blob: 2b51621d6420f6d3dce9545437f4d1619d317114 [file] [log] [blame]
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001mbed TLS ChangeLog (Sorted per branch, date)
Paul Bakker99ed6782011-01-05 14:48:42 +00002
Jaeden Ameroa5079102018-12-06 15:58:27 +00003= mbed TLS 2.7.x branch released xxxx-xx-xx
4
5Bugfix
Simon Butcher7f899b42019-01-08 15:31:37 +00006 * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined.
7 Raised as a comment in #1996.
Simon Butcherc5b6c2f2019-01-23 09:51:48 +01008 * Fix returning the value 1 when mbedtls_ecdsa_genkey failed.
Masashi Honma4a471122018-12-28 05:40:17 +09009 * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326.
Ron Eldor7c733f82018-11-27 10:33:38 +020010 * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
11 Fixes #2190.
Simon Butcher7f899b42019-01-08 15:31:37 +000012
Andres Amaya Garciaf9b2ed02018-11-26 20:57:49 +000013Features
14 * Add MBEDTLS_REMOVE_3DES_CIPHERSUITES to allow removing 3DES ciphersuites
15 from the default list (enabled by default). See
16 https://sweet32.info/SWEET32_CCS16.pdf.
17
Simon Butcher32331302019-01-23 09:53:41 +010018Changes
19 * Include configuration file in all header files that use configuration,
20 instead of relying on other header files that they include.
21 Inserted as an enhancement for #1371
Simon Butcherff719bb2018-09-30 15:44:52 +010022 * Add support for alternative CSR headers, as used by Microsoft and defined
23 in RFC 7468. Found by Michael Ernst. Fixes #767.
Jeffrey Martin55ab90d2019-01-15 09:02:14 -060024 * Fix clobber list in MIPS assembly for large integer multiplication.
25 Previously, this could lead to functionally incorrect assembly being
26 produced by some optimizing compilers, showing up as failures in
27 e.g. RSA or ECC signature operations. Reported in #1722, fix suggested
Jeffrey Martinf7fe1442019-01-16 09:26:15 -060028 by Aurelien Jarno and submitted by Jeffrey Martin.
Andres Amaya Garcia21ade062018-10-30 18:21:41 +000029 * Ciphersuites based on 3DES now have the lowest priority by default.
30
Simon Butcherb22a8082018-12-21 10:52:37 +000031= mbed TLS 2.7.9 branch released 2018-12-21
Jaeden Ameroa5079102018-12-06 15:58:27 +000032
33Bugfix
34 * Fix for Clang, which was reporting a warning for the bignum.c inline
35 assembly for AMD64 targets creating string literals greater than those
36 permitted by the ISO C99 standard. Found by Aaron Jones. Fixes #482.
Jaeden Ameroa7d16ba2018-12-06 16:02:06 +000037 * Fix runtime error in `mbedtls_platform_entropy_poll()` when run
38 through qemu user emulation. Reported and fix suggested by randombit
39 in #1212. Fixes #1212.
Jaeden Amero93bfd1d2018-12-06 16:06:21 +000040 * Fix an unsafe bounds check when restoring an SSL session from a ticket.
41 This could lead to a buffer overflow, but only in case ticket authentication
42 was broken. Reported and fix suggested by Guido Vranken in #659.
Jaeden Ameroa7e5cbd2018-12-06 16:11:22 +000043 * Add explicit integer to enumeration type casts to example program
44 programs/pkey/gen_key which previously led to compilation failure
45 on some toolchains. Reported by phoenixmcallister. Fixes #2170.
Simon Butcher3112d102018-12-20 01:16:16 +000046 * Clarify documentation of mbedtls_ssl_set_own_cert() regarding the absence
47 of check for certificate/key matching. Reported by Attila Molnar, #507.
Jaeden Ameroa5079102018-12-06 15:58:27 +000048
Simon Butcher4a908ca2018-12-01 22:27:25 +000049= mbed TLS 2.7.8 branch released 2018-11-30
Ron Eldorf19a7ab2018-06-20 18:40:21 +030050
Gilles Peskineae97c252018-10-03 13:40:16 +020051Security
Gilles Peskine5d2391e2018-10-05 15:42:52 +020052 * Fix timing variations and memory access variations in RSA PKCS#1 v1.5
53 decryption that could lead to a Bleichenbacher-style padding oracle
Gilles Peskine813bdeb2018-11-29 12:45:01 +010054 attack. In TLS, this affects servers that accept ciphersuites based on
55 RSA decryption (i.e. ciphersuites whose name contains RSA but not
Simon Butcherbe16e382018-12-01 22:46:55 +000056 (EC)DH(E)). Discovered by Eyal Ronen (Weizmann Institute), Robert Gillham
57 (University of Adelaide), Daniel Genkin (University of Michigan),
58 Adi Shamir (Weizmann Institute), David Wong (NCC Group), and Yuval Yarom
59 (University of Adelaide, Data61). The attack is described in more detail
60 in the paper available here: http://cat.eyalro.net/cat.pdf CVE-2018-19608
Gilles Peskine5db9c832018-11-29 12:46:05 +010061 * In mbedtls_mpi_write_binary(), don't leak the exact size of the number
62 via branching and memory access patterns. An attacker who could submit
63 a plaintext for RSA PKCS#1 v1.5 decryption but only observe the timing
64 of the decryption and not its result could nonetheless decrypt RSA
65 plaintexts and forge RSA signatures. Other asymmetric algorithms may
66 have been similarly vulnerable. Reported by Eyal Ronen, Robert Gillham,
67 Daniel Genkin, Adi Shamir, David Wong and Yuval Yarom.
Gilles Peskinef249e372018-09-11 18:53:58 +020068 * Wipe sensitive buffers on the stack in the CTR_DRBG and HMAC_DRBG
69 modules.
70
Gilles Peskine94a779b2018-09-13 22:27:12 +020071API Changes
72 * The new functions mbedtls_ctr_drbg_update_ret() and
73 mbedtls_hmac_drbg_update_ret() are similar to mbedtls_ctr_drbg_update()
74 and mbedtls_hmac_drbg_update() respectively, but the new functions
75 report errors whereas the old functions return void. We recommend that
76 applications use the new functions.
Gilles Peskineae97c252018-10-03 13:40:16 +020077
Simon Butcher20f30d92018-11-19 18:32:22 +000078= mbed TLS 2.7.7 branch released 2018-11-19
Ron Eldorf19a7ab2018-06-20 18:40:21 +030079
Hanno Becker0a08a4a2018-11-02 09:36:45 +000080Security
Simon Butcher357fbee2018-11-08 13:47:21 +000081 * Fix overly strict DN comparison when looking for CRLs belonging to a
Simon Butcher7fd58a92018-11-19 16:01:15 +000082 particular CA. This previously led to ignoring CRLs when the CRL's issuer
Simon Butcher357fbee2018-11-08 13:47:21 +000083 name and the CA's subject name differed in their string encoding (e.g.,
84 one using PrintableString and the other UTF8String) or in the choice of
85 upper and lower case. Reported by Henrik Andersson of Bosch GmbH in issue
86 #1784.
Simon Butcher7fd58a92018-11-19 16:01:15 +000087 * Fix a flawed bounds check in server PSK hint parsing. In case the
88 incoming message buffer was placed within the first 64KiB of address
89 space and a PSK-(EC)DHE ciphersuite was used, this allowed an attacker
90 to trigger a memory access up to 64KiB beyond the incoming message buffer,
91 potentially leading to application crash or information disclosure.
Simon Butcher357fbee2018-11-08 13:47:21 +000092 * Fix mbedtls_mpi_is_prime() to use more rounds of probabilistic testing. The
93 previous settings for the number of rounds made it practical for an
94 adversary to construct non-primes that would be erroneously accepted as
95 primes with high probability. This does not have an impact on the
Simon Butcher7fd58a92018-11-19 16:01:15 +000096 security of TLS, but can matter in other contexts with numbers chosen
97 potentially by an adversary that should be prime and can be validated.
Simon Butcher357fbee2018-11-08 13:47:21 +000098 For example, the number of rounds was enough to securely generate RSA key
99 pairs or Diffie-Hellman parameters, but was insufficient to validate
100 Diffie-Hellman parameters properly.
101 See "Prime and Prejudice" by by Martin R. Albrecht and Jake Massimo and
102 Kenneth G. Paterson and Juraj Somorovsky.
Hanno Becker0a08a4a2018-11-02 09:36:45 +0000103
Ron Eldorf19a7ab2018-06-20 18:40:21 +0300104Bugfix
105 * Fix failure in hmac_drbg in the benchmark sample application, when
106 MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
Simon Butcher651902d2018-09-26 22:35:51 +0100107 * Fix a bug in the update function for SSL ticket keys which previously
108 invalidated keys of a lifetime of less than a 1s. Fixes #1968.
Hanno Becker7e1913b2018-10-17 14:53:05 +0100109 * Fix a bug in the record decryption routine ssl_decrypt_buf()
Simon Butcher7fd58a92018-11-19 16:01:15 +0000110 which led to accepting properly authenticated but improperly
Hanno Becker7e1913b2018-10-17 14:53:05 +0100111 padded records in case of CBC ciphersuites using Encrypt-then-MAC.
Hanno Becker591cdb02018-10-09 12:44:35 +0100112 * Fix wrong order of freeing in programs/ssl/ssl_server2 example
113 application leading to a memory leak in case both
114 MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set.
115 Fixes #2069.
Hanno Becker16a77622018-10-05 09:51:36 +0100116 * Fix memory leak and freeing without initialization in the example
117 program programs/x509/cert_write. Fixes #1422.
Simon Butcher357fbee2018-11-08 13:47:21 +0000118 * Ignore IV in mbedtls_cipher_set_iv() when the cipher mode is
119 MBEDTLS_MODE_ECB. Found by ezdevelop. Fixes for #1091.
Hanno Becker74a1c4b2018-10-15 13:20:28 +0100120 * Zeroize memory used for reassembling handshake messages after use.
121 * Use `mbedtls_zeroize()` instead of `memset()` for zeroization of
122 sensitive data in the example programs aescrypt2 and crypt_and_hash.
Hanno Becker85adbfa2018-10-11 10:54:45 +0100123 * Fix compilation failure for configurations which use compile time
124 replacements of standard calloc/free functions through the macros
125 MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO.
126 Reported by ole-de and ddhome2006. Fixes #882, #1642 and #1706.
Ron Eldorf19a7ab2018-06-20 18:40:21 +0300127
Simon Butcherfa5054f2018-09-26 22:56:03 +0100128Changes
129 * Add tests for session resumption in DTLS.
Simon Butcherf73b4372018-09-26 22:57:24 +0100130 * Close a test gap in (D)TLS between the client side and the server side:
131 test the handling of large packets and small packets on the client side
132 in the same way as on the server side.
Simon Butcher7c9086b2018-05-12 20:28:56 +0100133 * Change the dtls_client and dtls_server samples to work by default over
134 IPv6 and optionally by a build option over IPv4.
Simon Butcher7b28abc2018-11-04 18:51:49 +0000135 * Change the use of Windows threading to use Microsoft Visual C++ runtime
136 calls, rather than Win32 API calls directly. This is necessary to avoid
137 conflict with C runtime usage. Found and fixed by irwir.
Hanno Becker0b0753c2018-10-30 10:08:33 +0000138 * Improve documentation of mbedtls_ssl_get_verify_result().
139 Fixes #517 reported by github-monoculture.
Simon Butcherfa5054f2018-09-26 22:56:03 +0100140
Simon Butcher34997fd2018-08-31 16:07:23 +0100141= mbed TLS 2.7.6 branch released 2018-08-31
Simon Butcher51a46b92018-07-30 22:15:14 +0100142
k-stachowiak6cba5692018-07-09 14:45:00 +0200143Security
k-stachowiak55bea652018-07-16 12:14:18 +0200144 * Fix an issue in the X.509 module which could lead to a buffer overread
145 during certificate extensions parsing. In case of receiving malformed
146 input (extensions length field equal to 0), an illegal read of one byte
147 beyond the input buffer is made. Found and analyzed by Nathan Crandall.
k-stachowiak6cba5692018-07-09 14:45:00 +0200148
Simon Butcher51a46b92018-07-30 22:15:14 +0100149Bugfix
Simon Butchera36fe372018-08-31 12:00:58 +0100150 * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation
151 failure in the function could lead to other buffers being leaked.
Simon Butcherd6a63f42018-09-13 11:59:03 +0100152 * Fixes a missing test dependency on MBEDTLS_ARC4_C. #1890
Jaeden Amero3b691742018-08-10 10:50:34 +0100153 * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails.
154 Fix contributed by Espressif Systems.
Ron Eldor335cf422018-06-21 16:40:24 +0300155 * Add ecc extensions only if an ecc based ciphersuite is used.
Ron Eldor6a5d6e22018-06-28 11:09:09 +0300156 This improves compliance to RFC 4492, and as a result, solves
157 interoperability issues with BouncyCastle. Raised by milenamil in #1157.
Hanno Becker80588002018-08-13 16:36:58 +0100158 * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len()
159 and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941.
Hanno Beckerf38db012018-08-03 09:53:48 +0100160 * Fix a miscalculation of the maximum record expansion in
161 mbedtls_ssl_get_record_expansion() in case of CBC ciphersuites
162 in (D)TLS versions 1.1 or higher. Fixes #1914.
Hanno Becker517e84a2018-08-17 09:47:22 +0100163 * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake
164 with TLS versions 1.1 and earlier when the server requested authentication
165 without providing a list of CAs. This was due to an overly strict bounds
Simon Butcherd6a63f42018-09-13 11:59:03 +0100166 check in parsing the CertificateRequest message, introduced in
167 Mbed TLS 2.12.0. Fixes #1954.
Philippe Antoine84cc74e2018-05-11 11:06:29 +0200168 * Fix undefined shifts with negative values in certificates parsing
169 (found by Catena cyber using oss-fuzz)
Hanno Becker20b5d142017-10-08 16:13:03 +0100170 * Fix memory leak and free without initialization in pk_encrypt
171 and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128.
Simon Butcher51a46b92018-07-30 22:15:14 +0100172
Jaeden Amero9eb78b42018-08-10 11:26:15 +0100173Changes
174 * Improve compatibility with some alternative CCM implementations by using
175 CCM test vectors from RAM.
176
Jaeden Amero83851102018-07-25 15:36:21 +0100177= mbed TLS 2.7.5 branch released 2018-07-25
Andres AGee7157e2016-12-07 10:25:19 +0000178
Gilles Peskineb2d88402018-06-27 10:57:33 +0200179Security
180 * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384,
181 in (D)TLS 1.0 to 1.2, that allowed an active network attacker to
182 partially recover the plaintext of messages under some conditions by
183 exploiting timing measurements. With DTLS, the attacker could perform
184 this recovery by sending many messages in the same connection. With TLS
185 or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only
186 worked if the same secret (for example a HTTP Cookie) has been repeatedly
187 sent over connections manipulated by the attacker. Connections using GCM
188 or CCM instead of CBC, using hash sizes other than SHA-384, or using
189 Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was
190 caused by a miscalculation (for SHA-384) in a countermeasure to the
191 original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi
192 Shamir.
Manuel Pégourié-Gonnard5fcfd032018-06-28 12:10:27 +0200193 * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to
194 1.2, that allowed a local attacker, able to execute code on the local
195 machine as well as manipulate network packets, to partially recover the
Manuel Pégourié-Gonnardaba8c5b2018-07-11 18:27:08 +0200196 plaintext of messages under some conditions by using a cache attack
197 targetting an internal MD/SHA buffer. With TLS or if
198 mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if
199 the same secret (for example a HTTP Cookie) has been repeatedly sent over
200 connections manipulated by the attacker. Connections using GCM or CCM
201 instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected.
202 Found by Kenny Paterson, Eyal Ronen and Adi Shamir.
Manuel Pégourié-Gonnardaeeaaf22018-06-28 10:38:35 +0200203 * Add a counter-measure against a vulnerability in TLS ciphersuites based
204 on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to
205 execute code on the local machine as well as manipulate network packets,
206 to partially recover the plaintext of messages under some conditions (see
207 previous entry) by using a cache attack targeting the SSL input record
208 buffer. Connections using GCM or CCM instead of CBC or using
209 Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson,
210 Eyal Ronen and Adi Shamir.
Gilles Peskineb2d88402018-06-27 10:57:33 +0200211
Simon Butcherf15cfd52018-06-27 11:05:44 +0100212Bugfix
niisato2120ef82018-06-25 20:07:10 +0900213 * Fix compilation error on C++, because of a variable named new.
214 Found and fixed by Hirotaka Niisato in #1783.
Simon Butcherc6bf5b42018-06-24 16:20:56 +0100215 * Fix the inline assembly for the MPI multiply helper function for i386 and
216 i386 with SSE2. Found by László Langó. Fixes #1550
Simon Butcher9a08e442018-06-22 12:02:59 +0100217 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
Simon Butcher41c23b52018-06-28 12:13:57 +0100218 Philippe Antoine. Fixes #1623.
Andres Amaya Garcia294331a2017-07-11 14:39:30 +0100219 * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
220 return value. Found by @davidwu2000. #839
Simon Butchera67b20c2018-06-28 11:59:51 +0100221 * Fix the key_app_writer example which was writing a leading zero byte which
222 was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
Simon Butcher318cd2c2018-07-02 12:00:54 +0100223 * Remove unused headers included in x509.c. Found by Chris Hanson and fixed
224 by Brendan Shanks. Part of a fix for #992.
Ron Eldor22bc7c12018-06-17 14:51:59 +0300225 * Fix compilation error when MBEDTLS_ARC4_C is disabled and
226 MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
Simon Butcher7924d932018-07-19 19:54:18 +0100227 * Added length checks to some TLS parsing functions. Found and fixed by
228 Philippe Antoine from Catena cyber. #1663.
Ron Eldor612a6002017-10-01 17:11:54 +0300229 * Fix namespacing in header files. Remove the `mbedtls` namespacing in
Ron Eldordf9b93e2017-05-14 16:17:33 +0300230 the `#include` in the header files. Resolves #857
Simon Butcherc6a0fd82018-07-24 10:03:41 +0100231 * Fix compiler warning of 'use before initialisation' in
232 mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid
233 Drozd. #1098
Simon Butchera8ee41c2018-07-24 12:59:21 +0100234 * Fix decryption for zero length messages (which contain all padding) when a
235 CBC based ciphersuite is used together with Encrypt-then-MAC. Previously,
236 such a message was wrongly reported as an invalid record and therefore lead
237 to the connection being terminated. Seen most often with OpenSSL using
238 TLS 1.0. Reported by @kFYatek and by Conor Murphy on the forum. Fix
239 contributed by Espressif Systems. Fixes #1632
Andres Amaya Garcia8e346dc2018-07-04 10:01:39 +0100240 * Fix ssl_client2 example to send application data with 0-length content
241 when the request_size argument is set to 0 as stated in the documentation.
242 Fixes #1833.
Simon Butchera6462192018-07-25 17:30:20 +0100243 * Correct the documentation for `mbedtls_ssl_get_session()`. This API has
244 deep copy of the session, and the peer certificate is not lost. Fixes #926.
Simon Butcherf15cfd52018-06-27 11:05:44 +0100245
Simon Butchera063fff2018-07-10 15:20:26 +0100246Changes
Simon Butchera6462192018-07-25 17:30:20 +0100247 * Fail when receiving a TLS alert message with an invalid length, or invalid
248 zero-length messages when using TLS 1.2. Contributed by Espressif Systems.
Simon Butchera063fff2018-07-10 15:20:26 +0100249 * Change the shebang line in Perl scripts to look up perl in the PATH.
250 Contributed by fbrosson in #1533.
251
Simon Butcher662ae9e2018-06-18 14:42:14 +0100252= mbed TLS 2.7.4 branch released 2018-06-18
Moran Peker9259b3b2018-02-25 13:29:03 +0200253
254Bugfix
255 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
256 TrinityTonic. #1359.
Simon Butcher4e5edf32018-06-08 16:23:17 +0100257 * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
258 used by user applications. Found and fixed by Fabio Alessandrelli.
Darryl Green68207f82017-11-27 17:12:14 +0000259 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
Simon Butcherd8ea8d42018-06-01 19:11:55 +0100260 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
261 build to fail. Found by zv-io. Fixes #1651.
Simon Butcher49de6b82018-06-14 08:58:59 +0100262 * Fix compilation warnings with IAR toolchain, on 32 bit platform.
263 Reported by rahmanih in #683
Moran Peker9259b3b2018-02-25 13:29:03 +0200264
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100265Changes
266 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Simon Butchera96b9d42018-06-12 17:42:02 +0100267 * Changed CMake defaults for IAR to treat all compiler warnings as errors.
Simon Butcher02582b22018-06-18 11:56:13 +0100268 * Changed the Clang parameters used in the CMake build files to work for
269 versions later than 3.6. Versions of Clang earlier than this may no longer
270 work. Fixes #1072
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100271
Jaeden Amero1fc4d332018-04-27 13:15:45 +0100272= mbed TLS 2.7.3 branch released 2018-04-30
Andres AGee7157e2016-12-07 10:25:19 +0000273
Hanno Becker9a37e0f2017-09-25 10:51:32 +0100274Security
Simon Butcher88cc9412018-04-30 17:23:00 +0100275 * Fix an issue in the X.509 module which could lead to a buffer overread
276 during certificate validation. Additionally, the issue could also lead to
277 unnecessary callback checks being made or to some validation checks to be
278 omitted. The overread could be triggered remotely, while the other issues
279 would require a non DER-compliant certificate to be correctly signed by a
280 trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
281 luocm. Fixes #825.
282 * Fix the buffer length assertion in the ssl_parse_certificate_request()
283 function which led to an arbitrary overread of the message buffer. The
284 overreads could be caused by receiving a malformed message at the point
285 where an optional signature algorithms list is expected when the signature
286 algorithms section is too short. In builds with debug output, the overread
287 data is output with the debug data.
Andrzej Kurekef30d962018-04-25 05:29:00 -0400288 * Fix a client-side bug in the validation of the server's ciphersuite choice
Simon Butcher88cc9412018-04-30 17:23:00 +0100289 which could potentially lead to the client accepting a ciphersuite it didn't
290 offer or a ciphersuite that cannot be used with the TLS or DTLS version
291 chosen by the server. This could lead to corruption of internal data
292 structures for some configurations.
Hanno Becker9a37e0f2017-09-25 10:51:32 +0100293
Andres AGee7157e2016-12-07 10:25:19 +0000294Bugfix
Simon Butcher88cc9412018-04-30 17:23:00 +0100295 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
Gilles Peskine8980da52018-03-22 21:49:43 +0100296 contributed by Brian J Murray and David Brown.
Gilles Peskined4dc1a02018-03-23 01:42:44 +0100297 * Add missing dependencies in test suites that led to build failures
298 in configurations that omit certain hashes or public-key algorithms.
299 Fixes #1040.
Jaeden Amero5f97be62018-03-26 18:32:14 +0100300 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
301 #1353
Gilles Peskine1dc8e812018-03-27 23:08:53 +0200302 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
Simon Butcher88cc9412018-04-30 17:23:00 +0100303 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
304 Deomid Ryabkov. Fixes #1299, #1475.
305 * Fix the Makefile build process for building shared libraries on Mac OS X.
306 Fixed by mnacamura.
Jethro Beekman004e3712018-02-16 13:11:04 -0800307 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcher88cc9412018-04-30 17:23:00 +0100308 unable to parse keys which had only the optional parameters field of the
309 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
310 * Return the plaintext data more quickly on unpadded CBC decryption, as
311 stated in the mbedtls_cipher_update() documentation. Contributed by
312 Andy Leiserson.
Andrzej Kurekd9594922018-03-26 04:13:24 -0400313 * Fix overriding and ignoring return values when parsing and writing to
314 a file in pk_sign program. Found by kevlut in #1142.
Krzysztof Stachowiak7da50882018-04-04 13:47:40 +0200315 * Fix buffer length assertions in the ssl_parse_certificate_request()
316 function which leads to a potential one byte overread of the message
317 buffer.
Andrzej Kurekc3a3e2d2018-04-23 08:39:13 -0400318 * Fix invalid buffer sizes passed to zlib during record compression and
319 decompression.
Gilles Peskine8980da52018-03-22 21:49:43 +0100320
Gilles Peskine9b9cc612018-03-22 17:03:45 +0100321Changes
Simon Butcher88cc9412018-04-30 17:23:00 +0100322 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
323 independently by Matthieu Volat and Arne Schwabe.
Gilles Peskined4dc1a02018-03-23 01:42:44 +0100324 * Improve testing in configurations that omit certain hashes or
325 public-key algorithms. Includes contributions by Gert van Dijk.
326 * Improve negative testing of X.509 parsing.
Jaeden Ameroef59b732018-03-28 14:21:19 +0100327 * Do not define global mutexes around readdir() and gmtime() in
328 configurations where the feature is disabled. Found and fixed by Gergely
329 Budai.
Andres Amaya Garcia3b4d5c22018-03-27 21:19:50 +0100330 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
331 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
332 without PBES2. Fixed by Marcos Del Sol Vives.
Jaeden Amero0c692cd2018-03-29 11:02:52 +0100333 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
334 Krylov.
Darryl Green28448b22018-03-29 16:05:44 +0100335 * Improve the documentation of mbedtls_ssl_write(). Suggested by
336 Paul Sokolovsky in #1356.
Simon Butcher88cc9412018-04-30 17:23:00 +0100337 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garcia8ee21562018-03-27 19:14:24 +0100338 letter must not be prefixed by '-', such as LLVM. Found and fixed by
339 Alex Hixon.
Andres Amaya Garcia89320a42018-03-25 23:57:09 +0100340 * Allow configuring the shared library extension by setting the DLEXT
Andres Amaya Garcia8ee21562018-03-27 19:14:24 +0100341 environment variable when using the project makefiles.
Gilles Peskine1852d662018-04-04 10:19:24 +0200342 * In the SSL module, when f_send, f_recv or f_recv_timeout report
343 transmitting more than the required length, return an error. Raised by
Jaeden Amerob5f53b12018-04-03 12:09:45 +0100344 Sam O'Connor in #1245.
Jaeden Amerod8e0cec2018-04-03 18:27:54 +0100345 * Improve robustness of mbedtls_ssl_derive_keys against the use of
346 HMAC functions with non-HMAC ciphersuites. Independently contributed
347 by Jiayuan Chen in #1377. Fixes #1437.
Gilles Peskine9b9cc612018-03-22 17:03:45 +0100348
Jaeden Amero9ae1fba2018-03-16 16:30:17 +0000349= mbed TLS 2.7.2 branch released 2018-03-16
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200350
Gilles Peskine955d7042018-03-13 17:24:33 +0100351Security
352 * Verify results of RSA private key operations to defend
353 against Bellcore glitch attack.
Jaeden Amero8a032e62018-03-14 18:01:54 +0000354 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
355 a crash on invalid input.
356 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
357 crash on invalid input.
Manuel Pégourié-Gonnard5a9f46e2018-03-13 11:53:30 +0100358 * Fix CRL parsing to reject CRLs containing unsupported critical
359 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Gilles Peskine955d7042018-03-13 17:24:33 +0100360
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800361Features
362 * Extend PKCS#8 interface by introducing support for the entire SHA
363 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine60130042018-02-14 11:33:30 +0100364 This allows reading encrypted PEM files produced by software that
365 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
366 OpenVPN Inc. Fixes #1339
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800367
Gilles Peskine158fc332018-03-11 00:47:54 +0100368Bugfix
369 * Fix setting version TLSv1 as minimal version, even if TLS 1
370 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
371 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
372 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +0300373 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
374 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +0300375 Nick Wilson on issue #355
Gilles Peskine8eda5ec2018-03-11 00:21:32 +0100376 * In test_suite_pk, pass valid parameters when testing for hash length
377 overflow. #1179
Gilles Peskinec5671bd2018-03-12 23:44:56 +0100378 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
379 by Guido Vranken. #639
Jaeden Ameroc9908f02018-03-15 14:58:24 +0000380 * Log correct number of ciphersuites used in Client Hello message. #918
Andres Amaya Garcia32ec6d42017-08-25 17:17:34 +0100381 * Fix X509 CRT parsing that would potentially accept an invalid tag when
382 parsing the subject alternative names.
Jaeden Amero100273d2018-03-14 17:58:00 +0000383 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
384 that could cause a key exchange to fail on valid data.
385 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
386 could cause a key exchange to fail on valid data.
Jaeden Amero32ae73b2018-03-14 17:59:59 +0000387 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
388 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +0100389 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
390 Found through fuzz testing.
Gilles Peskine158fc332018-03-11 00:47:54 +0100391
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200392Changes
393 * Clarify the documentation of mbedtls_ssl_setup.
394
Jaeden Amero6a4e22c2018-02-23 11:31:04 +0000395= mbed TLS 2.7.1 branch released 2018-02-23
Gilles Peskine27b07542018-02-14 14:07:48 +0100396
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100397Default behavior changes
398 * The truncated HMAC extension now conforms to RFC 6066. This means
399 that when both sides of a TLS connection negotiate the truncated
400 HMAC extension, Mbed TLS can now interoperate with other
401 compliant implementations, but this breaks interoperability with
402 prior versions of Mbed TLS. To restore the old behavior, enable
403 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
404 config.h. Found by Andreas Walz (ivESK, Offenburg University of
405 Applied Sciences).
406
Hanno Becker7dc832b2017-11-16 17:39:34 +0000407Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100408 * Fix implementation of the truncated HMAC extension. The previous
409 implementation allowed an offline 2^80 brute force attack on the
410 HMAC key of a single, uninterrupted connection (with no
411 resumption of the session).
Hanno Becker7dc832b2017-11-16 17:39:34 +0000412
Gilles Peskine27b07542018-02-14 14:07:48 +0100413Bugfix
414 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
415 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +0100416 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +0200417 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
418 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskinef936cb12018-02-27 08:37:52 +0100419 In the context of SSL, this resulted in handshake failure. Reported by
420 daniel in the Mbed TLS forum. #1351
Jaeden Ameroa0d60a42018-02-21 13:32:39 +0000421 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskine27b07542018-02-14 14:07:48 +0100422
423Changes
424 * Fix tag lengths and value ranges in the documentation of CCM encryption.
425 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +0100426 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskine49451922018-02-21 17:59:40 +0100427 * MD functions deprecated in 2.7.0 are no longer inline, to provide
428 a migration path for those depending on the library's ABI.
Gilles Peskine27b07542018-02-14 14:07:48 +0100429
Simon Butcher55fc4e02018-02-05 01:09:13 +0000430= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100431
Gilles Peskine28a0c722017-10-17 19:01:38 +0200432Security
Simon Butcher55fc4e02018-02-05 01:09:13 +0000433 * Fix a heap corruption issue in the implementation of the truncated HMAC
434 extension. When the truncated HMAC extension is enabled and CBC is used,
435 sending a malicious application packet could be used to selectively corrupt
436 6 bytes on the peer's heap, which could potentially lead to crash or remote
437 code execution. The issue could be triggered remotely from either side in
438 both TLS and DTLS. CVE-2018-0488
439 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
440 for the key size, which could potentially lead to crash or remote code
441 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
442 Qualcomm Technologies Inc. CVE-2018-0487
443 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
444 zeros.
445 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
446 64 KiB to the address of the SSL buffer and causing a wrap around.
447 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +0100448 default enabled) maximum fragment length extension is disabled in the
449 config and the application data buffer passed to mbedtls_ssl_write
450 is larger than the internal message buffer (16384 bytes by default), the
451 latter overflows. The exploitability of this issue depends on whether the
452 application layer can be forced into sending such large packets. The issue
453 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +0000454 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
455 Fixes #707.
456 * Add a provision to prevent compiler optimizations breaking the time
457 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +0100458 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +0100459 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +0300460 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
461 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +0100462 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
463 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000464 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
465 data. Previously, trailing zero bytes were detected and omitted for the
466 sake of saving memory, but potentially leading to slight timing
467 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +0100468 * Wipe stack buffer temporarily holding EC private exponent
469 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000470 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +0100471 (server-side). Could result in application crash, but only if an ALPN
472 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100473 * Change default choice of DHE parameters from untrustworthy RFC 5114
474 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
475 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +0200476
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200477Features
478 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +0100479 * The selftest program can execute a subset of the tests based on command
480 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +0200481 * New unit tests for timing. Improve the self-test to be more robust
482 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +0100483 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +0000484 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +0100485 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +0100486 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +0300487 * Add support for alternative implementations for ECDSA, controlled by new
488 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
489 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +0300490 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +0300491 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +0300492 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000493 * Add support for alternative implementation of ECDH, controlled by the
494 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +0300495 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +0300496 The following functions from the ECDH module can be replaced
497 with an alternative implementation:
498 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000499 * Add support for alternative implementation of ECJPAKE, controlled by
500 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000501 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +0200502
Hanno Beckera47023e2017-12-22 17:08:03 +0000503API Changes
504 * Extend RSA interface by multiple functions allowing structure-
505 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +0000506 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +0000507 up RSA contexts from partial key material and having them completed to the
508 needs of the implementation automatically. This allows to setup private RSA
509 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
510 purpose or CRT and/or blinding.
511 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
512 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100513 * The following functions in the message digest modules (MD2, MD4, MD5,
514 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
515 The new functions change the return type from void to int to allow
516 returning error codes when using MBEDTLS_<MODULE>_ALT.
517 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
518 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
519 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100520 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200521
Ron Eldor73a38172017-10-03 15:58:26 +0300522New deprecations
523 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000524 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100525 * Direct manipulation of structure fields of RSA contexts is deprecated.
526 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000527 * Deprecate usage of message digest functions that return void
528 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
529 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
530 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
531 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100532 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
533 parameters from RFC 3526 or the newly added parameters from RFC 7919.
534 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
535 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
536 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000537 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
538 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100539 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100540
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100541Bugfix
542 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
543 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100544 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
545 Found by projectgus and jethrogb, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100546 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300547 * Parse signature algorithm extension when renegotiating. Previously,
548 renegotiated handshakes would only accept signatures using SHA-1
549 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000550 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
551 dates on leap years with 100 and 400 intervals are handled correctly. Found
552 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200553 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
554 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100555 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
556 Found independently by Florian in the mbed TLS forum and by Mishamax.
557 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100558 * Fix variable used before assignment compilation warnings with IAR
559 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000560 * Fix unchecked return codes from AES, DES and 3DES functions in
561 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
562 If a call to one of the functions of the cryptographic primitive modules
563 failed, the error may not be noticed by the function
564 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
565 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100566 * Include configuration file in md.h, to fix compilation warnings.
567 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100568 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
569 writing routines that prevented these functions to work with alternative
570 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100571 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
572 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100573 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000574 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100575 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000576 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100577 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000578 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000579 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100580 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100581 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100582 * Add size-checks for record and handshake message content, securing
583 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300584 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
585 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +0100586 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000587 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100588 * Fix possible memory leaks in mbedtls_gcm_self_test().
589 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +0000590 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
591 RSA test suite where the failure of CTR DRBG initialization lead to
592 freeing an RSA context and several MPI's without proper initialization
593 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +0100594 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +0100595 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
596 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000597 * Fix an issue in the cipher decryption with the mode
598 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
599 Note, this padding mode is not used by the TLS protocol. Found and fixed by
600 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +0100601 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
602 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
603 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
604 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +0100605 structure. Do not assume that zeroizing a context is a correct way to
606 reset it. Found independently by ccli8 on Github.
607 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000608 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
609 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +0100610
611Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +0000612 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +0100613 and the message digest. Further, allow enabling/disabling of authority
614 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +0000615 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
616 particular, don't require P,Q if neither CRT nor blinding are
617 used. Reported and fix proposed independently by satur9nine and sliai
618 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100619 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +0100620 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
621 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +0100622 * Update all internal usage of deprecated message digest functions to the
623 new ones with return codes. In particular, this modifies the
624 mbedtls_md_info_t structure. Propagate errors from these functions
625 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +0000626 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +0100627 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
628 modules where the software implementation can be replaced by a hardware
629 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +0100630 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
631 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100632
Simon Butcher72ea31b2017-08-10 11:51:16 +0100633= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +0200634
Simon Butcherb060cc22017-07-28 01:04:34 +0100635Security
Simon Butcher01971d02017-08-10 10:48:01 +0100636 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherb060cc22017-07-28 01:04:34 +0100637 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
638 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +0100639 (default: 8) intermediates, even when it was not trusted. This could be
640 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +0100641 (the default), the handshake was correctly aborted).
642 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +0100643 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
644 Found by Laurent Simon.
Simon Butcherb060cc22017-07-28 01:04:34 +0100645
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100646Features
647 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia052ac862017-07-12 11:27:05 +0100648 and the context struct mbedtls_platform_context to perform
649 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia586d3772017-07-18 10:24:26 +0100650 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +0100651 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +0100652 some embedded environments to provide a means of initialising underlying
653 cryptographic acceleration hardware.
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100654
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200655API Changes
656 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
657 API consistent with mbed TLS 2.5.0. Specifically removed the inline
658 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +0100659 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
660 by James Cowgill. #978
Simon Butcherb060cc22017-07-28 01:04:34 +0100661 * Certificate verification functions now set flags to -1 in case the full
662 chain was not verified due to an internal error (including in the verify
663 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +0100664 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherb060cc22017-07-28 01:04:34 +0100665 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +0100666 a fatal error in the verify callback.
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200667
Ron Eldor5a21fd62016-12-16 16:15:56 +0200668Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +0100669 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
670 Reported by roberto. #716
671 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor8ab05952017-01-09 19:27:59 +0200672 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +0100673 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +0100674 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
675 in the case of an error. Found by redplait. #590
Ron Eldor7269fee2017-01-12 14:50:50 +0200676 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100677 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciaaa27dfe2017-05-04 11:05:55 +0100678 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
679 compilation when using ARM Compiler 6.
Simon Butcher00d3cc62017-07-26 17:25:55 +0100680 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100681 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher00d3cc62017-07-26 17:25:55 +0100682 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
683 KNOX Security, Samsung Research America
Andres AG2e3ddfa2017-02-17 13:54:43 +0000684 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100685 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e3ddfa2017-02-17 13:54:43 +0000686 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
687 KNOX Security, Samsung Research America
Simon Butcher00d3cc62017-07-26 17:25:55 +0100688 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100689 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher00d3cc62017-07-26 17:25:55 +0100690 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +0100691 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +0100692 function mbedtls_time() instead. Found by wairua. #666
693 * Avoid shadowing of time and index functions through mbed TLS function
694 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +0200695
Janos Follathbfea4a72017-06-22 10:02:07 +0100696Changes
Janos Follath32529402017-06-22 10:02:07 +0100697 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +0100698 64-bit division. This is useful on embedded platforms where 64-bit division
699 created a dependency on external libraries. #708
Janos Follathbfea4a72017-06-22 10:02:07 +0100700 * Removed mutexes from ECP hardware accelerator code. Now all hardware
701 accelerator code in the library leaves concurrency handling to the
702 platform. Reported by Steven Cooreman. #863
Andres Amaya Garcia92fcfe22017-06-26 12:57:44 +0100703 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
704 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100705 * Added a test script that can be hooked into git that verifies commits
706 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +0100707 * Improve documentation of PKCS1 decryption functions.
Janos Follathbfea4a72017-06-22 10:02:07 +0100708
Simon Butcherf2a597f2017-06-20 23:08:10 +0100709= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +0100710
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200711Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +0100712 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
713 The issue could only happen client-side with renegotiation enabled.
714 Could result in DoS (application crash) or information leak
715 (if the application layer sent data read from mbedtls_ssl_read()
716 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +0200717 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
718 certificate verification. SHA-1 can be turned back on with a compile-time
719 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +0200720 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
721 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +0200722 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
723 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200724
Hanno Beckereccf60c2017-06-05 15:19:01 +0100725Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +0100726 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
727 valid C and they prevented the test from compiling in Visual Studio 2015
728 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +0100729 * Fix insufficient support for signature-hash-algorithm extension,
730 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +0100731 * Fix behaviour that hid the original cause of fatal alerts in some cases
732 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +0200733 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100734 * Fix SSLv3 renegotiation behaviour and stop processing data received from
735 peer after sending a fatal alert to refuse a renegotiation attempt.
736 Previous behaviour was to keep processing data even after the alert has
737 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +0100738 * Accept empty trusted CA chain in authentication mode
739 MBEDTLS_SSL_VERIFY_OPTIONAL.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100740 Found by jethrogb. #864
741 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
742 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
743 reflect bad EC curves within verification result.
744 * Fix bug that caused the modular inversion function to accept the invalid
745 modulus 1 and therefore to hang. Found by blaufish. #641.
746 * Fix incorrect sign computation in modular exponentiation when the base is
747 a negative MPI. Previously the result was always negative. Found by Guido
748 Vranken.
749 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
750 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +0200751
Gilles Peskine36091fe2017-05-03 16:55:03 +0200752Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +0100753 * Send fatal alerts in more cases. The previous behaviour was to skip
754 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +0000755 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +0100756 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +0000757 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +0200758
Simon Butcher9f770172017-05-15 15:13:59 +0100759= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100760
Janos Follath45182a02017-03-23 10:41:56 +0000761Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +0100762 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +0100763 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
764 Simon.
Janos Follath45182a02017-03-23 10:41:56 +0000765 * Add exponent blinding to RSA private operations as a countermeasure
766 against side-channel attacks like the cache attack described in
767 https://arxiv.org/abs/1702.08719v2.
768 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
769 Clémentine Maurice and Stefan Mangard.
770
Simon Butcher4775e832017-05-13 22:56:08 +0100771Features
Janos Follath5a1c0e72017-06-16 09:00:07 +0100772 * Add hardware acceleration support for the Elliptic Curve Point module.
773 This involved exposing parts of the internal interface to enable
774 replacing the core functions and adding and alternative, module level
775 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +0100776 * Add a new configuration option to 'mbedtls_ssl_config' to enable
777 suppressing the CA list in Certificate Request messages. The default
778 behaviour has not changed, namely every configured CAs name is included.
779
Andres AGf5bf7182017-03-03 14:09:56 +0000780API Changes
781 * The following functions in the AES module have been deprecated and replaced
782 by the functions shown below. The new functions change the return type from
783 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
784 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
785 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
786 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
787
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100788Bugfix
789 * Remove macros from compat-1.3.h that correspond to deleted items from most
790 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100791 * Fixed issue in the Threading module that prevented mutexes from
792 initialising. Found by sznaider. #667 #843
793 * Add checks in the PK module for the RSA functions on 64-bit systems.
794 The PK and RSA modules use different types for passing hash length and
795 without these checks the type cast could lead to data loss. Found by Guido
796 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100797
Simon Butcherb65c2be2017-03-10 18:50:44 +0000798= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +0100799
Janos Follath182013f2016-10-25 10:50:22 +0100800Security
Simon Butcherb65c2be2017-03-10 18:50:44 +0000801 * Add checks to prevent signature forgeries for very large messages while
802 using RSA through the PK module in 64-bit systems. The issue was caused by
803 some data loss when casting a size_t to an unsigned int value in the
804 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
805 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +0000806 * Fixed potential livelock during the parsing of a CRL in PEM format in
807 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
808 characters after the footer could result in the execution of an infinite
809 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
810 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +0100811 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
812 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +0000813 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +0000814 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
815 when verifying the validity of a key on secp224k1. This could be
816 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +0000817 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +0000818 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
819 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +0000820
Andres AG703990b2016-10-24 11:23:36 +0100821Bugfix
Andres AGd1650662016-12-09 17:26:23 +0000822 * Fix output certificate verification flags set by x509_crt_verify_top() when
823 traversing a chain of trusted CA. The issue would cause both flags,
824 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
825 set when the verification conditions are not met regardless of the cause.
826 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +0000827 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
828 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
829 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +0000830 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
831 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +0000832 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +0000833 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
834 would compare 64 bits of the record counter instead of 48 bits as indicated
835 in RFC 6347 Section 4.3.1. This could cause the execution of the
836 renegotiation routines at unexpected times when the protocol is DTLS. Found
837 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +0100838 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +0100839 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +0100840 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +0000841 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
842 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
843 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
844 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
845 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
846 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +0000847 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
848 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +0000849 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
850 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +0000851 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
852 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +0000853 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
854 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +0000855 * Fixed the templates used to generate project and solution files for Visual
856 Studio 2015 as well as the files themselves, to remove a build warning
857 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +0200858 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
859 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +0000860 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
861 number to write in hexadecimal is negative and requires an odd number of
862 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +0000863 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
864 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +0100865
Janos Follath4c006cd2016-12-13 14:14:03 +0000866= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +0000867
868Changes
869 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
870 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
871 Authentication – October 2016
872
Simon Butcher19dbd412016-10-16 19:35:49 +0100873= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +0300874
Andres AG60dbc932016-09-02 15:23:48 +0100875Security
Simon Butcheref8fa012016-10-16 00:44:08 +0100876 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
877 with RFC-5116 and could lead to session key recovery in very long TLS
878 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
879 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
880 https://eprint.iacr.org/2016/475.pdf
881 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +0100882 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +0100883 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +0100884 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +0100885
Simon Butchercf8c1f42016-09-02 21:29:39 +0300886Features
Simon Butcher21c54812016-10-05 14:17:37 +0100887 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
888 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300889 * Added hardware entropy selftest to verify that the hardware entropy source
890 is functioning correctly.
891 * Added a script to print build environment info for diagnostic use in test
892 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +0100893 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
894 configure the maximum length of a file path that can be buffered when
895 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +0100896 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +0100897 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +0100898 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
899 to configure the minimum number of bytes for entropy sources using the
900 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300901
902Bugfix
903 * Fix for platform time abstraction to avoid dependency issues where a build
904 may need time but not the standard C library abstraction, and added
905 configuration consistency checks to check_config.h
906 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +0100907 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
908 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +0300909 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
910 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +0300911 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
912 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +0100913 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +0100914 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +0100915 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +0100916 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +0100917 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +0100918 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +0100919 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
920 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
921 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +0100922 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
923 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +0100924 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +0100925 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +0100926 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +0100927 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +0100928 * Fix potential byte overread when verifying malformed SERVER_HELLO in
929 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +0100930 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +0100931 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +0100932 * Fix compatibility issue with Internet Explorer client authentication,
933 where the limited hash choices prevented the client from sending its
934 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +0100935 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300936
937Changes
938 * Extended test coverage of special cases, and added new timing test suite.
939 * Removed self-tests from the basic-built-test.sh script, and added all
940 missing self-tests to the test suites, to ensure self-tests are only
941 executed once.
942 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
943 * Added support for a Yotta specific configuration file -
944 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +0100945 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +0100946 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +0100947 * Renamed source file library/net.c to library/net_sockets.c to avoid
948 naming collision in projects which also have files with the common name
949 net.c. For consistency, the corresponding header file, net.h, is marked as
950 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +0100951 * Changed the strategy for X.509 certificate parsing and validation, to no
952 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300953
Simon Butcher46125fb2016-06-27 19:43:55 +0100954= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100955
Janos Follathcc4eba72016-02-10 16:25:55 +0000956Security
Janos Follathe43b81a2016-02-10 16:25:55 +0000957 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +0000958 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +0000959 * Fix potential integer overflow to buffer overflow in
960 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +0100961 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +0100962 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +0000963 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
964 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +0000965
Simon Butcher3fe6cd32016-04-26 19:51:29 +0100966Features
967 * Support for platform abstraction of the standard C library time()
968 function.
969
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100970Bugfix
971 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
972 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100973 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +0000974 * Fix potential build failures related to the 'apidoc' target, introduced
975 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100976 * Fix issue in Makefile that prevented building using armar. #386
Janos Follath4ae5c292016-02-10 11:27:43 +0000977 * Fix memory leak that occured only when ECJPAKE was enabled and ECDHE and
978 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +0000979 * Fix an issue that caused valid certificates to be rejected whenever an
980 expired or not yet valid certificate was parsed before a valid certificate
981 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +0100982 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +0000983 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +0100984 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +0000985 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
986 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +0100987 * Fix issue that caused a crash if invalid curves were passed to
988 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +0100989 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +0100990 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +0100991 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +0100992 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100993
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +0100994Changes
995 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
996 don't use the optimized assembly for bignum multiplication. This removes
997 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +0100998 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +0100999 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
1000 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +01001001 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
1002 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +01001003
1004= mbed TLS 2.2.1 released 2016-01-05
1005
1006Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +01001007 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +01001008 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +00001009 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +01001010 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
1011 SLOTH attack on TLS 1.2 server authentication (other attacks from the
1012 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001013 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +00001014
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001015Bugfix
1016 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
1017 * Fix bug in certificate validation that caused valid chains to be rejected
1018 when the first intermediate certificate has pathLenConstraint=0. Found by
1019 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +00001020 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +00001021 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +01001022 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001023 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +02001024 datagram if a single record in a datagram is unexpected, instead only
1025 drop the record and look at subsequent records (if any are present) in
1026 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +02001027
1028= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +00001029
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +02001030Security
1031 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
1032 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +00001033 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001034 * Fix potential heap corruption on Windows when
1035 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
1036 triggered remotely. Found by Guido Vranken, Intelworks.
1037 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +02001038 Cannot be triggered remotely unless you create X.509 certificates based
1039 on untrusted input or write keys of untrusted origin. Found by Guido
1040 Vranken, Intelworks.
1041 * The X509 max_pathlen constraint was not enforced on intermediate
1042 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001043 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001044
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001045Features
1046 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
1047 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001048 * Added a key extraction callback to accees the master secret and key
1049 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +02001050
1051Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +00001052 * Self-signed certificates were not excluded from pathlen counting,
1053 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001054 provided by Janos Follath. #319
1055 * Fix build error with configurations where ECDHE-PSK is the only key
1056 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001057 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +02001058 ECHD-ECDSA if the only key exchange. Multiple reports. #310
1059 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +02001060 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +09001061 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
1062 size/curve against the profile. Before that, there was no way to set a
1063 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001064 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +01001065 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
1066 Found by Kurt Danielson. #292
1067 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001068 * Fix bug in ASN.1 encoding of booleans that caused generated CA
1069 certificates to be rejected by some applications, including OS X
1070 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +01001071
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +01001072Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +01001073 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
1074 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001075
1076= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +01001077
1078Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +02001079 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
1080 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +01001081 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +02001082 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +01001083 once in the same handhake and mbedtls_ssl_conf_psk() was used.
1084 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
1085 remotely.
1086 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +01001087 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +01001088 Found by Guido Vranken, Intelworks. Not triggerable remotely.
1089 * Fix potential buffer overflow in mbedtls_mpi_read_string().
1090 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
1091 of TLS, but might be in other uses. On 32 bit machines, requires reading a
1092 string of close to or larger than 1GB to exploit; on 64 bit machines, would
1093 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +02001094 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +01001095 on crafted PEM input data. Found and fix provided by Guido Vranken,
1096 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +02001097 accept PEM data from an untrusted source.
1098 * Fix possible heap buffer overflow in base64_encoded() when the input
1099 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +01001100 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +01001101 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001102 the same mbedtls_ssl_config object and memory allocation fails. Found by
1103 Guido Vranken, Intelworks. Cannot be forced remotely.
1104 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +01001105 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001106 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +01001107 Found by Guido Vranken, Intelworks.
1108
1109Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +01001110 * Fix compile error in net.c with musl libc. Found and patch provided by
1111 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +01001112 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +01001113
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001114Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001115 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
1116 domain names are compliant with RFC 1035.
1117 * Fixed paths for check_config.h in example config files. (Found by bachp)
1118 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001119
1120= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001121
1122Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001123 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +01001124 signatures. (Found by Florian Weimer, Red Hat.)
1125 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +02001126 * Fix possible client-side NULL pointer dereference (read) when the client
1127 tries to continue the handshake after it failed (a misuse of the API).
1128 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +01001129 afl-fuzz.)
1130
1131Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +02001132 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
1133 * Fix off-by-one error in parsing Supported Point Format extension that
1134 caused some handshakes to fail.
1135
1136Changes
1137 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
1138 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +01001139 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001140 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001141 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001142 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +02001143 detected and mbedtls_ssl_read() will return
1144 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001145 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001146
1147= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +02001148
1149Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +02001150 * Added support for yotta as a build system.
1151 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001152
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +02001153Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001154 * Fix segfault in the benchmark program when benchmarking DHM.
1155 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +02001156 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +02001157 * Fix bug when parsing a ServerHello without extensions (found by David
1158 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +02001159 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
1160 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +02001161 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
1162 installed (found by Rawi666).
1163 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +02001164 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +02001165 (found by robotanarchy) (#232).
1166 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +02001167 tests (found by robotanarchy) (#232).
1168 * Fix missing -static-libgcc when building shared libraries for Windows
1169 with make.
Simon Butcher52754592015-09-03 13:06:01 +01001170 * Fix link error when building shared libraries for Windows with make.
1171 * Fix error when loading libmbedtls.so.
1172 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
1173 be always used (found by dcb314) (#235)
1174 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
1175 result trying to unlock an unlocked mutex on invalid input (found by
1176 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001177 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +02001178 * Fix memory corruption on client with overlong PSK identity, around
1179 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001180 Aleksandrs Saveljevs) (#238)
1181 * Fix unused function warning when using MBEDTLS_MDx_ALT or
1182 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +02001183 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
1184
1185Changes
Simon Butcher52754592015-09-03 13:06:01 +01001186 * The PEM parser now accepts a trailing space at end of lines (#226).
1187 * It is now possible to #include a user-provided configuration file at the
1188 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
1189 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001190 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +01001191 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +01001192 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001193 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001194 Hugo Leisink) (#210).
1195 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
1196 length.
1197
1198= mbed TLS 2.0.0 released 2015-07-13
1199
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001200Features
1201 * Support for DTLS 1.0 and 1.2 (RFC 6347).
1202 * Ability to override core functions from MDx, SHAx, AES and DES modules
1203 with custom implementation (eg hardware accelerated), complementing the
1204 ability to override the whole module.
1205 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +02001206 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001207 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +02001208 which algorithms and key sizes (curves for ECDSA) are acceptable.
1209 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001210 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001211 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001212 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001213
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +02001214API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +02001215 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
1216 You now need to link to all of them if you use TLS for example.
1217 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001218 Some names have been further changed to make them more consistent.
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001219 Migration helpers scripts/rename.pl and include/mbedlts/compat-1.3.h are
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001220 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001221 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +02001222 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001223 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +02001224 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001225 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
1226 * The following _init() functions that could return errors have
Tillmann Karras588ad502015-09-25 04:27:22 +02001227 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001228 should generally be the first function called on this context after init:
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001229 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001230 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
1231 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
1232 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
1233 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001234 Note that for mbedtls_ssl_setup(), you need to be done setting up the
1235 ssl_config structure before calling it.
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001236 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
1237 ssl_set_session() and ssl_set_client_transport_id(), plus
1238 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
1239 (see rename.pl and compat-1.3.h above) and their first argument's type
1240 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001241 * ssl_set_bio() changed signature (contexts merged, order switched, one
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01001242 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001243 * The following functions have been introduced and must be used in callback
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01001244 implementations (SNI, PSK) instead of their *conf counterparts:
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001245 mbedtls_ssl_set_hs_own_cert()
1246 mbedtls_ssl_set_hs_ca_chain()
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02001247 mbedtls_ssl_set_hs_psk()
1248 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001249 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001250 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001251 pointer, parameters reordered).
1252 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
1253 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001254 * The SSL debug callback gained two new arguments (file name, line number).
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001255 * Debug modes were removed.
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01001256 * mbedtls_ssl_conf_truncated_hmac() now returns void.
1257 * mbedtls_memory_buffer_alloc_init() now returns void.
1258 * X.509 verification flags are now an uint32_t. Affect the signature of:
1259 mbedtls_ssl_get_verify_result()
1260 mbedtls_x509_ctr_verify_info()
1261 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02001262 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
1263 * The following functions changed prototype to avoid an in-out length
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02001264 parameter:
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02001265 mbedtls_base64_encode()
1266 mbedtls_base64_decode()
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02001267 mbedtls_mpi_write_string()
1268 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02001269 * In the NET module, all "int" and "int *" arguments for file descriptors
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02001270 changed type to "mbedtls_net_context *".
1271 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01001272 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
1273 return void.
1274 * ecdsa_write_signature() gained an addtional md_alg argument and
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01001275 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02001276 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
1277 * Last argument of x509_crt_check_key_usage() and
1278 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00001279 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02001280 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
1281 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02001282 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001283 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
1284 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02001285 length parameter to include the terminating null byte for PEM input.
1286 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001287 * calloc() is now used instead of malloc() everywhere. API of platform
1288 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02001289 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001290 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
1291 (support for renegotiation now needs explicit enabling in config.h).
1292 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001293 in config.h
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02001294 * net_connect() and net_bind() have a new 'proto' argument to choose
1295 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02001296 Their 'port' argument type is changed to a string.
1297 * Some constness fixes
1298
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02001299Removals
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02001300 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001301 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
1302 mbedtls_ecp_muladd().
1303 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
1304 (use generic functions from md.h)
1305 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
1306 waiting function.
1307 * Removed test DHM parameters from the test certs module.
1308 * Removed the PBKDF2 module (use PKCS5).
1309 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
1310 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
1311 * Removed openssl.h (very partial OpenSSL compatibility layer).
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001312 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
1313 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
1314 been removed (compiler is required to support 32-bit operations).
1315 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001316 * Removed test program o_p_test, the script compat.sh does more.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001317 * Removed test program ssl_test, superseded by ssl-opt.sh.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001318 * Removed helper script active-config.pl
1319
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02001320New deprecations
1321 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001322 argument (allowing memory savings if HMAC is not used)
1323
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01001324Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001325 * Renamed a few headers to include _internal in the name. Those headers are
1326 not supposed to be included by users.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001327 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001328 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02001329 * Changed cipher_base_t into an opaque structure.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001330 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
1331 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001332 * Removed r and s from ecdsa_context
1333 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01001334
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02001335Default behavior changes
1336 * The default minimum TLS version is now TLS 1.0.
1337 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01001338 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001339 * Support for receiving SSLv2 ClientHello is now disabled by default at
1340 compile time.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01001341 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02001342 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
1343 enabled in the default configuration, this is only noticeable if using a
1344 custom config.h
1345 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
1346 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
1347 chain verification.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001348 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001349 * The following functions are now case-sensitive:
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001350 mbedtls_cipher_info_from_string()
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001351 mbedtls_ecp_curve_info_from_name()
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001352 mbedtls_md_info_from_string()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001353 mbedtls_ssl_ciphersuite_from_string()
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001354 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001355
1356Requirement changes
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001357 * The minimum MSVC version required is now 2010 (better C99 support).
1358 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
1359 * Compiler is required to support C99 types such as long long and uint32_t.
1360
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02001361API changes from the 1.4 preview branch
1362 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
1363 new prototype, and mbedtls_ssl_set_read_timeout().
1364 * The following functions now return void:
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02001365 mbedtls_ssl_conf_transport()
1366 mbedtls_ssl_conf_max_version()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001367 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001368 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
1369 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
1370 an example implementation, see mbedtls_timing_delay_context and
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001371 mbedtls_timing_set/get_delay().
1372 * With UDP sockets, it is no longer necessary to call net_bind() again
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001373 after a successful net_accept().
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001374
1375Changes
1376 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02001377 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01001378 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
1379 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02001380
1381= mbed TLS 1.3 branch
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001382
1383Security
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02001384 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
1385 extendedKeyUsage on the leaf certificate was lost (results not accessible
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02001386 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02001387 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02001388 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01001389
1390Features
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001391 * Improve ECC performance by using more efficient doubling formulas
1392 (contributed by Peter Dettman).
1393 * Add x509_crt_verify_info() to display certificate verification results.
1394 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00001395 (contributed by Daniel Kahn Gillmor).
1396 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00001397 * Add support for id-at-uniqueIdentifier in X.509 names.
1398 * Add support for overriding snprintf() (except on Windows) and exit() in
1399 the platform layer.
1400 * Add an option to use macros instead of function pointers in the platform
1401 layer (helps get rid of unwanted references).
1402 * Improved Makefiles for Windows targets by fixing library targets and making
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001403 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001404 * The benchmark program also prints heap usage for public-key primitives
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001405 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001406 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001407 speed and RAM (heap only for now) usage.
1408 * New script memory.sh helps measuring the ROM and RAM requirements of two
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01001409 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01001410 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001411 warnings on use of deprecated functions (with GCC and Clang only).
1412 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001413 errors on use of deprecated functions.
1414
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001415Bugfix
1416 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001417 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
1418 * Fix bug in entropy.c when THREADING_C is also enabled that caused
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001419 entropy_free() to crash (thanks to Rafał Przywara).
1420 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001421 once on the same context.
1422 * Fix bug in ssl_mail_client when password is longer that username (found
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001423 by Bruno Pape).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001424 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1425 (detected by Clang's 3.6 UBSan).
1426 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001427 initialized but not set (found by pravic).
1428 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001429 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001430 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001431 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1432 ssl_write() is called before the handshake is finished (introduced in
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001433 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001434 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1435 rejected.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001436 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001437 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
1438 * Fix hardclock() (only used in the benchmarking program) with some
1439 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001440 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001441 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1442 platforms.
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001443 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
1444 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001445 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1446 in 1.3.10).
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001447 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
1448 * Add missing dependency on SHA-256 in some x509 programs (reported by
1449 Gergely Budai).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001450 * Fix bug related to ssl_set_curves(): the client didn't check that the
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001451 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001452
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001453Changes
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001454 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1455 * Remove potential sources of timing variations (some contributed by Pascal
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001456 Junod).
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001457 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001458 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
1459 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001460 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
1461 more flexible (warning: OFLAGS is not used any more) (see the README)
1462 (contributed by Alon Bar-Lev).
1463 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001464 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001465 * Move from SHA-1 to SHA-256 in example programs using signatures
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001466 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001467 * Remove some unneeded inclusions of header files from the standard library
1468 "minimize" others (eg use stddef.h if only size_t is needed).
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001469 * Change #include lines in test files to use double quotes instead of angle
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001470 brackets for uniformity with the rest of the code.
1471 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001472
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001473= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001474Security
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001475 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001476 full and polarssl_free() is called (found by Mark Hasemeyer)
1477 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1478 not by default).
1479 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001480 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001481 client certificate) (found using Codenomicon Defensics).
1482 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1483 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001484 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001485 * Fix potential stack overflow while parsing crafted X.509 certificates
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001486 (TLS server is not affected if it doesn't ask for a client certificate)
1487 (found using Codenomicon Defensics).
1488 * Fix timing difference that could theoretically lead to a
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001489 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001490 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001491
1492Features
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001493 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001494 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
Paul Bakker6152b022015-04-14 15:00:09 +02001495 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001496 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001497 * Add x509_crl_parse_der().
1498 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001499 length of an X.509 verification chain.
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001500 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001501 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
1502 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001503 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001504 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1505 a compatible enough libc (eg uClibc).
1506 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001507 while using the default ciphersuite list.
1508 * Added new error codes and debug messages about selection of
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001509 ciphersuite/certificate.
1510
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001511Bugfix
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001512 * Stack buffer overflow if ctr_drbg_update() is called with too large
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001513 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1514 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001515 if memory_buffer_alloc_init() was called with buf not aligned and len not
1516 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001517 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001518 by Julian Ospald).
1519 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001520 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1521 multiple of 8 (found by Gergely Budai).
1522 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1523 Peter Vaskovic).
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001524 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1525 * ssl_get_verify_result() now works even if the handshake was aborted due
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001526 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001527 * Skip writing and parsing signature_algorithm extension if none of the
1528 key exchanges enabled needs certificates. This fixes a possible interop
1529 issue with some servers when a zero-length extension was sent. (Reported
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001530 by Peter Dettman.)
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001531 * On a 0-length input, base64_encode() did not correctly set output length
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001532 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001533
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001534Changes
1535 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
Paul Bakkere522d0f2015-01-14 16:12:48 +01001536 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001537 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001538 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001539 * Forbid repeated extensions in X.509 certificates.
1540 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001541 * A specific error is now returned when there are ciphersuites in common
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001542 but none of them is usable due to external factors such as no certificate
Paul Bakker9eac4f72014-10-20 13:56:15 +02001543 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001544 * It is now possible to disable negotiation of truncated HMAC server-side
1545 at runtime with ssl_set_truncated_hmac().
1546 * Example programs for SSL client and server now disable SSLv3 by default.
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001547 * Example programs for SSL client and server now disable RC4 by default.
Paul Bakkerb082bb52014-10-20 13:37:51 +02001548 * Use platform.h in all test suites and programs.
1549
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001550= PolarSSL 1.3.9 released 2014-10-20
Paul Bakkerb082bb52014-10-20 13:37:51 +02001551Security
1552 * Lowest common hash was selected from signature_algorithms extension in
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001553 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001554 * Remotely-triggerable memory leak when parsing some X.509 certificates
1555 (server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001556 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001557 * Remotely-triggerable memory leak when parsing crafted ClientHello
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001558 (not affected if ECC support was compiled out) (found using Codenomicon
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001559 Defensics).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001560
1561Bugfix
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001562 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001563 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
1564 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001565 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1566 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001567 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1568 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001569 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001570 * ssl_read() could return non-application data records on server while
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001571 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001572 * Server-initiated renegotiation would fail with non-blocking I/O if the
1573 write callback returned WANT_WRITE when requesting renegotiation.
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001574 * ssl_close_notify() could send more than one message in some circumstances
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001575 with non-blocking I/O.
1576 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1577 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001578 * Fix compile error with armcc in mpi_is_prime()
1579 * Fix potential bad read in parsing ServerHello (found by Adrien
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02001580 Vialletelle).
1581
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001582Changes
1583 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02001584 standard defining how to use SHA-2 with SSL 3.0).
1585 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02001586 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001587 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
1588 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001589 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
Paul Bakker1910aa72014-07-11 11:28:56 +02001590 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02001591 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
1592 RSA keys.
1593 * Accept spaces at end of line or end of buffer in base64_decode().
1594 * X.509 certificates with more than one AttributeTypeAndValue per
1595 RelativeDistinguishedName are not accepted any more.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001596
1597= PolarSSL 1.3.8 released 2014-07-11
1598Security
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02001599 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1600 It was possible to crash the server (and client) using crafted messages
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02001601 when a GCM suite was chosen.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02001602
1603Features
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02001604 * Add CCM module and cipher mode to Cipher Layer
1605 * Support for CCM and CCM_8 ciphersuites
Paul Bakker23647b42014-07-04 15:00:12 +02001606 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
1607 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02001608 * Blowfish in the cipher layer now supports variable length keys.
1609 * Add example config.h for PSK with CCM, optimized for low RAM usage.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001610 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Paul Bakker863989b2014-06-12 21:49:01 +02001611 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
1612 from the default list (inactive by default).
1613 * Add server-side enforcement of sent renegotiation requests
Paul Bakker34617722014-06-13 17:20:13 +02001614 (ssl_set_renegotiation_enforced())
1615 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02001616 ciphersuites to use and save some memory if the list is small.
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02001617
1618Changes
Paul Bakker28476e22014-07-01 15:59:04 +02001619 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
1620 required on some platforms (e.g. OpenBSD)
Paul Bakker863989b2014-06-12 21:49:01 +02001621 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
Paul Bakker5593f7c2014-05-06 10:29:28 +02001622 against unwanted compiler optimizations
1623 * md_list() now returns hashes strongest first
Paul Bakker1ebc0c52014-05-22 15:47:58 +02001624 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
Paul Bakkerdff31392014-05-22 15:06:41 +02001625 strongest offered by client.
Paul Bakker0f651c72014-05-22 15:12:19 +02001626 * All public contexts have _init() and _free() functions now for simpler
1627 usage pattern
Paul Bakker49033ba2014-06-12 21:46:13 +02001628
1629Bugfix
1630 * Fix in debug_print_msg()
1631 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakker3c38f292014-06-13 17:37:46 +02001632 * Remove less-than-zero checks on unsigned numbers
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001633 * Stricter check on SSL ClientHello internal sizes compared to actual packet
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02001634 size (found by TrustInSoft)
1635 * Fix WSAStartup() return value check (found by Peter Vaskovic)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001636 * Other minor issues (found by Peter Vaskovic)
1637 * Fix symlink command for cross compiling with CMake (found by Andre
1638 Heinecke)
1639 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02001640 * Very small records were incorrectly rejected when truncated HMAC was in
1641 use with some ciphersuites and versions (RC4 in all versions, CBC with
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02001642 versions < TLS 1.1).
1643 * Very large records using more than 224 bytes of padding were incorrectly
1644 rejected with CBC-based ciphersuites and TLS >= 1.1
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07001645 * Very large records using less padding could cause a buffer overread of up
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02001646 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
1647 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02001648 been removed in 1.3.6.)
1649 * Restore ability to locally trust a self-signed cert that is not a proper
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02001650 CA for use as an end entity certificate. (This had been removed in
1651 1.3.6.)
1652 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02001653 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
Paul Bakkerd5983182014-07-04 13:50:31 +02001654 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1655 * Fix off-by-one error in parsing Supported Point Format extension that
Paul Bakker6c343d72014-07-10 14:36:19 +02001656 caused some handshakes to fail.
1657 * Fix possible miscomputation of the premaster secret with DHE-PSK key
Paul Bakker5593f7c2014-05-06 10:29:28 +02001658 exchange that caused some handshakes to fail with other implementations.
Paul Bakker47431b62014-05-02 13:27:13 +02001659 (Failure rate <= 1/255 with common DHM moduli.)
Paul Bakkereaebbd52014-04-25 15:04:14 +02001660 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerc73079a2014-04-25 16:34:30 +02001661 * Fix base64_decode() to return and check length correctly (in case of
1662 tight buffers)
Paul Bakker0f90d7d2014-04-30 11:49:44 +02001663 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
1664 by Hui Dong)
Paul Bakker92478c32014-04-25 15:18:34 +02001665
Paul Bakker088c5c52014-04-25 11:11:10 +02001666= PolarSSL 1.3.7 released on 2014-05-02
1667Features
1668 * debug_set_log_mode() added to determine raw or full logging
Paul Bakker92478c32014-04-25 15:18:34 +02001669 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker63844402014-04-30 15:34:12 +02001670 * version_check_feature() added to check for compile-time options at
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02001671 run-time
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02001672
Paul Bakker088c5c52014-04-25 11:11:10 +02001673Changes
Paul Bakkere92f73d2014-04-18 14:08:26 +02001674 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
1675 checked and filled in the relevant module headers
1676 * Debug module only outputs full lines instead of parts
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02001677 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
1678 * AES-NI now compiles with "old" assemblers too
Paul Bakkerfdba4682014-04-25 11:48:35 +02001679 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker61885c72014-04-25 12:59:03 +02001680
1681Bugfix
Paul Bakkera7036632014-04-30 10:15:38 +02001682 * Only iterate over actual certificates in ssl_write_certificate_request()
1683 (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02001684 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
Paul Bakkerf96f7b62014-04-30 16:02:38 +02001685 Karger)
Paul Bakker33dc46b2014-04-30 16:11:39 +02001686 * cert_write app should use subject of issuer certificate as issuer of cert
1687 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02001688 ciphersuites, for full SSL frames of data.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02001689 * Improve interoperability by not writing extension length in ClientHello /
Markus Pfeiffera26a0052014-04-22 20:16:15 +00001690 ServerHello when no extensions are present (found by Matthew Page)
Barry K. Nathancf975f52014-04-23 17:40:25 -07001691 * rsa_check_pubkey() now allows an E up to N
1692 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakkere92f73d2014-04-18 14:08:26 +02001693 * mpi_fill_random() was creating numbers larger than requested on
Paul Bakker784b04f2014-04-11 15:33:59 +02001694 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001695 * Fix dependencies issues in X.509 test suite.
Paul Bakker27e36d32014-04-08 12:33:37 +02001696 * Some parts of ssl_tls.c were compiled even when the module was disabled.
1697 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Paul Bakker1cfc4582014-04-09 15:25:13 +02001698 * Fix detection of Clang on some Apple platforms with CMake
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001699 (found by Barry K. Nathan)
Paul Bakker59366212014-04-09 15:55:20 +02001700
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001701= PolarSSL 1.3.6 released on 2014-04-11
1702
Paul Bakker27e36d32014-04-08 12:33:37 +02001703Features
Paul Bakker4984d3c2014-04-04 15:39:37 +02001704 * Support for the ALPN SSL extension
1705 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02001706 * Enable verification of the keyUsage extension for CA and leaf
1707 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02001708 * Enable verification of the extendedKeyUsage extension
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02001709 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker4984d3c2014-04-04 15:39:37 +02001710
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001711Changes
1712 * x509_crt_info() now prints information about parsed extensions as well
1713 * pk_verify() now returns a specific error code when the signature is valid
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02001714 but shorter than the supplied length.
1715 * Use UTC time to check certificate validity.
1716 * Reject certificates with times not in UTC, per RFC 5280.
1717
Paul Bakker4224bc02014-04-08 14:36:50 +02001718Security
1719 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001720 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001721 * The notAfter date of some certificates was no longer checked since 1.3.5.
1722 This affects certificates in the user-supplied chain except the top
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01001723 certificate. If the user-supplied chain contains only one certificates,
Paul Bakker75a28602014-03-31 12:08:17 +02001724 it is not affected (ie, its notAfter date is properly checked).
1725 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02001726 TrustInSoft)
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02001727
1728Bugfix
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02001729 * The length of various ClientKeyExchange messages was not properly checked.
1730 * Some example server programs were not sending the close_notify alert.
Shuo Chen95a0d112014-04-04 21:04:40 -07001731 * Potential memory leak in mpi_exp_mod() when error occurs during
1732 calculation of RR.
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01001733 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
1734 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01001735 Gergely Budai).
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02001736 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
1737 (found by Gergely Budai)
Paul Bakker16300582014-04-11 13:28:43 +02001738 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
1739 Shuo Chen).
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02001740 * oid_get_numeric_string() used to truncate the output without returning an
1741 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001742 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Paul Bakker96d52652014-03-26 16:55:50 +01001743 * Calling pk_debug() on an RSA-alt key would segfault.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001744 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
1745 * Potential buffer overwrite in pem_write_buffer() because of low length
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001746 indication (found by Thijs Alkemade)
Paul Bakker6a28e722014-02-06 13:41:55 +01001747 * EC curves constants, which should be only in ROM since 1.3.3, were also
Paul Bakkerf2561b32014-02-06 15:11:55 +01001748 stored in RAM due to missing 'const's (found by Gergely Budai).
Paul Bakker2ceda572014-02-06 15:55:25 +01001749
1750= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001751Features
1752 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01001753 * Option to set the Curve preference order (disabled by default)
Paul Bakker66ff70d2014-03-26 11:54:05 +01001754 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakker6a28e722014-02-06 13:41:55 +01001755 * Ability to provide alternate timing implementation
1756 * Ability to force the entropy module to use SHA-256 as its basis
1757 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker47703a02014-02-06 15:01:20 +01001758 * Testing script ssl-opt.sh added for testing 'live' ssl option
1759 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01001760 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01001761 * Entropy module now supports seed writing and reading
1762
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001763Changes
1764 * Deprecated the Memory layer
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001765 * entropy_add_source(), entropy_update_manual() and entropy_gather()
Paul Bakker674e0b02014-03-26 13:26:52 +01001766 now thread-safe if POLARSSL_THREADING_C defined
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001767 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001768 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1769 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01001770 * Revamped the compat.sh interoperatibility script to include support for
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001771 testing against GnuTLS
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01001772 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01001773 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001774
Paul Bakker91c61bc2014-03-26 14:06:55 +01001775Security
1776 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001777 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001778 attack was already impossible when authentication is required).
1779 * Check notBefore timestamp of certificates and CRLs from the future.
1780 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001781 * Fixed possible buffer overflow with overlong PSK
Paul Bakkercd6d69a2014-02-06 15:43:21 +01001782 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01001783 TrustInSoft)
Paul Bakker3d52ab72014-03-07 10:33:55 +01001784
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01001785Bugfix
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01001786 * ecp_gen_keypair() does more tries to prevent failure because of
Alex Wilson73491422014-03-06 00:04:09 +10001787 statistics
1788 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001789 * Fixed testing with out-of-source builds using cmake
1790 * Fixed version-major intolerance in server
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01001791 * Fixed CMake symlinking on out-of-source builds
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001792 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001793 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001794 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01001795 Alex Wilson.)
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001796 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
Paul Bakker3d6504a2014-03-17 13:41:51 +01001797 * m_sleep() was sleeping twice too long on most Unix platforms.
1798 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakker77f4f392014-03-26 15:28:55 +01001799 send() would return an EAGAIN error when sending the ticket.
1800 * ssl_cache was leaking memory when reusing a timed out entry containing a
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01001801 client certificate.
Paul Bakker5fff23b2014-03-26 15:34:54 +01001802 * ssl_srv was leaking memory when client presented a timed out ticket
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001803 containing a client certificate
Paul Bakker2aca2412014-01-27 11:49:46 +01001804 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
Paul Bakker3eb96732014-01-22 13:08:19 +01001805 out_ctr failed
Paul Bakker0ac99ca2014-01-22 13:08:44 +01001806 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
Paul Bakker5862eee2014-01-22 14:18:03 +01001807 of one of them failed
Paul Bakker556efba2014-01-24 15:38:12 +01001808 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01001809 * x509_get_current_time() uses localtime_r() to prevent thread issues
Paul Bakker3eb96732014-01-22 13:08:19 +01001810
1811= PolarSSL 1.3.4 released on 2014-01-27
1812Features
1813 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakkerd75ba402014-01-24 16:11:17 +01001814 * Support for RIPEMD-160
Paul Bakkerb84582b2014-01-27 12:23:43 +01001815 * Support for AES CFB8 mode
1816 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01001817
1818Bugfix
1819 * Potential memory leak in bignum_selftest()
Paul Bakkerb84582b2014-01-27 12:23:43 +01001820 * Replaced expired test certificate
1821 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakker3eb96732014-01-22 13:08:19 +01001822 * net module handles timeouts on blocking sockets better (found by Tilman
Paul Bakker5bc07a32013-12-31 10:57:44 +01001823 Sauerbeck)
Paul Bakker014f1432013-12-02 14:54:01 +01001824 * Assembly format fixes in bn_mul.h
1825
Paul Bakker9dc53a92013-12-02 14:55:28 +01001826Security
1827 * Missing MPI_CHK calls added around unguarded mpi calls (found by
Paul Bakker48d78a52013-12-05 16:11:38 +01001828 TrustInSoft)
Paul Bakkerfdf94692013-12-17 13:09:31 +01001829
Paul Bakker5a607d22013-12-17 14:33:42 +01001830= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker23116fd2013-12-30 14:09:47 +01001831Features
Paul Bakkerf9c49532013-12-19 15:40:58 +01001832 * EC key generation support in gen_key app
Paul Bakker014f1432013-12-02 14:54:01 +01001833 * Support for adhering to client ciphersuite order preference
Paul Bakker7aa03752013-11-26 17:37:31 +01001834 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
1835 * Support for Curve25519
1836 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
1837 * Support for IPv6 in the NET module
Paul Bakkerc3d0d072013-12-02 14:50:49 +01001838 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakker4040d7e2013-12-02 14:52:57 +01001839 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakkerb14817d2013-12-02 22:03:23 +01001840
Paul Bakker5ab68ba2013-12-17 13:10:48 +01001841Changes
Paul Bakkerc7387912013-12-31 10:32:50 +01001842 * gen_prime() speedup
Paul Bakkera8fd3e32013-12-31 11:54:08 +01001843 * Speedup of ECP multiplication operation
Paul Bakker7aa03752013-11-26 17:37:31 +01001844 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001845 * Dropped use of readdir_r() instead of readdir() with threading support
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01001846 * More constant-time checks in the RSA module
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001847 * Split off curves from ecp.c into ecp_curves.c
Paul Bakkera9a028e2013-11-21 17:31:06 +01001848 * Curves are now stored fully in ROM
Paul Bakker7aa03752013-11-26 17:37:31 +01001849 * Memory usage optimizations in ECP module
1850 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker6f0636a2013-12-16 15:24:05 +01001851
Paul Bakkerf70fe812013-12-16 16:43:10 +01001852Bugfix
Paul Bakker1a56fc92013-12-19 13:51:24 +01001853 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakker6ea1a952013-12-31 11:16:03 +01001854 * Fixed X.509 hostname comparison (with non-regular characters)
1855 * SSL now gracefully handles missing RNG
Paul Bakker6992eb72013-12-31 11:35:16 +01001856 * Missing defines / cases for RSA_PSK key exchange
1857 * crypt_and_hash app checks MAC before final decryption
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001858 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakker956c9e02013-12-19 14:42:28 +01001859 * Memory leak in benchmark application
1860 * Fixed x509_crt_parse_path() bug on Windows platforms
1861 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
1862 TrustInSoft)
Paul Bakkerf4dc1862013-11-04 17:29:42 +01001863 * Fixed potential overflow in certificate size verification in
Paul Bakker08bb1872013-10-28 14:03:26 +01001864 ssl_write_certificate() (found by TrustInSoft)
1865
Paul Bakker3f917e22013-10-28 14:16:59 +01001866Security
Paul Bakker16421222013-10-28 14:37:09 +01001867 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Paul Bakker08bb1872013-10-28 14:03:26 +01001868 TrustInSoft)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001869
1870= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakkere1121b62013-10-31 14:37:37 +01001871Features
Paul Bakker7b0be682013-10-29 14:24:37 +01001872 * PK tests added to test framework
Paul Bakkere1121b62013-10-31 14:37:37 +01001873 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001874 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker677377f2013-10-28 12:54:26 +01001875
Paul Bakker16421222013-10-28 14:37:09 +01001876Changes
Paul Bakker677377f2013-10-28 12:54:26 +01001877 * Padding checks in cipher layer are now constant-time
Paul Bakker45a2c8d2013-10-28 12:57:08 +01001878 * Value comparisons in SSL layer are now constant-time
Paul Bakker68037da2013-10-28 14:02:40 +01001879 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakker50dc8502013-10-28 21:19:10 +01001880 * SSL Renegotiation was refactored
Paul Bakker93c6aa42013-10-28 22:28:09 +01001881
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01001882Bugfix
Paul Bakkerfa6a6202013-10-28 18:48:30 +01001883 * More stringent checks in cipher layer
Paul Bakkere1121b62013-10-31 14:37:37 +01001884 * Server does not send out extensions not advertised by client
Paul Bakker677377f2013-10-28 12:54:26 +01001885 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001886 * Misc fixes and additions to dependency checks
Paul Bakkerb799dec2013-10-11 10:03:27 +02001887 * Const correctness
1888 * cert_write with selfsign should use issuer_name as subject_name
Paul Bakker376e8152013-10-15 12:44:23 +02001889 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerf34673e2013-10-15 12:46:17 +02001890 * Defines to handle UEFI environment under MSVC
Paul Bakkerb799dec2013-10-11 10:03:27 +02001891 * Server-side initiated renegotiations send HelloRequest
Paul Bakkerddba8822013-10-11 09:21:56 +02001892
1893= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakker16770332013-10-11 09:59:44 +02001894Features
Paul Bakkerbe089b02013-10-14 15:51:50 +02001895 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakkera7ea6a52013-10-15 11:55:10 +02001896 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerddba8822013-10-11 09:21:56 +02001897 * Support for RSA-PSK key-exchange and ciphersuites
1898
1899Changes
1900 * RSA blinding locks for a smaller amount of time
1901 * TLS compression only allocates working buffer once
Paul Bakkerfcc17212013-10-11 09:36:52 +02001902 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02001903 * config.h is more script-friendly
Paul Bakker4aa40d42013-10-11 10:49:24 +02001904
Paul Bakkerb7c13122013-10-11 10:51:32 +02001905Bugfix
Paul Bakker5191e922013-10-11 10:54:28 +02001906 * Missing MSVC defines added
Paul Bakkerddba8822013-10-11 09:21:56 +02001907 * Compile errors with POLARSSL_RSA_NO_CRT
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001908 * Header files with 'polarssl/'
Paul Bakker41c83d32013-03-20 14:39:14 +01001909 * Const correctness
1910 * Possible naming collision in dhm_context
1911 * Better support for MSVC
1912 * threading_set_alt() name
1913 * Added missing x509write_crt_set_version()
Paul Bakkerc8676782013-08-28 12:15:11 +02001914
1915= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker8f4ddae2013-04-15 15:09:54 +02001916Features
Paul Bakkerb91c2b52013-04-19 16:05:16 +02001917 * Elliptic Curve Cryptography module added
Paul Bakker6e339b52013-07-03 13:37:05 +02001918 * Elliptic Curve Diffie Hellman module added
1919 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
Paul Bakker2466d932013-09-28 14:40:38 +02001920 (ECDHE-based ciphersuites)
Paul Bakker5ad403f2013-09-18 21:21:30 +02001921 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
Paul Bakkerf85778e2013-07-19 14:55:25 +02001922 (ECDSA-based ciphersuites)
1923 * Ability to specify allowed ciphersuites based on the protocol version.
1924 * PSK and DHE-PSK based ciphersuites added
1925 * Memory allocation abstraction layer added
Paul Bakkerda4d1c32013-08-14 12:24:34 +02001926 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
1927 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker936539a2013-08-14 13:49:20 +02001928 * Public Key abstraction layer added
Paul Bakkerca174fe2013-08-28 16:31:30 +02001929 * Parsing Elliptic Curve keys
1930 * Parsing Elliptic Curve certificates
Paul Bakker7fb4a792013-09-12 12:00:52 +02001931 * Support for max_fragment_length extension (RFC 6066)
1932 * Support for truncated_hmac extension (RFC 6066)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02001933 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
Paul Bakker8b817dc2013-09-25 18:03:58 +02001934 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
1935 * Support for session tickets (RFC 5077)
Paul Bakker41c83d32013-03-20 14:39:14 +01001936 * Certificate Request (CSR) generation with extensions (key_usage,
Paul Bakker9b5798d2013-03-13 13:53:00 +01001937 ns_cert_type)
Paul Bakkerd2f068e2013-08-27 21:19:20 +02001938 * X509 Certificate writing with extensions (basic_constraints,
1939 issuer_key_identifier, etc)
Paul Bakker68884e32013-01-07 18:20:04 +01001940 * Optional blinding for RSA, DHM and EC
1941 * Support for multiple active certificate / key pairs in SSL servers for
Simon Butcherbb5e1c32018-06-08 11:14:43 +01001942 the same host (Not to be confused with SNI!)
Paul Bakker9b5798d2013-03-13 13:53:00 +01001943
Paul Bakker90f042d2013-03-11 11:38:44 +01001944Changes
Paul Bakkerc0463502013-02-14 11:19:38 +01001945 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
1946 individually
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01001947 * Introduced separate SSL Ciphersuites module that is based on
1948 Cipher and MD information
Paul Bakkerc70b9822013-04-07 22:00:46 +02001949 * Internals for SSL module adapted to have separate IV pointer that is
1950 dynamically set (Better support for hardware acceleration)
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02001951 * Moved all OID functionality to a separate module. RSA function
Paul Bakker2fbefde2013-06-29 16:01:15 +02001952 prototypes for the RSA sign and verify functions changed as a result
1953 * Split up the GCM module into a starts/update/finish cycle
Paul Bakkere2ab84f2013-06-29 18:24:32 +02001954 * Client and server now filter sent and accepted ciphersuites on minimum
1955 and maximum protocol version
Paul Bakker0be444a2013-08-27 21:55:01 +02001956 * Ability to disable server_name extension (RFC 6066)
Paul Bakkere47b34b2013-02-27 14:48:00 +01001957 * Renamed error_strerror() to the less conflicting polarssl_strerror()
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001958 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9e36f042013-06-30 14:34:05 +02001959 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakker548957d2013-08-30 10:30:02 +02001960 * All RSA operations require a random generator for blinding purposes
Paul Bakker45f21c72013-09-18 15:33:49 +02001961 * X509 core refactored
1962 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker5ad403f2013-09-18 21:21:30 +02001963 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02001964 * Support faulty X509 v1 certificates with extensions
1965 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakkere47b34b2013-02-27 14:48:00 +01001966
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001967Bugfix
Paul Bakker73d44312013-05-22 13:56:26 +02001968 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02001969 * zlib compression/decompression skipped on empty blocks
Paul Bakker1e6a1752013-07-26 14:10:22 +02001970 * Support for AIX header locations in net.c module
Paul Bakker003dbad2013-09-09 17:26:14 +02001971 * Fixed file descriptor leaks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001972
Paul Bakkeraab30c12013-08-30 11:00:25 +02001973Security
1974 * RSA blinding on CRT operations to counter timing attacks
1975 (found by Cyril Arnaud and Pierre-Alain Fouque)
1976
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02001977
1978= Version 1.2.14 released 2015-05-??
1979
1980Security
1981 * Fix potential invalid memory read in the server, that allows a client to
1982 crash it remotely (found by Caj Larsson).
1983 * Fix potential invalid memory read in certificate parsing, that allows a
1984 client to crash the server remotely if client authentication is enabled
1985 (found using Codenomicon Defensics).
1986 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
1987 https://dl.acm.org/citation.cfm?id=2714625
1988
1989Bugfix
1990 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
1991 * Fix hardclock() (only used in the benchmarking program) with some
1992 versions of mingw64 (found by kxjhlele).
1993 * Fix warnings from mingw64 in timing.c (found by kxjklele).
1994 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1995 platforms (found with Coverity Scan).
1996
1997= Version 1.2.13 released 2015-02-16
1998Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
1999 this will be made in the 1.2 branch at this point.
2000
2001Security
2002 * Fix remotely-triggerable uninitialised pointer dereference caused by
2003 crafted X.509 certificate (TLS server is not affected if it doesn't ask
2004 for a client certificate) (found using Codenomicon Defensics).
2005 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
2006 (TLS server is not affected if it doesn't ask for a client certificate)
2007 (found using Codenomicon Defensics).
2008 * Fix potential stack overflow while parsing crafted X.509 certificates
2009 (TLS server is not affected if it doesn't ask for a client certificate)
2010 found using Codenomicon Defensics).
2011 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
2012 (TLS server is not affected if it doesn't ask for a client certificate).
2013
2014Bugfix
2015 * Fix potential undefined behaviour in Camellia.
2016 * Fix memory leaks in PKCS#5 and PKCS#12.
2017 * Stack buffer overflow if ctr_drbg_update() is called with too large
2018 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
2019 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
2020 in 1.2.12).
2021 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
2022 Peter Vaskovic).
2023 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
2024 * ssl_get_verify_result() now works even if the handshake was aborted due
2025 to a failed verification (found by Fredrik Axelsson).
2026 * Skip writing and parsing signature_algorithm extension if none of the
2027 key exchanges enabled needs certificates. This fixes a possible interop
2028 issue with some servers when a zero-length extension was sent. (Reported
2029 by Peter Dettman.)
2030 * On a 0-length input, base64_encode() did not correctly set output length
2031 (found by Hendrik van den Boogaard).
2032
2033Changes
2034 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
2035 * Forbid repeated extensions in X.509 certificates.
2036 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
2037 length of an X.509 verification chain (default = 8).
Paul Bakkera6c5ea22014-10-24 16:26:29 +02002038= Version 1.2.12 released 2014-10-24
2039
2040Security
2041 * Remotely-triggerable memory leak when parsing some X.509 certificates
2042 (server is not affected if it doesn't ask for a client certificate).
2043 (Found using Codenomicon Defensics.)
2044
2045Bugfix
2046 * Fix potential bad read in parsing ServerHello (found by Adrien
2047 Vialletelle).
2048 * ssl_close_notify() could send more than one message in some circumstances
2049 with non-blocking I/O.
2050 * x509_crt_parse() did not increase total_failed on PEM error
2051 * Fix compiler warnings on iOS (found by Sander Niemeijer).
2052 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
2053 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
2054 * ssl_read() could return non-application data records on server while
2055 renegotation was pending, and on client when a HelloRequest was received.
2056 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
2057
2058Changes
2059 * X.509 certificates with more than one AttributeTypeAndValue per
2060 RelativeDistinguishedName are not accepted any more.
2061 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2062 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
2063 * Accept spaces at end of line or end of buffer in base64_decode().
2064
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02002065= Version 1.2.11 released 2014-07-11
2066Features
2067 * Entropy module now supports seed writing and reading
2068
2069Changes
2070 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
2071 * Improvements to the CMake build system, contributed by Julian Ospald.
2072 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2073 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
2074 * Improvements to tests/Makefile, contributed by Oden Eriksson.
2075 * Use UTC time to check certificate validity.
2076 * Reject certificates with times not in UTC, per RFC 5280.
2077 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2078 against unwanted compiler optimizations
2079
2080Security
2081 * Forbid change of server certificate during renegotiation to prevent
2082 "triple handshake" attack when authentication mode is optional (the
2083 attack was already impossible when authentication is required).
2084 * Check notBefore timestamp of certificates and CRLs from the future.
2085 * Forbid sequence number wrapping
2086 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2087 TrustInSoft)
2088 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2089 It was possible to crash the server (and client) using crafted messages
2090 when a GCM suite was chosen.
2091
2092Bugfix
2093 * Fixed X.509 hostname comparison (with non-regular characters)
2094 * SSL now gracefully handles missing RNG
2095 * crypt_and_hash app checks MAC before final decryption
2096 * Fixed x509_crt_parse_path() bug on Windows platforms
2097 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2098 TrustInSoft)
2099 * Fixed potential overflow in certificate size verification in
2100 ssl_write_certificate() (found by TrustInSoft)
2101 * Fix ASM format in bn_mul.h
2102 * Potential memory leak in bignum_selftest()
2103 * Replaced expired test certificate
2104 * ssl_mail_client now terminates lines with CRLF, instead of LF
2105 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
2106 * Fixed testing with out-of-source builds using cmake
2107 * Fixed version-major intolerance in server
2108 * Fixed CMake symlinking on out-of-source builds
2109 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2110 Alex Wilson.)
2111 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2112 out_ctr failed
2113 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2114 of one of them failed
2115 * x509_get_current_time() uses localtime_r() to prevent thread issues
2116 * Some example server programs were not sending the close_notify alert.
2117 * Potential memory leak in mpi_exp_mod() when error occurs during
2118 calculation of RR.
2119 * Improve interoperability by not writing extension length in ClientHello
2120 when no extensions are present (found by Matthew Page)
2121 * rsa_check_pubkey() now allows an E up to N
2122 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
2123 * mpi_fill_random() was creating numbers larger than requested on
2124 big-endian platform when size was not an integer number of limbs
2125 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
2126 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2127 size (found by TrustInSoft)
2128 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
2129 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2130 interpret semicolons as comment delimiters (found by Barry K. Nathan).
2131 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
2132 * Fix base64_decode() to return and check length correctly (in case of
2133 tight buffers)
2134
Paul Bakker3a2c0562013-10-07 16:22:05 +02002135= Version 1.2.10 released 2013-10-07
2136Changes
2137 * Changed RSA blinding to a slower but thread-safe version
2138
2139Bugfix
2140 * Fixed memory leak in RSA as a result of introduction of blinding
2141 * Fixed ssl_pkcs11_decrypt() prototype
2142 * Fixed MSVC project files
2143
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002144= Version 1.2.9 released 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002145Changes
2146 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
2147
2148Bugfix
2149 * Fixed potential memory leak when failing to resume a session
2150 * Fixed potential file descriptor leaks (found by Remi Gacogne)
2151 * Minor fixes
2152
2153Security
2154 * Fixed potential heap buffer overflow on large hostname setting
2155 * Fixed potential negative value misinterpretation in load_file()
2156 * RSA blinding on CRT operations to counter timing attacks
2157 (found by Cyril Arnaud and Pierre-Alain Fouque)
2158
Paul Bakkerde656232013-06-24 19:07:34 +02002159= Version 1.2.8 released 2013-06-19
2160Features
2161 * Parsing of PKCS#8 encrypted private key files
2162 * PKCS#12 PBE and derivation functions
2163 * Centralized module option values in config.h to allow user-defined
2164 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
2165
2166Changes
2167 * HAVEGE random generator disabled by default
2168 * Internally split up x509parse_key() into a (PEM) handler function
2169 and specific DER parser functions for the PKCS#1 and unencrypted
2170 PKCS#8 private key formats
2171 * Added mechanism to provide alternative implementations for all
2172 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002173 config.h)
Paul Bakkerde656232013-06-24 19:07:34 +02002174 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
2175 old PBKDF2 module
2176
2177Bugfix
2178 * Secure renegotiation extension should only be sent in case client
2179 supports secure renegotiation
2180 * Fixed offset for cert_type list in ssl_parse_certificate_request()
2181 * Fixed const correctness issues that have no impact on the ABI
2182 * x509parse_crt() now better handles PEM error situations
2183 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2184 instead of the x509parse_crt() wrapper that can also parse PEM
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002185 certificates
Paul Bakkerde656232013-06-24 19:07:34 +02002186 * x509parse_crtpath() is now reentrant and uses more portable stat()
2187 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
2188 * Fixed values for 2-key Triple DES in cipher layer
2189 * ssl_write_certificate_request() can handle empty ca_chain
2190
2191Security
2192 * A possible DoS during the SSL Handshake, due to faulty parsing of
2193 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2194
2195= Version 1.2.7 released 2013-04-13
2196Features
2197 * Ability to specify allowed ciphersuites based on the protocol version.
2198
2199Changes
2200 * Default Blowfish keysize is now 128-bits
2201 * Test suites made smaller to accommodate Raspberry Pi
2202
2203Bugfix
2204 * Fix for MPI assembly for ARM
2205 * GCM adapted to support sizes > 2^29
2206
Paul Bakkerc0463502013-02-14 11:19:38 +01002207= Version 1.2.6 released 2013-03-11
2208Bugfix
2209 * Fixed memory leak in ssl_free() and ssl_reset() for active session
2210 * Corrected GCM counter incrementation to use only 32-bits instead of
Paul Bakkere47b34b2013-02-27 14:48:00 +01002211 128-bits (found by Yawning Angel)
Paul Bakkere3e4a592013-02-28 10:20:53 +01002212 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakker37286a52013-03-06 16:55:11 +01002213 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01002214 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakkerd66f0702013-01-31 16:57:45 +01002215
Paul Bakkerb3869132013-02-28 17:21:01 +01002216Changes
2217 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
2218 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
2219 PKCS#1 v2.1 functions
Paul Bakkera43231c2013-02-28 17:33:49 +01002220 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
2221 or rsa_rsaes_oaep_decrypt()
Paul Bakker78a8c712013-03-06 17:01:52 +01002222 * Re-added handling for SSLv2 Client Hello when the define
2223 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkere81beda2013-03-06 17:40:46 +01002224 * The SSL session cache module (ssl_cache) now also retains peer_cert
2225 information (not the entire chain)
Paul Bakkerb3869132013-02-28 17:21:01 +01002226
Paul Bakkere47b34b2013-02-27 14:48:00 +01002227Security
2228 * Removed further timing differences during SSL message decryption in
2229 ssl_decrypt_buf()
Paul Bakker8804f692013-02-28 18:06:26 +01002230 * Removed timing differences due to bad padding from
2231 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2232 operations
Paul Bakkere47b34b2013-02-27 14:48:00 +01002233
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002234= Version 1.2.5 released 2013-02-02
2235Changes
2236 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakkerd66f0702013-01-31 16:57:45 +01002237 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01002238 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker40865c82013-01-31 17:13:13 +01002239 * Sending of security-relevant alert messages that do not break
2240 interoperability can be switched on/off with the flag
Paul Bakkera35aa542013-03-06 17:06:21 +01002241 POLARSSL_SSL_ALL_ALERT_MESSAGES
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002242
Paul Bakker45829992013-01-03 14:52:21 +01002243Security
2244 * Removed timing differences during SSL message decryption in
2245 ssl_decrypt_buf() due to badly formatted padding
2246
Paul Bakker14c56a32013-01-25 17:11:37 +01002247= Version 1.2.4 released 2013-01-25
Paul Bakker1961b702013-01-25 14:49:24 +01002248Changes
Paul Bakker68884e32013-01-07 18:20:04 +01002249 * More advanced SSL ciphersuite representation and moved to more dynamic
2250 SSL core
Paul Bakker1961b702013-01-25 14:49:24 +01002251 * Added ssl_handshake_step() to allow single stepping the handshake process
2252
Paul Bakker40628ba2013-01-03 10:50:31 +01002253Bugfix
2254 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakker21dca692013-01-03 11:41:08 +01002255 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker9c94cdd2013-01-22 13:45:33 +01002256 * Correctly handle CertificateRequest message in client for <= TLS 1.1
2257 without DN list
Paul Bakker40628ba2013-01-03 10:50:31 +01002258
Paul Bakkerfb1ba782012-11-26 16:28:25 +01002259= Version 1.2.3 released 2012-11-26
2260Bugfix
2261 * Server not always sending correct CertificateRequest message
2262
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002263= Version 1.2.2 released 2012-11-24
Paul Bakkere667c982012-11-20 13:50:22 +01002264Changes
2265 * Added p_hw_data to ssl_context for context specific hardware acceleration
2266 data
Hanno Becker01a0e072017-07-26 11:49:40 +01002267 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkere667c982012-11-20 13:50:22 +01002268
Paul Bakker7c90da92012-11-23 14:02:40 +01002269Bugfixes
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002270 * Fixed client authentication compatibility
2271 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker7c90da92012-11-23 14:02:40 +01002272
Paul Bakker14926332012-11-20 10:58:09 +01002273= Version 1.2.1 released 2012-11-20
Paul Bakker34d8dbc2012-11-14 12:11:38 +00002274Changes
2275 * Depth that the certificate verify callback receives is now numbered
2276 bottom-up (Peer cert depth is 0)
2277
Paul Bakker7a2538e2012-11-02 10:59:36 +00002278Bugfixes
2279 * Fixes for MSVC6
Paul Bakkerd9374b02012-11-02 11:02:58 +00002280 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakkerf02c5642012-11-13 10:25:21 +00002281 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2282 Pégourié-Gonnard)
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01002283 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2284 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00002285 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakker7a2538e2012-11-02 10:59:36 +00002286
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002287= Version 1.2.0 released 2012-10-31
Paul Bakkerfab5c822012-02-06 16:45:10 +00002288Features
2289 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
2290 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
2291 default!
Paul Bakkera8cd2392012-02-11 16:09:32 +00002292 * Added support for wildcard certificates
2293 * Added support for multi-domain certificates through the X509 Subject
2294 Alternative Name extension
Paul Bakkerbdb912d2012-02-13 23:11:30 +00002295 * Added preliminary ASN.1 buffer writing support
2296 * Added preliminary X509 Certificate Request writing support
2297 * Added key_app_writer example application
2298 * Added cert_req example application
Paul Bakker89e80c92012-03-20 13:50:09 +00002299 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker48916f92012-09-16 19:57:18 +00002300 * Added TLS 1.2 support (RFC 5246)
Paul Bakkerca4ab492012-04-18 14:23:57 +00002301 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker01cc3942012-05-08 08:36:15 +00002302 * Added commandline error code convertor (util/strerror)
Paul Bakker05ef8352012-05-08 09:17:57 +00002303 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002304 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002305 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker8d914582012-06-04 12:46:42 +00002306 * Added X509 CA Path support
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00002307 * Added Thumb assembly optimizations
Paul Bakker2770fbd2012-07-03 13:30:23 +00002308 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002309 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakkerf518b162012-08-23 13:03:18 +00002310 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker48916f92012-09-16 19:57:18 +00002311 * Added Secure Renegotiation (RFC 5746)
Paul Bakker29b64762012-09-25 09:36:44 +00002312 * Added predefined DHM groups from RFC 5114
Paul Bakker0a597072012-09-25 21:55:46 +00002313 * Added simple SSL session cache implementation
Paul Bakker5701cdc2012-09-27 21:49:42 +00002314 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1d29fb52012-09-28 13:28:45 +00002315 * Added option to add minimum accepted SSL/TLS protocol version
Paul Bakkerfab5c822012-02-06 16:45:10 +00002316
Paul Bakker1504af52012-02-11 16:17:43 +00002317Changes
2318 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker048d04e2012-02-12 17:31:04 +00002319 * AES code only check for Padlock once
Paul Bakker6b906e52012-05-08 12:01:43 +00002320 * Fixed const-correctness mpi_get_bit()
2321 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker186751d2012-05-08 13:16:14 +00002322 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker4d2c1242012-05-10 14:12:46 +00002323 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakker5b377842012-05-16 07:57:36 +00002324 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002325 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
2326 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkerec636f32012-09-09 19:17:02 +00002327 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker0a597072012-09-25 21:55:46 +00002328 * Revamped session resumption handling
Paul Bakkereb2c6582012-09-27 19:15:01 +00002329 * Generalized external private key implementation handling (like PKCS#11)
2330 in SSL/TLS
Paul Bakker915275b2012-09-28 07:10:55 +00002331 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker5c2364c2012-10-01 14:41:15 +00002332 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker645ce3a2012-10-31 12:32:41 +00002333 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker1504af52012-02-11 16:17:43 +00002334
Paul Bakker37824582012-03-22 14:10:22 +00002335Bugfix
Paul Bakker7beceb22012-03-22 14:19:49 +00002336 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2337 Hui Dong)
Paul Bakker430ffbe2012-05-01 08:14:20 +00002338 * Fixed potential heap corruption in x509_name allocation
Paul Bakker5b377842012-05-16 07:57:36 +00002339 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkerf6198c12012-05-16 08:02:29 +00002340 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2341 #52)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002342 * Handle encryption with private key and decryption with public key as per
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002343 RFC 2313
Paul Bakkercefb3962012-06-27 11:51:09 +00002344 * Handle empty certificate subject names
Paul Bakker535e97d2012-08-23 10:49:55 +00002345 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00002346 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker995a2152012-09-25 08:19:56 +00002347 with carry rollover (found by Ruslan Yushchenko)
Paul Bakkerb00ca422012-09-25 12:10:00 +00002348 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker4f024b72012-10-30 07:29:57 +00002349 * Fixed MPI assembly for SPARC64 platform
Paul Bakker37824582012-03-22 14:10:22 +00002350
Paul Bakker452d5322012-04-05 12:07:34 +00002351Security
Paul Bakker3c16db92012-07-05 13:58:08 +00002352 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2353 Vanderbeken)
Paul Bakker452d5322012-04-05 12:07:34 +00002354
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002355= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002356Bugfix
2357 * Fixed potential memory leak when failing to resume a session
2358 * Fixed potential file descriptor leaks
2359
2360Security
2361 * Potential buffer-overflow for ssl_read_record() (independently found by
2362 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
2363 * Potential negative value misinterpretation in load_file()
2364 * Potential heap buffer overflow on large hostname setting
2365
Paul Bakker248fff52013-06-24 19:08:50 +02002366= Version 1.1.7 released on 2013-06-19
2367Changes
2368 * HAVEGE random generator disabled by default
2369
2370Bugfix
2371 * x509parse_crt() now better handles PEM error situations
2372 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2373 instead of the x509parse_crt() wrapper that can also parse PEM
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002374 certificates
Paul Bakker248fff52013-06-24 19:08:50 +02002375 * Fixed values for 2-key Triple DES in cipher layer
2376 * ssl_write_certificate_request() can handle empty ca_chain
2377
2378Security
2379 * A possible DoS during the SSL Handshake, due to faulty parsing of
2380 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2381
2382= Version 1.1.6 released on 2013-03-11
2383Bugfix
2384 * Fixed net_bind() for specified IP addresses on little endian systems
2385
2386Changes
2387 * Allow enabling of dummy error_strerror() to support some use-cases
2388 * Debug messages about padding errors during SSL message decryption are
2389 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
2390
2391Security
2392 * Removed timing differences during SSL message decryption in
2393 ssl_decrypt_buf()
2394 * Removed timing differences due to bad padding from
2395 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2396 operations
2397
Paul Bakker9d2bb652013-01-25 16:07:49 +01002398= Version 1.1.5 released on 2013-01-16
2399Bugfix
2400 * Fixed MPI assembly for SPARC64 platform
2401 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
2402 * mpi_add_abs() now correctly handles adding short numbers to long numbers
2403 with carry rollover
2404 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
2405 * Prevent reading over buffer boundaries on X509 certificate parsing
2406 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2407 #52)
2408 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2409 Pégourié-Gonnard)
2410 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2411 Pégourié-Gonnard)
2412 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2413 * Memory leak when using RSA_PKCS_V21 operations fixed
2414 * Handle encryption with private key and decryption with public key as per
2415 RFC 2313
2416 * Fixes for MSVC6
2417
2418Security
2419 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2420 Vanderbeken)
2421
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002422= Version 1.1.4 released on 2012-05-31
2423Bugfix
2424 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2425 * Fixed potential heap corruption in x509_name allocation
2426 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2427
Paul Bakkerfad38932012-05-08 09:04:04 +00002428= Version 1.1.3 released on 2012-04-29
2429Bugfix
2430 * Fixed random MPI generation to not generate more size than requested.
2431
2432= Version 1.1.2 released on 2012-04-26
2433Bugfix
2434 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2435 Hui Dong)
2436
2437Security
2438 * Fixed potential memory corruption on miscrafted client messages (found by
2439 Frama-C team at CEA LIST)
2440 * Fixed generation of DHM parameters to correct length (found by Ruslan
2441 Yushchenko)
2442
Paul Bakker99955bf2012-01-23 09:31:41 +00002443= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002444Bugfix
2445 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2446 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002447 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002448 * Fixed multiple compiler warnings for VS6 and armcc
2449 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002450
Paul Bakker08a50882011-12-22 09:43:57 +00002451= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002452Features
2453 * Added ssl_session_reset() to allow better multi-connection pools of
2454 SSL contexts without needing to set all non-connection-specific
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002455 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002456 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2457 supported version to a server to help buggy server implementations.
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002458 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002459 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2460 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002461 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002462 * Added a generic entropy accumulator that provides support for adding
2463 custom entropy sources and added some generic and platform dependent
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002464 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002465
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002466Changes
2467 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002468 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2469 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002470 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002471 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002472 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002473 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2474 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002475 * Changed the defined key-length of DES ciphers in cipher.h to include the
2476 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002477 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002478 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002479 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2480 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002481 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2482 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002483 * Changed the used random function pointer to more flexible format. Renamed
2484 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002485 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002486 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002487 * Added permissive certificate parsing to x509parse_crt() and
2488 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002489 encountering a parse-error. Beware that the meaning of return values has
2490 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002491 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002492
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002493Bugfix
2494 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2495 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002496 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2497 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002498 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2499 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002500 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2501 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002502 * If certificate serial is longer than 32 octets, serial number is now
2503 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002504 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002505 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002506 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002507 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002508
Paul Bakker968bc982011-07-27 17:03:00 +00002509= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002510Features
2511 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002512 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002513
Paul Bakker42e59812011-06-09 15:55:41 +00002514Changes
2515 * The generic cipher and message digest layer now have normal error
2516 codes instead of integers
2517
Paul Bakker887bd502011-06-08 13:10:54 +00002518Bugfix
2519 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2520 #18)
2521
Paul Bakker828acb22011-05-27 09:25:42 +00002522= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002523Features
2524 * Added additional Cipher Block Modes to symmetric ciphers
2525 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002526 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002527 * Functions requiring File System functions can now be disabled
2528 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002529 * A error_strerror function() has been added to translate between
2530 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002531 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2532 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002533 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002534
Paul Bakker23986e52011-04-24 08:57:21 +00002535Changes
2536 * Major argument / variable rewrite. Introduced use of size_t
2537 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002538 better unsigned / signed use. Renamed internal bigint types
2539 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002540 * mpi_init() and mpi_free() now only accept a single MPI
2541 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002542 * The error codes have been remapped and combining error codes
2543 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002544 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002545 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2546 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002547 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2548 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2549 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2550 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002551 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2552 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002553 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002554
Paul Bakker3efa5752011-04-01 12:23:26 +00002555= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002556Features
2557 * Added support for PKCS#1 v2.1 encoding and thus support
2558 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002559 * Reading of Public Key files incorporated into default x509
2560 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002561 * Added mpi_fill_random() for centralized filling of big numbers
2562 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002563
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002564Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002565 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002566 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002567 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002568 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002569 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002570
2571Bugfix
2572 * Debug output of MPI's now the same independent of underlying
2573 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002574 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002575 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2576 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002577 * Fixed proper handling of RSASSA-PSS verification with variable
2578 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002579
Paul Bakker345a6fe2011-02-28 21:20:02 +00002580= Version 0.99-pre3 released on 2011-02-28
2581This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002582Features
2583 * Parsing PEM private keys encrypted with DES and AES
2584 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002585 * Added crl_app program to allow easy reading and
2586 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00002587
2588Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002589 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00002590 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01002591 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00002592
Paul Bakker400ff6f2011-02-20 10:40:16 +00002593Bugfixes
2594 * Corrected parsing of UTCTime dates before 1990 and
2595 after 1950
2596 * Support more exotic OID's when parsing certificates
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002597 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002598 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002599 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002600 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002601 * Do not bail out if no client certificate specified. Try
2602 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01002603 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002604
Paul Bakker345a6fe2011-02-28 21:20:02 +00002605Security fixes
2606 * Fixed a possible Man-in-the-Middle attack on the
2607 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01002608 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00002609
Paul Bakker9fc46592011-01-30 16:59:02 +00002610= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00002611Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00002612Note: Most of these features have been donated by Fox-IT
2613 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00002614 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00002615 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00002616 certificate fields, including Key Usage
2617 * Improved certificate verification and verification
2618 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00002619 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00002620 * Improvements to support integration in other
2621 applications:
2622 + Added generic message digest and cipher wrapper
2623 + Improved information about current capabilities,
2624 status, objects and configuration
2625 + Added verification callback on certificate chain
2626 verification to allow external blacklisting
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002627 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00002628 * Added support for PKCS#11 through the use of the
2629 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00002630
Paul Bakkerb6194992011-01-16 21:40:22 +00002631Changes
2632 * x509parse_time_expired() checks time in addition to
2633 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00002634 * The ciphers member of ssl_context and the cipher member
2635 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01002636 ciphersuite respectively. This clarifies the difference
2637 with the generic cipher layer and is better naming
2638 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00002639
Paul Bakker99ed6782011-01-05 14:48:42 +00002640= Version 0.14.0 released on 2010-08-16
2641Features
2642 * Added support for SSL_EDH_RSA_AES_128_SHA and
2643 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
2644 * Added compile-time and run-time version information
2645 * Expanded ssl_client2 arguments for more flexibility
2646 * Added support for TLS v1.1
2647
2648Changes
2649 * Made Makefile cleaner
2650 * Removed dependency on rand() in rsa_pkcs1_encrypt().
2651 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01002652 changed the prototype of rsa_pkcs1_encrypt(),
2653 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00002654 * Some SSL defines were renamed in order to avoid
2655 future confusion
2656
2657Bug fixes
2658 * Fixed CMake out of source build for tests (found by
2659 kkert)
2660 * rsa_check_private() now supports PKCS1v2 keys as well
2661 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
2662 generator
2663
2664= Version 0.13.1 released on 2010-03-24
2665Bug fixes
2666 * Fixed Makefile in library that was mistakenly merged
2667 * Added missing const string fixes
2668
2669= Version 0.13.0 released on 2010-03-21
2670Features
2671 * Added option parsing for host and port selection to
2672 ssl_client2
2673 * Added support for GeneralizedTime in X509 parsing
2674 * Added cert_app program to allow easy reading and
2675 printing of X509 certificates from file or SSL
2676 connection.
2677
2678Changes
2679 * Added const correctness for main code base
2680 * X509 signature algorithm determination is now
2681 in a function to allow easy future expansion
2682 * Changed symmetric cipher functions to
2683 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01002684 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00002685 * Added reset function for HMAC context as speed-up
2686 for specific use-cases
2687
2688Bug fixes
2689 * Fixed bug resulting in failure to send the last
2690 certificate in the chain in ssl_write_certificate() and
2691 ssl_write_certificate_request() (found by fatbob)
2692 * Added small fixes for compiler warnings on a Mac
2693 (found by Frank de Brabander)
2694 * Fixed algorithmic bug in mpi_is_prime() (found by
2695 Smbat Tonoyan)
2696
2697= Version 0.12.1 released on 2009-10-04
2698Changes
2699 * Coverage test definitions now support 'depends_on'
2700 tagging system.
2701 * Tests requiring specific hashing algorithms now honor
2702 the defines.
2703
2704Bug fixes
2705 * Changed typo in #ifdef in x509parse.c (found
2706 by Eduardo)
2707
2708= Version 0.12.0 released on 2009-07-28
2709Features
2710 * Added CMake makefiles as alternative to regular Makefiles.
2711 * Added preliminary Code Coverage tests for AES, ARC4,
2712 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
2713 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
2714 and X509parse.
2715
2716Changes
2717 * Error codes are not (necessarily) negative. Keep
2718 this is mind when checking for errors.
2719 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
2720 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
2721 * Changed interface for AES and Camellia setkey functions
2722 to indicate invalid key lengths.
2723
2724Bug fixes
2725 * Fixed include location of endian.h on FreeBSD (found by
2726 Gabriel)
2727 * Fixed include location of endian.h and name clash on
2728 Apples (found by Martin van Hensbergen)
2729 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
2730 required HMAC ipad and opad variables are not cleared.
2731 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01002732 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00002733 POLARSSL_HAVE_LONGLONG not defined (found by Giles
2734 Bathgate).
2735 * Fixed incorrect handling of negative strings in
2736 mpi_read_string() (found by code coverage tests).
2737 * Fixed segfault on handling empty rsa_context in
2738 rsa_check_pubkey() and rsa_check_privkey() (found by
2739 code coverage tests).
2740 * Fixed incorrect handling of one single negative input
2741 value in mpi_add_abs() (found by code coverage tests).
2742 * Fixed incorrect handling of negative first input
2743 value in mpi_sub_abs() (found by code coverage tests).
2744 * Fixed incorrect handling of negative first input
2745 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
2746 change also affects mpi_write_string() (found by code
2747 coverage tests).
2748 * Corrected is_prime() results for 0, 1 and 2 (found by
2749 code coverage tests).
2750 * Fixed Camellia and XTEA for 64-bit Windows systems.
2751
2752= Version 0.11.1 released on 2009-05-17
2753 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
2754 SHA-512 in rsa_pkcs1_sign()
2755
2756= Version 0.11.0 released on 2009-05-03
2757 * Fixed a bug in mpi_gcd() so that it also works when both
2758 input numbers are even and added testcases to check
2759 (found by Pierre Habouzit).
2760 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
2761 one way hash functions with the PKCS#1 v1.5 signing and
2762 verification.
2763 * Fixed minor bug regarding mpi_gcd located within the
2764 POLARSSL_GENPRIME block.
2765 * Fixed minor memory leak in x509parse_crt() and added better
2766 handling of 'full' certificate chains (found by Mathias
2767 Olsson).
2768 * Centralized file opening and reading for x509 files into
2769 load_file()
2770 * Made definition of net_htons() endian-clean for big endian
2771 systems (Found by Gernot).
2772 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01002773 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00002774 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
2775 responsible for crashes and unwanted behaviour.
2776 * Added support for Certificate Revocation List (CRL) parsing.
2777 * Added support for CRL revocation to x509parse_verify() and
2778 SSL/TLS code.
2779 * Fixed compatibility of XTEA and Camellia on a 64-bit system
2780 (found by Felix von Leitner).
2781
2782= Version 0.10.0 released on 2009-01-12
2783 * Migrated XySSL to PolarSSL
2784 * Added XTEA symmetric cipher
2785 * Added Camellia symmetric cipher
2786 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
2787 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
2788 * Fixed dangerous bug that can cause a heap overflow in
2789 rsa_pkcs1_decrypt (found by Christophe Devine)
2790
2791================================================================
2792XySSL ChangeLog
2793
2794= Version 0.9 released on 2008-03-16
2795
2796 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
2797 * Enabled support for large files by default in aescrypt2.c
2798 * Preliminary openssl wrapper contributed by David Barrett
2799 * Fixed a bug in ssl_write() that caused the same payload to
2800 be sent twice in non-blocking mode when send returns EAGAIN
2801 * Fixed ssl_parse_client_hello(): session id and challenge must
2802 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
2803 * Added user-defined callback debug function (Krystian Kolodziej)
2804 * Before freeing a certificate, properly zero out all cert. data
2805 * Fixed the "mode" parameter so that encryption/decryption are
2806 not swapped on PadLock; also fixed compilation on older versions
2807 of gcc (bug reported by David Barrett)
2808 * Correctly handle the case in padlock_xcryptcbc() when input or
2809 ouput data is non-aligned by falling back to the software
2810 implementation, as VIA Nehemiah cannot handle non-aligned buffers
2811 * Fixed a memory leak in x509parse_crt() which was reported by Greg
2812 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
2813 Matthew Page who reported several bugs
2814 * Fixed x509_get_ext() to accept some rare certificates which have
2815 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
2816 * Added support on the client side for the TLS "hostname" extension
2817 (patch contributed by David Patino)
2818 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
2819 string is passed as the CN (bug reported by spoofy)
2820 * Added an option to enable/disable the BN assembly code
2821 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
2822 * Disabled obsolete hash functions by default (MD2, MD4); updated
2823 selftest and benchmark to not test ciphers that have been disabled
2824 * Updated x509parse_cert_info() to correctly display byte 0 of the
2825 serial number, setup correct server port in the ssl client example
2826 * Fixed a critical denial-of-service with X.509 cert. verification:
2827 peer may cause xyssl to loop indefinitely by sending a certificate
2828 for which the RSA signature check fails (bug reported by Benoit)
2829 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
2830 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
2831 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
2832 * Modified ssl_parse_client_key_exchange() to protect against
2833 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
2834 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
2835 * Updated rsa_gen_key() so that ctx->N is always nbits in size
2836 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
2837 David Barrett and Dusan Semen
2838
2839= Version 0.8 released on 2007-10-20
2840
2841 * Modified the HMAC functions to handle keys larger
2842 than 64 bytes, thanks to Stephane Desneux and gary ng
2843 * Fixed ssl_read_record() to properly update the handshake
2844 message digests, which fixes IE6/IE7 client authentication
2845 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
2846 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
2847 * Added user-defined callbacks for handling I/O and sessions
2848 * Added lots of debugging output in the SSL/TLS functions
2849 * Added preliminary X.509 cert. writing by Pascal Vizeli
2850 * Added preliminary support for the VIA PadLock routines
2851 * Added AES-CFB mode of operation, contributed by chmike
2852 * Added an SSL/TLS stress testing program (ssl_test.c)
2853 * Updated the RSA PKCS#1 code to allow choosing between
2854 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
2855 * Updated ssl_read() to skip 0-length records from OpenSSL
2856 * Fixed the make install target to comply with *BSD make
2857 * Fixed a bug in mpi_read_binary() on 64-bit platforms
2858 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
2859 * Fixed a long standing memory leak in mpi_is_prime()
2860 * Replaced realloc with malloc in mpi_grow(), and set
2861 the sign of zero as positive in mpi_init() (reported
2862 by Jonathan M. McCune)
2863
2864= Version 0.7 released on 2007-07-07
2865
2866 * Added support for the MicroBlaze soft-core processor
2867 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
2868 connections from being established with non-blocking I/O
2869 * Fixed a couple bugs in the VS6 and UNIX Makefiles
2870 * Fixed the "PIC register ebx clobbered in asm" bug
2871 * Added HMAC starts/update/finish support functions
2872 * Added the SHA-224, SHA-384 and SHA-512 hash functions
2873 * Fixed the net_set_*block routines, thanks to Andreas
2874 * Added a few demonstration programs: md5sum, sha1sum,
2875 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
2876 * Added new bignum import and export helper functions
2877 * Rewrote README.txt in program/ssl/ca to better explain
2878 how to create a test PKI
2879
2880= Version 0.6 released on 2007-04-01
2881
2882 * Ciphers used in SSL/TLS can now be disabled at compile
2883 time, to reduce the memory footprint on embedded systems
2884 * Added multiply assembly code for the TriCore and modified
2885 havege_struct for this processor, thanks to David Patiño
2886 * Added multiply assembly code for 64-bit PowerPCs,
2887 thanks to Peking University and the OSU Open Source Lab
2888 * Added experimental support of Quantum Cryptography
2889 * Added support for autoconf, contributed by Arnaud Cornet
2890 * Fixed "long long" compilation issues on IA-64 and PPC64
2891 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
2892 was not being correctly defined on ARM and MIPS
2893
2894= Version 0.5 released on 2007-03-01
2895
2896 * Added multiply assembly code for SPARC and Alpha
2897 * Added (beta) support for non-blocking I/O operations
2898 * Implemented session resuming and client authentication
2899 * Fixed some portability issues on WinCE, MINIX 3, Plan9
2900 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
2901 * Improved the performance of the EDH key exchange
2902 * Fixed a bug that caused valid packets with a payload
2903 size of 16384 bytes to be rejected
2904
2905= Version 0.4 released on 2007-02-01
2906
2907 * Added support for Ephemeral Diffie-Hellman key exchange
2908 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
2909 * Various improvement to the modular exponentiation code
2910 * Rewrote the headers to generate the API docs with doxygen
2911 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
2912 generated) and in ssl_parse_client_hello (max. client
2913 version was not properly set), thanks to Didier Rebeix
2914 * Fixed another bug in ssl_parse_client_hello: clients with
2915 cipherlists larger than 96 bytes were incorrectly rejected
2916 * Fixed a couple memory leak in x509_read.c
2917
2918= Version 0.3 released on 2007-01-01
2919
2920 * Added server-side SSLv3 and TLSv1.0 support
2921 * Multiple fixes to enhance the compatibility with g++,
2922 thanks to Xosé Antón Otero Ferreira
2923 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01002924 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00002925 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
2926 * Updated timing.c for improved compatibility with i386
2927 and 486 processors, thanks to Arnaud Cornet
2928
2929= Version 0.2 released on 2006-12-01
2930
2931 * Updated timing.c to support ARM and MIPS arch
2932 * Updated the MPI code to support 8086 on MSVC 1.5
2933 * Added the copyright notice at the top of havege.h
2934 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
2935 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
2936 * Fixed a bug reported by Torsten Lauter in ssl_read_record
2937 * Fixed a bug in rsa_check_privkey that would wrongly cause
2938 valid RSA keys to be dismissed (thanks to oldwolf)
2939 * Fixed a bug in mpi_is_prime that caused some primes to fail
2940 the Miller-Rabin primality test
2941
2942 I'd also like to thank Younès Hafri for the CRUX linux port,
2943 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
2944 who maintains the Debian package :-)
2945
2946= Version 0.1 released on 2006-11-01