_random() was creating numbers larger than requested on
2537 big-endian platform when size was not an integer number of limbs
2538 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
2539 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2540 size (found by TrustInSoft)
2541 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
2542 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2543 interpret semicolons as comment delimiters (found by Barry K. Nathan).
2544 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
2545 * Fix base64_decode() to return and check length correctly (in case of
2546 tight buffers)
2547
Paul Bakker3a2c0562013-10-07 16:22:05 +02002548= Version 1.2.10 released 2013-10-07
2549Changes
2550 * Changed RSA blinding to a slower but thread-safe version
2551
2552Bugfix
2553 * Fixed memory leak in RSA as a result of introduction of blinding
2554 * Fixed ssl_pkcs11_decrypt() prototype
2555 * Fixed MSVC project files
2556
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002557= Version 1.2.9 released 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002558Changes
2559 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
2560
2561Bugfix
2562 * Fixed potential memory leak when failing to resume a session
2563 * Fixed potential file descriptor leaks (found by Remi Gacogne)
2564 * Minor fixes
2565
2566Security
2567 * Fixed potential heap buffer overflow on large hostname setting
2568 * Fixed potential negative value misinterpretation in load_file()
2569 * RSA blinding on CRT operations to counter timing attacks
2570 (found by Cyril Arnaud and Pierre-Alain Fouque)
2571
Paul Bakkerde656232013-06-24 19:07:34 +02002572= Version 1.2.8 released 2013-06-19
2573Features
2574 * Parsing of PKCS#8 encrypted private key files
2575 * PKCS#12 PBE and derivation functions
2576 * Centralized module option values in config.h to allow user-defined
2577 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
2578
2579Changes
2580 * HAVEGE random generator disabled by default
2581 * Internally split up x509parse_key() into a (PEM) handler function
2582 and specific DER parser functions for the PKCS#1 and unencrypted
2583 PKCS#8 private key formats
2584 * Added mechanism to provide alternative implementations for all
2585 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
Darryl Green11999bb2018-03-13 15:22:58 +00002586 config.h)
Paul Bakkerde656232013-06-24 19:07:34 +02002587 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
2588 old PBKDF2 module
2589
2590Bugfix
2591 * Secure renegotiation extension should only be sent in case client
2592 supports secure renegotiation
2593 * Fixed offset for cert_type list in ssl_parse_certificate_request()
2594 * Fixed const correctness issues that have no impact on the ABI
2595 * x509parse_crt() now better handles PEM error situations
2596 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2597 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00002598 certificates
Paul Bakkerde656232013-06-24 19:07:34 +02002599 * x509parse_crtpath() is now reentrant and uses more portable stat()
2600 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
2601 * Fixed values for 2-key Triple DES in cipher layer
2602 * ssl_write_certificate_request() can handle empty ca_chain
2603
2604Security
2605 * A possible DoS during the SSL Handshake, due to faulty parsing of
2606 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2607
2608= Version 1.2.7 released 2013-04-13
2609Features
2610 * Ability to specify allowed ciphersuites based on the protocol version.
2611
2612Changes
2613 * Default Blowfish keysize is now 128-bits
2614 * Test suites made smaller to accommodate Raspberry Pi
2615
2616Bugfix
2617 * Fix for MPI assembly for ARM
2618 * GCM adapted to support sizes > 2^29
2619
Paul Bakker90f042d2013-03-11 11:38:44 +01002620= Version 1.2.6 released 2013-03-11
Paul Bakkerc0463502013-02-14 11:19:38 +01002621Bugfix
2622 * Fixed memory leak in ssl_free() and ssl_reset() for active session
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01002623 * Corrected GCM counter incrementation to use only 32-bits instead of
2624 128-bits (found by Yawning Angel)
Paul Bakkere3e4a592013-02-28 10:20:53 +01002625 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakker37286a52013-03-06 16:55:11 +01002626 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01002627 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakkerc0463502013-02-14 11:19:38 +01002628
Paul Bakkerb3869132013-02-28 17:21:01 +01002629Changes
2630 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
2631 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
2632 PKCS#1 v2.1 functions
Paul Bakkera43231c2013-02-28 17:33:49 +01002633 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
2634 or rsa_rsaes_oaep_decrypt()
Paul Bakker78a8c712013-03-06 17:01:52 +01002635 * Re-added handling for SSLv2 Client Hello when the define
2636 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkere81beda2013-03-06 17:40:46 +01002637 * The SSL session cache module (ssl_cache) now also retains peer_cert
2638 information (not the entire chain)
Paul Bakkerb3869132013-02-28 17:21:01 +01002639
Paul Bakkere47b34b2013-02-27 14:48:00 +01002640Security
2641 * Removed further timing differences during SSL message decryption in
2642 ssl_decrypt_buf()
Paul Bakker8804f692013-02-28 18:06:26 +01002643 * Removed timing differences due to bad padding from
2644 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2645 operations
Paul Bakkere47b34b2013-02-27 14:48:00 +01002646
Paul Bakkerc7a2da42013-02-02 19:23:57 +01002647= Version 1.2.5 released 2013-02-02
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002648Changes
2649 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakkerd66f0702013-01-31 16:57:45 +01002650 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01002651 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker40865c82013-01-31 17:13:13 +01002652 * Sending of security-relevant alert messages that do not break
2653 interoperability can be switched on/off with the flag
Paul Bakkera35aa542013-03-06 17:06:21 +01002654 POLARSSL_SSL_ALL_ALERT_MESSAGES
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002655
Paul Bakker45829992013-01-03 14:52:21 +01002656Security
2657 * Removed timing differences during SSL message decryption in
2658 ssl_decrypt_buf() due to badly formatted padding
2659
Paul Bakker14c56a32013-01-25 17:11:37 +01002660= Version 1.2.4 released 2013-01-25
Paul Bakker1961b702013-01-25 14:49:24 +01002661Changes
Paul Bakker68884e32013-01-07 18:20:04 +01002662 * More advanced SSL ciphersuite representation and moved to more dynamic
2663 SSL core
Paul Bakker1961b702013-01-25 14:49:24 +01002664 * Added ssl_handshake_step() to allow single stepping the handshake process
2665
Paul Bakker40628ba2013-01-03 10:50:31 +01002666Bugfix
2667 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakker21dca692013-01-03 11:41:08 +01002668 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker9c94cdd2013-01-22 13:45:33 +01002669 * Correctly handle CertificateRequest message in client for <= TLS 1.1
2670 without DN list
Paul Bakker40628ba2013-01-03 10:50:31 +01002671
Paul Bakkerfb1ba782012-11-26 16:28:25 +01002672= Version 1.2.3 released 2012-11-26
2673Bugfix
2674 * Server not always sending correct CertificateRequest message
2675
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002676= Version 1.2.2 released 2012-11-24
Paul Bakkere667c982012-11-20 13:50:22 +01002677Changes
2678 * Added p_hw_data to ssl_context for context specific hardware acceleration
2679 data
Hanno Becker01a0e072017-07-26 11:49:40 +01002680 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkere667c982012-11-20 13:50:22 +01002681
Paul Bakker7c90da92012-11-23 14:02:40 +01002682Bugfixes
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002683 * Fixed client authentication compatibility
2684 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker7c90da92012-11-23 14:02:40 +01002685
Paul Bakker14926332012-11-20 10:58:09 +01002686= Version 1.2.1 released 2012-11-20
Paul Bakker34d8dbc2012-11-14 12:11:38 +00002687Changes
2688 * Depth that the certificate verify callback receives is now numbered
2689 bottom-up (Peer cert depth is 0)
2690
Paul Bakker7a2538e2012-11-02 10:59:36 +00002691Bugfixes
2692 * Fixes for MSVC6
Paul Bakkerd9374b02012-11-02 11:02:58 +00002693 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakkerf02c5642012-11-13 10:25:21 +00002694 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2695 Pégourié-Gonnard)
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01002696 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2697 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00002698 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakker7a2538e2012-11-02 10:59:36 +00002699
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002700= Version 1.2.0 released 2012-10-31
Paul Bakkerfab5c822012-02-06 16:45:10 +00002701Features
2702 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
2703 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
2704 default!
Paul Bakkera8cd2392012-02-11 16:09:32 +00002705 * Added support for wildcard certificates
2706 * Added support for multi-domain certificates through the X509 Subject
2707 Alternative Name extension
Paul Bakkerbdb912d2012-02-13 23:11:30 +00002708 * Added preliminary ASN.1 buffer writing support
2709 * Added preliminary X509 Certificate Request writing support
2710 * Added key_app_writer example application
2711 * Added cert_req example application
Paul Bakker89e80c92012-03-20 13:50:09 +00002712 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker48916f92012-09-16 19:57:18 +00002713 * Added TLS 1.2 support (RFC 5246)
Paul Bakkerca4ab492012-04-18 14:23:57 +00002714 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker01cc3942012-05-08 08:36:15 +00002715 * Added commandline error code convertor (util/strerror)
Paul Bakker05ef8352012-05-08 09:17:57 +00002716 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002717 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002718 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker8d914582012-06-04 12:46:42 +00002719 * Added X509 CA Path support
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00002720 * Added Thumb assembly optimizations
Paul Bakker2770fbd2012-07-03 13:30:23 +00002721 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002722 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakkerf518b162012-08-23 13:03:18 +00002723 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker48916f92012-09-16 19:57:18 +00002724 * Added Secure Renegotiation (RFC 5746)
Paul Bakker29b64762012-09-25 09:36:44 +00002725 * Added predefined DHM groups from RFC 5114
Paul Bakker0a597072012-09-25 21:55:46 +00002726 * Added simple SSL session cache implementation
Paul Bakker5701cdc2012-09-27 21:49:42 +00002727 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1d29fb52012-09-28 13:28:45 +00002728 * Added option to add minimum accepted SSL/TLS protocol version
Paul Bakkerfab5c822012-02-06 16:45:10 +00002729
Paul Bakker1504af52012-02-11 16:17:43 +00002730Changes
2731 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker048d04e2012-02-12 17:31:04 +00002732 * AES code only check for Padlock once
Paul Bakker6b906e52012-05-08 12:01:43 +00002733 * Fixed const-correctness mpi_get_bit()
2734 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker186751d2012-05-08 13:16:14 +00002735 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker4d2c1242012-05-10 14:12:46 +00002736 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakker5b377842012-05-16 07:57:36 +00002737 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002738 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
2739 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkerec636f32012-09-09 19:17:02 +00002740 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker0a597072012-09-25 21:55:46 +00002741 * Revamped session resumption handling
Paul Bakkereb2c6582012-09-27 19:15:01 +00002742 * Generalized external private key implementation handling (like PKCS#11)
2743 in SSL/TLS
Paul Bakker915275b2012-09-28 07:10:55 +00002744 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker5c2364c2012-10-01 14:41:15 +00002745 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker645ce3a2012-10-31 12:32:41 +00002746 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker1504af52012-02-11 16:17:43 +00002747
Paul Bakker37824582012-03-22 14:10:22 +00002748Bugfix
Paul Bakker7beceb22012-03-22 14:19:49 +00002749 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2750 Hui Dong)
Paul Bakker430ffbe2012-05-01 08:14:20 +00002751 * Fixed potential heap corruption in x509_name allocation
Paul Bakker5b377842012-05-16 07:57:36 +00002752 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkerf6198c12012-05-16 08:02:29 +00002753 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2754 #52)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002755 * Handle encryption with private key and decryption with public key as per
Darryl Green11999bb2018-03-13 15:22:58 +00002756 RFC 2313
Paul Bakkercefb3962012-06-27 11:51:09 +00002757 * Handle empty certificate subject names
Paul Bakker535e97d2012-08-23 10:49:55 +00002758 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00002759 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker995a2152012-09-25 08:19:56 +00002760 with carry rollover (found by Ruslan Yushchenko)
Paul Bakkerb00ca422012-09-25 12:10:00 +00002761 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker4f024b72012-10-30 07:29:57 +00002762 * Fixed MPI assembly for SPARC64 platform
Paul Bakker37824582012-03-22 14:10:22 +00002763
Paul Bakker452d5322012-04-05 12:07:34 +00002764Security
Paul Bakker3c16db92012-07-05 13:58:08 +00002765 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2766 Vanderbeken)
Paul Bakker452d5322012-04-05 12:07:34 +00002767
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002768= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002769Bugfix
2770 * Fixed potential memory leak when failing to resume a session
2771 * Fixed potential file descriptor leaks
2772
2773Security
2774 * Potential buffer-overflow for ssl_read_record() (independently found by
2775 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
2776 * Potential negative value misinterpretation in load_file()
2777 * Potential heap buffer overflow on large hostname setting
2778
Paul Bakker248fff52013-06-24 19:08:50 +02002779= Version 1.1.7 released on 2013-06-19
2780Changes
2781 * HAVEGE random generator disabled by default
2782
2783Bugfix
2784 * x509parse_crt() now better handles PEM error situations
2785 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2786 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00002787 certificates
Paul Bakker248fff52013-06-24 19:08:50 +02002788 * Fixed values for 2-key Triple DES in cipher layer
2789 * ssl_write_certificate_request() can handle empty ca_chain
2790
2791Security
2792 * A possible DoS during the SSL Handshake, due to faulty parsing of
2793 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2794
2795= Version 1.1.6 released on 2013-03-11
2796Bugfix
2797 * Fixed net_bind() for specified IP addresses on little endian systems
2798
2799Changes
2800 * Allow enabling of dummy error_strerror() to support some use-cases
2801 * Debug messages about padding errors during SSL message decryption are
2802 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
2803
2804Security
2805 * Removed timing differences during SSL message decryption in
2806 ssl_decrypt_buf()
2807 * Removed timing differences due to bad padding from
2808 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2809 operations
2810
Paul Bakker9d2bb652013-01-25 16:07:49 +01002811= Version 1.1.5 released on 2013-01-16
2812Bugfix
2813 * Fixed MPI assembly for SPARC64 platform
2814 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
2815 * mpi_add_abs() now correctly handles adding short numbers to long numbers
2816 with carry rollover
2817 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
2818 * Prevent reading over buffer boundaries on X509 certificate parsing
2819 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2820 #52)
2821 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2822 Pégourié-Gonnard)
2823 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2824 Pégourié-Gonnard)
2825 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2826 * Memory leak when using RSA_PKCS_V21 operations fixed
2827 * Handle encryption with private key and decryption with public key as per
2828 RFC 2313
2829 * Fixes for MSVC6
2830
2831Security
2832 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2833 Vanderbeken)
2834
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002835= Version 1.1.4 released on 2012-05-31
2836Bugfix
2837 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2838 * Fixed potential heap corruption in x509_name allocation
2839 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2840
Paul Bakkerfad38932012-05-08 09:04:04 +00002841= Version 1.1.3 released on 2012-04-29
2842Bugfix
2843 * Fixed random MPI generation to not generate more size than requested.
2844
2845= Version 1.1.2 released on 2012-04-26
2846Bugfix
2847 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2848 Hui Dong)
2849
2850Security
2851 * Fixed potential memory corruption on miscrafted client messages (found by
2852 Frama-C team at CEA LIST)
2853 * Fixed generation of DHM parameters to correct length (found by Ruslan
2854 Yushchenko)
2855
Paul Bakker99955bf2012-01-23 09:31:41 +00002856= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002857Bugfix
2858 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2859 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002860 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002861 * Fixed multiple compiler warnings for VS6 and armcc
2862 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002863
Paul Bakker08a50882011-12-22 09:43:57 +00002864= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002865Features
2866 * Added ssl_session_reset() to allow better multi-connection pools of
2867 SSL contexts without needing to set all non-connection-specific
Darryl Green11999bb2018-03-13 15:22:58 +00002868 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002869 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2870 supported version to a server to help buggy server implementations.
Darryl Green11999bb2018-03-13 15:22:58 +00002871 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002872 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2873 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002874 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002875 * Added a generic entropy accumulator that provides support for adding
2876 custom entropy sources and added some generic and platform dependent
Darryl Green11999bb2018-03-13 15:22:58 +00002877 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002878
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002879Changes
2880 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002881 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2882 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002883 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002884 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002885 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002886 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2887 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002888 * Changed the defined key-length of DES ciphers in cipher.h to include the
2889 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002890 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002891 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002892 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2893 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002894 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2895 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002896 * Changed the used random function pointer to more flexible format. Renamed
2897 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002898 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002899 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002900 * Added permissive certificate parsing to x509parse_crt() and
2901 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002902 encountering a parse-error. Beware that the meaning of return values has
2903 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002904 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002905
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002906Bugfix
2907 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2908 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002909 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2910 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002911 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2912 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002913 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2914 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002915 * If certificate serial is longer than 32 octets, serial number is now
2916 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002917 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002918 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002919 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002920 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002921
Paul Bakker968bc982011-07-27 17:03:00 +00002922= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002923Features
2924 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002925 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002926
Paul Bakker42e59812011-06-09 15:55:41 +00002927Changes
2928 * The generic cipher and message digest layer now have normal error
2929 codes instead of integers
2930
Paul Bakker887bd502011-06-08 13:10:54 +00002931Bugfix
2932 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2933 #18)
2934
Paul Bakker828acb22011-05-27 09:25:42 +00002935= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002936Features
2937 * Added additional Cipher Block Modes to symmetric ciphers
2938 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002939 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002940 * Functions requiring File System functions can now be disabled
2941 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002942 * A error_strerror function() has been added to translate between
2943 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002944 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2945 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002946 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002947
Paul Bakker23986e52011-04-24 08:57:21 +00002948Changes
2949 * Major argument / variable rewrite. Introduced use of size_t
2950 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002951 better unsigned / signed use. Renamed internal bigint types
2952 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002953 * mpi_init() and mpi_free() now only accept a single MPI
2954 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002955 * The error codes have been remapped and combining error codes
2956 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002957 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002958 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2959 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002960 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2961 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2962 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2963 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002964 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2965 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002966 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002967
Paul Bakker3efa5752011-04-01 12:23:26 +00002968= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002969Features
2970 * Added support for PKCS#1 v2.1 encoding and thus support
2971 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002972 * Reading of Public Key files incorporated into default x509
2973 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002974 * Added mpi_fill_random() for centralized filling of big numbers
2975 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002976
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002977Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002978 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002979 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002980 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002981 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002982 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002983
2984Bugfix
2985 * Debug output of MPI's now the same independent of underlying
2986 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002987 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002988 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2989 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002990 * Fixed proper handling of RSASSA-PSS verification with variable
2991 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002992
Paul Bakker345a6fe2011-02-28 21:20:02 +00002993= Version 0.99-pre3 released on 2011-02-28
2994This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002995Features
2996 * Parsing PEM private keys encrypted with DES and AES
2997 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002998 * Added crl_app program to allow easy reading and
2999 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00003000
3001Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01003002 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00003003 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01003004 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00003005
Paul Bakker400ff6f2011-02-20 10:40:16 +00003006Bugfixes
3007 * Corrected parsing of UTCTime dates before 1990 and
3008 after 1950
3009 * Support more exotic OID's when parsing certificates
Darryl Green11999bb2018-03-13 15:22:58 +00003010 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00003011 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00003012 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00003013 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00003014 * Do not bail out if no client certificate specified. Try
3015 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01003016 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00003017
Paul Bakker345a6fe2011-02-28 21:20:02 +00003018Security fixes
3019 * Fixed a possible Man-in-the-Middle attack on the
3020 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01003021 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00003022
Paul Bakker9fc46592011-01-30 16:59:02 +00003023= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00003024Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00003025Note: Most of these features have been donated by Fox-IT
3026 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00003027 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00003028 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00003029 certificate fields, including Key Usage
3030 * Improved certificate verification and verification
3031 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00003032 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00003033 * Improvements to support integration in other
3034 applications:
3035 + Added generic message digest and cipher wrapper
3036 + Improved information about current capabilities,
3037 status, objects and configuration
3038 + Added verification callback on certificate chain
3039 verification to allow external blacklisting
Darryl Green11999bb2018-03-13 15:22:58 +00003040 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00003041 * Added support for PKCS#11 through the use of the
3042 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00003043
Paul Bakkerb6194992011-01-16 21:40:22 +00003044Changes
3045 * x509parse_time_expired() checks time in addition to
3046 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00003047 * The ciphers member of ssl_context and the cipher member
3048 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01003049 ciphersuite respectively. This clarifies the difference
3050 with the generic cipher layer and is better naming
3051 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00003052
Paul Bakker99ed6782011-01-05 14:48:42 +00003053= Version 0.14.0 released on 2010-08-16
3054Features
3055 * Added support for SSL_EDH_RSA_AES_128_SHA and
3056 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
3057 * Added compile-time and run-time version information
3058 * Expanded ssl_client2 arguments for more flexibility
3059 * Added support for TLS v1.1
3060
3061Changes
3062 * Made Makefile cleaner
3063 * Removed dependency on rand() in rsa_pkcs1_encrypt().
3064 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01003065 changed the prototype of rsa_pkcs1_encrypt(),
3066 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00003067 * Some SSL defines were renamed in order to avoid
3068 future confusion
3069
3070Bug fixes
3071 * Fixed CMake out of source build for tests (found by
3072 kkert)
3073 * rsa_check_private() now supports PKCS1v2 keys as well
3074 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
3075 generator
3076
3077= Version 0.13.1 released on 2010-03-24
3078Bug fixes
3079 * Fixed Makefile in library that was mistakenly merged
3080 * Added missing const string fixes
3081
3082= Version 0.13.0 released on 2010-03-21
3083Features
3084 * Added option parsing for host and port selection to
3085 ssl_client2
3086 * Added support for GeneralizedTime in X509 parsing
3087 * Added cert_app program to allow easy reading and
3088 printing of X509 certificates from file or SSL
3089 connection.
3090
3091Changes
3092 * Added const correctness for main code base
3093 * X509 signature algorithm determination is now
3094 in a function to allow easy future expansion
3095 * Changed symmetric cipher functions to
3096 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01003097 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00003098 * Added reset function for HMAC context as speed-up
3099 for specific use-cases
3100
3101Bug fixes
3102 * Fixed bug resulting in failure to send the last
3103 certificate in the chain in ssl_write_certificate() and
3104 ssl_write_certificate_request() (found by fatbob)
3105 * Added small fixes for compiler warnings on a Mac
3106 (found by Frank de Brabander)
3107 * Fixed algorithmic bug in mpi_is_prime() (found by
3108 Smbat Tonoyan)
3109
3110= Version 0.12.1 released on 2009-10-04
3111Changes
3112 * Coverage test definitions now support 'depends_on'
3113 tagging system.
3114 * Tests requiring specific hashing algorithms now honor
3115 the defines.
3116
3117Bug fixes
3118 * Changed typo in #ifdef in x509parse.c (found
3119 by Eduardo)
3120
3121= Version 0.12.0 released on 2009-07-28
3122Features
3123 * Added CMake makefiles as alternative to regular Makefiles.
3124 * Added preliminary Code Coverage tests for AES, ARC4,
3125 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
3126 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
3127 and X509parse.
3128
3129Changes
3130 * Error codes are not (necessarily) negative. Keep
3131 this is mind when checking for errors.
3132 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
3133 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
3134 * Changed interface for AES and Camellia setkey functions
3135 to indicate invalid key lengths.
3136
3137Bug fixes
3138 * Fixed include location of endian.h on FreeBSD (found by
3139 Gabriel)
3140 * Fixed include location of endian.h and name clash on
3141 Apples (found by Martin van Hensbergen)
3142 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
3143 required HMAC ipad and opad variables are not cleared.
3144 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01003145 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00003146 POLARSSL_HAVE_LONGLONG not defined (found by Giles
3147 Bathgate).
3148 * Fixed incorrect handling of negative strings in
3149 mpi_read_string() (found by code coverage tests).
3150 * Fixed segfault on handling empty rsa_context in
3151 rsa_check_pubkey() and rsa_check_privkey() (found by
3152 code coverage tests).
3153 * Fixed incorrect handling of one single negative input
3154 value in mpi_add_abs() (found by code coverage tests).
3155 * Fixed incorrect handling of negative first input
3156 value in mpi_sub_abs() (found by code coverage tests).
3157 * Fixed incorrect handling of negative first input
3158 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
3159 change also affects mpi_write_string() (found by code
3160 coverage tests).
3161 * Corrected is_prime() results for 0, 1 and 2 (found by
3162 code coverage tests).
3163 * Fixed Camellia and XTEA for 64-bit Windows systems.
3164
3165= Version 0.11.1 released on 2009-05-17
3166 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
3167 SHA-512 in rsa_pkcs1_sign()
3168
3169= Version 0.11.0 released on 2009-05-03
3170 * Fixed a bug in mpi_gcd() so that it also works when both
3171 input numbers are even and added testcases to check
3172 (found by Pierre Habouzit).
3173 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
3174 one way hash functions with the PKCS#1 v1.5 signing and
3175 verification.
3176 * Fixed minor bug regarding mpi_gcd located within the
3177 POLARSSL_GENPRIME block.
3178 * Fixed minor memory leak in x509parse_crt() and added better
3179 handling of 'full' certificate chains (found by Mathias
3180 Olsson).
3181 * Centralized file opening and reading for x509 files into
3182 load_file()
3183 * Made definition of net_htons() endian-clean for big endian
3184 systems (Found by Gernot).
3185 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01003186 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00003187 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
3188 responsible for crashes and unwanted behaviour.
3189 * Added support for Certificate Revocation List (CRL) parsing.
3190 * Added support for CRL revocation to x509parse_verify() and
3191 SSL/TLS code.
3192 * Fixed compatibility of XTEA and Camellia on a 64-bit system
3193 (found by Felix von Leitner).
3194
3195= Version 0.10.0 released on 2009-01-12
3196 * Migrated XySSL to PolarSSL
3197 * Added XTEA symmetric cipher
3198 * Added Camellia symmetric cipher
3199 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
3200 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
3201 * Fixed dangerous bug that can cause a heap overflow in
3202 rsa_pkcs1_decrypt (found by Christophe Devine)
3203
3204================================================================
3205XySSL ChangeLog
3206
3207= Version 0.9 released on 2008-03-16
3208
3209 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
3210 * Enabled support for large files by default in aescrypt2.c
3211 * Preliminary openssl wrapper contributed by David Barrett
3212 * Fixed a bug in ssl_write() that caused the same payload to
3213 be sent twice in non-blocking mode when send returns EAGAIN
3214 * Fixed ssl_parse_client_hello(): session id and challenge must
3215 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
3216 * Added user-defined callback debug function (Krystian Kolodziej)
3217 * Before freeing a certificate, properly zero out all cert. data
3218 * Fixed the "mode" parameter so that encryption/decryption are
3219 not swapped on PadLock; also fixed compilation on older versions
3220 of gcc (bug reported by David Barrett)
3221 * Correctly handle the case in padlock_xcryptcbc() when input or
Antonin Décimo36e89b52019-01-23 15:24:37 +01003222 output data is non-aligned by falling back to the software
Paul Bakker99ed6782011-01-05 14:48:42 +00003223 implementation, as VIA Nehemiah cannot handle non-aligned buffers
3224 * Fixed a memory leak in x509parse_crt() which was reported by Greg
3225 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
3226 Matthew Page who reported several bugs
3227 * Fixed x509_get_ext() to accept some rare certificates which have
3228 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
3229 * Added support on the client side for the TLS "hostname" extension
3230 (patch contributed by David Patino)
3231 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
3232 string is passed as the CN (bug reported by spoofy)
3233 * Added an option to enable/disable the BN assembly code
3234 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
3235 * Disabled obsolete hash functions by default (MD2, MD4); updated
3236 selftest and benchmark to not test ciphers that have been disabled
3237 * Updated x509parse_cert_info() to correctly display byte 0 of the
3238 serial number, setup correct server port in the ssl client example
3239 * Fixed a critical denial-of-service with X.509 cert. verification:
3240 peer may cause xyssl to loop indefinitely by sending a certificate
3241 for which the RSA signature check fails (bug reported by Benoit)
3242 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
3243 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
3244 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
3245 * Modified ssl_parse_client_key_exchange() to protect against
3246 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
3247 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
3248 * Updated rsa_gen_key() so that ctx->N is always nbits in size
3249 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
3250 David Barrett and Dusan Semen
3251
3252= Version 0.8 released on 2007-10-20
3253
3254 * Modified the HMAC functions to handle keys larger
3255 than 64 bytes, thanks to Stephane Desneux and gary ng
3256 * Fixed ssl_read_record() to properly update the handshake
3257 message digests, which fixes IE6/IE7 client authentication
3258 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
3259 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
3260 * Added user-defined callbacks for handling I/O and sessions
3261 * Added lots of debugging output in the SSL/TLS functions
3262 * Added preliminary X.509 cert. writing by Pascal Vizeli
3263 * Added preliminary support for the VIA PadLock routines
3264 * Added AES-CFB mode of operation, contributed by chmike
3265 * Added an SSL/TLS stress testing program (ssl_test.c)
3266 * Updated the RSA PKCS#1 code to allow choosing between
3267 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
3268 * Updated ssl_read() to skip 0-length records from OpenSSL
3269 * Fixed the make install target to comply with *BSD make
3270 * Fixed a bug in mpi_read_binary() on 64-bit platforms
3271 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
3272 * Fixed a long standing memory leak in mpi_is_prime()
3273 * Replaced realloc with malloc in mpi_grow(), and set
3274 the sign of zero as positive in mpi_init() (reported
3275 by Jonathan M. McCune)
3276
3277= Version 0.7 released on 2007-07-07
3278
3279 * Added support for the MicroBlaze soft-core processor
3280 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
3281 connections from being established with non-blocking I/O
3282 * Fixed a couple bugs in the VS6 and UNIX Makefiles
3283 * Fixed the "PIC register ebx clobbered in asm" bug
3284 * Added HMAC starts/update/finish support functions
3285 * Added the SHA-224, SHA-384 and SHA-512 hash functions
3286 * Fixed the net_set_*block routines, thanks to Andreas
3287 * Added a few demonstration programs: md5sum, sha1sum,
3288 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
3289 * Added new bignum import and export helper functions
3290 * Rewrote README.txt in program/ssl/ca to better explain
3291 how to create a test PKI
3292
3293= Version 0.6 released on 2007-04-01
3294
3295 * Ciphers used in SSL/TLS can now be disabled at compile
3296 time, to reduce the memory footprint on embedded systems
3297 * Added multiply assembly code for the TriCore and modified
3298 havege_struct for this processor, thanks to David Patiño
3299 * Added multiply assembly code for 64-bit PowerPCs,
3300 thanks to Peking University and the OSU Open Source Lab
3301 * Added experimental support of Quantum Cryptography
3302 * Added support for autoconf, contributed by Arnaud Cornet
3303 * Fixed "long long" compilation issues on IA-64 and PPC64
3304 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
3305 was not being correctly defined on ARM and MIPS
3306
3307= Version 0.5 released on 2007-03-01
3308
3309 * Added multiply assembly code for SPARC and Alpha
3310 * Added (beta) support for non-blocking I/O operations
3311 * Implemented session resuming and client authentication
3312 * Fixed some portability issues on WinCE, MINIX 3, Plan9
3313 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
3314 * Improved the performance of the EDH key exchange
3315 * Fixed a bug that caused valid packets with a payload
3316 size of 16384 bytes to be rejected
3317
3318= Version 0.4 released on 2007-02-01
3319
3320 * Added support for Ephemeral Diffie-Hellman key exchange
3321 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
3322 * Various improvement to the modular exponentiation code
3323 * Rewrote the headers to generate the API docs with doxygen
3324 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
3325 generated) and in ssl_parse_client_hello (max. client
3326 version was not properly set), thanks to Didier Rebeix
3327 * Fixed another bug in ssl_parse_client_hello: clients with
3328 cipherlists larger than 96 bytes were incorrectly rejected
3329 * Fixed a couple memory leak in x509_read.c
3330
3331= Version 0.3 released on 2007-01-01
3332
3333 * Added server-side SSLv3 and TLSv1.0 support
3334 * Multiple fixes to enhance the compatibility with g++,
3335 thanks to Xosé Antón Otero Ferreira
3336 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01003337 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00003338 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
3339 * Updated timing.c for improved compatibility with i386
3340 and 486 processors, thanks to Arnaud Cornet
3341
3342= Version 0.2 released on 2006-12-01
3343
3344 * Updated timing.c to support ARM and MIPS arch
3345 * Updated the MPI code to support 8086 on MSVC 1.5
3346 * Added the copyright notice at the top of havege.h
3347 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
3348 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
3349 * Fixed a bug reported by Torsten Lauter in ssl_read_record
3350 * Fixed a bug in rsa_check_privkey that would wrongly cause
3351 valid RSA keys to be dismissed (thanks to oldwolf)
3352 * Fixed a bug in mpi_is_prime that caused some primes to fail
3353 the Miller-Rabin primality test
3354
3355 I'd also like to thank Younès Hafri for the CRUX linux port,
3356 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
3357 who maintains the Debian package :-)
3358
3359= Version 0.1 released on 2006-11-01