blob: f1327217304d77188b89e2d4abe02a40f65e9a65 [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
Gilles Peskinec0826f12018-03-10 23:48:10 +01003= mbed TLS x.x.x branch released xxxx-xx-xx
Gilles Peskine9c4f4032017-05-29 14:46:36 +02004
Gilles Peskine955d7042018-03-13 17:24:33 +01005Security
6 * Verify results of RSA private key operations to defend
7 against Bellcore glitch attack.
Jaeden Amero8a032e62018-03-14 18:01:54 +00008 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
9 a crash on invalid input.
10 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
11 crash on invalid input.
Manuel Pégourié-Gonnard5a9f46e2018-03-13 11:53:30 +010012 * Fix CRL parsing to reject CRLs containing unsupported critical
13 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Gilles Peskine955d7042018-03-13 17:24:33 +010014
Antonio Quartulli12ccef22017-12-20 07:03:55 +080015Features
16 * Extend PKCS#8 interface by introducing support for the entire SHA
17 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine60130042018-02-14 11:33:30 +010018 This allows reading encrypted PEM files produced by software that
19 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
20 OpenVPN Inc. Fixes #1339
Antonio Quartulli12ccef22017-12-20 07:03:55 +080021
Gilles Peskine158fc332018-03-11 00:47:54 +010022Bugfix
23 * Fix setting version TLSv1 as minimal version, even if TLS 1
24 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
25 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
26 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +030027 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
28 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +030029 Nick Wilson on issue #355
Gilles Peskine8eda5ec2018-03-11 00:21:32 +010030 * In test_suite_pk, pass valid parameters when testing for hash length
31 overflow. #1179
Gilles Peskinec5671bd2018-03-12 23:44:56 +010032 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
33 by Guido Vranken. #639
Jaeden Ameroc9908f02018-03-15 14:58:24 +000034 * Log correct number of ciphersuites used in Client Hello message. #918
Andres Amaya Garcia32ec6d42017-08-25 17:17:34 +010035 * Fix X509 CRT parsing that would potentially accept an invalid tag when
36 parsing the subject alternative names.
Jaeden Amero100273d2018-03-14 17:58:00 +000037 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
38 that could cause a key exchange to fail on valid data.
39 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
40 could cause a key exchange to fail on valid data.
Jaeden Amero32ae73b2018-03-14 17:59:59 +000041 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
42 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +010043 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
44 Found through fuzz testing.
Gilles Peskine158fc332018-03-11 00:47:54 +010045
Gilles Peskine9c4f4032017-05-29 14:46:36 +020046Changes
47 * Clarify the documentation of mbedtls_ssl_setup.
48
Jaeden Amero6a4e22c2018-02-23 11:31:04 +000049= mbed TLS 2.7.1 branch released 2018-02-23
Gilles Peskine27b07542018-02-14 14:07:48 +010050
Gilles Peskine04f9bd02018-02-22 15:22:44 +010051Default behavior changes
52 * The truncated HMAC extension now conforms to RFC 6066. This means
53 that when both sides of a TLS connection negotiate the truncated
54 HMAC extension, Mbed TLS can now interoperate with other
55 compliant implementations, but this breaks interoperability with
56 prior versions of Mbed TLS. To restore the old behavior, enable
57 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
58 config.h. Found by Andreas Walz (ivESK, Offenburg University of
59 Applied Sciences).
60
Hanno Becker7dc832b2017-11-16 17:39:34 +000061Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +010062 * Fix implementation of the truncated HMAC extension. The previous
63 implementation allowed an offline 2^80 brute force attack on the
64 HMAC key of a single, uninterrupted connection (with no
65 resumption of the session).
Hanno Becker7dc832b2017-11-16 17:39:34 +000066
Gilles Peskine27b07542018-02-14 14:07:48 +010067Bugfix
68 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
69 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +010070 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +020071 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
72 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskinef936cb12018-02-27 08:37:52 +010073 In the context of SSL, this resulted in handshake failure. Reported by
74 daniel in the Mbed TLS forum. #1351
Jaeden Ameroa0d60a42018-02-21 13:32:39 +000075 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskine27b07542018-02-14 14:07:48 +010076
77Changes
78 * Fix tag lengths and value ranges in the documentation of CCM encryption.
79 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +010080 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskine49451922018-02-21 17:59:40 +010081 * MD functions deprecated in 2.7.0 are no longer inline, to provide
82 a migration path for those depending on the library's ABI.
Gilles Peskine27b07542018-02-14 14:07:48 +010083
Simon Butcher55fc4e02018-02-05 01:09:13 +000084= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +010085
Gilles Peskine28a0c722017-10-17 19:01:38 +020086Security
Simon Butcher55fc4e02018-02-05 01:09:13 +000087 * Fix a heap corruption issue in the implementation of the truncated HMAC
88 extension. When the truncated HMAC extension is enabled and CBC is used,
89 sending a malicious application packet could be used to selectively corrupt
90 6 bytes on the peer's heap, which could potentially lead to crash or remote
91 code execution. The issue could be triggered remotely from either side in
92 both TLS and DTLS. CVE-2018-0488
93 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
94 for the key size, which could potentially lead to crash or remote code
95 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
96 Qualcomm Technologies Inc. CVE-2018-0487
97 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
98 zeros.
99 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
100 64 KiB to the address of the SSL buffer and causing a wrap around.
101 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +0100102 default enabled) maximum fragment length extension is disabled in the
103 config and the application data buffer passed to mbedtls_ssl_write
104 is larger than the internal message buffer (16384 bytes by default), the
105 latter overflows. The exploitability of this issue depends on whether the
106 application layer can be forced into sending such large packets. The issue
107 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +0000108 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
109 Fixes #707.
110 * Add a provision to prevent compiler optimizations breaking the time
111 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +0100112 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +0100113 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +0300114 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
115 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +0100116 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
117 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000118 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
119 data. Previously, trailing zero bytes were detected and omitted for the
120 sake of saving memory, but potentially leading to slight timing
121 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +0100122 * Wipe stack buffer temporarily holding EC private exponent
123 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000124 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +0100125 (server-side). Could result in application crash, but only if an ALPN
126 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100127 * Change default choice of DHE parameters from untrustworthy RFC 5114
128 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
129 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +0200130
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200131Features
132 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +0100133 * The selftest program can execute a subset of the tests based on command
134 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +0200135 * New unit tests for timing. Improve the self-test to be more robust
136 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +0100137 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +0000138 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +0100139 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +0100140 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +0300141 * Add support for alternative implementations for ECDSA, controlled by new
142 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
143 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +0300144 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +0300145 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +0300146 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000147 * Add support for alternative implementation of ECDH, controlled by the
148 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +0300149 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +0300150 The following functions from the ECDH module can be replaced
151 with an alternative implementation:
152 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000153 * Add support for alternative implementation of ECJPAKE, controlled by
154 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000155 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +0200156
Hanno Beckera47023e2017-12-22 17:08:03 +0000157API Changes
158 * Extend RSA interface by multiple functions allowing structure-
159 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +0000160 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +0000161 up RSA contexts from partial key material and having them completed to the
162 needs of the implementation automatically. This allows to setup private RSA
163 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
164 purpose or CRT and/or blinding.
165 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
166 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100167 * The following functions in the message digest modules (MD2, MD4, MD5,
168 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
169 The new functions change the return type from void to int to allow
170 returning error codes when using MBEDTLS_<MODULE>_ALT.
171 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
172 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
173 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100174 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200175
Ron Eldor73a38172017-10-03 15:58:26 +0300176New deprecations
177 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000178 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100179 * Direct manipulation of structure fields of RSA contexts is deprecated.
180 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000181 * Deprecate usage of message digest functions that return void
182 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
183 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
184 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
185 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100186 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
187 parameters from RFC 3526 or the newly added parameters from RFC 7919.
188 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
189 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
190 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000191 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
192 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100193 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100194
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100195Bugfix
196 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
197 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100198 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
199 Found by projectgus and jethrogb, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100200 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300201 * Parse signature algorithm extension when renegotiating. Previously,
202 renegotiated handshakes would only accept signatures using SHA-1
203 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000204 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
205 dates on leap years with 100 and 400 intervals are handled correctly. Found
206 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200207 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
208 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100209 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
210 Found independently by Florian in the mbed TLS forum and by Mishamax.
211 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100212 * Fix variable used before assignment compilation warnings with IAR
213 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000214 * Fix unchecked return codes from AES, DES and 3DES functions in
215 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
216 If a call to one of the functions of the cryptographic primitive modules
217 failed, the error may not be noticed by the function
218 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
219 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100220 * Include configuration file in md.h, to fix compilation warnings.
221 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100222 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
223 writing routines that prevented these functions to work with alternative
224 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100225 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
226 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100227 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000228 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100229 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000230 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100231 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000232 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000233 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100234 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100235 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100236 * Add size-checks for record and handshake message content, securing
237 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300238 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
239 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +0100240 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000241 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100242 * Fix possible memory leaks in mbedtls_gcm_self_test().
243 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +0000244 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
245 RSA test suite where the failure of CTR DRBG initialization lead to
246 freeing an RSA context and several MPI's without proper initialization
247 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +0100248 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +0100249 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
250 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000251 * Fix an issue in the cipher decryption with the mode
252 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
253 Note, this padding mode is not used by the TLS protocol. Found and fixed by
254 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +0100255 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
256 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
257 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
258 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +0100259 structure. Do not assume that zeroizing a context is a correct way to
260 reset it. Found independently by ccli8 on Github.
261 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000262 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
263 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +0100264
265Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +0000266 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +0100267 and the message digest. Further, allow enabling/disabling of authority
268 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +0000269 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
270 particular, don't require P,Q if neither CRT nor blinding are
271 used. Reported and fix proposed independently by satur9nine and sliai
272 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100273 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +0100274 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
275 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +0100276 * Update all internal usage of deprecated message digest functions to the
277 new ones with return codes. In particular, this modifies the
278 mbedtls_md_info_t structure. Propagate errors from these functions
279 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +0000280 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +0100281 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
282 modules where the software implementation can be replaced by a hardware
283 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +0100284 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
285 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100286
Simon Butcher72ea31b2017-08-10 11:51:16 +0100287= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +0200288
Simon Butcherb060cc22017-07-28 01:04:34 +0100289Security
Simon Butcher01971d02017-08-10 10:48:01 +0100290 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherb060cc22017-07-28 01:04:34 +0100291 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
292 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +0100293 (default: 8) intermediates, even when it was not trusted. This could be
294 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +0100295 (the default), the handshake was correctly aborted).
296 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +0100297 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
298 Found by Laurent Simon.
Simon Butcherb060cc22017-07-28 01:04:34 +0100299
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100300Features
301 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia052ac862017-07-12 11:27:05 +0100302 and the context struct mbedtls_platform_context to perform
303 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia586d3772017-07-18 10:24:26 +0100304 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +0100305 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +0100306 some embedded environments to provide a means of initialising underlying
307 cryptographic acceleration hardware.
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100308
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200309API Changes
310 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
311 API consistent with mbed TLS 2.5.0. Specifically removed the inline
312 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +0100313 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
314 by James Cowgill. #978
Simon Butcherb060cc22017-07-28 01:04:34 +0100315 * Certificate verification functions now set flags to -1 in case the full
316 chain was not verified due to an internal error (including in the verify
317 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +0100318 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherb060cc22017-07-28 01:04:34 +0100319 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +0100320 a fatal error in the verify callback.
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200321
Ron Eldor5a21fd62016-12-16 16:15:56 +0200322Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +0100323 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
324 Reported by roberto. #716
325 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor8ab05952017-01-09 19:27:59 +0200326 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +0100327 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +0100328 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
329 in the case of an error. Found by redplait. #590
Ron Eldor7269fee2017-01-12 14:50:50 +0200330 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100331 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciaaa27dfe2017-05-04 11:05:55 +0100332 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
333 compilation when using ARM Compiler 6.
Simon Butcher00d3cc62017-07-26 17:25:55 +0100334 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100335 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher00d3cc62017-07-26 17:25:55 +0100336 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
337 KNOX Security, Samsung Research America
Andres AG2e3ddfa2017-02-17 13:54:43 +0000338 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100339 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e3ddfa2017-02-17 13:54:43 +0000340 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
341 KNOX Security, Samsung Research America
Simon Butcher00d3cc62017-07-26 17:25:55 +0100342 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100343 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher00d3cc62017-07-26 17:25:55 +0100344 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +0100345 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +0100346 function mbedtls_time() instead. Found by wairua. #666
347 * Avoid shadowing of time and index functions through mbed TLS function
348 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +0200349
Janos Follathbfea4a72017-06-22 10:02:07 +0100350Changes
Janos Follath32529402017-06-22 10:02:07 +0100351 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +0100352 64-bit division. This is useful on embedded platforms where 64-bit division
353 created a dependency on external libraries. #708
Janos Follathbfea4a72017-06-22 10:02:07 +0100354 * Removed mutexes from ECP hardware accelerator code. Now all hardware
355 accelerator code in the library leaves concurrency handling to the
356 platform. Reported by Steven Cooreman. #863
Andres Amaya Garcia92fcfe22017-06-26 12:57:44 +0100357 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
358 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100359 * Added a test script that can be hooked into git that verifies commits
360 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +0100361 * Improve documentation of PKCS1 decryption functions.
Janos Follathbfea4a72017-06-22 10:02:07 +0100362
Simon Butcherf2a597f2017-06-20 23:08:10 +0100363= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +0100364
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200365Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +0100366 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
367 The issue could only happen client-side with renegotiation enabled.
368 Could result in DoS (application crash) or information leak
369 (if the application layer sent data read from mbedtls_ssl_read()
370 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +0200371 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
372 certificate verification. SHA-1 can be turned back on with a compile-time
373 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +0200374 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
375 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +0200376 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
377 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200378
Hanno Beckereccf60c2017-06-05 15:19:01 +0100379Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +0100380 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
381 valid C and they prevented the test from compiling in Visual Studio 2015
382 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +0100383 * Fix insufficient support for signature-hash-algorithm extension,
384 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +0100385 * Fix behaviour that hid the original cause of fatal alerts in some cases
386 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +0200387 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100388 * Fix SSLv3 renegotiation behaviour and stop processing data received from
389 peer after sending a fatal alert to refuse a renegotiation attempt.
390 Previous behaviour was to keep processing data even after the alert has
391 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +0100392 * Accept empty trusted CA chain in authentication mode
393 MBEDTLS_SSL_VERIFY_OPTIONAL.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100394 Found by jethrogb. #864
395 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
396 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
397 reflect bad EC curves within verification result.
398 * Fix bug that caused the modular inversion function to accept the invalid
399 modulus 1 and therefore to hang. Found by blaufish. #641.
400 * Fix incorrect sign computation in modular exponentiation when the base is
401 a negative MPI. Previously the result was always negative. Found by Guido
402 Vranken.
403 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
404 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +0200405
Gilles Peskine36091fe2017-05-03 16:55:03 +0200406Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +0100407 * Send fatal alerts in more cases. The previous behaviour was to skip
408 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +0000409 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +0100410 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +0000411 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +0200412
Simon Butcher9f770172017-05-15 15:13:59 +0100413= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100414
Janos Follath45182a02017-03-23 10:41:56 +0000415Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +0100416 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +0100417 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
418 Simon.
Janos Follath45182a02017-03-23 10:41:56 +0000419 * Add exponent blinding to RSA private operations as a countermeasure
420 against side-channel attacks like the cache attack described in
421 https://arxiv.org/abs/1702.08719v2.
422 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
423 Clémentine Maurice and Stefan Mangard.
424
Simon Butcher4775e832017-05-13 22:56:08 +0100425Features
Janos Follath5a1c0e72017-06-16 09:00:07 +0100426 * Add hardware acceleration support for the Elliptic Curve Point module.
427 This involved exposing parts of the internal interface to enable
428 replacing the core functions and adding and alternative, module level
429 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +0100430 * Add a new configuration option to 'mbedtls_ssl_config' to enable
431 suppressing the CA list in Certificate Request messages. The default
432 behaviour has not changed, namely every configured CAs name is included.
433
Andres AGf5bf7182017-03-03 14:09:56 +0000434API Changes
435 * The following functions in the AES module have been deprecated and replaced
436 by the functions shown below. The new functions change the return type from
437 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
438 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
439 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
440 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
441
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100442Bugfix
443 * Remove macros from compat-1.3.h that correspond to deleted items from most
444 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100445 * Fixed issue in the Threading module that prevented mutexes from
446 initialising. Found by sznaider. #667 #843
447 * Add checks in the PK module for the RSA functions on 64-bit systems.
448 The PK and RSA modules use different types for passing hash length and
449 without these checks the type cast could lead to data loss. Found by Guido
450 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100451
Simon Butcherb65c2be2017-03-10 18:50:44 +0000452= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +0100453
Janos Follath182013f2016-10-25 10:50:22 +0100454Security
Simon Butcherb65c2be2017-03-10 18:50:44 +0000455 * Add checks to prevent signature forgeries for very large messages while
456 using RSA through the PK module in 64-bit systems. The issue was caused by
457 some data loss when casting a size_t to an unsigned int value in the
458 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
459 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +0000460 * Fixed potential livelock during the parsing of a CRL in PEM format in
461 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
462 characters after the footer could result in the execution of an infinite
463 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
464 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +0100465 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
466 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +0000467 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +0000468 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
469 when verifying the validity of a key on secp224k1. This could be
470 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +0000471 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +0000472 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
473 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +0000474
Andres AG703990b2016-10-24 11:23:36 +0100475Bugfix
Andres AGd1650662016-12-09 17:26:23 +0000476 * Fix output certificate verification flags set by x509_crt_verify_top() when
477 traversing a chain of trusted CA. The issue would cause both flags,
478 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
479 set when the verification conditions are not met regardless of the cause.
480 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +0000481 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
482 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
483 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +0000484 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
485 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +0000486 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +0000487 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
488 would compare 64 bits of the record counter instead of 48 bits as indicated
489 in RFC 6347 Section 4.3.1. This could cause the execution of the
490 renegotiation routines at unexpected times when the protocol is DTLS. Found
491 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +0100492 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +0100493 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +0100494 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +0000495 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
496 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
497 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
498 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
499 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
500 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +0000501 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
502 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +0000503 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
504 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +0000505 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
506 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +0000507 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
508 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +0000509 * Fixed the templates used to generate project and solution files for Visual
510 Studio 2015 as well as the files themselves, to remove a build warning
511 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +0200512 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
513 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +0000514 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
515 number to write in hexadecimal is negative and requires an odd number of
516 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +0000517 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
518 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +0100519
Janos Follath4c006cd2016-12-13 14:14:03 +0000520= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +0000521
522Changes
523 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
524 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
525 Authentication – October 2016
526
Simon Butcher19dbd412016-10-16 19:35:49 +0100527= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +0300528
Andres AG60dbc932016-09-02 15:23:48 +0100529Security
Simon Butcheref8fa012016-10-16 00:44:08 +0100530 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
531 with RFC-5116 and could lead to session key recovery in very long TLS
532 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
533 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
534 https://eprint.iacr.org/2016/475.pdf
535 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +0100536 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +0100537 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +0100538 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +0100539
Simon Butchercf8c1f42016-09-02 21:29:39 +0300540Features
Simon Butcher21c54812016-10-05 14:17:37 +0100541 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
542 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300543 * Added hardware entropy selftest to verify that the hardware entropy source
544 is functioning correctly.
545 * Added a script to print build environment info for diagnostic use in test
546 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +0100547 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
548 configure the maximum length of a file path that can be buffered when
549 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +0100550 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +0100551 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +0100552 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
553 to configure the minimum number of bytes for entropy sources using the
554 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300555
556Bugfix
557 * Fix for platform time abstraction to avoid dependency issues where a build
558 may need time but not the standard C library abstraction, and added
559 configuration consistency checks to check_config.h
560 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +0100561 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
562 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +0300563 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
564 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +0300565 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
566 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +0100567 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +0100568 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +0100569 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +0100570 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +0100571 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +0100572 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +0100573 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
574 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
575 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +0100576 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
577 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +0100578 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +0100579 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +0100580 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +0100581 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +0100582 * Fix potential byte overread when verifying malformed SERVER_HELLO in
583 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +0100584 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +0100585 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +0100586 * Fix compatibility issue with Internet Explorer client authentication,
587 where the limited hash choices prevented the client from sending its
588 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +0100589 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300590
591Changes
592 * Extended test coverage of special cases, and added new timing test suite.
593 * Removed self-tests from the basic-built-test.sh script, and added all
594 missing self-tests to the test suites, to ensure self-tests are only
595 executed once.
596 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
597 * Added support for a Yotta specific configuration file -
598 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +0100599 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +0100600 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +0100601 * Renamed source file library/net.c to library/net_sockets.c to avoid
602 naming collision in projects which also have files with the common name
603 net.c. For consistency, the corresponding header file, net.h, is marked as
604 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +0100605 * Changed the strategy for X.509 certificate parsing and validation, to no
606 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300607
Simon Butcher46125fb2016-06-27 19:43:55 +0100608= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100609
Janos Follathcc4eba72016-02-10 16:25:55 +0000610Security
Janos Follathe43b81a2016-02-10 16:25:55 +0000611 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +0000612 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +0000613 * Fix potential integer overflow to buffer overflow in
614 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +0100615 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +0100616 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +0000617 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
618 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +0000619
Simon Butcher3fe6cd32016-04-26 19:51:29 +0100620Features
621 * Support for platform abstraction of the standard C library time()
622 function.
623
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100624Bugfix
625 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
626 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100627 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +0000628 * Fix potential build failures related to the 'apidoc' target, introduced
629 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100630 * Fix issue in Makefile that prevented building using armar. #386
Janos Follath4ae5c292016-02-10 11:27:43 +0000631 * Fix memory leak that occured only when ECJPAKE was enabled and ECDHE and
632 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +0000633 * Fix an issue that caused valid certificates to be rejected whenever an
634 expired or not yet valid certificate was parsed before a valid certificate
635 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +0100636 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +0000637 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +0100638 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +0000639 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
640 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +0100641 * Fix issue that caused a crash if invalid curves were passed to
642 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +0100643 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +0100644 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +0100645 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +0100646 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100647
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +0100648Changes
649 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
650 don't use the optimized assembly for bignum multiplication. This removes
651 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +0100652 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +0100653 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
654 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +0100655 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
656 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +0100657
658= mbed TLS 2.2.1 released 2016-01-05
659
660Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +0100661 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +0100662 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +0000663 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +0100664 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
665 SLOTH attack on TLS 1.2 server authentication (other attacks from the
666 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +0100667 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +0000668
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +0100669Bugfix
670 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
671 * Fix bug in certificate validation that caused valid chains to be rejected
672 when the first intermediate certificate has pathLenConstraint=0. Found by
673 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +0000674 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +0000675 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +0100676 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100677 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +0200678 datagram if a single record in a datagram is unexpected, instead only
679 drop the record and look at subsequent records (if any are present) in
680 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +0200681
682= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +0000683
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +0200684Security
685 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
686 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +0000687 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100688 * Fix potential heap corruption on Windows when
689 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
690 triggered remotely. Found by Guido Vranken, Intelworks.
691 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +0200692 Cannot be triggered remotely unless you create X.509 certificates based
693 on untrusted input or write keys of untrusted origin. Found by Guido
694 Vranken, Intelworks.
695 * The X509 max_pathlen constraint was not enforced on intermediate
696 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +0200697 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100698
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100699Features
700 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
701 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100702 * Added a key extraction callback to accees the master secret and key
703 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +0200704
705Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +0000706 * Self-signed certificates were not excluded from pathlen counting,
707 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +0200708 provided by Janos Follath. #319
709 * Fix build error with configurations where ECDHE-PSK is the only key
710 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +0000711 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +0200712 ECHD-ECDSA if the only key exchange. Multiple reports. #310
713 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +0200714 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +0900715 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
716 size/curve against the profile. Before that, there was no way to set a
717 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +0000718 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +0100719 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
720 Found by Kurt Danielson. #292
721 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100722 * Fix bug in ASN.1 encoding of booleans that caused generated CA
723 certificates to be rejected by some applications, including OS X
724 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +0100725
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +0100726Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +0100727 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
728 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +0100729
730= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +0100731
732Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +0200733 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
734 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +0100735 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +0200736 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +0100737 once in the same handhake and mbedtls_ssl_conf_psk() was used.
738 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
739 remotely.
740 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +0100741 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +0100742 Found by Guido Vranken, Intelworks. Not triggerable remotely.
743 * Fix potential buffer overflow in mbedtls_mpi_read_string().
744 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
745 of TLS, but might be in other uses. On 32 bit machines, requires reading a
746 string of close to or larger than 1GB to exploit; on 64 bit machines, would
747 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +0200748 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +0100749 on crafted PEM input data. Found and fix provided by Guido Vranken,
750 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +0200751 accept PEM data from an untrusted source.
752 * Fix possible heap buffer overflow in base64_encoded() when the input
753 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +0100754 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +0100755 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +0100756 the same mbedtls_ssl_config object and memory allocation fails. Found by
757 Guido Vranken, Intelworks. Cannot be forced remotely.
758 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +0100759 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +0100760 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +0100761 Found by Guido Vranken, Intelworks.
762
763Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +0100764 * Fix compile error in net.c with musl libc. Found and patch provided by
765 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +0100766 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +0100767
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +0200768Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +0200769 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
770 domain names are compliant with RFC 1035.
771 * Fixed paths for check_config.h in example config files. (Found by bachp)
772 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200773
774= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +0100775
776Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200777 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +0100778 signatures. (Found by Florian Weimer, Red Hat.)
779 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +0200780 * Fix possible client-side NULL pointer dereference (read) when the client
781 tries to continue the handshake after it failed (a misuse of the API).
782 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +0100783 afl-fuzz.)
784
785Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +0200786 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
787 * Fix off-by-one error in parsing Supported Point Format extension that
788 caused some handshakes to fail.
789
790Changes
791 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
792 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +0100793 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200794 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +0200795 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200796 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +0200797 detected and mbedtls_ssl_read() will return
798 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200799 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +0200800
801= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +0200802
803Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +0200804 * Added support for yotta as a build system.
805 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200806
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +0200807Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200808 * Fix segfault in the benchmark program when benchmarking DHM.
809 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +0200810 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +0200811 * Fix bug when parsing a ServerHello without extensions (found by David
812 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +0200813 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
814 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +0200815 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
816 installed (found by Rawi666).
817 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +0200818 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +0200819 (found by robotanarchy) (#232).
820 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +0200821 tests (found by robotanarchy) (#232).
822 * Fix missing -static-libgcc when building shared libraries for Windows
823 with make.
Simon Butcher52754592015-09-03 13:06:01 +0100824 * Fix link error when building shared libraries for Windows with make.
825 * Fix error when loading libmbedtls.so.
826 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
827 be always used (found by dcb314) (#235)
828 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
829 result trying to unlock an unlocked mutex on invalid input (found by
830 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200831 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +0200832 * Fix memory corruption on client with overlong PSK identity, around
833 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200834 Aleksandrs Saveljevs) (#238)
835 * Fix unused function warning when using MBEDTLS_MDx_ALT or
836 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +0200837 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
838
839Changes
Simon Butcher52754592015-09-03 13:06:01 +0100840 * The PEM parser now accepts a trailing space at end of lines (#226).
841 * It is now possible to #include a user-provided configuration file at the
842 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
843 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +0200844 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +0100845 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +0100846 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +0200847 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +0200848 Hugo Leisink) (#210).
849 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
850 length.
851
852= mbed TLS 2.0.0 released 2015-07-13
853
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +0200854Features
855 * Support for DTLS 1.0 and 1.2 (RFC 6347).
856 * Ability to override core functions from MDx, SHAx, AES and DES modules
857 with custom implementation (eg hardware accelerated), complementing the
858 ability to override the whole module.
859 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +0200860 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +0200861 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +0200862 which algorithms and key sizes (curves for ECDSA) are acceptable.
863 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200864 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +0100865 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200866 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +0100867
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +0200868API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +0200869 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
870 You now need to link to all of them if you use TLS for example.
871 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200872 Some names have been further changed to make them more consistent.
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +0200873 Migration helpers scripts/rename.pl and include/mbedlts/compat-1.3.h are
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +0200874 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +0200875 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +0200876 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +0200877 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +0200878 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +0200879 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
880 * The following _init() functions that could return errors have
Tillmann Karras588ad502015-09-25 04:27:22 +0200881 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +0200882 should generally be the first function called on this context after init:
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +0100883 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +0200884 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
885 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
886 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
887 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +0100888 Note that for mbedtls_ssl_setup(), you need to be done setting up the
889 ssl_config structure before calling it.
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +0200890 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
891 ssl_set_session() and ssl_set_client_transport_id(), plus
892 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
893 (see rename.pl and compat-1.3.h above) and their first argument's type
894 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +0200895 * ssl_set_bio() changed signature (contexts merged, order switched, one
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +0100896 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +0200897 * The following functions have been introduced and must be used in callback
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +0100898 implementations (SNI, PSK) instead of their *conf counterparts:
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +0200899 mbedtls_ssl_set_hs_own_cert()
900 mbedtls_ssl_set_hs_ca_chain()
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +0200901 mbedtls_ssl_set_hs_psk()
902 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +0200903 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +0100904 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +0200905 pointer, parameters reordered).
906 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
907 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +0100908 * The SSL debug callback gained two new arguments (file name, line number).
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +0200909 * Debug modes were removed.
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +0100910 * mbedtls_ssl_conf_truncated_hmac() now returns void.
911 * mbedtls_memory_buffer_alloc_init() now returns void.
912 * X.509 verification flags are now an uint32_t. Affect the signature of:
913 mbedtls_ssl_get_verify_result()
914 mbedtls_x509_ctr_verify_info()
915 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +0200916 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
917 * The following functions changed prototype to avoid an in-out length
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +0200918 parameter:
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +0200919 mbedtls_base64_encode()
920 mbedtls_base64_decode()
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +0200921 mbedtls_mpi_write_string()
922 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +0200923 * In the NET module, all "int" and "int *" arguments for file descriptors
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +0200924 changed type to "mbedtls_net_context *".
925 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +0100926 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
927 return void.
928 * ecdsa_write_signature() gained an addtional md_alg argument and
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +0100929 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +0200930 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
931 * Last argument of x509_crt_check_key_usage() and
932 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +0000933 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +0200934 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
935 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +0200936 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +0000937 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
938 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +0200939 length parameter to include the terminating null byte for PEM input.
940 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +0200941 * calloc() is now used instead of malloc() everywhere. API of platform
942 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +0200943 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200944 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
945 (support for renegotiation now needs explicit enabling in config.h).
946 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +0200947 in config.h
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +0200948 * net_connect() and net_bind() have a new 'proto' argument to choose
949 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +0200950 Their 'port' argument type is changed to a string.
951 * Some constness fixes
952
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +0200953Removals
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +0200954 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200955 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
956 mbedtls_ecp_muladd().
957 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
958 (use generic functions from md.h)
959 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
960 waiting function.
961 * Removed test DHM parameters from the test certs module.
962 * Removed the PBKDF2 module (use PKCS5).
963 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
964 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
965 * Removed openssl.h (very partial OpenSSL compatibility layer).
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +0100966 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
967 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
968 been removed (compiler is required to support 32-bit operations).
969 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +0200970 * Removed test program o_p_test, the script compat.sh does more.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +0100971 * Removed test program ssl_test, superseded by ssl-opt.sh.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +0200972 * Removed helper script active-config.pl
973
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +0200974New deprecations
975 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +0200976 argument (allowing memory savings if HMAC is not used)
977
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +0100978Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +0200979 * Renamed a few headers to include _internal in the name. Those headers are
980 not supposed to be included by users.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +0100981 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +0100982 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +0200983 * Changed cipher_base_t into an opaque structure.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +0100984 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
985 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +0000986 * Removed r and s from ecdsa_context
987 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +0100988
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +0200989Default behavior changes
990 * The default minimum TLS version is now TLS 1.0.
991 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +0100992 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +0200993 * Support for receiving SSLv2 ClientHello is now disabled by default at
994 compile time.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +0100995 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +0200996 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
997 enabled in the default configuration, this is only noticeable if using a
998 custom config.h
999 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
1000 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
1001 chain verification.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001002 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001003 * The following functions are now case-sensitive:
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001004 mbedtls_cipher_info_from_string()
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001005 mbedtls_ecp_curve_info_from_name()
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001006 mbedtls_md_info_from_string()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001007 mbedtls_ssl_ciphersuite_from_string()
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001008 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001009
1010Requirement changes
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001011 * The minimum MSVC version required is now 2010 (better C99 support).
1012 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
1013 * Compiler is required to support C99 types such as long long and uint32_t.
1014
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02001015API changes from the 1.4 preview branch
1016 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
1017 new prototype, and mbedtls_ssl_set_read_timeout().
1018 * The following functions now return void:
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02001019 mbedtls_ssl_conf_transport()
1020 mbedtls_ssl_conf_max_version()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001021 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001022 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
1023 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
1024 an example implementation, see mbedtls_timing_delay_context and
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001025 mbedtls_timing_set/get_delay().
1026 * With UDP sockets, it is no longer necessary to call net_bind() again
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001027 after a successful net_accept().
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001028
1029Changes
1030 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02001031 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01001032 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
1033 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02001034
1035= mbed TLS 1.3 branch
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001036
1037Security
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02001038 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
1039 extendedKeyUsage on the leaf certificate was lost (results not accessible
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02001040 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02001041 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02001042 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01001043
1044Features
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001045 * Improve ECC performance by using more efficient doubling formulas
1046 (contributed by Peter Dettman).
1047 * Add x509_crt_verify_info() to display certificate verification results.
1048 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00001049 (contributed by Daniel Kahn Gillmor).
1050 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00001051 * Add support for id-at-uniqueIdentifier in X.509 names.
1052 * Add support for overriding snprintf() (except on Windows) and exit() in
1053 the platform layer.
1054 * Add an option to use macros instead of function pointers in the platform
1055 layer (helps get rid of unwanted references).
1056 * Improved Makefiles for Windows targets by fixing library targets and making
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001057 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001058 * The benchmark program also prints heap usage for public-key primitives
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001059 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001060 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001061 speed and RAM (heap only for now) usage.
1062 * New script memory.sh helps measuring the ROM and RAM requirements of two
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01001063 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01001064 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001065 warnings on use of deprecated functions (with GCC and Clang only).
1066 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001067 errors on use of deprecated functions.
1068
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001069Bugfix
1070 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001071 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
1072 * Fix bug in entropy.c when THREADING_C is also enabled that caused
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001073 entropy_free() to crash (thanks to Rafał Przywara).
1074 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001075 once on the same context.
1076 * Fix bug in ssl_mail_client when password is longer that username (found
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001077 by Bruno Pape).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001078 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1079 (detected by Clang's 3.6 UBSan).
1080 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001081 initialized but not set (found by pravic).
1082 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001083 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001084 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001085 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1086 ssl_write() is called before the handshake is finished (introduced in
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001087 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001088 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1089 rejected.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001090 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001091 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
1092 * Fix hardclock() (only used in the benchmarking program) with some
1093 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001094 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001095 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1096 platforms.
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001097 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
1098 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001099 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1100 in 1.3.10).
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001101 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
1102 * Add missing dependency on SHA-256 in some x509 programs (reported by
1103 Gergely Budai).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001104 * Fix bug related to ssl_set_curves(): the client didn't check that the
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001105 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001106
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001107Changes
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001108 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1109 * Remove potential sources of timing variations (some contributed by Pascal
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001110 Junod).
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001111 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001112 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
1113 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001114 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
1115 more flexible (warning: OFLAGS is not used any more) (see the README)
1116 (contributed by Alon Bar-Lev).
1117 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001118 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001119 * Move from SHA-1 to SHA-256 in example programs using signatures
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001120 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001121 * Remove some unneeded inclusions of header files from the standard library
1122 "minimize" others (eg use stddef.h if only size_t is needed).
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001123 * Change #include lines in test files to use double quotes instead of angle
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001124 brackets for uniformity with the rest of the code.
1125 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001126
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001127= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001128Security
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001129 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001130 full and polarssl_free() is called (found by Mark Hasemeyer)
1131 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1132 not by default).
1133 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001134 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001135 client certificate) (found using Codenomicon Defensics).
1136 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1137 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001138 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001139 * Fix potential stack overflow while parsing crafted X.509 certificates
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001140 (TLS server is not affected if it doesn't ask for a client certificate)
1141 (found using Codenomicon Defensics).
1142 * Fix timing difference that could theoretically lead to a
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001143 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001144 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001145
1146Features
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001147 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001148 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
Paul Bakker6152b022015-04-14 15:00:09 +02001149 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001150 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001151 * Add x509_crl_parse_der().
1152 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001153 length of an X.509 verification chain.
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001154 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001155 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
1156 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001157 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001158 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1159 a compatible enough libc (eg uClibc).
1160 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001161 while using the default ciphersuite list.
1162 * Added new error codes and debug messages about selection of
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001163 ciphersuite/certificate.
1164
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001165Bugfix
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001166 * Stack buffer overflow if ctr_drbg_update() is called with too large
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001167 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1168 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001169 if memory_buffer_alloc_init() was called with buf not aligned and len not
1170 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001171 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001172 by Julian Ospald).
1173 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001174 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1175 multiple of 8 (found by Gergely Budai).
1176 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1177 Peter Vaskovic).
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001178 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1179 * ssl_get_verify_result() now works even if the handshake was aborted due
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001180 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001181 * Skip writing and parsing signature_algorithm extension if none of the
1182 key exchanges enabled needs certificates. This fixes a possible interop
1183 issue with some servers when a zero-length extension was sent. (Reported
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001184 by Peter Dettman.)
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001185 * On a 0-length input, base64_encode() did not correctly set output length
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001186 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001187
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001188Changes
1189 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
Paul Bakkere522d0f2015-01-14 16:12:48 +01001190 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001191 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001192 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001193 * Forbid repeated extensions in X.509 certificates.
1194 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001195 * A specific error is now returned when there are ciphersuites in common
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001196 but none of them is usable due to external factors such as no certificate
Paul Bakker9eac4f72014-10-20 13:56:15 +02001197 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001198 * It is now possible to disable negotiation of truncated HMAC server-side
1199 at runtime with ssl_set_truncated_hmac().
1200 * Example programs for SSL client and server now disable SSLv3 by default.
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001201 * Example programs for SSL client and server now disable RC4 by default.
Paul Bakkerb082bb52014-10-20 13:37:51 +02001202 * Use platform.h in all test suites and programs.
1203
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001204= PolarSSL 1.3.9 released 2014-10-20
Paul Bakkerb082bb52014-10-20 13:37:51 +02001205Security
1206 * Lowest common hash was selected from signature_algorithms extension in
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001207 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001208 * Remotely-triggerable memory leak when parsing some X.509 certificates
1209 (server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001210 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001211 * Remotely-triggerable memory leak when parsing crafted ClientHello
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001212 (not affected if ECC support was compiled out) (found using Codenomicon
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001213 Defensics).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001214
1215Bugfix
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001216 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001217 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
1218 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001219 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1220 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001221 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1222 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001223 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001224 * ssl_read() could return non-application data records on server while
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001225 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001226 * Server-initiated renegotiation would fail with non-blocking I/O if the
1227 write callback returned WANT_WRITE when requesting renegotiation.
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001228 * ssl_close_notify() could send more than one message in some circumstances
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001229 with non-blocking I/O.
1230 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1231 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001232 * Fix compile error with armcc in mpi_is_prime()
1233 * Fix potential bad read in parsing ServerHello (found by Adrien
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02001234 Vialletelle).
1235
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001236Changes
1237 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02001238 standard defining how to use SHA-2 with SSL 3.0).
1239 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02001240 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001241 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
1242 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001243 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
Paul Bakker1910aa72014-07-11 11:28:56 +02001244 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02001245 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
1246 RSA keys.
1247 * Accept spaces at end of line or end of buffer in base64_decode().
1248 * X.509 certificates with more than one AttributeTypeAndValue per
1249 RelativeDistinguishedName are not accepted any more.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001250
1251= PolarSSL 1.3.8 released 2014-07-11
1252Security
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02001253 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1254 It was possible to crash the server (and client) using crafted messages
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02001255 when a GCM suite was chosen.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02001256
1257Features
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02001258 * Add CCM module and cipher mode to Cipher Layer
1259 * Support for CCM and CCM_8 ciphersuites
Paul Bakker23647b42014-07-04 15:00:12 +02001260 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
1261 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02001262 * Blowfish in the cipher layer now supports variable length keys.
1263 * Add example config.h for PSK with CCM, optimized for low RAM usage.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001264 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Paul Bakker863989b2014-06-12 21:49:01 +02001265 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
1266 from the default list (inactive by default).
1267 * Add server-side enforcement of sent renegotiation requests
Paul Bakker34617722014-06-13 17:20:13 +02001268 (ssl_set_renegotiation_enforced())
1269 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02001270 ciphersuites to use and save some memory if the list is small.
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02001271
1272Changes
Paul Bakker28476e22014-07-01 15:59:04 +02001273 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
1274 required on some platforms (e.g. OpenBSD)
Paul Bakker863989b2014-06-12 21:49:01 +02001275 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
Paul Bakker5593f7c2014-05-06 10:29:28 +02001276 against unwanted compiler optimizations
1277 * md_list() now returns hashes strongest first
Paul Bakker1ebc0c52014-05-22 15:47:58 +02001278 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
Paul Bakkerdff31392014-05-22 15:06:41 +02001279 strongest offered by client.
Paul Bakker0f651c72014-05-22 15:12:19 +02001280 * All public contexts have _init() and _free() functions now for simpler
1281 usage pattern
Paul Bakker49033ba2014-06-12 21:46:13 +02001282
1283Bugfix
1284 * Fix in debug_print_msg()
1285 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakker3c38f292014-06-13 17:37:46 +02001286 * Remove less-than-zero checks on unsigned numbers
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001287 * Stricter check on SSL ClientHello internal sizes compared to actual packet
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02001288 size (found by TrustInSoft)
1289 * Fix WSAStartup() return value check (found by Peter Vaskovic)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001290 * Other minor issues (found by Peter Vaskovic)
1291 * Fix symlink command for cross compiling with CMake (found by Andre
1292 Heinecke)
1293 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02001294 * Very small records were incorrectly rejected when truncated HMAC was in
1295 use with some ciphersuites and versions (RC4 in all versions, CBC with
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02001296 versions < TLS 1.1).
1297 * Very large records using more than 224 bytes of padding were incorrectly
1298 rejected with CBC-based ciphersuites and TLS >= 1.1
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07001299 * Very large records using less padding could cause a buffer overread of up
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02001300 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
1301 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02001302 been removed in 1.3.6.)
1303 * Restore ability to locally trust a self-signed cert that is not a proper
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02001304 CA for use as an end entity certificate. (This had been removed in
1305 1.3.6.)
1306 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02001307 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
Paul Bakkerd5983182014-07-04 13:50:31 +02001308 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1309 * Fix off-by-one error in parsing Supported Point Format extension that
Paul Bakker6c343d72014-07-10 14:36:19 +02001310 caused some handshakes to fail.
1311 * Fix possible miscomputation of the premaster secret with DHE-PSK key
Paul Bakker5593f7c2014-05-06 10:29:28 +02001312 exchange that caused some handshakes to fail with other implementations.
Paul Bakker47431b62014-05-02 13:27:13 +02001313 (Failure rate <= 1/255 with common DHM moduli.)
Paul Bakkereaebbd52014-04-25 15:04:14 +02001314 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerc73079a2014-04-25 16:34:30 +02001315 * Fix base64_decode() to return and check length correctly (in case of
1316 tight buffers)
Paul Bakker0f90d7d2014-04-30 11:49:44 +02001317 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
1318 by Hui Dong)
Paul Bakker92478c32014-04-25 15:18:34 +02001319
Paul Bakker088c5c52014-04-25 11:11:10 +02001320= PolarSSL 1.3.7 released on 2014-05-02
1321Features
1322 * debug_set_log_mode() added to determine raw or full logging
Paul Bakker92478c32014-04-25 15:18:34 +02001323 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker63844402014-04-30 15:34:12 +02001324 * version_check_feature() added to check for compile-time options at
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02001325 run-time
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02001326
Paul Bakker088c5c52014-04-25 11:11:10 +02001327Changes
Paul Bakkere92f73d2014-04-18 14:08:26 +02001328 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
1329 checked and filled in the relevant module headers
1330 * Debug module only outputs full lines instead of parts
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02001331 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
1332 * AES-NI now compiles with "old" assemblers too
Paul Bakkerfdba4682014-04-25 11:48:35 +02001333 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker61885c72014-04-25 12:59:03 +02001334
1335Bugfix
Paul Bakkera7036632014-04-30 10:15:38 +02001336 * Only iterate over actual certificates in ssl_write_certificate_request()
1337 (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02001338 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
Paul Bakkerf96f7b62014-04-30 16:02:38 +02001339 Karger)
Paul Bakker33dc46b2014-04-30 16:11:39 +02001340 * cert_write app should use subject of issuer certificate as issuer of cert
1341 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02001342 ciphersuites, for full SSL frames of data.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02001343 * Improve interoperability by not writing extension length in ClientHello /
Markus Pfeiffera26a0052014-04-22 20:16:15 +00001344 ServerHello when no extensions are present (found by Matthew Page)
Barry K. Nathancf975f52014-04-23 17:40:25 -07001345 * rsa_check_pubkey() now allows an E up to N
1346 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakkere92f73d2014-04-18 14:08:26 +02001347 * mpi_fill_random() was creating numbers larger than requested on
Paul Bakker784b04f2014-04-11 15:33:59 +02001348 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001349 * Fix dependencies issues in X.509 test suite.
Paul Bakker27e36d32014-04-08 12:33:37 +02001350 * Some parts of ssl_tls.c were compiled even when the module was disabled.
1351 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Paul Bakker1cfc4582014-04-09 15:25:13 +02001352 * Fix detection of Clang on some Apple platforms with CMake
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001353 (found by Barry K. Nathan)
Paul Bakker59366212014-04-09 15:55:20 +02001354
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001355= PolarSSL 1.3.6 released on 2014-04-11
1356
Paul Bakker27e36d32014-04-08 12:33:37 +02001357Features
Paul Bakker4984d3c2014-04-04 15:39:37 +02001358 * Support for the ALPN SSL extension
1359 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02001360 * Enable verification of the keyUsage extension for CA and leaf
1361 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02001362 * Enable verification of the extendedKeyUsage extension
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02001363 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker4984d3c2014-04-04 15:39:37 +02001364
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001365Changes
1366 * x509_crt_info() now prints information about parsed extensions as well
1367 * pk_verify() now returns a specific error code when the signature is valid
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02001368 but shorter than the supplied length.
1369 * Use UTC time to check certificate validity.
1370 * Reject certificates with times not in UTC, per RFC 5280.
1371
Paul Bakker4224bc02014-04-08 14:36:50 +02001372Security
1373 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001374 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001375 * The notAfter date of some certificates was no longer checked since 1.3.5.
1376 This affects certificates in the user-supplied chain except the top
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01001377 certificate. If the user-supplied chain contains only one certificates,
Paul Bakker75a28602014-03-31 12:08:17 +02001378 it is not affected (ie, its notAfter date is properly checked).
1379 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02001380 TrustInSoft)
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02001381
1382Bugfix
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02001383 * The length of various ClientKeyExchange messages was not properly checked.
1384 * Some example server programs were not sending the close_notify alert.
Shuo Chen95a0d112014-04-04 21:04:40 -07001385 * Potential memory leak in mpi_exp_mod() when error occurs during
1386 calculation of RR.
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01001387 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
1388 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01001389 Gergely Budai).
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02001390 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
1391 (found by Gergely Budai)
Paul Bakker16300582014-04-11 13:28:43 +02001392 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
1393 Shuo Chen).
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02001394 * oid_get_numeric_string() used to truncate the output without returning an
1395 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001396 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Paul Bakker96d52652014-03-26 16:55:50 +01001397 * Calling pk_debug() on an RSA-alt key would segfault.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001398 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
1399 * Potential buffer overwrite in pem_write_buffer() because of low length
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001400 indication (found by Thijs Alkemade)
Paul Bakker6a28e722014-02-06 13:41:55 +01001401 * EC curves constants, which should be only in ROM since 1.3.3, were also
Paul Bakkerf2561b32014-02-06 15:11:55 +01001402 stored in RAM due to missing 'const's (found by Gergely Budai).
Paul Bakker2ceda572014-02-06 15:55:25 +01001403
1404= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001405Features
1406 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01001407 * Option to set the Curve preference order (disabled by default)
Paul Bakker66ff70d2014-03-26 11:54:05 +01001408 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakker6a28e722014-02-06 13:41:55 +01001409 * Ability to provide alternate timing implementation
1410 * Ability to force the entropy module to use SHA-256 as its basis
1411 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker47703a02014-02-06 15:01:20 +01001412 * Testing script ssl-opt.sh added for testing 'live' ssl option
1413 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01001414 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01001415 * Entropy module now supports seed writing and reading
1416
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001417Changes
1418 * Deprecated the Memory layer
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001419 * entropy_add_source(), entropy_update_manual() and entropy_gather()
Paul Bakker674e0b02014-03-26 13:26:52 +01001420 now thread-safe if POLARSSL_THREADING_C defined
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001421 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001422 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1423 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01001424 * Revamped the compat.sh interoperatibility script to include support for
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001425 testing against GnuTLS
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01001426 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01001427 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001428
Paul Bakker91c61bc2014-03-26 14:06:55 +01001429Security
1430 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001431 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001432 attack was already impossible when authentication is required).
1433 * Check notBefore timestamp of certificates and CRLs from the future.
1434 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001435 * Fixed possible buffer overflow with overlong PSK
Paul Bakkercd6d69a2014-02-06 15:43:21 +01001436 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01001437 TrustInSoft)
Paul Bakker3d52ab72014-03-07 10:33:55 +01001438
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01001439Bugfix
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01001440 * ecp_gen_keypair() does more tries to prevent failure because of
Alex Wilson73491422014-03-06 00:04:09 +10001441 statistics
1442 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001443 * Fixed testing with out-of-source builds using cmake
1444 * Fixed version-major intolerance in server
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01001445 * Fixed CMake symlinking on out-of-source builds
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001446 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001447 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001448 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01001449 Alex Wilson.)
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001450 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
Paul Bakker3d6504a2014-03-17 13:41:51 +01001451 * m_sleep() was sleeping twice too long on most Unix platforms.
1452 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakker77f4f392014-03-26 15:28:55 +01001453 send() would return an EAGAIN error when sending the ticket.
1454 * ssl_cache was leaking memory when reusing a timed out entry containing a
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01001455 client certificate.
Paul Bakker5fff23b2014-03-26 15:34:54 +01001456 * ssl_srv was leaking memory when client presented a timed out ticket
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001457 containing a client certificate
Paul Bakker2aca2412014-01-27 11:49:46 +01001458 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
Paul Bakker3eb96732014-01-22 13:08:19 +01001459 out_ctr failed
Paul Bakker0ac99ca2014-01-22 13:08:44 +01001460 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
Paul Bakker5862eee2014-01-22 14:18:03 +01001461 of one of them failed
Paul Bakker556efba2014-01-24 15:38:12 +01001462 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01001463 * x509_get_current_time() uses localtime_r() to prevent thread issues
Paul Bakker3eb96732014-01-22 13:08:19 +01001464
1465= PolarSSL 1.3.4 released on 2014-01-27
1466Features
1467 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakkerd75ba402014-01-24 16:11:17 +01001468 * Support for RIPEMD-160
Paul Bakkerb84582b2014-01-27 12:23:43 +01001469 * Support for AES CFB8 mode
1470 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01001471
1472Bugfix
1473 * Potential memory leak in bignum_selftest()
Paul Bakkerb84582b2014-01-27 12:23:43 +01001474 * Replaced expired test certificate
1475 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakker3eb96732014-01-22 13:08:19 +01001476 * net module handles timeouts on blocking sockets better (found by Tilman
Paul Bakker5bc07a32013-12-31 10:57:44 +01001477 Sauerbeck)
Paul Bakker014f1432013-12-02 14:54:01 +01001478 * Assembly format fixes in bn_mul.h
1479
Paul Bakker9dc53a92013-12-02 14:55:28 +01001480Security
1481 * Missing MPI_CHK calls added around unguarded mpi calls (found by
Paul Bakker48d78a52013-12-05 16:11:38 +01001482 TrustInSoft)
Paul Bakkerfdf94692013-12-17 13:09:31 +01001483
Paul Bakker5a607d22013-12-17 14:33:42 +01001484= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker23116fd2013-12-30 14:09:47 +01001485Features
Paul Bakkerf9c49532013-12-19 15:40:58 +01001486 * EC key generation support in gen_key app
Paul Bakker014f1432013-12-02 14:54:01 +01001487 * Support for adhering to client ciphersuite order preference
Paul Bakker7aa03752013-11-26 17:37:31 +01001488 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
1489 * Support for Curve25519
1490 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
1491 * Support for IPv6 in the NET module
Paul Bakkerc3d0d072013-12-02 14:50:49 +01001492 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakker4040d7e2013-12-02 14:52:57 +01001493 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakkerb14817d2013-12-02 22:03:23 +01001494
Paul Bakker5ab68ba2013-12-17 13:10:48 +01001495Changes
Paul Bakkerc7387912013-12-31 10:32:50 +01001496 * gen_prime() speedup
Paul Bakkera8fd3e32013-12-31 11:54:08 +01001497 * Speedup of ECP multiplication operation
Paul Bakker7aa03752013-11-26 17:37:31 +01001498 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001499 * Dropped use of readdir_r() instead of readdir() with threading support
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01001500 * More constant-time checks in the RSA module
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001501 * Split off curves from ecp.c into ecp_curves.c
Paul Bakkera9a028e2013-11-21 17:31:06 +01001502 * Curves are now stored fully in ROM
Paul Bakker7aa03752013-11-26 17:37:31 +01001503 * Memory usage optimizations in ECP module
1504 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker6f0636a2013-12-16 15:24:05 +01001505
Paul Bakkerf70fe812013-12-16 16:43:10 +01001506Bugfix
Paul Bakker1a56fc92013-12-19 13:51:24 +01001507 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakker6ea1a952013-12-31 11:16:03 +01001508 * Fixed X.509 hostname comparison (with non-regular characters)
1509 * SSL now gracefully handles missing RNG
Paul Bakker6992eb72013-12-31 11:35:16 +01001510 * Missing defines / cases for RSA_PSK key exchange
1511 * crypt_and_hash app checks MAC before final decryption
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001512 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakker956c9e02013-12-19 14:42:28 +01001513 * Memory leak in benchmark application
1514 * Fixed x509_crt_parse_path() bug on Windows platforms
1515 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
1516 TrustInSoft)
Paul Bakkerf4dc1862013-11-04 17:29:42 +01001517 * Fixed potential overflow in certificate size verification in
Paul Bakker08bb1872013-10-28 14:03:26 +01001518 ssl_write_certificate() (found by TrustInSoft)
1519
Paul Bakker3f917e22013-10-28 14:16:59 +01001520Security
Paul Bakker16421222013-10-28 14:37:09 +01001521 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Paul Bakker08bb1872013-10-28 14:03:26 +01001522 TrustInSoft)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001523
1524= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakkere1121b62013-10-31 14:37:37 +01001525Features
Paul Bakker7b0be682013-10-29 14:24:37 +01001526 * PK tests added to test framework
Paul Bakkere1121b62013-10-31 14:37:37 +01001527 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001528 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker677377f2013-10-28 12:54:26 +01001529
Paul Bakker16421222013-10-28 14:37:09 +01001530Changes
Paul Bakker677377f2013-10-28 12:54:26 +01001531 * Padding checks in cipher layer are now constant-time
Paul Bakker45a2c8d2013-10-28 12:57:08 +01001532 * Value comparisons in SSL layer are now constant-time
Paul Bakker68037da2013-10-28 14:02:40 +01001533 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakker50dc8502013-10-28 21:19:10 +01001534 * SSL Renegotiation was refactored
Paul Bakker93c6aa42013-10-28 22:28:09 +01001535
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01001536Bugfix
Paul Bakkerfa6a6202013-10-28 18:48:30 +01001537 * More stringent checks in cipher layer
Paul Bakkere1121b62013-10-31 14:37:37 +01001538 * Server does not send out extensions not advertised by client
Paul Bakker677377f2013-10-28 12:54:26 +01001539 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001540 * Misc fixes and additions to dependency checks
Paul Bakkerb799dec2013-10-11 10:03:27 +02001541 * Const correctness
1542 * cert_write with selfsign should use issuer_name as subject_name
Paul Bakker376e8152013-10-15 12:44:23 +02001543 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerf34673e2013-10-15 12:46:17 +02001544 * Defines to handle UEFI environment under MSVC
Paul Bakkerb799dec2013-10-11 10:03:27 +02001545 * Server-side initiated renegotiations send HelloRequest
Paul Bakkerddba8822013-10-11 09:21:56 +02001546
1547= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakker16770332013-10-11 09:59:44 +02001548Features
Paul Bakkerbe089b02013-10-14 15:51:50 +02001549 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakkera7ea6a52013-10-15 11:55:10 +02001550 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerddba8822013-10-11 09:21:56 +02001551 * Support for RSA-PSK key-exchange and ciphersuites
1552
1553Changes
1554 * RSA blinding locks for a smaller amount of time
1555 * TLS compression only allocates working buffer once
Paul Bakkerfcc17212013-10-11 09:36:52 +02001556 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02001557 * config.h is more script-friendly
Paul Bakker4aa40d42013-10-11 10:49:24 +02001558
Paul Bakkerb7c13122013-10-11 10:51:32 +02001559Bugfix
Paul Bakker5191e922013-10-11 10:54:28 +02001560 * Missing MSVC defines added
Paul Bakkerddba8822013-10-11 09:21:56 +02001561 * Compile errors with POLARSSL_RSA_NO_CRT
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001562 * Header files with 'polarssl/'
Paul Bakker41c83d32013-03-20 14:39:14 +01001563 * Const correctness
1564 * Possible naming collision in dhm_context
1565 * Better support for MSVC
1566 * threading_set_alt() name
1567 * Added missing x509write_crt_set_version()
Paul Bakkerc8676782013-08-28 12:15:11 +02001568
1569= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker8f4ddae2013-04-15 15:09:54 +02001570Features
Paul Bakkerb91c2b52013-04-19 16:05:16 +02001571 * Elliptic Curve Cryptography module added
Paul Bakker6e339b52013-07-03 13:37:05 +02001572 * Elliptic Curve Diffie Hellman module added
1573 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
Paul Bakker2466d932013-09-28 14:40:38 +02001574 (ECDHE-based ciphersuites)
Paul Bakker5ad403f2013-09-18 21:21:30 +02001575 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
Paul Bakkerf85778e2013-07-19 14:55:25 +02001576 (ECDSA-based ciphersuites)
1577 * Ability to specify allowed ciphersuites based on the protocol version.
1578 * PSK and DHE-PSK based ciphersuites added
1579 * Memory allocation abstraction layer added
Paul Bakkerda4d1c32013-08-14 12:24:34 +02001580 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
1581 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker936539a2013-08-14 13:49:20 +02001582 * Public Key abstraction layer added
Paul Bakkerca174fe2013-08-28 16:31:30 +02001583 * Parsing Elliptic Curve keys
1584 * Parsing Elliptic Curve certificates
Paul Bakker7fb4a792013-09-12 12:00:52 +02001585 * Support for max_fragment_length extension (RFC 6066)
1586 * Support for truncated_hmac extension (RFC 6066)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02001587 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
Paul Bakker8b817dc2013-09-25 18:03:58 +02001588 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
1589 * Support for session tickets (RFC 5077)
Paul Bakker41c83d32013-03-20 14:39:14 +01001590 * Certificate Request (CSR) generation with extensions (key_usage,
Paul Bakker9b5798d2013-03-13 13:53:00 +01001591 ns_cert_type)
Paul Bakkerd2f068e2013-08-27 21:19:20 +02001592 * X509 Certificate writing with extensions (basic_constraints,
1593 issuer_key_identifier, etc)
Paul Bakker68884e32013-01-07 18:20:04 +01001594 * Optional blinding for RSA, DHM and EC
1595 * Support for multiple active certificate / key pairs in SSL servers for
Paul Bakker9b5798d2013-03-13 13:53:00 +01001596 the same host (Not to be confused with SNI!)
1597
Paul Bakkerc70b9822013-04-07 22:00:46 +02001598Changes
1599 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02001600 individually
Paul Bakker2fbefde2013-06-29 16:01:15 +02001601 * Introduced separate SSL Ciphersuites module that is based on
1602 Cipher and MD information
Paul Bakker0be444a2013-08-27 21:55:01 +02001603 * Internals for SSL module adapted to have separate IV pointer that is
Paul Bakkere2ab84f2013-06-29 18:24:32 +02001604 dynamically set (Better support for hardware acceleration)
1605 * Moved all OID functionality to a separate module. RSA function
Paul Bakker9e36f042013-06-30 14:34:05 +02001606 prototypes for the RSA sign and verify functions changed as a result
Paul Bakker548957d2013-08-30 10:30:02 +02001607 * Split up the GCM module into a starts/update/finish cycle
Paul Bakker45f21c72013-09-18 15:33:49 +02001608 * Client and server now filter sent and accepted ciphersuites on minimum
1609 and maximum protocol version
Paul Bakker5ad403f2013-09-18 21:21:30 +02001610 * Ability to disable server_name extension (RFC 6066)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02001611 * Renamed error_strerror() to the less conflicting polarssl_strerror()
1612 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9b5798d2013-03-13 13:53:00 +01001613 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001614 * All RSA operations require a random generator for blinding purposes
Paul Bakker73d44312013-05-22 13:56:26 +02001615 * X509 core refactored
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02001616 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker1e6a1752013-07-26 14:10:22 +02001617 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakker003dbad2013-09-09 17:26:14 +02001618 * Support faulty X509 v1 certificates with extensions
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001619 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakkeraab30c12013-08-30 11:00:25 +02001620
1621Bugfix
1622 * Fixed parse error in ssl_parse_certificate_request()
1623 * zlib compression/decompression skipped on empty blocks
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02001624 * Support for AIX header locations in net.c module
1625 * Fixed file descriptor leaks
1626
1627Security
1628 * RSA blinding on CRT operations to counter timing attacks
1629 (found by Cyril Arnaud and Pierre-Alain Fouque)
1630
1631
1632= Version 1.2.14 released 2015-05-??
1633
1634Security
1635 * Fix potential invalid memory read in the server, that allows a client to
1636 crash it remotely (found by Caj Larsson).
1637 * Fix potential invalid memory read in certificate parsing, that allows a
1638 client to crash the server remotely if client authentication is enabled
1639 (found using Codenomicon Defensics).
1640 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
1641 https://dl.acm.org/citation.cfm?id=2714625
1642
1643Bugfix
1644 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
1645 * Fix hardclock() (only used in the benchmarking program) with some
1646 versions of mingw64 (found by kxjhlele).
1647 * Fix warnings from mingw64 in timing.c (found by kxjklele).
1648 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1649 platforms (found with Coverity Scan).
1650
1651= Version 1.2.13 released 2015-02-16
1652Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
1653 this will be made in the 1.2 branch at this point.
1654
1655Security
1656 * Fix remotely-triggerable uninitialised pointer dereference caused by
1657 crafted X.509 certificate (TLS server is not affected if it doesn't ask
1658 for a client certificate) (found using Codenomicon Defensics).
1659 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1660 (TLS server is not affected if it doesn't ask for a client certificate)
1661 (found using Codenomicon Defensics).
1662 * Fix potential stack overflow while parsing crafted X.509 certificates
1663 (TLS server is not affected if it doesn't ask for a client certificate)
1664 found using Codenomicon Defensics).
1665 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
1666 (TLS server is not affected if it doesn't ask for a client certificate).
1667
1668Bugfix
1669 * Fix potential undefined behaviour in Camellia.
1670 * Fix memory leaks in PKCS#5 and PKCS#12.
1671 * Stack buffer overflow if ctr_drbg_update() is called with too large
1672 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1673 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
1674 in 1.2.12).
1675 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1676 Peter Vaskovic).
1677 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1678 * ssl_get_verify_result() now works even if the handshake was aborted due
1679 to a failed verification (found by Fredrik Axelsson).
1680 * Skip writing and parsing signature_algorithm extension if none of the
1681 key exchanges enabled needs certificates. This fixes a possible interop
1682 issue with some servers when a zero-length extension was sent. (Reported
1683 by Peter Dettman.)
1684 * On a 0-length input, base64_encode() did not correctly set output length
Paul Bakkera6c5ea22014-10-24 16:26:29 +02001685 (found by Hendrik van den Boogaard).
1686
1687Changes
1688 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
1689 * Forbid repeated extensions in X.509 certificates.
1690 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
1691 length of an X.509 verification chain (default = 8).
1692= Version 1.2.12 released 2014-10-24
1693
1694Security
1695 * Remotely-triggerable memory leak when parsing some X.509 certificates
1696 (server is not affected if it doesn't ask for a client certificate).
1697 (Found using Codenomicon Defensics.)
1698
1699Bugfix
1700 * Fix potential bad read in parsing ServerHello (found by Adrien
1701 Vialletelle).
1702 * ssl_close_notify() could send more than one message in some circumstances
1703 with non-blocking I/O.
1704 * x509_crt_parse() did not increase total_failed on PEM error
1705 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1706 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1707 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
1708 * ssl_read() could return non-application data records on server while
1709 renegotation was pending, and on client when a HelloRequest was received.
1710 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
1711
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02001712Changes
1713 * X.509 certificates with more than one AttributeTypeAndValue per
1714 RelativeDistinguishedName are not accepted any more.
1715 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
1716 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
1717 * Accept spaces at end of line or end of buffer in base64_decode().
1718
1719= Version 1.2.11 released 2014-07-11
1720Features
1721 * Entropy module now supports seed writing and reading
1722
1723Changes
1724 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
1725 * Improvements to the CMake build system, contributed by Julian Ospald.
1726 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1727 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
1728 * Improvements to tests/Makefile, contributed by Oden Eriksson.
1729 * Use UTC time to check certificate validity.
1730 * Reject certificates with times not in UTC, per RFC 5280.
1731 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
1732 against unwanted compiler optimizations
1733
1734Security
1735 * Forbid change of server certificate during renegotiation to prevent
1736 "triple handshake" attack when authentication mode is optional (the
1737 attack was already impossible when authentication is required).
1738 * Check notBefore timestamp of certificates and CRLs from the future.
1739 * Forbid sequence number wrapping
1740 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
1741 TrustInSoft)
1742 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1743 It was possible to crash the server (and client) using crafted messages
1744 when a GCM suite was chosen.
1745
1746Bugfix
1747 * Fixed X.509 hostname comparison (with non-regular characters)
1748 * SSL now gracefully handles missing RNG
1749 * crypt_and_hash app checks MAC before final decryption
1750 * Fixed x509_crt_parse_path() bug on Windows platforms
1751 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
1752 TrustInSoft)
1753 * Fixed potential overflow in certificate size verification in
1754 ssl_write_certificate() (found by TrustInSoft)
1755 * Fix ASM format in bn_mul.h
1756 * Potential memory leak in bignum_selftest()
1757 * Replaced expired test certificate
1758 * ssl_mail_client now terminates lines with CRLF, instead of LF
1759 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
1760 * Fixed testing with out-of-source builds using cmake
1761 * Fixed version-major intolerance in server
1762 * Fixed CMake symlinking on out-of-source builds
1763 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
1764 Alex Wilson.)
1765 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
1766 out_ctr failed
1767 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
1768 of one of them failed
1769 * x509_get_current_time() uses localtime_r() to prevent thread issues
1770 * Some example server programs were not sending the close_notify alert.
1771 * Potential memory leak in mpi_exp_mod() when error occurs during
1772 calculation of RR.
1773 * Improve interoperability by not writing extension length in ClientHello
1774 when no extensions are present (found by Matthew Page)
1775 * rsa_check_pubkey() now allows an E up to N
1776 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
1777 * mpi_fill_random() was creating numbers larger than requested on
1778 big-endian platform when size was not an integer number of limbs
1779 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
1780 * Stricter check on SSL ClientHello internal sizes compared to actual packet
1781 size (found by TrustInSoft)
Paul Bakker3a2c0562013-10-07 16:22:05 +02001782 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
1783 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
1784 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1785 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
1786 * Fix base64_decode() to return and check length correctly (in case of
1787 tight buffers)
1788
1789= Version 1.2.10 released 2013-10-07
1790Changes
Paul Bakkerd93d28e2013-10-01 10:12:42 +02001791 * Changed RSA blinding to a slower but thread-safe version
Paul Bakkerc13aab12013-09-26 10:12:19 +02001792
1793Bugfix
1794 * Fixed memory leak in RSA as a result of introduction of blinding
1795 * Fixed ssl_pkcs11_decrypt() prototype
1796 * Fixed MSVC project files
1797
1798= Version 1.2.9 released 2013-10-01
1799Changes
1800 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
1801
1802Bugfix
1803 * Fixed potential memory leak when failing to resume a session
1804 * Fixed potential file descriptor leaks (found by Remi Gacogne)
1805 * Minor fixes
Paul Bakkerde656232013-06-24 19:07:34 +02001806
1807Security
1808 * Fixed potential heap buffer overflow on large hostname setting
1809 * Fixed potential negative value misinterpretation in load_file()
1810 * RSA blinding on CRT operations to counter timing attacks
1811 (found by Cyril Arnaud and Pierre-Alain Fouque)
1812
1813= Version 1.2.8 released 2013-06-19
1814Features
1815 * Parsing of PKCS#8 encrypted private key files
1816 * PKCS#12 PBE and derivation functions
1817 * Centralized module option values in config.h to allow user-defined
1818 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
1819
1820Changes
1821 * HAVEGE random generator disabled by default
1822 * Internally split up x509parse_key() into a (PEM) handler function
1823 and specific DER parser functions for the PKCS#1 and unencrypted
1824 PKCS#8 private key formats
1825 * Added mechanism to provide alternative implementations for all
1826 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
1827 config.h)
1828 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
1829 old PBKDF2 module
1830
1831Bugfix
1832 * Secure renegotiation extension should only be sent in case client
1833 supports secure renegotiation
1834 * Fixed offset for cert_type list in ssl_parse_certificate_request()
1835 * Fixed const correctness issues that have no impact on the ABI
1836 * x509parse_crt() now better handles PEM error situations
1837 * ssl_parse_certificate() now calls x509parse_crt_der() directly
1838 instead of the x509parse_crt() wrapper that can also parse PEM
1839 certificates
1840 * x509parse_crtpath() is now reentrant and uses more portable stat()
1841 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
1842 * Fixed values for 2-key Triple DES in cipher layer
1843 * ssl_write_certificate_request() can handle empty ca_chain
1844
1845Security
1846 * A possible DoS during the SSL Handshake, due to faulty parsing of
1847 PEM-encoded certificates has been fixed (found by Jack Lloyd)
1848
1849= Version 1.2.7 released 2013-04-13
1850Features
1851 * Ability to specify allowed ciphersuites based on the protocol version.
1852
1853Changes
Paul Bakker90f042d2013-03-11 11:38:44 +01001854 * Default Blowfish keysize is now 128-bits
Paul Bakkerc0463502013-02-14 11:19:38 +01001855 * Test suites made smaller to accommodate Raspberry Pi
1856
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01001857Bugfix
1858 * Fix for MPI assembly for ARM
Paul Bakkere3e4a592013-02-28 10:20:53 +01001859 * GCM adapted to support sizes > 2^29
Paul Bakker37286a52013-03-06 16:55:11 +01001860
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01001861= Version 1.2.6 released 2013-03-11
Paul Bakkerc0463502013-02-14 11:19:38 +01001862Bugfix
Paul Bakkerb3869132013-02-28 17:21:01 +01001863 * Fixed memory leak in ssl_free() and ssl_reset() for active session
1864 * Corrected GCM counter incrementation to use only 32-bits instead of
1865 128-bits (found by Yawning Angel)
1866 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakkera43231c2013-02-28 17:33:49 +01001867 * Fixed net_bind() for specified IP addresses on little endian systems
1868 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakker78a8c712013-03-06 17:01:52 +01001869
1870Changes
Paul Bakkere81beda2013-03-06 17:40:46 +01001871 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
1872 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
Paul Bakkerb3869132013-02-28 17:21:01 +01001873 PKCS#1 v2.1 functions
Paul Bakkere47b34b2013-02-27 14:48:00 +01001874 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
1875 or rsa_rsaes_oaep_decrypt()
1876 * Re-added handling for SSLv2 Client Hello when the define
Paul Bakker8804f692013-02-28 18:06:26 +01001877 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
1878 * The SSL session cache module (ssl_cache) now also retains peer_cert
1879 information (not the entire chain)
Paul Bakkere47b34b2013-02-27 14:48:00 +01001880
Paul Bakkerc7a2da42013-02-02 19:23:57 +01001881Security
Paul Bakker8fe40dc2013-02-02 12:43:08 +01001882 * Removed further timing differences during SSL message decryption in
1883 ssl_decrypt_buf()
Paul Bakkerd66f0702013-01-31 16:57:45 +01001884 * Removed timing differences due to bad padding from
1885 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
Paul Bakker40865c82013-01-31 17:13:13 +01001886 operations
1887
Paul Bakkera35aa542013-03-06 17:06:21 +01001888= Version 1.2.5 released 2013-02-02
Paul Bakker8fe40dc2013-02-02 12:43:08 +01001889Changes
Paul Bakker45829992013-01-03 14:52:21 +01001890 * Allow enabling of dummy error_strerror() to support some use-cases
1891 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01001892 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker1961b702013-01-25 14:49:24 +01001893 * Sending of security-relevant alert messages that do not break
Paul Bakker45829992013-01-03 14:52:21 +01001894 interoperability can be switched on/off with the flag
1895 POLARSSL_SSL_ALL_ALERT_MESSAGES
1896
1897Security
Paul Bakker40628ba2013-01-03 10:50:31 +01001898 * Removed timing differences during SSL message decryption in
1899 ssl_decrypt_buf() due to badly formatted padding
1900
Paul Bakker21dca692013-01-03 11:41:08 +01001901= Version 1.2.4 released 2013-01-25
Paul Bakker9c94cdd2013-01-22 13:45:33 +01001902Changes
Paul Bakker68884e32013-01-07 18:20:04 +01001903 * More advanced SSL ciphersuite representation and moved to more dynamic
1904 SSL core
Paul Bakker40628ba2013-01-03 10:50:31 +01001905 * Added ssl_handshake_step() to allow single stepping the handshake process
1906
Paul Bakker9c94cdd2013-01-22 13:45:33 +01001907Bugfix
1908 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakkerfb1ba782012-11-26 16:28:25 +01001909 * Handle future version properly in ssl_write_certificate_request()
Paul Bakkerdf5069c2012-11-24 12:20:19 +01001910 * Correctly handle CertificateRequest message in client for <= TLS 1.1
Paul Bakkere667c982012-11-20 13:50:22 +01001911 without DN list
1912
1913= Version 1.2.3 released 2012-11-26
Paul Bakkerdf5069c2012-11-24 12:20:19 +01001914Bugfix
Paul Bakkere667c982012-11-20 13:50:22 +01001915 * Server not always sending correct CertificateRequest message
Paul Bakker7c90da92012-11-23 14:02:40 +01001916
Paul Bakkerdf5069c2012-11-24 12:20:19 +01001917= Version 1.2.2 released 2012-11-24
1918Changes
Paul Bakker7c90da92012-11-23 14:02:40 +01001919 * Added p_hw_data to ssl_context for context specific hardware acceleration
Paul Bakker14926332012-11-20 10:58:09 +01001920 data
Hanno Becker01a0e072017-07-26 11:49:40 +01001921 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkerb8156822012-11-13 12:52:17 +00001922
Paul Bakker34d8dbc2012-11-14 12:11:38 +00001923Bugfixes
1924 * Fixed client authentication compatibility
1925 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
1926
Paul Bakker7a2538e2012-11-02 10:59:36 +00001927= Version 1.2.1 released 2012-11-20
1928Changes
Paul Bakkerd9374b02012-11-02 11:02:58 +00001929 * Depth that the certificate verify callback receives is now numbered
Paul Bakkerf02c5642012-11-13 10:25:21 +00001930 bottom-up (Peer cert depth is 0)
1931
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01001932Bugfixes
1933 * Fixes for MSVC6
Paul Bakker9daf0d02012-11-13 12:13:27 +00001934 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakker7a2538e2012-11-02 10:59:36 +00001935 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
Paul Bakkerc9c5df92012-10-31 13:55:27 +00001936 Pégourié-Gonnard)
Paul Bakkerfab5c822012-02-06 16:45:10 +00001937 * Fixed possible segfault in mpi_shift_r() (found by Manuel
1938 Pégourié-Gonnard)
1939 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
1940
Paul Bakkera8cd2392012-02-11 16:09:32 +00001941= Version 1.2.0 released 2012-10-31
1942Features
1943 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
Paul Bakkerbdb912d2012-02-13 23:11:30 +00001944 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
1945 default!
1946 * Added support for wildcard certificates
1947 * Added support for multi-domain certificates through the X509 Subject
Paul Bakker89e80c92012-03-20 13:50:09 +00001948 Alternative Name extension
Paul Bakker48916f92012-09-16 19:57:18 +00001949 * Added preliminary ASN.1 buffer writing support
Paul Bakkerca4ab492012-04-18 14:23:57 +00001950 * Added preliminary X509 Certificate Request writing support
Paul Bakker01cc3942012-05-08 08:36:15 +00001951 * Added key_app_writer example application
Paul Bakker05ef8352012-05-08 09:17:57 +00001952 * Added cert_req example application
Paul Bakkere6ee41f2012-05-19 08:43:48 +00001953 * Added base Galois Counter Mode (GCM) for AES
Paul Bakkerc9c5df92012-10-31 13:55:27 +00001954 * Added TLS 1.2 support (RFC 5246)
Paul Bakker8d914582012-06-04 12:46:42 +00001955 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00001956 * Added commandline error code convertor (util/strerror)
Paul Bakker2770fbd2012-07-03 13:30:23 +00001957 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakker6132d0a2012-07-04 17:10:40 +00001958 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerf518b162012-08-23 13:03:18 +00001959 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker48916f92012-09-16 19:57:18 +00001960 * Added X509 CA Path support
Paul Bakker29b64762012-09-25 09:36:44 +00001961 * Added Thumb assembly optimizations
Paul Bakker0a597072012-09-25 21:55:46 +00001962 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker5701cdc2012-09-27 21:49:42 +00001963 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakker1d29fb52012-09-28 13:28:45 +00001964 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakkerfab5c822012-02-06 16:45:10 +00001965 * Added Secure Renegotiation (RFC 5746)
Paul Bakker1504af52012-02-11 16:17:43 +00001966 * Added predefined DHM groups from RFC 5114
1967 * Added simple SSL session cache implementation
Paul Bakker048d04e2012-02-12 17:31:04 +00001968 * Added ServerName extension parsing (SNI) at server side
Paul Bakker6b906e52012-05-08 12:01:43 +00001969 * Added option to add minimum accepted SSL/TLS protocol version
1970
Paul Bakker186751d2012-05-08 13:16:14 +00001971Changes
Paul Bakker4d2c1242012-05-10 14:12:46 +00001972 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker5b377842012-05-16 07:57:36 +00001973 * AES code only check for Padlock once
Paul Bakker6132d0a2012-07-04 17:10:40 +00001974 * Fixed const-correctness mpi_get_bit()
1975 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakkerec636f32012-09-09 19:17:02 +00001976 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker0a597072012-09-25 21:55:46 +00001977 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakkereb2c6582012-09-27 19:15:01 +00001978 to not match CN if subjectAltName extension is present (Closes ticket #56)
1979 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
Paul Bakker915275b2012-09-28 07:10:55 +00001980 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakker5c2364c2012-10-01 14:41:15 +00001981 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker645ce3a2012-10-31 12:32:41 +00001982 * Revamped session resumption handling
Paul Bakker1504af52012-02-11 16:17:43 +00001983 * Generalized external private key implementation handling (like PKCS#11)
Paul Bakker37824582012-03-22 14:10:22 +00001984 in SSL/TLS
Paul Bakker7beceb22012-03-22 14:19:49 +00001985 * Revamped x509_verify() and the SSL f_vrfy callback implementations
1986 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker430ffbe2012-05-01 08:14:20 +00001987 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker5b377842012-05-16 07:57:36 +00001988
Paul Bakkerf6198c12012-05-16 08:02:29 +00001989Bugfix
1990 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
Paul Bakkere6ee41f2012-05-19 08:43:48 +00001991 Hui Dong)
1992 * Fixed potential heap corruption in x509_name allocation
Paul Bakkercefb3962012-06-27 11:51:09 +00001993 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakker535e97d2012-08-23 10:49:55 +00001994 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00001995 #52)
Paul Bakker995a2152012-09-25 08:19:56 +00001996 * Handle encryption with private key and decryption with public key as per
Paul Bakkerb00ca422012-09-25 12:10:00 +00001997 RFC 2313
Paul Bakker4f024b72012-10-30 07:29:57 +00001998 * Handle empty certificate subject names
Paul Bakker37824582012-03-22 14:10:22 +00001999 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakker452d5322012-04-05 12:07:34 +00002000 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker3c16db92012-07-05 13:58:08 +00002001 with carry rollover (found by Ruslan Yushchenko)
2002 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker452d5322012-04-05 12:07:34 +00002003 * Fixed MPI assembly for SPARC64 platform
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002004
2005Security
2006 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2007 Vanderbeken)
2008
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002009= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002010Bugfix
2011 * Fixed potential memory leak when failing to resume a session
2012 * Fixed potential file descriptor leaks
2013
2014Security
2015 * Potential buffer-overflow for ssl_read_record() (independently found by
2016 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
2017 * Potential negative value misinterpretation in load_file()
2018 * Potential heap buffer overflow on large hostname setting
2019
Paul Bakker248fff52013-06-24 19:08:50 +02002020= Version 1.1.7 released on 2013-06-19
2021Changes
2022 * HAVEGE random generator disabled by default
2023
2024Bugfix
2025 * x509parse_crt() now better handles PEM error situations
2026 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2027 instead of the x509parse_crt() wrapper that can also parse PEM
2028 certificates
2029 * Fixed values for 2-key Triple DES in cipher layer
2030 * ssl_write_certificate_request() can handle empty ca_chain
2031
2032Security
2033 * A possible DoS during the SSL Handshake, due to faulty parsing of
2034 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2035
2036= Version 1.1.6 released on 2013-03-11
2037Bugfix
2038 * Fixed net_bind() for specified IP addresses on little endian systems
2039
2040Changes
2041 * Allow enabling of dummy error_strerror() to support some use-cases
2042 * Debug messages about padding errors during SSL message decryption are
2043 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
2044
2045Security
2046 * Removed timing differences during SSL message decryption in
2047 ssl_decrypt_buf()
2048 * Removed timing differences due to bad padding from
2049 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2050 operations
2051
Paul Bakker9d2bb652013-01-25 16:07:49 +01002052= Version 1.1.5 released on 2013-01-16
2053Bugfix
2054 * Fixed MPI assembly for SPARC64 platform
2055 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
2056 * mpi_add_abs() now correctly handles adding short numbers to long numbers
2057 with carry rollover
2058 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
2059 * Prevent reading over buffer boundaries on X509 certificate parsing
2060 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2061 #52)
2062 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2063 Pégourié-Gonnard)
2064 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2065 Pégourié-Gonnard)
2066 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2067 * Memory leak when using RSA_PKCS_V21 operations fixed
2068 * Handle encryption with private key and decryption with public key as per
2069 RFC 2313
2070 * Fixes for MSVC6
2071
2072Security
2073 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2074 Vanderbeken)
2075
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002076= Version 1.1.4 released on 2012-05-31
2077Bugfix
2078 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2079 * Fixed potential heap corruption in x509_name allocation
2080 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2081
Paul Bakkerfad38932012-05-08 09:04:04 +00002082= Version 1.1.3 released on 2012-04-29
2083Bugfix
2084 * Fixed random MPI generation to not generate more size than requested.
2085
2086= Version 1.1.2 released on 2012-04-26
2087Bugfix
2088 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2089 Hui Dong)
2090
2091Security
2092 * Fixed potential memory corruption on miscrafted client messages (found by
2093 Frama-C team at CEA LIST)
2094 * Fixed generation of DHM parameters to correct length (found by Ruslan
2095 Yushchenko)
2096
Paul Bakker99955bf2012-01-23 09:31:41 +00002097= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002098Bugfix
2099 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2100 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002101 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002102 * Fixed multiple compiler warnings for VS6 and armcc
2103 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002104
Paul Bakker08a50882011-12-22 09:43:57 +00002105= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002106Features
2107 * Added ssl_session_reset() to allow better multi-connection pools of
2108 SSL contexts without needing to set all non-connection-specific
2109 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002110 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2111 supported version to a server to help buggy server implementations.
2112 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002113 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2114 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002115 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002116 * Added a generic entropy accumulator that provides support for adding
2117 custom entropy sources and added some generic and platform dependent
2118 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002119
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002120Changes
2121 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002122 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2123 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002124 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002125 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002126 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002127 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2128 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002129 * Changed the defined key-length of DES ciphers in cipher.h to include the
2130 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002131 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002132 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002133 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2134 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002135 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2136 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002137 * Changed the used random function pointer to more flexible format. Renamed
2138 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002139 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002140 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002141 * Added permissive certificate parsing to x509parse_crt() and
2142 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002143 encountering a parse-error. Beware that the meaning of return values has
2144 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002145 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002146
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002147Bugfix
2148 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2149 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002150 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2151 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002152 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2153 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002154 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2155 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002156 * If certificate serial is longer than 32 octets, serial number is now
2157 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002158 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002159 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002160 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002161 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002162
Paul Bakker968bc982011-07-27 17:03:00 +00002163= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002164Features
2165 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002166 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002167
Paul Bakker42e59812011-06-09 15:55:41 +00002168Changes
2169 * The generic cipher and message digest layer now have normal error
2170 codes instead of integers
2171
Paul Bakker887bd502011-06-08 13:10:54 +00002172Bugfix
2173 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2174 #18)
2175
Paul Bakker828acb22011-05-27 09:25:42 +00002176= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002177Features
2178 * Added additional Cipher Block Modes to symmetric ciphers
2179 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002180 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002181 * Functions requiring File System functions can now be disabled
2182 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002183 * A error_strerror function() has been added to translate between
2184 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002185 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2186 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002187 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002188
Paul Bakker23986e52011-04-24 08:57:21 +00002189Changes
2190 * Major argument / variable rewrite. Introduced use of size_t
2191 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002192 better unsigned / signed use. Renamed internal bigint types
2193 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002194 * mpi_init() and mpi_free() now only accept a single MPI
2195 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002196 * The error codes have been remapped and combining error codes
2197 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002198 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002199 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2200 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002201 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2202 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2203 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2204 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002205 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2206 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002207 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002208
Paul Bakker3efa5752011-04-01 12:23:26 +00002209= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002210Features
2211 * Added support for PKCS#1 v2.1 encoding and thus support
2212 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002213 * Reading of Public Key files incorporated into default x509
2214 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002215 * Added mpi_fill_random() for centralized filling of big numbers
2216 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002217
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002218Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002219 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002220 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002221 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002222 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002223 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002224
2225Bugfix
2226 * Debug output of MPI's now the same independent of underlying
2227 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002228 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002229 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2230 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002231 * Fixed proper handling of RSASSA-PSS verification with variable
2232 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002233
Paul Bakker345a6fe2011-02-28 21:20:02 +00002234= Version 0.99-pre3 released on 2011-02-28
2235This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002236Features
2237 * Parsing PEM private keys encrypted with DES and AES
2238 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002239 * Added crl_app program to allow easy reading and
2240 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00002241
2242Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002243 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00002244 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01002245 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00002246
Paul Bakker400ff6f2011-02-20 10:40:16 +00002247Bugfixes
2248 * Corrected parsing of UTCTime dates before 1990 and
2249 after 1950
2250 * Support more exotic OID's when parsing certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002251 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002252 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002253 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002254 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002255 * Do not bail out if no client certificate specified. Try
2256 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01002257 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002258
Paul Bakker345a6fe2011-02-28 21:20:02 +00002259Security fixes
2260 * Fixed a possible Man-in-the-Middle attack on the
2261 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01002262 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00002263
Paul Bakker9fc46592011-01-30 16:59:02 +00002264= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00002265Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00002266Note: Most of these features have been donated by Fox-IT
2267 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00002268 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00002269 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00002270 certificate fields, including Key Usage
2271 * Improved certificate verification and verification
2272 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00002273 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00002274 * Improvements to support integration in other
2275 applications:
2276 + Added generic message digest and cipher wrapper
2277 + Improved information about current capabilities,
2278 status, objects and configuration
2279 + Added verification callback on certificate chain
2280 verification to allow external blacklisting
Paul Bakker20a78082011-01-21 09:32:12 +00002281 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00002282 * Added support for PKCS#11 through the use of the
2283 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00002284
Paul Bakkerb6194992011-01-16 21:40:22 +00002285Changes
2286 * x509parse_time_expired() checks time in addition to
2287 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00002288 * The ciphers member of ssl_context and the cipher member
2289 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01002290 ciphersuite respectively. This clarifies the difference
2291 with the generic cipher layer and is better naming
2292 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00002293
Paul Bakker99ed6782011-01-05 14:48:42 +00002294= Version 0.14.0 released on 2010-08-16
2295Features
2296 * Added support for SSL_EDH_RSA_AES_128_SHA and
2297 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
2298 * Added compile-time and run-time version information
2299 * Expanded ssl_client2 arguments for more flexibility
2300 * Added support for TLS v1.1
2301
2302Changes
2303 * Made Makefile cleaner
2304 * Removed dependency on rand() in rsa_pkcs1_encrypt().
2305 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01002306 changed the prototype of rsa_pkcs1_encrypt(),
2307 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00002308 * Some SSL defines were renamed in order to avoid
2309 future confusion
2310
2311Bug fixes
2312 * Fixed CMake out of source build for tests (found by
2313 kkert)
2314 * rsa_check_private() now supports PKCS1v2 keys as well
2315 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
2316 generator
2317
2318= Version 0.13.1 released on 2010-03-24
2319Bug fixes
2320 * Fixed Makefile in library that was mistakenly merged
2321 * Added missing const string fixes
2322
2323= Version 0.13.0 released on 2010-03-21
2324Features
2325 * Added option parsing for host and port selection to
2326 ssl_client2
2327 * Added support for GeneralizedTime in X509 parsing
2328 * Added cert_app program to allow easy reading and
2329 printing of X509 certificates from file or SSL
2330 connection.
2331
2332Changes
2333 * Added const correctness for main code base
2334 * X509 signature algorithm determination is now
2335 in a function to allow easy future expansion
2336 * Changed symmetric cipher functions to
2337 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01002338 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00002339 * Added reset function for HMAC context as speed-up
2340 for specific use-cases
2341
2342Bug fixes
2343 * Fixed bug resulting in failure to send the last
2344 certificate in the chain in ssl_write_certificate() and
2345 ssl_write_certificate_request() (found by fatbob)
2346 * Added small fixes for compiler warnings on a Mac
2347 (found by Frank de Brabander)
2348 * Fixed algorithmic bug in mpi_is_prime() (found by
2349 Smbat Tonoyan)
2350
2351= Version 0.12.1 released on 2009-10-04
2352Changes
2353 * Coverage test definitions now support 'depends_on'
2354 tagging system.
2355 * Tests requiring specific hashing algorithms now honor
2356 the defines.
2357
2358Bug fixes
2359 * Changed typo in #ifdef in x509parse.c (found
2360 by Eduardo)
2361
2362= Version 0.12.0 released on 2009-07-28
2363Features
2364 * Added CMake makefiles as alternative to regular Makefiles.
2365 * Added preliminary Code Coverage tests for AES, ARC4,
2366 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
2367 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
2368 and X509parse.
2369
2370Changes
2371 * Error codes are not (necessarily) negative. Keep
2372 this is mind when checking for errors.
2373 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
2374 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
2375 * Changed interface for AES and Camellia setkey functions
2376 to indicate invalid key lengths.
2377
2378Bug fixes
2379 * Fixed include location of endian.h on FreeBSD (found by
2380 Gabriel)
2381 * Fixed include location of endian.h and name clash on
2382 Apples (found by Martin van Hensbergen)
2383 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
2384 required HMAC ipad and opad variables are not cleared.
2385 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01002386 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00002387 POLARSSL_HAVE_LONGLONG not defined (found by Giles
2388 Bathgate).
2389 * Fixed incorrect handling of negative strings in
2390 mpi_read_string() (found by code coverage tests).
2391 * Fixed segfault on handling empty rsa_context in
2392 rsa_check_pubkey() and rsa_check_privkey() (found by
2393 code coverage tests).
2394 * Fixed incorrect handling of one single negative input
2395 value in mpi_add_abs() (found by code coverage tests).
2396 * Fixed incorrect handling of negative first input
2397 value in mpi_sub_abs() (found by code coverage tests).
2398 * Fixed incorrect handling of negative first input
2399 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
2400 change also affects mpi_write_string() (found by code
2401 coverage tests).
2402 * Corrected is_prime() results for 0, 1 and 2 (found by
2403 code coverage tests).
2404 * Fixed Camellia and XTEA for 64-bit Windows systems.
2405
2406= Version 0.11.1 released on 2009-05-17
2407 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
2408 SHA-512 in rsa_pkcs1_sign()
2409
2410= Version 0.11.0 released on 2009-05-03
2411 * Fixed a bug in mpi_gcd() so that it also works when both
2412 input numbers are even and added testcases to check
2413 (found by Pierre Habouzit).
2414 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
2415 one way hash functions with the PKCS#1 v1.5 signing and
2416 verification.
2417 * Fixed minor bug regarding mpi_gcd located within the
2418 POLARSSL_GENPRIME block.
2419 * Fixed minor memory leak in x509parse_crt() and added better
2420 handling of 'full' certificate chains (found by Mathias
2421 Olsson).
2422 * Centralized file opening and reading for x509 files into
2423 load_file()
2424 * Made definition of net_htons() endian-clean for big endian
2425 systems (Found by Gernot).
2426 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01002427 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00002428 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
2429 responsible for crashes and unwanted behaviour.
2430 * Added support for Certificate Revocation List (CRL) parsing.
2431 * Added support for CRL revocation to x509parse_verify() and
2432 SSL/TLS code.
2433 * Fixed compatibility of XTEA and Camellia on a 64-bit system
2434 (found by Felix von Leitner).
2435
2436= Version 0.10.0 released on 2009-01-12
2437 * Migrated XySSL to PolarSSL
2438 * Added XTEA symmetric cipher
2439 * Added Camellia symmetric cipher
2440 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
2441 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
2442 * Fixed dangerous bug that can cause a heap overflow in
2443 rsa_pkcs1_decrypt (found by Christophe Devine)
2444
2445================================================================
2446XySSL ChangeLog
2447
2448= Version 0.9 released on 2008-03-16
2449
2450 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
2451 * Enabled support for large files by default in aescrypt2.c
2452 * Preliminary openssl wrapper contributed by David Barrett
2453 * Fixed a bug in ssl_write() that caused the same payload to
2454 be sent twice in non-blocking mode when send returns EAGAIN
2455 * Fixed ssl_parse_client_hello(): session id and challenge must
2456 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
2457 * Added user-defined callback debug function (Krystian Kolodziej)
2458 * Before freeing a certificate, properly zero out all cert. data
2459 * Fixed the "mode" parameter so that encryption/decryption are
2460 not swapped on PadLock; also fixed compilation on older versions
2461 of gcc (bug reported by David Barrett)
2462 * Correctly handle the case in padlock_xcryptcbc() when input or
2463 ouput data is non-aligned by falling back to the software
2464 implementation, as VIA Nehemiah cannot handle non-aligned buffers
2465 * Fixed a memory leak in x509parse_crt() which was reported by Greg
2466 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
2467 Matthew Page who reported several bugs
2468 * Fixed x509_get_ext() to accept some rare certificates which have
2469 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
2470 * Added support on the client side for the TLS "hostname" extension
2471 (patch contributed by David Patino)
2472 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
2473 string is passed as the CN (bug reported by spoofy)
2474 * Added an option to enable/disable the BN assembly code
2475 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
2476 * Disabled obsolete hash functions by default (MD2, MD4); updated
2477 selftest and benchmark to not test ciphers that have been disabled
2478 * Updated x509parse_cert_info() to correctly display byte 0 of the
2479 serial number, setup correct server port in the ssl client example
2480 * Fixed a critical denial-of-service with X.509 cert. verification:
2481 peer may cause xyssl to loop indefinitely by sending a certificate
2482 for which the RSA signature check fails (bug reported by Benoit)
2483 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
2484 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
2485 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
2486 * Modified ssl_parse_client_key_exchange() to protect against
2487 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
2488 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
2489 * Updated rsa_gen_key() so that ctx->N is always nbits in size
2490 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
2491 David Barrett and Dusan Semen
2492
2493= Version 0.8 released on 2007-10-20
2494
2495 * Modified the HMAC functions to handle keys larger
2496 than 64 bytes, thanks to Stephane Desneux and gary ng
2497 * Fixed ssl_read_record() to properly update the handshake
2498 message digests, which fixes IE6/IE7 client authentication
2499 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
2500 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
2501 * Added user-defined callbacks for handling I/O and sessions
2502 * Added lots of debugging output in the SSL/TLS functions
2503 * Added preliminary X.509 cert. writing by Pascal Vizeli
2504 * Added preliminary support for the VIA PadLock routines
2505 * Added AES-CFB mode of operation, contributed by chmike
2506 * Added an SSL/TLS stress testing program (ssl_test.c)
2507 * Updated the RSA PKCS#1 code to allow choosing between
2508 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
2509 * Updated ssl_read() to skip 0-length records from OpenSSL
2510 * Fixed the make install target to comply with *BSD make
2511 * Fixed a bug in mpi_read_binary() on 64-bit platforms
2512 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
2513 * Fixed a long standing memory leak in mpi_is_prime()
2514 * Replaced realloc with malloc in mpi_grow(), and set
2515 the sign of zero as positive in mpi_init() (reported
2516 by Jonathan M. McCune)
2517
2518= Version 0.7 released on 2007-07-07
2519
2520 * Added support for the MicroBlaze soft-core processor
2521 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
2522 connections from being established with non-blocking I/O
2523 * Fixed a couple bugs in the VS6 and UNIX Makefiles
2524 * Fixed the "PIC register ebx clobbered in asm" bug
2525 * Added HMAC starts/update/finish support functions
2526 * Added the SHA-224, SHA-384 and SHA-512 hash functions
2527 * Fixed the net_set_*block routines, thanks to Andreas
2528 * Added a few demonstration programs: md5sum, sha1sum,
2529 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
2530 * Added new bignum import and export helper functions
2531 * Rewrote README.txt in program/ssl/ca to better explain
2532 how to create a test PKI
2533
2534= Version 0.6 released on 2007-04-01
2535
2536 * Ciphers used in SSL/TLS can now be disabled at compile
2537 time, to reduce the memory footprint on embedded systems
2538 * Added multiply assembly code for the TriCore and modified
2539 havege_struct for this processor, thanks to David Patiño
2540 * Added multiply assembly code for 64-bit PowerPCs,
2541 thanks to Peking University and the OSU Open Source Lab
2542 * Added experimental support of Quantum Cryptography
2543 * Added support for autoconf, contributed by Arnaud Cornet
2544 * Fixed "long long" compilation issues on IA-64 and PPC64
2545 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
2546 was not being correctly defined on ARM and MIPS
2547
2548= Version 0.5 released on 2007-03-01
2549
2550 * Added multiply assembly code for SPARC and Alpha
2551 * Added (beta) support for non-blocking I/O operations
2552 * Implemented session resuming and client authentication
2553 * Fixed some portability issues on WinCE, MINIX 3, Plan9
2554 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
2555 * Improved the performance of the EDH key exchange
2556 * Fixed a bug that caused valid packets with a payload
2557 size of 16384 bytes to be rejected
2558
2559= Version 0.4 released on 2007-02-01
2560
2561 * Added support for Ephemeral Diffie-Hellman key exchange
2562 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
2563 * Various improvement to the modular exponentiation code
2564 * Rewrote the headers to generate the API docs with doxygen
2565 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
2566 generated) and in ssl_parse_client_hello (max. client
2567 version was not properly set), thanks to Didier Rebeix
2568 * Fixed another bug in ssl_parse_client_hello: clients with
2569 cipherlists larger than 96 bytes were incorrectly rejected
2570 * Fixed a couple memory leak in x509_read.c
2571
2572= Version 0.3 released on 2007-01-01
2573
2574 * Added server-side SSLv3 and TLSv1.0 support
2575 * Multiple fixes to enhance the compatibility with g++,
2576 thanks to Xosé Antón Otero Ferreira
2577 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01002578 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00002579 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
2580 * Updated timing.c for improved compatibility with i386
2581 and 486 processors, thanks to Arnaud Cornet
2582
2583= Version 0.2 released on 2006-12-01
2584
2585 * Updated timing.c to support ARM and MIPS arch
2586 * Updated the MPI code to support 8086 on MSVC 1.5
2587 * Added the copyright notice at the top of havege.h
2588 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
2589 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
2590 * Fixed a bug reported by Torsten Lauter in ssl_read_record
2591 * Fixed a bug in rsa_check_privkey that would wrongly cause
2592 valid RSA keys to be dismissed (thanks to oldwolf)
2593 * Fixed a bug in mpi_is_prime that caused some primes to fail
2594 the Miller-Rabin primality test
2595
2596 I'd also like to thank Younès Hafri for the CRUX linux port,
2597 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
2598 who maintains the Debian package :-)
2599
2600= Version 0.1 released on 2006-11-01