blob: 49400160bedcecc48c5b4db392c48121888c95ba [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
Andres AGee7157e2016-12-07 10:25:19 +00003= mbed TLS x.x.x branch released xxxx-xx-xx
4
Simon Butcherf15cfd52018-06-27 11:05:44 +01005Bugfix
6 * Change the shebang line in Perl scripts to look up perl in the PATH.
7 Contributed by fbrosson in #1533.
Simon Butcher9a08e442018-06-22 12:02:59 +01008 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
Simon Butcher41c23b52018-06-28 12:13:57 +01009 Philippe Antoine. Fixes #1623.
Andres Amaya Garcia294331a2017-07-11 14:39:30 +010010 * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
11 return value. Found by @davidwu2000. #839
Simon Butchera67b20c2018-06-28 11:59:51 +010012 * Fix the key_app_writer example which was writing a leading zero byte which
13 was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
Simon Butcherf15cfd52018-06-27 11:05:44 +010014
Simon Butcher662ae9e2018-06-18 14:42:14 +010015= mbed TLS 2.7.4 branch released 2018-06-18
Moran Peker9259b3b2018-02-25 13:29:03 +020016
17Bugfix
18 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
19 TrinityTonic. #1359.
Simon Butcher4e5edf32018-06-08 16:23:17 +010020 * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
21 used by user applications. Found and fixed by Fabio Alessandrelli.
Darryl Green68207f82017-11-27 17:12:14 +000022 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
Simon Butcherd8ea8d42018-06-01 19:11:55 +010023 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
24 build to fail. Found by zv-io. Fixes #1651.
Simon Butcher49de6b82018-06-14 08:58:59 +010025 * Fix compilation warnings with IAR toolchain, on 32 bit platform.
26 Reported by rahmanih in #683
Moran Peker9259b3b2018-02-25 13:29:03 +020027
Gilles Peskineb2f09c32018-03-21 12:38:00 +010028Changes
29 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Simon Butchera96b9d42018-06-12 17:42:02 +010030 * Changed CMake defaults for IAR to treat all compiler warnings as errors.
Simon Butcher02582b22018-06-18 11:56:13 +010031 * Changed the Clang parameters used in the CMake build files to work for
32 versions later than 3.6. Versions of Clang earlier than this may no longer
33 work. Fixes #1072
Gilles Peskineb2f09c32018-03-21 12:38:00 +010034
Jaeden Amero1fc4d332018-04-27 13:15:45 +010035= mbed TLS 2.7.3 branch released 2018-04-30
Andres AGee7157e2016-12-07 10:25:19 +000036
Hanno Becker9a37e0f2017-09-25 10:51:32 +010037Security
Simon Butcher88cc9412018-04-30 17:23:00 +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 Kurekef30d962018-04-25 05:29:00 -040051 * Fix a client-side bug in the validation of the server's ciphersuite choice
Simon Butcher88cc9412018-04-30 17:23:00 +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.
Hanno Becker9a37e0f2017-09-25 10:51:32 +010056
Andres AGee7157e2016-12-07 10:25:19 +000057Bugfix
Simon Butcher88cc9412018-04-30 17:23:00 +010058 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
Gilles Peskine8980da52018-03-22 21:49:43 +010059 contributed by Brian J Murray and David Brown.
Gilles Peskined4dc1a02018-03-23 01:42:44 +010060 * Add missing dependencies in test suites that led to build failures
61 in configurations that omit certain hashes or public-key algorithms.
62 Fixes #1040.
Jaeden Amero5f97be62018-03-26 18:32:14 +010063 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
64 #1353
Gilles Peskine1dc8e812018-03-27 23:08:53 +020065 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
Simon Butcher88cc9412018-04-30 17:23:00 +010066 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
67 Deomid Ryabkov. Fixes #1299, #1475.
68 * Fix the Makefile build process for building shared libraries on Mac OS X.
69 Fixed by mnacamura.
Jethro Beekman004e3712018-02-16 13:11:04 -080070 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcher88cc9412018-04-30 17:23:00 +010071 unable to parse keys which had only the optional parameters field of the
72 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
73 * Return the plaintext data more quickly on unpadded CBC decryption, as
74 stated in the mbedtls_cipher_update() documentation. Contributed by
75 Andy Leiserson.
Andrzej Kurekd9594922018-03-26 04:13:24 -040076 * Fix overriding and ignoring return values when parsing and writing to
77 a file in pk_sign program. Found by kevlut in #1142.
Krzysztof Stachowiak7da50882018-04-04 13:47:40 +020078 * Fix buffer length assertions in the ssl_parse_certificate_request()
79 function which leads to a potential one byte overread of the message
80 buffer.
Andrzej Kurekc3a3e2d2018-04-23 08:39:13 -040081 * Fix invalid buffer sizes passed to zlib during record compression and
82 decompression.
Gilles Peskine8980da52018-03-22 21:49:43 +010083
Gilles Peskine9b9cc612018-03-22 17:03:45 +010084Changes
Simon Butcher88cc9412018-04-30 17:23:00 +010085 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
86 independently by Matthieu Volat and Arne Schwabe.
Gilles Peskined4dc1a02018-03-23 01:42:44 +010087 * Improve testing in configurations that omit certain hashes or
88 public-key algorithms. Includes contributions by Gert van Dijk.
89 * Improve negative testing of X.509 parsing.
Jaeden Ameroef59b732018-03-28 14:21:19 +010090 * Do not define global mutexes around readdir() and gmtime() in
91 configurations where the feature is disabled. Found and fixed by Gergely
92 Budai.
Andres Amaya Garcia3b4d5c22018-03-27 21:19:50 +010093 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
94 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
95 without PBES2. Fixed by Marcos Del Sol Vives.
Jaeden Amero0c692cd2018-03-29 11:02:52 +010096 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
97 Krylov.
Darryl Green28448b22018-03-29 16:05:44 +010098 * Improve the documentation of mbedtls_ssl_write(). Suggested by
99 Paul Sokolovsky in #1356.
Simon Butcher88cc9412018-04-30 17:23:00 +0100100 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garcia8ee21562018-03-27 19:14:24 +0100101 letter must not be prefixed by '-', such as LLVM. Found and fixed by
102 Alex Hixon.
Andres Amaya Garcia89320a42018-03-25 23:57:09 +0100103 * Allow configuring the shared library extension by setting the DLEXT
Andres Amaya Garcia8ee21562018-03-27 19:14:24 +0100104 environment variable when using the project makefiles.
Gilles Peskine1852d662018-04-04 10:19:24 +0200105 * In the SSL module, when f_send, f_recv or f_recv_timeout report
106 transmitting more than the required length, return an error. Raised by
Jaeden Amerob5f53b12018-04-03 12:09:45 +0100107 Sam O'Connor in #1245.
Jaeden Amerod8e0cec2018-04-03 18:27:54 +0100108 * Improve robustness of mbedtls_ssl_derive_keys against the use of
109 HMAC functions with non-HMAC ciphersuites. Independently contributed
110 by Jiayuan Chen in #1377. Fixes #1437.
Gilles Peskine9b9cc612018-03-22 17:03:45 +0100111
Jaeden Amero9ae1fba2018-03-16 16:30:17 +0000112= mbed TLS 2.7.2 branch released 2018-03-16
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200113
Gilles Peskine955d7042018-03-13 17:24:33 +0100114Security
115 * Verify results of RSA private key operations to defend
116 against Bellcore glitch attack.
Jaeden Amero8a032e62018-03-14 18:01:54 +0000117 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
118 a crash on invalid input.
119 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
120 crash on invalid input.
Manuel Pégourié-Gonnard5a9f46e2018-03-13 11:53:30 +0100121 * Fix CRL parsing to reject CRLs containing unsupported critical
122 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Gilles Peskine955d7042018-03-13 17:24:33 +0100123
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800124Features
125 * Extend PKCS#8 interface by introducing support for the entire SHA
126 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine60130042018-02-14 11:33:30 +0100127 This allows reading encrypted PEM files produced by software that
128 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
129 OpenVPN Inc. Fixes #1339
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800130
Gilles Peskine158fc332018-03-11 00:47:54 +0100131Bugfix
132 * Fix setting version TLSv1 as minimal version, even if TLS 1
133 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
134 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
135 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +0300136 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
137 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +0300138 Nick Wilson on issue #355
Gilles Peskine8eda5ec2018-03-11 00:21:32 +0100139 * In test_suite_pk, pass valid parameters when testing for hash length
140 overflow. #1179
Gilles Peskinec5671bd2018-03-12 23:44:56 +0100141 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
142 by Guido Vranken. #639
Jaeden Ameroc9908f02018-03-15 14:58:24 +0000143 * Log correct number of ciphersuites used in Client Hello message. #918
Andres Amaya Garcia32ec6d42017-08-25 17:17:34 +0100144 * Fix X509 CRT parsing that would potentially accept an invalid tag when
145 parsing the subject alternative names.
Jaeden Amero100273d2018-03-14 17:58:00 +0000146 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
147 that could cause a key exchange to fail on valid data.
148 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
149 could cause a key exchange to fail on valid data.
Jaeden Amero32ae73b2018-03-14 17:59:59 +0000150 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
151 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +0100152 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
153 Found through fuzz testing.
Gilles Peskine158fc332018-03-11 00:47:54 +0100154
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200155Changes
156 * Clarify the documentation of mbedtls_ssl_setup.
157
Jaeden Amero6a4e22c2018-02-23 11:31:04 +0000158= mbed TLS 2.7.1 branch released 2018-02-23
Gilles Peskine27b07542018-02-14 14:07:48 +0100159
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100160Default behavior changes
161 * The truncated HMAC extension now conforms to RFC 6066. This means
162 that when both sides of a TLS connection negotiate the truncated
163 HMAC extension, Mbed TLS can now interoperate with other
164 compliant implementations, but this breaks interoperability with
165 prior versions of Mbed TLS. To restore the old behavior, enable
166 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
167 config.h. Found by Andreas Walz (ivESK, Offenburg University of
168 Applied Sciences).
169
Hanno Becker7dc832b2017-11-16 17:39:34 +0000170Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100171 * Fix implementation of the truncated HMAC extension. The previous
172 implementation allowed an offline 2^80 brute force attack on the
173 HMAC key of a single, uninterrupted connection (with no
174 resumption of the session).
Hanno Becker7dc832b2017-11-16 17:39:34 +0000175
Gilles Peskine27b07542018-02-14 14:07:48 +0100176Bugfix
177 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
178 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +0100179 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +0200180 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
181 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskinef936cb12018-02-27 08:37:52 +0100182 In the context of SSL, this resulted in handshake failure. Reported by
183 daniel in the Mbed TLS forum. #1351
Jaeden Ameroa0d60a42018-02-21 13:32:39 +0000184 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskine27b07542018-02-14 14:07:48 +0100185
186Changes
187 * Fix tag lengths and value ranges in the documentation of CCM encryption.
188 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +0100189 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskine49451922018-02-21 17:59:40 +0100190 * MD functions deprecated in 2.7.0 are no longer inline, to provide
191 a migration path for those depending on the library's ABI.
Gilles Peskine27b07542018-02-14 14:07:48 +0100192
Simon Butcher55fc4e02018-02-05 01:09:13 +0000193= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100194
Gilles Peskine28a0c722017-10-17 19:01:38 +0200195Security
Simon Butcher55fc4e02018-02-05 01:09:13 +0000196 * Fix a heap corruption issue in the implementation of the truncated HMAC
197 extension. When the truncated HMAC extension is enabled and CBC is used,
198 sending a malicious application packet could be used to selectively corrupt
199 6 bytes on the peer's heap, which could potentially lead to crash or remote
200 code execution. The issue could be triggered remotely from either side in
201 both TLS and DTLS. CVE-2018-0488
202 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
203 for the key size, which could potentially lead to crash or remote code
204 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
205 Qualcomm Technologies Inc. CVE-2018-0487
206 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
207 zeros.
208 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
209 64 KiB to the address of the SSL buffer and causing a wrap around.
210 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +0100211 default enabled) maximum fragment length extension is disabled in the
212 config and the application data buffer passed to mbedtls_ssl_write
213 is larger than the internal message buffer (16384 bytes by default), the
214 latter overflows. The exploitability of this issue depends on whether the
215 application layer can be forced into sending such large packets. The issue
216 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +0000217 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
218 Fixes #707.
219 * Add a provision to prevent compiler optimizations breaking the time
220 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +0100221 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +0100222 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +0300223 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
224 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +0100225 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
226 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000227 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
228 data. Previously, trailing zero bytes were detected and omitted for the
229 sake of saving memory, but potentially leading to slight timing
230 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +0100231 * Wipe stack buffer temporarily holding EC private exponent
232 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000233 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +0100234 (server-side). Could result in application crash, but only if an ALPN
235 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100236 * Change default choice of DHE parameters from untrustworthy RFC 5114
237 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
238 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +0200239
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200240Features
241 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +0100242 * The selftest program can execute a subset of the tests based on command
243 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +0200244 * New unit tests for timing. Improve the self-test to be more robust
245 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +0100246 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +0000247 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +0100248 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +0100249 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +0300250 * Add support for alternative implementations for ECDSA, controlled by new
251 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
252 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +0300253 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +0300254 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +0300255 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000256 * Add support for alternative implementation of ECDH, controlled by the
257 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +0300258 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +0300259 The following functions from the ECDH module can be replaced
260 with an alternative implementation:
261 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000262 * Add support for alternative implementation of ECJPAKE, controlled by
263 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000264 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +0200265
Hanno Beckera47023e2017-12-22 17:08:03 +0000266API Changes
267 * Extend RSA interface by multiple functions allowing structure-
268 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +0000269 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +0000270 up RSA contexts from partial key material and having them completed to the
271 needs of the implementation automatically. This allows to setup private RSA
272 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
273 purpose or CRT and/or blinding.
274 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
275 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100276 * The following functions in the message digest modules (MD2, MD4, MD5,
277 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
278 The new functions change the return type from void to int to allow
279 returning error codes when using MBEDTLS_<MODULE>_ALT.
280 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
281 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
282 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100283 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200284
Ron Eldor73a38172017-10-03 15:58:26 +0300285New deprecations
286 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000287 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100288 * Direct manipulation of structure fields of RSA contexts is deprecated.
289 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000290 * Deprecate usage of message digest functions that return void
291 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
292 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
293 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
294 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100295 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
296 parameters from RFC 3526 or the newly added parameters from RFC 7919.
297 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
298 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
299 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000300 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
301 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100302 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100303
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100304Bugfix
305 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
306 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100307 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
308 Found by projectgus and jethrogb, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100309 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300310 * Parse signature algorithm extension when renegotiating. Previously,
311 renegotiated handshakes would only accept signatures using SHA-1
312 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000313 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
314 dates on leap years with 100 and 400 intervals are handled correctly. Found
315 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200316 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
317 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100318 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
319 Found independently by Florian in the mbed TLS forum and by Mishamax.
320 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100321 * Fix variable used before assignment compilation warnings with IAR
322 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000323 * Fix unchecked return codes from AES, DES and 3DES functions in
324 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
325 If a call to one of the functions of the cryptographic primitive modules
326 failed, the error may not be noticed by the function
327 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
328 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100329 * Include configuration file in md.h, to fix compilation warnings.
330 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100331 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
332 writing routines that prevented these functions to work with alternative
333 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100334 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
335 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100336 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000337 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100338 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000339 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100340 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000341 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000342 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100343 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100344 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100345 * Add size-checks for record and handshake message content, securing
346 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300347 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
348 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +0100349 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000350 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100351 * Fix possible memory leaks in mbedtls_gcm_self_test().
352 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +0000353 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
354 RSA test suite where the failure of CTR DRBG initialization lead to
355 freeing an RSA context and several MPI's without proper initialization
356 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +0100357 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +0100358 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
359 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000360 * Fix an issue in the cipher decryption with the mode
361 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
362 Note, this padding mode is not used by the TLS protocol. Found and fixed by
363 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +0100364 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
365 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
366 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
367 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +0100368 structure. Do not assume that zeroizing a context is a correct way to
369 reset it. Found independently by ccli8 on Github.
370 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000371 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
372 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +0100373
374Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +0000375 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +0100376 and the message digest. Further, allow enabling/disabling of authority
377 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +0000378 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
379 particular, don't require P,Q if neither CRT nor blinding are
380 used. Reported and fix proposed independently by satur9nine and sliai
381 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100382 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +0100383 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
384 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +0100385 * Update all internal usage of deprecated message digest functions to the
386 new ones with return codes. In particular, this modifies the
387 mbedtls_md_info_t structure. Propagate errors from these functions
388 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +0000389 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +0100390 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
391 modules where the software implementation can be replaced by a hardware
392 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +0100393 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
394 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100395
Simon Butcher72ea31b2017-08-10 11:51:16 +0100396= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +0200397
Simon Butcherb060cc22017-07-28 01:04:34 +0100398Security
Simon Butcher01971d02017-08-10 10:48:01 +0100399 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherb060cc22017-07-28 01:04:34 +0100400 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
401 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +0100402 (default: 8) intermediates, even when it was not trusted. This could be
403 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +0100404 (the default), the handshake was correctly aborted).
405 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +0100406 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
407 Found by Laurent Simon.
Simon Butcherb060cc22017-07-28 01:04:34 +0100408
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100409Features
410 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia052ac862017-07-12 11:27:05 +0100411 and the context struct mbedtls_platform_context to perform
412 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia586d3772017-07-18 10:24:26 +0100413 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +0100414 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +0100415 some embedded environments to provide a means of initialising underlying
416 cryptographic acceleration hardware.
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100417
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200418API Changes
419 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
420 API consistent with mbed TLS 2.5.0. Specifically removed the inline
421 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +0100422 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
423 by James Cowgill. #978
Simon Butcherb060cc22017-07-28 01:04:34 +0100424 * Certificate verification functions now set flags to -1 in case the full
425 chain was not verified due to an internal error (including in the verify
426 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +0100427 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherb060cc22017-07-28 01:04:34 +0100428 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +0100429 a fatal error in the verify callback.
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200430
Ron Eldor5a21fd62016-12-16 16:15:56 +0200431Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +0100432 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
433 Reported by roberto. #716
434 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor8ab05952017-01-09 19:27:59 +0200435 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +0100436 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +0100437 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
438 in the case of an error. Found by redplait. #590
Ron Eldor7269fee2017-01-12 14:50:50 +0200439 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100440 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciaaa27dfe2017-05-04 11:05:55 +0100441 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
442 compilation when using ARM Compiler 6.
Simon Butcher00d3cc62017-07-26 17:25:55 +0100443 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100444 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher00d3cc62017-07-26 17:25:55 +0100445 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
446 KNOX Security, Samsung Research America
Andres AG2e3ddfa2017-02-17 13:54:43 +0000447 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100448 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e3ddfa2017-02-17 13:54:43 +0000449 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
450 KNOX Security, Samsung Research America
Simon Butcher00d3cc62017-07-26 17:25:55 +0100451 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100452 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher00d3cc62017-07-26 17:25:55 +0100453 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +0100454 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +0100455 function mbedtls_time() instead. Found by wairua. #666
456 * Avoid shadowing of time and index functions through mbed TLS function
457 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +0200458
Janos Follathbfea4a72017-06-22 10:02:07 +0100459Changes
Janos Follath32529402017-06-22 10:02:07 +0100460 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +0100461 64-bit division. This is useful on embedded platforms where 64-bit division
462 created a dependency on external libraries. #708
Janos Follathbfea4a72017-06-22 10:02:07 +0100463 * Removed mutexes from ECP hardware accelerator code. Now all hardware
464 accelerator code in the library leaves concurrency handling to the
465 platform. Reported by Steven Cooreman. #863
Andres Amaya Garcia92fcfe22017-06-26 12:57:44 +0100466 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
467 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100468 * Added a test script that can be hooked into git that verifies commits
469 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +0100470 * Improve documentation of PKCS1 decryption functions.
Janos Follathbfea4a72017-06-22 10:02:07 +0100471
Simon Butcherf2a597f2017-06-20 23:08:10 +0100472= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +0100473
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200474Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +0100475 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
476 The issue could only happen client-side with renegotiation enabled.
477 Could result in DoS (application crash) or information leak
478 (if the application layer sent data read from mbedtls_ssl_read()
479 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +0200480 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
481 certificate verification. SHA-1 can be turned back on with a compile-time
482 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +0200483 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
484 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +0200485 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
486 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200487
Hanno Beckereccf60c2017-06-05 15:19:01 +0100488Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +0100489 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
490 valid C and they prevented the test from compiling in Visual Studio 2015
491 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +0100492 * Fix insufficient support for signature-hash-algorithm extension,
493 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +0100494 * Fix behaviour that hid the original cause of fatal alerts in some cases
495 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +0200496 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100497 * Fix SSLv3 renegotiation behaviour and stop processing data received from
498 peer after sending a fatal alert to refuse a renegotiation attempt.
499 Previous behaviour was to keep processing data even after the alert has
500 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +0100501 * Accept empty trusted CA chain in authentication mode
502 MBEDTLS_SSL_VERIFY_OPTIONAL.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100503 Found by jethrogb. #864
504 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
505 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
506 reflect bad EC curves within verification result.
507 * Fix bug that caused the modular inversion function to accept the invalid
508 modulus 1 and therefore to hang. Found by blaufish. #641.
509 * Fix incorrect sign computation in modular exponentiation when the base is
510 a negative MPI. Previously the result was always negative. Found by Guido
511 Vranken.
512 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
513 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +0200514
Gilles Peskine36091fe2017-05-03 16:55:03 +0200515Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +0100516 * Send fatal alerts in more cases. The previous behaviour was to skip
517 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +0000518 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +0100519 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +0000520 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +0200521
Simon Butcher9f770172017-05-15 15:13:59 +0100522= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100523
Janos Follath45182a02017-03-23 10:41:56 +0000524Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +0100525 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +0100526 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
527 Simon.
Janos Follath45182a02017-03-23 10:41:56 +0000528 * Add exponent blinding to RSA private operations as a countermeasure
529 against side-channel attacks like the cache attack described in
530 https://arxiv.org/abs/1702.08719v2.
531 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
532 Clémentine Maurice and Stefan Mangard.
533
Simon Butcher4775e832017-05-13 22:56:08 +0100534Features
Janos Follath5a1c0e72017-06-16 09:00:07 +0100535 * Add hardware acceleration support for the Elliptic Curve Point module.
536 This involved exposing parts of the internal interface to enable
537 replacing the core functions and adding and alternative, module level
538 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +0100539 * Add a new configuration option to 'mbedtls_ssl_config' to enable
540 suppressing the CA list in Certificate Request messages. The default
541 behaviour has not changed, namely every configured CAs name is included.
542
Andres AGf5bf7182017-03-03 14:09:56 +0000543API Changes
544 * The following functions in the AES module have been deprecated and replaced
545 by the functions shown below. The new functions change the return type from
546 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
547 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
548 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
549 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
550
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100551Bugfix
552 * Remove macros from compat-1.3.h that correspond to deleted items from most
553 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100554 * Fixed issue in the Threading module that prevented mutexes from
555 initialising. Found by sznaider. #667 #843
556 * Add checks in the PK module for the RSA functions on 64-bit systems.
557 The PK and RSA modules use different types for passing hash length and
558 without these checks the type cast could lead to data loss. Found by Guido
559 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100560
Simon Butcherb65c2be2017-03-10 18:50:44 +0000561= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +0100562
Janos Follath182013f2016-10-25 10:50:22 +0100563Security
Simon Butcherb65c2be2017-03-10 18:50:44 +0000564 * Add checks to prevent signature forgeries for very large messages while
565 using RSA through the PK module in 64-bit systems. The issue was caused by
566 some data loss when casting a size_t to an unsigned int value in the
567 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
568 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +0000569 * Fixed potential livelock during the parsing of a CRL in PEM format in
570 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
571 characters after the footer could result in the execution of an infinite
572 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
573 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +0100574 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
575 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +0000576 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +0000577 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
578 when verifying the validity of a key on secp224k1. This could be
579 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +0000580 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +0000581 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
582 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +0000583
Andres AG703990b2016-10-24 11:23:36 +0100584Bugfix
Andres AGd1650662016-12-09 17:26:23 +0000585 * Fix output certificate verification flags set by x509_crt_verify_top() when
586 traversing a chain of trusted CA. The issue would cause both flags,
587 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
588 set when the verification conditions are not met regardless of the cause.
589 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +0000590 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
591 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
592 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +0000593 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
594 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +0000595 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +0000596 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
597 would compare 64 bits of the record counter instead of 48 bits as indicated
598 in RFC 6347 Section 4.3.1. This could cause the execution of the
599 renegotiation routines at unexpected times when the protocol is DTLS. Found
600 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +0100601 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +0100602 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +0100603 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +0000604 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
605 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
606 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
607 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
608 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
609 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +0000610 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
611 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +0000612 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
613 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +0000614 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
615 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +0000616 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
617 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +0000618 * Fixed the templates used to generate project and solution files for Visual
619 Studio 2015 as well as the files themselves, to remove a build warning
620 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +0200621 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
622 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +0000623 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
624 number to write in hexadecimal is negative and requires an odd number of
625 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +0000626 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
627 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +0100628
Janos Follath4c006cd2016-12-13 14:14:03 +0000629= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +0000630
631Changes
632 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
633 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
634 Authentication – October 2016
635
Simon Butcher19dbd412016-10-16 19:35:49 +0100636= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +0300637
Andres AG60dbc932016-09-02 15:23:48 +0100638Security
Simon Butcheref8fa012016-10-16 00:44:08 +0100639 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
640 with RFC-5116 and could lead to session key recovery in very long TLS
641 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
642 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
643 https://eprint.iacr.org/2016/475.pdf
644 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +0100645 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +0100646 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +0100647 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +0100648
Simon Butchercf8c1f42016-09-02 21:29:39 +0300649Features
Simon Butcher21c54812016-10-05 14:17:37 +0100650 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
651 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300652 * Added hardware entropy selftest to verify that the hardware entropy source
653 is functioning correctly.
654 * Added a script to print build environment info for diagnostic use in test
655 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +0100656 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
657 configure the maximum length of a file path that can be buffered when
658 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +0100659 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +0100660 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +0100661 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
662 to configure the minimum number of bytes for entropy sources using the
663 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300664
665Bugfix
666 * Fix for platform time abstraction to avoid dependency issues where a build
667 may need time but not the standard C library abstraction, and added
668 configuration consistency checks to check_config.h
669 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +0100670 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
671 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +0300672 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
673 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +0300674 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
675 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +0100676 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +0100677 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +0100678 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +0100679 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +0100680 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +0100681 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +0100682 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
683 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
684 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +0100685 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
686 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +0100687 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +0100688 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +0100689 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +0100690 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +0100691 * Fix potential byte overread when verifying malformed SERVER_HELLO in
692 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +0100693 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +0100694 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +0100695 * Fix compatibility issue with Internet Explorer client authentication,
696 where the limited hash choices prevented the client from sending its
697 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +0100698 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300699
700Changes
701 * Extended test coverage of special cases, and added new timing test suite.
702 * Removed self-tests from the basic-built-test.sh script, and added all
703 missing self-tests to the test suites, to ensure self-tests are only
704 executed once.
705 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
706 * Added support for a Yotta specific configuration file -
707 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +0100708 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +0100709 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +0100710 * Renamed source file library/net.c to library/net_sockets.c to avoid
711 naming collision in projects which also have files with the common name
712 net.c. For consistency, the corresponding header file, net.h, is marked as
713 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +0100714 * Changed the strategy for X.509 certificate parsing and validation, to no
715 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300716
Simon Butcher46125fb2016-06-27 19:43:55 +0100717= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100718
Janos Follathcc4eba72016-02-10 16:25:55 +0000719Security
Janos Follathe43b81a2016-02-10 16:25:55 +0000720 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +0000721 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +0000722 * Fix potential integer overflow to buffer overflow in
723 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +0100724 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +0100725 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +0000726 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
727 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +0000728
Simon Butcher3fe6cd32016-04-26 19:51:29 +0100729Features
730 * Support for platform abstraction of the standard C library time()
731 function.
732
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100733Bugfix
734 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
735 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100736 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +0000737 * Fix potential build failures related to the 'apidoc' target, introduced
738 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100739 * Fix issue in Makefile that prevented building using armar. #386
Janos Follath4ae5c292016-02-10 11:27:43 +0000740 * Fix memory leak that occured only when ECJPAKE was enabled and ECDHE and
741 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +0000742 * Fix an issue that caused valid certificates to be rejected whenever an
743 expired or not yet valid certificate was parsed before a valid certificate
744 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +0100745 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +0000746 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +0100747 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +0000748 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
749 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +0100750 * Fix issue that caused a crash if invalid curves were passed to
751 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +0100752 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +0100753 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +0100754 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +0100755 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100756
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +0100757Changes
758 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
759 don't use the optimized assembly for bignum multiplication. This removes
760 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +0100761 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +0100762 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
763 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +0100764 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
765 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +0100766
767= mbed TLS 2.2.1 released 2016-01-05
768
769Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +0100770 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +0100771 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +0000772 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +0100773 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
774 SLOTH attack on TLS 1.2 server authentication (other attacks from the
775 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +0100776 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +0000777
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +0100778Bugfix
779 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
780 * Fix bug in certificate validation that caused valid chains to be rejected
781 when the first intermediate certificate has pathLenConstraint=0. Found by
782 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +0000783 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +0000784 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +0100785 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100786 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +0200787 datagram if a single record in a datagram is unexpected, instead only
788 drop the record and look at subsequent records (if any are present) in
789 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +0200790
791= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +0000792
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +0200793Security
794 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
795 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +0000796 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100797 * Fix potential heap corruption on Windows when
798 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
799 triggered remotely. Found by Guido Vranken, Intelworks.
800 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +0200801 Cannot be triggered remotely unless you create X.509 certificates based
802 on untrusted input or write keys of untrusted origin. Found by Guido
803 Vranken, Intelworks.
804 * The X509 max_pathlen constraint was not enforced on intermediate
805 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +0200806 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100807
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100808Features
809 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
810 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100811 * Added a key extraction callback to accees the master secret and key
812 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +0200813
814Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +0000815 * Self-signed certificates were not excluded from pathlen counting,
816 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +0200817 provided by Janos Follath. #319
818 * Fix build error with configurations where ECDHE-PSK is the only key
819 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +0000820 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +0200821 ECHD-ECDSA if the only key exchange. Multiple reports. #310
822 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +0200823 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +0900824 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
825 size/curve against the profile. Before that, there was no way to set a
826 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +0000827 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +0100828 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
829 Found by Kurt Danielson. #292
830 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100831 * Fix bug in ASN.1 encoding of booleans that caused generated CA
832 certificates to be rejected by some applications, including OS X
833 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +0100834
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +0100835Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +0100836 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
837 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +0100838
839= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +0100840
841Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +0200842 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
843 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +0100844 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +0200845 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +0100846 once in the same handhake and mbedtls_ssl_conf_psk() was used.
847 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
848 remotely.
849 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +0100850 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +0100851 Found by Guido Vranken, Intelworks. Not triggerable remotely.
852 * Fix potential buffer overflow in mbedtls_mpi_read_string().
853 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
854 of TLS, but might be in other uses. On 32 bit machines, requires reading a
855 string of close to or larger than 1GB to exploit; on 64 bit machines, would
856 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +0200857 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +0100858 on crafted PEM input data. Found and fix provided by Guido Vranken,
859 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +0200860 accept PEM data from an untrusted source.
861 * Fix possible heap buffer overflow in base64_encoded() when the input
862 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +0100863 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +0100864 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +0100865 the same mbedtls_ssl_config object and memory allocation fails. Found by
866 Guido Vranken, Intelworks. Cannot be forced remotely.
867 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +0100868 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +0100869 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +0100870 Found by Guido Vranken, Intelworks.
871
872Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +0100873 * Fix compile error in net.c with musl libc. Found and patch provided by
874 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +0100875 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +0100876
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +0200877Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +0200878 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
879 domain names are compliant with RFC 1035.
880 * Fixed paths for check_config.h in example config files. (Found by bachp)
881 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200882
883= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +0100884
885Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200886 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +0100887 signatures. (Found by Florian Weimer, Red Hat.)
888 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +0200889 * Fix possible client-side NULL pointer dereference (read) when the client
890 tries to continue the handshake after it failed (a misuse of the API).
891 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +0100892 afl-fuzz.)
893
894Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +0200895 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
896 * Fix off-by-one error in parsing Supported Point Format extension that
897 caused some handshakes to fail.
898
899Changes
900 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
901 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +0100902 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200903 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +0200904 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200905 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +0200906 detected and mbedtls_ssl_read() will return
907 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200908 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +0200909
910= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +0200911
912Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +0200913 * Added support for yotta as a build system.
914 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200915
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +0200916Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200917 * Fix segfault in the benchmark program when benchmarking DHM.
918 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +0200919 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +0200920 * Fix bug when parsing a ServerHello without extensions (found by David
921 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +0200922 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
923 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +0200924 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
925 installed (found by Rawi666).
926 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +0200927 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +0200928 (found by robotanarchy) (#232).
929 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +0200930 tests (found by robotanarchy) (#232).
931 * Fix missing -static-libgcc when building shared libraries for Windows
932 with make.
Simon Butcher52754592015-09-03 13:06:01 +0100933 * Fix link error when building shared libraries for Windows with make.
934 * Fix error when loading libmbedtls.so.
935 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
936 be always used (found by dcb314) (#235)
937 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
938 result trying to unlock an unlocked mutex on invalid input (found by
939 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200940 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +0200941 * Fix memory corruption on client with overlong PSK identity, around
942 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200943 Aleksandrs Saveljevs) (#238)
944 * Fix unused function warning when using MBEDTLS_MDx_ALT or
945 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +0200946 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
947
948Changes
Simon Butcher52754592015-09-03 13:06:01 +0100949 * The PEM parser now accepts a trailing space at end of lines (#226).
950 * It is now possible to #include a user-provided configuration file at the
951 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
952 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +0200953 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +0100954 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +0100955 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +0200956 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +0200957 Hugo Leisink) (#210).
958 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
959 length.
960
961= mbed TLS 2.0.0 released 2015-07-13
962
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +0200963Features
964 * Support for DTLS 1.0 and 1.2 (RFC 6347).
965 * Ability to override core functions from MDx, SHAx, AES and DES modules
966 with custom implementation (eg hardware accelerated), complementing the
967 ability to override the whole module.
968 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +0200969 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +0200970 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +0200971 which algorithms and key sizes (curves for ECDSA) are acceptable.
972 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200973 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +0100974 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200975 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +0100976
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +0200977API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +0200978 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
979 You now need to link to all of them if you use TLS for example.
980 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200981 Some names have been further changed to make them more consistent.
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +0200982 Migration helpers scripts/rename.pl and include/mbedlts/compat-1.3.h are
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +0200983 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +0200984 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +0200985 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +0200986 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +0200987 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +0200988 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
989 * The following _init() functions that could return errors have
Tillmann Karras588ad502015-09-25 04:27:22 +0200990 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +0200991 should generally be the first function called on this context after init:
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +0100992 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +0200993 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
994 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
995 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
996 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +0100997 Note that for mbedtls_ssl_setup(), you need to be done setting up the
998 ssl_config structure before calling it.
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +0200999 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
1000 ssl_set_session() and ssl_set_client_transport_id(), plus
1001 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
1002 (see rename.pl and compat-1.3.h above) and their first argument's type
1003 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001004 * ssl_set_bio() changed signature (contexts merged, order switched, one
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01001005 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001006 * The following functions have been introduced and must be used in callback
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01001007 implementations (SNI, PSK) instead of their *conf counterparts:
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001008 mbedtls_ssl_set_hs_own_cert()
1009 mbedtls_ssl_set_hs_ca_chain()
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02001010 mbedtls_ssl_set_hs_psk()
1011 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001012 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001013 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001014 pointer, parameters reordered).
1015 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
1016 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001017 * The SSL debug callback gained two new arguments (file name, line number).
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001018 * Debug modes were removed.
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01001019 * mbedtls_ssl_conf_truncated_hmac() now returns void.
1020 * mbedtls_memory_buffer_alloc_init() now returns void.
1021 * X.509 verification flags are now an uint32_t. Affect the signature of:
1022 mbedtls_ssl_get_verify_result()
1023 mbedtls_x509_ctr_verify_info()
1024 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02001025 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
1026 * The following functions changed prototype to avoid an in-out length
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02001027 parameter:
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02001028 mbedtls_base64_encode()
1029 mbedtls_base64_decode()
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02001030 mbedtls_mpi_write_string()
1031 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02001032 * In the NET module, all "int" and "int *" arguments for file descriptors
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02001033 changed type to "mbedtls_net_context *".
1034 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01001035 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
1036 return void.
1037 * ecdsa_write_signature() gained an addtional md_alg argument and
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01001038 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02001039 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
1040 * Last argument of x509_crt_check_key_usage() and
1041 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00001042 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02001043 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
1044 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02001045 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001046 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
1047 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02001048 length parameter to include the terminating null byte for PEM input.
1049 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001050 * calloc() is now used instead of malloc() everywhere. API of platform
1051 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02001052 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001053 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
1054 (support for renegotiation now needs explicit enabling in config.h).
1055 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001056 in config.h
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02001057 * net_connect() and net_bind() have a new 'proto' argument to choose
1058 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02001059 Their 'port' argument type is changed to a string.
1060 * Some constness fixes
1061
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02001062Removals
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02001063 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001064 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
1065 mbedtls_ecp_muladd().
1066 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
1067 (use generic functions from md.h)
1068 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
1069 waiting function.
1070 * Removed test DHM parameters from the test certs module.
1071 * Removed the PBKDF2 module (use PKCS5).
1072 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
1073 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
1074 * Removed openssl.h (very partial OpenSSL compatibility layer).
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001075 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
1076 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
1077 been removed (compiler is required to support 32-bit operations).
1078 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001079 * Removed test program o_p_test, the script compat.sh does more.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001080 * Removed test program ssl_test, superseded by ssl-opt.sh.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001081 * Removed helper script active-config.pl
1082
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02001083New deprecations
1084 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001085 argument (allowing memory savings if HMAC is not used)
1086
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01001087Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001088 * Renamed a few headers to include _internal in the name. Those headers are
1089 not supposed to be included by users.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001090 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001091 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02001092 * Changed cipher_base_t into an opaque structure.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001093 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
1094 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001095 * Removed r and s from ecdsa_context
1096 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01001097
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02001098Default behavior changes
1099 * The default minimum TLS version is now TLS 1.0.
1100 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01001101 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001102 * Support for receiving SSLv2 ClientHello is now disabled by default at
1103 compile time.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01001104 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02001105 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
1106 enabled in the default configuration, this is only noticeable if using a
1107 custom config.h
1108 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
1109 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
1110 chain verification.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001111 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001112 * The following functions are now case-sensitive:
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001113 mbedtls_cipher_info_from_string()
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001114 mbedtls_ecp_curve_info_from_name()
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001115 mbedtls_md_info_from_string()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001116 mbedtls_ssl_ciphersuite_from_string()
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001117 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001118
1119Requirement changes
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001120 * The minimum MSVC version required is now 2010 (better C99 support).
1121 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
1122 * Compiler is required to support C99 types such as long long and uint32_t.
1123
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02001124API changes from the 1.4 preview branch
1125 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
1126 new prototype, and mbedtls_ssl_set_read_timeout().
1127 * The following functions now return void:
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02001128 mbedtls_ssl_conf_transport()
1129 mbedtls_ssl_conf_max_version()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001130 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001131 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
1132 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
1133 an example implementation, see mbedtls_timing_delay_context and
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001134 mbedtls_timing_set/get_delay().
1135 * With UDP sockets, it is no longer necessary to call net_bind() again
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001136 after a successful net_accept().
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001137
1138Changes
1139 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02001140 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01001141 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
1142 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02001143
1144= mbed TLS 1.3 branch
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001145
1146Security
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02001147 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
1148 extendedKeyUsage on the leaf certificate was lost (results not accessible
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02001149 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02001150 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02001151 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01001152
1153Features
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001154 * Improve ECC performance by using more efficient doubling formulas
1155 (contributed by Peter Dettman).
1156 * Add x509_crt_verify_info() to display certificate verification results.
1157 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00001158 (contributed by Daniel Kahn Gillmor).
1159 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00001160 * Add support for id-at-uniqueIdentifier in X.509 names.
1161 * Add support for overriding snprintf() (except on Windows) and exit() in
1162 the platform layer.
1163 * Add an option to use macros instead of function pointers in the platform
1164 layer (helps get rid of unwanted references).
1165 * Improved Makefiles for Windows targets by fixing library targets and making
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001166 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001167 * The benchmark program also prints heap usage for public-key primitives
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001168 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001169 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001170 speed and RAM (heap only for now) usage.
1171 * New script memory.sh helps measuring the ROM and RAM requirements of two
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01001172 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01001173 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001174 warnings on use of deprecated functions (with GCC and Clang only).
1175 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001176 errors on use of deprecated functions.
1177
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001178Bugfix
1179 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001180 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
1181 * Fix bug in entropy.c when THREADING_C is also enabled that caused
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001182 entropy_free() to crash (thanks to Rafał Przywara).
1183 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001184 once on the same context.
1185 * Fix bug in ssl_mail_client when password is longer that username (found
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001186 by Bruno Pape).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001187 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1188 (detected by Clang's 3.6 UBSan).
1189 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001190 initialized but not set (found by pravic).
1191 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001192 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001193 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001194 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1195 ssl_write() is called before the handshake is finished (introduced in
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001196 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001197 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1198 rejected.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001199 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001200 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
1201 * Fix hardclock() (only used in the benchmarking program) with some
1202 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001203 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001204 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1205 platforms.
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001206 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
1207 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001208 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1209 in 1.3.10).
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001210 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
1211 * Add missing dependency on SHA-256 in some x509 programs (reported by
1212 Gergely Budai).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001213 * Fix bug related to ssl_set_curves(): the client didn't check that the
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001214 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001215
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001216Changes
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001217 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1218 * Remove potential sources of timing variations (some contributed by Pascal
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001219 Junod).
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001220 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001221 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
1222 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001223 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
1224 more flexible (warning: OFLAGS is not used any more) (see the README)
1225 (contributed by Alon Bar-Lev).
1226 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001227 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001228 * Move from SHA-1 to SHA-256 in example programs using signatures
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001229 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001230 * Remove some unneeded inclusions of header files from the standard library
1231 "minimize" others (eg use stddef.h if only size_t is needed).
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001232 * Change #include lines in test files to use double quotes instead of angle
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001233 brackets for uniformity with the rest of the code.
1234 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001235
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001236= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001237Security
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001238 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001239 full and polarssl_free() is called (found by Mark Hasemeyer)
1240 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1241 not by default).
1242 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001243 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001244 client certificate) (found using Codenomicon Defensics).
1245 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1246 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001247 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001248 * Fix potential stack overflow while parsing crafted X.509 certificates
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001249 (TLS server is not affected if it doesn't ask for a client certificate)
1250 (found using Codenomicon Defensics).
1251 * Fix timing difference that could theoretically lead to a
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001252 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001253 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001254
1255Features
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001256 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001257 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
Paul Bakker6152b022015-04-14 15:00:09 +02001258 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001259 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001260 * Add x509_crl_parse_der().
1261 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001262 length of an X.509 verification chain.
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001263 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001264 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
1265 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001266 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001267 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1268 a compatible enough libc (eg uClibc).
1269 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001270 while using the default ciphersuite list.
1271 * Added new error codes and debug messages about selection of
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001272 ciphersuite/certificate.
1273
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001274Bugfix
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001275 * Stack buffer overflow if ctr_drbg_update() is called with too large
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001276 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1277 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001278 if memory_buffer_alloc_init() was called with buf not aligned and len not
1279 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001280 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001281 by Julian Ospald).
1282 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001283 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1284 multiple of 8 (found by Gergely Budai).
1285 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1286 Peter Vaskovic).
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001287 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1288 * ssl_get_verify_result() now works even if the handshake was aborted due
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001289 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001290 * Skip writing and parsing signature_algorithm extension if none of the
1291 key exchanges enabled needs certificates. This fixes a possible interop
1292 issue with some servers when a zero-length extension was sent. (Reported
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001293 by Peter Dettman.)
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001294 * On a 0-length input, base64_encode() did not correctly set output length
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001295 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001296
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001297Changes
1298 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
Paul Bakkere522d0f2015-01-14 16:12:48 +01001299 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001300 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001301 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001302 * Forbid repeated extensions in X.509 certificates.
1303 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001304 * A specific error is now returned when there are ciphersuites in common
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001305 but none of them is usable due to external factors such as no certificate
Paul Bakker9eac4f72014-10-20 13:56:15 +02001306 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001307 * It is now possible to disable negotiation of truncated HMAC server-side
1308 at runtime with ssl_set_truncated_hmac().
1309 * Example programs for SSL client and server now disable SSLv3 by default.
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001310 * Example programs for SSL client and server now disable RC4 by default.
Paul Bakkerb082bb52014-10-20 13:37:51 +02001311 * Use platform.h in all test suites and programs.
1312
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001313= PolarSSL 1.3.9 released 2014-10-20
Paul Bakkerb082bb52014-10-20 13:37:51 +02001314Security
1315 * Lowest common hash was selected from signature_algorithms extension in
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001316 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001317 * Remotely-triggerable memory leak when parsing some X.509 certificates
1318 (server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001319 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001320 * Remotely-triggerable memory leak when parsing crafted ClientHello
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001321 (not affected if ECC support was compiled out) (found using Codenomicon
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001322 Defensics).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001323
1324Bugfix
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001325 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001326 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
1327 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001328 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1329 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001330 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1331 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001332 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001333 * ssl_read() could return non-application data records on server while
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001334 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001335 * Server-initiated renegotiation would fail with non-blocking I/O if the
1336 write callback returned WANT_WRITE when requesting renegotiation.
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001337 * ssl_close_notify() could send more than one message in some circumstances
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001338 with non-blocking I/O.
1339 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1340 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001341 * Fix compile error with armcc in mpi_is_prime()
1342 * Fix potential bad read in parsing ServerHello (found by Adrien
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02001343 Vialletelle).
1344
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001345Changes
1346 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02001347 standard defining how to use SHA-2 with SSL 3.0).
1348 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02001349 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001350 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
1351 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001352 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
Paul Bakker1910aa72014-07-11 11:28:56 +02001353 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02001354 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
1355 RSA keys.
1356 * Accept spaces at end of line or end of buffer in base64_decode().
1357 * X.509 certificates with more than one AttributeTypeAndValue per
1358 RelativeDistinguishedName are not accepted any more.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001359
1360= PolarSSL 1.3.8 released 2014-07-11
1361Security
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02001362 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1363 It was possible to crash the server (and client) using crafted messages
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02001364 when a GCM suite was chosen.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02001365
1366Features
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02001367 * Add CCM module and cipher mode to Cipher Layer
1368 * Support for CCM and CCM_8 ciphersuites
Paul Bakker23647b42014-07-04 15:00:12 +02001369 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
1370 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02001371 * Blowfish in the cipher layer now supports variable length keys.
1372 * Add example config.h for PSK with CCM, optimized for low RAM usage.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001373 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Paul Bakker863989b2014-06-12 21:49:01 +02001374 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
1375 from the default list (inactive by default).
1376 * Add server-side enforcement of sent renegotiation requests
Paul Bakker34617722014-06-13 17:20:13 +02001377 (ssl_set_renegotiation_enforced())
1378 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02001379 ciphersuites to use and save some memory if the list is small.
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02001380
1381Changes
Paul Bakker28476e22014-07-01 15:59:04 +02001382 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
1383 required on some platforms (e.g. OpenBSD)
Paul Bakker863989b2014-06-12 21:49:01 +02001384 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
Paul Bakker5593f7c2014-05-06 10:29:28 +02001385 against unwanted compiler optimizations
1386 * md_list() now returns hashes strongest first
Paul Bakker1ebc0c52014-05-22 15:47:58 +02001387 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
Paul Bakkerdff31392014-05-22 15:06:41 +02001388 strongest offered by client.
Paul Bakker0f651c72014-05-22 15:12:19 +02001389 * All public contexts have _init() and _free() functions now for simpler
1390 usage pattern
Paul Bakker49033ba2014-06-12 21:46:13 +02001391
1392Bugfix
1393 * Fix in debug_print_msg()
1394 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakker3c38f292014-06-13 17:37:46 +02001395 * Remove less-than-zero checks on unsigned numbers
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001396 * Stricter check on SSL ClientHello internal sizes compared to actual packet
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02001397 size (found by TrustInSoft)
1398 * Fix WSAStartup() return value check (found by Peter Vaskovic)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001399 * Other minor issues (found by Peter Vaskovic)
1400 * Fix symlink command for cross compiling with CMake (found by Andre
1401 Heinecke)
1402 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02001403 * Very small records were incorrectly rejected when truncated HMAC was in
1404 use with some ciphersuites and versions (RC4 in all versions, CBC with
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02001405 versions < TLS 1.1).
1406 * Very large records using more than 224 bytes of padding were incorrectly
1407 rejected with CBC-based ciphersuites and TLS >= 1.1
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07001408 * Very large records using less padding could cause a buffer overread of up
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02001409 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
1410 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02001411 been removed in 1.3.6.)
1412 * Restore ability to locally trust a self-signed cert that is not a proper
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02001413 CA for use as an end entity certificate. (This had been removed in
1414 1.3.6.)
1415 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02001416 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
Paul Bakkerd5983182014-07-04 13:50:31 +02001417 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1418 * Fix off-by-one error in parsing Supported Point Format extension that
Paul Bakker6c343d72014-07-10 14:36:19 +02001419 caused some handshakes to fail.
1420 * Fix possible miscomputation of the premaster secret with DHE-PSK key
Paul Bakker5593f7c2014-05-06 10:29:28 +02001421 exchange that caused some handshakes to fail with other implementations.
Paul Bakker47431b62014-05-02 13:27:13 +02001422 (Failure rate <= 1/255 with common DHM moduli.)
Paul Bakkereaebbd52014-04-25 15:04:14 +02001423 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerc73079a2014-04-25 16:34:30 +02001424 * Fix base64_decode() to return and check length correctly (in case of
1425 tight buffers)
Paul Bakker0f90d7d2014-04-30 11:49:44 +02001426 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
1427 by Hui Dong)
Paul Bakker92478c32014-04-25 15:18:34 +02001428
Paul Bakker088c5c52014-04-25 11:11:10 +02001429= PolarSSL 1.3.7 released on 2014-05-02
1430Features
1431 * debug_set_log_mode() added to determine raw or full logging
Paul Bakker92478c32014-04-25 15:18:34 +02001432 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker63844402014-04-30 15:34:12 +02001433 * version_check_feature() added to check for compile-time options at
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02001434 run-time
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02001435
Paul Bakker088c5c52014-04-25 11:11:10 +02001436Changes
Paul Bakkere92f73d2014-04-18 14:08:26 +02001437 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
1438 checked and filled in the relevant module headers
1439 * Debug module only outputs full lines instead of parts
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02001440 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
1441 * AES-NI now compiles with "old" assemblers too
Paul Bakkerfdba4682014-04-25 11:48:35 +02001442 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker61885c72014-04-25 12:59:03 +02001443
1444Bugfix
Paul Bakkera7036632014-04-30 10:15:38 +02001445 * Only iterate over actual certificates in ssl_write_certificate_request()
1446 (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02001447 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
Paul Bakkerf96f7b62014-04-30 16:02:38 +02001448 Karger)
Paul Bakker33dc46b2014-04-30 16:11:39 +02001449 * cert_write app should use subject of issuer certificate as issuer of cert
1450 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02001451 ciphersuites, for full SSL frames of data.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02001452 * Improve interoperability by not writing extension length in ClientHello /
Markus Pfeiffera26a0052014-04-22 20:16:15 +00001453 ServerHello when no extensions are present (found by Matthew Page)
Barry K. Nathancf975f52014-04-23 17:40:25 -07001454 * rsa_check_pubkey() now allows an E up to N
1455 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakkere92f73d2014-04-18 14:08:26 +02001456 * mpi_fill_random() was creating numbers larger than requested on
Paul Bakker784b04f2014-04-11 15:33:59 +02001457 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001458 * Fix dependencies issues in X.509 test suite.
Paul Bakker27e36d32014-04-08 12:33:37 +02001459 * Some parts of ssl_tls.c were compiled even when the module was disabled.
1460 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Paul Bakker1cfc4582014-04-09 15:25:13 +02001461 * Fix detection of Clang on some Apple platforms with CMake
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001462 (found by Barry K. Nathan)
Paul Bakker59366212014-04-09 15:55:20 +02001463
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001464= PolarSSL 1.3.6 released on 2014-04-11
1465
Paul Bakker27e36d32014-04-08 12:33:37 +02001466Features
Paul Bakker4984d3c2014-04-04 15:39:37 +02001467 * Support for the ALPN SSL extension
1468 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02001469 * Enable verification of the keyUsage extension for CA and leaf
1470 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02001471 * Enable verification of the extendedKeyUsage extension
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02001472 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker4984d3c2014-04-04 15:39:37 +02001473
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001474Changes
1475 * x509_crt_info() now prints information about parsed extensions as well
1476 * pk_verify() now returns a specific error code when the signature is valid
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02001477 but shorter than the supplied length.
1478 * Use UTC time to check certificate validity.
1479 * Reject certificates with times not in UTC, per RFC 5280.
1480
Paul Bakker4224bc02014-04-08 14:36:50 +02001481Security
1482 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001483 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001484 * The notAfter date of some certificates was no longer checked since 1.3.5.
1485 This affects certificates in the user-supplied chain except the top
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01001486 certificate. If the user-supplied chain contains only one certificates,
Paul Bakker75a28602014-03-31 12:08:17 +02001487 it is not affected (ie, its notAfter date is properly checked).
1488 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02001489 TrustInSoft)
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02001490
1491Bugfix
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02001492 * The length of various ClientKeyExchange messages was not properly checked.
1493 * Some example server programs were not sending the close_notify alert.
Shuo Chen95a0d112014-04-04 21:04:40 -07001494 * Potential memory leak in mpi_exp_mod() when error occurs during
1495 calculation of RR.
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01001496 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
1497 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01001498 Gergely Budai).
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02001499 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
1500 (found by Gergely Budai)
Paul Bakker16300582014-04-11 13:28:43 +02001501 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
1502 Shuo Chen).
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02001503 * oid_get_numeric_string() used to truncate the output without returning an
1504 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001505 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Paul Bakker96d52652014-03-26 16:55:50 +01001506 * Calling pk_debug() on an RSA-alt key would segfault.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001507 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
1508 * Potential buffer overwrite in pem_write_buffer() because of low length
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001509 indication (found by Thijs Alkemade)
Paul Bakker6a28e722014-02-06 13:41:55 +01001510 * EC curves constants, which should be only in ROM since 1.3.3, were also
Paul Bakkerf2561b32014-02-06 15:11:55 +01001511 stored in RAM due to missing 'const's (found by Gergely Budai).
Paul Bakker2ceda572014-02-06 15:55:25 +01001512
1513= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001514Features
1515 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01001516 * Option to set the Curve preference order (disabled by default)
Paul Bakker66ff70d2014-03-26 11:54:05 +01001517 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakker6a28e722014-02-06 13:41:55 +01001518 * Ability to provide alternate timing implementation
1519 * Ability to force the entropy module to use SHA-256 as its basis
1520 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker47703a02014-02-06 15:01:20 +01001521 * Testing script ssl-opt.sh added for testing 'live' ssl option
1522 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01001523 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01001524 * Entropy module now supports seed writing and reading
1525
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001526Changes
1527 * Deprecated the Memory layer
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001528 * entropy_add_source(), entropy_update_manual() and entropy_gather()
Paul Bakker674e0b02014-03-26 13:26:52 +01001529 now thread-safe if POLARSSL_THREADING_C defined
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001530 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001531 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1532 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01001533 * Revamped the compat.sh interoperatibility script to include support for
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001534 testing against GnuTLS
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01001535 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01001536 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001537
Paul Bakker91c61bc2014-03-26 14:06:55 +01001538Security
1539 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001540 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001541 attack was already impossible when authentication is required).
1542 * Check notBefore timestamp of certificates and CRLs from the future.
1543 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001544 * Fixed possible buffer overflow with overlong PSK
Paul Bakkercd6d69a2014-02-06 15:43:21 +01001545 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01001546 TrustInSoft)
Paul Bakker3d52ab72014-03-07 10:33:55 +01001547
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01001548Bugfix
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01001549 * ecp_gen_keypair() does more tries to prevent failure because of
Alex Wilson73491422014-03-06 00:04:09 +10001550 statistics
1551 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001552 * Fixed testing with out-of-source builds using cmake
1553 * Fixed version-major intolerance in server
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01001554 * Fixed CMake symlinking on out-of-source builds
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001555 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001556 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001557 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01001558 Alex Wilson.)
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001559 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
Paul Bakker3d6504a2014-03-17 13:41:51 +01001560 * m_sleep() was sleeping twice too long on most Unix platforms.
1561 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakker77f4f392014-03-26 15:28:55 +01001562 send() would return an EAGAIN error when sending the ticket.
1563 * ssl_cache was leaking memory when reusing a timed out entry containing a
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01001564 client certificate.
Paul Bakker5fff23b2014-03-26 15:34:54 +01001565 * ssl_srv was leaking memory when client presented a timed out ticket
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001566 containing a client certificate
Paul Bakker2aca2412014-01-27 11:49:46 +01001567 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
Paul Bakker3eb96732014-01-22 13:08:19 +01001568 out_ctr failed
Paul Bakker0ac99ca2014-01-22 13:08:44 +01001569 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
Paul Bakker5862eee2014-01-22 14:18:03 +01001570 of one of them failed
Paul Bakker556efba2014-01-24 15:38:12 +01001571 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01001572 * x509_get_current_time() uses localtime_r() to prevent thread issues
Paul Bakker3eb96732014-01-22 13:08:19 +01001573
1574= PolarSSL 1.3.4 released on 2014-01-27
1575Features
1576 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakkerd75ba402014-01-24 16:11:17 +01001577 * Support for RIPEMD-160
Paul Bakkerb84582b2014-01-27 12:23:43 +01001578 * Support for AES CFB8 mode
1579 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01001580
1581Bugfix
1582 * Potential memory leak in bignum_selftest()
Paul Bakkerb84582b2014-01-27 12:23:43 +01001583 * Replaced expired test certificate
1584 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakker3eb96732014-01-22 13:08:19 +01001585 * net module handles timeouts on blocking sockets better (found by Tilman
Paul Bakker5bc07a32013-12-31 10:57:44 +01001586 Sauerbeck)
Paul Bakker014f1432013-12-02 14:54:01 +01001587 * Assembly format fixes in bn_mul.h
1588
Paul Bakker9dc53a92013-12-02 14:55:28 +01001589Security
1590 * Missing MPI_CHK calls added around unguarded mpi calls (found by
Paul Bakker48d78a52013-12-05 16:11:38 +01001591 TrustInSoft)
Paul Bakkerfdf94692013-12-17 13:09:31 +01001592
Paul Bakker5a607d22013-12-17 14:33:42 +01001593= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker23116fd2013-12-30 14:09:47 +01001594Features
Paul Bakkerf9c49532013-12-19 15:40:58 +01001595 * EC key generation support in gen_key app
Paul Bakker014f1432013-12-02 14:54:01 +01001596 * Support for adhering to client ciphersuite order preference
Paul Bakker7aa03752013-11-26 17:37:31 +01001597 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
1598 * Support for Curve25519
1599 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
1600 * Support for IPv6 in the NET module
Paul Bakkerc3d0d072013-12-02 14:50:49 +01001601 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakker4040d7e2013-12-02 14:52:57 +01001602 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakkerb14817d2013-12-02 22:03:23 +01001603
Paul Bakker5ab68ba2013-12-17 13:10:48 +01001604Changes
Paul Bakkerc7387912013-12-31 10:32:50 +01001605 * gen_prime() speedup
Paul Bakkera8fd3e32013-12-31 11:54:08 +01001606 * Speedup of ECP multiplication operation
Paul Bakker7aa03752013-11-26 17:37:31 +01001607 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001608 * Dropped use of readdir_r() instead of readdir() with threading support
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01001609 * More constant-time checks in the RSA module
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001610 * Split off curves from ecp.c into ecp_curves.c
Paul Bakkera9a028e2013-11-21 17:31:06 +01001611 * Curves are now stored fully in ROM
Paul Bakker7aa03752013-11-26 17:37:31 +01001612 * Memory usage optimizations in ECP module
1613 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker6f0636a2013-12-16 15:24:05 +01001614
Paul Bakkerf70fe812013-12-16 16:43:10 +01001615Bugfix
Paul Bakker1a56fc92013-12-19 13:51:24 +01001616 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakker6ea1a952013-12-31 11:16:03 +01001617 * Fixed X.509 hostname comparison (with non-regular characters)
1618 * SSL now gracefully handles missing RNG
Paul Bakker6992eb72013-12-31 11:35:16 +01001619 * Missing defines / cases for RSA_PSK key exchange
1620 * crypt_and_hash app checks MAC before final decryption
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001621 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakker956c9e02013-12-19 14:42:28 +01001622 * Memory leak in benchmark application
1623 * Fixed x509_crt_parse_path() bug on Windows platforms
1624 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
1625 TrustInSoft)
Paul Bakkerf4dc1862013-11-04 17:29:42 +01001626 * Fixed potential overflow in certificate size verification in
Paul Bakker08bb1872013-10-28 14:03:26 +01001627 ssl_write_certificate() (found by TrustInSoft)
1628
Paul Bakker3f917e22013-10-28 14:16:59 +01001629Security
Paul Bakker16421222013-10-28 14:37:09 +01001630 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Paul Bakker08bb1872013-10-28 14:03:26 +01001631 TrustInSoft)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001632
1633= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakkere1121b62013-10-31 14:37:37 +01001634Features
Paul Bakker7b0be682013-10-29 14:24:37 +01001635 * PK tests added to test framework
Paul Bakkere1121b62013-10-31 14:37:37 +01001636 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001637 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker677377f2013-10-28 12:54:26 +01001638
Paul Bakker16421222013-10-28 14:37:09 +01001639Changes
Paul Bakker677377f2013-10-28 12:54:26 +01001640 * Padding checks in cipher layer are now constant-time
Paul Bakker45a2c8d2013-10-28 12:57:08 +01001641 * Value comparisons in SSL layer are now constant-time
Paul Bakker68037da2013-10-28 14:02:40 +01001642 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakker50dc8502013-10-28 21:19:10 +01001643 * SSL Renegotiation was refactored
Paul Bakker93c6aa42013-10-28 22:28:09 +01001644
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01001645Bugfix
Paul Bakkerfa6a6202013-10-28 18:48:30 +01001646 * More stringent checks in cipher layer
Paul Bakkere1121b62013-10-31 14:37:37 +01001647 * Server does not send out extensions not advertised by client
Paul Bakker677377f2013-10-28 12:54:26 +01001648 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001649 * Misc fixes and additions to dependency checks
Paul Bakkerb799dec2013-10-11 10:03:27 +02001650 * Const correctness
1651 * cert_write with selfsign should use issuer_name as subject_name
Paul Bakker376e8152013-10-15 12:44:23 +02001652 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerf34673e2013-10-15 12:46:17 +02001653 * Defines to handle UEFI environment under MSVC
Paul Bakkerb799dec2013-10-11 10:03:27 +02001654 * Server-side initiated renegotiations send HelloRequest
Paul Bakkerddba8822013-10-11 09:21:56 +02001655
1656= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakker16770332013-10-11 09:59:44 +02001657Features
Paul Bakkerbe089b02013-10-14 15:51:50 +02001658 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakkera7ea6a52013-10-15 11:55:10 +02001659 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerddba8822013-10-11 09:21:56 +02001660 * Support for RSA-PSK key-exchange and ciphersuites
1661
1662Changes
1663 * RSA blinding locks for a smaller amount of time
1664 * TLS compression only allocates working buffer once
Paul Bakkerfcc17212013-10-11 09:36:52 +02001665 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02001666 * config.h is more script-friendly
Paul Bakker4aa40d42013-10-11 10:49:24 +02001667
Paul Bakkerb7c13122013-10-11 10:51:32 +02001668Bugfix
Paul Bakker5191e922013-10-11 10:54:28 +02001669 * Missing MSVC defines added
Paul Bakkerddba8822013-10-11 09:21:56 +02001670 * Compile errors with POLARSSL_RSA_NO_CRT
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001671 * Header files with 'polarssl/'
Paul Bakker41c83d32013-03-20 14:39:14 +01001672 * Const correctness
1673 * Possible naming collision in dhm_context
1674 * Better support for MSVC
1675 * threading_set_alt() name
1676 * Added missing x509write_crt_set_version()
Paul Bakkerc8676782013-08-28 12:15:11 +02001677
1678= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker8f4ddae2013-04-15 15:09:54 +02001679Features
Paul Bakkerb91c2b52013-04-19 16:05:16 +02001680 * Elliptic Curve Cryptography module added
Paul Bakker6e339b52013-07-03 13:37:05 +02001681 * Elliptic Curve Diffie Hellman module added
1682 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
Paul Bakker2466d932013-09-28 14:40:38 +02001683 (ECDHE-based ciphersuites)
Paul Bakker5ad403f2013-09-18 21:21:30 +02001684 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
Paul Bakkerf85778e2013-07-19 14:55:25 +02001685 (ECDSA-based ciphersuites)
1686 * Ability to specify allowed ciphersuites based on the protocol version.
1687 * PSK and DHE-PSK based ciphersuites added
1688 * Memory allocation abstraction layer added
Paul Bakkerda4d1c32013-08-14 12:24:34 +02001689 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
1690 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker936539a2013-08-14 13:49:20 +02001691 * Public Key abstraction layer added
Paul Bakkerca174fe2013-08-28 16:31:30 +02001692 * Parsing Elliptic Curve keys
1693 * Parsing Elliptic Curve certificates
Paul Bakker7fb4a792013-09-12 12:00:52 +02001694 * Support for max_fragment_length extension (RFC 6066)
1695 * Support for truncated_hmac extension (RFC 6066)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02001696 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
Paul Bakker8b817dc2013-09-25 18:03:58 +02001697 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
1698 * Support for session tickets (RFC 5077)
Paul Bakker41c83d32013-03-20 14:39:14 +01001699 * Certificate Request (CSR) generation with extensions (key_usage,
Paul Bakker9b5798d2013-03-13 13:53:00 +01001700 ns_cert_type)
Paul Bakkerd2f068e2013-08-27 21:19:20 +02001701 * X509 Certificate writing with extensions (basic_constraints,
1702 issuer_key_identifier, etc)
Paul Bakker68884e32013-01-07 18:20:04 +01001703 * Optional blinding for RSA, DHM and EC
1704 * Support for multiple active certificate / key pairs in SSL servers for
Simon Butcherbb5e1c32018-06-08 11:14:43 +01001705 the same host (Not to be confused with SNI!)
Paul Bakker9b5798d2013-03-13 13:53:00 +01001706
Paul Bakker90f042d2013-03-11 11:38:44 +01001707Changes
Paul Bakkerc0463502013-02-14 11:19:38 +01001708 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
1709 individually
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01001710 * Introduced separate SSL Ciphersuites module that is based on
1711 Cipher and MD information
Paul Bakkerc70b9822013-04-07 22:00:46 +02001712 * Internals for SSL module adapted to have separate IV pointer that is
1713 dynamically set (Better support for hardware acceleration)
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02001714 * Moved all OID functionality to a separate module. RSA function
Paul Bakker2fbefde2013-06-29 16:01:15 +02001715 prototypes for the RSA sign and verify functions changed as a result
1716 * Split up the GCM module into a starts/update/finish cycle
Paul Bakkere2ab84f2013-06-29 18:24:32 +02001717 * Client and server now filter sent and accepted ciphersuites on minimum
1718 and maximum protocol version
Paul Bakker0be444a2013-08-27 21:55:01 +02001719 * Ability to disable server_name extension (RFC 6066)
Paul Bakkere47b34b2013-02-27 14:48:00 +01001720 * Renamed error_strerror() to the less conflicting polarssl_strerror()
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001721 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9e36f042013-06-30 14:34:05 +02001722 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakker548957d2013-08-30 10:30:02 +02001723 * All RSA operations require a random generator for blinding purposes
Paul Bakker45f21c72013-09-18 15:33:49 +02001724 * X509 core refactored
1725 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker5ad403f2013-09-18 21:21:30 +02001726 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02001727 * Support faulty X509 v1 certificates with extensions
1728 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakkere47b34b2013-02-27 14:48:00 +01001729
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001730Bugfix
Paul Bakker73d44312013-05-22 13:56:26 +02001731 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02001732 * zlib compression/decompression skipped on empty blocks
Paul Bakker1e6a1752013-07-26 14:10:22 +02001733 * Support for AIX header locations in net.c module
Paul Bakker003dbad2013-09-09 17:26:14 +02001734 * Fixed file descriptor leaks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001735
Paul Bakkeraab30c12013-08-30 11:00:25 +02001736Security
1737 * RSA blinding on CRT operations to counter timing attacks
1738 (found by Cyril Arnaud and Pierre-Alain Fouque)
1739
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02001740
1741= Version 1.2.14 released 2015-05-??
1742
1743Security
1744 * Fix potential invalid memory read in the server, that allows a client to
1745 crash it remotely (found by Caj Larsson).
1746 * Fix potential invalid memory read in certificate parsing, that allows a
1747 client to crash the server remotely if client authentication is enabled
1748 (found using Codenomicon Defensics).
1749 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
1750 https://dl.acm.org/citation.cfm?id=2714625
1751
1752Bugfix
1753 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
1754 * Fix hardclock() (only used in the benchmarking program) with some
1755 versions of mingw64 (found by kxjhlele).
1756 * Fix warnings from mingw64 in timing.c (found by kxjklele).
1757 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1758 platforms (found with Coverity Scan).
1759
1760= Version 1.2.13 released 2015-02-16
1761Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
1762 this will be made in the 1.2 branch at this point.
1763
1764Security
1765 * Fix remotely-triggerable uninitialised pointer dereference caused by
1766 crafted X.509 certificate (TLS server is not affected if it doesn't ask
1767 for a client certificate) (found using Codenomicon Defensics).
1768 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1769 (TLS server is not affected if it doesn't ask for a client certificate)
1770 (found using Codenomicon Defensics).
1771 * Fix potential stack overflow while parsing crafted X.509 certificates
1772 (TLS server is not affected if it doesn't ask for a client certificate)
1773 found using Codenomicon Defensics).
1774 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
1775 (TLS server is not affected if it doesn't ask for a client certificate).
1776
1777Bugfix
1778 * Fix potential undefined behaviour in Camellia.
1779 * Fix memory leaks in PKCS#5 and PKCS#12.
1780 * Stack buffer overflow if ctr_drbg_update() is called with too large
1781 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1782 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
1783 in 1.2.12).
1784 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1785 Peter Vaskovic).
1786 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1787 * ssl_get_verify_result() now works even if the handshake was aborted due
1788 to a failed verification (found by Fredrik Axelsson).
1789 * Skip writing and parsing signature_algorithm extension if none of the
1790 key exchanges enabled needs certificates. This fixes a possible interop
1791 issue with some servers when a zero-length extension was sent. (Reported
1792 by Peter Dettman.)
1793 * On a 0-length input, base64_encode() did not correctly set output length
1794 (found by Hendrik van den Boogaard).
1795
1796Changes
1797 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
1798 * Forbid repeated extensions in X.509 certificates.
1799 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
1800 length of an X.509 verification chain (default = 8).
Paul Bakkera6c5ea22014-10-24 16:26:29 +02001801= Version 1.2.12 released 2014-10-24
1802
1803Security
1804 * Remotely-triggerable memory leak when parsing some X.509 certificates
1805 (server is not affected if it doesn't ask for a client certificate).
1806 (Found using Codenomicon Defensics.)
1807
1808Bugfix
1809 * Fix potential bad read in parsing ServerHello (found by Adrien
1810 Vialletelle).
1811 * ssl_close_notify() could send more than one message in some circumstances
1812 with non-blocking I/O.
1813 * x509_crt_parse() did not increase total_failed on PEM error
1814 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1815 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1816 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
1817 * ssl_read() could return non-application data records on server while
1818 renegotation was pending, and on client when a HelloRequest was received.
1819 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
1820
1821Changes
1822 * X.509 certificates with more than one AttributeTypeAndValue per
1823 RelativeDistinguishedName are not accepted any more.
1824 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
1825 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
1826 * Accept spaces at end of line or end of buffer in base64_decode().
1827
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02001828= Version 1.2.11 released 2014-07-11
1829Features
1830 * Entropy module now supports seed writing and reading
1831
1832Changes
1833 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
1834 * Improvements to the CMake build system, contributed by Julian Ospald.
1835 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1836 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
1837 * Improvements to tests/Makefile, contributed by Oden Eriksson.
1838 * Use UTC time to check certificate validity.
1839 * Reject certificates with times not in UTC, per RFC 5280.
1840 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
1841 against unwanted compiler optimizations
1842
1843Security
1844 * Forbid change of server certificate during renegotiation to prevent
1845 "triple handshake" attack when authentication mode is optional (the
1846 attack was already impossible when authentication is required).
1847 * Check notBefore timestamp of certificates and CRLs from the future.
1848 * Forbid sequence number wrapping
1849 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
1850 TrustInSoft)
1851 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1852 It was possible to crash the server (and client) using crafted messages
1853 when a GCM suite was chosen.
1854
1855Bugfix
1856 * Fixed X.509 hostname comparison (with non-regular characters)
1857 * SSL now gracefully handles missing RNG
1858 * crypt_and_hash app checks MAC before final decryption
1859 * Fixed x509_crt_parse_path() bug on Windows platforms
1860 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
1861 TrustInSoft)
1862 * Fixed potential overflow in certificate size verification in
1863 ssl_write_certificate() (found by TrustInSoft)
1864 * Fix ASM format in bn_mul.h
1865 * Potential memory leak in bignum_selftest()
1866 * Replaced expired test certificate
1867 * ssl_mail_client now terminates lines with CRLF, instead of LF
1868 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
1869 * Fixed testing with out-of-source builds using cmake
1870 * Fixed version-major intolerance in server
1871 * Fixed CMake symlinking on out-of-source builds
1872 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
1873 Alex Wilson.)
1874 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
1875 out_ctr failed
1876 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
1877 of one of them failed
1878 * x509_get_current_time() uses localtime_r() to prevent thread issues
1879 * Some example server programs were not sending the close_notify alert.
1880 * Potential memory leak in mpi_exp_mod() when error occurs during
1881 calculation of RR.
1882 * Improve interoperability by not writing extension length in ClientHello
1883 when no extensions are present (found by Matthew Page)
1884 * rsa_check_pubkey() now allows an E up to N
1885 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
1886 * mpi_fill_random() was creating numbers larger than requested on
1887 big-endian platform when size was not an integer number of limbs
1888 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
1889 * Stricter check on SSL ClientHello internal sizes compared to actual packet
1890 size (found by TrustInSoft)
1891 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
1892 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
1893 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1894 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
1895 * Fix base64_decode() to return and check length correctly (in case of
1896 tight buffers)
1897
Paul Bakker3a2c0562013-10-07 16:22:05 +02001898= Version 1.2.10 released 2013-10-07
1899Changes
1900 * Changed RSA blinding to a slower but thread-safe version
1901
1902Bugfix
1903 * Fixed memory leak in RSA as a result of introduction of blinding
1904 * Fixed ssl_pkcs11_decrypt() prototype
1905 * Fixed MSVC project files
1906
Paul Bakkerd93d28e2013-10-01 10:12:42 +02001907= Version 1.2.9 released 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02001908Changes
1909 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
1910
1911Bugfix
1912 * Fixed potential memory leak when failing to resume a session
1913 * Fixed potential file descriptor leaks (found by Remi Gacogne)
1914 * Minor fixes
1915
1916Security
1917 * Fixed potential heap buffer overflow on large hostname setting
1918 * Fixed potential negative value misinterpretation in load_file()
1919 * RSA blinding on CRT operations to counter timing attacks
1920 (found by Cyril Arnaud and Pierre-Alain Fouque)
1921
Paul Bakkerde656232013-06-24 19:07:34 +02001922= Version 1.2.8 released 2013-06-19
1923Features
1924 * Parsing of PKCS#8 encrypted private key files
1925 * PKCS#12 PBE and derivation functions
1926 * Centralized module option values in config.h to allow user-defined
1927 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
1928
1929Changes
1930 * HAVEGE random generator disabled by default
1931 * Internally split up x509parse_key() into a (PEM) handler function
1932 and specific DER parser functions for the PKCS#1 and unencrypted
1933 PKCS#8 private key formats
1934 * Added mechanism to provide alternative implementations for all
1935 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
Simon Butcherbb5e1c32018-06-08 11:14:43 +01001936 config.h)
Paul Bakkerde656232013-06-24 19:07:34 +02001937 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
1938 old PBKDF2 module
1939
1940Bugfix
1941 * Secure renegotiation extension should only be sent in case client
1942 supports secure renegotiation
1943 * Fixed offset for cert_type list in ssl_parse_certificate_request()
1944 * Fixed const correctness issues that have no impact on the ABI
1945 * x509parse_crt() now better handles PEM error situations
1946 * ssl_parse_certificate() now calls x509parse_crt_der() directly
1947 instead of the x509parse_crt() wrapper that can also parse PEM
Simon Butcherbb5e1c32018-06-08 11:14:43 +01001948 certificates
Paul Bakkerde656232013-06-24 19:07:34 +02001949 * x509parse_crtpath() is now reentrant and uses more portable stat()
1950 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
1951 * Fixed values for 2-key Triple DES in cipher layer
1952 * ssl_write_certificate_request() can handle empty ca_chain
1953
1954Security
1955 * A possible DoS during the SSL Handshake, due to faulty parsing of
1956 PEM-encoded certificates has been fixed (found by Jack Lloyd)
1957
1958= Version 1.2.7 released 2013-04-13
1959Features
1960 * Ability to specify allowed ciphersuites based on the protocol version.
1961
1962Changes
1963 * Default Blowfish keysize is now 128-bits
1964 * Test suites made smaller to accommodate Raspberry Pi
1965
1966Bugfix
1967 * Fix for MPI assembly for ARM
1968 * GCM adapted to support sizes > 2^29
1969
Paul Bakkerc0463502013-02-14 11:19:38 +01001970= Version 1.2.6 released 2013-03-11
1971Bugfix
1972 * Fixed memory leak in ssl_free() and ssl_reset() for active session
1973 * Corrected GCM counter incrementation to use only 32-bits instead of
Paul Bakkere47b34b2013-02-27 14:48:00 +01001974 128-bits (found by Yawning Angel)
Paul Bakkere3e4a592013-02-28 10:20:53 +01001975 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakker37286a52013-03-06 16:55:11 +01001976 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01001977 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakkerd66f0702013-01-31 16:57:45 +01001978
Paul Bakkerb3869132013-02-28 17:21:01 +01001979Changes
1980 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
1981 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
1982 PKCS#1 v2.1 functions
Paul Bakkera43231c2013-02-28 17:33:49 +01001983 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
1984 or rsa_rsaes_oaep_decrypt()
Paul Bakker78a8c712013-03-06 17:01:52 +01001985 * Re-added handling for SSLv2 Client Hello when the define
1986 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkere81beda2013-03-06 17:40:46 +01001987 * The SSL session cache module (ssl_cache) now also retains peer_cert
1988 information (not the entire chain)
Paul Bakkerb3869132013-02-28 17:21:01 +01001989
Paul Bakkere47b34b2013-02-27 14:48:00 +01001990Security
1991 * Removed further timing differences during SSL message decryption in
1992 ssl_decrypt_buf()
Paul Bakker8804f692013-02-28 18:06:26 +01001993 * Removed timing differences due to bad padding from
1994 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
1995 operations
Paul Bakkere47b34b2013-02-27 14:48:00 +01001996
Paul Bakker8fe40dc2013-02-02 12:43:08 +01001997= Version 1.2.5 released 2013-02-02
1998Changes
1999 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakkerd66f0702013-01-31 16:57:45 +01002000 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01002001 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker40865c82013-01-31 17:13:13 +01002002 * Sending of security-relevant alert messages that do not break
2003 interoperability can be switched on/off with the flag
Paul Bakkera35aa542013-03-06 17:06:21 +01002004 POLARSSL_SSL_ALL_ALERT_MESSAGES
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002005
Paul Bakker45829992013-01-03 14:52:21 +01002006Security
2007 * Removed timing differences during SSL message decryption in
2008 ssl_decrypt_buf() due to badly formatted padding
2009
Paul Bakker14c56a32013-01-25 17:11:37 +01002010= Version 1.2.4 released 2013-01-25
Paul Bakker1961b702013-01-25 14:49:24 +01002011Changes
Paul Bakker68884e32013-01-07 18:20:04 +01002012 * More advanced SSL ciphersuite representation and moved to more dynamic
2013 SSL core
Paul Bakker1961b702013-01-25 14:49:24 +01002014 * Added ssl_handshake_step() to allow single stepping the handshake process
2015
Paul Bakker40628ba2013-01-03 10:50:31 +01002016Bugfix
2017 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakker21dca692013-01-03 11:41:08 +01002018 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker9c94cdd2013-01-22 13:45:33 +01002019 * Correctly handle CertificateRequest message in client for <= TLS 1.1
2020 without DN list
Paul Bakker40628ba2013-01-03 10:50:31 +01002021
Paul Bakkerfb1ba782012-11-26 16:28:25 +01002022= Version 1.2.3 released 2012-11-26
2023Bugfix
2024 * Server not always sending correct CertificateRequest message
2025
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002026= Version 1.2.2 released 2012-11-24
Paul Bakkere667c982012-11-20 13:50:22 +01002027Changes
2028 * Added p_hw_data to ssl_context for context specific hardware acceleration
2029 data
Hanno Becker01a0e072017-07-26 11:49:40 +01002030 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkere667c982012-11-20 13:50:22 +01002031
Paul Bakker7c90da92012-11-23 14:02:40 +01002032Bugfixes
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002033 * Fixed client authentication compatibility
2034 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker7c90da92012-11-23 14:02:40 +01002035
Paul Bakker14926332012-11-20 10:58:09 +01002036= Version 1.2.1 released 2012-11-20
Paul Bakker34d8dbc2012-11-14 12:11:38 +00002037Changes
2038 * Depth that the certificate verify callback receives is now numbered
2039 bottom-up (Peer cert depth is 0)
2040
Paul Bakker7a2538e2012-11-02 10:59:36 +00002041Bugfixes
2042 * Fixes for MSVC6
Paul Bakkerd9374b02012-11-02 11:02:58 +00002043 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakkerf02c5642012-11-13 10:25:21 +00002044 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2045 Pégourié-Gonnard)
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01002046 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2047 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00002048 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakker7a2538e2012-11-02 10:59:36 +00002049
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002050= Version 1.2.0 released 2012-10-31
Paul Bakkerfab5c822012-02-06 16:45:10 +00002051Features
2052 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
2053 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
2054 default!
Paul Bakkera8cd2392012-02-11 16:09:32 +00002055 * Added support for wildcard certificates
2056 * Added support for multi-domain certificates through the X509 Subject
2057 Alternative Name extension
Paul Bakkerbdb912d2012-02-13 23:11:30 +00002058 * Added preliminary ASN.1 buffer writing support
2059 * Added preliminary X509 Certificate Request writing support
2060 * Added key_app_writer example application
2061 * Added cert_req example application
Paul Bakker89e80c92012-03-20 13:50:09 +00002062 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker48916f92012-09-16 19:57:18 +00002063 * Added TLS 1.2 support (RFC 5246)
Paul Bakkerca4ab492012-04-18 14:23:57 +00002064 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker01cc3942012-05-08 08:36:15 +00002065 * Added commandline error code convertor (util/strerror)
Paul Bakker05ef8352012-05-08 09:17:57 +00002066 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002067 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002068 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker8d914582012-06-04 12:46:42 +00002069 * Added X509 CA Path support
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00002070 * Added Thumb assembly optimizations
Paul Bakker2770fbd2012-07-03 13:30:23 +00002071 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002072 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakkerf518b162012-08-23 13:03:18 +00002073 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker48916f92012-09-16 19:57:18 +00002074 * Added Secure Renegotiation (RFC 5746)
Paul Bakker29b64762012-09-25 09:36:44 +00002075 * Added predefined DHM groups from RFC 5114
Paul Bakker0a597072012-09-25 21:55:46 +00002076 * Added simple SSL session cache implementation
Paul Bakker5701cdc2012-09-27 21:49:42 +00002077 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1d29fb52012-09-28 13:28:45 +00002078 * Added option to add minimum accepted SSL/TLS protocol version
Paul Bakkerfab5c822012-02-06 16:45:10 +00002079
Paul Bakker1504af52012-02-11 16:17:43 +00002080Changes
2081 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker048d04e2012-02-12 17:31:04 +00002082 * AES code only check for Padlock once
Paul Bakker6b906e52012-05-08 12:01:43 +00002083 * Fixed const-correctness mpi_get_bit()
2084 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker186751d2012-05-08 13:16:14 +00002085 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker4d2c1242012-05-10 14:12:46 +00002086 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakker5b377842012-05-16 07:57:36 +00002087 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002088 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
2089 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkerec636f32012-09-09 19:17:02 +00002090 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker0a597072012-09-25 21:55:46 +00002091 * Revamped session resumption handling
Paul Bakkereb2c6582012-09-27 19:15:01 +00002092 * Generalized external private key implementation handling (like PKCS#11)
2093 in SSL/TLS
Paul Bakker915275b2012-09-28 07:10:55 +00002094 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker5c2364c2012-10-01 14:41:15 +00002095 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker645ce3a2012-10-31 12:32:41 +00002096 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker1504af52012-02-11 16:17:43 +00002097
Paul Bakker37824582012-03-22 14:10:22 +00002098Bugfix
Paul Bakker7beceb22012-03-22 14:19:49 +00002099 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2100 Hui Dong)
Paul Bakker430ffbe2012-05-01 08:14:20 +00002101 * Fixed potential heap corruption in x509_name allocation
Paul Bakker5b377842012-05-16 07:57:36 +00002102 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkerf6198c12012-05-16 08:02:29 +00002103 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2104 #52)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002105 * Handle encryption with private key and decryption with public key as per
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002106 RFC 2313
Paul Bakkercefb3962012-06-27 11:51:09 +00002107 * Handle empty certificate subject names
Paul Bakker535e97d2012-08-23 10:49:55 +00002108 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00002109 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker995a2152012-09-25 08:19:56 +00002110 with carry rollover (found by Ruslan Yushchenko)
Paul Bakkerb00ca422012-09-25 12:10:00 +00002111 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker4f024b72012-10-30 07:29:57 +00002112 * Fixed MPI assembly for SPARC64 platform
Paul Bakker37824582012-03-22 14:10:22 +00002113
Paul Bakker452d5322012-04-05 12:07:34 +00002114Security
Paul Bakker3c16db92012-07-05 13:58:08 +00002115 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2116 Vanderbeken)
Paul Bakker452d5322012-04-05 12:07:34 +00002117
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002118= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002119Bugfix
2120 * Fixed potential memory leak when failing to resume a session
2121 * Fixed potential file descriptor leaks
2122
2123Security
2124 * Potential buffer-overflow for ssl_read_record() (independently found by
2125 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
2126 * Potential negative value misinterpretation in load_file()
2127 * Potential heap buffer overflow on large hostname setting
2128
Paul Bakker248fff52013-06-24 19:08:50 +02002129= Version 1.1.7 released on 2013-06-19
2130Changes
2131 * HAVEGE random generator disabled by default
2132
2133Bugfix
2134 * x509parse_crt() now better handles PEM error situations
2135 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2136 instead of the x509parse_crt() wrapper that can also parse PEM
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002137 certificates
Paul Bakker248fff52013-06-24 19:08:50 +02002138 * Fixed values for 2-key Triple DES in cipher layer
2139 * ssl_write_certificate_request() can handle empty ca_chain
2140
2141Security
2142 * A possible DoS during the SSL Handshake, due to faulty parsing of
2143 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2144
2145= Version 1.1.6 released on 2013-03-11
2146Bugfix
2147 * Fixed net_bind() for specified IP addresses on little endian systems
2148
2149Changes
2150 * Allow enabling of dummy error_strerror() to support some use-cases
2151 * Debug messages about padding errors during SSL message decryption are
2152 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
2153
2154Security
2155 * Removed timing differences during SSL message decryption in
2156 ssl_decrypt_buf()
2157 * Removed timing differences due to bad padding from
2158 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2159 operations
2160
Paul Bakker9d2bb652013-01-25 16:07:49 +01002161= Version 1.1.5 released on 2013-01-16
2162Bugfix
2163 * Fixed MPI assembly for SPARC64 platform
2164 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
2165 * mpi_add_abs() now correctly handles adding short numbers to long numbers
2166 with carry rollover
2167 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
2168 * Prevent reading over buffer boundaries on X509 certificate parsing
2169 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2170 #52)
2171 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2172 Pégourié-Gonnard)
2173 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2174 Pégourié-Gonnard)
2175 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2176 * Memory leak when using RSA_PKCS_V21 operations fixed
2177 * Handle encryption with private key and decryption with public key as per
2178 RFC 2313
2179 * Fixes for MSVC6
2180
2181Security
2182 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2183 Vanderbeken)
2184
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002185= Version 1.1.4 released on 2012-05-31
2186Bugfix
2187 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2188 * Fixed potential heap corruption in x509_name allocation
2189 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2190
Paul Bakkerfad38932012-05-08 09:04:04 +00002191= Version 1.1.3 released on 2012-04-29
2192Bugfix
2193 * Fixed random MPI generation to not generate more size than requested.
2194
2195= Version 1.1.2 released on 2012-04-26
2196Bugfix
2197 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2198 Hui Dong)
2199
2200Security
2201 * Fixed potential memory corruption on miscrafted client messages (found by
2202 Frama-C team at CEA LIST)
2203 * Fixed generation of DHM parameters to correct length (found by Ruslan
2204 Yushchenko)
2205
Paul Bakker99955bf2012-01-23 09:31:41 +00002206= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002207Bugfix
2208 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2209 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002210 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002211 * Fixed multiple compiler warnings for VS6 and armcc
2212 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002213
Paul Bakker08a50882011-12-22 09:43:57 +00002214= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002215Features
2216 * Added ssl_session_reset() to allow better multi-connection pools of
2217 SSL contexts without needing to set all non-connection-specific
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002218 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002219 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2220 supported version to a server to help buggy server implementations.
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002221 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002222 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2223 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002224 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002225 * Added a generic entropy accumulator that provides support for adding
2226 custom entropy sources and added some generic and platform dependent
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002227 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002228
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002229Changes
2230 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002231 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2232 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002233 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002234 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002235 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002236 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2237 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002238 * Changed the defined key-length of DES ciphers in cipher.h to include the
2239 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002240 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002241 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002242 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2243 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002244 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2245 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002246 * Changed the used random function pointer to more flexible format. Renamed
2247 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002248 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002249 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002250 * Added permissive certificate parsing to x509parse_crt() and
2251 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002252 encountering a parse-error. Beware that the meaning of return values has
2253 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002254 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002255
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002256Bugfix
2257 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2258 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002259 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2260 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002261 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2262 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002263 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2264 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002265 * If certificate serial is longer than 32 octets, serial number is now
2266 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002267 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002268 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002269 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002270 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002271
Paul Bakker968bc982011-07-27 17:03:00 +00002272= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002273Features
2274 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002275 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002276
Paul Bakker42e59812011-06-09 15:55:41 +00002277Changes
2278 * The generic cipher and message digest layer now have normal error
2279 codes instead of integers
2280
Paul Bakker887bd502011-06-08 13:10:54 +00002281Bugfix
2282 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2283 #18)
2284
Paul Bakker828acb22011-05-27 09:25:42 +00002285= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002286Features
2287 * Added additional Cipher Block Modes to symmetric ciphers
2288 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002289 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002290 * Functions requiring File System functions can now be disabled
2291 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002292 * A error_strerror function() has been added to translate between
2293 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002294 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2295 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002296 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002297
Paul Bakker23986e52011-04-24 08:57:21 +00002298Changes
2299 * Major argument / variable rewrite. Introduced use of size_t
2300 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002301 better unsigned / signed use. Renamed internal bigint types
2302 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002303 * mpi_init() and mpi_free() now only accept a single MPI
2304 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002305 * The error codes have been remapped and combining error codes
2306 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002307 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002308 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2309 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002310 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2311 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2312 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2313 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002314 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2315 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002316 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002317
Paul Bakker3efa5752011-04-01 12:23:26 +00002318= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002319Features
2320 * Added support for PKCS#1 v2.1 encoding and thus support
2321 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002322 * Reading of Public Key files incorporated into default x509
2323 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002324 * Added mpi_fill_random() for centralized filling of big numbers
2325 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002326
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002327Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002328 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002329 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002330 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002331 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002332 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002333
2334Bugfix
2335 * Debug output of MPI's now the same independent of underlying
2336 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002337 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002338 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2339 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002340 * Fixed proper handling of RSASSA-PSS verification with variable
2341 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002342
Paul Bakker345a6fe2011-02-28 21:20:02 +00002343= Version 0.99-pre3 released on 2011-02-28
2344This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002345Features
2346 * Parsing PEM private keys encrypted with DES and AES
2347 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002348 * Added crl_app program to allow easy reading and
2349 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00002350
2351Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002352 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00002353 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01002354 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00002355
Paul Bakker400ff6f2011-02-20 10:40:16 +00002356Bugfixes
2357 * Corrected parsing of UTCTime dates before 1990 and
2358 after 1950
2359 * Support more exotic OID's when parsing certificates
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002360 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002361 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002362 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002363 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002364 * Do not bail out if no client certificate specified. Try
2365 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01002366 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002367
Paul Bakker345a6fe2011-02-28 21:20:02 +00002368Security fixes
2369 * Fixed a possible Man-in-the-Middle attack on the
2370 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01002371 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00002372
Paul Bakker9fc46592011-01-30 16:59:02 +00002373= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00002374Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00002375Note: Most of these features have been donated by Fox-IT
2376 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00002377 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00002378 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00002379 certificate fields, including Key Usage
2380 * Improved certificate verification and verification
2381 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00002382 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00002383 * Improvements to support integration in other
2384 applications:
2385 + Added generic message digest and cipher wrapper
2386 + Improved information about current capabilities,
2387 status, objects and configuration
2388 + Added verification callback on certificate chain
2389 verification to allow external blacklisting
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002390 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00002391 * Added support for PKCS#11 through the use of the
2392 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00002393
Paul Bakkerb6194992011-01-16 21:40:22 +00002394Changes
2395 * x509parse_time_expired() checks time in addition to
2396 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00002397 * The ciphers member of ssl_context and the cipher member
2398 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01002399 ciphersuite respectively. This clarifies the difference
2400 with the generic cipher layer and is better naming
2401 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00002402
Paul Bakker99ed6782011-01-05 14:48:42 +00002403= Version 0.14.0 released on 2010-08-16
2404Features
2405 * Added support for SSL_EDH_RSA_AES_128_SHA and
2406 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
2407 * Added compile-time and run-time version information
2408 * Expanded ssl_client2 arguments for more flexibility
2409 * Added support for TLS v1.1
2410
2411Changes
2412 * Made Makefile cleaner
2413 * Removed dependency on rand() in rsa_pkcs1_encrypt().
2414 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01002415 changed the prototype of rsa_pkcs1_encrypt(),
2416 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00002417 * Some SSL defines were renamed in order to avoid
2418 future confusion
2419
2420Bug fixes
2421 * Fixed CMake out of source build for tests (found by
2422 kkert)
2423 * rsa_check_private() now supports PKCS1v2 keys as well
2424 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
2425 generator
2426
2427= Version 0.13.1 released on 2010-03-24
2428Bug fixes
2429 * Fixed Makefile in library that was mistakenly merged
2430 * Added missing const string fixes
2431
2432= Version 0.13.0 released on 2010-03-21
2433Features
2434 * Added option parsing for host and port selection to
2435 ssl_client2
2436 * Added support for GeneralizedTime in X509 parsing
2437 * Added cert_app program to allow easy reading and
2438 printing of X509 certificates from file or SSL
2439 connection.
2440
2441Changes
2442 * Added const correctness for main code base
2443 * X509 signature algorithm determination is now
2444 in a function to allow easy future expansion
2445 * Changed symmetric cipher functions to
2446 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01002447 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00002448 * Added reset function for HMAC context as speed-up
2449 for specific use-cases
2450
2451Bug fixes
2452 * Fixed bug resulting in failure to send the last
2453 certificate in the chain in ssl_write_certificate() and
2454 ssl_write_certificate_request() (found by fatbob)
2455 * Added small fixes for compiler warnings on a Mac
2456 (found by Frank de Brabander)
2457 * Fixed algorithmic bug in mpi_is_prime() (found by
2458 Smbat Tonoyan)
2459
2460= Version 0.12.1 released on 2009-10-04
2461Changes
2462 * Coverage test definitions now support 'depends_on'
2463 tagging system.
2464 * Tests requiring specific hashing algorithms now honor
2465 the defines.
2466
2467Bug fixes
2468 * Changed typo in #ifdef in x509parse.c (found
2469 by Eduardo)
2470
2471= Version 0.12.0 released on 2009-07-28
2472Features
2473 * Added CMake makefiles as alternative to regular Makefiles.
2474 * Added preliminary Code Coverage tests for AES, ARC4,
2475 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
2476 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
2477 and X509parse.
2478
2479Changes
2480 * Error codes are not (necessarily) negative. Keep
2481 this is mind when checking for errors.
2482 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
2483 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
2484 * Changed interface for AES and Camellia setkey functions
2485 to indicate invalid key lengths.
2486
2487Bug fixes
2488 * Fixed include location of endian.h on FreeBSD (found by
2489 Gabriel)
2490 * Fixed include location of endian.h and name clash on
2491 Apples (found by Martin van Hensbergen)
2492 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
2493 required HMAC ipad and opad variables are not cleared.
2494 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01002495 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00002496 POLARSSL_HAVE_LONGLONG not defined (found by Giles
2497 Bathgate).
2498 * Fixed incorrect handling of negative strings in
2499 mpi_read_string() (found by code coverage tests).
2500 * Fixed segfault on handling empty rsa_context in
2501 rsa_check_pubkey() and rsa_check_privkey() (found by
2502 code coverage tests).
2503 * Fixed incorrect handling of one single negative input
2504 value in mpi_add_abs() (found by code coverage tests).
2505 * Fixed incorrect handling of negative first input
2506 value in mpi_sub_abs() (found by code coverage tests).
2507 * Fixed incorrect handling of negative first input
2508 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
2509 change also affects mpi_write_string() (found by code
2510 coverage tests).
2511 * Corrected is_prime() results for 0, 1 and 2 (found by
2512 code coverage tests).
2513 * Fixed Camellia and XTEA for 64-bit Windows systems.
2514
2515= Version 0.11.1 released on 2009-05-17
2516 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
2517 SHA-512 in rsa_pkcs1_sign()
2518
2519= Version 0.11.0 released on 2009-05-03
2520 * Fixed a bug in mpi_gcd() so that it also works when both
2521 input numbers are even and added testcases to check
2522 (found by Pierre Habouzit).
2523 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
2524 one way hash functions with the PKCS#1 v1.5 signing and
2525 verification.
2526 * Fixed minor bug regarding mpi_gcd located within the
2527 POLARSSL_GENPRIME block.
2528 * Fixed minor memory leak in x509parse_crt() and added better
2529 handling of 'full' certificate chains (found by Mathias
2530 Olsson).
2531 * Centralized file opening and reading for x509 files into
2532 load_file()
2533 * Made definition of net_htons() endian-clean for big endian
2534 systems (Found by Gernot).
2535 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01002536 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00002537 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
2538 responsible for crashes and unwanted behaviour.
2539 * Added support for Certificate Revocation List (CRL) parsing.
2540 * Added support for CRL revocation to x509parse_verify() and
2541 SSL/TLS code.
2542 * Fixed compatibility of XTEA and Camellia on a 64-bit system
2543 (found by Felix von Leitner).
2544
2545= Version 0.10.0 released on 2009-01-12
2546 * Migrated XySSL to PolarSSL
2547 * Added XTEA symmetric cipher
2548 * Added Camellia symmetric cipher
2549 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
2550 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
2551 * Fixed dangerous bug that can cause a heap overflow in
2552 rsa_pkcs1_decrypt (found by Christophe Devine)
2553
2554================================================================
2555XySSL ChangeLog
2556
2557= Version 0.9 released on 2008-03-16
2558
2559 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
2560 * Enabled support for large files by default in aescrypt2.c
2561 * Preliminary openssl wrapper contributed by David Barrett
2562 * Fixed a bug in ssl_write() that caused the same payload to
2563 be sent twice in non-blocking mode when send returns EAGAIN
2564 * Fixed ssl_parse_client_hello(): session id and challenge must
2565 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
2566 * Added user-defined callback debug function (Krystian Kolodziej)
2567 * Before freeing a certificate, properly zero out all cert. data
2568 * Fixed the "mode" parameter so that encryption/decryption are
2569 not swapped on PadLock; also fixed compilation on older versions
2570 of gcc (bug reported by David Barrett)
2571 * Correctly handle the case in padlock_xcryptcbc() when input or
2572 ouput data is non-aligned by falling back to the software
2573 implementation, as VIA Nehemiah cannot handle non-aligned buffers
2574 * Fixed a memory leak in x509parse_crt() which was reported by Greg
2575 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
2576 Matthew Page who reported several bugs
2577 * Fixed x509_get_ext() to accept some rare certificates which have
2578 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
2579 * Added support on the client side for the TLS "hostname" extension
2580 (patch contributed by David Patino)
2581 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
2582 string is passed as the CN (bug reported by spoofy)
2583 * Added an option to enable/disable the BN assembly code
2584 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
2585 * Disabled obsolete hash functions by default (MD2, MD4); updated
2586 selftest and benchmark to not test ciphers that have been disabled
2587 * Updated x509parse_cert_info() to correctly display byte 0 of the
2588 serial number, setup correct server port in the ssl client example
2589 * Fixed a critical denial-of-service with X.509 cert. verification:
2590 peer may cause xyssl to loop indefinitely by sending a certificate
2591 for which the RSA signature check fails (bug reported by Benoit)
2592 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
2593 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
2594 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
2595 * Modified ssl_parse_client_key_exchange() to protect against
2596 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
2597 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
2598 * Updated rsa_gen_key() so that ctx->N is always nbits in size
2599 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
2600 David Barrett and Dusan Semen
2601
2602= Version 0.8 released on 2007-10-20
2603
2604 * Modified the HMAC functions to handle keys larger
2605 than 64 bytes, thanks to Stephane Desneux and gary ng
2606 * Fixed ssl_read_record() to properly update the handshake
2607 message digests, which fixes IE6/IE7 client authentication
2608 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
2609 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
2610 * Added user-defined callbacks for handling I/O and sessions
2611 * Added lots of debugging output in the SSL/TLS functions
2612 * Added preliminary X.509 cert. writing by Pascal Vizeli
2613 * Added preliminary support for the VIA PadLock routines
2614 * Added AES-CFB mode of operation, contributed by chmike
2615 * Added an SSL/TLS stress testing program (ssl_test.c)
2616 * Updated the RSA PKCS#1 code to allow choosing between
2617 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
2618 * Updated ssl_read() to skip 0-length records from OpenSSL
2619 * Fixed the make install target to comply with *BSD make
2620 * Fixed a bug in mpi_read_binary() on 64-bit platforms
2621 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
2622 * Fixed a long standing memory leak in mpi_is_prime()
2623 * Replaced realloc with malloc in mpi_grow(), and set
2624 the sign of zero as positive in mpi_init() (reported
2625 by Jonathan M. McCune)
2626
2627= Version 0.7 released on 2007-07-07
2628
2629 * Added support for the MicroBlaze soft-core processor
2630 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
2631 connections from being established with non-blocking I/O
2632 * Fixed a couple bugs in the VS6 and UNIX Makefiles
2633 * Fixed the "PIC register ebx clobbered in asm" bug
2634 * Added HMAC starts/update/finish support functions
2635 * Added the SHA-224, SHA-384 and SHA-512 hash functions
2636 * Fixed the net_set_*block routines, thanks to Andreas
2637 * Added a few demonstration programs: md5sum, sha1sum,
2638 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
2639 * Added new bignum import and export helper functions
2640 * Rewrote README.txt in program/ssl/ca to better explain
2641 how to create a test PKI
2642
2643= Version 0.6 released on 2007-04-01
2644
2645 * Ciphers used in SSL/TLS can now be disabled at compile
2646 time, to reduce the memory footprint on embedded systems
2647 * Added multiply assembly code for the TriCore and modified
2648 havege_struct for this processor, thanks to David Patiño
2649 * Added multiply assembly code for 64-bit PowerPCs,
2650 thanks to Peking University and the OSU Open Source Lab
2651 * Added experimental support of Quantum Cryptography
2652 * Added support for autoconf, contributed by Arnaud Cornet
2653 * Fixed "long long" compilation issues on IA-64 and PPC64
2654 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
2655 was not being correctly defined on ARM and MIPS
2656
2657= Version 0.5 released on 2007-03-01
2658
2659 * Added multiply assembly code for SPARC and Alpha
2660 * Added (beta) support for non-blocking I/O operations
2661 * Implemented session resuming and client authentication
2662 * Fixed some portability issues on WinCE, MINIX 3, Plan9
2663 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
2664 * Improved the performance of the EDH key exchange
2665 * Fixed a bug that caused valid packets with a payload
2666 size of 16384 bytes to be rejected
2667
2668= Version 0.4 released on 2007-02-01
2669
2670 * Added support for Ephemeral Diffie-Hellman key exchange
2671 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
2672 * Various improvement to the modular exponentiation code
2673 * Rewrote the headers to generate the API docs with doxygen
2674 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
2675 generated) and in ssl_parse_client_hello (max. client
2676 version was not properly set), thanks to Didier Rebeix
2677 * Fixed another bug in ssl_parse_client_hello: clients with
2678 cipherlists larger than 96 bytes were incorrectly rejected
2679 * Fixed a couple memory leak in x509_read.c
2680
2681= Version 0.3 released on 2007-01-01
2682
2683 * Added server-side SSLv3 and TLSv1.0 support
2684 * Multiple fixes to enhance the compatibility with g++,
2685 thanks to Xosé Antón Otero Ferreira
2686 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01002687 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00002688 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
2689 * Updated timing.c for improved compatibility with i386
2690 and 486 processors, thanks to Arnaud Cornet
2691
2692= Version 0.2 released on 2006-12-01
2693
2694 * Updated timing.c to support ARM and MIPS arch
2695 * Updated the MPI code to support 8086 on MSVC 1.5
2696 * Added the copyright notice at the top of havege.h
2697 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
2698 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
2699 * Fixed a bug reported by Torsten Lauter in ssl_read_record
2700 * Fixed a bug in rsa_check_privkey that would wrongly cause
2701 valid RSA keys to be dismissed (thanks to oldwolf)
2702 * Fixed a bug in mpi_is_prime that caused some primes to fail
2703 the Miller-Rabin primality test
2704
2705 I'd also like to thank Younès Hafri for the CRUX linux port,
2706 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
2707 who maintains the Debian package :-)
2708
2709= Version 0.1 released on 2006-11-01