blob: 46741374f8f89242ce80486cf6e2b546f121216c [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
Ron Eldorf19a7ab2018-06-20 18:40:21 +03003= mbed TLS x.x.x branch released xxxx-xx-xx
4
Hanno Becker0a08a4a2018-11-02 09:36:45 +00005Security
6 * Fix overly strict DN comparison when looking for CRLs
7 belonging to a particular CA. This previously lead to
8 ignoring CRLs when the CRL's issuer name and the CA's
9 subject name differed in their string encoding (e.g.,
10 one using PrintableString and the other UTF8String) or
11 in the choice of upper and lower case. Reported by
12 HenrikRosenquistAndersson in #1784.
13
Ron Eldorf19a7ab2018-06-20 18:40:21 +030014Bugfix
15 * Fix failure in hmac_drbg in the benchmark sample application, when
16 MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
Simon Butcher651902d2018-09-26 22:35:51 +010017 * Fix a bug in the update function for SSL ticket keys which previously
18 invalidated keys of a lifetime of less than a 1s. Fixes #1968.
Hanno Becker7e1913b2018-10-17 14:53:05 +010019 * Fix a bug in the record decryption routine ssl_decrypt_buf()
20 which lead to accepting properly authenticated but improperly
21 padded records in case of CBC ciphersuites using Encrypt-then-MAC.
Hanno Becker591cdb02018-10-09 12:44:35 +010022 * Fix wrong order of freeing in programs/ssl/ssl_server2 example
23 application leading to a memory leak in case both
24 MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set.
25 Fixes #2069.
Hanno Becker16a77622018-10-05 09:51:36 +010026 * Fix memory leak and freeing without initialization in the example
27 program programs/x509/cert_write. Fixes #1422.
Ron Eldorcf2305e2017-09-25 17:03:12 +030028 * Ignore iv in mbedtls_cipher_set_iv() when the cipher mode is MBEDTLS_MODE_ECB
29 Fix for #1091 raised by ezdevelop
Hanno Becker74a1c4b2018-10-15 13:20:28 +010030 * Zeroize memory used for reassembling handshake messages after use.
31 * Use `mbedtls_zeroize()` instead of `memset()` for zeroization of
32 sensitive data in the example programs aescrypt2 and crypt_and_hash.
Ron Eldorf19a7ab2018-06-20 18:40:21 +030033
Simon Butcherfa5054f2018-09-26 22:56:03 +010034Changes
35 * Add tests for session resumption in DTLS.
Simon Butcherf73b4372018-09-26 22:57:24 +010036 * Close a test gap in (D)TLS between the client side and the server side:
37 test the handling of large packets and small packets on the client side
38 in the same way as on the server side.
Simon Butcher7c9086b2018-05-12 20:28:56 +010039 * Change the dtls_client and dtls_server samples to work by default over
40 IPv6 and optionally by a build option over IPv4.
Simon Butcher7b28abc2018-11-04 18:51:49 +000041 * Change the use of Windows threading to use Microsoft Visual C++ runtime
42 calls, rather than Win32 API calls directly. This is necessary to avoid
43 conflict with C runtime usage. Found and fixed by irwir.
Simon Butcherfa5054f2018-09-26 22:56:03 +010044
Simon Butcher34997fd2018-08-31 16:07:23 +010045= mbed TLS 2.7.6 branch released 2018-08-31
Simon Butcher51a46b92018-07-30 22:15:14 +010046
k-stachowiak6cba5692018-07-09 14:45:00 +020047Security
k-stachowiak55bea652018-07-16 12:14:18 +020048 * Fix an issue in the X.509 module which could lead to a buffer overread
49 during certificate extensions parsing. In case of receiving malformed
50 input (extensions length field equal to 0), an illegal read of one byte
51 beyond the input buffer is made. Found and analyzed by Nathan Crandall.
k-stachowiak6cba5692018-07-09 14:45:00 +020052
Simon Butcher51a46b92018-07-30 22:15:14 +010053Bugfix
Simon Butchera36fe372018-08-31 12:00:58 +010054 * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation
55 failure in the function could lead to other buffers being leaked.
Simon Butcherd6a63f42018-09-13 11:59:03 +010056 * Fixes a missing test dependency on MBEDTLS_ARC4_C. #1890
Jaeden Amero3b691742018-08-10 10:50:34 +010057 * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails.
58 Fix contributed by Espressif Systems.
Ron Eldor335cf422018-06-21 16:40:24 +030059 * Add ecc extensions only if an ecc based ciphersuite is used.
Ron Eldor6a5d6e22018-06-28 11:09:09 +030060 This improves compliance to RFC 4492, and as a result, solves
61 interoperability issues with BouncyCastle. Raised by milenamil in #1157.
Hanno Becker80588002018-08-13 16:36:58 +010062 * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len()
63 and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941.
Hanno Beckerf38db012018-08-03 09:53:48 +010064 * Fix a miscalculation of the maximum record expansion in
65 mbedtls_ssl_get_record_expansion() in case of CBC ciphersuites
66 in (D)TLS versions 1.1 or higher. Fixes #1914.
Hanno Becker517e84a2018-08-17 09:47:22 +010067 * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake
68 with TLS versions 1.1 and earlier when the server requested authentication
69 without providing a list of CAs. This was due to an overly strict bounds
Simon Butcherd6a63f42018-09-13 11:59:03 +010070 check in parsing the CertificateRequest message, introduced in
71 Mbed TLS 2.12.0. Fixes #1954.
Philippe Antoine84cc74e2018-05-11 11:06:29 +020072 * Fix undefined shifts with negative values in certificates parsing
73 (found by Catena cyber using oss-fuzz)
Hanno Becker20b5d142017-10-08 16:13:03 +010074 * Fix memory leak and free without initialization in pk_encrypt
75 and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128.
Simon Butcher51a46b92018-07-30 22:15:14 +010076
Jaeden Amero9eb78b42018-08-10 11:26:15 +010077Changes
78 * Improve compatibility with some alternative CCM implementations by using
79 CCM test vectors from RAM.
80
Jaeden Amero83851102018-07-25 15:36:21 +010081= mbed TLS 2.7.5 branch released 2018-07-25
Andres AGee7157e2016-12-07 10:25:19 +000082
Gilles Peskineb2d88402018-06-27 10:57:33 +020083Security
84 * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384,
85 in (D)TLS 1.0 to 1.2, that allowed an active network attacker to
86 partially recover the plaintext of messages under some conditions by
87 exploiting timing measurements. With DTLS, the attacker could perform
88 this recovery by sending many messages in the same connection. With TLS
89 or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only
90 worked if the same secret (for example a HTTP Cookie) has been repeatedly
91 sent over connections manipulated by the attacker. Connections using GCM
92 or CCM instead of CBC, using hash sizes other than SHA-384, or using
93 Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was
94 caused by a miscalculation (for SHA-384) in a countermeasure to the
95 original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi
96 Shamir.
Manuel Pégourié-Gonnard5fcfd032018-06-28 12:10:27 +020097 * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to
98 1.2, that allowed a local attacker, able to execute code on the local
99 machine as well as manipulate network packets, to partially recover the
Manuel Pégourié-Gonnardaba8c5b2018-07-11 18:27:08 +0200100 plaintext of messages under some conditions by using a cache attack
101 targetting an internal MD/SHA buffer. With TLS or if
102 mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if
103 the same secret (for example a HTTP Cookie) has been repeatedly sent over
104 connections manipulated by the attacker. Connections using GCM or CCM
105 instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected.
106 Found by Kenny Paterson, Eyal Ronen and Adi Shamir.
Manuel Pégourié-Gonnardaeeaaf22018-06-28 10:38:35 +0200107 * Add a counter-measure against a vulnerability in TLS ciphersuites based
108 on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to
109 execute code on the local machine as well as manipulate network packets,
110 to partially recover the plaintext of messages under some conditions (see
111 previous entry) by using a cache attack targeting the SSL input record
112 buffer. Connections using GCM or CCM instead of CBC or using
113 Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson,
114 Eyal Ronen and Adi Shamir.
Gilles Peskineb2d88402018-06-27 10:57:33 +0200115
Simon Butcherf15cfd52018-06-27 11:05:44 +0100116Bugfix
niisato2120ef82018-06-25 20:07:10 +0900117 * Fix compilation error on C++, because of a variable named new.
118 Found and fixed by Hirotaka Niisato in #1783.
Simon Butcherc6bf5b42018-06-24 16:20:56 +0100119 * Fix the inline assembly for the MPI multiply helper function for i386 and
120 i386 with SSE2. Found by László Langó. Fixes #1550
Simon Butcher9a08e442018-06-22 12:02:59 +0100121 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
Simon Butcher41c23b52018-06-28 12:13:57 +0100122 Philippe Antoine. Fixes #1623.
Andres Amaya Garcia294331a2017-07-11 14:39:30 +0100123 * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
124 return value. Found by @davidwu2000. #839
Simon Butchera67b20c2018-06-28 11:59:51 +0100125 * Fix the key_app_writer example which was writing a leading zero byte which
126 was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
Simon Butcher318cd2c2018-07-02 12:00:54 +0100127 * Remove unused headers included in x509.c. Found by Chris Hanson and fixed
128 by Brendan Shanks. Part of a fix for #992.
Ron Eldor22bc7c12018-06-17 14:51:59 +0300129 * Fix compilation error when MBEDTLS_ARC4_C is disabled and
130 MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
Simon Butcher7924d932018-07-19 19:54:18 +0100131 * Added length checks to some TLS parsing functions. Found and fixed by
132 Philippe Antoine from Catena cyber. #1663.
Ron Eldor612a6002017-10-01 17:11:54 +0300133 * Fix namespacing in header files. Remove the `mbedtls` namespacing in
Ron Eldordf9b93e2017-05-14 16:17:33 +0300134 the `#include` in the header files. Resolves #857
Simon Butcherc6a0fd82018-07-24 10:03:41 +0100135 * Fix compiler warning of 'use before initialisation' in
136 mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid
137 Drozd. #1098
Simon Butchera8ee41c2018-07-24 12:59:21 +0100138 * Fix decryption for zero length messages (which contain all padding) when a
139 CBC based ciphersuite is used together with Encrypt-then-MAC. Previously,
140 such a message was wrongly reported as an invalid record and therefore lead
141 to the connection being terminated. Seen most often with OpenSSL using
142 TLS 1.0. Reported by @kFYatek and by Conor Murphy on the forum. Fix
143 contributed by Espressif Systems. Fixes #1632
Andres Amaya Garcia8e346dc2018-07-04 10:01:39 +0100144 * Fix ssl_client2 example to send application data with 0-length content
145 when the request_size argument is set to 0 as stated in the documentation.
146 Fixes #1833.
Simon Butchera6462192018-07-25 17:30:20 +0100147 * Correct the documentation for `mbedtls_ssl_get_session()`. This API has
148 deep copy of the session, and the peer certificate is not lost. Fixes #926.
Simon Butcherf15cfd52018-06-27 11:05:44 +0100149
Simon Butchera063fff2018-07-10 15:20:26 +0100150Changes
Simon Butchera6462192018-07-25 17:30:20 +0100151 * Fail when receiving a TLS alert message with an invalid length, or invalid
152 zero-length messages when using TLS 1.2. Contributed by Espressif Systems.
Simon Butchera063fff2018-07-10 15:20:26 +0100153 * Change the shebang line in Perl scripts to look up perl in the PATH.
154 Contributed by fbrosson in #1533.
155
Simon Butcher662ae9e2018-06-18 14:42:14 +0100156= mbed TLS 2.7.4 branch released 2018-06-18
Moran Peker9259b3b2018-02-25 13:29:03 +0200157
158Bugfix
159 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
160 TrinityTonic. #1359.
Simon Butcher4e5edf32018-06-08 16:23:17 +0100161 * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
162 used by user applications. Found and fixed by Fabio Alessandrelli.
Darryl Green68207f82017-11-27 17:12:14 +0000163 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
Simon Butcherd8ea8d42018-06-01 19:11:55 +0100164 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
165 build to fail. Found by zv-io. Fixes #1651.
Simon Butcher49de6b82018-06-14 08:58:59 +0100166 * Fix compilation warnings with IAR toolchain, on 32 bit platform.
167 Reported by rahmanih in #683
Moran Peker9259b3b2018-02-25 13:29:03 +0200168
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100169Changes
170 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Simon Butchera96b9d42018-06-12 17:42:02 +0100171 * Changed CMake defaults for IAR to treat all compiler warnings as errors.
Simon Butcher02582b22018-06-18 11:56:13 +0100172 * Changed the Clang parameters used in the CMake build files to work for
173 versions later than 3.6. Versions of Clang earlier than this may no longer
174 work. Fixes #1072
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100175
Jaeden Amero1fc4d332018-04-27 13:15:45 +0100176= mbed TLS 2.7.3 branch released 2018-04-30
Andres AGee7157e2016-12-07 10:25:19 +0000177
Hanno Becker9a37e0f2017-09-25 10:51:32 +0100178Security
Simon Butcher88cc9412018-04-30 17:23:00 +0100179 * Fix an issue in the X.509 module which could lead to a buffer overread
180 during certificate validation. Additionally, the issue could also lead to
181 unnecessary callback checks being made or to some validation checks to be
182 omitted. The overread could be triggered remotely, while the other issues
183 would require a non DER-compliant certificate to be correctly signed by a
184 trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
185 luocm. Fixes #825.
186 * Fix the buffer length assertion in the ssl_parse_certificate_request()
187 function which led to an arbitrary overread of the message buffer. The
188 overreads could be caused by receiving a malformed message at the point
189 where an optional signature algorithms list is expected when the signature
190 algorithms section is too short. In builds with debug output, the overread
191 data is output with the debug data.
Andrzej Kurekef30d962018-04-25 05:29:00 -0400192 * Fix a client-side bug in the validation of the server's ciphersuite choice
Simon Butcher88cc9412018-04-30 17:23:00 +0100193 which could potentially lead to the client accepting a ciphersuite it didn't
194 offer or a ciphersuite that cannot be used with the TLS or DTLS version
195 chosen by the server. This could lead to corruption of internal data
196 structures for some configurations.
Hanno Becker9a37e0f2017-09-25 10:51:32 +0100197
Andres AGee7157e2016-12-07 10:25:19 +0000198Bugfix
Simon Butcher88cc9412018-04-30 17:23:00 +0100199 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
Gilles Peskine8980da52018-03-22 21:49:43 +0100200 contributed by Brian J Murray and David Brown.
Gilles Peskined4dc1a02018-03-23 01:42:44 +0100201 * Add missing dependencies in test suites that led to build failures
202 in configurations that omit certain hashes or public-key algorithms.
203 Fixes #1040.
Jaeden Amero5f97be62018-03-26 18:32:14 +0100204 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
205 #1353
Gilles Peskine1dc8e812018-03-27 23:08:53 +0200206 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
Simon Butcher88cc9412018-04-30 17:23:00 +0100207 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
208 Deomid Ryabkov. Fixes #1299, #1475.
209 * Fix the Makefile build process for building shared libraries on Mac OS X.
210 Fixed by mnacamura.
Jethro Beekman004e3712018-02-16 13:11:04 -0800211 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcher88cc9412018-04-30 17:23:00 +0100212 unable to parse keys which had only the optional parameters field of the
213 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
214 * Return the plaintext data more quickly on unpadded CBC decryption, as
215 stated in the mbedtls_cipher_update() documentation. Contributed by
216 Andy Leiserson.
Andrzej Kurekd9594922018-03-26 04:13:24 -0400217 * Fix overriding and ignoring return values when parsing and writing to
218 a file in pk_sign program. Found by kevlut in #1142.
Krzysztof Stachowiak7da50882018-04-04 13:47:40 +0200219 * Fix buffer length assertions in the ssl_parse_certificate_request()
220 function which leads to a potential one byte overread of the message
221 buffer.
Andrzej Kurekc3a3e2d2018-04-23 08:39:13 -0400222 * Fix invalid buffer sizes passed to zlib during record compression and
223 decompression.
Gilles Peskine8980da52018-03-22 21:49:43 +0100224
Gilles Peskine9b9cc612018-03-22 17:03:45 +0100225Changes
Simon Butcher88cc9412018-04-30 17:23:00 +0100226 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
227 independently by Matthieu Volat and Arne Schwabe.
Gilles Peskined4dc1a02018-03-23 01:42:44 +0100228 * Improve testing in configurations that omit certain hashes or
229 public-key algorithms. Includes contributions by Gert van Dijk.
230 * Improve negative testing of X.509 parsing.
Jaeden Ameroef59b732018-03-28 14:21:19 +0100231 * Do not define global mutexes around readdir() and gmtime() in
232 configurations where the feature is disabled. Found and fixed by Gergely
233 Budai.
Andres Amaya Garcia3b4d5c22018-03-27 21:19:50 +0100234 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
235 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
236 without PBES2. Fixed by Marcos Del Sol Vives.
Jaeden Amero0c692cd2018-03-29 11:02:52 +0100237 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
238 Krylov.
Darryl Green28448b22018-03-29 16:05:44 +0100239 * Improve the documentation of mbedtls_ssl_write(). Suggested by
240 Paul Sokolovsky in #1356.
Simon Butcher88cc9412018-04-30 17:23:00 +0100241 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garcia8ee21562018-03-27 19:14:24 +0100242 letter must not be prefixed by '-', such as LLVM. Found and fixed by
243 Alex Hixon.
Andres Amaya Garcia89320a42018-03-25 23:57:09 +0100244 * Allow configuring the shared library extension by setting the DLEXT
Andres Amaya Garcia8ee21562018-03-27 19:14:24 +0100245 environment variable when using the project makefiles.
Gilles Peskine1852d662018-04-04 10:19:24 +0200246 * In the SSL module, when f_send, f_recv or f_recv_timeout report
247 transmitting more than the required length, return an error. Raised by
Jaeden Amerob5f53b12018-04-03 12:09:45 +0100248 Sam O'Connor in #1245.
Jaeden Amerod8e0cec2018-04-03 18:27:54 +0100249 * Improve robustness of mbedtls_ssl_derive_keys against the use of
250 HMAC functions with non-HMAC ciphersuites. Independently contributed
251 by Jiayuan Chen in #1377. Fixes #1437.
Gilles Peskine9b9cc612018-03-22 17:03:45 +0100252
Jaeden Amero9ae1fba2018-03-16 16:30:17 +0000253= mbed TLS 2.7.2 branch released 2018-03-16
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200254
Gilles Peskine955d7042018-03-13 17:24:33 +0100255Security
256 * Verify results of RSA private key operations to defend
257 against Bellcore glitch attack.
Jaeden Amero8a032e62018-03-14 18:01:54 +0000258 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
259 a crash on invalid input.
260 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
261 crash on invalid input.
Manuel Pégourié-Gonnard5a9f46e2018-03-13 11:53:30 +0100262 * Fix CRL parsing to reject CRLs containing unsupported critical
263 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Gilles Peskine955d7042018-03-13 17:24:33 +0100264
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800265Features
266 * Extend PKCS#8 interface by introducing support for the entire SHA
267 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine60130042018-02-14 11:33:30 +0100268 This allows reading encrypted PEM files produced by software that
269 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
270 OpenVPN Inc. Fixes #1339
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800271
Gilles Peskine158fc332018-03-11 00:47:54 +0100272Bugfix
273 * Fix setting version TLSv1 as minimal version, even if TLS 1
274 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
275 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
276 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +0300277 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
278 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +0300279 Nick Wilson on issue #355
Gilles Peskine8eda5ec2018-03-11 00:21:32 +0100280 * In test_suite_pk, pass valid parameters when testing for hash length
281 overflow. #1179
Gilles Peskinec5671bd2018-03-12 23:44:56 +0100282 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
283 by Guido Vranken. #639
Jaeden Ameroc9908f02018-03-15 14:58:24 +0000284 * Log correct number of ciphersuites used in Client Hello message. #918
Andres Amaya Garcia32ec6d42017-08-25 17:17:34 +0100285 * Fix X509 CRT parsing that would potentially accept an invalid tag when
286 parsing the subject alternative names.
Jaeden Amero100273d2018-03-14 17:58:00 +0000287 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
288 that could cause a key exchange to fail on valid data.
289 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
290 could cause a key exchange to fail on valid data.
Jaeden Amero32ae73b2018-03-14 17:59:59 +0000291 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
292 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +0100293 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
294 Found through fuzz testing.
Gilles Peskine158fc332018-03-11 00:47:54 +0100295
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200296Changes
297 * Clarify the documentation of mbedtls_ssl_setup.
298
Jaeden Amero6a4e22c2018-02-23 11:31:04 +0000299= mbed TLS 2.7.1 branch released 2018-02-23
Gilles Peskine27b07542018-02-14 14:07:48 +0100300
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100301Default behavior changes
302 * The truncated HMAC extension now conforms to RFC 6066. This means
303 that when both sides of a TLS connection negotiate the truncated
304 HMAC extension, Mbed TLS can now interoperate with other
305 compliant implementations, but this breaks interoperability with
306 prior versions of Mbed TLS. To restore the old behavior, enable
307 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
308 config.h. Found by Andreas Walz (ivESK, Offenburg University of
309 Applied Sciences).
310
Hanno Becker7dc832b2017-11-16 17:39:34 +0000311Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100312 * Fix implementation of the truncated HMAC extension. The previous
313 implementation allowed an offline 2^80 brute force attack on the
314 HMAC key of a single, uninterrupted connection (with no
315 resumption of the session).
Hanno Becker7dc832b2017-11-16 17:39:34 +0000316
Gilles Peskine27b07542018-02-14 14:07:48 +0100317Bugfix
318 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
319 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +0100320 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +0200321 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
322 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskinef936cb12018-02-27 08:37:52 +0100323 In the context of SSL, this resulted in handshake failure. Reported by
324 daniel in the Mbed TLS forum. #1351
Jaeden Ameroa0d60a42018-02-21 13:32:39 +0000325 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskine27b07542018-02-14 14:07:48 +0100326
327Changes
328 * Fix tag lengths and value ranges in the documentation of CCM encryption.
329 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +0100330 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskine49451922018-02-21 17:59:40 +0100331 * MD functions deprecated in 2.7.0 are no longer inline, to provide
332 a migration path for those depending on the library's ABI.
Gilles Peskine27b07542018-02-14 14:07:48 +0100333
Simon Butcher55fc4e02018-02-05 01:09:13 +0000334= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100335
Gilles Peskine28a0c722017-10-17 19:01:38 +0200336Security
Simon Butcher55fc4e02018-02-05 01:09:13 +0000337 * Fix a heap corruption issue in the implementation of the truncated HMAC
338 extension. When the truncated HMAC extension is enabled and CBC is used,
339 sending a malicious application packet could be used to selectively corrupt
340 6 bytes on the peer's heap, which could potentially lead to crash or remote
341 code execution. The issue could be triggered remotely from either side in
342 both TLS and DTLS. CVE-2018-0488
343 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
344 for the key size, which could potentially lead to crash or remote code
345 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
346 Qualcomm Technologies Inc. CVE-2018-0487
347 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
348 zeros.
349 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
350 64 KiB to the address of the SSL buffer and causing a wrap around.
351 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +0100352 default enabled) maximum fragment length extension is disabled in the
353 config and the application data buffer passed to mbedtls_ssl_write
354 is larger than the internal message buffer (16384 bytes by default), the
355 latter overflows. The exploitability of this issue depends on whether the
356 application layer can be forced into sending such large packets. The issue
357 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +0000358 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
359 Fixes #707.
360 * Add a provision to prevent compiler optimizations breaking the time
361 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +0100362 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +0100363 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +0300364 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
365 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +0100366 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
367 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000368 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
369 data. Previously, trailing zero bytes were detected and omitted for the
370 sake of saving memory, but potentially leading to slight timing
371 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +0100372 * Wipe stack buffer temporarily holding EC private exponent
373 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000374 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +0100375 (server-side). Could result in application crash, but only if an ALPN
376 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100377 * Change default choice of DHE parameters from untrustworthy RFC 5114
378 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
379 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +0200380
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200381Features
382 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +0100383 * The selftest program can execute a subset of the tests based on command
384 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +0200385 * New unit tests for timing. Improve the self-test to be more robust
386 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +0100387 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +0000388 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +0100389 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +0100390 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +0300391 * Add support for alternative implementations for ECDSA, controlled by new
392 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
393 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +0300394 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +0300395 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +0300396 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000397 * Add support for alternative implementation of ECDH, controlled by the
398 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +0300399 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +0300400 The following functions from the ECDH module can be replaced
401 with an alternative implementation:
402 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000403 * Add support for alternative implementation of ECJPAKE, controlled by
404 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000405 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +0200406
Hanno Beckera47023e2017-12-22 17:08:03 +0000407API Changes
408 * Extend RSA interface by multiple functions allowing structure-
409 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +0000410 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +0000411 up RSA contexts from partial key material and having them completed to the
412 needs of the implementation automatically. This allows to setup private RSA
413 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
414 purpose or CRT and/or blinding.
415 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
416 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100417 * The following functions in the message digest modules (MD2, MD4, MD5,
418 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
419 The new functions change the return type from void to int to allow
420 returning error codes when using MBEDTLS_<MODULE>_ALT.
421 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
422 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
423 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100424 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200425
Ron Eldor73a38172017-10-03 15:58:26 +0300426New deprecations
427 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000428 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100429 * Direct manipulation of structure fields of RSA contexts is deprecated.
430 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000431 * Deprecate usage of message digest functions that return void
432 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
433 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
434 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
435 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100436 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
437 parameters from RFC 3526 or the newly added parameters from RFC 7919.
438 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
439 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
440 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000441 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
442 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100443 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100444
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100445Bugfix
446 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
447 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100448 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
449 Found by projectgus and jethrogb, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100450 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300451 * Parse signature algorithm extension when renegotiating. Previously,
452 renegotiated handshakes would only accept signatures using SHA-1
453 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000454 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
455 dates on leap years with 100 and 400 intervals are handled correctly. Found
456 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200457 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
458 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100459 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
460 Found independently by Florian in the mbed TLS forum and by Mishamax.
461 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100462 * Fix variable used before assignment compilation warnings with IAR
463 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000464 * Fix unchecked return codes from AES, DES and 3DES functions in
465 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
466 If a call to one of the functions of the cryptographic primitive modules
467 failed, the error may not be noticed by the function
468 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
469 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100470 * Include configuration file in md.h, to fix compilation warnings.
471 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100472 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
473 writing routines that prevented these functions to work with alternative
474 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100475 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
476 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100477 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000478 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100479 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000480 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100481 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000482 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000483 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100484 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100485 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100486 * Add size-checks for record and handshake message content, securing
487 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300488 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
489 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +0100490 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000491 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100492 * Fix possible memory leaks in mbedtls_gcm_self_test().
493 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +0000494 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
495 RSA test suite where the failure of CTR DRBG initialization lead to
496 freeing an RSA context and several MPI's without proper initialization
497 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +0100498 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +0100499 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
500 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000501 * Fix an issue in the cipher decryption with the mode
502 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
503 Note, this padding mode is not used by the TLS protocol. Found and fixed by
504 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +0100505 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
506 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
507 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
508 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +0100509 structure. Do not assume that zeroizing a context is a correct way to
510 reset it. Found independently by ccli8 on Github.
511 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000512 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
513 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +0100514
515Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +0000516 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +0100517 and the message digest. Further, allow enabling/disabling of authority
518 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +0000519 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
520 particular, don't require P,Q if neither CRT nor blinding are
521 used. Reported and fix proposed independently by satur9nine and sliai
522 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100523 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +0100524 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
525 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +0100526 * Update all internal usage of deprecated message digest functions to the
527 new ones with return codes. In particular, this modifies the
528 mbedtls_md_info_t structure. Propagate errors from these functions
529 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +0000530 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +0100531 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
532 modules where the software implementation can be replaced by a hardware
533 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +0100534 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
535 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100536
Simon Butcher72ea31b2017-08-10 11:51:16 +0100537= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +0200538
Simon Butcherb060cc22017-07-28 01:04:34 +0100539Security
Simon Butcher01971d02017-08-10 10:48:01 +0100540 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherb060cc22017-07-28 01:04:34 +0100541 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
542 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +0100543 (default: 8) intermediates, even when it was not trusted. This could be
544 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +0100545 (the default), the handshake was correctly aborted).
546 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +0100547 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
548 Found by Laurent Simon.
Simon Butcherb060cc22017-07-28 01:04:34 +0100549
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100550Features
551 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia052ac862017-07-12 11:27:05 +0100552 and the context struct mbedtls_platform_context to perform
553 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia586d3772017-07-18 10:24:26 +0100554 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +0100555 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +0100556 some embedded environments to provide a means of initialising underlying
557 cryptographic acceleration hardware.
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100558
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200559API Changes
560 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
561 API consistent with mbed TLS 2.5.0. Specifically removed the inline
562 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +0100563 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
564 by James Cowgill. #978
Simon Butcherb060cc22017-07-28 01:04:34 +0100565 * Certificate verification functions now set flags to -1 in case the full
566 chain was not verified due to an internal error (including in the verify
567 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +0100568 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherb060cc22017-07-28 01:04:34 +0100569 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +0100570 a fatal error in the verify callback.
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200571
Ron Eldor5a21fd62016-12-16 16:15:56 +0200572Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +0100573 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
574 Reported by roberto. #716
575 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor8ab05952017-01-09 19:27:59 +0200576 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +0100577 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +0100578 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
579 in the case of an error. Found by redplait. #590
Ron Eldor7269fee2017-01-12 14:50:50 +0200580 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100581 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciaaa27dfe2017-05-04 11:05:55 +0100582 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
583 compilation when using ARM Compiler 6.
Simon Butcher00d3cc62017-07-26 17:25:55 +0100584 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100585 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher00d3cc62017-07-26 17:25:55 +0100586 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
587 KNOX Security, Samsung Research America
Andres AG2e3ddfa2017-02-17 13:54:43 +0000588 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100589 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e3ddfa2017-02-17 13:54:43 +0000590 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
591 KNOX Security, Samsung Research America
Simon Butcher00d3cc62017-07-26 17:25:55 +0100592 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100593 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher00d3cc62017-07-26 17:25:55 +0100594 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +0100595 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +0100596 function mbedtls_time() instead. Found by wairua. #666
597 * Avoid shadowing of time and index functions through mbed TLS function
598 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +0200599
Janos Follathbfea4a72017-06-22 10:02:07 +0100600Changes
Janos Follath32529402017-06-22 10:02:07 +0100601 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +0100602 64-bit division. This is useful on embedded platforms where 64-bit division
603 created a dependency on external libraries. #708
Janos Follathbfea4a72017-06-22 10:02:07 +0100604 * Removed mutexes from ECP hardware accelerator code. Now all hardware
605 accelerator code in the library leaves concurrency handling to the
606 platform. Reported by Steven Cooreman. #863
Andres Amaya Garcia92fcfe22017-06-26 12:57:44 +0100607 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
608 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100609 * Added a test script that can be hooked into git that verifies commits
610 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +0100611 * Improve documentation of PKCS1 decryption functions.
Janos Follathbfea4a72017-06-22 10:02:07 +0100612
Simon Butcherf2a597f2017-06-20 23:08:10 +0100613= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +0100614
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200615Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +0100616 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
617 The issue could only happen client-side with renegotiation enabled.
618 Could result in DoS (application crash) or information leak
619 (if the application layer sent data read from mbedtls_ssl_read()
620 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +0200621 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
622 certificate verification. SHA-1 can be turned back on with a compile-time
623 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +0200624 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
625 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +0200626 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
627 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200628
Hanno Beckereccf60c2017-06-05 15:19:01 +0100629Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +0100630 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
631 valid C and they prevented the test from compiling in Visual Studio 2015
632 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +0100633 * Fix insufficient support for signature-hash-algorithm extension,
634 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +0100635 * Fix behaviour that hid the original cause of fatal alerts in some cases
636 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +0200637 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100638 * Fix SSLv3 renegotiation behaviour and stop processing data received from
639 peer after sending a fatal alert to refuse a renegotiation attempt.
640 Previous behaviour was to keep processing data even after the alert has
641 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +0100642 * Accept empty trusted CA chain in authentication mode
643 MBEDTLS_SSL_VERIFY_OPTIONAL.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100644 Found by jethrogb. #864
645 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
646 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
647 reflect bad EC curves within verification result.
648 * Fix bug that caused the modular inversion function to accept the invalid
649 modulus 1 and therefore to hang. Found by blaufish. #641.
650 * Fix incorrect sign computation in modular exponentiation when the base is
651 a negative MPI. Previously the result was always negative. Found by Guido
652 Vranken.
653 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
654 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +0200655
Gilles Peskine36091fe2017-05-03 16:55:03 +0200656Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +0100657 * Send fatal alerts in more cases. The previous behaviour was to skip
658 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +0000659 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +0100660 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +0000661 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +0200662
Simon Butcher9f770172017-05-15 15:13:59 +0100663= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100664
Janos Follath45182a02017-03-23 10:41:56 +0000665Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +0100666 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +0100667 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
668 Simon.
Janos Follath45182a02017-03-23 10:41:56 +0000669 * Add exponent blinding to RSA private operations as a countermeasure
670 against side-channel attacks like the cache attack described in
671 https://arxiv.org/abs/1702.08719v2.
672 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
673 Clémentine Maurice and Stefan Mangard.
674
Simon Butcher4775e832017-05-13 22:56:08 +0100675Features
Janos Follath5a1c0e72017-06-16 09:00:07 +0100676 * Add hardware acceleration support for the Elliptic Curve Point module.
677 This involved exposing parts of the internal interface to enable
678 replacing the core functions and adding and alternative, module level
679 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +0100680 * Add a new configuration option to 'mbedtls_ssl_config' to enable
681 suppressing the CA list in Certificate Request messages. The default
682 behaviour has not changed, namely every configured CAs name is included.
683
Andres AGf5bf7182017-03-03 14:09:56 +0000684API Changes
685 * The following functions in the AES module have been deprecated and replaced
686 by the functions shown below. The new functions change the return type from
687 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
688 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
689 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
690 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
691
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100692Bugfix
693 * Remove macros from compat-1.3.h that correspond to deleted items from most
694 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100695 * Fixed issue in the Threading module that prevented mutexes from
696 initialising. Found by sznaider. #667 #843
697 * Add checks in the PK module for the RSA functions on 64-bit systems.
698 The PK and RSA modules use different types for passing hash length and
699 without these checks the type cast could lead to data loss. Found by Guido
700 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100701
Simon Butcherb65c2be2017-03-10 18:50:44 +0000702= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +0100703
Janos Follath182013f2016-10-25 10:50:22 +0100704Security
Simon Butcherb65c2be2017-03-10 18:50:44 +0000705 * Add checks to prevent signature forgeries for very large messages while
706 using RSA through the PK module in 64-bit systems. The issue was caused by
707 some data loss when casting a size_t to an unsigned int value in the
708 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
709 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +0000710 * Fixed potential livelock during the parsing of a CRL in PEM format in
711 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
712 characters after the footer could result in the execution of an infinite
713 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
714 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +0100715 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
716 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +0000717 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +0000718 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
719 when verifying the validity of a key on secp224k1. This could be
720 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +0000721 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +0000722 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
723 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +0000724
Andres AG703990b2016-10-24 11:23:36 +0100725Bugfix
Andres AGd1650662016-12-09 17:26:23 +0000726 * Fix output certificate verification flags set by x509_crt_verify_top() when
727 traversing a chain of trusted CA. The issue would cause both flags,
728 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
729 set when the verification conditions are not met regardless of the cause.
730 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +0000731 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
732 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
733 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +0000734 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
735 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +0000736 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +0000737 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
738 would compare 64 bits of the record counter instead of 48 bits as indicated
739 in RFC 6347 Section 4.3.1. This could cause the execution of the
740 renegotiation routines at unexpected times when the protocol is DTLS. Found
741 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +0100742 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +0100743 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +0100744 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +0000745 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
746 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
747 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
748 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
749 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
750 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +0000751 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
752 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +0000753 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
754 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +0000755 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
756 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +0000757 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
758 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +0000759 * Fixed the templates used to generate project and solution files for Visual
760 Studio 2015 as well as the files themselves, to remove a build warning
761 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +0200762 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
763 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +0000764 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
765 number to write in hexadecimal is negative and requires an odd number of
766 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +0000767 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
768 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +0100769
Janos Follath4c006cd2016-12-13 14:14:03 +0000770= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +0000771
772Changes
773 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
774 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
775 Authentication – October 2016
776
Simon Butcher19dbd412016-10-16 19:35:49 +0100777= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +0300778
Andres AG60dbc932016-09-02 15:23:48 +0100779Security
Simon Butcheref8fa012016-10-16 00:44:08 +0100780 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
781 with RFC-5116 and could lead to session key recovery in very long TLS
782 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
783 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
784 https://eprint.iacr.org/2016/475.pdf
785 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +0100786 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +0100787 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +0100788 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +0100789
Simon Butchercf8c1f42016-09-02 21:29:39 +0300790Features
Simon Butcher21c54812016-10-05 14:17:37 +0100791 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
792 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300793 * Added hardware entropy selftest to verify that the hardware entropy source
794 is functioning correctly.
795 * Added a script to print build environment info for diagnostic use in test
796 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +0100797 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
798 configure the maximum length of a file path that can be buffered when
799 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +0100800 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +0100801 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +0100802 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
803 to configure the minimum number of bytes for entropy sources using the
804 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300805
806Bugfix
807 * Fix for platform time abstraction to avoid dependency issues where a build
808 may need time but not the standard C library abstraction, and added
809 configuration consistency checks to check_config.h
810 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +0100811 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
812 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +0300813 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
814 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +0300815 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
816 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +0100817 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +0100818 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +0100819 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +0100820 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +0100821 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +0100822 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +0100823 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
824 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
825 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +0100826 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
827 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +0100828 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +0100829 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +0100830 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +0100831 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +0100832 * Fix potential byte overread when verifying malformed SERVER_HELLO in
833 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +0100834 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +0100835 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +0100836 * Fix compatibility issue with Internet Explorer client authentication,
837 where the limited hash choices prevented the client from sending its
838 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +0100839 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300840
841Changes
842 * Extended test coverage of special cases, and added new timing test suite.
843 * Removed self-tests from the basic-built-test.sh script, and added all
844 missing self-tests to the test suites, to ensure self-tests are only
845 executed once.
846 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
847 * Added support for a Yotta specific configuration file -
848 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +0100849 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +0100850 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +0100851 * Renamed source file library/net.c to library/net_sockets.c to avoid
852 naming collision in projects which also have files with the common name
853 net.c. For consistency, the corresponding header file, net.h, is marked as
854 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +0100855 * Changed the strategy for X.509 certificate parsing and validation, to no
856 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300857
Simon Butcher46125fb2016-06-27 19:43:55 +0100858= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100859
Janos Follathcc4eba72016-02-10 16:25:55 +0000860Security
Janos Follathe43b81a2016-02-10 16:25:55 +0000861 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +0000862 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +0000863 * Fix potential integer overflow to buffer overflow in
864 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +0100865 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +0100866 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +0000867 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
868 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +0000869
Simon Butcher3fe6cd32016-04-26 19:51:29 +0100870Features
871 * Support for platform abstraction of the standard C library time()
872 function.
873
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100874Bugfix
875 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
876 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100877 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +0000878 * Fix potential build failures related to the 'apidoc' target, introduced
879 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100880 * Fix issue in Makefile that prevented building using armar. #386
Janos Follath4ae5c292016-02-10 11:27:43 +0000881 * Fix memory leak that occured only when ECJPAKE was enabled and ECDHE and
882 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +0000883 * Fix an issue that caused valid certificates to be rejected whenever an
884 expired or not yet valid certificate was parsed before a valid certificate
885 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +0100886 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +0000887 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +0100888 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +0000889 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
890 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +0100891 * Fix issue that caused a crash if invalid curves were passed to
892 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +0100893 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +0100894 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +0100895 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +0100896 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100897
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +0100898Changes
899 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
900 don't use the optimized assembly for bignum multiplication. This removes
901 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +0100902 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +0100903 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
904 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +0100905 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
906 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +0100907
908= mbed TLS 2.2.1 released 2016-01-05
909
910Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +0100911 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +0100912 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +0000913 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +0100914 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
915 SLOTH attack on TLS 1.2 server authentication (other attacks from the
916 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +0100917 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +0000918
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +0100919Bugfix
920 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
921 * Fix bug in certificate validation that caused valid chains to be rejected
922 when the first intermediate certificate has pathLenConstraint=0. Found by
923 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +0000924 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +0000925 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +0100926 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100927 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +0200928 datagram if a single record in a datagram is unexpected, instead only
929 drop the record and look at subsequent records (if any are present) in
930 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +0200931
932= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +0000933
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +0200934Security
935 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
936 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +0000937 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100938 * Fix potential heap corruption on Windows when
939 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
940 triggered remotely. Found by Guido Vranken, Intelworks.
941 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +0200942 Cannot be triggered remotely unless you create X.509 certificates based
943 on untrusted input or write keys of untrusted origin. Found by Guido
944 Vranken, Intelworks.
945 * The X509 max_pathlen constraint was not enforced on intermediate
946 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +0200947 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100948
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100949Features
950 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
951 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100952 * Added a key extraction callback to accees the master secret and key
953 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +0200954
955Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +0000956 * Self-signed certificates were not excluded from pathlen counting,
957 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +0200958 provided by Janos Follath. #319
959 * Fix build error with configurations where ECDHE-PSK is the only key
960 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +0000961 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +0200962 ECHD-ECDSA if the only key exchange. Multiple reports. #310
963 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +0200964 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +0900965 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
966 size/curve against the profile. Before that, there was no way to set a
967 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +0000968 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +0100969 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
970 Found by Kurt Danielson. #292
971 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100972 * Fix bug in ASN.1 encoding of booleans that caused generated CA
973 certificates to be rejected by some applications, including OS X
974 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +0100975
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +0100976Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +0100977 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
978 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +0100979
980= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +0100981
982Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +0200983 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
984 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +0100985 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +0200986 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +0100987 once in the same handhake and mbedtls_ssl_conf_psk() was used.
988 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
989 remotely.
990 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +0100991 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +0100992 Found by Guido Vranken, Intelworks. Not triggerable remotely.
993 * Fix potential buffer overflow in mbedtls_mpi_read_string().
994 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
995 of TLS, but might be in other uses. On 32 bit machines, requires reading a
996 string of close to or larger than 1GB to exploit; on 64 bit machines, would
997 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +0200998 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +0100999 on crafted PEM input data. Found and fix provided by Guido Vranken,
1000 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +02001001 accept PEM data from an untrusted source.
1002 * Fix possible heap buffer overflow in base64_encoded() when the input
1003 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +01001004 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +01001005 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001006 the same mbedtls_ssl_config object and memory allocation fails. Found by
1007 Guido Vranken, Intelworks. Cannot be forced remotely.
1008 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +01001009 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001010 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +01001011 Found by Guido Vranken, Intelworks.
1012
1013Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +01001014 * Fix compile error in net.c with musl libc. Found and patch provided by
1015 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +01001016 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +01001017
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001018Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001019 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
1020 domain names are compliant with RFC 1035.
1021 * Fixed paths for check_config.h in example config files. (Found by bachp)
1022 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001023
1024= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001025
1026Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001027 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +01001028 signatures. (Found by Florian Weimer, Red Hat.)
1029 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +02001030 * Fix possible client-side NULL pointer dereference (read) when the client
1031 tries to continue the handshake after it failed (a misuse of the API).
1032 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +01001033 afl-fuzz.)
1034
1035Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +02001036 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
1037 * Fix off-by-one error in parsing Supported Point Format extension that
1038 caused some handshakes to fail.
1039
1040Changes
1041 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
1042 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +01001043 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001044 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001045 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001046 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +02001047 detected and mbedtls_ssl_read() will return
1048 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001049 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001050
1051= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +02001052
1053Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +02001054 * Added support for yotta as a build system.
1055 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001056
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +02001057Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001058 * Fix segfault in the benchmark program when benchmarking DHM.
1059 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +02001060 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +02001061 * Fix bug when parsing a ServerHello without extensions (found by David
1062 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +02001063 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
1064 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +02001065 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
1066 installed (found by Rawi666).
1067 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +02001068 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +02001069 (found by robotanarchy) (#232).
1070 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +02001071 tests (found by robotanarchy) (#232).
1072 * Fix missing -static-libgcc when building shared libraries for Windows
1073 with make.
Simon Butcher52754592015-09-03 13:06:01 +01001074 * Fix link error when building shared libraries for Windows with make.
1075 * Fix error when loading libmbedtls.so.
1076 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
1077 be always used (found by dcb314) (#235)
1078 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
1079 result trying to unlock an unlocked mutex on invalid input (found by
1080 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001081 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +02001082 * Fix memory corruption on client with overlong PSK identity, around
1083 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001084 Aleksandrs Saveljevs) (#238)
1085 * Fix unused function warning when using MBEDTLS_MDx_ALT or
1086 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +02001087 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
1088
1089Changes
Simon Butcher52754592015-09-03 13:06:01 +01001090 * The PEM parser now accepts a trailing space at end of lines (#226).
1091 * It is now possible to #include a user-provided configuration file at the
1092 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
1093 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001094 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +01001095 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +01001096 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001097 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001098 Hugo Leisink) (#210).
1099 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
1100 length.
1101
1102= mbed TLS 2.0.0 released 2015-07-13
1103
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001104Features
1105 * Support for DTLS 1.0 and 1.2 (RFC 6347).
1106 * Ability to override core functions from MDx, SHAx, AES and DES modules
1107 with custom implementation (eg hardware accelerated), complementing the
1108 ability to override the whole module.
1109 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +02001110 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001111 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +02001112 which algorithms and key sizes (curves for ECDSA) are acceptable.
1113 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001114 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001115 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001116 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001117
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +02001118API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +02001119 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
1120 You now need to link to all of them if you use TLS for example.
1121 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001122 Some names have been further changed to make them more consistent.
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001123 Migration helpers scripts/rename.pl and include/mbedlts/compat-1.3.h are
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001124 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001125 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +02001126 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001127 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +02001128 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001129 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
1130 * The following _init() functions that could return errors have
Tillmann Karras588ad502015-09-25 04:27:22 +02001131 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001132 should generally be the first function called on this context after init:
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001133 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001134 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
1135 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
1136 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
1137 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001138 Note that for mbedtls_ssl_setup(), you need to be done setting up the
1139 ssl_config structure before calling it.
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001140 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
1141 ssl_set_session() and ssl_set_client_transport_id(), plus
1142 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
1143 (see rename.pl and compat-1.3.h above) and their first argument's type
1144 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001145 * ssl_set_bio() changed signature (contexts merged, order switched, one
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01001146 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001147 * The following functions have been introduced and must be used in callback
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01001148 implementations (SNI, PSK) instead of their *conf counterparts:
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001149 mbedtls_ssl_set_hs_own_cert()
1150 mbedtls_ssl_set_hs_ca_chain()
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02001151 mbedtls_ssl_set_hs_psk()
1152 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001153 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001154 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001155 pointer, parameters reordered).
1156 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
1157 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001158 * The SSL debug callback gained two new arguments (file name, line number).
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001159 * Debug modes were removed.
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01001160 * mbedtls_ssl_conf_truncated_hmac() now returns void.
1161 * mbedtls_memory_buffer_alloc_init() now returns void.
1162 * X.509 verification flags are now an uint32_t. Affect the signature of:
1163 mbedtls_ssl_get_verify_result()
1164 mbedtls_x509_ctr_verify_info()
1165 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02001166 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
1167 * The following functions changed prototype to avoid an in-out length
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02001168 parameter:
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02001169 mbedtls_base64_encode()
1170 mbedtls_base64_decode()
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02001171 mbedtls_mpi_write_string()
1172 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02001173 * In the NET module, all "int" and "int *" arguments for file descriptors
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02001174 changed type to "mbedtls_net_context *".
1175 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01001176 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
1177 return void.
1178 * ecdsa_write_signature() gained an addtional md_alg argument and
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01001179 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02001180 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
1181 * Last argument of x509_crt_check_key_usage() and
1182 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00001183 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02001184 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
1185 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02001186 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001187 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
1188 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02001189 length parameter to include the terminating null byte for PEM input.
1190 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001191 * calloc() is now used instead of malloc() everywhere. API of platform
1192 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02001193 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001194 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
1195 (support for renegotiation now needs explicit enabling in config.h).
1196 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001197 in config.h
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02001198 * net_connect() and net_bind() have a new 'proto' argument to choose
1199 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02001200 Their 'port' argument type is changed to a string.
1201 * Some constness fixes
1202
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02001203Removals
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02001204 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001205 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
1206 mbedtls_ecp_muladd().
1207 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
1208 (use generic functions from md.h)
1209 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
1210 waiting function.
1211 * Removed test DHM parameters from the test certs module.
1212 * Removed the PBKDF2 module (use PKCS5).
1213 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
1214 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
1215 * Removed openssl.h (very partial OpenSSL compatibility layer).
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001216 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
1217 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
1218 been removed (compiler is required to support 32-bit operations).
1219 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001220 * Removed test program o_p_test, the script compat.sh does more.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001221 * Removed test program ssl_test, superseded by ssl-opt.sh.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001222 * Removed helper script active-config.pl
1223
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02001224New deprecations
1225 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001226 argument (allowing memory savings if HMAC is not used)
1227
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01001228Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001229 * Renamed a few headers to include _internal in the name. Those headers are
1230 not supposed to be included by users.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001231 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001232 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02001233 * Changed cipher_base_t into an opaque structure.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001234 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
1235 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001236 * Removed r and s from ecdsa_context
1237 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01001238
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02001239Default behavior changes
1240 * The default minimum TLS version is now TLS 1.0.
1241 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01001242 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001243 * Support for receiving SSLv2 ClientHello is now disabled by default at
1244 compile time.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01001245 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02001246 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
1247 enabled in the default configuration, this is only noticeable if using a
1248 custom config.h
1249 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
1250 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
1251 chain verification.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001252 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001253 * The following functions are now case-sensitive:
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001254 mbedtls_cipher_info_from_string()
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001255 mbedtls_ecp_curve_info_from_name()
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001256 mbedtls_md_info_from_string()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001257 mbedtls_ssl_ciphersuite_from_string()
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001258 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001259
1260Requirement changes
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001261 * The minimum MSVC version required is now 2010 (better C99 support).
1262 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
1263 * Compiler is required to support C99 types such as long long and uint32_t.
1264
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02001265API changes from the 1.4 preview branch
1266 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
1267 new prototype, and mbedtls_ssl_set_read_timeout().
1268 * The following functions now return void:
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02001269 mbedtls_ssl_conf_transport()
1270 mbedtls_ssl_conf_max_version()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001271 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001272 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
1273 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
1274 an example implementation, see mbedtls_timing_delay_context and
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001275 mbedtls_timing_set/get_delay().
1276 * With UDP sockets, it is no longer necessary to call net_bind() again
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001277 after a successful net_accept().
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001278
1279Changes
1280 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02001281 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01001282 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
1283 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02001284
1285= mbed TLS 1.3 branch
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001286
1287Security
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02001288 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
1289 extendedKeyUsage on the leaf certificate was lost (results not accessible
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02001290 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02001291 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02001292 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01001293
1294Features
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001295 * Improve ECC performance by using more efficient doubling formulas
1296 (contributed by Peter Dettman).
1297 * Add x509_crt_verify_info() to display certificate verification results.
1298 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00001299 (contributed by Daniel Kahn Gillmor).
1300 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00001301 * Add support for id-at-uniqueIdentifier in X.509 names.
1302 * Add support for overriding snprintf() (except on Windows) and exit() in
1303 the platform layer.
1304 * Add an option to use macros instead of function pointers in the platform
1305 layer (helps get rid of unwanted references).
1306 * Improved Makefiles for Windows targets by fixing library targets and making
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001307 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001308 * The benchmark program also prints heap usage for public-key primitives
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001309 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001310 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001311 speed and RAM (heap only for now) usage.
1312 * New script memory.sh helps measuring the ROM and RAM requirements of two
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01001313 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01001314 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001315 warnings on use of deprecated functions (with GCC and Clang only).
1316 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001317 errors on use of deprecated functions.
1318
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001319Bugfix
1320 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001321 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
1322 * Fix bug in entropy.c when THREADING_C is also enabled that caused
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001323 entropy_free() to crash (thanks to Rafał Przywara).
1324 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001325 once on the same context.
1326 * Fix bug in ssl_mail_client when password is longer that username (found
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001327 by Bruno Pape).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001328 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1329 (detected by Clang's 3.6 UBSan).
1330 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001331 initialized but not set (found by pravic).
1332 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001333 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001334 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001335 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1336 ssl_write() is called before the handshake is finished (introduced in
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001337 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001338 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1339 rejected.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001340 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001341 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
1342 * Fix hardclock() (only used in the benchmarking program) with some
1343 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001344 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001345 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1346 platforms.
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001347 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
1348 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001349 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1350 in 1.3.10).
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001351 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
1352 * Add missing dependency on SHA-256 in some x509 programs (reported by
1353 Gergely Budai).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001354 * Fix bug related to ssl_set_curves(): the client didn't check that the
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001355 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001356
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001357Changes
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001358 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1359 * Remove potential sources of timing variations (some contributed by Pascal
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001360 Junod).
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001361 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001362 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
1363 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001364 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
1365 more flexible (warning: OFLAGS is not used any more) (see the README)
1366 (contributed by Alon Bar-Lev).
1367 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001368 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001369 * Move from SHA-1 to SHA-256 in example programs using signatures
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001370 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001371 * Remove some unneeded inclusions of header files from the standard library
1372 "minimize" others (eg use stddef.h if only size_t is needed).
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001373 * Change #include lines in test files to use double quotes instead of angle
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001374 brackets for uniformity with the rest of the code.
1375 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001376
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001377= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001378Security
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001379 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001380 full and polarssl_free() is called (found by Mark Hasemeyer)
1381 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1382 not by default).
1383 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001384 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001385 client certificate) (found using Codenomicon Defensics).
1386 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1387 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001388 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001389 * Fix potential stack overflow while parsing crafted X.509 certificates
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001390 (TLS server is not affected if it doesn't ask for a client certificate)
1391 (found using Codenomicon Defensics).
1392 * Fix timing difference that could theoretically lead to a
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001393 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001394 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001395
1396Features
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001397 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001398 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
Paul Bakker6152b022015-04-14 15:00:09 +02001399 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001400 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001401 * Add x509_crl_parse_der().
1402 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001403 length of an X.509 verification chain.
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001404 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001405 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
1406 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001407 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001408 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1409 a compatible enough libc (eg uClibc).
1410 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001411 while using the default ciphersuite list.
1412 * Added new error codes and debug messages about selection of
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001413 ciphersuite/certificate.
1414
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001415Bugfix
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001416 * Stack buffer overflow if ctr_drbg_update() is called with too large
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001417 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1418 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001419 if memory_buffer_alloc_init() was called with buf not aligned and len not
1420 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001421 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001422 by Julian Ospald).
1423 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001424 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1425 multiple of 8 (found by Gergely Budai).
1426 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1427 Peter Vaskovic).
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001428 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1429 * ssl_get_verify_result() now works even if the handshake was aborted due
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001430 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001431 * Skip writing and parsing signature_algorithm extension if none of the
1432 key exchanges enabled needs certificates. This fixes a possible interop
1433 issue with some servers when a zero-length extension was sent. (Reported
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001434 by Peter Dettman.)
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001435 * On a 0-length input, base64_encode() did not correctly set output length
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001436 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001437
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001438Changes
1439 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
Paul Bakkere522d0f2015-01-14 16:12:48 +01001440 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001441 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001442 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001443 * Forbid repeated extensions in X.509 certificates.
1444 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001445 * A specific error is now returned when there are ciphersuites in common
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001446 but none of them is usable due to external factors such as no certificate
Paul Bakker9eac4f72014-10-20 13:56:15 +02001447 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001448 * It is now possible to disable negotiation of truncated HMAC server-side
1449 at runtime with ssl_set_truncated_hmac().
1450 * Example programs for SSL client and server now disable SSLv3 by default.
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001451 * Example programs for SSL client and server now disable RC4 by default.
Paul Bakkerb082bb52014-10-20 13:37:51 +02001452 * Use platform.h in all test suites and programs.
1453
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001454= PolarSSL 1.3.9 released 2014-10-20
Paul Bakkerb082bb52014-10-20 13:37:51 +02001455Security
1456 * Lowest common hash was selected from signature_algorithms extension in
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001457 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001458 * Remotely-triggerable memory leak when parsing some X.509 certificates
1459 (server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001460 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001461 * Remotely-triggerable memory leak when parsing crafted ClientHello
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001462 (not affected if ECC support was compiled out) (found using Codenomicon
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001463 Defensics).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001464
1465Bugfix
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001466 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001467 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
1468 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001469 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1470 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001471 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1472 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001473 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001474 * ssl_read() could return non-application data records on server while
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001475 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001476 * Server-initiated renegotiation would fail with non-blocking I/O if the
1477 write callback returned WANT_WRITE when requesting renegotiation.
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001478 * ssl_close_notify() could send more than one message in some circumstances
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001479 with non-blocking I/O.
1480 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1481 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001482 * Fix compile error with armcc in mpi_is_prime()
1483 * Fix potential bad read in parsing ServerHello (found by Adrien
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02001484 Vialletelle).
1485
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001486Changes
1487 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02001488 standard defining how to use SHA-2 with SSL 3.0).
1489 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02001490 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001491 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
1492 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001493 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
Paul Bakker1910aa72014-07-11 11:28:56 +02001494 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02001495 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
1496 RSA keys.
1497 * Accept spaces at end of line or end of buffer in base64_decode().
1498 * X.509 certificates with more than one AttributeTypeAndValue per
1499 RelativeDistinguishedName are not accepted any more.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001500
1501= PolarSSL 1.3.8 released 2014-07-11
1502Security
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02001503 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1504 It was possible to crash the server (and client) using crafted messages
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02001505 when a GCM suite was chosen.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02001506
1507Features
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02001508 * Add CCM module and cipher mode to Cipher Layer
1509 * Support for CCM and CCM_8 ciphersuites
Paul Bakker23647b42014-07-04 15:00:12 +02001510 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
1511 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02001512 * Blowfish in the cipher layer now supports variable length keys.
1513 * Add example config.h for PSK with CCM, optimized for low RAM usage.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001514 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Paul Bakker863989b2014-06-12 21:49:01 +02001515 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
1516 from the default list (inactive by default).
1517 * Add server-side enforcement of sent renegotiation requests
Paul Bakker34617722014-06-13 17:20:13 +02001518 (ssl_set_renegotiation_enforced())
1519 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02001520 ciphersuites to use and save some memory if the list is small.
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02001521
1522Changes
Paul Bakker28476e22014-07-01 15:59:04 +02001523 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
1524 required on some platforms (e.g. OpenBSD)
Paul Bakker863989b2014-06-12 21:49:01 +02001525 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
Paul Bakker5593f7c2014-05-06 10:29:28 +02001526 against unwanted compiler optimizations
1527 * md_list() now returns hashes strongest first
Paul Bakker1ebc0c52014-05-22 15:47:58 +02001528 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
Paul Bakkerdff31392014-05-22 15:06:41 +02001529 strongest offered by client.
Paul Bakker0f651c72014-05-22 15:12:19 +02001530 * All public contexts have _init() and _free() functions now for simpler
1531 usage pattern
Paul Bakker49033ba2014-06-12 21:46:13 +02001532
1533Bugfix
1534 * Fix in debug_print_msg()
1535 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakker3c38f292014-06-13 17:37:46 +02001536 * Remove less-than-zero checks on unsigned numbers
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001537 * Stricter check on SSL ClientHello internal sizes compared to actual packet
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02001538 size (found by TrustInSoft)
1539 * Fix WSAStartup() return value check (found by Peter Vaskovic)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001540 * Other minor issues (found by Peter Vaskovic)
1541 * Fix symlink command for cross compiling with CMake (found by Andre
1542 Heinecke)
1543 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02001544 * Very small records were incorrectly rejected when truncated HMAC was in
1545 use with some ciphersuites and versions (RC4 in all versions, CBC with
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02001546 versions < TLS 1.1).
1547 * Very large records using more than 224 bytes of padding were incorrectly
1548 rejected with CBC-based ciphersuites and TLS >= 1.1
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07001549 * Very large records using less padding could cause a buffer overread of up
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02001550 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
1551 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02001552 been removed in 1.3.6.)
1553 * Restore ability to locally trust a self-signed cert that is not a proper
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02001554 CA for use as an end entity certificate. (This had been removed in
1555 1.3.6.)
1556 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02001557 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
Paul Bakkerd5983182014-07-04 13:50:31 +02001558 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1559 * Fix off-by-one error in parsing Supported Point Format extension that
Paul Bakker6c343d72014-07-10 14:36:19 +02001560 caused some handshakes to fail.
1561 * Fix possible miscomputation of the premaster secret with DHE-PSK key
Paul Bakker5593f7c2014-05-06 10:29:28 +02001562 exchange that caused some handshakes to fail with other implementations.
Paul Bakker47431b62014-05-02 13:27:13 +02001563 (Failure rate <= 1/255 with common DHM moduli.)
Paul Bakkereaebbd52014-04-25 15:04:14 +02001564 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerc73079a2014-04-25 16:34:30 +02001565 * Fix base64_decode() to return and check length correctly (in case of
1566 tight buffers)
Paul Bakker0f90d7d2014-04-30 11:49:44 +02001567 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
1568 by Hui Dong)
Paul Bakker92478c32014-04-25 15:18:34 +02001569
Paul Bakker088c5c52014-04-25 11:11:10 +02001570= PolarSSL 1.3.7 released on 2014-05-02
1571Features
1572 * debug_set_log_mode() added to determine raw or full logging
Paul Bakker92478c32014-04-25 15:18:34 +02001573 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker63844402014-04-30 15:34:12 +02001574 * version_check_feature() added to check for compile-time options at
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02001575 run-time
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02001576
Paul Bakker088c5c52014-04-25 11:11:10 +02001577Changes
Paul Bakkere92f73d2014-04-18 14:08:26 +02001578 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
1579 checked and filled in the relevant module headers
1580 * Debug module only outputs full lines instead of parts
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02001581 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
1582 * AES-NI now compiles with "old" assemblers too
Paul Bakkerfdba4682014-04-25 11:48:35 +02001583 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker61885c72014-04-25 12:59:03 +02001584
1585Bugfix
Paul Bakkera7036632014-04-30 10:15:38 +02001586 * Only iterate over actual certificates in ssl_write_certificate_request()
1587 (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02001588 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
Paul Bakkerf96f7b62014-04-30 16:02:38 +02001589 Karger)
Paul Bakker33dc46b2014-04-30 16:11:39 +02001590 * cert_write app should use subject of issuer certificate as issuer of cert
1591 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02001592 ciphersuites, for full SSL frames of data.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02001593 * Improve interoperability by not writing extension length in ClientHello /
Markus Pfeiffera26a0052014-04-22 20:16:15 +00001594 ServerHello when no extensions are present (found by Matthew Page)
Barry K. Nathancf975f52014-04-23 17:40:25 -07001595 * rsa_check_pubkey() now allows an E up to N
1596 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakkere92f73d2014-04-18 14:08:26 +02001597 * mpi_fill_random() was creating numbers larger than requested on
Paul Bakker784b04f2014-04-11 15:33:59 +02001598 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001599 * Fix dependencies issues in X.509 test suite.
Paul Bakker27e36d32014-04-08 12:33:37 +02001600 * Some parts of ssl_tls.c were compiled even when the module was disabled.
1601 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Paul Bakker1cfc4582014-04-09 15:25:13 +02001602 * Fix detection of Clang on some Apple platforms with CMake
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001603 (found by Barry K. Nathan)
Paul Bakker59366212014-04-09 15:55:20 +02001604
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001605= PolarSSL 1.3.6 released on 2014-04-11
1606
Paul Bakker27e36d32014-04-08 12:33:37 +02001607Features
Paul Bakker4984d3c2014-04-04 15:39:37 +02001608 * Support for the ALPN SSL extension
1609 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02001610 * Enable verification of the keyUsage extension for CA and leaf
1611 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02001612 * Enable verification of the extendedKeyUsage extension
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02001613 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker4984d3c2014-04-04 15:39:37 +02001614
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001615Changes
1616 * x509_crt_info() now prints information about parsed extensions as well
1617 * pk_verify() now returns a specific error code when the signature is valid
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02001618 but shorter than the supplied length.
1619 * Use UTC time to check certificate validity.
1620 * Reject certificates with times not in UTC, per RFC 5280.
1621
Paul Bakker4224bc02014-04-08 14:36:50 +02001622Security
1623 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001624 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001625 * The notAfter date of some certificates was no longer checked since 1.3.5.
1626 This affects certificates in the user-supplied chain except the top
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01001627 certificate. If the user-supplied chain contains only one certificates,
Paul Bakker75a28602014-03-31 12:08:17 +02001628 it is not affected (ie, its notAfter date is properly checked).
1629 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02001630 TrustInSoft)
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02001631
1632Bugfix
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02001633 * The length of various ClientKeyExchange messages was not properly checked.
1634 * Some example server programs were not sending the close_notify alert.
Shuo Chen95a0d112014-04-04 21:04:40 -07001635 * Potential memory leak in mpi_exp_mod() when error occurs during
1636 calculation of RR.
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01001637 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
1638 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01001639 Gergely Budai).
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02001640 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
1641 (found by Gergely Budai)
Paul Bakker16300582014-04-11 13:28:43 +02001642 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
1643 Shuo Chen).
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02001644 * oid_get_numeric_string() used to truncate the output without returning an
1645 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001646 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Paul Bakker96d52652014-03-26 16:55:50 +01001647 * Calling pk_debug() on an RSA-alt key would segfault.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001648 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
1649 * Potential buffer overwrite in pem_write_buffer() because of low length
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001650 indication (found by Thijs Alkemade)
Paul Bakker6a28e722014-02-06 13:41:55 +01001651 * EC curves constants, which should be only in ROM since 1.3.3, were also
Paul Bakkerf2561b32014-02-06 15:11:55 +01001652 stored in RAM due to missing 'const's (found by Gergely Budai).
Paul Bakker2ceda572014-02-06 15:55:25 +01001653
1654= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001655Features
1656 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01001657 * Option to set the Curve preference order (disabled by default)
Paul Bakker66ff70d2014-03-26 11:54:05 +01001658 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakker6a28e722014-02-06 13:41:55 +01001659 * Ability to provide alternate timing implementation
1660 * Ability to force the entropy module to use SHA-256 as its basis
1661 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker47703a02014-02-06 15:01:20 +01001662 * Testing script ssl-opt.sh added for testing 'live' ssl option
1663 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01001664 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01001665 * Entropy module now supports seed writing and reading
1666
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001667Changes
1668 * Deprecated the Memory layer
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001669 * entropy_add_source(), entropy_update_manual() and entropy_gather()
Paul Bakker674e0b02014-03-26 13:26:52 +01001670 now thread-safe if POLARSSL_THREADING_C defined
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001671 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001672 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1673 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01001674 * Revamped the compat.sh interoperatibility script to include support for
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001675 testing against GnuTLS
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01001676 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01001677 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001678
Paul Bakker91c61bc2014-03-26 14:06:55 +01001679Security
1680 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001681 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001682 attack was already impossible when authentication is required).
1683 * Check notBefore timestamp of certificates and CRLs from the future.
1684 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001685 * Fixed possible buffer overflow with overlong PSK
Paul Bakkercd6d69a2014-02-06 15:43:21 +01001686 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01001687 TrustInSoft)
Paul Bakker3d52ab72014-03-07 10:33:55 +01001688
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01001689Bugfix
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01001690 * ecp_gen_keypair() does more tries to prevent failure because of
Alex Wilson73491422014-03-06 00:04:09 +10001691 statistics
1692 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001693 * Fixed testing with out-of-source builds using cmake
1694 * Fixed version-major intolerance in server
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01001695 * Fixed CMake symlinking on out-of-source builds
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001696 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001697 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001698 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01001699 Alex Wilson.)
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001700 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
Paul Bakker3d6504a2014-03-17 13:41:51 +01001701 * m_sleep() was sleeping twice too long on most Unix platforms.
1702 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakker77f4f392014-03-26 15:28:55 +01001703 send() would return an EAGAIN error when sending the ticket.
1704 * ssl_cache was leaking memory when reusing a timed out entry containing a
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01001705 client certificate.
Paul Bakker5fff23b2014-03-26 15:34:54 +01001706 * ssl_srv was leaking memory when client presented a timed out ticket
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001707 containing a client certificate
Paul Bakker2aca2412014-01-27 11:49:46 +01001708 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
Paul Bakker3eb96732014-01-22 13:08:19 +01001709 out_ctr failed
Paul Bakker0ac99ca2014-01-22 13:08:44 +01001710 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
Paul Bakker5862eee2014-01-22 14:18:03 +01001711 of one of them failed
Paul Bakker556efba2014-01-24 15:38:12 +01001712 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01001713 * x509_get_current_time() uses localtime_r() to prevent thread issues
Paul Bakker3eb96732014-01-22 13:08:19 +01001714
1715= PolarSSL 1.3.4 released on 2014-01-27
1716Features
1717 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakkerd75ba402014-01-24 16:11:17 +01001718 * Support for RIPEMD-160
Paul Bakkerb84582b2014-01-27 12:23:43 +01001719 * Support for AES CFB8 mode
1720 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01001721
1722Bugfix
1723 * Potential memory leak in bignum_selftest()
Paul Bakkerb84582b2014-01-27 12:23:43 +01001724 * Replaced expired test certificate
1725 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakker3eb96732014-01-22 13:08:19 +01001726 * net module handles timeouts on blocking sockets better (found by Tilman
Paul Bakker5bc07a32013-12-31 10:57:44 +01001727 Sauerbeck)
Paul Bakker014f1432013-12-02 14:54:01 +01001728 * Assembly format fixes in bn_mul.h
1729
Paul Bakker9dc53a92013-12-02 14:55:28 +01001730Security
1731 * Missing MPI_CHK calls added around unguarded mpi calls (found by
Paul Bakker48d78a52013-12-05 16:11:38 +01001732 TrustInSoft)
Paul Bakkerfdf94692013-12-17 13:09:31 +01001733
Paul Bakker5a607d22013-12-17 14:33:42 +01001734= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker23116fd2013-12-30 14:09:47 +01001735Features
Paul Bakkerf9c49532013-12-19 15:40:58 +01001736 * EC key generation support in gen_key app
Paul Bakker014f1432013-12-02 14:54:01 +01001737 * Support for adhering to client ciphersuite order preference
Paul Bakker7aa03752013-11-26 17:37:31 +01001738 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
1739 * Support for Curve25519
1740 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
1741 * Support for IPv6 in the NET module
Paul Bakkerc3d0d072013-12-02 14:50:49 +01001742 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakker4040d7e2013-12-02 14:52:57 +01001743 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakkerb14817d2013-12-02 22:03:23 +01001744
Paul Bakker5ab68ba2013-12-17 13:10:48 +01001745Changes
Paul Bakkerc7387912013-12-31 10:32:50 +01001746 * gen_prime() speedup
Paul Bakkera8fd3e32013-12-31 11:54:08 +01001747 * Speedup of ECP multiplication operation
Paul Bakker7aa03752013-11-26 17:37:31 +01001748 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001749 * Dropped use of readdir_r() instead of readdir() with threading support
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01001750 * More constant-time checks in the RSA module
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001751 * Split off curves from ecp.c into ecp_curves.c
Paul Bakkera9a028e2013-11-21 17:31:06 +01001752 * Curves are now stored fully in ROM
Paul Bakker7aa03752013-11-26 17:37:31 +01001753 * Memory usage optimizations in ECP module
1754 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker6f0636a2013-12-16 15:24:05 +01001755
Paul Bakkerf70fe812013-12-16 16:43:10 +01001756Bugfix
Paul Bakker1a56fc92013-12-19 13:51:24 +01001757 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakker6ea1a952013-12-31 11:16:03 +01001758 * Fixed X.509 hostname comparison (with non-regular characters)
1759 * SSL now gracefully handles missing RNG
Paul Bakker6992eb72013-12-31 11:35:16 +01001760 * Missing defines / cases for RSA_PSK key exchange
1761 * crypt_and_hash app checks MAC before final decryption
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001762 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakker956c9e02013-12-19 14:42:28 +01001763 * Memory leak in benchmark application
1764 * Fixed x509_crt_parse_path() bug on Windows platforms
1765 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
1766 TrustInSoft)
Paul Bakkerf4dc1862013-11-04 17:29:42 +01001767 * Fixed potential overflow in certificate size verification in
Paul Bakker08bb1872013-10-28 14:03:26 +01001768 ssl_write_certificate() (found by TrustInSoft)
1769
Paul Bakker3f917e22013-10-28 14:16:59 +01001770Security
Paul Bakker16421222013-10-28 14:37:09 +01001771 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Paul Bakker08bb1872013-10-28 14:03:26 +01001772 TrustInSoft)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001773
1774= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakkere1121b62013-10-31 14:37:37 +01001775Features
Paul Bakker7b0be682013-10-29 14:24:37 +01001776 * PK tests added to test framework
Paul Bakkere1121b62013-10-31 14:37:37 +01001777 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001778 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker677377f2013-10-28 12:54:26 +01001779
Paul Bakker16421222013-10-28 14:37:09 +01001780Changes
Paul Bakker677377f2013-10-28 12:54:26 +01001781 * Padding checks in cipher layer are now constant-time
Paul Bakker45a2c8d2013-10-28 12:57:08 +01001782 * Value comparisons in SSL layer are now constant-time
Paul Bakker68037da2013-10-28 14:02:40 +01001783 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakker50dc8502013-10-28 21:19:10 +01001784 * SSL Renegotiation was refactored
Paul Bakker93c6aa42013-10-28 22:28:09 +01001785
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01001786Bugfix
Paul Bakkerfa6a6202013-10-28 18:48:30 +01001787 * More stringent checks in cipher layer
Paul Bakkere1121b62013-10-31 14:37:37 +01001788 * Server does not send out extensions not advertised by client
Paul Bakker677377f2013-10-28 12:54:26 +01001789 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001790 * Misc fixes and additions to dependency checks
Paul Bakkerb799dec2013-10-11 10:03:27 +02001791 * Const correctness
1792 * cert_write with selfsign should use issuer_name as subject_name
Paul Bakker376e8152013-10-15 12:44:23 +02001793 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerf34673e2013-10-15 12:46:17 +02001794 * Defines to handle UEFI environment under MSVC
Paul Bakkerb799dec2013-10-11 10:03:27 +02001795 * Server-side initiated renegotiations send HelloRequest
Paul Bakkerddba8822013-10-11 09:21:56 +02001796
1797= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakker16770332013-10-11 09:59:44 +02001798Features
Paul Bakkerbe089b02013-10-14 15:51:50 +02001799 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakkera7ea6a52013-10-15 11:55:10 +02001800 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerddba8822013-10-11 09:21:56 +02001801 * Support for RSA-PSK key-exchange and ciphersuites
1802
1803Changes
1804 * RSA blinding locks for a smaller amount of time
1805 * TLS compression only allocates working buffer once
Paul Bakkerfcc17212013-10-11 09:36:52 +02001806 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02001807 * config.h is more script-friendly
Paul Bakker4aa40d42013-10-11 10:49:24 +02001808
Paul Bakkerb7c13122013-10-11 10:51:32 +02001809Bugfix
Paul Bakker5191e922013-10-11 10:54:28 +02001810 * Missing MSVC defines added
Paul Bakkerddba8822013-10-11 09:21:56 +02001811 * Compile errors with POLARSSL_RSA_NO_CRT
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001812 * Header files with 'polarssl/'
Paul Bakker41c83d32013-03-20 14:39:14 +01001813 * Const correctness
1814 * Possible naming collision in dhm_context
1815 * Better support for MSVC
1816 * threading_set_alt() name
1817 * Added missing x509write_crt_set_version()
Paul Bakkerc8676782013-08-28 12:15:11 +02001818
1819= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker8f4ddae2013-04-15 15:09:54 +02001820Features
Paul Bakkerb91c2b52013-04-19 16:05:16 +02001821 * Elliptic Curve Cryptography module added
Paul Bakker6e339b52013-07-03 13:37:05 +02001822 * Elliptic Curve Diffie Hellman module added
1823 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
Paul Bakker2466d932013-09-28 14:40:38 +02001824 (ECDHE-based ciphersuites)
Paul Bakker5ad403f2013-09-18 21:21:30 +02001825 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
Paul Bakkerf85778e2013-07-19 14:55:25 +02001826 (ECDSA-based ciphersuites)
1827 * Ability to specify allowed ciphersuites based on the protocol version.
1828 * PSK and DHE-PSK based ciphersuites added
1829 * Memory allocation abstraction layer added
Paul Bakkerda4d1c32013-08-14 12:24:34 +02001830 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
1831 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker936539a2013-08-14 13:49:20 +02001832 * Public Key abstraction layer added
Paul Bakkerca174fe2013-08-28 16:31:30 +02001833 * Parsing Elliptic Curve keys
1834 * Parsing Elliptic Curve certificates
Paul Bakker7fb4a792013-09-12 12:00:52 +02001835 * Support for max_fragment_length extension (RFC 6066)
1836 * Support for truncated_hmac extension (RFC 6066)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02001837 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
Paul Bakker8b817dc2013-09-25 18:03:58 +02001838 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
1839 * Support for session tickets (RFC 5077)
Paul Bakker41c83d32013-03-20 14:39:14 +01001840 * Certificate Request (CSR) generation with extensions (key_usage,
Paul Bakker9b5798d2013-03-13 13:53:00 +01001841 ns_cert_type)
Paul Bakkerd2f068e2013-08-27 21:19:20 +02001842 * X509 Certificate writing with extensions (basic_constraints,
1843 issuer_key_identifier, etc)
Paul Bakker68884e32013-01-07 18:20:04 +01001844 * Optional blinding for RSA, DHM and EC
1845 * Support for multiple active certificate / key pairs in SSL servers for
Simon Butcherbb5e1c32018-06-08 11:14:43 +01001846 the same host (Not to be confused with SNI!)
Paul Bakker9b5798d2013-03-13 13:53:00 +01001847
Paul Bakker90f042d2013-03-11 11:38:44 +01001848Changes
Paul Bakkerc0463502013-02-14 11:19:38 +01001849 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
1850 individually
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01001851 * Introduced separate SSL Ciphersuites module that is based on
1852 Cipher and MD information
Paul Bakkerc70b9822013-04-07 22:00:46 +02001853 * Internals for SSL module adapted to have separate IV pointer that is
1854 dynamically set (Better support for hardware acceleration)
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02001855 * Moved all OID functionality to a separate module. RSA function
Paul Bakker2fbefde2013-06-29 16:01:15 +02001856 prototypes for the RSA sign and verify functions changed as a result
1857 * Split up the GCM module into a starts/update/finish cycle
Paul Bakkere2ab84f2013-06-29 18:24:32 +02001858 * Client and server now filter sent and accepted ciphersuites on minimum
1859 and maximum protocol version
Paul Bakker0be444a2013-08-27 21:55:01 +02001860 * Ability to disable server_name extension (RFC 6066)
Paul Bakkere47b34b2013-02-27 14:48:00 +01001861 * Renamed error_strerror() to the less conflicting polarssl_strerror()
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001862 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9e36f042013-06-30 14:34:05 +02001863 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakker548957d2013-08-30 10:30:02 +02001864 * All RSA operations require a random generator for blinding purposes
Paul Bakker45f21c72013-09-18 15:33:49 +02001865 * X509 core refactored
1866 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker5ad403f2013-09-18 21:21:30 +02001867 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02001868 * Support faulty X509 v1 certificates with extensions
1869 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakkere47b34b2013-02-27 14:48:00 +01001870
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001871Bugfix
Paul Bakker73d44312013-05-22 13:56:26 +02001872 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02001873 * zlib compression/decompression skipped on empty blocks
Paul Bakker1e6a1752013-07-26 14:10:22 +02001874 * Support for AIX header locations in net.c module
Paul Bakker003dbad2013-09-09 17:26:14 +02001875 * Fixed file descriptor leaks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001876
Paul Bakkeraab30c12013-08-30 11:00:25 +02001877Security
1878 * RSA blinding on CRT operations to counter timing attacks
1879 (found by Cyril Arnaud and Pierre-Alain Fouque)
1880
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02001881
1882= Version 1.2.14 released 2015-05-??
1883
1884Security
1885 * Fix potential invalid memory read in the server, that allows a client to
1886 crash it remotely (found by Caj Larsson).
1887 * Fix potential invalid memory read in certificate parsing, that allows a
1888 client to crash the server remotely if client authentication is enabled
1889 (found using Codenomicon Defensics).
1890 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
1891 https://dl.acm.org/citation.cfm?id=2714625
1892
1893Bugfix
1894 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
1895 * Fix hardclock() (only used in the benchmarking program) with some
1896 versions of mingw64 (found by kxjhlele).
1897 * Fix warnings from mingw64 in timing.c (found by kxjklele).
1898 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1899 platforms (found with Coverity Scan).
1900
1901= Version 1.2.13 released 2015-02-16
1902Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
1903 this will be made in the 1.2 branch at this point.
1904
1905Security
1906 * Fix remotely-triggerable uninitialised pointer dereference caused by
1907 crafted X.509 certificate (TLS server is not affected if it doesn't ask
1908 for a client certificate) (found using Codenomicon Defensics).
1909 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1910 (TLS server is not affected if it doesn't ask for a client certificate)
1911 (found using Codenomicon Defensics).
1912 * Fix potential stack overflow while parsing crafted X.509 certificates
1913 (TLS server is not affected if it doesn't ask for a client certificate)
1914 found using Codenomicon Defensics).
1915 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
1916 (TLS server is not affected if it doesn't ask for a client certificate).
1917
1918Bugfix
1919 * Fix potential undefined behaviour in Camellia.
1920 * Fix memory leaks in PKCS#5 and PKCS#12.
1921 * Stack buffer overflow if ctr_drbg_update() is called with too large
1922 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1923 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
1924 in 1.2.12).
1925 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1926 Peter Vaskovic).
1927 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1928 * ssl_get_verify_result() now works even if the handshake was aborted due
1929 to a failed verification (found by Fredrik Axelsson).
1930 * Skip writing and parsing signature_algorithm extension if none of the
1931 key exchanges enabled needs certificates. This fixes a possible interop
1932 issue with some servers when a zero-length extension was sent. (Reported
1933 by Peter Dettman.)
1934 * On a 0-length input, base64_encode() did not correctly set output length
1935 (found by Hendrik van den Boogaard).
1936
1937Changes
1938 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
1939 * Forbid repeated extensions in X.509 certificates.
1940 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
1941 length of an X.509 verification chain (default = 8).
Paul Bakkera6c5ea22014-10-24 16:26:29 +02001942= Version 1.2.12 released 2014-10-24
1943
1944Security
1945 * Remotely-triggerable memory leak when parsing some X.509 certificates
1946 (server is not affected if it doesn't ask for a client certificate).
1947 (Found using Codenomicon Defensics.)
1948
1949Bugfix
1950 * Fix potential bad read in parsing ServerHello (found by Adrien
1951 Vialletelle).
1952 * ssl_close_notify() could send more than one message in some circumstances
1953 with non-blocking I/O.
1954 * x509_crt_parse() did not increase total_failed on PEM error
1955 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1956 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1957 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
1958 * ssl_read() could return non-application data records on server while
1959 renegotation was pending, and on client when a HelloRequest was received.
1960 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
1961
1962Changes
1963 * X.509 certificates with more than one AttributeTypeAndValue per
1964 RelativeDistinguishedName are not accepted any more.
1965 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
1966 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
1967 * Accept spaces at end of line or end of buffer in base64_decode().
1968
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02001969= Version 1.2.11 released 2014-07-11
1970Features
1971 * Entropy module now supports seed writing and reading
1972
1973Changes
1974 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
1975 * Improvements to the CMake build system, contributed by Julian Ospald.
1976 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1977 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
1978 * Improvements to tests/Makefile, contributed by Oden Eriksson.
1979 * Use UTC time to check certificate validity.
1980 * Reject certificates with times not in UTC, per RFC 5280.
1981 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
1982 against unwanted compiler optimizations
1983
1984Security
1985 * Forbid change of server certificate during renegotiation to prevent
1986 "triple handshake" attack when authentication mode is optional (the
1987 attack was already impossible when authentication is required).
1988 * Check notBefore timestamp of certificates and CRLs from the future.
1989 * Forbid sequence number wrapping
1990 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
1991 TrustInSoft)
1992 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1993 It was possible to crash the server (and client) using crafted messages
1994 when a GCM suite was chosen.
1995
1996Bugfix
1997 * Fixed X.509 hostname comparison (with non-regular characters)
1998 * SSL now gracefully handles missing RNG
1999 * crypt_and_hash app checks MAC before final decryption
2000 * Fixed x509_crt_parse_path() bug on Windows platforms
2001 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2002 TrustInSoft)
2003 * Fixed potential overflow in certificate size verification in
2004 ssl_write_certificate() (found by TrustInSoft)
2005 * Fix ASM format in bn_mul.h
2006 * Potential memory leak in bignum_selftest()
2007 * Replaced expired test certificate
2008 * ssl_mail_client now terminates lines with CRLF, instead of LF
2009 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
2010 * Fixed testing with out-of-source builds using cmake
2011 * Fixed version-major intolerance in server
2012 * Fixed CMake symlinking on out-of-source builds
2013 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2014 Alex Wilson.)
2015 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2016 out_ctr failed
2017 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2018 of one of them failed
2019 * x509_get_current_time() uses localtime_r() to prevent thread issues
2020 * Some example server programs were not sending the close_notify alert.
2021 * Potential memory leak in mpi_exp_mod() when error occurs during
2022 calculation of RR.
2023 * Improve interoperability by not writing extension length in ClientHello
2024 when no extensions are present (found by Matthew Page)
2025 * rsa_check_pubkey() now allows an E up to N
2026 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
2027 * mpi_fill_random() was creating numbers larger than requested on
2028 big-endian platform when size was not an integer number of limbs
2029 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
2030 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2031 size (found by TrustInSoft)
2032 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
2033 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2034 interpret semicolons as comment delimiters (found by Barry K. Nathan).
2035 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
2036 * Fix base64_decode() to return and check length correctly (in case of
2037 tight buffers)
2038
Paul Bakker3a2c0562013-10-07 16:22:05 +02002039= Version 1.2.10 released 2013-10-07
2040Changes
2041 * Changed RSA blinding to a slower but thread-safe version
2042
2043Bugfix
2044 * Fixed memory leak in RSA as a result of introduction of blinding
2045 * Fixed ssl_pkcs11_decrypt() prototype
2046 * Fixed MSVC project files
2047
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002048= Version 1.2.9 released 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002049Changes
2050 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
2051
2052Bugfix
2053 * Fixed potential memory leak when failing to resume a session
2054 * Fixed potential file descriptor leaks (found by Remi Gacogne)
2055 * Minor fixes
2056
2057Security
2058 * Fixed potential heap buffer overflow on large hostname setting
2059 * Fixed potential negative value misinterpretation in load_file()
2060 * RSA blinding on CRT operations to counter timing attacks
2061 (found by Cyril Arnaud and Pierre-Alain Fouque)
2062
Paul Bakkerde656232013-06-24 19:07:34 +02002063= Version 1.2.8 released 2013-06-19
2064Features
2065 * Parsing of PKCS#8 encrypted private key files
2066 * PKCS#12 PBE and derivation functions
2067 * Centralized module option values in config.h to allow user-defined
2068 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
2069
2070Changes
2071 * HAVEGE random generator disabled by default
2072 * Internally split up x509parse_key() into a (PEM) handler function
2073 and specific DER parser functions for the PKCS#1 and unencrypted
2074 PKCS#8 private key formats
2075 * Added mechanism to provide alternative implementations for all
2076 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002077 config.h)
Paul Bakkerde656232013-06-24 19:07:34 +02002078 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
2079 old PBKDF2 module
2080
2081Bugfix
2082 * Secure renegotiation extension should only be sent in case client
2083 supports secure renegotiation
2084 * Fixed offset for cert_type list in ssl_parse_certificate_request()
2085 * Fixed const correctness issues that have no impact on the ABI
2086 * x509parse_crt() now better handles PEM error situations
2087 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2088 instead of the x509parse_crt() wrapper that can also parse PEM
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002089 certificates
Paul Bakkerde656232013-06-24 19:07:34 +02002090 * x509parse_crtpath() is now reentrant and uses more portable stat()
2091 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
2092 * Fixed values for 2-key Triple DES in cipher layer
2093 * ssl_write_certificate_request() can handle empty ca_chain
2094
2095Security
2096 * A possible DoS during the SSL Handshake, due to faulty parsing of
2097 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2098
2099= Version 1.2.7 released 2013-04-13
2100Features
2101 * Ability to specify allowed ciphersuites based on the protocol version.
2102
2103Changes
2104 * Default Blowfish keysize is now 128-bits
2105 * Test suites made smaller to accommodate Raspberry Pi
2106
2107Bugfix
2108 * Fix for MPI assembly for ARM
2109 * GCM adapted to support sizes > 2^29
2110
Paul Bakkerc0463502013-02-14 11:19:38 +01002111= Version 1.2.6 released 2013-03-11
2112Bugfix
2113 * Fixed memory leak in ssl_free() and ssl_reset() for active session
2114 * Corrected GCM counter incrementation to use only 32-bits instead of
Paul Bakkere47b34b2013-02-27 14:48:00 +01002115 128-bits (found by Yawning Angel)
Paul Bakkere3e4a592013-02-28 10:20:53 +01002116 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakker37286a52013-03-06 16:55:11 +01002117 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01002118 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakkerd66f0702013-01-31 16:57:45 +01002119
Paul Bakkerb3869132013-02-28 17:21:01 +01002120Changes
2121 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
2122 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
2123 PKCS#1 v2.1 functions
Paul Bakkera43231c2013-02-28 17:33:49 +01002124 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
2125 or rsa_rsaes_oaep_decrypt()
Paul Bakker78a8c712013-03-06 17:01:52 +01002126 * Re-added handling for SSLv2 Client Hello when the define
2127 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkere81beda2013-03-06 17:40:46 +01002128 * The SSL session cache module (ssl_cache) now also retains peer_cert
2129 information (not the entire chain)
Paul Bakkerb3869132013-02-28 17:21:01 +01002130
Paul Bakkere47b34b2013-02-27 14:48:00 +01002131Security
2132 * Removed further timing differences during SSL message decryption in
2133 ssl_decrypt_buf()
Paul Bakker8804f692013-02-28 18:06:26 +01002134 * Removed timing differences due to bad padding from
2135 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2136 operations
Paul Bakkere47b34b2013-02-27 14:48:00 +01002137
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002138= Version 1.2.5 released 2013-02-02
2139Changes
2140 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakkerd66f0702013-01-31 16:57:45 +01002141 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01002142 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker40865c82013-01-31 17:13:13 +01002143 * Sending of security-relevant alert messages that do not break
2144 interoperability can be switched on/off with the flag
Paul Bakkera35aa542013-03-06 17:06:21 +01002145 POLARSSL_SSL_ALL_ALERT_MESSAGES
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002146
Paul Bakker45829992013-01-03 14:52:21 +01002147Security
2148 * Removed timing differences during SSL message decryption in
2149 ssl_decrypt_buf() due to badly formatted padding
2150
Paul Bakker14c56a32013-01-25 17:11:37 +01002151= Version 1.2.4 released 2013-01-25
Paul Bakker1961b702013-01-25 14:49:24 +01002152Changes
Paul Bakker68884e32013-01-07 18:20:04 +01002153 * More advanced SSL ciphersuite representation and moved to more dynamic
2154 SSL core
Paul Bakker1961b702013-01-25 14:49:24 +01002155 * Added ssl_handshake_step() to allow single stepping the handshake process
2156
Paul Bakker40628ba2013-01-03 10:50:31 +01002157Bugfix
2158 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakker21dca692013-01-03 11:41:08 +01002159 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker9c94cdd2013-01-22 13:45:33 +01002160 * Correctly handle CertificateRequest message in client for <= TLS 1.1
2161 without DN list
Paul Bakker40628ba2013-01-03 10:50:31 +01002162
Paul Bakkerfb1ba782012-11-26 16:28:25 +01002163= Version 1.2.3 released 2012-11-26
2164Bugfix
2165 * Server not always sending correct CertificateRequest message
2166
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002167= Version 1.2.2 released 2012-11-24
Paul Bakkere667c982012-11-20 13:50:22 +01002168Changes
2169 * Added p_hw_data to ssl_context for context specific hardware acceleration
2170 data
Hanno Becker01a0e072017-07-26 11:49:40 +01002171 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkere667c982012-11-20 13:50:22 +01002172
Paul Bakker7c90da92012-11-23 14:02:40 +01002173Bugfixes
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002174 * Fixed client authentication compatibility
2175 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker7c90da92012-11-23 14:02:40 +01002176
Paul Bakker14926332012-11-20 10:58:09 +01002177= Version 1.2.1 released 2012-11-20
Paul Bakker34d8dbc2012-11-14 12:11:38 +00002178Changes
2179 * Depth that the certificate verify callback receives is now numbered
2180 bottom-up (Peer cert depth is 0)
2181
Paul Bakker7a2538e2012-11-02 10:59:36 +00002182Bugfixes
2183 * Fixes for MSVC6
Paul Bakkerd9374b02012-11-02 11:02:58 +00002184 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakkerf02c5642012-11-13 10:25:21 +00002185 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2186 Pégourié-Gonnard)
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01002187 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2188 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00002189 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakker7a2538e2012-11-02 10:59:36 +00002190
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002191= Version 1.2.0 released 2012-10-31
Paul Bakkerfab5c822012-02-06 16:45:10 +00002192Features
2193 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
2194 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
2195 default!
Paul Bakkera8cd2392012-02-11 16:09:32 +00002196 * Added support for wildcard certificates
2197 * Added support for multi-domain certificates through the X509 Subject
2198 Alternative Name extension
Paul Bakkerbdb912d2012-02-13 23:11:30 +00002199 * Added preliminary ASN.1 buffer writing support
2200 * Added preliminary X509 Certificate Request writing support
2201 * Added key_app_writer example application
2202 * Added cert_req example application
Paul Bakker89e80c92012-03-20 13:50:09 +00002203 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker48916f92012-09-16 19:57:18 +00002204 * Added TLS 1.2 support (RFC 5246)
Paul Bakkerca4ab492012-04-18 14:23:57 +00002205 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker01cc3942012-05-08 08:36:15 +00002206 * Added commandline error code convertor (util/strerror)
Paul Bakker05ef8352012-05-08 09:17:57 +00002207 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002208 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002209 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker8d914582012-06-04 12:46:42 +00002210 * Added X509 CA Path support
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00002211 * Added Thumb assembly optimizations
Paul Bakker2770fbd2012-07-03 13:30:23 +00002212 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002213 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakkerf518b162012-08-23 13:03:18 +00002214 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker48916f92012-09-16 19:57:18 +00002215 * Added Secure Renegotiation (RFC 5746)
Paul Bakker29b64762012-09-25 09:36:44 +00002216 * Added predefined DHM groups from RFC 5114
Paul Bakker0a597072012-09-25 21:55:46 +00002217 * Added simple SSL session cache implementation
Paul Bakker5701cdc2012-09-27 21:49:42 +00002218 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1d29fb52012-09-28 13:28:45 +00002219 * Added option to add minimum accepted SSL/TLS protocol version
Paul Bakkerfab5c822012-02-06 16:45:10 +00002220
Paul Bakker1504af52012-02-11 16:17:43 +00002221Changes
2222 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker048d04e2012-02-12 17:31:04 +00002223 * AES code only check for Padlock once
Paul Bakker6b906e52012-05-08 12:01:43 +00002224 * Fixed const-correctness mpi_get_bit()
2225 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker186751d2012-05-08 13:16:14 +00002226 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker4d2c1242012-05-10 14:12:46 +00002227 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakker5b377842012-05-16 07:57:36 +00002228 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002229 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
2230 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkerec636f32012-09-09 19:17:02 +00002231 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker0a597072012-09-25 21:55:46 +00002232 * Revamped session resumption handling
Paul Bakkereb2c6582012-09-27 19:15:01 +00002233 * Generalized external private key implementation handling (like PKCS#11)
2234 in SSL/TLS
Paul Bakker915275b2012-09-28 07:10:55 +00002235 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker5c2364c2012-10-01 14:41:15 +00002236 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker645ce3a2012-10-31 12:32:41 +00002237 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker1504af52012-02-11 16:17:43 +00002238
Paul Bakker37824582012-03-22 14:10:22 +00002239Bugfix
Paul Bakker7beceb22012-03-22 14:19:49 +00002240 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2241 Hui Dong)
Paul Bakker430ffbe2012-05-01 08:14:20 +00002242 * Fixed potential heap corruption in x509_name allocation
Paul Bakker5b377842012-05-16 07:57:36 +00002243 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkerf6198c12012-05-16 08:02:29 +00002244 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2245 #52)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002246 * Handle encryption with private key and decryption with public key as per
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002247 RFC 2313
Paul Bakkercefb3962012-06-27 11:51:09 +00002248 * Handle empty certificate subject names
Paul Bakker535e97d2012-08-23 10:49:55 +00002249 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00002250 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker995a2152012-09-25 08:19:56 +00002251 with carry rollover (found by Ruslan Yushchenko)
Paul Bakkerb00ca422012-09-25 12:10:00 +00002252 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker4f024b72012-10-30 07:29:57 +00002253 * Fixed MPI assembly for SPARC64 platform
Paul Bakker37824582012-03-22 14:10:22 +00002254
Paul Bakker452d5322012-04-05 12:07:34 +00002255Security
Paul Bakker3c16db92012-07-05 13:58:08 +00002256 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2257 Vanderbeken)
Paul Bakker452d5322012-04-05 12:07:34 +00002258
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002259= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002260Bugfix
2261 * Fixed potential memory leak when failing to resume a session
2262 * Fixed potential file descriptor leaks
2263
2264Security
2265 * Potential buffer-overflow for ssl_read_record() (independently found by
2266 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
2267 * Potential negative value misinterpretation in load_file()
2268 * Potential heap buffer overflow on large hostname setting
2269
Paul Bakker248fff52013-06-24 19:08:50 +02002270= Version 1.1.7 released on 2013-06-19
2271Changes
2272 * HAVEGE random generator disabled by default
2273
2274Bugfix
2275 * x509parse_crt() now better handles PEM error situations
2276 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2277 instead of the x509parse_crt() wrapper that can also parse PEM
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002278 certificates
Paul Bakker248fff52013-06-24 19:08:50 +02002279 * Fixed values for 2-key Triple DES in cipher layer
2280 * ssl_write_certificate_request() can handle empty ca_chain
2281
2282Security
2283 * A possible DoS during the SSL Handshake, due to faulty parsing of
2284 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2285
2286= Version 1.1.6 released on 2013-03-11
2287Bugfix
2288 * Fixed net_bind() for specified IP addresses on little endian systems
2289
2290Changes
2291 * Allow enabling of dummy error_strerror() to support some use-cases
2292 * Debug messages about padding errors during SSL message decryption are
2293 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
2294
2295Security
2296 * Removed timing differences during SSL message decryption in
2297 ssl_decrypt_buf()
2298 * Removed timing differences due to bad padding from
2299 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2300 operations
2301
Paul Bakker9d2bb652013-01-25 16:07:49 +01002302= Version 1.1.5 released on 2013-01-16
2303Bugfix
2304 * Fixed MPI assembly for SPARC64 platform
2305 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
2306 * mpi_add_abs() now correctly handles adding short numbers to long numbers
2307 with carry rollover
2308 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
2309 * Prevent reading over buffer boundaries on X509 certificate parsing
2310 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2311 #52)
2312 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2313 Pégourié-Gonnard)
2314 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2315 Pégourié-Gonnard)
2316 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2317 * Memory leak when using RSA_PKCS_V21 operations fixed
2318 * Handle encryption with private key and decryption with public key as per
2319 RFC 2313
2320 * Fixes for MSVC6
2321
2322Security
2323 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2324 Vanderbeken)
2325
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002326= Version 1.1.4 released on 2012-05-31
2327Bugfix
2328 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2329 * Fixed potential heap corruption in x509_name allocation
2330 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2331
Paul Bakkerfad38932012-05-08 09:04:04 +00002332= Version 1.1.3 released on 2012-04-29
2333Bugfix
2334 * Fixed random MPI generation to not generate more size than requested.
2335
2336= Version 1.1.2 released on 2012-04-26
2337Bugfix
2338 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2339 Hui Dong)
2340
2341Security
2342 * Fixed potential memory corruption on miscrafted client messages (found by
2343 Frama-C team at CEA LIST)
2344 * Fixed generation of DHM parameters to correct length (found by Ruslan
2345 Yushchenko)
2346
Paul Bakker99955bf2012-01-23 09:31:41 +00002347= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002348Bugfix
2349 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2350 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002351 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002352 * Fixed multiple compiler warnings for VS6 and armcc
2353 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002354
Paul Bakker08a50882011-12-22 09:43:57 +00002355= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002356Features
2357 * Added ssl_session_reset() to allow better multi-connection pools of
2358 SSL contexts without needing to set all non-connection-specific
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002359 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002360 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2361 supported version to a server to help buggy server implementations.
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002362 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002363 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2364 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002365 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002366 * Added a generic entropy accumulator that provides support for adding
2367 custom entropy sources and added some generic and platform dependent
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002368 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002369
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002370Changes
2371 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002372 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2373 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002374 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002375 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002376 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002377 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2378 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002379 * Changed the defined key-length of DES ciphers in cipher.h to include the
2380 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002381 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002382 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002383 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2384 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002385 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2386 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002387 * Changed the used random function pointer to more flexible format. Renamed
2388 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002389 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002390 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002391 * Added permissive certificate parsing to x509parse_crt() and
2392 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002393 encountering a parse-error. Beware that the meaning of return values has
2394 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002395 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002396
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002397Bugfix
2398 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2399 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002400 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2401 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002402 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2403 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002404 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2405 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002406 * If certificate serial is longer than 32 octets, serial number is now
2407 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002408 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002409 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002410 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002411 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002412
Paul Bakker968bc982011-07-27 17:03:00 +00002413= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002414Features
2415 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002416 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002417
Paul Bakker42e59812011-06-09 15:55:41 +00002418Changes
2419 * The generic cipher and message digest layer now have normal error
2420 codes instead of integers
2421
Paul Bakker887bd502011-06-08 13:10:54 +00002422Bugfix
2423 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2424 #18)
2425
Paul Bakker828acb22011-05-27 09:25:42 +00002426= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002427Features
2428 * Added additional Cipher Block Modes to symmetric ciphers
2429 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002430 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002431 * Functions requiring File System functions can now be disabled
2432 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002433 * A error_strerror function() has been added to translate between
2434 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002435 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2436 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002437 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002438
Paul Bakker23986e52011-04-24 08:57:21 +00002439Changes
2440 * Major argument / variable rewrite. Introduced use of size_t
2441 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002442 better unsigned / signed use. Renamed internal bigint types
2443 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002444 * mpi_init() and mpi_free() now only accept a single MPI
2445 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002446 * The error codes have been remapped and combining error codes
2447 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002448 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002449 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2450 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002451 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2452 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2453 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2454 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002455 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2456 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002457 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002458
Paul Bakker3efa5752011-04-01 12:23:26 +00002459= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002460Features
2461 * Added support for PKCS#1 v2.1 encoding and thus support
2462 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002463 * Reading of Public Key files incorporated into default x509
2464 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002465 * Added mpi_fill_random() for centralized filling of big numbers
2466 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002467
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002468Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002469 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002470 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002471 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002472 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002473 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002474
2475Bugfix
2476 * Debug output of MPI's now the same independent of underlying
2477 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002478 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002479 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2480 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002481 * Fixed proper handling of RSASSA-PSS verification with variable
2482 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002483
Paul Bakker345a6fe2011-02-28 21:20:02 +00002484= Version 0.99-pre3 released on 2011-02-28
2485This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002486Features
2487 * Parsing PEM private keys encrypted with DES and AES
2488 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002489 * Added crl_app program to allow easy reading and
2490 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00002491
2492Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002493 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00002494 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01002495 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00002496
Paul Bakker400ff6f2011-02-20 10:40:16 +00002497Bugfixes
2498 * Corrected parsing of UTCTime dates before 1990 and
2499 after 1950
2500 * Support more exotic OID's when parsing certificates
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002501 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002502 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002503 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002504 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002505 * Do not bail out if no client certificate specified. Try
2506 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01002507 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002508
Paul Bakker345a6fe2011-02-28 21:20:02 +00002509Security fixes
2510 * Fixed a possible Man-in-the-Middle attack on the
2511 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01002512 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00002513
Paul Bakker9fc46592011-01-30 16:59:02 +00002514= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00002515Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00002516Note: Most of these features have been donated by Fox-IT
2517 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00002518 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00002519 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00002520 certificate fields, including Key Usage
2521 * Improved certificate verification and verification
2522 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00002523 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00002524 * Improvements to support integration in other
2525 applications:
2526 + Added generic message digest and cipher wrapper
2527 + Improved information about current capabilities,
2528 status, objects and configuration
2529 + Added verification callback on certificate chain
2530 verification to allow external blacklisting
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002531 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00002532 * Added support for PKCS#11 through the use of the
2533 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00002534
Paul Bakkerb6194992011-01-16 21:40:22 +00002535Changes
2536 * x509parse_time_expired() checks time in addition to
2537 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00002538 * The ciphers member of ssl_context and the cipher member
2539 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01002540 ciphersuite respectively. This clarifies the difference
2541 with the generic cipher layer and is better naming
2542 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00002543
Paul Bakker99ed6782011-01-05 14:48:42 +00002544= Version 0.14.0 released on 2010-08-16
2545Features
2546 * Added support for SSL_EDH_RSA_AES_128_SHA and
2547 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
2548 * Added compile-time and run-time version information
2549 * Expanded ssl_client2 arguments for more flexibility
2550 * Added support for TLS v1.1
2551
2552Changes
2553 * Made Makefile cleaner
2554 * Removed dependency on rand() in rsa_pkcs1_encrypt().
2555 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01002556 changed the prototype of rsa_pkcs1_encrypt(),
2557 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00002558 * Some SSL defines were renamed in order to avoid
2559 future confusion
2560
2561Bug fixes
2562 * Fixed CMake out of source build for tests (found by
2563 kkert)
2564 * rsa_check_private() now supports PKCS1v2 keys as well
2565 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
2566 generator
2567
2568= Version 0.13.1 released on 2010-03-24
2569Bug fixes
2570 * Fixed Makefile in library that was mistakenly merged
2571 * Added missing const string fixes
2572
2573= Version 0.13.0 released on 2010-03-21
2574Features
2575 * Added option parsing for host and port selection to
2576 ssl_client2
2577 * Added support for GeneralizedTime in X509 parsing
2578 * Added cert_app program to allow easy reading and
2579 printing of X509 certificates from file or SSL
2580 connection.
2581
2582Changes
2583 * Added const correctness for main code base
2584 * X509 signature algorithm determination is now
2585 in a function to allow easy future expansion
2586 * Changed symmetric cipher functions to
2587 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01002588 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00002589 * Added reset function for HMAC context as speed-up
2590 for specific use-cases
2591
2592Bug fixes
2593 * Fixed bug resulting in failure to send the last
2594 certificate in the chain in ssl_write_certificate() and
2595 ssl_write_certificate_request() (found by fatbob)
2596 * Added small fixes for compiler warnings on a Mac
2597 (found by Frank de Brabander)
2598 * Fixed algorithmic bug in mpi_is_prime() (found by
2599 Smbat Tonoyan)
2600
2601= Version 0.12.1 released on 2009-10-04
2602Changes
2603 * Coverage test definitions now support 'depends_on'
2604 tagging system.
2605 * Tests requiring specific hashing algorithms now honor
2606 the defines.
2607
2608Bug fixes
2609 * Changed typo in #ifdef in x509parse.c (found
2610 by Eduardo)
2611
2612= Version 0.12.0 released on 2009-07-28
2613Features
2614 * Added CMake makefiles as alternative to regular Makefiles.
2615 * Added preliminary Code Coverage tests for AES, ARC4,
2616 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
2617 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
2618 and X509parse.
2619
2620Changes
2621 * Error codes are not (necessarily) negative. Keep
2622 this is mind when checking for errors.
2623 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
2624 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
2625 * Changed interface for AES and Camellia setkey functions
2626 to indicate invalid key lengths.
2627
2628Bug fixes
2629 * Fixed include location of endian.h on FreeBSD (found by
2630 Gabriel)
2631 * Fixed include location of endian.h and name clash on
2632 Apples (found by Martin van Hensbergen)
2633 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
2634 required HMAC ipad and opad variables are not cleared.
2635 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01002636 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00002637 POLARSSL_HAVE_LONGLONG not defined (found by Giles
2638 Bathgate).
2639 * Fixed incorrect handling of negative strings in
2640 mpi_read_string() (found by code coverage tests).
2641 * Fixed segfault on handling empty rsa_context in
2642 rsa_check_pubkey() and rsa_check_privkey() (found by
2643 code coverage tests).
2644 * Fixed incorrect handling of one single negative input
2645 value in mpi_add_abs() (found by code coverage tests).
2646 * Fixed incorrect handling of negative first input
2647 value in mpi_sub_abs() (found by code coverage tests).
2648 * Fixed incorrect handling of negative first input
2649 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
2650 change also affects mpi_write_string() (found by code
2651 coverage tests).
2652 * Corrected is_prime() results for 0, 1 and 2 (found by
2653 code coverage tests).
2654 * Fixed Camellia and XTEA for 64-bit Windows systems.
2655
2656= Version 0.11.1 released on 2009-05-17
2657 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
2658 SHA-512 in rsa_pkcs1_sign()
2659
2660= Version 0.11.0 released on 2009-05-03
2661 * Fixed a bug in mpi_gcd() so that it also works when both
2662 input numbers are even and added testcases to check
2663 (found by Pierre Habouzit).
2664 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
2665 one way hash functions with the PKCS#1 v1.5 signing and
2666 verification.
2667 * Fixed minor bug regarding mpi_gcd located within the
2668 POLARSSL_GENPRIME block.
2669 * Fixed minor memory leak in x509parse_crt() and added better
2670 handling of 'full' certificate chains (found by Mathias
2671 Olsson).
2672 * Centralized file opening and reading for x509 files into
2673 load_file()
2674 * Made definition of net_htons() endian-clean for big endian
2675 systems (Found by Gernot).
2676 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01002677 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00002678 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
2679 responsible for crashes and unwanted behaviour.
2680 * Added support for Certificate Revocation List (CRL) parsing.
2681 * Added support for CRL revocation to x509parse_verify() and
2682 SSL/TLS code.
2683 * Fixed compatibility of XTEA and Camellia on a 64-bit system
2684 (found by Felix von Leitner).
2685
2686= Version 0.10.0 released on 2009-01-12
2687 * Migrated XySSL to PolarSSL
2688 * Added XTEA symmetric cipher
2689 * Added Camellia symmetric cipher
2690 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
2691 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
2692 * Fixed dangerous bug that can cause a heap overflow in
2693 rsa_pkcs1_decrypt (found by Christophe Devine)
2694
2695================================================================
2696XySSL ChangeLog
2697
2698= Version 0.9 released on 2008-03-16
2699
2700 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
2701 * Enabled support for large files by default in aescrypt2.c
2702 * Preliminary openssl wrapper contributed by David Barrett
2703 * Fixed a bug in ssl_write() that caused the same payload to
2704 be sent twice in non-blocking mode when send returns EAGAIN
2705 * Fixed ssl_parse_client_hello(): session id and challenge must
2706 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
2707 * Added user-defined callback debug function (Krystian Kolodziej)
2708 * Before freeing a certificate, properly zero out all cert. data
2709 * Fixed the "mode" parameter so that encryption/decryption are
2710 not swapped on PadLock; also fixed compilation on older versions
2711 of gcc (bug reported by David Barrett)
2712 * Correctly handle the case in padlock_xcryptcbc() when input or
2713 ouput data is non-aligned by falling back to the software
2714 implementation, as VIA Nehemiah cannot handle non-aligned buffers
2715 * Fixed a memory leak in x509parse_crt() which was reported by Greg
2716 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
2717 Matthew Page who reported several bugs
2718 * Fixed x509_get_ext() to accept some rare certificates which have
2719 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
2720 * Added support on the client side for the TLS "hostname" extension
2721 (patch contributed by David Patino)
2722 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
2723 string is passed as the CN (bug reported by spoofy)
2724 * Added an option to enable/disable the BN assembly code
2725 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
2726 * Disabled obsolete hash functions by default (MD2, MD4); updated
2727 selftest and benchmark to not test ciphers that have been disabled
2728 * Updated x509parse_cert_info() to correctly display byte 0 of the
2729 serial number, setup correct server port in the ssl client example
2730 * Fixed a critical denial-of-service with X.509 cert. verification:
2731 peer may cause xyssl to loop indefinitely by sending a certificate
2732 for which the RSA signature check fails (bug reported by Benoit)
2733 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
2734 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
2735 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
2736 * Modified ssl_parse_client_key_exchange() to protect against
2737 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
2738 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
2739 * Updated rsa_gen_key() so that ctx->N is always nbits in size
2740 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
2741 David Barrett and Dusan Semen
2742
2743= Version 0.8 released on 2007-10-20
2744
2745 * Modified the HMAC functions to handle keys larger
2746 than 64 bytes, thanks to Stephane Desneux and gary ng
2747 * Fixed ssl_read_record() to properly update the handshake
2748 message digests, which fixes IE6/IE7 client authentication
2749 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
2750 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
2751 * Added user-defined callbacks for handling I/O and sessions
2752 * Added lots of debugging output in the SSL/TLS functions
2753 * Added preliminary X.509 cert. writing by Pascal Vizeli
2754 * Added preliminary support for the VIA PadLock routines
2755 * Added AES-CFB mode of operation, contributed by chmike
2756 * Added an SSL/TLS stress testing program (ssl_test.c)
2757 * Updated the RSA PKCS#1 code to allow choosing between
2758 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
2759 * Updated ssl_read() to skip 0-length records from OpenSSL
2760 * Fixed the make install target to comply with *BSD make
2761 * Fixed a bug in mpi_read_binary() on 64-bit platforms
2762 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
2763 * Fixed a long standing memory leak in mpi_is_prime()
2764 * Replaced realloc with malloc in mpi_grow(), and set
2765 the sign of zero as positive in mpi_init() (reported
2766 by Jonathan M. McCune)
2767
2768= Version 0.7 released on 2007-07-07
2769
2770 * Added support for the MicroBlaze soft-core processor
2771 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
2772 connections from being established with non-blocking I/O
2773 * Fixed a couple bugs in the VS6 and UNIX Makefiles
2774 * Fixed the "PIC register ebx clobbered in asm" bug
2775 * Added HMAC starts/update/finish support functions
2776 * Added the SHA-224, SHA-384 and SHA-512 hash functions
2777 * Fixed the net_set_*block routines, thanks to Andreas
2778 * Added a few demonstration programs: md5sum, sha1sum,
2779 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
2780 * Added new bignum import and export helper functions
2781 * Rewrote README.txt in program/ssl/ca to better explain
2782 how to create a test PKI
2783
2784= Version 0.6 released on 2007-04-01
2785
2786 * Ciphers used in SSL/TLS can now be disabled at compile
2787 time, to reduce the memory footprint on embedded systems
2788 * Added multiply assembly code for the TriCore and modified
2789 havege_struct for this processor, thanks to David Patiño
2790 * Added multiply assembly code for 64-bit PowerPCs,
2791 thanks to Peking University and the OSU Open Source Lab
2792 * Added experimental support of Quantum Cryptography
2793 * Added support for autoconf, contributed by Arnaud Cornet
2794 * Fixed "long long" compilation issues on IA-64 and PPC64
2795 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
2796 was not being correctly defined on ARM and MIPS
2797
2798= Version 0.5 released on 2007-03-01
2799
2800 * Added multiply assembly code for SPARC and Alpha
2801 * Added (beta) support for non-blocking I/O operations
2802 * Implemented session resuming and client authentication
2803 * Fixed some portability issues on WinCE, MINIX 3, Plan9
2804 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
2805 * Improved the performance of the EDH key exchange
2806 * Fixed a bug that caused valid packets with a payload
2807 size of 16384 bytes to be rejected
2808
2809= Version 0.4 released on 2007-02-01
2810
2811 * Added support for Ephemeral Diffie-Hellman key exchange
2812 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
2813 * Various improvement to the modular exponentiation code
2814 * Rewrote the headers to generate the API docs with doxygen
2815 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
2816 generated) and in ssl_parse_client_hello (max. client
2817 version was not properly set), thanks to Didier Rebeix
2818 * Fixed another bug in ssl_parse_client_hello: clients with
2819 cipherlists larger than 96 bytes were incorrectly rejected
2820 * Fixed a couple memory leak in x509_read.c
2821
2822= Version 0.3 released on 2007-01-01
2823
2824 * Added server-side SSLv3 and TLSv1.0 support
2825 * Multiple fixes to enhance the compatibility with g++,
2826 thanks to Xosé Antón Otero Ferreira
2827 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01002828 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00002829 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
2830 * Updated timing.c for improved compatibility with i386
2831 and 486 processors, thanks to Arnaud Cornet
2832
2833= Version 0.2 released on 2006-12-01
2834
2835 * Updated timing.c to support ARM and MIPS arch
2836 * Updated the MPI code to support 8086 on MSVC 1.5
2837 * Added the copyright notice at the top of havege.h
2838 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
2839 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
2840 * Fixed a bug reported by Torsten Lauter in ssl_read_record
2841 * Fixed a bug in rsa_check_privkey that would wrongly cause
2842 valid RSA keys to be dismissed (thanks to oldwolf)
2843 * Fixed a bug in mpi_is_prime that caused some primes to fail
2844 the Miller-Rabin primality test
2845
2846 I'd also like to thank Younès Hafri for the CRUX linux port,
2847 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
2848 who maintains the Debian package :-)
2849
2850= Version 0.1 released on 2006-11-01