blob: 7ed35093fa15a8f59cedf9f4f9a23e9e8dbb7562 [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
Simon Butcherebe23ed2018-06-12 16:46:45 +01003= mbed TLS x.x.x branch released xxxx-xx-xx
4
5Features
6 * Add additional block mode, OFB (Output Feedback), to the AES module and
7 cipher abstraction module.
8
Simon Butcherd5a09f12018-06-06 14:47:47 +01009= mbed TLS 2.10.0 branch released 2018-06-06
Gilles Peskine5bdb6712018-03-22 21:34:15 +010010
Manuel Pégourié-Gonnard08d1e912018-02-27 12:43:35 +010011Features
12 * Add support for ARIA cipher (RFC 5794) and associated TLS ciphersuites
13 (RFC 6209). Disabled by default, see MBEDTLS_ARIA_C in config.h
14
Gilles Peskine80aa3b82018-04-04 10:33:45 +020015API Changes
Andres Amaya Garcia19624052018-03-08 20:06:03 +000016 * Extend the platform module with a util component that contains
17 functionality shared by multiple Mbed TLS modules. At this stage
18 platform_util.h (and its associated platform_util.c) only contain
19 mbedtls_platform_zeroize(), which is a critical function from a security
20 point of view. mbedtls_platform_zeroize() needs to be regularly tested
21 against compilers to ensure that calls to it are not removed from the
22 output binary as part of redundant code elimination optimizations.
23 Therefore, mbedtls_platform_zeroize() is moved to the platform module to
24 facilitate testing and maintenance.
Hanno Becker2bd57572018-03-28 14:52:35 +010025
Simon Butcherd72700a2018-06-01 19:11:55 +010026Bugfix
27 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
28 build to fail. Found by zv-io. Fixes #1651.
29
Gilles Peskineb2f09c32018-03-21 12:38:00 +010030Changes
31 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Moran Pekera64fba42018-02-25 13:29:03 +020032 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
33 TrinityTonic. #1359.
Gilles Peskineb2f09c32018-03-21 12:38:00 +010034
Jaeden Amero7d7bad62018-04-27 13:07:13 +010035= mbed TLS 2.9.0 branch released 2018-04-30
Paul Bakker5121ce52009-01-03 21:22:43 +000036
37Security
Simon Butcherb03120a2018-04-30 16:40:25 +010038 * Fix an issue in the X.509 module which could lead to a buffer overread
39 during certificate validation. Additionally, the issue could also lead to
40 unnecessary callback checks being made or to some validation checks to be
41 omitted. The overread could be triggered remotely, while the other issues
42 would require a non DER-compliant certificate to be correctly signed by a
43 trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
44 luocm. Fixes #825.
45 * Fix the buffer length assertion in the ssl_parse_certificate_request()
46 function which led to an arbitrary overread of the message buffer. The
47 overreads could be caused by receiving a malformed message at the point
48 where an optional signature algorithms list is expected when the signature
49 algorithms section is too short. In builds with debug output, the overread
50 data is output with the debug data.
Andrzej Kurekb7a18c02018-04-25 05:25:30 -040051 * Fix a client-side bug in the validation of the server's ciphersuite choice
Simon Butcherb03120a2018-04-30 16:40:25 +010052 which could potentially lead to the client accepting a ciphersuite it didn't
53 offer or a ciphersuite that cannot be used with the TLS or DTLS version
54 chosen by the server. This could lead to corruption of internal data
55 structures for some configurations.
Gilles Peskine5bdb6712018-03-22 21:34:15 +010056
Gilles Peskine15ad5792018-03-22 22:21:55 +010057Features
Simon Butcherb03120a2018-04-30 16:40:25 +010058 * Add an option, MBEDTLS_AES_FEWER_TABLES, to dynamically compute smaller AES
59 tables during runtime, thereby reducing the RAM/ROM footprint by ~6KiB.
60 Suggested and contributed by jkivilin in pull request #394.
Gilles Peskine15ad5792018-03-22 22:21:55 +010061 * Add initial support for Curve448 (RFC 7748). Only mbedtls_ecp_mul() and
62 ECDH primitive functions (mbedtls_ecdh_gen_public(),
63 mbedtls_ecdh_compute_shared()) are supported for now. Contributed by
Simon Butchere6a2a1a2018-05-01 13:57:53 +010064 Nicholas Wilson in pull request #348.
Hanno Becker371f31c2017-06-07 15:56:54 +010065
66API Changes
Simon Butcherb03120a2018-04-30 16:40:25 +010067 * Extend the public API with the function of mbedtls_net_poll() to allow user
68 applications to wait for a network context to become ready before reading
69 or writing.
70 * Add function mbedtls_ssl_check_pending() to the public API to allow
71 a check for whether more more data is pending to be processed in the
72 internal message buffers.
Gilles Peskine557e77d2018-04-04 09:18:11 +020073 This function is necessary to determine when it is safe to idle on the
74 underlying transport in case event-driven IO is used.
Hanno Becker371f31c2017-06-07 15:56:54 +010075
Jaeden Amero798363e2018-03-23 17:39:23 +000076Features
77 * Implement the HMAC-based extract-and-expand key derivation function
78 (HKDF) per RFC 5869. Contributed by Thomas Fossati.
79
Andres AGee7157e2016-12-07 10:25:19 +000080Bugfix
Simon Butcherb03120a2018-04-30 16:40:25 +010081 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
Gilles Peskine08185402018-03-22 21:50:48 +010082 contributed by Brian J Murray and David Brown.
Gilles Peskine51d93942018-03-23 01:42:44 +010083 * Add missing dependencies in test suites that led to build failures
84 in configurations that omit certain hashes or public-key algorithms.
85 Fixes #1040.
Jaeden Amerob6049602018-03-26 18:25:58 +010086 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
87 #1353
Gilles Peskinef69ad5a2018-03-27 23:08:53 +020088 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
Simon Butcherb03120a2018-04-30 16:40:25 +010089 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
90 Deomid Ryabkov. Fixes #1299, #1475.
91 * Fix the Makefile build process for building shared libraries on Mac OS X.
92 Fixed by mnacamura.
Jethro Beekmand2df9362018-02-16 13:11:04 -080093 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcherb03120a2018-04-30 16:40:25 +010094 unable to parse keys which had only the optional parameters field of the
Jethro Beekmancb122372018-04-11 08:40:38 -070095 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
Simon Butcherb03120a2018-04-30 16:40:25 +010096 * Return the plaintext data more quickly on unpadded CBC decryption, as
97 stated in the mbedtls_cipher_update() documentation. Contributed by
98 Andy Leiserson.
Gilles Peskineb9e86962018-04-04 09:20:59 +020099 * Fix overriding and ignoring return values when parsing and writing to
100 a file in pk_sign program. Found by kevlut in #1142.
Hanno Beckerc53826b2017-10-12 07:46:41 +0100101 * Restrict usage of error code MBEDTLS_ERR_SSL_WANT_READ to situations
102 where data needs to be fetched from the underlying transport in order
103 to make progress. Previously, this error code was also occasionally
104 returned when unexpected messages were being discarded, ignoring that
105 further messages could potentially already be pending to be processed
Simon Butcherb03120a2018-04-30 16:40:25 +0100106 in the internal buffers; these cases led to deadlocks when event-driven
107 I/O was used. Found and reported by Hubert Mis in #772.
Gilles Peskinef2b76cd2018-04-19 17:41:39 +0200108 * Fix buffer length assertions in the ssl_parse_certificate_request()
109 function which leads to a potential one byte overread of the message
110 buffer.
Andrzej Kurek5462e022018-04-20 07:58:53 -0400111 * Fix invalid buffer sizes passed to zlib during record compression and
112 decompression.
Simon Butchere6a2a1a2018-05-01 13:57:53 +0100113 * Fix the soversion of libmbedcrypto to match the soversion of the
114 maintained 2.7 branch. The soversion was increased in Mbed TLS
115 version 2.7.1 to reflect breaking changes in that release, but the
116 increment was missed in 2.8.0 and later releases outside of the 2.7 branch.
Gilles Peskine08185402018-03-22 21:50:48 +0100117
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100118Changes
119 * Remove some redundant code in bignum.c. Contributed by Alexey Skalozub.
Simon Butcherb03120a2018-04-30 16:40:25 +0100120 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
121 independently by Matthieu Volat and Arne Schwabe.
Gilles Peskine51d93942018-03-23 01:42:44 +0100122 * Improve testing in configurations that omit certain hashes or
123 public-key algorithms. Includes contributions by Gert van Dijk.
124 * Improve negative testing of X.509 parsing.
Andres Amaya Garcia768bbaf2018-03-21 15:05:12 +0000125 * Do not define global mutexes around readdir() and gmtime() in
126 configurations where the feature is disabled. Found and fixed by Gergely
127 Budai.
Simon Butcherb03120a2018-04-30 16:40:25 +0100128 * Harden the function mbedtls_ssl_config_free() against misuse, so that it
129 doesn't leak memory if the user doesn't use mbedtls_ssl_conf_psk() and
130 instead incorrectly manipulates the configuration structure directly.
131 Found and fix submitted by junyeonLEE in #1220.
Andres Amaya Garciacb47a792018-03-27 21:19:50 +0100132 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
133 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
134 without PBES2. Fixed by Marcos Del Sol Vives.
Manuel Pégourié-Gonnardfff308e2018-03-28 11:13:05 +0200135 * Add the order of the base point as N in the mbedtls_ecp_group structure
136 for Curve25519 (other curves had it already). Contributed by Nicholas
137 Wilson #481
Jaeden Amero4ba87fc2018-03-29 11:01:38 +0100138 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
139 Krylov.
Darryl Greeneea1c4e2018-03-29 16:05:44 +0100140 * Improve the documentation of mbedtls_ssl_write(). Suggested by
141 Paul Sokolovsky in #1356.
Simon Butcherb03120a2018-04-30 16:40:25 +0100142 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100143 letter must not be prefixed by '-', such as LLVM. Found and fixed by
144 Alex Hixon.
Andres Amaya Garciaea5a8a42018-03-25 23:57:09 +0100145 * Allow configuring the shared library extension by setting the DLEXT
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100146 environment variable when using the project makefiles.
Gilles Peskine4e4be7c2018-03-21 16:29:03 +0100147 * Optimize unnecessary zeroing in mbedtls_mpi_copy. Based on a contribution
Gilles Peskine092bf3d2018-04-01 12:43:48 +0200148 by Alexey Skalozub in #405.
Gilles Peskinea09453f2018-04-04 09:14:12 +0200149 * In the SSL module, when f_send, f_recv or f_recv_timeout report
150 transmitting more than the required length, return an error. Raised by
151 Sam O'Connor in #1245.
Gilles Peskinec96ccf42018-03-31 22:57:03 +0200152 * Improve robustness of mbedtls_ssl_derive_keys against the use of
153 HMAC functions with non-HMAC ciphersuites. Independently contributed
154 by Jiayuan Chen in #1377. Fixes #1437.
Simon Butcherb03120a2018-04-30 16:40:25 +0100155 * Improve security of RSA key generation by including criteria from
156 FIPS 186-4. Contributed by Jethro Beekman. #1380
Gilles Peskine81021ca2018-04-19 20:59:06 +0200157 * Declare functions in header files even when an alternative implementation
158 of the corresponding module is activated by defining the corresponding
159 MBEDTLS_XXX_ALT macro. This means that alternative implementations do
160 not need to copy the declarations, and ensures that they will have the
161 same API.
Andrzej Kurekaca09c72018-04-13 05:18:08 -0400162 * Add platform setup and teardown calls in test suites.
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100163
Jaeden Amero8be0e6d2018-03-16 16:25:12 +0000164= mbed TLS 2.8.0 branch released 2018-03-16
Gilles Peskine27b07542018-02-14 14:07:48 +0100165
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100166Default behavior changes
167 * The truncated HMAC extension now conforms to RFC 6066. This means
168 that when both sides of a TLS connection negotiate the truncated
169 HMAC extension, Mbed TLS can now interoperate with other
170 compliant implementations, but this breaks interoperability with
171 prior versions of Mbed TLS. To restore the old behavior, enable
172 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
173 config.h. Found by Andreas Walz (ivESK, Offenburg University of
174 Applied Sciences).
175
Hanno Becker7dc832b2017-11-16 17:39:34 +0000176Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100177 * Fix implementation of the truncated HMAC extension. The previous
178 implementation allowed an offline 2^80 brute force attack on the
179 HMAC key of a single, uninterrupted connection (with no
180 resumption of the session).
Gilles Peskine553a06f2018-03-13 17:15:34 +0100181 * Verify results of RSA private key operations to defend
182 against Bellcore glitch attack.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +0100183 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
184 a crash on invalid input.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +0100185 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
186 crash on invalid input.
Manuel Pégourié-Gonnardfd3e4fb2018-03-13 11:53:30 +0100187 * Fix CRL parsing to reject CRLs containing unsupported critical
188 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Hanno Becker7dc832b2017-11-16 17:39:34 +0000189
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800190Features
191 * Extend PKCS#8 interface by introducing support for the entire SHA
192 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine1d80a672018-02-14 11:33:30 +0100193 This allows reading encrypted PEM files produced by software that
194 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
195 OpenVPN Inc. Fixes #1339
Gilles Peskine3dabd6a2018-02-14 17:19:41 +0100196 * Add support for public keys encoded in PKCS#1 format. #1122
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800197
Hanno Beckercf092b22018-03-06 14:23:38 +0000198New deprecations
199 * Deprecate support for record compression (configuration option
200 MBEDTLS_ZLIB_SUPPORT).
201
Gilles Peskine27b07542018-02-14 14:07:48 +0100202Bugfix
203 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
204 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +0100205 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +0200206 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
207 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskine1bf61232018-02-27 08:37:52 +0100208 In the context of SSL, this resulted in handshake failure. Reported by
209 daniel in the Mbed TLS forum. #1351
Jaeden Ameroc5d08f82018-02-21 13:32:39 +0000210 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskineb4c571e2018-03-11 00:44:14 +0100211 * Fix setting version TLSv1 as minimal version, even if TLS 1
212 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
213 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
214 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +0300215 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
216 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +0300217 Nick Wilson on issue #355
Gilles Peskine08af5382018-03-11 00:15:56 +0100218 * In test_suite_pk, pass valid parameters when testing for hash length
itayzafrir693a1d92018-02-26 12:02:10 +0200219 overflow. #1179
Gilles Peskinea31d8202018-03-12 23:45:08 +0100220 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
221 by Guido Vranken. #639
Gilles Peskine3ff4a072018-03-12 23:54:20 +0100222 * Log correct number of ciphersuites used in Client Hello message. #918
Gilles Peskine5f193282018-03-13 17:18:06 +0100223 * Fix X509 CRT parsing that would potentially accept an invalid tag when
224 parsing the subject alternative names.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +0100225 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
226 that could cause a key exchange to fail on valid data.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +0100227 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
228 could cause a key exchange to fail on valid data.
Gilles Peskine8db3efb2018-02-21 19:16:20 +0100229 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
230 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +0100231 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
232 Found through fuzz testing.
Gilles Peskine27b07542018-02-14 14:07:48 +0100233
234Changes
235 * Fix tag lengths and value ranges in the documentation of CCM encryption.
236 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +0100237 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskinedf298682018-02-14 15:49:54 +0100238 * Remove support for the library reference configuration for picocoin.
Gilles Peskinebb2565c2018-02-21 17:59:40 +0100239 * MD functions deprecated in 2.7.0 are no longer inline, to provide
240 a migration path for those depending on the library's ABI.
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200241 * Clarify the documentation of mbedtls_ssl_setup.
Gilles Peskine6dc4a312018-03-13 00:13:06 +0100242 * Use (void) when defining functions with no parameters. Contributed by
243 Joris Aerts. #678
Gilles Peskine27b07542018-02-14 14:07:48 +0100244
Simon Butcher55fc4e02018-02-05 01:09:13 +0000245= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100246
Gilles Peskine28a0c722017-10-17 19:01:38 +0200247Security
Simon Butcher55fc4e02018-02-05 01:09:13 +0000248 * Fix a heap corruption issue in the implementation of the truncated HMAC
249 extension. When the truncated HMAC extension is enabled and CBC is used,
250 sending a malicious application packet could be used to selectively corrupt
251 6 bytes on the peer's heap, which could potentially lead to crash or remote
252 code execution. The issue could be triggered remotely from either side in
253 both TLS and DTLS. CVE-2018-0488
254 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
255 for the key size, which could potentially lead to crash or remote code
256 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
257 Qualcomm Technologies Inc. CVE-2018-0487
258 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
259 zeros.
260 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
261 64 KiB to the address of the SSL buffer and causing a wrap around.
262 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +0100263 default enabled) maximum fragment length extension is disabled in the
264 config and the application data buffer passed to mbedtls_ssl_write
265 is larger than the internal message buffer (16384 bytes by default), the
266 latter overflows. The exploitability of this issue depends on whether the
267 application layer can be forced into sending such large packets. The issue
268 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +0000269 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
270 Fixes #707.
271 * Add a provision to prevent compiler optimizations breaking the time
272 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +0100273 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +0100274 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +0300275 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
276 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +0100277 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
278 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000279 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
280 data. Previously, trailing zero bytes were detected and omitted for the
281 sake of saving memory, but potentially leading to slight timing
282 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +0100283 * Wipe stack buffer temporarily holding EC private exponent
284 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000285 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +0100286 (server-side). Could result in application crash, but only if an ALPN
287 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100288 * Change default choice of DHE parameters from untrustworthy RFC 5114
289 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
290 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +0200291
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200292Features
293 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +0100294 * The selftest program can execute a subset of the tests based on command
295 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +0200296 * New unit tests for timing. Improve the self-test to be more robust
297 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +0100298 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +0000299 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +0100300 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +0100301 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +0300302 * Add support for alternative implementations for ECDSA, controlled by new
303 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
304 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +0300305 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +0300306 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +0300307 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000308 * Add support for alternative implementation of ECDH, controlled by the
309 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +0300310 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +0300311 The following functions from the ECDH module can be replaced
312 with an alternative implementation:
313 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000314 * Add support for alternative implementation of ECJPAKE, controlled by
315 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000316 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +0200317
Hanno Beckera47023e2017-12-22 17:08:03 +0000318API Changes
319 * Extend RSA interface by multiple functions allowing structure-
320 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +0000321 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +0000322 up RSA contexts from partial key material and having them completed to the
323 needs of the implementation automatically. This allows to setup private RSA
324 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
325 purpose or CRT and/or blinding.
326 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
327 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100328 * The following functions in the message digest modules (MD2, MD4, MD5,
329 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
330 The new functions change the return type from void to int to allow
331 returning error codes when using MBEDTLS_<MODULE>_ALT.
332 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
333 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
334 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100335 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200336
Ron Eldor73a38172017-10-03 15:58:26 +0300337New deprecations
338 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000339 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100340 * Direct manipulation of structure fields of RSA contexts is deprecated.
341 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000342 * Deprecate usage of message digest functions that return void
343 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
344 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
345 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
346 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100347 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
348 parameters from RFC 3526 or the newly added parameters from RFC 7919.
349 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
350 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
351 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000352 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
353 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100354 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100355
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100356Bugfix
357 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
358 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100359 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
Simon Butcherb03120a2018-04-30 16:40:25 +0100360 Found by projectgus and Jethro Beekman, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100361 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300362 * Parse signature algorithm extension when renegotiating. Previously,
363 renegotiated handshakes would only accept signatures using SHA-1
364 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000365 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
366 dates on leap years with 100 and 400 intervals are handled correctly. Found
367 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200368 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
369 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100370 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
371 Found independently by Florian in the mbed TLS forum and by Mishamax.
372 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100373 * Fix variable used before assignment compilation warnings with IAR
374 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000375 * Fix unchecked return codes from AES, DES and 3DES functions in
376 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
377 If a call to one of the functions of the cryptographic primitive modules
378 failed, the error may not be noticed by the function
379 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
380 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100381 * Include configuration file in md.h, to fix compilation warnings.
382 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100383 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
384 writing routines that prevented these functions to work with alternative
385 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100386 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
387 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100388 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000389 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100390 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000391 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100392 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000393 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000394 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100395 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100396 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100397 * Add size-checks for record and handshake message content, securing
398 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300399 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
400 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +0100401 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000402 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100403 * Fix possible memory leaks in mbedtls_gcm_self_test().
404 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +0000405 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
406 RSA test suite where the failure of CTR DRBG initialization lead to
407 freeing an RSA context and several MPI's without proper initialization
408 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +0100409 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +0100410 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
411 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000412 * Fix an issue in the cipher decryption with the mode
413 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
414 Note, this padding mode is not used by the TLS protocol. Found and fixed by
415 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +0100416 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
417 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
418 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
419 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +0100420 structure. Do not assume that zeroizing a context is a correct way to
421 reset it. Found independently by ccli8 on Github.
422 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000423 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
424 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +0100425
426Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +0000427 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +0100428 and the message digest. Further, allow enabling/disabling of authority
429 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +0000430 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
431 particular, don't require P,Q if neither CRT nor blinding are
432 used. Reported and fix proposed independently by satur9nine and sliai
433 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100434 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +0100435 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
436 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +0100437 * Update all internal usage of deprecated message digest functions to the
438 new ones with return codes. In particular, this modifies the
439 mbedtls_md_info_t structure. Propagate errors from these functions
440 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +0000441 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +0100442 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
443 modules where the software implementation can be replaced by a hardware
444 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +0100445 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
446 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100447
Simon Butcher72ea31b2017-08-10 11:51:16 +0100448= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +0200449
Simon Butcherb060cc22017-07-28 01:04:34 +0100450Security
Simon Butcher01971d02017-08-10 10:48:01 +0100451 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherb060cc22017-07-28 01:04:34 +0100452 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
453 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +0100454 (default: 8) intermediates, even when it was not trusted. This could be
455 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +0100456 (the default), the handshake was correctly aborted).
457 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +0100458 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
459 Found by Laurent Simon.
Simon Butcherb060cc22017-07-28 01:04:34 +0100460
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100461Features
462 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia052ac862017-07-12 11:27:05 +0100463 and the context struct mbedtls_platform_context to perform
464 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia586d3772017-07-18 10:24:26 +0100465 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +0100466 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +0100467 some embedded environments to provide a means of initialising underlying
468 cryptographic acceleration hardware.
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100469
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200470API Changes
471 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
472 API consistent with mbed TLS 2.5.0. Specifically removed the inline
473 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +0100474 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
475 by James Cowgill. #978
Simon Butcherb060cc22017-07-28 01:04:34 +0100476 * Certificate verification functions now set flags to -1 in case the full
477 chain was not verified due to an internal error (including in the verify
478 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +0100479 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherb060cc22017-07-28 01:04:34 +0100480 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +0100481 a fatal error in the verify callback.
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200482
Ron Eldor5a21fd62016-12-16 16:15:56 +0200483Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +0100484 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
485 Reported by roberto. #716
486 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor8ab05952017-01-09 19:27:59 +0200487 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +0100488 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +0100489 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
490 in the case of an error. Found by redplait. #590
Ron Eldor7269fee2017-01-12 14:50:50 +0200491 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100492 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciaaa27dfe2017-05-04 11:05:55 +0100493 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
494 compilation when using ARM Compiler 6.
Simon Butcher00d3cc62017-07-26 17:25:55 +0100495 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100496 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher00d3cc62017-07-26 17:25:55 +0100497 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
498 KNOX Security, Samsung Research America
Andres AG2e3ddfa2017-02-17 13:54:43 +0000499 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100500 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e3ddfa2017-02-17 13:54:43 +0000501 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
502 KNOX Security, Samsung Research America
Simon Butcher00d3cc62017-07-26 17:25:55 +0100503 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100504 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher00d3cc62017-07-26 17:25:55 +0100505 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +0100506 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +0100507 function mbedtls_time() instead. Found by wairua. #666
508 * Avoid shadowing of time and index functions through mbed TLS function
509 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +0200510
Janos Follathbfea4a72017-06-22 10:02:07 +0100511Changes
Janos Follath32529402017-06-22 10:02:07 +0100512 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +0100513 64-bit division. This is useful on embedded platforms where 64-bit division
514 created a dependency on external libraries. #708
Janos Follathbfea4a72017-06-22 10:02:07 +0100515 * Removed mutexes from ECP hardware accelerator code. Now all hardware
516 accelerator code in the library leaves concurrency handling to the
517 platform. Reported by Steven Cooreman. #863
Andres Amaya Garcia92fcfe22017-06-26 12:57:44 +0100518 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
519 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100520 * Added a test script that can be hooked into git that verifies commits
521 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +0100522 * Improve documentation of PKCS1 decryption functions.
Janos Follathbfea4a72017-06-22 10:02:07 +0100523
Simon Butcherf2a597f2017-06-20 23:08:10 +0100524= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +0100525
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200526Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +0100527 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
528 The issue could only happen client-side with renegotiation enabled.
529 Could result in DoS (application crash) or information leak
530 (if the application layer sent data read from mbedtls_ssl_read()
531 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +0200532 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
533 certificate verification. SHA-1 can be turned back on with a compile-time
534 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +0200535 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
536 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +0200537 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
538 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200539
Hanno Beckereccf60c2017-06-05 15:19:01 +0100540Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +0100541 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
542 valid C and they prevented the test from compiling in Visual Studio 2015
543 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +0100544 * Fix insufficient support for signature-hash-algorithm extension,
545 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +0100546 * Fix behaviour that hid the original cause of fatal alerts in some cases
547 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +0200548 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100549 * Fix SSLv3 renegotiation behaviour and stop processing data received from
550 peer after sending a fatal alert to refuse a renegotiation attempt.
551 Previous behaviour was to keep processing data even after the alert has
552 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +0100553 * Accept empty trusted CA chain in authentication mode
Simon Butcherb03120a2018-04-30 16:40:25 +0100554 MBEDTLS_SSL_VERIFY_OPTIONAL. Found by Jethro Beekman. #864
Janos Follath5a1c0e72017-06-16 09:00:07 +0100555 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
556 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
557 reflect bad EC curves within verification result.
558 * Fix bug that caused the modular inversion function to accept the invalid
559 modulus 1 and therefore to hang. Found by blaufish. #641.
560 * Fix incorrect sign computation in modular exponentiation when the base is
561 a negative MPI. Previously the result was always negative. Found by Guido
562 Vranken.
563 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
564 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +0200565
Gilles Peskine36091fe2017-05-03 16:55:03 +0200566Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +0100567 * Send fatal alerts in more cases. The previous behaviour was to skip
568 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +0000569 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +0100570 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +0000571 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +0200572
Simon Butcher9f770172017-05-15 15:13:59 +0100573= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100574
Janos Follath45182a02017-03-23 10:41:56 +0000575Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +0100576 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +0100577 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
578 Simon.
Janos Follath45182a02017-03-23 10:41:56 +0000579 * Add exponent blinding to RSA private operations as a countermeasure
580 against side-channel attacks like the cache attack described in
581 https://arxiv.org/abs/1702.08719v2.
582 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
583 Clémentine Maurice and Stefan Mangard.
584
Simon Butcher4775e832017-05-13 22:56:08 +0100585Features
Janos Follath5a1c0e72017-06-16 09:00:07 +0100586 * Add hardware acceleration support for the Elliptic Curve Point module.
587 This involved exposing parts of the internal interface to enable
588 replacing the core functions and adding and alternative, module level
589 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +0100590 * Add a new configuration option to 'mbedtls_ssl_config' to enable
591 suppressing the CA list in Certificate Request messages. The default
592 behaviour has not changed, namely every configured CAs name is included.
593
Andres AGf5bf7182017-03-03 14:09:56 +0000594API Changes
595 * The following functions in the AES module have been deprecated and replaced
596 by the functions shown below. The new functions change the return type from
597 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
598 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
599 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
600 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
601
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100602Bugfix
603 * Remove macros from compat-1.3.h that correspond to deleted items from most
604 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100605 * Fixed issue in the Threading module that prevented mutexes from
606 initialising. Found by sznaider. #667 #843
607 * Add checks in the PK module for the RSA functions on 64-bit systems.
608 The PK and RSA modules use different types for passing hash length and
609 without these checks the type cast could lead to data loss. Found by Guido
610 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100611
Simon Butcherb65c2be2017-03-10 18:50:44 +0000612= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +0100613
Janos Follath182013f2016-10-25 10:50:22 +0100614Security
Simon Butcherb65c2be2017-03-10 18:50:44 +0000615 * Add checks to prevent signature forgeries for very large messages while
616 using RSA through the PK module in 64-bit systems. The issue was caused by
617 some data loss when casting a size_t to an unsigned int value in the
618 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
619 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +0000620 * Fixed potential livelock during the parsing of a CRL in PEM format in
621 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
622 characters after the footer could result in the execution of an infinite
623 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
624 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +0100625 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
626 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +0000627 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +0000628 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
629 when verifying the validity of a key on secp224k1. This could be
630 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +0000631 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +0000632 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
633 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +0000634
Andres AG703990b2016-10-24 11:23:36 +0100635Bugfix
Andres AGd1650662016-12-09 17:26:23 +0000636 * Fix output certificate verification flags set by x509_crt_verify_top() when
637 traversing a chain of trusted CA. The issue would cause both flags,
638 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
639 set when the verification conditions are not met regardless of the cause.
640 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +0000641 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
642 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
643 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +0000644 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
645 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +0000646 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +0000647 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
648 would compare 64 bits of the record counter instead of 48 bits as indicated
649 in RFC 6347 Section 4.3.1. This could cause the execution of the
650 renegotiation routines at unexpected times when the protocol is DTLS. Found
651 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +0100652 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +0100653 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +0100654 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +0000655 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
656 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
657 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
658 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
659 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
660 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +0000661 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
662 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +0000663 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
664 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +0000665 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
666 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +0000667 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
668 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +0000669 * Fixed the templates used to generate project and solution files for Visual
670 Studio 2015 as well as the files themselves, to remove a build warning
671 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +0200672 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
673 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +0000674 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
675 number to write in hexadecimal is negative and requires an odd number of
676 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +0000677 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
678 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +0100679
Janos Follath4c006cd2016-12-13 14:14:03 +0000680= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +0000681
682Changes
683 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
684 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
685 Authentication October 2016
686
Simon Butcher19dbd412016-10-16 19:35:49 +0100687= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +0300688
Andres AG60dbc932016-09-02 15:23:48 +0100689Security
Simon Butcheref8fa012016-10-16 00:44:08 +0100690 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
691 with RFC-5116 and could lead to session key recovery in very long TLS
692 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
693 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
694 https://eprint.iacr.org/2016/475.pdf
695 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +0100696 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +0100697 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +0100698 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +0100699
Simon Butchercf8c1f42016-09-02 21:29:39 +0300700Features
Simon Butcher21c54812016-10-05 14:17:37 +0100701 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
702 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300703 * Added hardware entropy selftest to verify that the hardware entropy source
704 is functioning correctly.
705 * Added a script to print build environment info for diagnostic use in test
706 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +0100707 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
708 configure the maximum length of a file path that can be buffered when
709 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +0100710 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +0100711 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +0100712 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
713 to configure the minimum number of bytes for entropy sources using the
714 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300715
716Bugfix
717 * Fix for platform time abstraction to avoid dependency issues where a build
718 may need time but not the standard C library abstraction, and added
719 configuration consistency checks to check_config.h
720 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +0100721 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
722 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +0300723 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
724 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +0300725 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
726 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +0100727 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +0100728 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +0100729 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +0100730 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +0100731 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +0100732 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +0100733 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
734 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
735 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +0100736 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
737 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +0100738 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +0100739 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +0100740 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +0100741 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +0100742 * Fix potential byte overread when verifying malformed SERVER_HELLO in
743 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +0100744 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +0100745 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +0100746 * Fix compatibility issue with Internet Explorer client authentication,
747 where the limited hash choices prevented the client from sending its
748 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +0100749 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300750
751Changes
752 * Extended test coverage of special cases, and added new timing test suite.
753 * Removed self-tests from the basic-built-test.sh script, and added all
754 missing self-tests to the test suites, to ensure self-tests are only
755 executed once.
756 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
757 * Added support for a Yotta specific configuration file -
758 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +0100759 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +0100760 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +0100761 * Renamed source file library/net.c to library/net_sockets.c to avoid
762 naming collision in projects which also have files with the common name
763 net.c. For consistency, the corresponding header file, net.h, is marked as
764 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +0100765 * Changed the strategy for X.509 certificate parsing and validation, to no
766 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300767
Simon Butcher46125fb2016-06-27 19:43:55 +0100768= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100769
Janos Follathcc4eba72016-02-10 16:25:55 +0000770Security
Janos Follathe43b81a2016-02-10 16:25:55 +0000771 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +0000772 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +0000773 * Fix potential integer overflow to buffer overflow in
774 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +0100775 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +0100776 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +0000777 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
778 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +0000779
Simon Butcher3fe6cd32016-04-26 19:51:29 +0100780Features
781 * Support for platform abstraction of the standard C library time()
782 function.
783
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100784Bugfix
785 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
786 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100787 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +0000788 * Fix potential build failures related to the 'apidoc' target, introduced
789 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100790 * Fix issue in Makefile that prevented building using armar. #386
Janos Follath4ae5c292016-02-10 11:27:43 +0000791 * Fix memory leak that occured only when ECJPAKE was enabled and ECDHE and
792 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +0000793 * Fix an issue that caused valid certificates to be rejected whenever an
794 expired or not yet valid certificate was parsed before a valid certificate
795 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +0100796 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +0000797 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +0100798 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +0000799 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
800 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +0100801 * Fix issue that caused a crash if invalid curves were passed to
802 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +0100803 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +0100804 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +0100805 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +0100806 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100807
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +0100808Changes
809 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
810 don't use the optimized assembly for bignum multiplication. This removes
811 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +0100812 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +0100813 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
814 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +0100815 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
816 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +0100817
818= mbed TLS 2.2.1 released 2016-01-05
819
820Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +0100821 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +0100822 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +0000823 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +0100824 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
825 SLOTH attack on TLS 1.2 server authentication (other attacks from the
826 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +0100827 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +0000828
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +0100829Bugfix
830 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
831 * Fix bug in certificate validation that caused valid chains to be rejected
832 when the first intermediate certificate has pathLenConstraint=0. Found by
833 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +0000834 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +0000835 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +0100836 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100837 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +0200838 datagram if a single record in a datagram is unexpected, instead only
839 drop the record and look at subsequent records (if any are present) in
840 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +0200841
842= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +0000843
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +0200844Security
845 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
846 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +0000847 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100848 * Fix potential heap corruption on Windows when
849 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
850 triggered remotely. Found by Guido Vranken, Intelworks.
851 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +0200852 Cannot be triggered remotely unless you create X.509 certificates based
853 on untrusted input or write keys of untrusted origin. Found by Guido
854 Vranken, Intelworks.
855 * The X509 max_pathlen constraint was not enforced on intermediate
856 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +0200857 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100858
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100859Features
860 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
861 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100862 * Added a key extraction callback to accees the master secret and key
863 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +0200864
865Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +0000866 * Self-signed certificates were not excluded from pathlen counting,
867 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +0200868 provided by Janos Follath. #319
869 * Fix build error with configurations where ECDHE-PSK is the only key
870 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +0000871 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +0200872 ECHD-ECDSA if the only key exchange. Multiple reports. #310
873 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +0200874 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +0900875 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
876 size/curve against the profile. Before that, there was no way to set a
877 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +0000878 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +0100879 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
880 Found by Kurt Danielson. #292
881 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100882 * Fix bug in ASN.1 encoding of booleans that caused generated CA
883 certificates to be rejected by some applications, including OS X
884 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +0100885
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +0100886Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +0100887 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
888 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +0100889
890= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +0100891
892Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +0200893 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
894 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +0100895 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +0200896 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +0100897 once in the same handhake and mbedtls_ssl_conf_psk() was used.
898 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
899 remotely.
900 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +0100901 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +0100902 Found by Guido Vranken, Intelworks. Not triggerable remotely.
903 * Fix potential buffer overflow in mbedtls_mpi_read_string().
904 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
905 of TLS, but might be in other uses. On 32 bit machines, requires reading a
906 string of close to or larger than 1GB to exploit; on 64 bit machines, would
907 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +0200908 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +0100909 on crafted PEM input data. Found and fix provided by Guido Vranken,
910 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +0200911 accept PEM data from an untrusted source.
912 * Fix possible heap buffer overflow in base64_encoded() when the input
913 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +0100914 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +0100915 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +0100916 the same mbedtls_ssl_config object and memory allocation fails. Found by
917 Guido Vranken, Intelworks. Cannot be forced remotely.
918 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +0100919 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +0100920 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +0100921 Found by Guido Vranken, Intelworks.
922
923Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +0100924 * Fix compile error in net.c with musl libc. Found and patch provided by
925 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +0100926 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +0100927
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +0200928Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +0200929 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
930 domain names are compliant with RFC 1035.
931 * Fixed paths for check_config.h in example config files. (Found by bachp)
932 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200933
934= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +0100935
936Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200937 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +0100938 signatures. (Found by Florian Weimer, Red Hat.)
939 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +0200940 * Fix possible client-side NULL pointer dereference (read) when the client
941 tries to continue the handshake after it failed (a misuse of the API).
942 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +0100943 afl-fuzz.)
944
945Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +0200946 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
947 * Fix off-by-one error in parsing Supported Point Format extension that
948 caused some handshakes to fail.
949
950Changes
951 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
952 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +0100953 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200954 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +0200955 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200956 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +0200957 detected and mbedtls_ssl_read() will return
958 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200959 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +0200960
961= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +0200962
963Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +0200964 * Added support for yotta as a build system.
965 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200966
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +0200967Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200968 * Fix segfault in the benchmark program when benchmarking DHM.
969 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +0200970 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +0200971 * Fix bug when parsing a ServerHello without extensions (found by David
972 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +0200973 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
974 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +0200975 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
976 installed (found by Rawi666).
977 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +0200978 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +0200979 (found by robotanarchy) (#232).
980 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +0200981 tests (found by robotanarchy) (#232).
982 * Fix missing -static-libgcc when building shared libraries for Windows
983 with make.
Simon Butcher52754592015-09-03 13:06:01 +0100984 * Fix link error when building shared libraries for Windows with make.
985 * Fix error when loading libmbedtls.so.
986 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
987 be always used (found by dcb314) (#235)
988 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
989 result trying to unlock an unlocked mutex on invalid input (found by
990 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200991 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +0200992 * Fix memory corruption on client with overlong PSK identity, around
993 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200994 Aleksandrs Saveljevs) (#238)
995 * Fix unused function warning when using MBEDTLS_MDx_ALT or
996 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +0200997 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
998
999Changes
Simon Butcher52754592015-09-03 13:06:01 +01001000 * The PEM parser now accepts a trailing space at end of lines (#226).
1001 * It is now possible to #include a user-provided configuration file at the
1002 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
1003 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001004 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +01001005 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +01001006 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001007 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001008 Hugo Leisink) (#210).
1009 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
1010 length.
1011
1012= mbed TLS 2.0.0 released 2015-07-13
1013
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001014Features
1015 * Support for DTLS 1.0 and 1.2 (RFC 6347).
1016 * Ability to override core functions from MDx, SHAx, AES and DES modules
1017 with custom implementation (eg hardware accelerated), complementing the
1018 ability to override the whole module.
1019 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +02001020 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001021 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +02001022 which algorithms and key sizes (curves for ECDSA) are acceptable.
1023 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001024 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001025 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001026 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001027
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +02001028API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +02001029 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
1030 You now need to link to all of them if you use TLS for example.
1031 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001032 Some names have been further changed to make them more consistent.
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001033 Migration helpers scripts/rename.pl and include/mbedlts/compat-1.3.h are
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001034 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001035 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +02001036 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001037 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +02001038 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001039 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
1040 * The following _init() functions that could return errors have
Tillmann Karras588ad502015-09-25 04:27:22 +02001041 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001042 should generally be the first function called on this context after init:
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001043 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001044 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
1045 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
1046 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
1047 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001048 Note that for mbedtls_ssl_setup(), you need to be done setting up the
1049 ssl_config structure before calling it.
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001050 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
1051 ssl_set_session() and ssl_set_client_transport_id(), plus
1052 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
1053 (see rename.pl and compat-1.3.h above) and their first argument's type
1054 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001055 * ssl_set_bio() changed signature (contexts merged, order switched, one
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01001056 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001057 * The following functions have been introduced and must be used in callback
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01001058 implementations (SNI, PSK) instead of their *conf counterparts:
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001059 mbedtls_ssl_set_hs_own_cert()
1060 mbedtls_ssl_set_hs_ca_chain()
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02001061 mbedtls_ssl_set_hs_psk()
1062 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001063 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001064 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001065 pointer, parameters reordered).
1066 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
1067 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001068 * The SSL debug callback gained two new arguments (file name, line number).
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001069 * Debug modes were removed.
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01001070 * mbedtls_ssl_conf_truncated_hmac() now returns void.
1071 * mbedtls_memory_buffer_alloc_init() now returns void.
1072 * X.509 verification flags are now an uint32_t. Affect the signature of:
1073 mbedtls_ssl_get_verify_result()
1074 mbedtls_x509_ctr_verify_info()
1075 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02001076 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
1077 * The following functions changed prototype to avoid an in-out length
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02001078 parameter:
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02001079 mbedtls_base64_encode()
1080 mbedtls_base64_decode()
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02001081 mbedtls_mpi_write_string()
1082 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02001083 * In the NET module, all "int" and "int *" arguments for file descriptors
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02001084 changed type to "mbedtls_net_context *".
1085 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01001086 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
1087 return void.
1088 * ecdsa_write_signature() gained an addtional md_alg argument and
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01001089 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02001090 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
1091 * Last argument of x509_crt_check_key_usage() and
1092 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00001093 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02001094 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
1095 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02001096 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001097 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
1098 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02001099 length parameter to include the terminating null byte for PEM input.
1100 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001101 * calloc() is now used instead of malloc() everywhere. API of platform
1102 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02001103 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001104 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
1105 (support for renegotiation now needs explicit enabling in config.h).
1106 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001107 in config.h
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02001108 * net_connect() and net_bind() have a new 'proto' argument to choose
1109 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02001110 Their 'port' argument type is changed to a string.
1111 * Some constness fixes
1112
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02001113Removals
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02001114 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001115 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
1116 mbedtls_ecp_muladd().
1117 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
1118 (use generic functions from md.h)
1119 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
1120 waiting function.
1121 * Removed test DHM parameters from the test certs module.
1122 * Removed the PBKDF2 module (use PKCS5).
1123 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
1124 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
1125 * Removed openssl.h (very partial OpenSSL compatibility layer).
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001126 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
1127 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
1128 been removed (compiler is required to support 32-bit operations).
1129 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001130 * Removed test program o_p_test, the script compat.sh does more.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001131 * Removed test program ssl_test, superseded by ssl-opt.sh.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001132 * Removed helper script active-config.pl
1133
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02001134New deprecations
1135 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001136 argument (allowing memory savings if HMAC is not used)
1137
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01001138Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001139 * Renamed a few headers to include _internal in the name. Those headers are
1140 not supposed to be included by users.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001141 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001142 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02001143 * Changed cipher_base_t into an opaque structure.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001144 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
1145 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001146 * Removed r and s from ecdsa_context
1147 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01001148
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02001149Default behavior changes
1150 * The default minimum TLS version is now TLS 1.0.
1151 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01001152 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001153 * Support for receiving SSLv2 ClientHello is now disabled by default at
1154 compile time.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01001155 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02001156 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
1157 enabled in the default configuration, this is only noticeable if using a
1158 custom config.h
1159 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
1160 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
1161 chain verification.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001162 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001163 * The following functions are now case-sensitive:
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001164 mbedtls_cipher_info_from_string()
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001165 mbedtls_ecp_curve_info_from_name()
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001166 mbedtls_md_info_from_string()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001167 mbedtls_ssl_ciphersuite_from_string()
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001168 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001169
1170Requirement changes
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001171 * The minimum MSVC version required is now 2010 (better C99 support).
1172 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
1173 * Compiler is required to support C99 types such as long long and uint32_t.
1174
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02001175API changes from the 1.4 preview branch
1176 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
1177 new prototype, and mbedtls_ssl_set_read_timeout().
1178 * The following functions now return void:
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02001179 mbedtls_ssl_conf_transport()
1180 mbedtls_ssl_conf_max_version()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001181 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001182 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
1183 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
1184 an example implementation, see mbedtls_timing_delay_context and
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001185 mbedtls_timing_set/get_delay().
1186 * With UDP sockets, it is no longer necessary to call net_bind() again
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001187 after a successful net_accept().
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001188
1189Changes
1190 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02001191 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01001192 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
1193 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02001194
1195= mbed TLS 1.3 branch
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001196
1197Security
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02001198 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
1199 extendedKeyUsage on the leaf certificate was lost (results not accessible
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02001200 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02001201 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02001202 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01001203
1204Features
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001205 * Improve ECC performance by using more efficient doubling formulas
1206 (contributed by Peter Dettman).
1207 * Add x509_crt_verify_info() to display certificate verification results.
1208 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00001209 (contributed by Daniel Kahn Gillmor).
1210 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00001211 * Add support for id-at-uniqueIdentifier in X.509 names.
1212 * Add support for overriding snprintf() (except on Windows) and exit() in
1213 the platform layer.
1214 * Add an option to use macros instead of function pointers in the platform
1215 layer (helps get rid of unwanted references).
1216 * Improved Makefiles for Windows targets by fixing library targets and making
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001217 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001218 * The benchmark program also prints heap usage for public-key primitives
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001219 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001220 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001221 speed and RAM (heap only for now) usage.
1222 * New script memory.sh helps measuring the ROM and RAM requirements of two
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01001223 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01001224 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001225 warnings on use of deprecated functions (with GCC and Clang only).
1226 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001227 errors on use of deprecated functions.
1228
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001229Bugfix
1230 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001231 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
1232 * Fix bug in entropy.c when THREADING_C is also enabled that caused
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001233 entropy_free() to crash (thanks to Rafał Przywara).
1234 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001235 once on the same context.
1236 * Fix bug in ssl_mail_client when password is longer that username (found
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001237 by Bruno Pape).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001238 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1239 (detected by Clang's 3.6 UBSan).
1240 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001241 initialized but not set (found by pravic).
1242 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001243 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001244 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001245 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1246 ssl_write() is called before the handshake is finished (introduced in
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001247 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001248 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1249 rejected.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001250 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001251 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
1252 * Fix hardclock() (only used in the benchmarking program) with some
1253 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001254 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001255 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1256 platforms.
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001257 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
1258 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001259 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1260 in 1.3.10).
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001261 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
1262 * Add missing dependency on SHA-256 in some x509 programs (reported by
1263 Gergely Budai).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001264 * Fix bug related to ssl_set_curves(): the client didn't check that the
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001265 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001266
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001267Changes
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001268 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1269 * Remove potential sources of timing variations (some contributed by Pascal
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001270 Junod).
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001271 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001272 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
1273 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001274 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
1275 more flexible (warning: OFLAGS is not used any more) (see the README)
1276 (contributed by Alon Bar-Lev).
1277 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001278 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001279 * Move from SHA-1 to SHA-256 in example programs using signatures
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001280 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001281 * Remove some unneeded inclusions of header files from the standard library
1282 "minimize" others (eg use stddef.h if only size_t is needed).
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001283 * Change #include lines in test files to use double quotes instead of angle
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001284 brackets for uniformity with the rest of the code.
1285 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001286
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001287= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001288Security
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001289 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001290 full and polarssl_free() is called (found by Mark Hasemeyer)
1291 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1292 not by default).
1293 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001294 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001295 client certificate) (found using Codenomicon Defensics).
1296 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1297 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001298 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001299 * Fix potential stack overflow while parsing crafted X.509 certificates
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001300 (TLS server is not affected if it doesn't ask for a client certificate)
1301 (found using Codenomicon Defensics).
1302 * Fix timing difference that could theoretically lead to a
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001303 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001304 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001305
1306Features
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001307 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001308 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
Paul Bakker6152b022015-04-14 15:00:09 +02001309 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001310 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001311 * Add x509_crl_parse_der().
1312 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001313 length of an X.509 verification chain.
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001314 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001315 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
1316 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001317 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001318 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1319 a compatible enough libc (eg uClibc).
1320 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001321 while using the default ciphersuite list.
1322 * Added new error codes and debug messages about selection of
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001323 ciphersuite/certificate.
1324
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001325Bugfix
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001326 * Stack buffer overflow if ctr_drbg_update() is called with too large
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001327 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1328 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001329 if memory_buffer_alloc_init() was called with buf not aligned and len not
1330 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001331 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001332 by Julian Ospald).
1333 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001334 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1335 multiple of 8 (found by Gergely Budai).
1336 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1337 Peter Vaskovic).
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001338 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1339 * ssl_get_verify_result() now works even if the handshake was aborted due
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001340 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001341 * Skip writing and parsing signature_algorithm extension if none of the
1342 key exchanges enabled needs certificates. This fixes a possible interop
1343 issue with some servers when a zero-length extension was sent. (Reported
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001344 by Peter Dettman.)
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001345 * On a 0-length input, base64_encode() did not correctly set output length
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001346 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001347
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001348Changes
1349 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
Paul Bakkere522d0f2015-01-14 16:12:48 +01001350 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001351 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001352 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001353 * Forbid repeated extensions in X.509 certificates.
1354 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001355 * A specific error is now returned when there are ciphersuites in common
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001356 but none of them is usable due to external factors such as no certificate
Paul Bakker9eac4f72014-10-20 13:56:15 +02001357 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001358 * It is now possible to disable negotiation of truncated HMAC server-side
1359 at runtime with ssl_set_truncated_hmac().
1360 * Example programs for SSL client and server now disable SSLv3 by default.
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001361 * Example programs for SSL client and server now disable RC4 by default.
Paul Bakkerb082bb52014-10-20 13:37:51 +02001362 * Use platform.h in all test suites and programs.
1363
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001364= PolarSSL 1.3.9 released 2014-10-20
Paul Bakkerb082bb52014-10-20 13:37:51 +02001365Security
1366 * Lowest common hash was selected from signature_algorithms extension in
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001367 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001368 * Remotely-triggerable memory leak when parsing some X.509 certificates
1369 (server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001370 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001371 * Remotely-triggerable memory leak when parsing crafted ClientHello
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001372 (not affected if ECC support was compiled out) (found using Codenomicon
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001373 Defensics).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001374
1375Bugfix
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001376 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001377 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
1378 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001379 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1380 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001381 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1382 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001383 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001384 * ssl_read() could return non-application data records on server while
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001385 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001386 * Server-initiated renegotiation would fail with non-blocking I/O if the
1387 write callback returned WANT_WRITE when requesting renegotiation.
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001388 * ssl_close_notify() could send more than one message in some circumstances
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001389 with non-blocking I/O.
1390 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1391 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001392 * Fix compile error with armcc in mpi_is_prime()
1393 * Fix potential bad read in parsing ServerHello (found by Adrien
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02001394 Vialletelle).
1395
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001396Changes
1397 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02001398 standard defining how to use SHA-2 with SSL 3.0).
1399 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02001400 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001401 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
1402 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001403 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
Paul Bakker1910aa72014-07-11 11:28:56 +02001404 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02001405 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
1406 RSA keys.
1407 * Accept spaces at end of line or end of buffer in base64_decode().
1408 * X.509 certificates with more than one AttributeTypeAndValue per
1409 RelativeDistinguishedName are not accepted any more.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001410
1411= PolarSSL 1.3.8 released 2014-07-11
1412Security
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02001413 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1414 It was possible to crash the server (and client) using crafted messages
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02001415 when a GCM suite was chosen.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02001416
1417Features
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02001418 * Add CCM module and cipher mode to Cipher Layer
1419 * Support for CCM and CCM_8 ciphersuites
Paul Bakker23647b42014-07-04 15:00:12 +02001420 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
1421 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02001422 * Blowfish in the cipher layer now supports variable length keys.
1423 * Add example config.h for PSK with CCM, optimized for low RAM usage.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001424 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Paul Bakker863989b2014-06-12 21:49:01 +02001425 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
1426 from the default list (inactive by default).
1427 * Add server-side enforcement of sent renegotiation requests
Paul Bakker34617722014-06-13 17:20:13 +02001428 (ssl_set_renegotiation_enforced())
1429 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02001430 ciphersuites to use and save some memory if the list is small.
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02001431
1432Changes
Paul Bakker28476e22014-07-01 15:59:04 +02001433 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
1434 required on some platforms (e.g. OpenBSD)
Paul Bakker863989b2014-06-12 21:49:01 +02001435 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
Paul Bakker5593f7c2014-05-06 10:29:28 +02001436 against unwanted compiler optimizations
1437 * md_list() now returns hashes strongest first
Paul Bakker1ebc0c52014-05-22 15:47:58 +02001438 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
Paul Bakkerdff31392014-05-22 15:06:41 +02001439 strongest offered by client.
Paul Bakker0f651c72014-05-22 15:12:19 +02001440 * All public contexts have _init() and _free() functions now for simpler
1441 usage pattern
Paul Bakker49033ba2014-06-12 21:46:13 +02001442
1443Bugfix
1444 * Fix in debug_print_msg()
1445 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakker3c38f292014-06-13 17:37:46 +02001446 * Remove less-than-zero checks on unsigned numbers
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001447 * Stricter check on SSL ClientHello internal sizes compared to actual packet
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02001448 size (found by TrustInSoft)
1449 * Fix WSAStartup() return value check (found by Peter Vaskovic)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001450 * Other minor issues (found by Peter Vaskovic)
1451 * Fix symlink command for cross compiling with CMake (found by Andre
1452 Heinecke)
1453 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02001454 * Very small records were incorrectly rejected when truncated HMAC was in
1455 use with some ciphersuites and versions (RC4 in all versions, CBC with
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02001456 versions < TLS 1.1).
1457 * Very large records using more than 224 bytes of padding were incorrectly
1458 rejected with CBC-based ciphersuites and TLS >= 1.1
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07001459 * Very large records using less padding could cause a buffer overread of up
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02001460 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
1461 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02001462 been removed in 1.3.6.)
1463 * Restore ability to locally trust a self-signed cert that is not a proper
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02001464 CA for use as an end entity certificate. (This had been removed in
1465 1.3.6.)
1466 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02001467 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
Paul Bakkerd5983182014-07-04 13:50:31 +02001468 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1469 * Fix off-by-one error in parsing Supported Point Format extension that
Paul Bakker6c343d72014-07-10 14:36:19 +02001470 caused some handshakes to fail.
1471 * Fix possible miscomputation of the premaster secret with DHE-PSK key
Paul Bakker5593f7c2014-05-06 10:29:28 +02001472 exchange that caused some handshakes to fail with other implementations.
Paul Bakker47431b62014-05-02 13:27:13 +02001473 (Failure rate <= 1/255 with common DHM moduli.)
Paul Bakkereaebbd52014-04-25 15:04:14 +02001474 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerc73079a2014-04-25 16:34:30 +02001475 * Fix base64_decode() to return and check length correctly (in case of
1476 tight buffers)
Paul Bakker0f90d7d2014-04-30 11:49:44 +02001477 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
1478 by Hui Dong)
Paul Bakker92478c32014-04-25 15:18:34 +02001479
Paul Bakker088c5c52014-04-25 11:11:10 +02001480= PolarSSL 1.3.7 released on 2014-05-02
1481Features
1482 * debug_set_log_mode() added to determine raw or full logging
Paul Bakker92478c32014-04-25 15:18:34 +02001483 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker63844402014-04-30 15:34:12 +02001484 * version_check_feature() added to check for compile-time options at
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02001485 run-time
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02001486
Paul Bakker088c5c52014-04-25 11:11:10 +02001487Changes
Paul Bakkere92f73d2014-04-18 14:08:26 +02001488 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
1489 checked and filled in the relevant module headers
1490 * Debug module only outputs full lines instead of parts
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02001491 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
1492 * AES-NI now compiles with "old" assemblers too
Paul Bakkerfdba4682014-04-25 11:48:35 +02001493 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker61885c72014-04-25 12:59:03 +02001494
1495Bugfix
Paul Bakkera7036632014-04-30 10:15:38 +02001496 * Only iterate over actual certificates in ssl_write_certificate_request()
1497 (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02001498 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
Paul Bakkerf96f7b62014-04-30 16:02:38 +02001499 Karger)
Paul Bakker33dc46b2014-04-30 16:11:39 +02001500 * cert_write app should use subject of issuer certificate as issuer of cert
1501 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02001502 ciphersuites, for full SSL frames of data.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02001503 * Improve interoperability by not writing extension length in ClientHello /
Markus Pfeiffera26a0052014-04-22 20:16:15 +00001504 ServerHello when no extensions are present (found by Matthew Page)
Barry K. Nathancf975f52014-04-23 17:40:25 -07001505 * rsa_check_pubkey() now allows an E up to N
1506 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakkere92f73d2014-04-18 14:08:26 +02001507 * mpi_fill_random() was creating numbers larger than requested on
Paul Bakker784b04f2014-04-11 15:33:59 +02001508 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001509 * Fix dependencies issues in X.509 test suite.
Paul Bakker27e36d32014-04-08 12:33:37 +02001510 * Some parts of ssl_tls.c were compiled even when the module was disabled.
1511 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Paul Bakker1cfc4582014-04-09 15:25:13 +02001512 * Fix detection of Clang on some Apple platforms with CMake
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001513 (found by Barry K. Nathan)
Paul Bakker59366212014-04-09 15:55:20 +02001514
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001515= PolarSSL 1.3.6 released on 2014-04-11
1516
Paul Bakker27e36d32014-04-08 12:33:37 +02001517Features
Paul Bakker4984d3c2014-04-04 15:39:37 +02001518 * Support for the ALPN SSL extension
1519 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02001520 * Enable verification of the keyUsage extension for CA and leaf
1521 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02001522 * Enable verification of the extendedKeyUsage extension
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02001523 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker4984d3c2014-04-04 15:39:37 +02001524
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001525Changes
1526 * x509_crt_info() now prints information about parsed extensions as well
1527 * pk_verify() now returns a specific error code when the signature is valid
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02001528 but shorter than the supplied length.
1529 * Use UTC time to check certificate validity.
1530 * Reject certificates with times not in UTC, per RFC 5280.
1531
Paul Bakker4224bc02014-04-08 14:36:50 +02001532Security
1533 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001534 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001535 * The notAfter date of some certificates was no longer checked since 1.3.5.
1536 This affects certificates in the user-supplied chain except the top
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01001537 certificate. If the user-supplied chain contains only one certificates,
Paul Bakker75a28602014-03-31 12:08:17 +02001538 it is not affected (ie, its notAfter date is properly checked).
1539 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02001540 TrustInSoft)
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02001541
1542Bugfix
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02001543 * The length of various ClientKeyExchange messages was not properly checked.
1544 * Some example server programs were not sending the close_notify alert.
Shuo Chen95a0d112014-04-04 21:04:40 -07001545 * Potential memory leak in mpi_exp_mod() when error occurs during
1546 calculation of RR.
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01001547 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
1548 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01001549 Gergely Budai).
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02001550 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
1551 (found by Gergely Budai)
Paul Bakker16300582014-04-11 13:28:43 +02001552 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
1553 Shuo Chen).
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02001554 * oid_get_numeric_string() used to truncate the output without returning an
1555 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001556 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Paul Bakker96d52652014-03-26 16:55:50 +01001557 * Calling pk_debug() on an RSA-alt key would segfault.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001558 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
1559 * Potential buffer overwrite in pem_write_buffer() because of low length
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001560 indication (found by Thijs Alkemade)
Paul Bakker6a28e722014-02-06 13:41:55 +01001561 * EC curves constants, which should be only in ROM since 1.3.3, were also
Paul Bakkerf2561b32014-02-06 15:11:55 +01001562 stored in RAM due to missing 'const's (found by Gergely Budai).
Paul Bakker2ceda572014-02-06 15:55:25 +01001563
1564= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001565Features
1566 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01001567 * Option to set the Curve preference order (disabled by default)
Paul Bakker66ff70d2014-03-26 11:54:05 +01001568 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakker6a28e722014-02-06 13:41:55 +01001569 * Ability to provide alternate timing implementation
1570 * Ability to force the entropy module to use SHA-256 as its basis
1571 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker47703a02014-02-06 15:01:20 +01001572 * Testing script ssl-opt.sh added for testing 'live' ssl option
1573 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01001574 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01001575 * Entropy module now supports seed writing and reading
1576
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001577Changes
1578 * Deprecated the Memory layer
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001579 * entropy_add_source(), entropy_update_manual() and entropy_gather()
Paul Bakker674e0b02014-03-26 13:26:52 +01001580 now thread-safe if POLARSSL_THREADING_C defined
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001581 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001582 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1583 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01001584 * Revamped the compat.sh interoperatibility script to include support for
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001585 testing against GnuTLS
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01001586 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01001587 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001588
Paul Bakker91c61bc2014-03-26 14:06:55 +01001589Security
1590 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001591 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001592 attack was already impossible when authentication is required).
1593 * Check notBefore timestamp of certificates and CRLs from the future.
1594 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001595 * Fixed possible buffer overflow with overlong PSK
Paul Bakkercd6d69a2014-02-06 15:43:21 +01001596 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01001597 TrustInSoft)
Paul Bakker3d52ab72014-03-07 10:33:55 +01001598
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01001599Bugfix
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01001600 * ecp_gen_keypair() does more tries to prevent failure because of
Alex Wilson73491422014-03-06 00:04:09 +10001601 statistics
1602 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001603 * Fixed testing with out-of-source builds using cmake
1604 * Fixed version-major intolerance in server
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01001605 * Fixed CMake symlinking on out-of-source builds
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001606 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001607 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001608 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01001609 Alex Wilson.)
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001610 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
Paul Bakker3d6504a2014-03-17 13:41:51 +01001611 * m_sleep() was sleeping twice too long on most Unix platforms.
1612 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakker77f4f392014-03-26 15:28:55 +01001613 send() would return an EAGAIN error when sending the ticket.
1614 * ssl_cache was leaking memory when reusing a timed out entry containing a
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01001615 client certificate.
Paul Bakker5fff23b2014-03-26 15:34:54 +01001616 * ssl_srv was leaking memory when client presented a timed out ticket
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001617 containing a client certificate
Paul Bakker2aca2412014-01-27 11:49:46 +01001618 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
Paul Bakker3eb96732014-01-22 13:08:19 +01001619 out_ctr failed
Paul Bakker0ac99ca2014-01-22 13:08:44 +01001620 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
Paul Bakker5862eee2014-01-22 14:18:03 +01001621 of one of them failed
Paul Bakker556efba2014-01-24 15:38:12 +01001622 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01001623 * x509_get_current_time() uses localtime_r() to prevent thread issues
Paul Bakker3eb96732014-01-22 13:08:19 +01001624
1625= PolarSSL 1.3.4 released on 2014-01-27
1626Features
1627 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakkerd75ba402014-01-24 16:11:17 +01001628 * Support for RIPEMD-160
Paul Bakkerb84582b2014-01-27 12:23:43 +01001629 * Support for AES CFB8 mode
1630 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01001631
1632Bugfix
1633 * Potential memory leak in bignum_selftest()
Paul Bakkerb84582b2014-01-27 12:23:43 +01001634 * Replaced expired test certificate
1635 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakker3eb96732014-01-22 13:08:19 +01001636 * net module handles timeouts on blocking sockets better (found by Tilman
Paul Bakker5bc07a32013-12-31 10:57:44 +01001637 Sauerbeck)
Paul Bakker014f1432013-12-02 14:54:01 +01001638 * Assembly format fixes in bn_mul.h
1639
Paul Bakker9dc53a92013-12-02 14:55:28 +01001640Security
1641 * Missing MPI_CHK calls added around unguarded mpi calls (found by
Paul Bakker48d78a52013-12-05 16:11:38 +01001642 TrustInSoft)
Paul Bakkerfdf94692013-12-17 13:09:31 +01001643
Paul Bakker5a607d22013-12-17 14:33:42 +01001644= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker23116fd2013-12-30 14:09:47 +01001645Features
Paul Bakkerf9c49532013-12-19 15:40:58 +01001646 * EC key generation support in gen_key app
Paul Bakker014f1432013-12-02 14:54:01 +01001647 * Support for adhering to client ciphersuite order preference
Paul Bakker7aa03752013-11-26 17:37:31 +01001648 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
1649 * Support for Curve25519
1650 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
1651 * Support for IPv6 in the NET module
Paul Bakkerc3d0d072013-12-02 14:50:49 +01001652 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakker4040d7e2013-12-02 14:52:57 +01001653 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakkerb14817d2013-12-02 22:03:23 +01001654
Paul Bakker5ab68ba2013-12-17 13:10:48 +01001655Changes
Paul Bakkerc7387912013-12-31 10:32:50 +01001656 * gen_prime() speedup
Paul Bakkera8fd3e32013-12-31 11:54:08 +01001657 * Speedup of ECP multiplication operation
Paul Bakker7aa03752013-11-26 17:37:31 +01001658 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001659 * Dropped use of readdir_r() instead of readdir() with threading support
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01001660 * More constant-time checks in the RSA module
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001661 * Split off curves from ecp.c into ecp_curves.c
Paul Bakkera9a028e2013-11-21 17:31:06 +01001662 * Curves are now stored fully in ROM
Paul Bakker7aa03752013-11-26 17:37:31 +01001663 * Memory usage optimizations in ECP module
1664 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker6f0636a2013-12-16 15:24:05 +01001665
Paul Bakkerf70fe812013-12-16 16:43:10 +01001666Bugfix
Paul Bakker1a56fc92013-12-19 13:51:24 +01001667 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakker6ea1a952013-12-31 11:16:03 +01001668 * Fixed X.509 hostname comparison (with non-regular characters)
1669 * SSL now gracefully handles missing RNG
Paul Bakker6992eb72013-12-31 11:35:16 +01001670 * Missing defines / cases for RSA_PSK key exchange
1671 * crypt_and_hash app checks MAC before final decryption
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001672 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakker956c9e02013-12-19 14:42:28 +01001673 * Memory leak in benchmark application
1674 * Fixed x509_crt_parse_path() bug on Windows platforms
1675 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
1676 TrustInSoft)
Paul Bakkerf4dc1862013-11-04 17:29:42 +01001677 * Fixed potential overflow in certificate size verification in
Paul Bakker08bb1872013-10-28 14:03:26 +01001678 ssl_write_certificate() (found by TrustInSoft)
1679
Paul Bakker3f917e22013-10-28 14:16:59 +01001680Security
Paul Bakker16421222013-10-28 14:37:09 +01001681 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Paul Bakker08bb1872013-10-28 14:03:26 +01001682 TrustInSoft)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001683
1684= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakkere1121b62013-10-31 14:37:37 +01001685Features
Paul Bakker7b0be682013-10-29 14:24:37 +01001686 * PK tests added to test framework
Paul Bakkere1121b62013-10-31 14:37:37 +01001687 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001688 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker677377f2013-10-28 12:54:26 +01001689
Paul Bakker16421222013-10-28 14:37:09 +01001690Changes
Paul Bakker677377f2013-10-28 12:54:26 +01001691 * Padding checks in cipher layer are now constant-time
Paul Bakker45a2c8d2013-10-28 12:57:08 +01001692 * Value comparisons in SSL layer are now constant-time
Paul Bakker68037da2013-10-28 14:02:40 +01001693 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakker50dc8502013-10-28 21:19:10 +01001694 * SSL Renegotiation was refactored
Paul Bakker93c6aa42013-10-28 22:28:09 +01001695
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01001696Bugfix
Paul Bakkerfa6a6202013-10-28 18:48:30 +01001697 * More stringent checks in cipher layer
Paul Bakkere1121b62013-10-31 14:37:37 +01001698 * Server does not send out extensions not advertised by client
Paul Bakker677377f2013-10-28 12:54:26 +01001699 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001700 * Misc fixes and additions to dependency checks
Paul Bakkerb799dec2013-10-11 10:03:27 +02001701 * Const correctness
1702 * cert_write with selfsign should use issuer_name as subject_name
Paul Bakker376e8152013-10-15 12:44:23 +02001703 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerf34673e2013-10-15 12:46:17 +02001704 * Defines to handle UEFI environment under MSVC
Paul Bakkerb799dec2013-10-11 10:03:27 +02001705 * Server-side initiated renegotiations send HelloRequest
Paul Bakkerddba8822013-10-11 09:21:56 +02001706
1707= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakker16770332013-10-11 09:59:44 +02001708Features
Paul Bakkerbe089b02013-10-14 15:51:50 +02001709 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakkera7ea6a52013-10-15 11:55:10 +02001710 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerddba8822013-10-11 09:21:56 +02001711 * Support for RSA-PSK key-exchange and ciphersuites
1712
1713Changes
1714 * RSA blinding locks for a smaller amount of time
1715 * TLS compression only allocates working buffer once
Paul Bakkerfcc17212013-10-11 09:36:52 +02001716 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02001717 * config.h is more script-friendly
Paul Bakker4aa40d42013-10-11 10:49:24 +02001718
Paul Bakkerb7c13122013-10-11 10:51:32 +02001719Bugfix
Paul Bakker5191e922013-10-11 10:54:28 +02001720 * Missing MSVC defines added
Paul Bakkerddba8822013-10-11 09:21:56 +02001721 * Compile errors with POLARSSL_RSA_NO_CRT
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001722 * Header files with 'polarssl/'
Paul Bakker41c83d32013-03-20 14:39:14 +01001723 * Const correctness
1724 * Possible naming collision in dhm_context
1725 * Better support for MSVC
1726 * threading_set_alt() name
1727 * Added missing x509write_crt_set_version()
Paul Bakkerc8676782013-08-28 12:15:11 +02001728
1729= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker8f4ddae2013-04-15 15:09:54 +02001730Features
Paul Bakkerb91c2b52013-04-19 16:05:16 +02001731 * Elliptic Curve Cryptography module added
Paul Bakker6e339b52013-07-03 13:37:05 +02001732 * Elliptic Curve Diffie Hellman module added
1733 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
Paul Bakker2466d932013-09-28 14:40:38 +02001734 (ECDHE-based ciphersuites)
Paul Bakker5ad403f2013-09-18 21:21:30 +02001735 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
Paul Bakkerf85778e2013-07-19 14:55:25 +02001736 (ECDSA-based ciphersuites)
1737 * Ability to specify allowed ciphersuites based on the protocol version.
1738 * PSK and DHE-PSK based ciphersuites added
1739 * Memory allocation abstraction layer added
Paul Bakkerda4d1c32013-08-14 12:24:34 +02001740 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
1741 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker936539a2013-08-14 13:49:20 +02001742 * Public Key abstraction layer added
Paul Bakkerca174fe2013-08-28 16:31:30 +02001743 * Parsing Elliptic Curve keys
1744 * Parsing Elliptic Curve certificates
Paul Bakker7fb4a792013-09-12 12:00:52 +02001745 * Support for max_fragment_length extension (RFC 6066)
1746 * Support for truncated_hmac extension (RFC 6066)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02001747 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
Paul Bakker8b817dc2013-09-25 18:03:58 +02001748 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
1749 * Support for session tickets (RFC 5077)
Paul Bakker41c83d32013-03-20 14:39:14 +01001750 * Certificate Request (CSR) generation with extensions (key_usage,
Paul Bakker9b5798d2013-03-13 13:53:00 +01001751 ns_cert_type)
Paul Bakkerd2f068e2013-08-27 21:19:20 +02001752 * X509 Certificate writing with extensions (basic_constraints,
1753 issuer_key_identifier, etc)
Paul Bakker68884e32013-01-07 18:20:04 +01001754 * Optional blinding for RSA, DHM and EC
1755 * Support for multiple active certificate / key pairs in SSL servers for
Darryl Green11999bb2018-03-13 15:22:58 +00001756 the same host (Not to be confused with SNI!)
Paul Bakker9b5798d2013-03-13 13:53:00 +01001757
Paul Bakker90f042d2013-03-11 11:38:44 +01001758Changes
Paul Bakkerc0463502013-02-14 11:19:38 +01001759 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
1760 individually
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01001761 * Introduced separate SSL Ciphersuites module that is based on
1762 Cipher and MD information
Paul Bakkerc70b9822013-04-07 22:00:46 +02001763 * Internals for SSL module adapted to have separate IV pointer that is
1764 dynamically set (Better support for hardware acceleration)
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02001765 * Moved all OID functionality to a separate module. RSA function
Paul Bakker2fbefde2013-06-29 16:01:15 +02001766 prototypes for the RSA sign and verify functions changed as a result
1767 * Split up the GCM module into a starts/update/finish cycle
Paul Bakkere2ab84f2013-06-29 18:24:32 +02001768 * Client and server now filter sent and accepted ciphersuites on minimum
1769 and maximum protocol version
Paul Bakker0be444a2013-08-27 21:55:01 +02001770 * Ability to disable server_name extension (RFC 6066)
Paul Bakkere47b34b2013-02-27 14:48:00 +01001771 * Renamed error_strerror() to the less conflicting polarssl_strerror()
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001772 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9e36f042013-06-30 14:34:05 +02001773 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakker548957d2013-08-30 10:30:02 +02001774 * All RSA operations require a random generator for blinding purposes
Paul Bakker45f21c72013-09-18 15:33:49 +02001775 * X509 core refactored
1776 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker5ad403f2013-09-18 21:21:30 +02001777 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02001778 * Support faulty X509 v1 certificates with extensions
1779 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakkere47b34b2013-02-27 14:48:00 +01001780
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001781Bugfix
Paul Bakker73d44312013-05-22 13:56:26 +02001782 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02001783 * zlib compression/decompression skipped on empty blocks
Paul Bakker1e6a1752013-07-26 14:10:22 +02001784 * Support for AIX header locations in net.c module
Paul Bakker003dbad2013-09-09 17:26:14 +02001785 * Fixed file descriptor leaks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001786
Paul Bakkeraab30c12013-08-30 11:00:25 +02001787Security
1788 * RSA blinding on CRT operations to counter timing attacks
1789 (found by Cyril Arnaud and Pierre-Alain Fouque)
1790
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02001791
1792= Version 1.2.14 released 2015-05-??
1793
1794Security
1795 * Fix potential invalid memory read in the server, that allows a client to
1796 crash it remotely (found by Caj Larsson).
1797 * Fix potential invalid memory read in certificate parsing, that allows a
1798 client to crash the server remotely if client authentication is enabled
1799 (found using Codenomicon Defensics).
1800 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
1801 https://dl.acm.org/citation.cfm?id=2714625
1802
1803Bugfix
1804 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
1805 * Fix hardclock() (only used in the benchmarking program) with some
1806 versions of mingw64 (found by kxjhlele).
1807 * Fix warnings from mingw64 in timing.c (found by kxjklele).
1808 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1809 platforms (found with Coverity Scan).
1810
1811= Version 1.2.13 released 2015-02-16
1812Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
1813 this will be made in the 1.2 branch at this point.
1814
1815Security
1816 * Fix remotely-triggerable uninitialised pointer dereference caused by
1817 crafted X.509 certificate (TLS server is not affected if it doesn't ask
1818 for a client certificate) (found using Codenomicon Defensics).
1819 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1820 (TLS server is not affected if it doesn't ask for a client certificate)
1821 (found using Codenomicon Defensics).
1822 * Fix potential stack overflow while parsing crafted X.509 certificates
1823 (TLS server is not affected if it doesn't ask for a client certificate)
1824 found using Codenomicon Defensics).
1825 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
1826 (TLS server is not affected if it doesn't ask for a client certificate).
1827
1828Bugfix
1829 * Fix potential undefined behaviour in Camellia.
1830 * Fix memory leaks in PKCS#5 and PKCS#12.
1831 * Stack buffer overflow if ctr_drbg_update() is called with too large
1832 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1833 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
1834 in 1.2.12).
1835 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1836 Peter Vaskovic).
1837 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1838 * ssl_get_verify_result() now works even if the handshake was aborted due
1839 to a failed verification (found by Fredrik Axelsson).
1840 * Skip writing and parsing signature_algorithm extension if none of the
1841 key exchanges enabled needs certificates. This fixes a possible interop
1842 issue with some servers when a zero-length extension was sent. (Reported
1843 by Peter Dettman.)
1844 * On a 0-length input, base64_encode() did not correctly set output length
1845 (found by Hendrik van den Boogaard).
1846
1847Changes
1848 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
1849 * Forbid repeated extensions in X.509 certificates.
1850 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
1851 length of an X.509 verification chain (default = 8).
Paul Bakkera6c5ea22014-10-24 16:26:29 +02001852= Version 1.2.12 released 2014-10-24
1853
1854Security
1855 * Remotely-triggerable memory leak when parsing some X.509 certificates
1856 (server is not affected if it doesn't ask for a client certificate).
1857 (Found using Codenomicon Defensics.)
1858
1859Bugfix
1860 * Fix potential bad read in parsing ServerHello (found by Adrien
1861 Vialletelle).
1862 * ssl_close_notify() could send more than one message in some circumstances
1863 with non-blocking I/O.
1864 * x509_crt_parse() did not increase total_failed on PEM error
1865 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1866 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1867 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
1868 * ssl_read() could return non-application data records on server while
1869 renegotation was pending, and on client when a HelloRequest was received.
1870 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
1871
1872Changes
1873 * X.509 certificates with more than one AttributeTypeAndValue per
1874 RelativeDistinguishedName are not accepted any more.
1875 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
1876 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
1877 * Accept spaces at end of line or end of buffer in base64_decode().
1878
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02001879= Version 1.2.11 released 2014-07-11
1880Features
1881 * Entropy module now supports seed writing and reading
1882
1883Changes
1884 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
1885 * Improvements to the CMake build system, contributed by Julian Ospald.
1886 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1887 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
1888 * Improvements to tests/Makefile, contributed by Oden Eriksson.
1889 * Use UTC time to check certificate validity.
1890 * Reject certificates with times not in UTC, per RFC 5280.
1891 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
1892 against unwanted compiler optimizations
1893
1894Security
1895 * Forbid change of server certificate during renegotiation to prevent
1896 "triple handshake" attack when authentication mode is optional (the
1897 attack was already impossible when authentication is required).
1898 * Check notBefore timestamp of certificates and CRLs from the future.
1899 * Forbid sequence number wrapping
1900 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
1901 TrustInSoft)
1902 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1903 It was possible to crash the server (and client) using crafted messages
1904 when a GCM suite was chosen.
1905
1906Bugfix
1907 * Fixed X.509 hostname comparison (with non-regular characters)
1908 * SSL now gracefully handles missing RNG
1909 * crypt_and_hash app checks MAC before final decryption
1910 * Fixed x509_crt_parse_path() bug on Windows platforms
1911 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
1912 TrustInSoft)
1913 * Fixed potential overflow in certificate size verification in
1914 ssl_write_certificate() (found by TrustInSoft)
1915 * Fix ASM format in bn_mul.h
1916 * Potential memory leak in bignum_selftest()
1917 * Replaced expired test certificate
1918 * ssl_mail_client now terminates lines with CRLF, instead of LF
1919 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
1920 * Fixed testing with out-of-source builds using cmake
1921 * Fixed version-major intolerance in server
1922 * Fixed CMake symlinking on out-of-source builds
1923 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
1924 Alex Wilson.)
1925 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
1926 out_ctr failed
1927 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
1928 of one of them failed
1929 * x509_get_current_time() uses localtime_r() to prevent thread issues
1930 * Some example server programs were not sending the close_notify alert.
1931 * Potential memory leak in mpi_exp_mod() when error occurs during
1932 calculation of RR.
1933 * Improve interoperability by not writing extension length in ClientHello
1934 when no extensions are present (found by Matthew Page)
1935 * rsa_check_pubkey() now allows an E up to N
1936 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
1937 * mpi_fill_random() was creating numbers larger than requested on
1938 big-endian platform when size was not an integer number of limbs
1939 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
1940 * Stricter check on SSL ClientHello internal sizes compared to actual packet
1941 size (found by TrustInSoft)
1942 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
1943 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
1944 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1945 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
1946 * Fix base64_decode() to return and check length correctly (in case of
1947 tight buffers)
1948
Paul Bakker3a2c0562013-10-07 16:22:05 +02001949= Version 1.2.10 released 2013-10-07
1950Changes
1951 * Changed RSA blinding to a slower but thread-safe version
1952
1953Bugfix
1954 * Fixed memory leak in RSA as a result of introduction of blinding
1955 * Fixed ssl_pkcs11_decrypt() prototype
1956 * Fixed MSVC project files
1957
Paul Bakkerd93d28e2013-10-01 10:12:42 +02001958= Version 1.2.9 released 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02001959Changes
1960 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
1961
1962Bugfix
1963 * Fixed potential memory leak when failing to resume a session
1964 * Fixed potential file descriptor leaks (found by Remi Gacogne)
1965 * Minor fixes
1966
1967Security
1968 * Fixed potential heap buffer overflow on large hostname setting
1969 * Fixed potential negative value misinterpretation in load_file()
1970 * RSA blinding on CRT operations to counter timing attacks
1971 (found by Cyril Arnaud and Pierre-Alain Fouque)
1972
Paul Bakkerde656232013-06-24 19:07:34 +02001973= Version 1.2.8 released 2013-06-19
1974Features
1975 * Parsing of PKCS#8 encrypted private key files
1976 * PKCS#12 PBE and derivation functions
1977 * Centralized module option values in config.h to allow user-defined
1978 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
1979
1980Changes
1981 * HAVEGE random generator disabled by default
1982 * Internally split up x509parse_key() into a (PEM) handler function
1983 and specific DER parser functions for the PKCS#1 and unencrypted
1984 PKCS#8 private key formats
1985 * Added mechanism to provide alternative implementations for all
1986 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
Darryl Green11999bb2018-03-13 15:22:58 +00001987 config.h)
Paul Bakkerde656232013-06-24 19:07:34 +02001988 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
1989 old PBKDF2 module
1990
1991Bugfix
1992 * Secure renegotiation extension should only be sent in case client
1993 supports secure renegotiation
1994 * Fixed offset for cert_type list in ssl_parse_certificate_request()
1995 * Fixed const correctness issues that have no impact on the ABI
1996 * x509parse_crt() now better handles PEM error situations
1997 * ssl_parse_certificate() now calls x509parse_crt_der() directly
1998 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00001999 certificates
Paul Bakkerde656232013-06-24 19:07:34 +02002000 * x509parse_crtpath() is now reentrant and uses more portable stat()
2001 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
2002 * Fixed values for 2-key Triple DES in cipher layer
2003 * ssl_write_certificate_request() can handle empty ca_chain
2004
2005Security
2006 * A possible DoS during the SSL Handshake, due to faulty parsing of
2007 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2008
2009= Version 1.2.7 released 2013-04-13
2010Features
2011 * Ability to specify allowed ciphersuites based on the protocol version.
2012
2013Changes
2014 * Default Blowfish keysize is now 128-bits
2015 * Test suites made smaller to accommodate Raspberry Pi
2016
2017Bugfix
2018 * Fix for MPI assembly for ARM
2019 * GCM adapted to support sizes > 2^29
2020
Paul Bakkerc0463502013-02-14 11:19:38 +01002021= Version 1.2.6 released 2013-03-11
2022Bugfix
2023 * Fixed memory leak in ssl_free() and ssl_reset() for active session
2024 * Corrected GCM counter incrementation to use only 32-bits instead of
Paul Bakkere47b34b2013-02-27 14:48:00 +01002025 128-bits (found by Yawning Angel)
Paul Bakkere3e4a592013-02-28 10:20:53 +01002026 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakker37286a52013-03-06 16:55:11 +01002027 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01002028 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakkerd66f0702013-01-31 16:57:45 +01002029
Paul Bakkerb3869132013-02-28 17:21:01 +01002030Changes
2031 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
2032 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
2033 PKCS#1 v2.1 functions
Paul Bakkera43231c2013-02-28 17:33:49 +01002034 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
2035 or rsa_rsaes_oaep_decrypt()
Paul Bakker78a8c712013-03-06 17:01:52 +01002036 * Re-added handling for SSLv2 Client Hello when the define
2037 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkere81beda2013-03-06 17:40:46 +01002038 * The SSL session cache module (ssl_cache) now also retains peer_cert
2039 information (not the entire chain)
Paul Bakkerb3869132013-02-28 17:21:01 +01002040
Paul Bakkere47b34b2013-02-27 14:48:00 +01002041Security
2042 * Removed further timing differences during SSL message decryption in
2043 ssl_decrypt_buf()
Paul Bakker8804f692013-02-28 18:06:26 +01002044 * Removed timing differences due to bad padding from
2045 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2046 operations
Paul Bakkere47b34b2013-02-27 14:48:00 +01002047
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002048= Version 1.2.5 released 2013-02-02
2049Changes
2050 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakkerd66f0702013-01-31 16:57:45 +01002051 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01002052 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker40865c82013-01-31 17:13:13 +01002053 * Sending of security-relevant alert messages that do not break
2054 interoperability can be switched on/off with the flag
Paul Bakkera35aa542013-03-06 17:06:21 +01002055 POLARSSL_SSL_ALL_ALERT_MESSAGES
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002056
Paul Bakker45829992013-01-03 14:52:21 +01002057Security
2058 * Removed timing differences during SSL message decryption in
2059 ssl_decrypt_buf() due to badly formatted padding
2060
Paul Bakker14c56a32013-01-25 17:11:37 +01002061= Version 1.2.4 released 2013-01-25
Paul Bakker1961b702013-01-25 14:49:24 +01002062Changes
Paul Bakker68884e32013-01-07 18:20:04 +01002063 * More advanced SSL ciphersuite representation and moved to more dynamic
2064 SSL core
Paul Bakker1961b702013-01-25 14:49:24 +01002065 * Added ssl_handshake_step() to allow single stepping the handshake process
2066
Paul Bakker40628ba2013-01-03 10:50:31 +01002067Bugfix
2068 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakker21dca692013-01-03 11:41:08 +01002069 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker9c94cdd2013-01-22 13:45:33 +01002070 * Correctly handle CertificateRequest message in client for <= TLS 1.1
2071 without DN list
Paul Bakker40628ba2013-01-03 10:50:31 +01002072
Paul Bakkerfb1ba782012-11-26 16:28:25 +01002073= Version 1.2.3 released 2012-11-26
2074Bugfix
2075 * Server not always sending correct CertificateRequest message
2076
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002077= Version 1.2.2 released 2012-11-24
Paul Bakkere667c982012-11-20 13:50:22 +01002078Changes
2079 * Added p_hw_data to ssl_context for context specific hardware acceleration
2080 data
Hanno Becker01a0e072017-07-26 11:49:40 +01002081 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkere667c982012-11-20 13:50:22 +01002082
Paul Bakker7c90da92012-11-23 14:02:40 +01002083Bugfixes
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002084 * Fixed client authentication compatibility
2085 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker7c90da92012-11-23 14:02:40 +01002086
Paul Bakker14926332012-11-20 10:58:09 +01002087= Version 1.2.1 released 2012-11-20
Paul Bakker34d8dbc2012-11-14 12:11:38 +00002088Changes
2089 * Depth that the certificate verify callback receives is now numbered
2090 bottom-up (Peer cert depth is 0)
2091
Paul Bakker7a2538e2012-11-02 10:59:36 +00002092Bugfixes
2093 * Fixes for MSVC6
Paul Bakkerd9374b02012-11-02 11:02:58 +00002094 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakkerf02c5642012-11-13 10:25:21 +00002095 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2096 Pégourié-Gonnard)
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01002097 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2098 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00002099 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakker7a2538e2012-11-02 10:59:36 +00002100
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002101= Version 1.2.0 released 2012-10-31
Paul Bakkerfab5c822012-02-06 16:45:10 +00002102Features
2103 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
2104 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
2105 default!
Paul Bakkera8cd2392012-02-11 16:09:32 +00002106 * Added support for wildcard certificates
2107 * Added support for multi-domain certificates through the X509 Subject
2108 Alternative Name extension
Paul Bakkerbdb912d2012-02-13 23:11:30 +00002109 * Added preliminary ASN.1 buffer writing support
2110 * Added preliminary X509 Certificate Request writing support
2111 * Added key_app_writer example application
2112 * Added cert_req example application
Paul Bakker89e80c92012-03-20 13:50:09 +00002113 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker48916f92012-09-16 19:57:18 +00002114 * Added TLS 1.2 support (RFC 5246)
Paul Bakkerca4ab492012-04-18 14:23:57 +00002115 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker01cc3942012-05-08 08:36:15 +00002116 * Added commandline error code convertor (util/strerror)
Paul Bakker05ef8352012-05-08 09:17:57 +00002117 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002118 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002119 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker8d914582012-06-04 12:46:42 +00002120 * Added X509 CA Path support
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00002121 * Added Thumb assembly optimizations
Paul Bakker2770fbd2012-07-03 13:30:23 +00002122 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002123 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakkerf518b162012-08-23 13:03:18 +00002124 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker48916f92012-09-16 19:57:18 +00002125 * Added Secure Renegotiation (RFC 5746)
Paul Bakker29b64762012-09-25 09:36:44 +00002126 * Added predefined DHM groups from RFC 5114
Paul Bakker0a597072012-09-25 21:55:46 +00002127 * Added simple SSL session cache implementation
Paul Bakker5701cdc2012-09-27 21:49:42 +00002128 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1d29fb52012-09-28 13:28:45 +00002129 * Added option to add minimum accepted SSL/TLS protocol version
Paul Bakkerfab5c822012-02-06 16:45:10 +00002130
Paul Bakker1504af52012-02-11 16:17:43 +00002131Changes
2132 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker048d04e2012-02-12 17:31:04 +00002133 * AES code only check for Padlock once
Paul Bakker6b906e52012-05-08 12:01:43 +00002134 * Fixed const-correctness mpi_get_bit()
2135 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker186751d2012-05-08 13:16:14 +00002136 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker4d2c1242012-05-10 14:12:46 +00002137 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakker5b377842012-05-16 07:57:36 +00002138 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002139 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
2140 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkerec636f32012-09-09 19:17:02 +00002141 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker0a597072012-09-25 21:55:46 +00002142 * Revamped session resumption handling
Paul Bakkereb2c6582012-09-27 19:15:01 +00002143 * Generalized external private key implementation handling (like PKCS#11)
2144 in SSL/TLS
Paul Bakker915275b2012-09-28 07:10:55 +00002145 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker5c2364c2012-10-01 14:41:15 +00002146 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker645ce3a2012-10-31 12:32:41 +00002147 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker1504af52012-02-11 16:17:43 +00002148
Paul Bakker37824582012-03-22 14:10:22 +00002149Bugfix
Paul Bakker7beceb22012-03-22 14:19:49 +00002150 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2151 Hui Dong)
Paul Bakker430ffbe2012-05-01 08:14:20 +00002152 * Fixed potential heap corruption in x509_name allocation
Paul Bakker5b377842012-05-16 07:57:36 +00002153 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkerf6198c12012-05-16 08:02:29 +00002154 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2155 #52)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002156 * Handle encryption with private key and decryption with public key as per
Darryl Green11999bb2018-03-13 15:22:58 +00002157 RFC 2313
Paul Bakkercefb3962012-06-27 11:51:09 +00002158 * Handle empty certificate subject names
Paul Bakker535e97d2012-08-23 10:49:55 +00002159 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00002160 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker995a2152012-09-25 08:19:56 +00002161 with carry rollover (found by Ruslan Yushchenko)
Paul Bakkerb00ca422012-09-25 12:10:00 +00002162 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker4f024b72012-10-30 07:29:57 +00002163 * Fixed MPI assembly for SPARC64 platform
Paul Bakker37824582012-03-22 14:10:22 +00002164
Paul Bakker452d5322012-04-05 12:07:34 +00002165Security
Paul Bakker3c16db92012-07-05 13:58:08 +00002166 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2167 Vanderbeken)
Paul Bakker452d5322012-04-05 12:07:34 +00002168
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002169= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002170Bugfix
2171 * Fixed potential memory leak when failing to resume a session
2172 * Fixed potential file descriptor leaks
2173
2174Security
2175 * Potential buffer-overflow for ssl_read_record() (independently found by
2176 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
2177 * Potential negative value misinterpretation in load_file()
2178 * Potential heap buffer overflow on large hostname setting
2179
Paul Bakker248fff52013-06-24 19:08:50 +02002180= Version 1.1.7 released on 2013-06-19
2181Changes
2182 * HAVEGE random generator disabled by default
2183
2184Bugfix
2185 * x509parse_crt() now better handles PEM error situations
2186 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2187 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00002188 certificates
Paul Bakker248fff52013-06-24 19:08:50 +02002189 * Fixed values for 2-key Triple DES in cipher layer
2190 * ssl_write_certificate_request() can handle empty ca_chain
2191
2192Security
2193 * A possible DoS during the SSL Handshake, due to faulty parsing of
2194 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2195
2196= Version 1.1.6 released on 2013-03-11
2197Bugfix
2198 * Fixed net_bind() for specified IP addresses on little endian systems
2199
2200Changes
2201 * Allow enabling of dummy error_strerror() to support some use-cases
2202 * Debug messages about padding errors during SSL message decryption are
2203 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
2204
2205Security
2206 * Removed timing differences during SSL message decryption in
2207 ssl_decrypt_buf()
2208 * Removed timing differences due to bad padding from
2209 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2210 operations
2211
Paul Bakker9d2bb652013-01-25 16:07:49 +01002212= Version 1.1.5 released on 2013-01-16
2213Bugfix
2214 * Fixed MPI assembly for SPARC64 platform
2215 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
2216 * mpi_add_abs() now correctly handles adding short numbers to long numbers
2217 with carry rollover
2218 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
2219 * Prevent reading over buffer boundaries on X509 certificate parsing
2220 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2221 #52)
2222 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2223 Pégourié-Gonnard)
2224 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2225 Pégourié-Gonnard)
2226 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2227 * Memory leak when using RSA_PKCS_V21 operations fixed
2228 * Handle encryption with private key and decryption with public key as per
2229 RFC 2313
2230 * Fixes for MSVC6
2231
2232Security
2233 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2234 Vanderbeken)
2235
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002236= Version 1.1.4 released on 2012-05-31
2237Bugfix
2238 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2239 * Fixed potential heap corruption in x509_name allocation
2240 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2241
Paul Bakkerfad38932012-05-08 09:04:04 +00002242= Version 1.1.3 released on 2012-04-29
2243Bugfix
2244 * Fixed random MPI generation to not generate more size than requested.
2245
2246= Version 1.1.2 released on 2012-04-26
2247Bugfix
2248 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2249 Hui Dong)
2250
2251Security
2252 * Fixed potential memory corruption on miscrafted client messages (found by
2253 Frama-C team at CEA LIST)
2254 * Fixed generation of DHM parameters to correct length (found by Ruslan
2255 Yushchenko)
2256
Paul Bakker99955bf2012-01-23 09:31:41 +00002257= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002258Bugfix
2259 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2260 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002261 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002262 * Fixed multiple compiler warnings for VS6 and armcc
2263 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002264
Paul Bakker08a50882011-12-22 09:43:57 +00002265= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002266Features
2267 * Added ssl_session_reset() to allow better multi-connection pools of
2268 SSL contexts without needing to set all non-connection-specific
Darryl Green11999bb2018-03-13 15:22:58 +00002269 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002270 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2271 supported version to a server to help buggy server implementations.
Darryl Green11999bb2018-03-13 15:22:58 +00002272 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002273 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2274 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002275 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002276 * Added a generic entropy accumulator that provides support for adding
2277 custom entropy sources and added some generic and platform dependent
Darryl Green11999bb2018-03-13 15:22:58 +00002278 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002279
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002280Changes
2281 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002282 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2283 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002284 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002285 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002286 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002287 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2288 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002289 * Changed the defined key-length of DES ciphers in cipher.h to include the
2290 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002291 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002292 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002293 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2294 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002295 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2296 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002297 * Changed the used random function pointer to more flexible format. Renamed
2298 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002299 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002300 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002301 * Added permissive certificate parsing to x509parse_crt() and
2302 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002303 encountering a parse-error. Beware that the meaning of return values has
2304 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002305 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002306
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002307Bugfix
2308 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2309 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002310 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2311 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002312 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2313 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002314 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2315 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002316 * If certificate serial is longer than 32 octets, serial number is now
2317 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002318 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002319 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002320 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002321 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002322
Paul Bakker968bc982011-07-27 17:03:00 +00002323= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002324Features
2325 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002326 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002327
Paul Bakker42e59812011-06-09 15:55:41 +00002328Changes
2329 * The generic cipher and message digest layer now have normal error
2330 codes instead of integers
2331
Paul Bakker887bd502011-06-08 13:10:54 +00002332Bugfix
2333 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2334 #18)
2335
Paul Bakker828acb22011-05-27 09:25:42 +00002336= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002337Features
2338 * Added additional Cipher Block Modes to symmetric ciphers
2339 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002340 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002341 * Functions requiring File System functions can now be disabled
2342 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002343 * A error_strerror function() has been added to translate between
2344 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002345 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2346 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002347 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002348
Paul Bakker23986e52011-04-24 08:57:21 +00002349Changes
2350 * Major argument / variable rewrite. Introduced use of size_t
2351 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002352 better unsigned / signed use. Renamed internal bigint types
2353 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002354 * mpi_init() and mpi_free() now only accept a single MPI
2355 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002356 * The error codes have been remapped and combining error codes
2357 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002358 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002359 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2360 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002361 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2362 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2363 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2364 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002365 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2366 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002367 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002368
Paul Bakker3efa5752011-04-01 12:23:26 +00002369= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002370Features
2371 * Added support for PKCS#1 v2.1 encoding and thus support
2372 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002373 * Reading of Public Key files incorporated into default x509
2374 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002375 * Added mpi_fill_random() for centralized filling of big numbers
2376 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002377
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002378Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002379 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002380 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002381 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002382 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002383 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002384
2385Bugfix
2386 * Debug output of MPI's now the same independent of underlying
2387 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002388 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002389 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2390 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002391 * Fixed proper handling of RSASSA-PSS verification with variable
2392 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002393
Paul Bakker345a6fe2011-02-28 21:20:02 +00002394= Version 0.99-pre3 released on 2011-02-28
2395This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002396Features
2397 * Parsing PEM private keys encrypted with DES and AES
2398 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002399 * Added crl_app program to allow easy reading and
2400 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00002401
2402Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002403 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00002404 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01002405 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00002406
Paul Bakker400ff6f2011-02-20 10:40:16 +00002407Bugfixes
2408 * Corrected parsing of UTCTime dates before 1990 and
2409 after 1950
2410 * Support more exotic OID's when parsing certificates
Darryl Green11999bb2018-03-13 15:22:58 +00002411 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002412 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002413 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002414 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002415 * Do not bail out if no client certificate specified. Try
2416 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01002417 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002418
Paul Bakker345a6fe2011-02-28 21:20:02 +00002419Security fixes
2420 * Fixed a possible Man-in-the-Middle attack on the
2421 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01002422 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00002423
Paul Bakker9fc46592011-01-30 16:59:02 +00002424= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00002425Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00002426Note: Most of these features have been donated by Fox-IT
2427 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00002428 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00002429 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00002430 certificate fields, including Key Usage
2431 * Improved certificate verification and verification
2432 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00002433 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00002434 * Improvements to support integration in other
2435 applications:
2436 + Added generic message digest and cipher wrapper
2437 + Improved information about current capabilities,
2438 status, objects and configuration
2439 + Added verification callback on certificate chain
2440 verification to allow external blacklisting
Darryl Green11999bb2018-03-13 15:22:58 +00002441 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00002442 * Added support for PKCS#11 through the use of the
2443 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00002444
Paul Bakkerb6194992011-01-16 21:40:22 +00002445Changes
2446 * x509parse_time_expired() checks time in addition to
2447 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00002448 * The ciphers member of ssl_context and the cipher member
2449 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01002450 ciphersuite respectively. This clarifies the difference
2451 with the generic cipher layer and is better naming
2452 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00002453
Paul Bakker99ed6782011-01-05 14:48:42 +00002454= Version 0.14.0 released on 2010-08-16
2455Features
2456 * Added support for SSL_EDH_RSA_AES_128_SHA and
2457 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
2458 * Added compile-time and run-time version information
2459 * Expanded ssl_client2 arguments for more flexibility
2460 * Added support for TLS v1.1
2461
2462Changes
2463 * Made Makefile cleaner
2464 * Removed dependency on rand() in rsa_pkcs1_encrypt().
2465 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01002466 changed the prototype of rsa_pkcs1_encrypt(),
2467 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00002468 * Some SSL defines were renamed in order to avoid
2469 future confusion
2470
2471Bug fixes
2472 * Fixed CMake out of source build for tests (found by
2473 kkert)
2474 * rsa_check_private() now supports PKCS1v2 keys as well
2475 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
2476 generator
2477
2478= Version 0.13.1 released on 2010-03-24
2479Bug fixes
2480 * Fixed Makefile in library that was mistakenly merged
2481 * Added missing const string fixes
2482
2483= Version 0.13.0 released on 2010-03-21
2484Features
2485 * Added option parsing for host and port selection to
2486 ssl_client2
2487 * Added support for GeneralizedTime in X509 parsing
2488 * Added cert_app program to allow easy reading and
2489 printing of X509 certificates from file or SSL
2490 connection.
2491
2492Changes
2493 * Added const correctness for main code base
2494 * X509 signature algorithm determination is now
2495 in a function to allow easy future expansion
2496 * Changed symmetric cipher functions to
2497 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01002498 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00002499 * Added reset function for HMAC context as speed-up
2500 for specific use-cases
2501
2502Bug fixes
2503 * Fixed bug resulting in failure to send the last
2504 certificate in the chain in ssl_write_certificate() and
2505 ssl_write_certificate_request() (found by fatbob)
2506 * Added small fixes for compiler warnings on a Mac
2507 (found by Frank de Brabander)
2508 * Fixed algorithmic bug in mpi_is_prime() (found by
2509 Smbat Tonoyan)
2510
2511= Version 0.12.1 released on 2009-10-04
2512Changes
2513 * Coverage test definitions now support 'depends_on'
2514 tagging system.
2515 * Tests requiring specific hashing algorithms now honor
2516 the defines.
2517
2518Bug fixes
2519 * Changed typo in #ifdef in x509parse.c (found
2520 by Eduardo)
2521
2522= Version 0.12.0 released on 2009-07-28
2523Features
2524 * Added CMake makefiles as alternative to regular Makefiles.
2525 * Added preliminary Code Coverage tests for AES, ARC4,
2526 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
2527 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
2528 and X509parse.
2529
2530Changes
2531 * Error codes are not (necessarily) negative. Keep
2532 this is mind when checking for errors.
2533 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
2534 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
2535 * Changed interface for AES and Camellia setkey functions
2536 to indicate invalid key lengths.
2537
2538Bug fixes
2539 * Fixed include location of endian.h on FreeBSD (found by
2540 Gabriel)
2541 * Fixed include location of endian.h and name clash on
2542 Apples (found by Martin van Hensbergen)
2543 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
2544 required HMAC ipad and opad variables are not cleared.
2545 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01002546 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00002547 POLARSSL_HAVE_LONGLONG not defined (found by Giles
2548 Bathgate).
2549 * Fixed incorrect handling of negative strings in
2550 mpi_read_string() (found by code coverage tests).
2551 * Fixed segfault on handling empty rsa_context in
2552 rsa_check_pubkey() and rsa_check_privkey() (found by
2553 code coverage tests).
2554 * Fixed incorrect handling of one single negative input
2555 value in mpi_add_abs() (found by code coverage tests).
2556 * Fixed incorrect handling of negative first input
2557 value in mpi_sub_abs() (found by code coverage tests).
2558 * Fixed incorrect handling of negative first input
2559 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
2560 change also affects mpi_write_string() (found by code
2561 coverage tests).
2562 * Corrected is_prime() results for 0, 1 and 2 (found by
2563 code coverage tests).
2564 * Fixed Camellia and XTEA for 64-bit Windows systems.
2565
2566= Version 0.11.1 released on 2009-05-17
2567 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
2568 SHA-512 in rsa_pkcs1_sign()
2569
2570= Version 0.11.0 released on 2009-05-03
2571 * Fixed a bug in mpi_gcd() so that it also works when both
2572 input numbers are even and added testcases to check
2573 (found by Pierre Habouzit).
2574 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
2575 one way hash functions with the PKCS#1 v1.5 signing and
2576 verification.
2577 * Fixed minor bug regarding mpi_gcd located within the
2578 POLARSSL_GENPRIME block.
2579 * Fixed minor memory leak in x509parse_crt() and added better
2580 handling of 'full' certificate chains (found by Mathias
2581 Olsson).
2582 * Centralized file opening and reading for x509 files into
2583 load_file()
2584 * Made definition of net_htons() endian-clean for big endian
2585 systems (Found by Gernot).
2586 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01002587 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00002588 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
2589 responsible for crashes and unwanted behaviour.
2590 * Added support for Certificate Revocation List (CRL) parsing.
2591 * Added support for CRL revocation to x509parse_verify() and
2592 SSL/TLS code.
2593 * Fixed compatibility of XTEA and Camellia on a 64-bit system
2594 (found by Felix von Leitner).
2595
2596= Version 0.10.0 released on 2009-01-12
2597 * Migrated XySSL to PolarSSL
2598 * Added XTEA symmetric cipher
2599 * Added Camellia symmetric cipher
2600 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
2601 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
2602 * Fixed dangerous bug that can cause a heap overflow in
2603 rsa_pkcs1_decrypt (found by Christophe Devine)
2604
2605================================================================
2606XySSL ChangeLog
2607
2608= Version 0.9 released on 2008-03-16
2609
2610 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
2611 * Enabled support for large files by default in aescrypt2.c
2612 * Preliminary openssl wrapper contributed by David Barrett
2613 * Fixed a bug in ssl_write() that caused the same payload to
2614 be sent twice in non-blocking mode when send returns EAGAIN
2615 * Fixed ssl_parse_client_hello(): session id and challenge must
2616 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
2617 * Added user-defined callback debug function (Krystian Kolodziej)
2618 * Before freeing a certificate, properly zero out all cert. data
2619 * Fixed the "mode" parameter so that encryption/decryption are
2620 not swapped on PadLock; also fixed compilation on older versions
2621 of gcc (bug reported by David Barrett)
2622 * Correctly handle the case in padlock_xcryptcbc() when input or
2623 ouput data is non-aligned by falling back to the software
2624 implementation, as VIA Nehemiah cannot handle non-aligned buffers
2625 * Fixed a memory leak in x509parse_crt() which was reported by Greg
2626 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
2627 Matthew Page who reported several bugs
2628 * Fixed x509_get_ext() to accept some rare certificates which have
2629 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
2630 * Added support on the client side for the TLS "hostname" extension
2631 (patch contributed by David Patino)
2632 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
2633 string is passed as the CN (bug reported by spoofy)
2634 * Added an option to enable/disable the BN assembly code
2635 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
2636 * Disabled obsolete hash functions by default (MD2, MD4); updated
2637 selftest and benchmark to not test ciphers that have been disabled
2638 * Updated x509parse_cert_info() to correctly display byte 0 of the
2639 serial number, setup correct server port in the ssl client example
2640 * Fixed a critical denial-of-service with X.509 cert. verification:
2641 peer may cause xyssl to loop indefinitely by sending a certificate
2642 for which the RSA signature check fails (bug reported by Benoit)
2643 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
2644 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
2645 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
2646 * Modified ssl_parse_client_key_exchange() to protect against
2647 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
2648 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
2649 * Updated rsa_gen_key() so that ctx->N is always nbits in size
2650 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
2651 David Barrett and Dusan Semen
2652
2653= Version 0.8 released on 2007-10-20
2654
2655 * Modified the HMAC functions to handle keys larger
2656 than 64 bytes, thanks to Stephane Desneux and gary ng
2657 * Fixed ssl_read_record() to properly update the handshake
2658 message digests, which fixes IE6/IE7 client authentication
2659 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
2660 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
2661 * Added user-defined callbacks for handling I/O and sessions
2662 * Added lots of debugging output in the SSL/TLS functions
2663 * Added preliminary X.509 cert. writing by Pascal Vizeli
2664 * Added preliminary support for the VIA PadLock routines
2665 * Added AES-CFB mode of operation, contributed by chmike
2666 * Added an SSL/TLS stress testing program (ssl_test.c)
2667 * Updated the RSA PKCS#1 code to allow choosing between
2668 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
2669 * Updated ssl_read() to skip 0-length records from OpenSSL
2670 * Fixed the make install target to comply with *BSD make
2671 * Fixed a bug in mpi_read_binary() on 64-bit platforms
2672 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
2673 * Fixed a long standing memory leak in mpi_is_prime()
2674 * Replaced realloc with malloc in mpi_grow(), and set
2675 the sign of zero as positive in mpi_init() (reported
2676 by Jonathan M. McCune)
2677
2678= Version 0.7 released on 2007-07-07
2679
2680 * Added support for the MicroBlaze soft-core processor
2681 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
2682 connections from being established with non-blocking I/O
2683 * Fixed a couple bugs in the VS6 and UNIX Makefiles
2684 * Fixed the "PIC register ebx clobbered in asm" bug
2685 * Added HMAC starts/update/finish support functions
2686 * Added the SHA-224, SHA-384 and SHA-512 hash functions
2687 * Fixed the net_set_*block routines, thanks to Andreas
2688 * Added a few demonstration programs: md5sum, sha1sum,
2689 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
2690 * Added new bignum import and export helper functions
2691 * Rewrote README.txt in program/ssl/ca to better explain
2692 how to create a test PKI
2693
2694= Version 0.6 released on 2007-04-01
2695
2696 * Ciphers used in SSL/TLS can now be disabled at compile
2697 time, to reduce the memory footprint on embedded systems
2698 * Added multiply assembly code for the TriCore and modified
2699 havege_struct for this processor, thanks to David Patiño
2700 * Added multiply assembly code for 64-bit PowerPCs,
2701 thanks to Peking University and the OSU Open Source Lab
2702 * Added experimental support of Quantum Cryptography
2703 * Added support for autoconf, contributed by Arnaud Cornet
2704 * Fixed "long long" compilation issues on IA-64 and PPC64
2705 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
2706 was not being correctly defined on ARM and MIPS
2707
2708= Version 0.5 released on 2007-03-01
2709
2710 * Added multiply assembly code for SPARC and Alpha
2711 * Added (beta) support for non-blocking I/O operations
2712 * Implemented session resuming and client authentication
2713 * Fixed some portability issues on WinCE, MINIX 3, Plan9
2714 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
2715 * Improved the performance of the EDH key exchange
2716 * Fixed a bug that caused valid packets with a payload
2717 size of 16384 bytes to be rejected
2718
2719= Version 0.4 released on 2007-02-01
2720
2721 * Added support for Ephemeral Diffie-Hellman key exchange
2722 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
2723 * Various improvement to the modular exponentiation code
2724 * Rewrote the headers to generate the API docs with doxygen
2725 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
2726 generated) and in ssl_parse_client_hello (max. client
2727 version was not properly set), thanks to Didier Rebeix
2728 * Fixed another bug in ssl_parse_client_hello: clients with
2729 cipherlists larger than 96 bytes were incorrectly rejected
2730 * Fixed a couple memory leak in x509_read.c
2731
2732= Version 0.3 released on 2007-01-01
2733
2734 * Added server-side SSLv3 and TLSv1.0 support
2735 * Multiple fixes to enhance the compatibility with g++,
2736 thanks to Xosé Antón Otero Ferreira
2737 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01002738 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00002739 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
2740 * Updated timing.c for improved compatibility with i386
2741 and 486 processors, thanks to Arnaud Cornet
2742
2743= Version 0.2 released on 2006-12-01
2744
2745 * Updated timing.c to support ARM and MIPS arch
2746 * Updated the MPI code to support 8086 on MSVC 1.5
2747 * Added the copyright notice at the top of havege.h
2748 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
2749 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
2750 * Fixed a bug reported by Torsten Lauter in ssl_read_record
2751 * Fixed a bug in rsa_check_privkey that would wrongly cause
2752 valid RSA keys to be dismissed (thanks to oldwolf)
2753 * Fixed a bug in mpi_is_prime that caused some primes to fail
2754 the Miller-Rabin primality test
2755
2756 I'd also like to thank Younès Hafri for the CRUX linux port,
2757 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
2758 who maintains the Debian package :-)
2759
2760= Version 0.1 released on 2006-11-01