blob: efa7ec28ee5e51a9938b50f84c382e1c475c5d36 [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 Peskine27b07542018-02-14 14:07:48 +01003= mbed TLS 2.7.x branch released 2018-xx-xx
4
5Bugfix
6 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
7 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +01008 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +02009 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
10 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskine200b24f2018-02-20 16:40:11 +010011 In the context of SSL, this resulted in handshake failure. #1351
Jaeden Ameroa0d60a42018-02-21 13:32:39 +000012 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskine27b07542018-02-14 14:07:48 +010013
14Changes
15 * Fix tag lengths and value ranges in the documentation of CCM encryption.
16 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +010017 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskine27b07542018-02-14 14:07:48 +010018
Simon Butcher55fc4e02018-02-05 01:09:13 +000019= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +010020
Gilles Peskine28a0c722017-10-17 19:01:38 +020021Security
Simon Butcher55fc4e02018-02-05 01:09:13 +000022 * Fix a heap corruption issue in the implementation of the truncated HMAC
23 extension. When the truncated HMAC extension is enabled and CBC is used,
24 sending a malicious application packet could be used to selectively corrupt
25 6 bytes on the peer's heap, which could potentially lead to crash or remote
26 code execution. The issue could be triggered remotely from either side in
27 both TLS and DTLS. CVE-2018-0488
28 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
29 for the key size, which could potentially lead to crash or remote code
30 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
31 Qualcomm Technologies Inc. CVE-2018-0487
32 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
33 zeros.
34 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
35 64 KiB to the address of the SSL buffer and causing a wrap around.
36 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +010037 default enabled) maximum fragment length extension is disabled in the
38 config and the application data buffer passed to mbedtls_ssl_write
39 is larger than the internal message buffer (16384 bytes by default), the
40 latter overflows. The exploitability of this issue depends on whether the
41 application layer can be forced into sending such large packets. The issue
42 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +000043 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
44 Fixes #707.
45 * Add a provision to prevent compiler optimizations breaking the time
46 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +010047 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +010048 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +030049 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
50 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +010051 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
52 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +000053 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
54 data. Previously, trailing zero bytes were detected and omitted for the
55 sake of saving memory, but potentially leading to slight timing
56 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +010057 * Wipe stack buffer temporarily holding EC private exponent
58 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +000059 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +010060 (server-side). Could result in application crash, but only if an ALPN
61 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +010062 * Change default choice of DHE parameters from untrustworthy RFC 5114
63 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
64 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +020065
Gilles Peskineb04e2c32017-09-29 15:45:12 +020066Features
67 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +010068 * The selftest program can execute a subset of the tests based on command
69 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +020070 * New unit tests for timing. Improve the self-test to be more robust
71 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +010072 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +000073 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +010074 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +010075 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +030076 * Add support for alternative implementations for ECDSA, controlled by new
77 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
78 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +030079 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +030080 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +030081 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +000082 * Add support for alternative implementation of ECDH, controlled by the
83 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +030084 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +030085 The following functions from the ECDH module can be replaced
86 with an alternative implementation:
87 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +000088 * Add support for alternative implementation of ECJPAKE, controlled by
89 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +000090 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +020091
Hanno Beckera47023e2017-12-22 17:08:03 +000092API Changes
93 * Extend RSA interface by multiple functions allowing structure-
94 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +000095 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +000096 up RSA contexts from partial key material and having them completed to the
97 needs of the implementation automatically. This allows to setup private RSA
98 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
99 purpose or CRT and/or blinding.
100 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
101 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100102 * The following functions in the message digest modules (MD2, MD4, MD5,
103 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
104 The new functions change the return type from void to int to allow
105 returning error codes when using MBEDTLS_<MODULE>_ALT.
106 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
107 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
108 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100109 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200110
Ron Eldor73a38172017-10-03 15:58:26 +0300111New deprecations
112 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000113 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100114 * Direct manipulation of structure fields of RSA contexts is deprecated.
115 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000116 * Deprecate usage of message digest functions that return void
117 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
118 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
119 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
120 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100121 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
122 parameters from RFC 3526 or the newly added parameters from RFC 7919.
123 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
124 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
125 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000126 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
127 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100128 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100129
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100130Bugfix
131 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
132 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100133 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
134 Found by projectgus and jethrogb, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100135 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300136 * Parse signature algorithm extension when renegotiating. Previously,
137 renegotiated handshakes would only accept signatures using SHA-1
138 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000139 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
140 dates on leap years with 100 and 400 intervals are handled correctly. Found
141 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200142 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
143 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100144 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
145 Found independently by Florian in the mbed TLS forum and by Mishamax.
146 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100147 * Fix variable used before assignment compilation warnings with IAR
148 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000149 * Fix unchecked return codes from AES, DES and 3DES functions in
150 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
151 If a call to one of the functions of the cryptographic primitive modules
152 failed, the error may not be noticed by the function
153 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
154 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100155 * Include configuration file in md.h, to fix compilation warnings.
156 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100157 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
158 writing routines that prevented these functions to work with alternative
159 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100160 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
161 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100162 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000163 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100164 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000165 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100166 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000167 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000168 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100169 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100170 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100171 * Add size-checks for record and handshake message content, securing
172 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300173 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
174 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +0100175 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000176 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100177 * Fix possible memory leaks in mbedtls_gcm_self_test().
178 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +0000179 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
180 RSA test suite where the failure of CTR DRBG initialization lead to
181 freeing an RSA context and several MPI's without proper initialization
182 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +0100183 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +0100184 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
185 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000186 * Fix an issue in the cipher decryption with the mode
187 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
188 Note, this padding mode is not used by the TLS protocol. Found and fixed by
189 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +0100190 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
191 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
192 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
193 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +0100194 structure. Do not assume that zeroizing a context is a correct way to
195 reset it. Found independently by ccli8 on Github.
196 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000197 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
198 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +0100199
200Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +0000201 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +0100202 and the message digest. Further, allow enabling/disabling of authority
203 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +0000204 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
205 particular, don't require P,Q if neither CRT nor blinding are
206 used. Reported and fix proposed independently by satur9nine and sliai
207 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100208 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +0100209 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
210 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +0100211 * Update all internal usage of deprecated message digest functions to the
212 new ones with return codes. In particular, this modifies the
213 mbedtls_md_info_t structure. Propagate errors from these functions
214 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +0000215 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +0100216 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
217 modules where the software implementation can be replaced by a hardware
218 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +0100219 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
220 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100221
Simon Butcher72ea31b2017-08-10 11:51:16 +0100222= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +0200223
Simon Butcherb060cc22017-07-28 01:04:34 +0100224Security
Simon Butcher01971d02017-08-10 10:48:01 +0100225 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherb060cc22017-07-28 01:04:34 +0100226 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
227 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +0100228 (default: 8) intermediates, even when it was not trusted. This could be
229 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +0100230 (the default), the handshake was correctly aborted).
231 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +0100232 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
233 Found by Laurent Simon.
Simon Butcherb060cc22017-07-28 01:04:34 +0100234
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100235Features
236 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia052ac862017-07-12 11:27:05 +0100237 and the context struct mbedtls_platform_context to perform
238 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia586d3772017-07-18 10:24:26 +0100239 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +0100240 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +0100241 some embedded environments to provide a means of initialising underlying
242 cryptographic acceleration hardware.
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100243
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200244API Changes
245 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
246 API consistent with mbed TLS 2.5.0. Specifically removed the inline
247 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +0100248 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
249 by James Cowgill. #978
Simon Butcherb060cc22017-07-28 01:04:34 +0100250 * Certificate verification functions now set flags to -1 in case the full
251 chain was not verified due to an internal error (including in the verify
252 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +0100253 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherb060cc22017-07-28 01:04:34 +0100254 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +0100255 a fatal error in the verify callback.
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200256
Ron Eldor5a21fd62016-12-16 16:15:56 +0200257Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +0100258 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
259 Reported by roberto. #716
260 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor8ab05952017-01-09 19:27:59 +0200261 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +0100262 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +0100263 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
264 in the case of an error. Found by redplait. #590
Ron Eldor7269fee2017-01-12 14:50:50 +0200265 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100266 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciaaa27dfe2017-05-04 11:05:55 +0100267 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
268 compilation when using ARM Compiler 6.
Simon Butcher00d3cc62017-07-26 17:25:55 +0100269 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100270 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher00d3cc62017-07-26 17:25:55 +0100271 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
272 KNOX Security, Samsung Research America
Andres AG2e3ddfa2017-02-17 13:54:43 +0000273 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100274 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e3ddfa2017-02-17 13:54:43 +0000275 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
276 KNOX Security, Samsung Research America
Simon Butcher00d3cc62017-07-26 17:25:55 +0100277 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100278 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher00d3cc62017-07-26 17:25:55 +0100279 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +0100280 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +0100281 function mbedtls_time() instead. Found by wairua. #666
282 * Avoid shadowing of time and index functions through mbed TLS function
283 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +0200284
Janos Follathbfea4a72017-06-22 10:02:07 +0100285Changes
Janos Follath32529402017-06-22 10:02:07 +0100286 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +0100287 64-bit division. This is useful on embedded platforms where 64-bit division
288 created a dependency on external libraries. #708
Janos Follathbfea4a72017-06-22 10:02:07 +0100289 * Removed mutexes from ECP hardware accelerator code. Now all hardware
290 accelerator code in the library leaves concurrency handling to the
291 platform. Reported by Steven Cooreman. #863
Andres Amaya Garcia92fcfe22017-06-26 12:57:44 +0100292 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
293 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100294 * Added a test script that can be hooked into git that verifies commits
295 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +0100296 * Improve documentation of PKCS1 decryption functions.
Janos Follathbfea4a72017-06-22 10:02:07 +0100297
Simon Butcherf2a597f2017-06-20 23:08:10 +0100298= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +0100299
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200300Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +0100301 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
302 The issue could only happen client-side with renegotiation enabled.
303 Could result in DoS (application crash) or information leak
304 (if the application layer sent data read from mbedtls_ssl_read()
305 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +0200306 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
307 certificate verification. SHA-1 can be turned back on with a compile-time
308 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +0200309 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
310 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +0200311 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
312 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200313
Hanno Beckereccf60c2017-06-05 15:19:01 +0100314Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +0100315 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
316 valid C and they prevented the test from compiling in Visual Studio 2015
317 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +0100318 * Fix insufficient support for signature-hash-algorithm extension,
319 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +0100320 * Fix behaviour that hid the original cause of fatal alerts in some cases
321 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +0200322 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100323 * Fix SSLv3 renegotiation behaviour and stop processing data received from
324 peer after sending a fatal alert to refuse a renegotiation attempt.
325 Previous behaviour was to keep processing data even after the alert has
326 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +0100327 * Accept empty trusted CA chain in authentication mode
328 MBEDTLS_SSL_VERIFY_OPTIONAL.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100329 Found by jethrogb. #864
330 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
331 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
332 reflect bad EC curves within verification result.
333 * Fix bug that caused the modular inversion function to accept the invalid
334 modulus 1 and therefore to hang. Found by blaufish. #641.
335 * Fix incorrect sign computation in modular exponentiation when the base is
336 a negative MPI. Previously the result was always negative. Found by Guido
337 Vranken.
338 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
339 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +0200340
Gilles Peskine36091fe2017-05-03 16:55:03 +0200341Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +0100342 * Send fatal alerts in more cases. The previous behaviour was to skip
343 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +0000344 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +0100345 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +0000346 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +0200347
Simon Butcher9f770172017-05-15 15:13:59 +0100348= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100349
Janos Follath45182a02017-03-23 10:41:56 +0000350Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +0100351 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +0100352 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
353 Simon.
Janos Follath45182a02017-03-23 10:41:56 +0000354 * Add exponent blinding to RSA private operations as a countermeasure
355 against side-channel attacks like the cache attack described in
356 https://arxiv.org/abs/1702.08719v2.
357 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
358 Clémentine Maurice and Stefan Mangard.
359
Simon Butcher4775e832017-05-13 22:56:08 +0100360Features
Janos Follath5a1c0e72017-06-16 09:00:07 +0100361 * Add hardware acceleration support for the Elliptic Curve Point module.
362 This involved exposing parts of the internal interface to enable
363 replacing the core functions and adding and alternative, module level
364 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +0100365 * Add a new configuration option to 'mbedtls_ssl_config' to enable
366 suppressing the CA list in Certificate Request messages. The default
367 behaviour has not changed, namely every configured CAs name is included.
368
Andres AGf5bf7182017-03-03 14:09:56 +0000369API Changes
370 * The following functions in the AES module have been deprecated and replaced
371 by the functions shown below. The new functions change the return type from
372 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
373 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
374 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
375 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
376
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100377Bugfix
378 * Remove macros from compat-1.3.h that correspond to deleted items from most
379 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100380 * Fixed issue in the Threading module that prevented mutexes from
381 initialising. Found by sznaider. #667 #843
382 * Add checks in the PK module for the RSA functions on 64-bit systems.
383 The PK and RSA modules use different types for passing hash length and
384 without these checks the type cast could lead to data loss. Found by Guido
385 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100386
Simon Butcherb65c2be2017-03-10 18:50:44 +0000387= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +0100388
Janos Follath182013f2016-10-25 10:50:22 +0100389Security
Simon Butcherb65c2be2017-03-10 18:50:44 +0000390 * Add checks to prevent signature forgeries for very large messages while
391 using RSA through the PK module in 64-bit systems. The issue was caused by
392 some data loss when casting a size_t to an unsigned int value in the
393 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
394 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +0000395 * Fixed potential livelock during the parsing of a CRL in PEM format in
396 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
397 characters after the footer could result in the execution of an infinite
398 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
399 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +0100400 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
401 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +0000402 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +0000403 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
404 when verifying the validity of a key on secp224k1. This could be
405 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +0000406 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +0000407 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
408 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +0000409
Andres AG703990b2016-10-24 11:23:36 +0100410Bugfix
Andres AGd1650662016-12-09 17:26:23 +0000411 * Fix output certificate verification flags set by x509_crt_verify_top() when
412 traversing a chain of trusted CA. The issue would cause both flags,
413 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
414 set when the verification conditions are not met regardless of the cause.
415 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +0000416 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
417 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
418 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +0000419 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
420 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +0000421 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +0000422 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
423 would compare 64 bits of the record counter instead of 48 bits as indicated
424 in RFC 6347 Section 4.3.1. This could cause the execution of the
425 renegotiation routines at unexpected times when the protocol is DTLS. Found
426 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +0100427 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +0100428 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +0100429 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +0000430 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
431 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
432 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
433 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
434 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
435 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +0000436 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
437 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +0000438 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
439 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +0000440 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
441 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +0000442 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
443 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +0000444 * Fixed the templates used to generate project and solution files for Visual
445 Studio 2015 as well as the files themselves, to remove a build warning
446 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +0200447 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
448 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +0000449 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
450 number to write in hexadecimal is negative and requires an odd number of
451 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +0000452 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
453 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +0100454
Janos Follath4c006cd2016-12-13 14:14:03 +0000455= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +0000456
457Changes
458 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
459 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
460 Authentication – October 2016
461
Simon Butcher19dbd412016-10-16 19:35:49 +0100462= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +0300463
Andres AG60dbc932016-09-02 15:23:48 +0100464Security
Simon Butcheref8fa012016-10-16 00:44:08 +0100465 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
466 with RFC-5116 and could lead to session key recovery in very long TLS
467 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
468 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
469 https://eprint.iacr.org/2016/475.pdf
470 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +0100471 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +0100472 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +0100473 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +0100474
Simon Butchercf8c1f42016-09-02 21:29:39 +0300475Features
Simon Butcher21c54812016-10-05 14:17:37 +0100476 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
477 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300478 * Added hardware entropy selftest to verify that the hardware entropy source
479 is functioning correctly.
480 * Added a script to print build environment info for diagnostic use in test
481 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +0100482 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
483 configure the maximum length of a file path that can be buffered when
484 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +0100485 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +0100486 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +0100487 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
488 to configure the minimum number of bytes for entropy sources using the
489 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300490
491Bugfix
492 * Fix for platform time abstraction to avoid dependency issues where a build
493 may need time but not the standard C library abstraction, and added
494 configuration consistency checks to check_config.h
495 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +0100496 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
497 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +0300498 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
499 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +0300500 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
501 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +0100502 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +0100503 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +0100504 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +0100505 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +0100506 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +0100507 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +0100508 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
509 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
510 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +0100511 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
512 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +0100513 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +0100514 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +0100515 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +0100516 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +0100517 * Fix potential byte overread when verifying malformed SERVER_HELLO in
518 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +0100519 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +0100520 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +0100521 * Fix compatibility issue with Internet Explorer client authentication,
522 where the limited hash choices prevented the client from sending its
523 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +0100524 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300525
526Changes
527 * Extended test coverage of special cases, and added new timing test suite.
528 * Removed self-tests from the basic-built-test.sh script, and added all
529 missing self-tests to the test suites, to ensure self-tests are only
530 executed once.
531 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
532 * Added support for a Yotta specific configuration file -
533 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +0100534 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +0100535 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +0100536 * Renamed source file library/net.c to library/net_sockets.c to avoid
537 naming collision in projects which also have files with the common name
538 net.c. For consistency, the corresponding header file, net.h, is marked as
539 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +0100540 * Changed the strategy for X.509 certificate parsing and validation, to no
541 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +0300542
Simon Butcher46125fb2016-06-27 19:43:55 +0100543= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100544
Janos Follathcc4eba72016-02-10 16:25:55 +0000545Security
Janos Follathe43b81a2016-02-10 16:25:55 +0000546 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +0000547 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +0000548 * Fix potential integer overflow to buffer overflow in
549 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +0100550 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +0100551 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +0000552 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
553 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +0000554
Simon Butcher3fe6cd32016-04-26 19:51:29 +0100555Features
556 * Support for platform abstraction of the standard C library time()
557 function.
558
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100559Bugfix
560 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
561 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100562 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +0000563 * Fix potential build failures related to the 'apidoc' target, introduced
564 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +0100565 * Fix issue in Makefile that prevented building using armar. #386
Janos Follath4ae5c292016-02-10 11:27:43 +0000566 * Fix memory leak that occured only when ECJPAKE was enabled and ECDHE and
567 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +0000568 * Fix an issue that caused valid certificates to be rejected whenever an
569 expired or not yet valid certificate was parsed before a valid certificate
570 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +0100571 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +0000572 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +0100573 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +0000574 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
575 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +0100576 * Fix issue that caused a crash if invalid curves were passed to
577 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +0100578 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +0100579 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +0100580 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +0100581 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +0100582
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +0100583Changes
584 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
585 don't use the optimized assembly for bignum multiplication. This removes
586 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +0100587 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +0100588 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
589 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +0100590 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
591 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +0100592
593= mbed TLS 2.2.1 released 2016-01-05
594
595Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +0100596 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +0100597 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +0000598 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +0100599 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
600 SLOTH attack on TLS 1.2 server authentication (other attacks from the
601 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +0100602 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +0000603
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +0100604Bugfix
605 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
606 * Fix bug in certificate validation that caused valid chains to be rejected
607 when the first intermediate certificate has pathLenConstraint=0. Found by
608 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +0000609 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +0000610 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +0100611 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100612 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +0200613 datagram if a single record in a datagram is unexpected, instead only
614 drop the record and look at subsequent records (if any are present) in
615 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +0200616
617= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +0000618
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +0200619Security
620 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
621 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +0000622 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100623 * Fix potential heap corruption on Windows when
624 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
625 triggered remotely. Found by Guido Vranken, Intelworks.
626 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +0200627 Cannot be triggered remotely unless you create X.509 certificates based
628 on untrusted input or write keys of untrusted origin. Found by Guido
629 Vranken, Intelworks.
630 * The X509 max_pathlen constraint was not enforced on intermediate
631 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +0200632 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100633
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +0100634Features
635 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
636 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100637 * Added a key extraction callback to accees the master secret and key
638 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +0200639
640Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +0000641 * Self-signed certificates were not excluded from pathlen counting,
642 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +0200643 provided by Janos Follath. #319
644 * Fix build error with configurations where ECDHE-PSK is the only key
645 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +0000646 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +0200647 ECHD-ECDSA if the only key exchange. Multiple reports. #310
648 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +0200649 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +0900650 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
651 size/curve against the profile. Before that, there was no way to set a
652 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +0000653 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +0100654 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
655 Found by Kurt Danielson. #292
656 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +0100657 * Fix bug in ASN.1 encoding of booleans that caused generated CA
658 certificates to be rejected by some applications, including OS X
659 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +0100660
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +0100661Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +0100662 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
663 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +0100664
665= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +0100666
667Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +0200668 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
669 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +0100670 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +0200671 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +0100672 once in the same handhake and mbedtls_ssl_conf_psk() was used.
673 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
674 remotely.
675 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +0100676 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +0100677 Found by Guido Vranken, Intelworks. Not triggerable remotely.
678 * Fix potential buffer overflow in mbedtls_mpi_read_string().
679 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
680 of TLS, but might be in other uses. On 32 bit machines, requires reading a
681 string of close to or larger than 1GB to exploit; on 64 bit machines, would
682 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +0200683 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +0100684 on crafted PEM input data. Found and fix provided by Guido Vranken,
685 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +0200686 accept PEM data from an untrusted source.
687 * Fix possible heap buffer overflow in base64_encoded() when the input
688 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +0100689 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +0100690 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +0100691 the same mbedtls_ssl_config object and memory allocation fails. Found by
692 Guido Vranken, Intelworks. Cannot be forced remotely.
693 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +0100694 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +0100695 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +0100696 Found by Guido Vranken, Intelworks.
697
698Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +0100699 * Fix compile error in net.c with musl libc. Found and patch provided by
700 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +0100701 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +0100702
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +0200703Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +0200704 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
705 domain names are compliant with RFC 1035.
706 * Fixed paths for check_config.h in example config files. (Found by bachp)
707 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200708
709= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +0100710
711Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200712 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +0100713 signatures. (Found by Florian Weimer, Red Hat.)
714 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +0200715 * Fix possible client-side NULL pointer dereference (read) when the client
716 tries to continue the handshake after it failed (a misuse of the API).
717 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +0100718 afl-fuzz.)
719
720Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +0200721 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
722 * Fix off-by-one error in parsing Supported Point Format extension that
723 caused some handshakes to fail.
724
725Changes
726 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
727 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +0100728 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +0200729 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +0200730 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200731 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +0200732 detected and mbedtls_ssl_read() will return
733 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200734 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +0200735
736= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +0200737
738Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +0200739 * Added support for yotta as a build system.
740 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200741
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +0200742Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200743 * Fix segfault in the benchmark program when benchmarking DHM.
744 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +0200745 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +0200746 * Fix bug when parsing a ServerHello without extensions (found by David
747 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +0200748 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
749 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +0200750 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
751 installed (found by Rawi666).
752 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +0200753 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +0200754 (found by robotanarchy) (#232).
755 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +0200756 tests (found by robotanarchy) (#232).
757 * Fix missing -static-libgcc when building shared libraries for Windows
758 with make.
Simon Butcher52754592015-09-03 13:06:01 +0100759 * Fix link error when building shared libraries for Windows with make.
760 * Fix error when loading libmbedtls.so.
761 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
762 be always used (found by dcb314) (#235)
763 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
764 result trying to unlock an unlocked mutex on invalid input (found by
765 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +0200766 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +0200767 * Fix memory corruption on client with overlong PSK identity, around
768 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +0200769 Aleksandrs Saveljevs) (#238)
770 * Fix unused function warning when using MBEDTLS_MDx_ALT or
771 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +0200772 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
773
774Changes
Simon Butcher52754592015-09-03 13:06:01 +0100775 * The PEM parser now accepts a trailing space at end of lines (#226).
776 * It is now possible to #include a user-provided configuration file at the
777 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
778 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +0200779 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +0100780 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +0100781 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +0200782 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +0200783 Hugo Leisink) (#210).
784 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
785 length.
786
787= mbed TLS 2.0.0 released 2015-07-13
788
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +0200789Features
790 * Support for DTLS 1.0 and 1.2 (RFC 6347).
791 * Ability to override core functions from MDx, SHAx, AES and DES modules
792 with custom implementation (eg hardware accelerated), complementing the
793 ability to override the whole module.
794 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +0200795 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +0200796 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +0200797 which algorithms and key sizes (curves for ECDSA) are acceptable.
798 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200799 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +0100800 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200801 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +0100802
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +0200803API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +0200804 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
805 You now need to link to all of them if you use TLS for example.
806 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200807 Some names have been further changed to make them more consistent.
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +0200808 Migration helpers scripts/rename.pl and include/mbedlts/compat-1.3.h are
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +0200809 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +0200810 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +0200811 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +0200812 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +0200813 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +0200814 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
815 * The following _init() functions that could return errors have
Tillmann Karras588ad502015-09-25 04:27:22 +0200816 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +0200817 should generally be the first function called on this context after init:
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +0100818 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +0200819 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
820 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
821 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
822 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +0100823 Note that for mbedtls_ssl_setup(), you need to be done setting up the
824 ssl_config structure before calling it.
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +0200825 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
826 ssl_set_session() and ssl_set_client_transport_id(), plus
827 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
828 (see rename.pl and compat-1.3.h above) and their first argument's type
829 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +0200830 * ssl_set_bio() changed signature (contexts merged, order switched, one
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +0100831 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +0200832 * The following functions have been introduced and must be used in callback
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +0100833 implementations (SNI, PSK) instead of their *conf counterparts:
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +0200834 mbedtls_ssl_set_hs_own_cert()
835 mbedtls_ssl_set_hs_ca_chain()
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +0200836 mbedtls_ssl_set_hs_psk()
837 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +0200838 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +0100839 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +0200840 pointer, parameters reordered).
841 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
842 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +0100843 * The SSL debug callback gained two new arguments (file name, line number).
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +0200844 * Debug modes were removed.
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +0100845 * mbedtls_ssl_conf_truncated_hmac() now returns void.
846 * mbedtls_memory_buffer_alloc_init() now returns void.
847 * X.509 verification flags are now an uint32_t. Affect the signature of:
848 mbedtls_ssl_get_verify_result()
849 mbedtls_x509_ctr_verify_info()
850 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +0200851 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
852 * The following functions changed prototype to avoid an in-out length
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +0200853 parameter:
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +0200854 mbedtls_base64_encode()
855 mbedtls_base64_decode()
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +0200856 mbedtls_mpi_write_string()
857 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +0200858 * In the NET module, all "int" and "int *" arguments for file descriptors
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +0200859 changed type to "mbedtls_net_context *".
860 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +0100861 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
862 return void.
863 * ecdsa_write_signature() gained an addtional md_alg argument and
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +0100864 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +0200865 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
866 * Last argument of x509_crt_check_key_usage() and
867 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +0000868 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +0200869 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
870 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +0200871 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +0000872 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
873 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +0200874 length parameter to include the terminating null byte for PEM input.
875 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +0200876 * calloc() is now used instead of malloc() everywhere. API of platform
877 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +0200878 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200879 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
880 (support for renegotiation now needs explicit enabling in config.h).
881 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +0200882 in config.h
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +0200883 * net_connect() and net_bind() have a new 'proto' argument to choose
884 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +0200885 Their 'port' argument type is changed to a string.
886 * Some constness fixes
887
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +0200888Removals
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +0200889 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +0200890 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
891 mbedtls_ecp_muladd().
892 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
893 (use generic functions from md.h)
894 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
895 waiting function.
896 * Removed test DHM parameters from the test certs module.
897 * Removed the PBKDF2 module (use PKCS5).
898 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
899 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
900 * Removed openssl.h (very partial OpenSSL compatibility layer).
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +0100901 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
902 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
903 been removed (compiler is required to support 32-bit operations).
904 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +0200905 * Removed test program o_p_test, the script compat.sh does more.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +0100906 * Removed test program ssl_test, superseded by ssl-opt.sh.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +0200907 * Removed helper script active-config.pl
908
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +0200909New deprecations
910 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +0200911 argument (allowing memory savings if HMAC is not used)
912
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +0100913Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +0200914 * Renamed a few headers to include _internal in the name. Those headers are
915 not supposed to be included by users.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +0100916 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +0100917 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +0200918 * Changed cipher_base_t into an opaque structure.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +0100919 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
920 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +0000921 * Removed r and s from ecdsa_context
922 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +0100923
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +0200924Default behavior changes
925 * The default minimum TLS version is now TLS 1.0.
926 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +0100927 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +0200928 * Support for receiving SSLv2 ClientHello is now disabled by default at
929 compile time.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +0100930 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +0200931 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
932 enabled in the default configuration, this is only noticeable if using a
933 custom config.h
934 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
935 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
936 chain verification.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +0100937 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +0200938 * The following functions are now case-sensitive:
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +0200939 mbedtls_cipher_info_from_string()
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +0200940 mbedtls_ecp_curve_info_from_name()
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +0100941 mbedtls_md_info_from_string()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +0000942 mbedtls_ssl_ciphersuite_from_string()
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +0200943 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +0100944
945Requirement changes
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +0200946 * The minimum MSVC version required is now 2010 (better C99 support).
947 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
948 * Compiler is required to support C99 types such as long long and uint32_t.
949
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +0200950API changes from the 1.4 preview branch
951 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
952 new prototype, and mbedtls_ssl_set_read_timeout().
953 * The following functions now return void:
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +0200954 mbedtls_ssl_conf_transport()
955 mbedtls_ssl_conf_max_version()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +0100956 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +0100957 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
958 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
959 an example implementation, see mbedtls_timing_delay_context and
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +0200960 mbedtls_timing_set/get_delay().
961 * With UDP sockets, it is no longer necessary to call net_bind() again
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +0100962 after a successful net_accept().
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +0000963
964Changes
965 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +0200966 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +0100967 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
968 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +0200969
970= mbed TLS 1.3 branch
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +0000971
972Security
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +0200973 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
974 extendedKeyUsage on the leaf certificate was lost (results not accessible
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +0200975 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +0200976 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +0200977 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +0100978
979Features
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +0000980 * Improve ECC performance by using more efficient doubling formulas
981 (contributed by Peter Dettman).
982 * Add x509_crt_verify_info() to display certificate verification results.
983 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +0000984 (contributed by Daniel Kahn Gillmor).
985 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +0000986 * Add support for id-at-uniqueIdentifier in X.509 names.
987 * Add support for overriding snprintf() (except on Windows) and exit() in
988 the platform layer.
989 * Add an option to use macros instead of function pointers in the platform
990 layer (helps get rid of unwanted references).
991 * Improved Makefiles for Windows targets by fixing library targets and making
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +0200992 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +0100993 * The benchmark program also prints heap usage for public-key primitives
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +0200994 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +0100995 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +0000996 speed and RAM (heap only for now) usage.
997 * New script memory.sh helps measuring the ROM and RAM requirements of two
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +0100998 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +0100999 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001000 warnings on use of deprecated functions (with GCC and Clang only).
1001 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001002 errors on use of deprecated functions.
1003
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001004Bugfix
1005 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001006 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
1007 * Fix bug in entropy.c when THREADING_C is also enabled that caused
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001008 entropy_free() to crash (thanks to Rafał Przywara).
1009 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001010 once on the same context.
1011 * Fix bug in ssl_mail_client when password is longer that username (found
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001012 by Bruno Pape).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001013 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1014 (detected by Clang's 3.6 UBSan).
1015 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001016 initialized but not set (found by pravic).
1017 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001018 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001019 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001020 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1021 ssl_write() is called before the handshake is finished (introduced in
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001022 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001023 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1024 rejected.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001025 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001026 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
1027 * Fix hardclock() (only used in the benchmarking program) with some
1028 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001029 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001030 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1031 platforms.
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001032 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
1033 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001034 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1035 in 1.3.10).
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001036 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
1037 * Add missing dependency on SHA-256 in some x509 programs (reported by
1038 Gergely Budai).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001039 * Fix bug related to ssl_set_curves(): the client didn't check that the
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001040 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001041
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001042Changes
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001043 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1044 * Remove potential sources of timing variations (some contributed by Pascal
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001045 Junod).
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001046 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001047 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
1048 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001049 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
1050 more flexible (warning: OFLAGS is not used any more) (see the README)
1051 (contributed by Alon Bar-Lev).
1052 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001053 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001054 * Move from SHA-1 to SHA-256 in example programs using signatures
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001055 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001056 * Remove some unneeded inclusions of header files from the standard library
1057 "minimize" others (eg use stddef.h if only size_t is needed).
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001058 * Change #include lines in test files to use double quotes instead of angle
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001059 brackets for uniformity with the rest of the code.
1060 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001061
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001062= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001063Security
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001064 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001065 full and polarssl_free() is called (found by Mark Hasemeyer)
1066 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1067 not by default).
1068 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001069 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001070 client certificate) (found using Codenomicon Defensics).
1071 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1072 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001073 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001074 * Fix potential stack overflow while parsing crafted X.509 certificates
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001075 (TLS server is not affected if it doesn't ask for a client certificate)
1076 (found using Codenomicon Defensics).
1077 * Fix timing difference that could theoretically lead to a
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001078 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001079 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001080
1081Features
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001082 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001083 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
Paul Bakker6152b022015-04-14 15:00:09 +02001084 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001085 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001086 * Add x509_crl_parse_der().
1087 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001088 length of an X.509 verification chain.
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001089 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001090 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
1091 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001092 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001093 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1094 a compatible enough libc (eg uClibc).
1095 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001096 while using the default ciphersuite list.
1097 * Added new error codes and debug messages about selection of
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001098 ciphersuite/certificate.
1099
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001100Bugfix
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001101 * Stack buffer overflow if ctr_drbg_update() is called with too large
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001102 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1103 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001104 if memory_buffer_alloc_init() was called with buf not aligned and len not
1105 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001106 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001107 by Julian Ospald).
1108 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001109 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1110 multiple of 8 (found by Gergely Budai).
1111 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1112 Peter Vaskovic).
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001113 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1114 * ssl_get_verify_result() now works even if the handshake was aborted due
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001115 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001116 * Skip writing and parsing signature_algorithm extension if none of the
1117 key exchanges enabled needs certificates. This fixes a possible interop
1118 issue with some servers when a zero-length extension was sent. (Reported
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001119 by Peter Dettman.)
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001120 * On a 0-length input, base64_encode() did not correctly set output length
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001121 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001122
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001123Changes
1124 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
Paul Bakkere522d0f2015-01-14 16:12:48 +01001125 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001126 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001127 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001128 * Forbid repeated extensions in X.509 certificates.
1129 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001130 * A specific error is now returned when there are ciphersuites in common
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001131 but none of them is usable due to external factors such as no certificate
Paul Bakker9eac4f72014-10-20 13:56:15 +02001132 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001133 * It is now possible to disable negotiation of truncated HMAC server-side
1134 at runtime with ssl_set_truncated_hmac().
1135 * Example programs for SSL client and server now disable SSLv3 by default.
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001136 * Example programs for SSL client and server now disable RC4 by default.
Paul Bakkerb082bb52014-10-20 13:37:51 +02001137 * Use platform.h in all test suites and programs.
1138
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001139= PolarSSL 1.3.9 released 2014-10-20
Paul Bakkerb082bb52014-10-20 13:37:51 +02001140Security
1141 * Lowest common hash was selected from signature_algorithms extension in
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001142 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001143 * Remotely-triggerable memory leak when parsing some X.509 certificates
1144 (server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001145 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001146 * Remotely-triggerable memory leak when parsing crafted ClientHello
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001147 (not affected if ECC support was compiled out) (found using Codenomicon
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001148 Defensics).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001149
1150Bugfix
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001151 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001152 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
1153 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001154 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1155 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001156 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1157 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001158 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001159 * ssl_read() could return non-application data records on server while
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001160 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001161 * Server-initiated renegotiation would fail with non-blocking I/O if the
1162 write callback returned WANT_WRITE when requesting renegotiation.
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001163 * ssl_close_notify() could send more than one message in some circumstances
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001164 with non-blocking I/O.
1165 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1166 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001167 * Fix compile error with armcc in mpi_is_prime()
1168 * Fix potential bad read in parsing ServerHello (found by Adrien
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02001169 Vialletelle).
1170
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001171Changes
1172 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02001173 standard defining how to use SHA-2 with SSL 3.0).
1174 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02001175 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001176 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
1177 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001178 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
Paul Bakker1910aa72014-07-11 11:28:56 +02001179 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02001180 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
1181 RSA keys.
1182 * Accept spaces at end of line or end of buffer in base64_decode().
1183 * X.509 certificates with more than one AttributeTypeAndValue per
1184 RelativeDistinguishedName are not accepted any more.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001185
1186= PolarSSL 1.3.8 released 2014-07-11
1187Security
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02001188 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1189 It was possible to crash the server (and client) using crafted messages
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02001190 when a GCM suite was chosen.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02001191
1192Features
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02001193 * Add CCM module and cipher mode to Cipher Layer
1194 * Support for CCM and CCM_8 ciphersuites
Paul Bakker23647b42014-07-04 15:00:12 +02001195 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
1196 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02001197 * Blowfish in the cipher layer now supports variable length keys.
1198 * Add example config.h for PSK with CCM, optimized for low RAM usage.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001199 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Paul Bakker863989b2014-06-12 21:49:01 +02001200 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
1201 from the default list (inactive by default).
1202 * Add server-side enforcement of sent renegotiation requests
Paul Bakker34617722014-06-13 17:20:13 +02001203 (ssl_set_renegotiation_enforced())
1204 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02001205 ciphersuites to use and save some memory if the list is small.
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02001206
1207Changes
Paul Bakker28476e22014-07-01 15:59:04 +02001208 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
1209 required on some platforms (e.g. OpenBSD)
Paul Bakker863989b2014-06-12 21:49:01 +02001210 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
Paul Bakker5593f7c2014-05-06 10:29:28 +02001211 against unwanted compiler optimizations
1212 * md_list() now returns hashes strongest first
Paul Bakker1ebc0c52014-05-22 15:47:58 +02001213 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
Paul Bakkerdff31392014-05-22 15:06:41 +02001214 strongest offered by client.
Paul Bakker0f651c72014-05-22 15:12:19 +02001215 * All public contexts have _init() and _free() functions now for simpler
1216 usage pattern
Paul Bakker49033ba2014-06-12 21:46:13 +02001217
1218Bugfix
1219 * Fix in debug_print_msg()
1220 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakker3c38f292014-06-13 17:37:46 +02001221 * Remove less-than-zero checks on unsigned numbers
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001222 * Stricter check on SSL ClientHello internal sizes compared to actual packet
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02001223 size (found by TrustInSoft)
1224 * Fix WSAStartup() return value check (found by Peter Vaskovic)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001225 * Other minor issues (found by Peter Vaskovic)
1226 * Fix symlink command for cross compiling with CMake (found by Andre
1227 Heinecke)
1228 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02001229 * Very small records were incorrectly rejected when truncated HMAC was in
1230 use with some ciphersuites and versions (RC4 in all versions, CBC with
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02001231 versions < TLS 1.1).
1232 * Very large records using more than 224 bytes of padding were incorrectly
1233 rejected with CBC-based ciphersuites and TLS >= 1.1
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07001234 * Very large records using less padding could cause a buffer overread of up
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02001235 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
1236 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02001237 been removed in 1.3.6.)
1238 * Restore ability to locally trust a self-signed cert that is not a proper
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02001239 CA for use as an end entity certificate. (This had been removed in
1240 1.3.6.)
1241 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02001242 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
Paul Bakkerd5983182014-07-04 13:50:31 +02001243 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1244 * Fix off-by-one error in parsing Supported Point Format extension that
Paul Bakker6c343d72014-07-10 14:36:19 +02001245 caused some handshakes to fail.
1246 * Fix possible miscomputation of the premaster secret with DHE-PSK key
Paul Bakker5593f7c2014-05-06 10:29:28 +02001247 exchange that caused some handshakes to fail with other implementations.
Paul Bakker47431b62014-05-02 13:27:13 +02001248 (Failure rate <= 1/255 with common DHM moduli.)
Paul Bakkereaebbd52014-04-25 15:04:14 +02001249 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerc73079a2014-04-25 16:34:30 +02001250 * Fix base64_decode() to return and check length correctly (in case of
1251 tight buffers)
Paul Bakker0f90d7d2014-04-30 11:49:44 +02001252 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
1253 by Hui Dong)
Paul Bakker92478c32014-04-25 15:18:34 +02001254
Paul Bakker088c5c52014-04-25 11:11:10 +02001255= PolarSSL 1.3.7 released on 2014-05-02
1256Features
1257 * debug_set_log_mode() added to determine raw or full logging
Paul Bakker92478c32014-04-25 15:18:34 +02001258 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker63844402014-04-30 15:34:12 +02001259 * version_check_feature() added to check for compile-time options at
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02001260 run-time
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02001261
Paul Bakker088c5c52014-04-25 11:11:10 +02001262Changes
Paul Bakkere92f73d2014-04-18 14:08:26 +02001263 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
1264 checked and filled in the relevant module headers
1265 * Debug module only outputs full lines instead of parts
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02001266 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
1267 * AES-NI now compiles with "old" assemblers too
Paul Bakkerfdba4682014-04-25 11:48:35 +02001268 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker61885c72014-04-25 12:59:03 +02001269
1270Bugfix
Paul Bakkera7036632014-04-30 10:15:38 +02001271 * Only iterate over actual certificates in ssl_write_certificate_request()
1272 (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02001273 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
Paul Bakkerf96f7b62014-04-30 16:02:38 +02001274 Karger)
Paul Bakker33dc46b2014-04-30 16:11:39 +02001275 * cert_write app should use subject of issuer certificate as issuer of cert
1276 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02001277 ciphersuites, for full SSL frames of data.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02001278 * Improve interoperability by not writing extension length in ClientHello /
Markus Pfeiffera26a0052014-04-22 20:16:15 +00001279 ServerHello when no extensions are present (found by Matthew Page)
Barry K. Nathancf975f52014-04-23 17:40:25 -07001280 * rsa_check_pubkey() now allows an E up to N
1281 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakkere92f73d2014-04-18 14:08:26 +02001282 * mpi_fill_random() was creating numbers larger than requested on
Paul Bakker784b04f2014-04-11 15:33:59 +02001283 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001284 * Fix dependencies issues in X.509 test suite.
Paul Bakker27e36d32014-04-08 12:33:37 +02001285 * Some parts of ssl_tls.c were compiled even when the module was disabled.
1286 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Paul Bakker1cfc4582014-04-09 15:25:13 +02001287 * Fix detection of Clang on some Apple platforms with CMake
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001288 (found by Barry K. Nathan)
Paul Bakker59366212014-04-09 15:55:20 +02001289
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001290= PolarSSL 1.3.6 released on 2014-04-11
1291
Paul Bakker27e36d32014-04-08 12:33:37 +02001292Features
Paul Bakker4984d3c2014-04-04 15:39:37 +02001293 * Support for the ALPN SSL extension
1294 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02001295 * Enable verification of the keyUsage extension for CA and leaf
1296 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02001297 * Enable verification of the extendedKeyUsage extension
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02001298 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker4984d3c2014-04-04 15:39:37 +02001299
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001300Changes
1301 * x509_crt_info() now prints information about parsed extensions as well
1302 * pk_verify() now returns a specific error code when the signature is valid
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02001303 but shorter than the supplied length.
1304 * Use UTC time to check certificate validity.
1305 * Reject certificates with times not in UTC, per RFC 5280.
1306
Paul Bakker4224bc02014-04-08 14:36:50 +02001307Security
1308 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001309 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001310 * The notAfter date of some certificates was no longer checked since 1.3.5.
1311 This affects certificates in the user-supplied chain except the top
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01001312 certificate. If the user-supplied chain contains only one certificates,
Paul Bakker75a28602014-03-31 12:08:17 +02001313 it is not affected (ie, its notAfter date is properly checked).
1314 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02001315 TrustInSoft)
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02001316
1317Bugfix
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02001318 * The length of various ClientKeyExchange messages was not properly checked.
1319 * Some example server programs were not sending the close_notify alert.
Shuo Chen95a0d112014-04-04 21:04:40 -07001320 * Potential memory leak in mpi_exp_mod() when error occurs during
1321 calculation of RR.
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01001322 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
1323 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01001324 Gergely Budai).
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02001325 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
1326 (found by Gergely Budai)
Paul Bakker16300582014-04-11 13:28:43 +02001327 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
1328 Shuo Chen).
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02001329 * oid_get_numeric_string() used to truncate the output without returning an
1330 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001331 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Paul Bakker96d52652014-03-26 16:55:50 +01001332 * Calling pk_debug() on an RSA-alt key would segfault.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001333 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
1334 * Potential buffer overwrite in pem_write_buffer() because of low length
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001335 indication (found by Thijs Alkemade)
Paul Bakker6a28e722014-02-06 13:41:55 +01001336 * EC curves constants, which should be only in ROM since 1.3.3, were also
Paul Bakkerf2561b32014-02-06 15:11:55 +01001337 stored in RAM due to missing 'const's (found by Gergely Budai).
Paul Bakker2ceda572014-02-06 15:55:25 +01001338
1339= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001340Features
1341 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01001342 * Option to set the Curve preference order (disabled by default)
Paul Bakker66ff70d2014-03-26 11:54:05 +01001343 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakker6a28e722014-02-06 13:41:55 +01001344 * Ability to provide alternate timing implementation
1345 * Ability to force the entropy module to use SHA-256 as its basis
1346 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker47703a02014-02-06 15:01:20 +01001347 * Testing script ssl-opt.sh added for testing 'live' ssl option
1348 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01001349 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01001350 * Entropy module now supports seed writing and reading
1351
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001352Changes
1353 * Deprecated the Memory layer
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001354 * entropy_add_source(), entropy_update_manual() and entropy_gather()
Paul Bakker674e0b02014-03-26 13:26:52 +01001355 now thread-safe if POLARSSL_THREADING_C defined
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001356 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001357 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1358 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01001359 * Revamped the compat.sh interoperatibility script to include support for
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001360 testing against GnuTLS
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01001361 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01001362 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001363
Paul Bakker91c61bc2014-03-26 14:06:55 +01001364Security
1365 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001366 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001367 attack was already impossible when authentication is required).
1368 * Check notBefore timestamp of certificates and CRLs from the future.
1369 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001370 * Fixed possible buffer overflow with overlong PSK
Paul Bakkercd6d69a2014-02-06 15:43:21 +01001371 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01001372 TrustInSoft)
Paul Bakker3d52ab72014-03-07 10:33:55 +01001373
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01001374Bugfix
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01001375 * ecp_gen_keypair() does more tries to prevent failure because of
Alex Wilson73491422014-03-06 00:04:09 +10001376 statistics
1377 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001378 * Fixed testing with out-of-source builds using cmake
1379 * Fixed version-major intolerance in server
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01001380 * Fixed CMake symlinking on out-of-source builds
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001381 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001382 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001383 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01001384 Alex Wilson.)
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001385 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
Paul Bakker3d6504a2014-03-17 13:41:51 +01001386 * m_sleep() was sleeping twice too long on most Unix platforms.
1387 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakker77f4f392014-03-26 15:28:55 +01001388 send() would return an EAGAIN error when sending the ticket.
1389 * ssl_cache was leaking memory when reusing a timed out entry containing a
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01001390 client certificate.
Paul Bakker5fff23b2014-03-26 15:34:54 +01001391 * ssl_srv was leaking memory when client presented a timed out ticket
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001392 containing a client certificate
Paul Bakker2aca2412014-01-27 11:49:46 +01001393 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
Paul Bakker3eb96732014-01-22 13:08:19 +01001394 out_ctr failed
Paul Bakker0ac99ca2014-01-22 13:08:44 +01001395 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
Paul Bakker5862eee2014-01-22 14:18:03 +01001396 of one of them failed
Paul Bakker556efba2014-01-24 15:38:12 +01001397 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01001398 * x509_get_current_time() uses localtime_r() to prevent thread issues
Paul Bakker3eb96732014-01-22 13:08:19 +01001399
1400= PolarSSL 1.3.4 released on 2014-01-27
1401Features
1402 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakkerd75ba402014-01-24 16:11:17 +01001403 * Support for RIPEMD-160
Paul Bakkerb84582b2014-01-27 12:23:43 +01001404 * Support for AES CFB8 mode
1405 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01001406
1407Bugfix
1408 * Potential memory leak in bignum_selftest()
Paul Bakkerb84582b2014-01-27 12:23:43 +01001409 * Replaced expired test certificate
1410 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakker3eb96732014-01-22 13:08:19 +01001411 * net module handles timeouts on blocking sockets better (found by Tilman
Paul Bakker5bc07a32013-12-31 10:57:44 +01001412 Sauerbeck)
Paul Bakker014f1432013-12-02 14:54:01 +01001413 * Assembly format fixes in bn_mul.h
1414
Paul Bakker9dc53a92013-12-02 14:55:28 +01001415Security
1416 * Missing MPI_CHK calls added around unguarded mpi calls (found by
Paul Bakker48d78a52013-12-05 16:11:38 +01001417 TrustInSoft)
Paul Bakkerfdf94692013-12-17 13:09:31 +01001418
Paul Bakker5a607d22013-12-17 14:33:42 +01001419= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker23116fd2013-12-30 14:09:47 +01001420Features
Paul Bakkerf9c49532013-12-19 15:40:58 +01001421 * EC key generation support in gen_key app
Paul Bakker014f1432013-12-02 14:54:01 +01001422 * Support for adhering to client ciphersuite order preference
Paul Bakker7aa03752013-11-26 17:37:31 +01001423 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
1424 * Support for Curve25519
1425 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
1426 * Support for IPv6 in the NET module
Paul Bakkerc3d0d072013-12-02 14:50:49 +01001427 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakker4040d7e2013-12-02 14:52:57 +01001428 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakkerb14817d2013-12-02 22:03:23 +01001429
Paul Bakker5ab68ba2013-12-17 13:10:48 +01001430Changes
Paul Bakkerc7387912013-12-31 10:32:50 +01001431 * gen_prime() speedup
Paul Bakkera8fd3e32013-12-31 11:54:08 +01001432 * Speedup of ECP multiplication operation
Paul Bakker7aa03752013-11-26 17:37:31 +01001433 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001434 * Dropped use of readdir_r() instead of readdir() with threading support
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01001435 * More constant-time checks in the RSA module
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001436 * Split off curves from ecp.c into ecp_curves.c
Paul Bakkera9a028e2013-11-21 17:31:06 +01001437 * Curves are now stored fully in ROM
Paul Bakker7aa03752013-11-26 17:37:31 +01001438 * Memory usage optimizations in ECP module
1439 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker6f0636a2013-12-16 15:24:05 +01001440
Paul Bakkerf70fe812013-12-16 16:43:10 +01001441Bugfix
Paul Bakker1a56fc92013-12-19 13:51:24 +01001442 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakker6ea1a952013-12-31 11:16:03 +01001443 * Fixed X.509 hostname comparison (with non-regular characters)
1444 * SSL now gracefully handles missing RNG
Paul Bakker6992eb72013-12-31 11:35:16 +01001445 * Missing defines / cases for RSA_PSK key exchange
1446 * crypt_and_hash app checks MAC before final decryption
Paul Bakkerf2b4d862013-11-20 17:23:53 +01001447 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakker956c9e02013-12-19 14:42:28 +01001448 * Memory leak in benchmark application
1449 * Fixed x509_crt_parse_path() bug on Windows platforms
1450 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
1451 TrustInSoft)
Paul Bakkerf4dc1862013-11-04 17:29:42 +01001452 * Fixed potential overflow in certificate size verification in
Paul Bakker08bb1872013-10-28 14:03:26 +01001453 ssl_write_certificate() (found by TrustInSoft)
1454
Paul Bakker3f917e22013-10-28 14:16:59 +01001455Security
Paul Bakker16421222013-10-28 14:37:09 +01001456 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Paul Bakker08bb1872013-10-28 14:03:26 +01001457 TrustInSoft)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001458
1459= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakkere1121b62013-10-31 14:37:37 +01001460Features
Paul Bakker7b0be682013-10-29 14:24:37 +01001461 * PK tests added to test framework
Paul Bakkere1121b62013-10-31 14:37:37 +01001462 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker7bc745b2013-10-28 14:39:49 +01001463 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker677377f2013-10-28 12:54:26 +01001464
Paul Bakker16421222013-10-28 14:37:09 +01001465Changes
Paul Bakker677377f2013-10-28 12:54:26 +01001466 * Padding checks in cipher layer are now constant-time
Paul Bakker45a2c8d2013-10-28 12:57:08 +01001467 * Value comparisons in SSL layer are now constant-time
Paul Bakker68037da2013-10-28 14:02:40 +01001468 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakker50dc8502013-10-28 21:19:10 +01001469 * SSL Renegotiation was refactored
Paul Bakker93c6aa42013-10-28 22:28:09 +01001470
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01001471Bugfix
Paul Bakkerfa6a6202013-10-28 18:48:30 +01001472 * More stringent checks in cipher layer
Paul Bakkere1121b62013-10-31 14:37:37 +01001473 * Server does not send out extensions not advertised by client
Paul Bakker677377f2013-10-28 12:54:26 +01001474 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001475 * Misc fixes and additions to dependency checks
Paul Bakkerb799dec2013-10-11 10:03:27 +02001476 * Const correctness
1477 * cert_write with selfsign should use issuer_name as subject_name
Paul Bakker376e8152013-10-15 12:44:23 +02001478 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerf34673e2013-10-15 12:46:17 +02001479 * Defines to handle UEFI environment under MSVC
Paul Bakkerb799dec2013-10-11 10:03:27 +02001480 * Server-side initiated renegotiations send HelloRequest
Paul Bakkerddba8822013-10-11 09:21:56 +02001481
1482= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakker16770332013-10-11 09:59:44 +02001483Features
Paul Bakkerbe089b02013-10-14 15:51:50 +02001484 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakkera7ea6a52013-10-15 11:55:10 +02001485 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerddba8822013-10-11 09:21:56 +02001486 * Support for RSA-PSK key-exchange and ciphersuites
1487
1488Changes
1489 * RSA blinding locks for a smaller amount of time
1490 * TLS compression only allocates working buffer once
Paul Bakkerfcc17212013-10-11 09:36:52 +02001491 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02001492 * config.h is more script-friendly
Paul Bakker4aa40d42013-10-11 10:49:24 +02001493
Paul Bakkerb7c13122013-10-11 10:51:32 +02001494Bugfix
Paul Bakker5191e922013-10-11 10:54:28 +02001495 * Missing MSVC defines added
Paul Bakkerddba8822013-10-11 09:21:56 +02001496 * Compile errors with POLARSSL_RSA_NO_CRT
Paul Bakker5c17ccd2013-10-15 13:12:41 +02001497 * Header files with 'polarssl/'
Paul Bakker41c83d32013-03-20 14:39:14 +01001498 * Const correctness
1499 * Possible naming collision in dhm_context
1500 * Better support for MSVC
1501 * threading_set_alt() name
1502 * Added missing x509write_crt_set_version()
Paul Bakkerc8676782013-08-28 12:15:11 +02001503
1504= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker8f4ddae2013-04-15 15:09:54 +02001505Features
Paul Bakkerb91c2b52013-04-19 16:05:16 +02001506 * Elliptic Curve Cryptography module added
Paul Bakker6e339b52013-07-03 13:37:05 +02001507 * Elliptic Curve Diffie Hellman module added
1508 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
Paul Bakker2466d932013-09-28 14:40:38 +02001509 (ECDHE-based ciphersuites)
Paul Bakker5ad403f2013-09-18 21:21:30 +02001510 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
Paul Bakkerf85778e2013-07-19 14:55:25 +02001511 (ECDSA-based ciphersuites)
1512 * Ability to specify allowed ciphersuites based on the protocol version.
1513 * PSK and DHE-PSK based ciphersuites added
1514 * Memory allocation abstraction layer added
Paul Bakkerda4d1c32013-08-14 12:24:34 +02001515 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
1516 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker936539a2013-08-14 13:49:20 +02001517 * Public Key abstraction layer added
Paul Bakkerca174fe2013-08-28 16:31:30 +02001518 * Parsing Elliptic Curve keys
1519 * Parsing Elliptic Curve certificates
Paul Bakker7fb4a792013-09-12 12:00:52 +02001520 * Support for max_fragment_length extension (RFC 6066)
1521 * Support for truncated_hmac extension (RFC 6066)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02001522 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
Paul Bakker8b817dc2013-09-25 18:03:58 +02001523 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
1524 * Support for session tickets (RFC 5077)
Paul Bakker41c83d32013-03-20 14:39:14 +01001525 * Certificate Request (CSR) generation with extensions (key_usage,
Paul Bakker9b5798d2013-03-13 13:53:00 +01001526 ns_cert_type)
Paul Bakkerd2f068e2013-08-27 21:19:20 +02001527 * X509 Certificate writing with extensions (basic_constraints,
1528 issuer_key_identifier, etc)
Paul Bakker68884e32013-01-07 18:20:04 +01001529 * Optional blinding for RSA, DHM and EC
1530 * Support for multiple active certificate / key pairs in SSL servers for
Paul Bakker9b5798d2013-03-13 13:53:00 +01001531 the same host (Not to be confused with SNI!)
1532
Paul Bakkerc70b9822013-04-07 22:00:46 +02001533Changes
1534 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02001535 individually
Paul Bakker2fbefde2013-06-29 16:01:15 +02001536 * Introduced separate SSL Ciphersuites module that is based on
1537 Cipher and MD information
Paul Bakker0be444a2013-08-27 21:55:01 +02001538 * Internals for SSL module adapted to have separate IV pointer that is
Paul Bakkere2ab84f2013-06-29 18:24:32 +02001539 dynamically set (Better support for hardware acceleration)
1540 * Moved all OID functionality to a separate module. RSA function
Paul Bakker9e36f042013-06-30 14:34:05 +02001541 prototypes for the RSA sign and verify functions changed as a result
Paul Bakker548957d2013-08-30 10:30:02 +02001542 * Split up the GCM module into a starts/update/finish cycle
Paul Bakker45f21c72013-09-18 15:33:49 +02001543 * Client and server now filter sent and accepted ciphersuites on minimum
1544 and maximum protocol version
Paul Bakker5ad403f2013-09-18 21:21:30 +02001545 * Ability to disable server_name extension (RFC 6066)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02001546 * Renamed error_strerror() to the less conflicting polarssl_strerror()
1547 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9b5798d2013-03-13 13:53:00 +01001548 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001549 * All RSA operations require a random generator for blinding purposes
Paul Bakker73d44312013-05-22 13:56:26 +02001550 * X509 core refactored
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02001551 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker1e6a1752013-07-26 14:10:22 +02001552 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakker003dbad2013-09-09 17:26:14 +02001553 * Support faulty X509 v1 certificates with extensions
Paul Bakkereff2e6d2013-04-11 17:13:22 +02001554 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakkeraab30c12013-08-30 11:00:25 +02001555
1556Bugfix
1557 * Fixed parse error in ssl_parse_certificate_request()
1558 * zlib compression/decompression skipped on empty blocks
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02001559 * Support for AIX header locations in net.c module
1560 * Fixed file descriptor leaks
1561
1562Security
1563 * RSA blinding on CRT operations to counter timing attacks
1564 (found by Cyril Arnaud and Pierre-Alain Fouque)
1565
1566
1567= Version 1.2.14 released 2015-05-??
1568
1569Security
1570 * Fix potential invalid memory read in the server, that allows a client to
1571 crash it remotely (found by Caj Larsson).
1572 * Fix potential invalid memory read in certificate parsing, that allows a
1573 client to crash the server remotely if client authentication is enabled
1574 (found using Codenomicon Defensics).
1575 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
1576 https://dl.acm.org/citation.cfm?id=2714625
1577
1578Bugfix
1579 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
1580 * Fix hardclock() (only used in the benchmarking program) with some
1581 versions of mingw64 (found by kxjhlele).
1582 * Fix warnings from mingw64 in timing.c (found by kxjklele).
1583 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1584 platforms (found with Coverity Scan).
1585
1586= Version 1.2.13 released 2015-02-16
1587Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
1588 this will be made in the 1.2 branch at this point.
1589
1590Security
1591 * Fix remotely-triggerable uninitialised pointer dereference caused by
1592 crafted X.509 certificate (TLS server is not affected if it doesn't ask
1593 for a client certificate) (found using Codenomicon Defensics).
1594 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1595 (TLS server is not affected if it doesn't ask for a client certificate)
1596 (found using Codenomicon Defensics).
1597 * Fix potential stack overflow while parsing crafted X.509 certificates
1598 (TLS server is not affected if it doesn't ask for a client certificate)
1599 found using Codenomicon Defensics).
1600 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
1601 (TLS server is not affected if it doesn't ask for a client certificate).
1602
1603Bugfix
1604 * Fix potential undefined behaviour in Camellia.
1605 * Fix memory leaks in PKCS#5 and PKCS#12.
1606 * Stack buffer overflow if ctr_drbg_update() is called with too large
1607 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1608 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
1609 in 1.2.12).
1610 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1611 Peter Vaskovic).
1612 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1613 * ssl_get_verify_result() now works even if the handshake was aborted due
1614 to a failed verification (found by Fredrik Axelsson).
1615 * Skip writing and parsing signature_algorithm extension if none of the
1616 key exchanges enabled needs certificates. This fixes a possible interop
1617 issue with some servers when a zero-length extension was sent. (Reported
1618 by Peter Dettman.)
1619 * On a 0-length input, base64_encode() did not correctly set output length
Paul Bakkera6c5ea22014-10-24 16:26:29 +02001620 (found by Hendrik van den Boogaard).
1621
1622Changes
1623 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
1624 * Forbid repeated extensions in X.509 certificates.
1625 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
1626 length of an X.509 verification chain (default = 8).
1627= Version 1.2.12 released 2014-10-24
1628
1629Security
1630 * Remotely-triggerable memory leak when parsing some X.509 certificates
1631 (server is not affected if it doesn't ask for a client certificate).
1632 (Found using Codenomicon Defensics.)
1633
1634Bugfix
1635 * Fix potential bad read in parsing ServerHello (found by Adrien
1636 Vialletelle).
1637 * ssl_close_notify() could send more than one message in some circumstances
1638 with non-blocking I/O.
1639 * x509_crt_parse() did not increase total_failed on PEM error
1640 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1641 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1642 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
1643 * ssl_read() could return non-application data records on server while
1644 renegotation was pending, and on client when a HelloRequest was received.
1645 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
1646
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02001647Changes
1648 * X.509 certificates with more than one AttributeTypeAndValue per
1649 RelativeDistinguishedName are not accepted any more.
1650 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
1651 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
1652 * Accept spaces at end of line or end of buffer in base64_decode().
1653
1654= Version 1.2.11 released 2014-07-11
1655Features
1656 * Entropy module now supports seed writing and reading
1657
1658Changes
1659 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
1660 * Improvements to the CMake build system, contributed by Julian Ospald.
1661 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1662 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
1663 * Improvements to tests/Makefile, contributed by Oden Eriksson.
1664 * Use UTC time to check certificate validity.
1665 * Reject certificates with times not in UTC, per RFC 5280.
1666 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
1667 against unwanted compiler optimizations
1668
1669Security
1670 * Forbid change of server certificate during renegotiation to prevent
1671 "triple handshake" attack when authentication mode is optional (the
1672 attack was already impossible when authentication is required).
1673 * Check notBefore timestamp of certificates and CRLs from the future.
1674 * Forbid sequence number wrapping
1675 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
1676 TrustInSoft)
1677 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1678 It was possible to crash the server (and client) using crafted messages
1679 when a GCM suite was chosen.
1680
1681Bugfix
1682 * Fixed X.509 hostname comparison (with non-regular characters)
1683 * SSL now gracefully handles missing RNG
1684 * crypt_and_hash app checks MAC before final decryption
1685 * Fixed x509_crt_parse_path() bug on Windows platforms
1686 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
1687 TrustInSoft)
1688 * Fixed potential overflow in certificate size verification in
1689 ssl_write_certificate() (found by TrustInSoft)
1690 * Fix ASM format in bn_mul.h
1691 * Potential memory leak in bignum_selftest()
1692 * Replaced expired test certificate
1693 * ssl_mail_client now terminates lines with CRLF, instead of LF
1694 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
1695 * Fixed testing with out-of-source builds using cmake
1696 * Fixed version-major intolerance in server
1697 * Fixed CMake symlinking on out-of-source builds
1698 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
1699 Alex Wilson.)
1700 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
1701 out_ctr failed
1702 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
1703 of one of them failed
1704 * x509_get_current_time() uses localtime_r() to prevent thread issues
1705 * Some example server programs were not sending the close_notify alert.
1706 * Potential memory leak in mpi_exp_mod() when error occurs during
1707 calculation of RR.
1708 * Improve interoperability by not writing extension length in ClientHello
1709 when no extensions are present (found by Matthew Page)
1710 * rsa_check_pubkey() now allows an E up to N
1711 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
1712 * mpi_fill_random() was creating numbers larger than requested on
1713 big-endian platform when size was not an integer number of limbs
1714 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
1715 * Stricter check on SSL ClientHello internal sizes compared to actual packet
1716 size (found by TrustInSoft)
Paul Bakker3a2c0562013-10-07 16:22:05 +02001717 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
1718 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
1719 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1720 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
1721 * Fix base64_decode() to return and check length correctly (in case of
1722 tight buffers)
1723
1724= Version 1.2.10 released 2013-10-07
1725Changes
Paul Bakkerd93d28e2013-10-01 10:12:42 +02001726 * Changed RSA blinding to a slower but thread-safe version
Paul Bakkerc13aab12013-09-26 10:12:19 +02001727
1728Bugfix
1729 * Fixed memory leak in RSA as a result of introduction of blinding
1730 * Fixed ssl_pkcs11_decrypt() prototype
1731 * Fixed MSVC project files
1732
1733= Version 1.2.9 released 2013-10-01
1734Changes
1735 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
1736
1737Bugfix
1738 * Fixed potential memory leak when failing to resume a session
1739 * Fixed potential file descriptor leaks (found by Remi Gacogne)
1740 * Minor fixes
Paul Bakkerde656232013-06-24 19:07:34 +02001741
1742Security
1743 * Fixed potential heap buffer overflow on large hostname setting
1744 * Fixed potential negative value misinterpretation in load_file()
1745 * RSA blinding on CRT operations to counter timing attacks
1746 (found by Cyril Arnaud and Pierre-Alain Fouque)
1747
1748= Version 1.2.8 released 2013-06-19
1749Features
1750 * Parsing of PKCS#8 encrypted private key files
1751 * PKCS#12 PBE and derivation functions
1752 * Centralized module option values in config.h to allow user-defined
1753 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
1754
1755Changes
1756 * HAVEGE random generator disabled by default
1757 * Internally split up x509parse_key() into a (PEM) handler function
1758 and specific DER parser functions for the PKCS#1 and unencrypted
1759 PKCS#8 private key formats
1760 * Added mechanism to provide alternative implementations for all
1761 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
1762 config.h)
1763 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
1764 old PBKDF2 module
1765
1766Bugfix
1767 * Secure renegotiation extension should only be sent in case client
1768 supports secure renegotiation
1769 * Fixed offset for cert_type list in ssl_parse_certificate_request()
1770 * Fixed const correctness issues that have no impact on the ABI
1771 * x509parse_crt() now better handles PEM error situations
1772 * ssl_parse_certificate() now calls x509parse_crt_der() directly
1773 instead of the x509parse_crt() wrapper that can also parse PEM
1774 certificates
1775 * x509parse_crtpath() is now reentrant and uses more portable stat()
1776 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
1777 * Fixed values for 2-key Triple DES in cipher layer
1778 * ssl_write_certificate_request() can handle empty ca_chain
1779
1780Security
1781 * A possible DoS during the SSL Handshake, due to faulty parsing of
1782 PEM-encoded certificates has been fixed (found by Jack Lloyd)
1783
1784= Version 1.2.7 released 2013-04-13
1785Features
1786 * Ability to specify allowed ciphersuites based on the protocol version.
1787
1788Changes
Paul Bakker90f042d2013-03-11 11:38:44 +01001789 * Default Blowfish keysize is now 128-bits
Paul Bakkerc0463502013-02-14 11:19:38 +01001790 * Test suites made smaller to accommodate Raspberry Pi
1791
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01001792Bugfix
1793 * Fix for MPI assembly for ARM
Paul Bakkere3e4a592013-02-28 10:20:53 +01001794 * GCM adapted to support sizes > 2^29
Paul Bakker37286a52013-03-06 16:55:11 +01001795
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01001796= Version 1.2.6 released 2013-03-11
Paul Bakkerc0463502013-02-14 11:19:38 +01001797Bugfix
Paul Bakkerb3869132013-02-28 17:21:01 +01001798 * Fixed memory leak in ssl_free() and ssl_reset() for active session
1799 * Corrected GCM counter incrementation to use only 32-bits instead of
1800 128-bits (found by Yawning Angel)
1801 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakkera43231c2013-02-28 17:33:49 +01001802 * Fixed net_bind() for specified IP addresses on little endian systems
1803 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakker78a8c712013-03-06 17:01:52 +01001804
1805Changes
Paul Bakkere81beda2013-03-06 17:40:46 +01001806 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
1807 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
Paul Bakkerb3869132013-02-28 17:21:01 +01001808 PKCS#1 v2.1 functions
Paul Bakkere47b34b2013-02-27 14:48:00 +01001809 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
1810 or rsa_rsaes_oaep_decrypt()
1811 * Re-added handling for SSLv2 Client Hello when the define
Paul Bakker8804f692013-02-28 18:06:26 +01001812 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
1813 * The SSL session cache module (ssl_cache) now also retains peer_cert
1814 information (not the entire chain)
Paul Bakkere47b34b2013-02-27 14:48:00 +01001815
Paul Bakkerc7a2da42013-02-02 19:23:57 +01001816Security
Paul Bakker8fe40dc2013-02-02 12:43:08 +01001817 * Removed further timing differences during SSL message decryption in
1818 ssl_decrypt_buf()
Paul Bakkerd66f0702013-01-31 16:57:45 +01001819 * Removed timing differences due to bad padding from
1820 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
Paul Bakker40865c82013-01-31 17:13:13 +01001821 operations
1822
Paul Bakkera35aa542013-03-06 17:06:21 +01001823= Version 1.2.5 released 2013-02-02
Paul Bakker8fe40dc2013-02-02 12:43:08 +01001824Changes
Paul Bakker45829992013-01-03 14:52:21 +01001825 * Allow enabling of dummy error_strerror() to support some use-cases
1826 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01001827 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker1961b702013-01-25 14:49:24 +01001828 * Sending of security-relevant alert messages that do not break
Paul Bakker45829992013-01-03 14:52:21 +01001829 interoperability can be switched on/off with the flag
1830 POLARSSL_SSL_ALL_ALERT_MESSAGES
1831
1832Security
Paul Bakker40628ba2013-01-03 10:50:31 +01001833 * Removed timing differences during SSL message decryption in
1834 ssl_decrypt_buf() due to badly formatted padding
1835
Paul Bakker21dca692013-01-03 11:41:08 +01001836= Version 1.2.4 released 2013-01-25
Paul Bakker9c94cdd2013-01-22 13:45:33 +01001837Changes
Paul Bakker68884e32013-01-07 18:20:04 +01001838 * More advanced SSL ciphersuite representation and moved to more dynamic
1839 SSL core
Paul Bakker40628ba2013-01-03 10:50:31 +01001840 * Added ssl_handshake_step() to allow single stepping the handshake process
1841
Paul Bakker9c94cdd2013-01-22 13:45:33 +01001842Bugfix
1843 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakkerfb1ba782012-11-26 16:28:25 +01001844 * Handle future version properly in ssl_write_certificate_request()
Paul Bakkerdf5069c2012-11-24 12:20:19 +01001845 * Correctly handle CertificateRequest message in client for <= TLS 1.1
Paul Bakkere667c982012-11-20 13:50:22 +01001846 without DN list
1847
1848= Version 1.2.3 released 2012-11-26
Paul Bakkerdf5069c2012-11-24 12:20:19 +01001849Bugfix
Paul Bakkere667c982012-11-20 13:50:22 +01001850 * Server not always sending correct CertificateRequest message
Paul Bakker7c90da92012-11-23 14:02:40 +01001851
Paul Bakkerdf5069c2012-11-24 12:20:19 +01001852= Version 1.2.2 released 2012-11-24
1853Changes
Paul Bakker7c90da92012-11-23 14:02:40 +01001854 * Added p_hw_data to ssl_context for context specific hardware acceleration
Paul Bakker14926332012-11-20 10:58:09 +01001855 data
Hanno Becker01a0e072017-07-26 11:49:40 +01001856 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkerb8156822012-11-13 12:52:17 +00001857
Paul Bakker34d8dbc2012-11-14 12:11:38 +00001858Bugfixes
1859 * Fixed client authentication compatibility
1860 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
1861
Paul Bakker7a2538e2012-11-02 10:59:36 +00001862= Version 1.2.1 released 2012-11-20
1863Changes
Paul Bakkerd9374b02012-11-02 11:02:58 +00001864 * Depth that the certificate verify callback receives is now numbered
Paul Bakkerf02c5642012-11-13 10:25:21 +00001865 bottom-up (Peer cert depth is 0)
1866
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01001867Bugfixes
1868 * Fixes for MSVC6
Paul Bakker9daf0d02012-11-13 12:13:27 +00001869 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakker7a2538e2012-11-02 10:59:36 +00001870 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
Paul Bakkerc9c5df92012-10-31 13:55:27 +00001871 Pégourié-Gonnard)
Paul Bakkerfab5c822012-02-06 16:45:10 +00001872 * Fixed possible segfault in mpi_shift_r() (found by Manuel
1873 Pégourié-Gonnard)
1874 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
1875
Paul Bakkera8cd2392012-02-11 16:09:32 +00001876= Version 1.2.0 released 2012-10-31
1877Features
1878 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
Paul Bakkerbdb912d2012-02-13 23:11:30 +00001879 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
1880 default!
1881 * Added support for wildcard certificates
1882 * Added support for multi-domain certificates through the X509 Subject
Paul Bakker89e80c92012-03-20 13:50:09 +00001883 Alternative Name extension
Paul Bakker48916f92012-09-16 19:57:18 +00001884 * Added preliminary ASN.1 buffer writing support
Paul Bakkerca4ab492012-04-18 14:23:57 +00001885 * Added preliminary X509 Certificate Request writing support
Paul Bakker01cc3942012-05-08 08:36:15 +00001886 * Added key_app_writer example application
Paul Bakker05ef8352012-05-08 09:17:57 +00001887 * Added cert_req example application
Paul Bakkere6ee41f2012-05-19 08:43:48 +00001888 * Added base Galois Counter Mode (GCM) for AES
Paul Bakkerc9c5df92012-10-31 13:55:27 +00001889 * Added TLS 1.2 support (RFC 5246)
Paul Bakker8d914582012-06-04 12:46:42 +00001890 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00001891 * Added commandline error code convertor (util/strerror)
Paul Bakker2770fbd2012-07-03 13:30:23 +00001892 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakker6132d0a2012-07-04 17:10:40 +00001893 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerf518b162012-08-23 13:03:18 +00001894 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker48916f92012-09-16 19:57:18 +00001895 * Added X509 CA Path support
Paul Bakker29b64762012-09-25 09:36:44 +00001896 * Added Thumb assembly optimizations
Paul Bakker0a597072012-09-25 21:55:46 +00001897 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker5701cdc2012-09-27 21:49:42 +00001898 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakker1d29fb52012-09-28 13:28:45 +00001899 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakkerfab5c822012-02-06 16:45:10 +00001900 * Added Secure Renegotiation (RFC 5746)
Paul Bakker1504af52012-02-11 16:17:43 +00001901 * Added predefined DHM groups from RFC 5114
1902 * Added simple SSL session cache implementation
Paul Bakker048d04e2012-02-12 17:31:04 +00001903 * Added ServerName extension parsing (SNI) at server side
Paul Bakker6b906e52012-05-08 12:01:43 +00001904 * Added option to add minimum accepted SSL/TLS protocol version
1905
Paul Bakker186751d2012-05-08 13:16:14 +00001906Changes
Paul Bakker4d2c1242012-05-10 14:12:46 +00001907 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker5b377842012-05-16 07:57:36 +00001908 * AES code only check for Padlock once
Paul Bakker6132d0a2012-07-04 17:10:40 +00001909 * Fixed const-correctness mpi_get_bit()
1910 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakkerec636f32012-09-09 19:17:02 +00001911 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker0a597072012-09-25 21:55:46 +00001912 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakkereb2c6582012-09-27 19:15:01 +00001913 to not match CN if subjectAltName extension is present (Closes ticket #56)
1914 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
Paul Bakker915275b2012-09-28 07:10:55 +00001915 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakker5c2364c2012-10-01 14:41:15 +00001916 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker645ce3a2012-10-31 12:32:41 +00001917 * Revamped session resumption handling
Paul Bakker1504af52012-02-11 16:17:43 +00001918 * Generalized external private key implementation handling (like PKCS#11)
Paul Bakker37824582012-03-22 14:10:22 +00001919 in SSL/TLS
Paul Bakker7beceb22012-03-22 14:19:49 +00001920 * Revamped x509_verify() and the SSL f_vrfy callback implementations
1921 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker430ffbe2012-05-01 08:14:20 +00001922 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker5b377842012-05-16 07:57:36 +00001923
Paul Bakkerf6198c12012-05-16 08:02:29 +00001924Bugfix
1925 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
Paul Bakkere6ee41f2012-05-19 08:43:48 +00001926 Hui Dong)
1927 * Fixed potential heap corruption in x509_name allocation
Paul Bakkercefb3962012-06-27 11:51:09 +00001928 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakker535e97d2012-08-23 10:49:55 +00001929 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00001930 #52)
Paul Bakker995a2152012-09-25 08:19:56 +00001931 * Handle encryption with private key and decryption with public key as per
Paul Bakkerb00ca422012-09-25 12:10:00 +00001932 RFC 2313
Paul Bakker4f024b72012-10-30 07:29:57 +00001933 * Handle empty certificate subject names
Paul Bakker37824582012-03-22 14:10:22 +00001934 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakker452d5322012-04-05 12:07:34 +00001935 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker3c16db92012-07-05 13:58:08 +00001936 with carry rollover (found by Ruslan Yushchenko)
1937 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker452d5322012-04-05 12:07:34 +00001938 * Fixed MPI assembly for SPARC64 platform
Paul Bakkerd5834bb2012-10-02 14:38:56 +00001939
1940Security
1941 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
1942 Vanderbeken)
1943
Paul Bakkerd93d28e2013-10-01 10:12:42 +02001944= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02001945Bugfix
1946 * Fixed potential memory leak when failing to resume a session
1947 * Fixed potential file descriptor leaks
1948
1949Security
1950 * Potential buffer-overflow for ssl_read_record() (independently found by
1951 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
1952 * Potential negative value misinterpretation in load_file()
1953 * Potential heap buffer overflow on large hostname setting
1954
Paul Bakker248fff52013-06-24 19:08:50 +02001955= Version 1.1.7 released on 2013-06-19
1956Changes
1957 * HAVEGE random generator disabled by default
1958
1959Bugfix
1960 * x509parse_crt() now better handles PEM error situations
1961 * ssl_parse_certificate() now calls x509parse_crt_der() directly
1962 instead of the x509parse_crt() wrapper that can also parse PEM
1963 certificates
1964 * Fixed values for 2-key Triple DES in cipher layer
1965 * ssl_write_certificate_request() can handle empty ca_chain
1966
1967Security
1968 * A possible DoS during the SSL Handshake, due to faulty parsing of
1969 PEM-encoded certificates has been fixed (found by Jack Lloyd)
1970
1971= Version 1.1.6 released on 2013-03-11
1972Bugfix
1973 * Fixed net_bind() for specified IP addresses on little endian systems
1974
1975Changes
1976 * Allow enabling of dummy error_strerror() to support some use-cases
1977 * Debug messages about padding errors during SSL message decryption are
1978 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
1979
1980Security
1981 * Removed timing differences during SSL message decryption in
1982 ssl_decrypt_buf()
1983 * Removed timing differences due to bad padding from
1984 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
1985 operations
1986
Paul Bakker9d2bb652013-01-25 16:07:49 +01001987= Version 1.1.5 released on 2013-01-16
1988Bugfix
1989 * Fixed MPI assembly for SPARC64 platform
1990 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
1991 * mpi_add_abs() now correctly handles adding short numbers to long numbers
1992 with carry rollover
1993 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
1994 * Prevent reading over buffer boundaries on X509 certificate parsing
1995 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
1996 #52)
1997 * Fixed possible segfault in mpi_shift_r() (found by Manuel
1998 Pégourié-Gonnard)
1999 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2000 Pégourié-Gonnard)
2001 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2002 * Memory leak when using RSA_PKCS_V21 operations fixed
2003 * Handle encryption with private key and decryption with public key as per
2004 RFC 2313
2005 * Fixes for MSVC6
2006
2007Security
2008 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2009 Vanderbeken)
2010
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002011= Version 1.1.4 released on 2012-05-31
2012Bugfix
2013 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2014 * Fixed potential heap corruption in x509_name allocation
2015 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2016
Paul Bakkerfad38932012-05-08 09:04:04 +00002017= Version 1.1.3 released on 2012-04-29
2018Bugfix
2019 * Fixed random MPI generation to not generate more size than requested.
2020
2021= Version 1.1.2 released on 2012-04-26
2022Bugfix
2023 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2024 Hui Dong)
2025
2026Security
2027 * Fixed potential memory corruption on miscrafted client messages (found by
2028 Frama-C team at CEA LIST)
2029 * Fixed generation of DHM parameters to correct length (found by Ruslan
2030 Yushchenko)
2031
Paul Bakker99955bf2012-01-23 09:31:41 +00002032= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002033Bugfix
2034 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2035 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002036 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002037 * Fixed multiple compiler warnings for VS6 and armcc
2038 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002039
Paul Bakker08a50882011-12-22 09:43:57 +00002040= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002041Features
2042 * Added ssl_session_reset() to allow better multi-connection pools of
2043 SSL contexts without needing to set all non-connection-specific
2044 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002045 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2046 supported version to a server to help buggy server implementations.
2047 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002048 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2049 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002050 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002051 * Added a generic entropy accumulator that provides support for adding
2052 custom entropy sources and added some generic and platform dependent
2053 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002054
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002055Changes
2056 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002057 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2058 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002059 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002060 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002061 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002062 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2063 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002064 * Changed the defined key-length of DES ciphers in cipher.h to include the
2065 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002066 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002067 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002068 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2069 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002070 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2071 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002072 * Changed the used random function pointer to more flexible format. Renamed
2073 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002074 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002075 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002076 * Added permissive certificate parsing to x509parse_crt() and
2077 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002078 encountering a parse-error. Beware that the meaning of return values has
2079 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002080 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002081
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002082Bugfix
2083 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2084 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002085 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2086 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002087 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2088 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002089 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2090 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002091 * If certificate serial is longer than 32 octets, serial number is now
2092 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002093 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002094 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002095 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002096 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002097
Paul Bakker968bc982011-07-27 17:03:00 +00002098= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002099Features
2100 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002101 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002102
Paul Bakker42e59812011-06-09 15:55:41 +00002103Changes
2104 * The generic cipher and message digest layer now have normal error
2105 codes instead of integers
2106
Paul Bakker887bd502011-06-08 13:10:54 +00002107Bugfix
2108 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2109 #18)
2110
Paul Bakker828acb22011-05-27 09:25:42 +00002111= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002112Features
2113 * Added additional Cipher Block Modes to symmetric ciphers
2114 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002115 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002116 * Functions requiring File System functions can now be disabled
2117 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002118 * A error_strerror function() has been added to translate between
2119 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002120 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2121 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002122 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002123
Paul Bakker23986e52011-04-24 08:57:21 +00002124Changes
2125 * Major argument / variable rewrite. Introduced use of size_t
2126 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002127 better unsigned / signed use. Renamed internal bigint types
2128 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002129 * mpi_init() and mpi_free() now only accept a single MPI
2130 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002131 * The error codes have been remapped and combining error codes
2132 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002133 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002134 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2135 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002136 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2137 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2138 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2139 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002140 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2141 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002142 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002143
Paul Bakker3efa5752011-04-01 12:23:26 +00002144= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002145Features
2146 * Added support for PKCS#1 v2.1 encoding and thus support
2147 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002148 * Reading of Public Key files incorporated into default x509
2149 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002150 * Added mpi_fill_random() for centralized filling of big numbers
2151 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002152
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002153Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002154 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002155 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002156 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002157 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002158 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002159
2160Bugfix
2161 * Debug output of MPI's now the same independent of underlying
2162 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002163 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002164 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2165 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002166 * Fixed proper handling of RSASSA-PSS verification with variable
2167 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002168
Paul Bakker345a6fe2011-02-28 21:20:02 +00002169= Version 0.99-pre3 released on 2011-02-28
2170This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002171Features
2172 * Parsing PEM private keys encrypted with DES and AES
2173 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002174 * Added crl_app program to allow easy reading and
2175 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00002176
2177Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002178 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00002179 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01002180 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00002181
Paul Bakker400ff6f2011-02-20 10:40:16 +00002182Bugfixes
2183 * Corrected parsing of UTCTime dates before 1990 and
2184 after 1950
2185 * Support more exotic OID's when parsing certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002186 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002187 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002188 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002189 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002190 * Do not bail out if no client certificate specified. Try
2191 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01002192 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002193
Paul Bakker345a6fe2011-02-28 21:20:02 +00002194Security fixes
2195 * Fixed a possible Man-in-the-Middle attack on the
2196 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01002197 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00002198
Paul Bakker9fc46592011-01-30 16:59:02 +00002199= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00002200Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00002201Note: Most of these features have been donated by Fox-IT
2202 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00002203 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00002204 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00002205 certificate fields, including Key Usage
2206 * Improved certificate verification and verification
2207 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00002208 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00002209 * Improvements to support integration in other
2210 applications:
2211 + Added generic message digest and cipher wrapper
2212 + Improved information about current capabilities,
2213 status, objects and configuration
2214 + Added verification callback on certificate chain
2215 verification to allow external blacklisting
Paul Bakker20a78082011-01-21 09:32:12 +00002216 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00002217 * Added support for PKCS#11 through the use of the
2218 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00002219
Paul Bakkerb6194992011-01-16 21:40:22 +00002220Changes
2221 * x509parse_time_expired() checks time in addition to
2222 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00002223 * The ciphers member of ssl_context and the cipher member
2224 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01002225 ciphersuite respectively. This clarifies the difference
2226 with the generic cipher layer and is better naming
2227 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00002228
Paul Bakker99ed6782011-01-05 14:48:42 +00002229= Version 0.14.0 released on 2010-08-16
2230Features
2231 * Added support for SSL_EDH_RSA_AES_128_SHA and
2232 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
2233 * Added compile-time and run-time version information
2234 * Expanded ssl_client2 arguments for more flexibility
2235 * Added support for TLS v1.1
2236
2237Changes
2238 * Made Makefile cleaner
2239 * Removed dependency on rand() in rsa_pkcs1_encrypt().
2240 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01002241 changed the prototype of rsa_pkcs1_encrypt(),
2242 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00002243 * Some SSL defines were renamed in order to avoid
2244 future confusion
2245
2246Bug fixes
2247 * Fixed CMake out of source build for tests (found by
2248 kkert)
2249 * rsa_check_private() now supports PKCS1v2 keys as well
2250 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
2251 generator
2252
2253= Version 0.13.1 released on 2010-03-24
2254Bug fixes
2255 * Fixed Makefile in library that was mistakenly merged
2256 * Added missing const string fixes
2257
2258= Version 0.13.0 released on 2010-03-21
2259Features
2260 * Added option parsing for host and port selection to
2261 ssl_client2
2262 * Added support for GeneralizedTime in X509 parsing
2263 * Added cert_app program to allow easy reading and
2264 printing of X509 certificates from file or SSL
2265 connection.
2266
2267Changes
2268 * Added const correctness for main code base
2269 * X509 signature algorithm determination is now
2270 in a function to allow easy future expansion
2271 * Changed symmetric cipher functions to
2272 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01002273 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00002274 * Added reset function for HMAC context as speed-up
2275 for specific use-cases
2276
2277Bug fixes
2278 * Fixed bug resulting in failure to send the last
2279 certificate in the chain in ssl_write_certificate() and
2280 ssl_write_certificate_request() (found by fatbob)
2281 * Added small fixes for compiler warnings on a Mac
2282 (found by Frank de Brabander)
2283 * Fixed algorithmic bug in mpi_is_prime() (found by
2284 Smbat Tonoyan)
2285
2286= Version 0.12.1 released on 2009-10-04
2287Changes
2288 * Coverage test definitions now support 'depends_on'
2289 tagging system.
2290 * Tests requiring specific hashing algorithms now honor
2291 the defines.
2292
2293Bug fixes
2294 * Changed typo in #ifdef in x509parse.c (found
2295 by Eduardo)
2296
2297= Version 0.12.0 released on 2009-07-28
2298Features
2299 * Added CMake makefiles as alternative to regular Makefiles.
2300 * Added preliminary Code Coverage tests for AES, ARC4,
2301 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
2302 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
2303 and X509parse.
2304
2305Changes
2306 * Error codes are not (necessarily) negative. Keep
2307 this is mind when checking for errors.
2308 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
2309 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
2310 * Changed interface for AES and Camellia setkey functions
2311 to indicate invalid key lengths.
2312
2313Bug fixes
2314 * Fixed include location of endian.h on FreeBSD (found by
2315 Gabriel)
2316 * Fixed include location of endian.h and name clash on
2317 Apples (found by Martin van Hensbergen)
2318 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
2319 required HMAC ipad and opad variables are not cleared.
2320 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01002321 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00002322 POLARSSL_HAVE_LONGLONG not defined (found by Giles
2323 Bathgate).
2324 * Fixed incorrect handling of negative strings in
2325 mpi_read_string() (found by code coverage tests).
2326 * Fixed segfault on handling empty rsa_context in
2327 rsa_check_pubkey() and rsa_check_privkey() (found by
2328 code coverage tests).
2329 * Fixed incorrect handling of one single negative input
2330 value in mpi_add_abs() (found by code coverage tests).
2331 * Fixed incorrect handling of negative first input
2332 value in mpi_sub_abs() (found by code coverage tests).
2333 * Fixed incorrect handling of negative first input
2334 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
2335 change also affects mpi_write_string() (found by code
2336 coverage tests).
2337 * Corrected is_prime() results for 0, 1 and 2 (found by
2338 code coverage tests).
2339 * Fixed Camellia and XTEA for 64-bit Windows systems.
2340
2341= Version 0.11.1 released on 2009-05-17
2342 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
2343 SHA-512 in rsa_pkcs1_sign()
2344
2345= Version 0.11.0 released on 2009-05-03
2346 * Fixed a bug in mpi_gcd() so that it also works when both
2347 input numbers are even and added testcases to check
2348 (found by Pierre Habouzit).
2349 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
2350 one way hash functions with the PKCS#1 v1.5 signing and
2351 verification.
2352 * Fixed minor bug regarding mpi_gcd located within the
2353 POLARSSL_GENPRIME block.
2354 * Fixed minor memory leak in x509parse_crt() and added better
2355 handling of 'full' certificate chains (found by Mathias
2356 Olsson).
2357 * Centralized file opening and reading for x509 files into
2358 load_file()
2359 * Made definition of net_htons() endian-clean for big endian
2360 systems (Found by Gernot).
2361 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01002362 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00002363 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
2364 responsible for crashes and unwanted behaviour.
2365 * Added support for Certificate Revocation List (CRL) parsing.
2366 * Added support for CRL revocation to x509parse_verify() and
2367 SSL/TLS code.
2368 * Fixed compatibility of XTEA and Camellia on a 64-bit system
2369 (found by Felix von Leitner).
2370
2371= Version 0.10.0 released on 2009-01-12
2372 * Migrated XySSL to PolarSSL
2373 * Added XTEA symmetric cipher
2374 * Added Camellia symmetric cipher
2375 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
2376 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
2377 * Fixed dangerous bug that can cause a heap overflow in
2378 rsa_pkcs1_decrypt (found by Christophe Devine)
2379
2380================================================================
2381XySSL ChangeLog
2382
2383= Version 0.9 released on 2008-03-16
2384
2385 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
2386 * Enabled support for large files by default in aescrypt2.c
2387 * Preliminary openssl wrapper contributed by David Barrett
2388 * Fixed a bug in ssl_write() that caused the same payload to
2389 be sent twice in non-blocking mode when send returns EAGAIN
2390 * Fixed ssl_parse_client_hello(): session id and challenge must
2391 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
2392 * Added user-defined callback debug function (Krystian Kolodziej)
2393 * Before freeing a certificate, properly zero out all cert. data
2394 * Fixed the "mode" parameter so that encryption/decryption are
2395 not swapped on PadLock; also fixed compilation on older versions
2396 of gcc (bug reported by David Barrett)
2397 * Correctly handle the case in padlock_xcryptcbc() when input or
2398 ouput data is non-aligned by falling back to the software
2399 implementation, as VIA Nehemiah cannot handle non-aligned buffers
2400 * Fixed a memory leak in x509parse_crt() which was reported by Greg
2401 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
2402 Matthew Page who reported several bugs
2403 * Fixed x509_get_ext() to accept some rare certificates which have
2404 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
2405 * Added support on the client side for the TLS "hostname" extension
2406 (patch contributed by David Patino)
2407 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
2408 string is passed as the CN (bug reported by spoofy)
2409 * Added an option to enable/disable the BN assembly code
2410 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
2411 * Disabled obsolete hash functions by default (MD2, MD4); updated
2412 selftest and benchmark to not test ciphers that have been disabled
2413 * Updated x509parse_cert_info() to correctly display byte 0 of the
2414 serial number, setup correct server port in the ssl client example
2415 * Fixed a critical denial-of-service with X.509 cert. verification:
2416 peer may cause xyssl to loop indefinitely by sending a certificate
2417 for which the RSA signature check fails (bug reported by Benoit)
2418 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
2419 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
2420 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
2421 * Modified ssl_parse_client_key_exchange() to protect against
2422 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
2423 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
2424 * Updated rsa_gen_key() so that ctx->N is always nbits in size
2425 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
2426 David Barrett and Dusan Semen
2427
2428= Version 0.8 released on 2007-10-20
2429
2430 * Modified the HMAC functions to handle keys larger
2431 than 64 bytes, thanks to Stephane Desneux and gary ng
2432 * Fixed ssl_read_record() to properly update the handshake
2433 message digests, which fixes IE6/IE7 client authentication
2434 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
2435 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
2436 * Added user-defined callbacks for handling I/O and sessions
2437 * Added lots of debugging output in the SSL/TLS functions
2438 * Added preliminary X.509 cert. writing by Pascal Vizeli
2439 * Added preliminary support for the VIA PadLock routines
2440 * Added AES-CFB mode of operation, contributed by chmike
2441 * Added an SSL/TLS stress testing program (ssl_test.c)
2442 * Updated the RSA PKCS#1 code to allow choosing between
2443 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
2444 * Updated ssl_read() to skip 0-length records from OpenSSL
2445 * Fixed the make install target to comply with *BSD make
2446 * Fixed a bug in mpi_read_binary() on 64-bit platforms
2447 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
2448 * Fixed a long standing memory leak in mpi_is_prime()
2449 * Replaced realloc with malloc in mpi_grow(), and set
2450 the sign of zero as positive in mpi_init() (reported
2451 by Jonathan M. McCune)
2452
2453= Version 0.7 released on 2007-07-07
2454
2455 * Added support for the MicroBlaze soft-core processor
2456 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
2457 connections from being established with non-blocking I/O
2458 * Fixed a couple bugs in the VS6 and UNIX Makefiles
2459 * Fixed the "PIC register ebx clobbered in asm" bug
2460 * Added HMAC starts/update/finish support functions
2461 * Added the SHA-224, SHA-384 and SHA-512 hash functions
2462 * Fixed the net_set_*block routines, thanks to Andreas
2463 * Added a few demonstration programs: md5sum, sha1sum,
2464 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
2465 * Added new bignum import and export helper functions
2466 * Rewrote README.txt in program/ssl/ca to better explain
2467 how to create a test PKI
2468
2469= Version 0.6 released on 2007-04-01
2470
2471 * Ciphers used in SSL/TLS can now be disabled at compile
2472 time, to reduce the memory footprint on embedded systems
2473 * Added multiply assembly code for the TriCore and modified
2474 havege_struct for this processor, thanks to David Patiño
2475 * Added multiply assembly code for 64-bit PowerPCs,
2476 thanks to Peking University and the OSU Open Source Lab
2477 * Added experimental support of Quantum Cryptography
2478 * Added support for autoconf, contributed by Arnaud Cornet
2479 * Fixed "long long" compilation issues on IA-64 and PPC64
2480 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
2481 was not being correctly defined on ARM and MIPS
2482
2483= Version 0.5 released on 2007-03-01
2484
2485 * Added multiply assembly code for SPARC and Alpha
2486 * Added (beta) support for non-blocking I/O operations
2487 * Implemented session resuming and client authentication
2488 * Fixed some portability issues on WinCE, MINIX 3, Plan9
2489 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
2490 * Improved the performance of the EDH key exchange
2491 * Fixed a bug that caused valid packets with a payload
2492 size of 16384 bytes to be rejected
2493
2494= Version 0.4 released on 2007-02-01
2495
2496 * Added support for Ephemeral Diffie-Hellman key exchange
2497 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
2498 * Various improvement to the modular exponentiation code
2499 * Rewrote the headers to generate the API docs with doxygen
2500 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
2501 generated) and in ssl_parse_client_hello (max. client
2502 version was not properly set), thanks to Didier Rebeix
2503 * Fixed another bug in ssl_parse_client_hello: clients with
2504 cipherlists larger than 96 bytes were incorrectly rejected
2505 * Fixed a couple memory leak in x509_read.c
2506
2507= Version 0.3 released on 2007-01-01
2508
2509 * Added server-side SSLv3 and TLSv1.0 support
2510 * Multiple fixes to enhance the compatibility with g++,
2511 thanks to Xosé Antón Otero Ferreira
2512 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01002513 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00002514 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
2515 * Updated timing.c for improved compatibility with i386
2516 and 486 processors, thanks to Arnaud Cornet
2517
2518= Version 0.2 released on 2006-12-01
2519
2520 * Updated timing.c to support ARM and MIPS arch
2521 * Updated the MPI code to support 8086 on MSVC 1.5
2522 * Added the copyright notice at the top of havege.h
2523 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
2524 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
2525 * Fixed a bug reported by Torsten Lauter in ssl_read_record
2526 * Fixed a bug in rsa_check_privkey that would wrongly cause
2527 valid RSA keys to be dismissed (thanks to oldwolf)
2528 * Fixed a bug in mpi_is_prime that caused some primes to fail
2529 the Miller-Rabin primality test
2530
2531 I'd also like to thank Younès Hafri for the CRUX linux port,
2532 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
2533 who maintains the Debian package :-)
2534
2535= Version 0.1 released on 2006-11-01