blob: 978b8b5cdd4b4e72e09295e797ff1de2b2fa5c9f [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
Darryl Green955db7e2019-01-07 13:05:37 +00003= mbed TLS 2.x.x branch released xxxx-xx-xx
4
Gilles Peskine661610c2018-11-07 22:39:16 +01005Security
6 * Make mbedtls_ecdh_get_params return an error if the second key
7 belongs to a different group from the first. Before, if an application
8 passed keys that belonged to different group, the first key's data was
9 interpreted according to the second group, which could lead to either
10 an error or a meaningless output from mbedtls_ecdh_get_params. In the
11 latter case, this could expose at most 5 bits of the private key.
12
Jaeden Amerof2357f82019-03-26 15:27:56 +000013Bugfix
14 * Server's RSA certificate in certs.c was SHA-1 signed. In the default
15 mbedTLS configuration only SHA-2 signed certificates are accepted.
16 This certificate is used in the demo server programs, which lead the
17 client programs to fail at the peer's certificate verification
18 due to an unacceptable hash signature. The certificate has been
19 updated to one that is SHA-256 signed. Fix contributed by
20 Illya Gerasymchuk.
21 * Fix private key DER output in the key_app_writer example. File contents
22 were shifted by one byte, creating an invalid ASN.1 tag. Fixed by
23 Christian Walther in #2239.
Jaeden Amero749c9442019-04-05 13:48:45 +010024 * Fix potential memory leak in X.509 self test. Found and fixed by
25 Junhwan Park, #2106.
Jaeden Amero9bfcebf2019-04-05 13:53:22 +010026 * Reduce stack usage of hkdf tests. Fixes #2195.
Jaeden Amero77027352019-04-05 14:10:02 +010027 * Fix 1-byte buffer overflow in mbedtls_mpi_write_string() when
Jaeden Ameroda6a3c42019-04-08 11:23:50 +010028 used with negative inputs. Found by Guido Vranken in #2404. Credit to
29 OSS-Fuzz.
Jaeden Amerof41fa482019-04-05 14:17:47 +010030 * Fix bugs in the AEAD test suite which would be exposed by ciphers which
31 either used both encrypt and decrypt key schedules, or which perform padding.
32 GCM and CCM were not affected. Fixed by Jack Lloyd.
Jaeden Amero0ea24a92019-04-05 14:26:20 +010033 * Fix incorrect default port number in ssl_mail_client example's usage.
34 Found and fixed by irwir. #2337
Jaeden Amerof2357f82019-03-26 15:27:56 +000035
36Changes
37 * Return from various debugging routines immediately if the
38 provided SSL context is unset.
39 * Remove dead code from bignum.c in the default configuration.
40 Found by Coverity, reported and fixed by Peter Kolbus (Garmin). Fixes #2309.
41 * Add test for minimal value of MBEDTLS_MPI_WINDOW_SIZE to all.sh.
42 Contributed by Peter Kolbus (Garmin).
43
Jaeden Amero9f4f8ee2019-03-19 16:16:12 +000044= mbed TLS 2.16.1 branch released 2019-03-19
Darryl Green955db7e2019-01-07 13:05:37 +000045
Andres Amaya Garcia5d8aade2018-10-30 18:21:41 +000046Features
47 * Add MBEDTLS_REMOVE_3DES_CIPHERSUITES to allow removing 3DES ciphersuites
Andres Amaya Garcia6882ec12018-11-26 20:57:49 +000048 from the default list (enabled by default). See
49 https://sweet32.info/SWEET32_CCS16.pdf.
Andres Amaya Garcia5d8aade2018-10-30 18:21:41 +000050
Darryl Green955db7e2019-01-07 13:05:37 +000051Bugfix
52 * Fix a compilation issue with mbedtls_ecp_restart_ctx not being defined
53 when MBEDTLS_ECP_ALT is defined. Reported by jwhui. Fixes #2242.
Ron Eldor822b8342018-11-25 10:38:34 +020054 * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined.
55 Raised as a comment in #1996.
Hanno Becker8116ef72018-10-25 12:42:08 +010056 * Reduce the stack consumption of mbedtls_mpi_fill_random() which could
57 previously lead to a stack overflow on constrained targets.
Simon Butcher874b6042019-01-08 16:34:19 +000058 * Add `MBEDTLS_SELF_TEST` for the mbedtls_self_test functions
59 in the header files, which missed the precompilation check. #971
Jeffrey Martin60269ee2019-01-15 09:03:24 -060060 * Fix clobber list in MIPS assembly for large integer multiplication.
61 Previously, this could lead to functionally incorrect assembly being
62 produced by some optimizing compilers, showing up as failures in
63 e.g. RSA or ECC signature operations. Reported in #1722, fix suggested
Jeffrey Martin55a23e42019-01-16 09:27:11 -060064 by Aurelien Jarno and submitted by Jeffrey Martin.
Hanno Becker47da6df2019-01-10 09:22:16 +000065 * Fix signed-to-unsigned integer conversion warning
66 in X.509 module. Fixes #2212.
Ron Eldor8a6917d2018-11-27 10:33:38 +020067 * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
68 Fixes #2190.
Masashi Honmafbda6122018-12-28 05:40:17 +090069 * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326.
amisare5c0b5b52019-01-04 08:15:46 +080070 * Remove the mbedtls namespacing from the header file, to fix a "file not found"
71 build error. Fixed by Haijun Gu #2319.
Ron Eldor5351afa2018-12-17 10:12:55 +020072 * Fix returning the value 1 when mbedtls_ecdsa_genkey failed.
Peter Kolbus494ac012019-02-03 08:41:41 -060073 * Fix false failure in all.sh when backup files exist in include/mbedtls
74 (e.g. config.h.bak). Fixed by Peter Kolbus (Garmin) #2407.
Andres Amaya Garciab5eb21a2018-09-26 10:59:20 +010075 * Ensure that unused bits are zero when writing ASN.1 bitstrings when using
76 mbedtls_asn1_write_bitstring().
77 * Fix issue when writing the named bitstrings in KeyUsage and NsCertType
78 extensions in CSRs and CRTs that caused these bitstrings to not be encoded
79 correctly as trailing zeroes were not accounted for as unused bits in the
80 leading content octet. Fixes #1610.
Darryl Green955db7e2019-01-07 13:05:37 +000081
Jaeden Amerof0f8c092019-01-30 16:09:08 +000082Changes
83 * Include configuration file in all header files that use configuration,
84 instead of relying on other header files that they include.
85 Inserted as an enhancement for #1371
Jaeden Amero9fc7af02019-01-30 16:17:22 +000086 * Add support for alternative CSR headers, as used by Microsoft and defined
87 in RFC 7468. Found by Michael Ernst. Fixes #767.
Andres Amaya Garciad4d55962018-10-16 22:18:53 +010088 * Fix configuration queries in ssl-opt.h. #2030
89 * Ensure that ssl-opt.h can be run in OS X. #2029
k-stachowiak73a8a0f2019-02-05 10:04:54 +010090 * Reduce the complexity of the timing tests. They were assuming more than the
91 underlying OS actually guarantees.
k-stachowiakb4595d22019-02-19 12:41:30 +010092 * Re-enable certain interoperability tests in ssl-opt.sh which had previously
93 been disabled for lack of a sufficiently recent version of GnuTLS on the CI.
Andres Amaya Garcia03afdc02019-02-19 20:14:00 +000094 * Ciphersuites based on 3DES now have the lowest priority by default when
95 they are enabled.
Jaeden Amerof0f8c092019-01-30 16:09:08 +000096
Simon Butcher6c164e72018-12-21 10:51:51 +000097= mbed TLS 2.16.0 branch released 2018-12-21
Gilles Peskineddffa062018-10-03 13:40:16 +020098
Manuel Pégourié-Gonnard8a46c222018-12-11 10:46:41 +010099Features
Manuel Pégourié-Gonnard97940982018-12-17 13:13:50 +0100100 * Add a new config.h option of MBEDTLS_CHECK_PARAMS that enables validation
101 of parameters in the API. This allows detection of obvious misuses of the
102 API, such as passing NULL pointers. The API of existing functions hasn't
103 changed, but requirements on parameters have been made more explicit in
104 the documentation. See the corresponding API documentation for each
105 function to see for which parameter values it is defined. This feature is
106 disabled by default. See its API documentation in config.h for additional
107 steps you have to take when enabling it.
Gilles Peskine5da05052018-09-11 18:59:55 +0200108
Manuel Pégourié-Gonnard12dce612018-12-13 09:48:40 +0100109API Changes
110 * The following functions in the random generator modules have been
111 deprecated and replaced as shown below. The new functions change
112 the return type from void to int to allow returning error codes when
113 using MBEDTLS_<MODULE>_ALT for the underlying AES or message digest
114 primitive. Fixes #1798.
115 mbedtls_ctr_drbg_update() -> mbedtls_ctr_drbg_update_ret()
116 mbedtls_hmac_drbg_update() -> mbedtls_hmac_drbg_update_ret()
117 * Extend ECDH interface to enable alternative implementations.
Simon Butchere0460532018-12-20 16:17:02 +0000118 * Deprecate error codes of the form MBEDTLS_ERR_xxx_INVALID_KEY_LENGTH for
119 ARIA, CAMELLIA and Blowfish. These error codes will be replaced by
120 the more generic per-module error codes MBEDTLS_ERR_xxx_BAD_INPUT_DATA.
121 * Additional parameter validation checks have been added for the following
122 modules - AES, ARIA, Blowfish, CAMELLIA, CCM, GCM, DHM, ECP, ECDSA, ECDH,
123 ECJPAKE, SHA, Chacha20 and Poly1305, cipher, pk, RSA, and MPI.
124 Where modules have had parameter validation added, existing parameter
125 checks may have changed. Some modules, such as Chacha20 had existing
126 parameter validation whereas other modules had little. This has now been
127 changed so that the same level of validation is present in all modules, and
128 that it is now optional with the MBEDTLS_CHECK_PARAMS flag which by default
129 is off. That means that checks which were previously present by default
130 will no longer be.
Manuel Pégourié-Gonnard12dce612018-12-13 09:48:40 +0100131
Gilles Peskine5da05052018-09-11 18:59:55 +0200132New deprecations
133 * Deprecate mbedtls_ctr_drbg_update and mbedtls_hmac_drbg_update
134 in favor of functions that can return an error code.
Gilles Peskineddffa062018-10-03 13:40:16 +0200135
Simon Butcherb3633822018-07-30 22:10:48 +0100136Bugfix
Simon Butcherdf0500d2018-09-30 12:27:26 +0100137 * Fix for Clang, which was reporting a warning for the bignum.c inline
138 assembly for AMD64 targets creating string literals greater than those
139 permitted by the ISO C99 standard. Found by Aaron Jones. Fixes #482.
Hanno Becker5e0924c2018-10-18 12:11:54 +0100140 * Fix runtime error in `mbedtls_platform_entropy_poll()` when run
141 through qemu user emulation. Reported and fix suggested by randombit
142 in #1212. Fixes #1212.
Hanno Beckera7d2fa72018-10-24 13:41:43 +0100143 * Fix an unsafe bounds check when restoring an SSL session from a ticket.
144 This could lead to a buffer overflow, but only in case ticket authentication
145 was broken. Reported and fix suggested by Guido Vranken in #659.
Jaeden Amero9055a7d2018-12-06 16:09:58 +0000146 * Add explicit integer to enumeration type casts to example program
147 programs/pkey/gen_key which previously led to compilation failure
148 on some toolchains. Reported by phoenixmcallister. Fixes #2170.
Janos Follath855def12018-12-07 10:04:17 +0000149 * Fix double initialization of ECC hardware that made some accelerators
150 hang.
Simon Butcher6df8c532018-12-20 12:34:44 +0000151 * Clarify documentation of mbedtls_ssl_set_own_cert() regarding the absence
152 of check for certificate/key matching. Reported by Attila Molnar, #507.
Simon Butcherc86993e2018-09-27 09:48:54 +0100153
Simon Butchere0460532018-12-20 16:17:02 +0000154= mbed TLS 2.14.1 branch released 2018-11-30
155
156Security
157 * Fix timing variations and memory access variations in RSA PKCS#1 v1.5
158 decryption that could lead to a Bleichenbacher-style padding oracle
159 attack. In TLS, this affects servers that accept ciphersuites based on
160 RSA decryption (i.e. ciphersuites whose name contains RSA but not
161 (EC)DH(E)). Discovered by Eyal Ronen (Weizmann Institute), Robert Gillham
162 (University of Adelaide), Daniel Genkin (University of Michigan),
163 Adi Shamir (Weizmann Institute), David Wong (NCC Group), and Yuval Yarom
164 (University of Adelaide, Data61). The attack is described in more detail
165 in the paper available here: http://cat.eyalro.net/cat.pdf CVE-2018-19608
166 * In mbedtls_mpi_write_binary(), don't leak the exact size of the number
167 via branching and memory access patterns. An attacker who could submit
168 a plaintext for RSA PKCS#1 v1.5 decryption but only observe the timing
169 of the decryption and not its result could nonetheless decrypt RSA
170 plaintexts and forge RSA signatures. Other asymmetric algorithms may
171 have been similarly vulnerable. Reported by Eyal Ronen, Robert Gillham,
172 Daniel Genkin, Adi Shamir, David Wong and Yuval Yarom.
173 * Wipe sensitive buffers on the stack in the CTR_DRBG and HMAC_DRBG
174 modules.
175
176API Changes
177 * The new functions mbedtls_ctr_drbg_update_ret() and
178 mbedtls_hmac_drbg_update_ret() are similar to mbedtls_ctr_drbg_update()
179 and mbedtls_hmac_drbg_update() respectively, but the new functions
180 report errors whereas the old functions return void. We recommend that
181 applications use the new functions.
182
Simon Butcherc1b98922018-11-19 18:31:40 +0000183= mbed TLS 2.14.0 branch released 2018-11-19
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200184
Hanno Beckerd3445da2018-11-02 09:36:45 +0000185Security
Simon Butcher681edee2018-11-07 16:25:38 +0000186 * Fix overly strict DN comparison when looking for CRLs belonging to a
Simon Butcherb35e59d2018-11-19 15:49:26 +0000187 particular CA. This previously led to ignoring CRLs when the CRL's issuer
Simon Butcher681edee2018-11-07 16:25:38 +0000188 name and the CA's subject name differed in their string encoding (e.g.,
189 one using PrintableString and the other UTF8String) or in the choice of
190 upper and lower case. Reported by Henrik Andersson of Bosch GmbH in issue
191 #1784.
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100192 * Fix a flawed bounds check in server PSK hint parsing. In case the
Simon Butcherb35e59d2018-11-19 15:49:26 +0000193 incoming message buffer was placed within the first 64KiB of address
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100194 space and a PSK-(EC)DHE ciphersuite was used, this allowed an attacker
Simon Butcherb35e59d2018-11-19 15:49:26 +0000195 to trigger a memory access up to 64KiB beyond the incoming message buffer,
196 potentially leading to an application crash or information disclosure.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100197 * Fix mbedtls_mpi_is_prime() to use more rounds of probabilistic testing. The
198 previous settings for the number of rounds made it practical for an
199 adversary to construct non-primes that would be erroneously accepted as
200 primes with high probability. This does not have an impact on the
Simon Butcher681edee2018-11-07 16:25:38 +0000201 security of TLS, but can matter in other contexts with numbers chosen
202 potentially by an adversary that should be prime and can be validated.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100203 For example, the number of rounds was enough to securely generate RSA key
204 pairs or Diffie-Hellman parameters, but was insufficient to validate
205 Diffie-Hellman parameters properly.
206 See "Prime and Prejudice" by by Martin R. Albrecht and Jake Massimo and
207 Kenneth G. Paterson and Juraj Somorovsky.
Hanno Beckerd3445da2018-11-02 09:36:45 +0000208
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200209Features
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200210 * Add support for temporarily suspending expensive ECC computations after
Simon Butcherb35e59d2018-11-19 15:49:26 +0000211 some configurable amount of operations. This is intended to be used in
212 constrained, single-threaded systems where ECC is time consuming and can
213 block other operations until they complete. This is disabled by default,
214 but can be enabled by MBEDTLS_ECP_RESTARTABLE at compile time and
215 configured by mbedtls_ecp_set_max_ops() at runtime. It applies to the new
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200216 xxx_restartable functions in ECP, ECDSA, PK and X.509 (CRL not supported
217 yet), and to existing functions in ECDH and SSL (currently only
218 implemented client-side, for ECDHE-ECDSA ciphersuites in TLS 1.2,
219 including client authentication).
Simon Butcher4a865ef2018-10-28 18:00:51 +0000220 * Add support for Arm CPU DSP extensions to accelerate asymmetric key
221 operations. On CPUs where the extensions are available, they can accelerate
222 MPI multiplications used in ECC and RSA cryptography. Contributed by
223 Aurelien Jarno.
Simon Butcherb35e59d2018-11-19 15:49:26 +0000224 * Extend RSASSA-PSS signature to allow a smaller salt size. Previously, PSS
225 signature always used a salt with the same length as the hash, and returned
226 an error if this was not possible. Now the salt size may be up to two bytes
227 shorter. This allows the library to support all hash and signature sizes
228 that comply with FIPS 186-4, including SHA-512 with a 1024-bit key.
Simon Butcher06d80cf2018-11-06 23:46:04 +0000229 * Add support for 128-bit keys in CTR_DRBG. Note that using keys shorter
230 than 256 bits limits the security of generated material to 128 bits.
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +0200231
Simon Butchere51d4b32018-11-09 19:57:53 +0000232API Changes
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000233 * Add a common error code of `MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED` for
234 a feature that is not supported by underlying alternative
235 implementations implementing cryptographic primitives. This is useful for
236 hardware accelerators that don't implement all options or features.
Simon Butchere51d4b32018-11-09 19:57:53 +0000237
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300238New deprecations
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000239 * All module specific errors following the form
240 MBEDTLS_ERR_XXX_FEATURE_UNAVAILABLE that indicate a feature is not
241 supported are deprecated and are now replaced by the new equivalent
242 platform error.
Simon Butcher681edee2018-11-07 16:25:38 +0000243 * All module specific generic hardware acceleration errors following the
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000244 form MBEDTLS_ERR_XXX_HW_ACCEL_FAILED that are deprecated and are replaced
245 by the equivalent plaform error.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100246 * Deprecate the function mbedtls_mpi_is_prime() in favor of
247 mbedtls_mpi_is_prime_ext() which allows specifying the number of
248 Miller-Rabin rounds.
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300249
Simon Butcherb3633822018-07-30 22:10:48 +0100250Bugfix
Simon Butcher2b5be1e2018-10-30 15:55:10 +0000251 * Fix wrong order of freeing in programs/ssl/ssl_server2 example
252 application leading to a memory leak in case both
253 MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set.
254 Fixes #2069.
Simon Butcherc86993e2018-09-27 09:48:54 +0100255 * Fix a bug in the update function for SSL ticket keys which previously
256 invalidated keys of a lifetime of less than a 1s. Fixes #1968.
257 * Fix failure in hmac_drbg in the benchmark sample application, when
258 MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
Hanno Beckerf24c3362018-10-17 14:53:05 +0100259 * Fix a bug in the record decryption routine ssl_decrypt_buf()
260 which lead to accepting properly authenticated but improperly
261 padded records in case of CBC ciphersuites using Encrypt-then-MAC.
Hanno Becker617a3212018-10-05 09:51:36 +0100262 * Fix memory leak and freeing without initialization in the example
263 program programs/x509/cert_write. Fixes #1422.
Simon Butcher681edee2018-11-07 16:25:38 +0000264 * Ignore IV in mbedtls_cipher_set_iv() when the cipher mode is
265 MBEDTLS_MODE_ECB. Found by ezdevelop. Fixes #1091.
Hanno Becker7e1f3be2018-10-15 13:20:28 +0100266 * Zeroize memory used for buffering or reassembling handshake messages
267 after use.
268 * Use `mbedtls_platform_zeroize()` instead of `memset()` for zeroization
269 of sensitive data in the example programs aescrypt2 and crypt_and_hash.
Hanno Beckerf143a782018-11-06 17:43:16 +0000270 * Change the default string format used for various X.509 DN attributes to
271 UTF8String. Previously, the use of the PrintableString format led to
272 wildcards and non-ASCII characters being unusable in some DN attributes.
Simon Butcher681edee2018-11-07 16:25:38 +0000273 Reported by raprepo in #1860 and by kevinpt in #468. Fix contributed by
274 Thomas-Dee.
Hanno Beckere4f965d2018-10-11 10:54:45 +0100275 * Fix compilation failure for configurations which use compile time
276 replacements of standard calloc/free functions through the macros
277 MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO.
278 Reported by ole-de and ddhome2006. Fixes #882, #1642 and #1706.
Simon Butcherc86993e2018-09-27 09:48:54 +0100279
280Changes
Simon Butcherc0514bf2018-09-26 18:07:18 +0100281 * Removed support for Yotta as a build tool.
Simon Butcherc86993e2018-09-27 09:48:54 +0100282 * Add tests for session resumption in DTLS.
Gilles Peskine604ccc62018-07-10 15:55:52 +0200283 * Close a test gap in (D)TLS between the client side and the server side:
284 test the handling of large packets and small packets on the client side
285 in the same way as on the server side.
Simon Butcherddc9e262018-10-27 18:27:41 +0100286 * Change the dtls_client and dtls_server samples to work by default over
287 IPv6 and optionally by a build option over IPv4.
Simon Butcher404aa652018-10-01 14:44:22 +0100288 * Change the use of Windows threading to use Microsoft Visual C++ runtime
289 calls, rather than Win32 API calls directly. This is necessary to avoid
290 conflict with C runtime usage. Found and fixed by irwir.
Simon Butcher681edee2018-11-07 16:25:38 +0000291 * Remember the string format of X.509 DN attributes when replicating
292 X.509 DNs. Previously, DN attributes were always written in their default
293 string format (mostly PrintableString), which could lead to CRTs being
294 created which used PrintableStrings in the issuer field even though the
295 signing CA used UTF8Strings in its subject field; while X.509 compliant,
296 such CRTs were rejected in some applications, e.g. some versions of
297 Firefox, curl and GnuTLS. Reported in #1033 by Moschn. Fix contributed by
298 Thomas-Dee.
Hanno Becker0bb204c2018-10-30 10:08:33 +0000299 * Improve documentation of mbedtls_ssl_get_verify_result().
300 Fixes #517 reported by github-monoculture.
Janos Follath33329372018-09-06 10:41:33 +0100301 * Add MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR flag to mbedtls_mpi_gen_prime() and
302 use it to reduce error probability in RSA key generation to levels mandated
303 by FIPS-186-4.
Simon Butcherc86993e2018-09-27 09:48:54 +0100304
Simon Butcher5d40f672018-09-06 16:24:48 +0100305= mbed TLS 2.13.1 branch released 2018-09-06
Simon Butcherb3633822018-07-30 22:10:48 +0100306
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100307API Changes
Hanno Beckeracef2922018-09-05 16:19:07 +0100308 * Extend the platform module with an abstraction mbedtls_platform_gmtime_r()
Hanno Becker921b76d2018-09-05 16:21:36 +0100309 whose implementation should behave as a thread-safe version of gmtime().
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100310 This allows users to configure such an implementation at compile time when
Hanno Beckeracef2922018-09-05 16:19:07 +0100311 the target system cannot be deduced automatically, by setting the option
312 MBEDTLS_PLATFORM_GMTIME_R_ALT. At this stage Mbed TLS is only able to
313 automatically select implementations for Windows and POSIX C libraries.
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100314
Simon Butcherb3633822018-07-30 22:10:48 +0100315Bugfix
Andres Amaya Garcia8c9a6202018-09-05 11:30:28 +0100316 * Fix build failures on platforms where only gmtime() is available but
317 neither gmtime_r() nor gmtime_s() are present. Fixes #1907.
Simon Butcherb3633822018-07-30 22:10:48 +0100318
Simon Butcher4d075cd2018-08-31 15:59:10 +0100319= mbed TLS 2.13.0 branch released 2018-08-31
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100320
k-stachowiak21feae52018-07-09 14:42:35 +0200321Security
k-stachowiak6ca436a2018-07-16 12:20:10 +0200322 * Fix an issue in the X.509 module which could lead to a buffer overread
323 during certificate extensions parsing. In case of receiving malformed
324 input (extensions length field equal to 0), an illegal read of one byte
325 beyond the input buffer is made. Found and analyzed by Nathan Crandall.
k-stachowiak21feae52018-07-09 14:42:35 +0200326
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200327Features
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200328 * Add support for fragmentation of outgoing DTLS handshake messages. This
329 is controlled by the maximum fragment length as set locally or negotiated
Manuel Pégourié-Gonnardf2f1d402018-08-21 09:53:22 +0200330 with the peer, as well as by a new per-connection MTU option, set using
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200331 mbedtls_ssl_set_mtu().
Manuel Pégourié-Gonnardb8eec192018-08-20 09:34:02 +0200332 * Add support for auto-adjustment of MTU to a safe value during the
333 handshake when flights do not get through (RFC 6347, section 4.1.1.1,
334 last paragraph).
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100335 * Add support for packing multiple records within a single datagram,
336 enabled by default.
Hanno Becker02f6f5a2018-08-28 12:54:27 +0100337 * Add support for buffering out-of-order handshake messages in DTLS.
Hanno Beckeraa249372018-08-22 10:27:13 +0100338 The maximum amount of RAM used for this can be controlled by the
339 compile-time constant MBEDTLS_SSL_DTLS_MAX_BUFFERING defined
340 in mbedtls/config.h.
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100341
342API Changes
Hanno Becker1841b0a2018-08-24 11:13:57 +0100343 * Add function mbedtls_ssl_set_datagram_packing() to configure
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100344 the use of datagram packing (enabled by default).
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200345
Gilles Peskine104d8582018-06-27 10:57:33 +0200346Bugfix
Simon Butcherb5afb972018-08-31 11:59:56 +0100347 * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation
348 failure in the function could lead to other buffers being leaked.
Gilles Peskine104d8582018-06-27 10:57:33 +0200349 * Fixes an issue with MBEDTLS_CHACHAPOLY_C which would not compile if
350 MBEDTLS_ARC4_C and MBEDTLS_CIPHER_NULL_CIPHER weren't also defined. #1890
Jaeden Amerof48163a2018-08-10 10:49:10 +0100351 * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails.
352 Fix contributed by Espressif Systems.
Ron Eldor3f38cf72018-06-21 16:40:24 +0300353 * Add ecc extensions only if an ecc based ciphersuite is used.
Ron Eldor84e62f82018-06-28 11:09:09 +0300354 This improves compliance to RFC 4492, and as a result, solves
355 interoperability issues with BouncyCastle. Raised by milenamil in #1157.
Simon Butcherb5afb972018-08-31 11:59:56 +0100356 * Replace printf with mbedtls_printf in the ARIA module. Found by
357 TrinityTonic in #1908.
Hanno Becker9dc3be72018-08-14 15:22:05 +0100358 * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len()
Hanno Becker361f2542018-08-13 16:36:58 +0100359 and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941.
Hanno Beckereb2b15a2018-08-17 09:47:22 +0100360 * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake
361 with TLS versions 1.1 and earlier when the server requested authentication
362 without providing a list of CAs. This was due to an overly strict bounds
363 check in parsing the CertificateRequest message,
364 introduced in Mbed TLS 2.12.0. Fixes #1954.
Hanno Becker44814642018-08-03 09:53:48 +0100365 * Fix a miscalculation of the maximum record expansion in
366 mbedtls_ssl_get_record_expansion() in case of ChachaPoly ciphersuites,
367 or CBC ciphersuites in (D)TLS versions 1.1 or higher. Fixes #1913, #1914.
Simon Butcherb5afb972018-08-31 11:59:56 +0100368 * Fix undefined shifts with negative values in certificates parsing
369 (found by Catena cyber using oss-fuzz)
Hanno Beckera70fb952017-10-08 16:13:03 +0100370 * Fix memory leak and free without initialization in pk_encrypt
371 and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128.
Simon Butcherb5afb972018-08-31 11:59:56 +0100372 * Remove redundant else statement. Raised by irwir. Fixes #1776.
Gilles Peskine104d8582018-06-27 10:57:33 +0200373
Jaeden Amero372b50b2018-08-10 10:56:31 +0100374Changes
375 * Copy headers preserving timestamps when doing a "make install".
376 Contributed by xueruini.
Jaeden Amero03bd4842018-08-10 11:17:14 +0100377 * Allow the forward declaration of public structs. Contributed by Dawid
378 Drozd. Fixes #1215 raised by randombit.
Jaeden Amerod8f416982018-08-10 11:23:15 +0100379 * Improve compatibility with some alternative CCM implementations by using
380 CCM test vectors from RAM.
Hanno Beckerf1035422018-08-16 16:07:27 +0100381 * Add support for buffering of out-of-order handshake messages.
Janos Follath08a4aeb2018-08-06 14:20:15 +0100382 * Add warnings to the documentation of the HKDF module to reduce the risk
383 of misusing the mbedtls_hkdf_extract() and mbedtls_hkdf_expand()
384 functions. Fixes #1775. Reported by Brian J. Murray.
385
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100386= mbed TLS 2.12.0 branch released 2018-07-25
387
Gilles Peskine104d8582018-06-27 10:57:33 +0200388Security
389 * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384,
390 in (D)TLS 1.0 to 1.2, that allowed an active network attacker to
391 partially recover the plaintext of messages under some conditions by
392 exploiting timing measurements. With DTLS, the attacker could perform
393 this recovery by sending many messages in the same connection. With TLS
394 or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only
395 worked if the same secret (for example a HTTP Cookie) has been repeatedly
396 sent over connections manipulated by the attacker. Connections using GCM
397 or CCM instead of CBC, using hash sizes other than SHA-384, or using
398 Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was
399 caused by a miscalculation (for SHA-384) in a countermeasure to the
400 original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi
401 Shamir.
Manuel Pégourié-Gonnard1cc1fb02018-06-28 12:10:27 +0200402 * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to
403 1.2, that allowed a local attacker, able to execute code on the local
404 machine as well as manipulate network packets, to partially recover the
Manuel Pégourié-Gonnard830ce112018-07-11 18:27:08 +0200405 plaintext of messages under some conditions by using a cache attack
406 targetting an internal MD/SHA buffer. With TLS or if
407 mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if
408 the same secret (for example a HTTP Cookie) has been repeatedly sent over
409 connections manipulated by the attacker. Connections using GCM or CCM
410 instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected.
411 Found by Kenny Paterson, Eyal Ronen and Adi Shamir.
Manuel Pégourié-Gonnard7b420302018-06-28 10:38:35 +0200412 * Add a counter-measure against a vulnerability in TLS ciphersuites based
413 on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to
414 execute code on the local machine as well as manipulate network packets,
415 to partially recover the plaintext of messages under some conditions (see
416 previous entry) by using a cache attack targeting the SSL input record
417 buffer. Connections using GCM or CCM instead of CBC or using
418 Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson,
419 Eyal Ronen and Adi Shamir.
Gilles Peskine104d8582018-06-27 10:57:33 +0200420
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200421Features
422 * Add new crypto primitives from RFC 7539: stream cipher Chacha20, one-time
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200423 authenticator Poly1305 and AEAD construct Chacha20-Poly1305. Contributed
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100424 by Daniel King.
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200425 * Add support for CHACHA20-POLY1305 ciphersuites from RFC 7905.
Simon Butcher231d7e52018-07-10 11:56:19 +0100426 * Add platform support for the Haiku OS. (https://www.haiku-os.org).
427 Contributed by Augustin Cavalier.
Simon Butcher00af4472018-07-10 15:35:43 +0100428 * Make the receive and transmit buffers independent sizes, for situations
429 where the outgoing buffer can be fixed at a smaller size than the incoming
430 buffer, which can save some RAM. If buffer lengths are kept equal, there
431 is no functional difference. Contributed by Angus Gratton, and also
432 independently contributed again by Paul Sokolovsky.
Ron Eldor9cf0d532018-07-15 09:34:35 +0300433 * Add support for key wrapping modes based on AES as defined by
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100434 NIST SP 800-38F algorithms KW and KWP and by RFC 3394 and RFC 5649.
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200435
Simon Butcher9e02b972018-06-28 11:56:57 +0100436Bugfix
437 * Fix the key_app_writer example which was writing a leading zero byte which
438 was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
niisatob7d39db2018-06-25 20:44:57 +0900439 * Fix compilation error on C++, because of a variable named new.
niisato164b9cd2018-06-25 20:47:05 +0900440 Found and fixed by Hirotaka Niisato in #1783.
Simon Butcher1d97cab2018-06-28 12:06:16 +0100441 * Fix "no symbols" warning issued by ranlib when building on Mac OS X. Fix
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100442 contributed by tabascoeye.
Andres Amaya Garciaa562c262017-07-11 14:39:30 +0100443 * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
444 return value. Found by @davidwu2000. #839
Simon Butcher1ab9b572018-06-28 12:10:56 +0100445 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
446 Philippe Antoine. Fixes #1623.
Simon Butcher05fa46e2018-07-02 12:00:54 +0100447 * Remove unused headers included in x509.c. Found by Chris Hanson and fixed
448 by Brendan Shanks. Part of a fix for #992.
Ron Eldorda2a3122018-06-17 14:51:59 +0300449 * Fix compilation error when MBEDTLS_ARC4_C is disabled and
450 MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100451 * Added length checks to some TLS parsing functions. Found and fixed by
452 Philippe Antoine from Catena cyber. #1663.
Simon Butcher6c344422018-06-24 16:20:56 +0100453 * Fix the inline assembly for the MPI multiply helper function for i386 and
454 i386 with SSE2. Found by László Langó. Fixes #1550
Ron Eldor6332e362017-10-01 17:11:54 +0300455 * Fix namespacing in header files. Remove the `mbedtls` namespacing in
Ron Eldor6fd941f2017-05-14 16:17:33 +0300456 the `#include` in the header files. Resolves #857
Simon Butcherecb635e2018-07-24 10:03:41 +0100457 * Fix compiler warning of 'use before initialisation' in
458 mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid
459 Drozd. #1098
Simon Butcher05330542018-07-24 12:54:15 +0100460 * Fix decryption for zero length messages (which contain all padding) when a
461 CBC based ciphersuite is used together with Encrypt-then-MAC. Previously,
462 such a message was wrongly reported as an invalid record and therefore lead
463 to the connection being terminated. Seen most often with OpenSSL using
464 TLS 1.0. Reported by @kFYatek and by Conor Murphy on the forum. Fix
465 contributed by Espressif Systems. Fixes #1632
Andres Amaya Garcia81f06332018-07-04 10:01:39 +0100466 * Fix ssl_client2 example to send application data with 0-length content
467 when the request_size argument is set to 0 as stated in the documentation.
468 Fixes #1833.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100469 * Correct the documentation for `mbedtls_ssl_get_session()`. This API has
470 deep copy of the session, and the peer certificate is not lost. Fixes #926.
Simon Butcher2c929492018-07-24 17:20:17 +0100471 * Fix build using -std=c99. Fixed by Nick Wilson.
Simon Butcher9e02b972018-06-28 11:56:57 +0100472
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100473Changes
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100474 * Fail when receiving a TLS alert message with an invalid length, or invalid
475 zero-length messages when using TLS 1.2. Contributed by Espressif Systems.
476 * Change the default behaviour of mbedtls_hkdf_extract() to return an error
477 when calling with a NULL salt and non-zero salt_len. Contributed by
478 Brian J Murray
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100479 * Change the shebang line in Perl scripts to look up perl in the PATH.
480 Contributed by fbrosson.
Nicholas Wilson512b4ee2017-12-05 12:07:33 +0000481 * Allow overriding the time on Windows via the platform-time abstraction.
482 Fixed by Nick Wilson.
483 * Use gmtime_r/gmtime_s for thread-safety. Fixed by Nick Wilson.
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100484
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +0200485= mbed TLS 2.11.0 branch released 2018-06-18
486
487Features
Simon Butcher4ed38802018-06-12 17:35:06 +0100488 * Add additional block mode, OFB (Output Feedback), to the AES module and
489 cipher abstraction module.
490 * Implement the HMAC-based extract-and-expand key derivation function
491 (HKDF) per RFC 5869. Contributed by Thomas Fossati.
492 * Add support for the CCM* block cipher mode as defined in IEEE Std. 802.15.4.
Jaeden Amerof4474e72018-05-23 14:21:02 +0100493 * Add support for the XTS block cipher mode with AES (AES-XTS).
494 Contributed by Aorimn in pull request #414.
Gilles Peskineb44692f2018-04-24 12:18:19 +0200495 * In TLS servers, support offloading private key operations to an external
496 cryptoprocessor. Private key operations can be asynchronous to allow
497 non-blocking operation of the TLS server stack.
Simon Butcherebe23ed2018-06-12 16:46:45 +0100498
Simon Butcher601144e2018-06-12 17:04:58 +0100499Bugfix
Simon Butcher4ed38802018-06-12 17:35:06 +0100500 * Fix the cert_write example to handle certificates signed with elliptic
501 curves as well as RSA. Fixes #777 found by dbedev.
Simon Butchere5cd8682018-06-14 10:30:19 +0100502 * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
503 used by user applications. Found and fixed by Fabio Alessandrelli.
Simon Butcher600c5e62018-06-14 08:58:59 +0100504 * Fix compilation warnings with IAR toolchain, on 32 bit platform.
505 Reported by rahmanih in #683
Simon Butcher925568a2018-06-18 11:54:44 +0100506 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
Simon Butcher4ed38802018-06-12 17:35:06 +0100507
508Changes
509 * Changed CMake defaults for IAR to treat all compiler warnings as errors.
Simon Butcherb6a5bff2018-06-18 11:51:36 +0100510 * Changed the Clang parameters used in the CMake build files to work for
511 versions later than 3.6. Versions of Clang earlier than this may no longer
512 work. Fixes #1072
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200513
Simon Butcherd5a09f12018-06-06 14:47:47 +0100514= mbed TLS 2.10.0 branch released 2018-06-06
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100515
Manuel Pégourié-Gonnard08d1e912018-02-27 12:43:35 +0100516Features
517 * Add support for ARIA cipher (RFC 5794) and associated TLS ciphersuites
518 (RFC 6209). Disabled by default, see MBEDTLS_ARIA_C in config.h
519
Gilles Peskine80aa3b82018-04-04 10:33:45 +0200520API Changes
Andres Amaya Garcia19624052018-03-08 20:06:03 +0000521 * Extend the platform module with a util component that contains
522 functionality shared by multiple Mbed TLS modules. At this stage
523 platform_util.h (and its associated platform_util.c) only contain
524 mbedtls_platform_zeroize(), which is a critical function from a security
525 point of view. mbedtls_platform_zeroize() needs to be regularly tested
526 against compilers to ensure that calls to it are not removed from the
527 output binary as part of redundant code elimination optimizations.
528 Therefore, mbedtls_platform_zeroize() is moved to the platform module to
529 facilitate testing and maintenance.
Hanno Becker2bd57572018-03-28 14:52:35 +0100530
Simon Butcherd72700a2018-06-01 19:11:55 +0100531Bugfix
532 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
533 build to fail. Found by zv-io. Fixes #1651.
534
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100535Changes
536 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Moran Pekera64fba42018-02-25 13:29:03 +0200537 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
538 TrinityTonic. #1359.
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100539
Jaeden Amero7d7bad62018-04-27 13:07:13 +0100540= mbed TLS 2.9.0 branch released 2018-04-30
Ron Eldorfb46c322016-12-16 16:15:56 +0200541
Simon Butcherf85c90a2017-07-27 15:11:52 +0100542Security
Simon Butcherb03120a2018-04-30 16:40:25 +0100543 * Fix an issue in the X.509 module which could lead to a buffer overread
544 during certificate validation. Additionally, the issue could also lead to
545 unnecessary callback checks being made or to some validation checks to be
546 omitted. The overread could be triggered remotely, while the other issues
547 would require a non DER-compliant certificate to be correctly signed by a
548 trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
549 luocm. Fixes #825.
550 * Fix the buffer length assertion in the ssl_parse_certificate_request()
551 function which led to an arbitrary overread of the message buffer. The
552 overreads could be caused by receiving a malformed message at the point
553 where an optional signature algorithms list is expected when the signature
554 algorithms section is too short. In builds with debug output, the overread
555 data is output with the debug data.
Andrzej Kurekb7a18c02018-04-25 05:25:30 -0400556 * Fix a client-side bug in the validation of the server's ciphersuite choice
Simon Butcherb03120a2018-04-30 16:40:25 +0100557 which could potentially lead to the client accepting a ciphersuite it didn't
558 offer or a ciphersuite that cannot be used with the TLS or DTLS version
559 chosen by the server. This could lead to corruption of internal data
560 structures for some configurations.
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100561
Gilles Peskine15ad5792018-03-22 22:21:55 +0100562Features
Simon Butcherb03120a2018-04-30 16:40:25 +0100563 * Add an option, MBEDTLS_AES_FEWER_TABLES, to dynamically compute smaller AES
564 tables during runtime, thereby reducing the RAM/ROM footprint by ~6KiB.
565 Suggested and contributed by jkivilin in pull request #394.
Gilles Peskine15ad5792018-03-22 22:21:55 +0100566 * Add initial support for Curve448 (RFC 7748). Only mbedtls_ecp_mul() and
567 ECDH primitive functions (mbedtls_ecdh_gen_public(),
568 mbedtls_ecdh_compute_shared()) are supported for now. Contributed by
Simon Butchere6a2a1a2018-05-01 13:57:53 +0100569 Nicholas Wilson in pull request #348.
Hanno Becker371f31c2017-06-07 15:56:54 +0100570
571API Changes
Simon Butcherb03120a2018-04-30 16:40:25 +0100572 * Extend the public API with the function of mbedtls_net_poll() to allow user
573 applications to wait for a network context to become ready before reading
574 or writing.
575 * Add function mbedtls_ssl_check_pending() to the public API to allow
576 a check for whether more more data is pending to be processed in the
577 internal message buffers.
Gilles Peskine557e77d2018-04-04 09:18:11 +0200578 This function is necessary to determine when it is safe to idle on the
579 underlying transport in case event-driven IO is used.
Hanno Becker371f31c2017-06-07 15:56:54 +0100580
Andres AGee7157e2016-12-07 10:25:19 +0000581Bugfix
Simon Butcherb03120a2018-04-30 16:40:25 +0100582 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
Gilles Peskine08185402018-03-22 21:50:48 +0100583 contributed by Brian J Murray and David Brown.
Gilles Peskine51d93942018-03-23 01:42:44 +0100584 * Add missing dependencies in test suites that led to build failures
585 in configurations that omit certain hashes or public-key algorithms.
586 Fixes #1040.
Jaeden Amerob6049602018-03-26 18:25:58 +0100587 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
588 #1353
Gilles Peskinef69ad5a2018-03-27 23:08:53 +0200589 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
Simon Butcherb03120a2018-04-30 16:40:25 +0100590 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
591 Deomid Ryabkov. Fixes #1299, #1475.
592 * Fix the Makefile build process for building shared libraries on Mac OS X.
593 Fixed by mnacamura.
Jethro Beekmand2df9362018-02-16 13:11:04 -0800594 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcherb03120a2018-04-30 16:40:25 +0100595 unable to parse keys which had only the optional parameters field of the
Jethro Beekmancb122372018-04-11 08:40:38 -0700596 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
Simon Butcherb03120a2018-04-30 16:40:25 +0100597 * Return the plaintext data more quickly on unpadded CBC decryption, as
598 stated in the mbedtls_cipher_update() documentation. Contributed by
599 Andy Leiserson.
Gilles Peskineb9e86962018-04-04 09:20:59 +0200600 * Fix overriding and ignoring return values when parsing and writing to
601 a file in pk_sign program. Found by kevlut in #1142.
Hanno Beckerc53826b2017-10-12 07:46:41 +0100602 * Restrict usage of error code MBEDTLS_ERR_SSL_WANT_READ to situations
603 where data needs to be fetched from the underlying transport in order
604 to make progress. Previously, this error code was also occasionally
605 returned when unexpected messages were being discarded, ignoring that
606 further messages could potentially already be pending to be processed
Simon Butcherb03120a2018-04-30 16:40:25 +0100607 in the internal buffers; these cases led to deadlocks when event-driven
608 I/O was used. Found and reported by Hubert Mis in #772.
Gilles Peskinef2b76cd2018-04-19 17:41:39 +0200609 * Fix buffer length assertions in the ssl_parse_certificate_request()
610 function which leads to a potential one byte overread of the message
611 buffer.
Andrzej Kurek5462e022018-04-20 07:58:53 -0400612 * Fix invalid buffer sizes passed to zlib during record compression and
613 decompression.
Simon Butchere6a2a1a2018-05-01 13:57:53 +0100614 * Fix the soversion of libmbedcrypto to match the soversion of the
615 maintained 2.7 branch. The soversion was increased in Mbed TLS
616 version 2.7.1 to reflect breaking changes in that release, but the
617 increment was missed in 2.8.0 and later releases outside of the 2.7 branch.
Gilles Peskine08185402018-03-22 21:50:48 +0100618
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100619Changes
620 * Remove some redundant code in bignum.c. Contributed by Alexey Skalozub.
Simon Butcherb03120a2018-04-30 16:40:25 +0100621 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
622 independently by Matthieu Volat and Arne Schwabe.
Gilles Peskine51d93942018-03-23 01:42:44 +0100623 * Improve testing in configurations that omit certain hashes or
624 public-key algorithms. Includes contributions by Gert van Dijk.
625 * Improve negative testing of X.509 parsing.
Andres Amaya Garcia768bbaf2018-03-21 15:05:12 +0000626 * Do not define global mutexes around readdir() and gmtime() in
627 configurations where the feature is disabled. Found and fixed by Gergely
628 Budai.
Simon Butcherb03120a2018-04-30 16:40:25 +0100629 * Harden the function mbedtls_ssl_config_free() against misuse, so that it
630 doesn't leak memory if the user doesn't use mbedtls_ssl_conf_psk() and
631 instead incorrectly manipulates the configuration structure directly.
632 Found and fix submitted by junyeonLEE in #1220.
Andres Amaya Garciacb47a792018-03-27 21:19:50 +0100633 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
634 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
635 without PBES2. Fixed by Marcos Del Sol Vives.
Manuel Pégourié-Gonnardfff308e2018-03-28 11:13:05 +0200636 * Add the order of the base point as N in the mbedtls_ecp_group structure
637 for Curve25519 (other curves had it already). Contributed by Nicholas
638 Wilson #481
Jaeden Amero4ba87fc2018-03-29 11:01:38 +0100639 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
640 Krylov.
Darryl Greeneea1c4e2018-03-29 16:05:44 +0100641 * Improve the documentation of mbedtls_ssl_write(). Suggested by
642 Paul Sokolovsky in #1356.
Simon Butcherb03120a2018-04-30 16:40:25 +0100643 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100644 letter must not be prefixed by '-', such as LLVM. Found and fixed by
645 Alex Hixon.
Andres Amaya Garciaea5a8a42018-03-25 23:57:09 +0100646 * Allow configuring the shared library extension by setting the DLEXT
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100647 environment variable when using the project makefiles.
Gilles Peskine4e4be7c2018-03-21 16:29:03 +0100648 * Optimize unnecessary zeroing in mbedtls_mpi_copy. Based on a contribution
Gilles Peskine092bf3d2018-04-01 12:43:48 +0200649 by Alexey Skalozub in #405.
Gilles Peskinea09453f2018-04-04 09:14:12 +0200650 * In the SSL module, when f_send, f_recv or f_recv_timeout report
651 transmitting more than the required length, return an error. Raised by
652 Sam O'Connor in #1245.
Gilles Peskinec96ccf42018-03-31 22:57:03 +0200653 * Improve robustness of mbedtls_ssl_derive_keys against the use of
654 HMAC functions with non-HMAC ciphersuites. Independently contributed
655 by Jiayuan Chen in #1377. Fixes #1437.
Simon Butcherb03120a2018-04-30 16:40:25 +0100656 * Improve security of RSA key generation by including criteria from
657 FIPS 186-4. Contributed by Jethro Beekman. #1380
Gilles Peskine81021ca2018-04-19 20:59:06 +0200658 * Declare functions in header files even when an alternative implementation
659 of the corresponding module is activated by defining the corresponding
660 MBEDTLS_XXX_ALT macro. This means that alternative implementations do
661 not need to copy the declarations, and ensures that they will have the
662 same API.
Andrzej Kurekaca09c72018-04-13 05:18:08 -0400663 * Add platform setup and teardown calls in test suites.
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100664
Jaeden Amero8be0e6d2018-03-16 16:25:12 +0000665= mbed TLS 2.8.0 branch released 2018-03-16
Gilles Peskine27b07542018-02-14 14:07:48 +0100666
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100667Default behavior changes
668 * The truncated HMAC extension now conforms to RFC 6066. This means
669 that when both sides of a TLS connection negotiate the truncated
670 HMAC extension, Mbed TLS can now interoperate with other
671 compliant implementations, but this breaks interoperability with
672 prior versions of Mbed TLS. To restore the old behavior, enable
673 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
674 config.h. Found by Andreas Walz (ivESK, Offenburg University of
675 Applied Sciences).
676
Hanno Becker7dc832b2017-11-16 17:39:34 +0000677Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100678 * Fix implementation of the truncated HMAC extension. The previous
679 implementation allowed an offline 2^80 brute force attack on the
680 HMAC key of a single, uninterrupted connection (with no
681 resumption of the session).
Gilles Peskine553a06f2018-03-13 17:15:34 +0100682 * Verify results of RSA private key operations to defend
683 against Bellcore glitch attack.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +0100684 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
685 a crash on invalid input.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +0100686 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
687 crash on invalid input.
Manuel Pégourié-Gonnardfd3e4fb2018-03-13 11:53:30 +0100688 * Fix CRL parsing to reject CRLs containing unsupported critical
689 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Hanno Becker7dc832b2017-11-16 17:39:34 +0000690
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800691Features
692 * Extend PKCS#8 interface by introducing support for the entire SHA
693 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine1d80a672018-02-14 11:33:30 +0100694 This allows reading encrypted PEM files produced by software that
695 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
696 OpenVPN Inc. Fixes #1339
Gilles Peskine3dabd6a2018-02-14 17:19:41 +0100697 * Add support for public keys encoded in PKCS#1 format. #1122
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800698
Hanno Beckercf092b22018-03-06 14:23:38 +0000699New deprecations
700 * Deprecate support for record compression (configuration option
701 MBEDTLS_ZLIB_SUPPORT).
702
Gilles Peskine27b07542018-02-14 14:07:48 +0100703Bugfix
704 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
705 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +0100706 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +0200707 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
708 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskine1bf61232018-02-27 08:37:52 +0100709 In the context of SSL, this resulted in handshake failure. Reported by
710 daniel in the Mbed TLS forum. #1351
Jaeden Ameroc5d08f82018-02-21 13:32:39 +0000711 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskineb4c571e2018-03-11 00:44:14 +0100712 * Fix setting version TLSv1 as minimal version, even if TLS 1
713 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
714 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
715 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +0300716 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
717 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +0300718 Nick Wilson on issue #355
Gilles Peskine08af5382018-03-11 00:15:56 +0100719 * In test_suite_pk, pass valid parameters when testing for hash length
itayzafrir693a1d92018-02-26 12:02:10 +0200720 overflow. #1179
Gilles Peskinea31d8202018-03-12 23:45:08 +0100721 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
722 by Guido Vranken. #639
Gilles Peskine3ff4a072018-03-12 23:54:20 +0100723 * Log correct number of ciphersuites used in Client Hello message. #918
Gilles Peskine5f193282018-03-13 17:18:06 +0100724 * Fix X509 CRT parsing that would potentially accept an invalid tag when
725 parsing the subject alternative names.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +0100726 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
727 that could cause a key exchange to fail on valid data.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +0100728 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
729 could cause a key exchange to fail on valid data.
Gilles Peskine8db3efb2018-02-21 19:16:20 +0100730 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
731 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +0100732 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
733 Found through fuzz testing.
Gilles Peskine27b07542018-02-14 14:07:48 +0100734
735Changes
736 * Fix tag lengths and value ranges in the documentation of CCM encryption.
737 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +0100738 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskinedf298682018-02-14 15:49:54 +0100739 * Remove support for the library reference configuration for picocoin.
Gilles Peskinebb2565c2018-02-21 17:59:40 +0100740 * MD functions deprecated in 2.7.0 are no longer inline, to provide
741 a migration path for those depending on the library's ABI.
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200742 * Clarify the documentation of mbedtls_ssl_setup.
Gilles Peskine6dc4a312018-03-13 00:13:06 +0100743 * Use (void) when defining functions with no parameters. Contributed by
744 Joris Aerts. #678
Gilles Peskine27b07542018-02-14 14:07:48 +0100745
Simon Butcher55fc4e02018-02-05 01:09:13 +0000746= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100747
Gilles Peskine28a0c722017-10-17 19:01:38 +0200748Security
Simon Butcher55fc4e02018-02-05 01:09:13 +0000749 * Fix a heap corruption issue in the implementation of the truncated HMAC
750 extension. When the truncated HMAC extension is enabled and CBC is used,
751 sending a malicious application packet could be used to selectively corrupt
752 6 bytes on the peer's heap, which could potentially lead to crash or remote
753 code execution. The issue could be triggered remotely from either side in
754 both TLS and DTLS. CVE-2018-0488
755 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
756 for the key size, which could potentially lead to crash or remote code
757 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
758 Qualcomm Technologies Inc. CVE-2018-0487
759 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
760 zeros.
761 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
762 64 KiB to the address of the SSL buffer and causing a wrap around.
763 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +0100764 default enabled) maximum fragment length extension is disabled in the
765 config and the application data buffer passed to mbedtls_ssl_write
766 is larger than the internal message buffer (16384 bytes by default), the
767 latter overflows. The exploitability of this issue depends on whether the
768 application layer can be forced into sending such large packets. The issue
769 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +0000770 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
771 Fixes #707.
772 * Add a provision to prevent compiler optimizations breaking the time
773 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +0100774 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +0100775 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +0300776 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
777 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +0100778 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
779 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000780 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
781 data. Previously, trailing zero bytes were detected and omitted for the
782 sake of saving memory, but potentially leading to slight timing
783 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +0100784 * Wipe stack buffer temporarily holding EC private exponent
785 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000786 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +0100787 (server-side). Could result in application crash, but only if an ALPN
788 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100789 * Change default choice of DHE parameters from untrustworthy RFC 5114
790 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
791 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +0200792
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200793Features
794 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +0100795 * The selftest program can execute a subset of the tests based on command
796 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +0200797 * New unit tests for timing. Improve the self-test to be more robust
798 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +0100799 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +0000800 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +0100801 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +0100802 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +0300803 * Add support for alternative implementations for ECDSA, controlled by new
804 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
805 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +0300806 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +0300807 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +0300808 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000809 * Add support for alternative implementation of ECDH, controlled by the
810 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +0300811 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +0300812 The following functions from the ECDH module can be replaced
813 with an alternative implementation:
814 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000815 * Add support for alternative implementation of ECJPAKE, controlled by
816 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000817 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +0200818
Hanno Beckera47023e2017-12-22 17:08:03 +0000819API Changes
820 * Extend RSA interface by multiple functions allowing structure-
821 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +0000822 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +0000823 up RSA contexts from partial key material and having them completed to the
824 needs of the implementation automatically. This allows to setup private RSA
825 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
826 purpose or CRT and/or blinding.
827 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
828 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100829 * The following functions in the message digest modules (MD2, MD4, MD5,
830 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
831 The new functions change the return type from void to int to allow
832 returning error codes when using MBEDTLS_<MODULE>_ALT.
833 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
834 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
835 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100836 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200837
Ron Eldor73a38172017-10-03 15:58:26 +0300838New deprecations
839 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000840 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100841 * Direct manipulation of structure fields of RSA contexts is deprecated.
842 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000843 * Deprecate usage of message digest functions that return void
844 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
845 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
846 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
847 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100848 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
849 parameters from RFC 3526 or the newly added parameters from RFC 7919.
850 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
851 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
852 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000853 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
854 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100855 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100856
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100857Bugfix
858 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
859 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100860 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
Simon Butcherb03120a2018-04-30 16:40:25 +0100861 Found by projectgus and Jethro Beekman, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100862 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300863 * Parse signature algorithm extension when renegotiating. Previously,
864 renegotiated handshakes would only accept signatures using SHA-1
865 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000866 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
867 dates on leap years with 100 and 400 intervals are handled correctly. Found
868 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200869 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
870 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100871 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
872 Found independently by Florian in the mbed TLS forum and by Mishamax.
873 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100874 * Fix variable used before assignment compilation warnings with IAR
875 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000876 * Fix unchecked return codes from AES, DES and 3DES functions in
877 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
878 If a call to one of the functions of the cryptographic primitive modules
879 failed, the error may not be noticed by the function
880 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
881 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100882 * Include configuration file in md.h, to fix compilation warnings.
883 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100884 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
885 writing routines that prevented these functions to work with alternative
886 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100887 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
888 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100889 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000890 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100891 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000892 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100893 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000894 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000895 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100896 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100897 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100898 * Add size-checks for record and handshake message content, securing
899 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300900 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
901 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +0100902 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000903 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100904 * Fix possible memory leaks in mbedtls_gcm_self_test().
905 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +0000906 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
907 RSA test suite where the failure of CTR DRBG initialization lead to
908 freeing an RSA context and several MPI's without proper initialization
909 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +0100910 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +0100911 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
912 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000913 * Fix an issue in the cipher decryption with the mode
914 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
915 Note, this padding mode is not used by the TLS protocol. Found and fixed by
916 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +0100917 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
918 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
919 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
920 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +0100921 structure. Do not assume that zeroizing a context is a correct way to
922 reset it. Found independently by ccli8 on Github.
923 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000924 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
925 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +0100926
927Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +0000928 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +0100929 and the message digest. Further, allow enabling/disabling of authority
930 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +0000931 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
932 particular, don't require P,Q if neither CRT nor blinding are
933 used. Reported and fix proposed independently by satur9nine and sliai
934 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100935 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +0100936 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
937 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +0100938 * Update all internal usage of deprecated message digest functions to the
939 new ones with return codes. In particular, this modifies the
940 mbedtls_md_info_t structure. Propagate errors from these functions
941 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +0000942 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +0100943 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
944 modules where the software implementation can be replaced by a hardware
945 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +0100946 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
947 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100948
Simon Butcher72ea31b2017-08-10 11:51:16 +0100949= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +0200950
Simon Butcherb060cc22017-07-28 01:04:34 +0100951Security
Simon Butcher01971d02017-08-10 10:48:01 +0100952 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherf85c90a2017-07-27 15:11:52 +0100953 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
954 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +0100955 (default: 8) intermediates, even when it was not trusted. This could be
956 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +0100957 (the default), the handshake was correctly aborted).
958 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +0100959 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
960 Found by Laurent Simon.
Simon Butcherf85c90a2017-07-27 15:11:52 +0100961
Andres Amaya Garcia2187e032017-07-07 13:19:13 +0100962Features
963 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia24f36412017-07-12 11:27:05 +0100964 and the context struct mbedtls_platform_context to perform
965 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia5478bc72017-07-18 10:24:26 +0100966 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +0100967 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +0100968 some embedded environments to provide a means of initialising underlying
969 cryptographic acceleration hardware.
Andres Amaya Garcia2187e032017-07-07 13:19:13 +0100970
Simon Butcherab670432017-07-20 12:33:41 +0200971API Changes
972 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
973 API consistent with mbed TLS 2.5.0. Specifically removed the inline
974 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +0100975 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
976 by James Cowgill. #978
Simon Butcherf85c90a2017-07-27 15:11:52 +0100977 * Certificate verification functions now set flags to -1 in case the full
978 chain was not verified due to an internal error (including in the verify
979 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +0100980 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherf85c90a2017-07-27 15:11:52 +0100981 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +0100982 a fatal error in the verify callback.
Simon Butcherab670432017-07-20 12:33:41 +0200983
Ron Eldore2efaea2016-12-16 16:15:56 +0200984Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +0100985 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
986 Reported by roberto. #716
987 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor63140682017-01-09 19:27:59 +0200988 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +0100989 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +0100990 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
991 in the case of an error. Found by redplait. #590
Ron Eldorca6ff582017-01-12 14:50:50 +0200992 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100993 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciab820bf82017-05-04 11:05:55 +0100994 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
995 compilation when using ARM Compiler 6.
Simon Butcher5deb5182017-07-26 17:25:55 +0100996 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100997 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher5deb5182017-07-26 17:25:55 +0100998 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
999 KNOX Security, Samsung Research America
Andres AG2e65a542017-02-17 13:54:43 +00001000 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001001 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e65a542017-02-17 13:54:43 +00001002 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
1003 KNOX Security, Samsung Research America
Simon Butcher5deb5182017-07-26 17:25:55 +01001004 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001005 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher5deb5182017-07-26 17:25:55 +01001006 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +01001007 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +01001008 function mbedtls_time() instead. Found by wairua. #666
1009 * Avoid shadowing of time and index functions through mbed TLS function
1010 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +02001011
Janos Follath78b14732017-06-22 10:02:07 +01001012Changes
Janos Follathb85291c2017-06-22 10:02:07 +01001013 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +01001014 64-bit division. This is useful on embedded platforms where 64-bit division
1015 created a dependency on external libraries. #708
Janos Follath78b14732017-06-22 10:02:07 +01001016 * Removed mutexes from ECP hardware accelerator code. Now all hardware
1017 accelerator code in the library leaves concurrency handling to the
1018 platform. Reported by Steven Cooreman. #863
Andres Amaya Garciad0e15d72017-06-26 12:57:44 +01001019 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
1020 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +01001021 * Added a test script that can be hooked into git that verifies commits
1022 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +01001023 * Improve documentation of PKCS1 decryption functions.
Janos Follath78b14732017-06-22 10:02:07 +01001024
Simon Butcherf2a597f2017-06-20 23:08:10 +01001025= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +01001026
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001027Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +01001028 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
1029 The issue could only happen client-side with renegotiation enabled.
1030 Could result in DoS (application crash) or information leak
1031 (if the application layer sent data read from mbedtls_ssl_read()
1032 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +02001033 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
1034 certificate verification. SHA-1 can be turned back on with a compile-time
1035 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +02001036 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
1037 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +02001038 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
1039 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001040
Hanno Beckereccf60c2017-06-05 15:19:01 +01001041Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +01001042 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
1043 valid C and they prevented the test from compiling in Visual Studio 2015
1044 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +01001045 * Fix insufficient support for signature-hash-algorithm extension,
1046 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +01001047 * Fix behaviour that hid the original cause of fatal alerts in some cases
1048 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +02001049 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001050 * Fix SSLv3 renegotiation behaviour and stop processing data received from
1051 peer after sending a fatal alert to refuse a renegotiation attempt.
1052 Previous behaviour was to keep processing data even after the alert has
1053 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +01001054 * Accept empty trusted CA chain in authentication mode
Simon Butcherb03120a2018-04-30 16:40:25 +01001055 MBEDTLS_SSL_VERIFY_OPTIONAL. Found by Jethro Beekman. #864
Janos Follath5a1c0e72017-06-16 09:00:07 +01001056 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
1057 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
1058 reflect bad EC curves within verification result.
1059 * Fix bug that caused the modular inversion function to accept the invalid
1060 modulus 1 and therefore to hang. Found by blaufish. #641.
1061 * Fix incorrect sign computation in modular exponentiation when the base is
1062 a negative MPI. Previously the result was always negative. Found by Guido
1063 Vranken.
1064 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
1065 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +02001066
Gilles Peskine36091fe2017-05-03 16:55:03 +02001067Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +01001068 * Send fatal alerts in more cases. The previous behaviour was to skip
1069 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +00001070 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +01001071 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +00001072 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +02001073
Simon Butcher9f770172017-05-15 15:13:59 +01001074= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001075
Janos Follath45182a02017-03-23 10:41:56 +00001076Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +01001077 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +01001078 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
1079 Simon.
Janos Follath45182a02017-03-23 10:41:56 +00001080 * Add exponent blinding to RSA private operations as a countermeasure
1081 against side-channel attacks like the cache attack described in
1082 https://arxiv.org/abs/1702.08719v2.
1083 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
1084 Clémentine Maurice and Stefan Mangard.
1085
Simon Butcher4775e832017-05-13 22:56:08 +01001086Features
Janos Follath5a1c0e72017-06-16 09:00:07 +01001087 * Add hardware acceleration support for the Elliptic Curve Point module.
1088 This involved exposing parts of the internal interface to enable
1089 replacing the core functions and adding and alternative, module level
1090 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +01001091 * Add a new configuration option to 'mbedtls_ssl_config' to enable
1092 suppressing the CA list in Certificate Request messages. The default
1093 behaviour has not changed, namely every configured CAs name is included.
1094
Andres AGf5bf7182017-03-03 14:09:56 +00001095API Changes
1096 * The following functions in the AES module have been deprecated and replaced
1097 by the functions shown below. The new functions change the return type from
1098 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
1099 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
1100 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
1101 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
1102
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001103Bugfix
1104 * Remove macros from compat-1.3.h that correspond to deleted items from most
1105 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001106 * Fixed issue in the Threading module that prevented mutexes from
1107 initialising. Found by sznaider. #667 #843
1108 * Add checks in the PK module for the RSA functions on 64-bit systems.
1109 The PK and RSA modules use different types for passing hash length and
1110 without these checks the type cast could lead to data loss. Found by Guido
1111 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001112
Simon Butcherb65c2be2017-03-10 18:50:44 +00001113= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +01001114
Janos Follath182013f2016-10-25 10:50:22 +01001115Security
Simon Butcherb65c2be2017-03-10 18:50:44 +00001116 * Add checks to prevent signature forgeries for very large messages while
1117 using RSA through the PK module in 64-bit systems. The issue was caused by
1118 some data loss when casting a size_t to an unsigned int value in the
1119 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
1120 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +00001121 * Fixed potential livelock during the parsing of a CRL in PEM format in
1122 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
1123 characters after the footer could result in the execution of an infinite
1124 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
1125 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +01001126 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
1127 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +00001128 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +00001129 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
1130 when verifying the validity of a key on secp224k1. This could be
1131 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +00001132 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +00001133 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
1134 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +00001135
Andres AG703990b2016-10-24 11:23:36 +01001136Bugfix
Andres AGd1650662016-12-09 17:26:23 +00001137 * Fix output certificate verification flags set by x509_crt_verify_top() when
1138 traversing a chain of trusted CA. The issue would cause both flags,
1139 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
1140 set when the verification conditions are not met regardless of the cause.
1141 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +00001142 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
1143 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
1144 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +00001145 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
1146 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +00001147 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +00001148 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
1149 would compare 64 bits of the record counter instead of 48 bits as indicated
1150 in RFC 6347 Section 4.3.1. This could cause the execution of the
1151 renegotiation routines at unexpected times when the protocol is DTLS. Found
1152 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +01001153 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +01001154 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +01001155 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +00001156 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
1157 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1158 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
1159 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1160 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
1161 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +00001162 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
1163 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +00001164 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
1165 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +00001166 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
1167 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +00001168 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
1169 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +00001170 * Fixed the templates used to generate project and solution files for Visual
1171 Studio 2015 as well as the files themselves, to remove a build warning
1172 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +02001173 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
1174 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +00001175 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
1176 number to write in hexadecimal is negative and requires an odd number of
1177 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +00001178 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
1179 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +01001180
Janos Follath4c006cd2016-12-13 14:14:03 +00001181= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +00001182
1183Changes
1184 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
1185 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
1186 Authentication – October 2016
1187
Simon Butcher19dbd412016-10-16 19:35:49 +01001188= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +03001189
Andres AG60dbc932016-09-02 15:23:48 +01001190Security
Simon Butcheref8fa012016-10-16 00:44:08 +01001191 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
1192 with RFC-5116 and could lead to session key recovery in very long TLS
1193 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
1194 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
1195 https://eprint.iacr.org/2016/475.pdf
1196 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +01001197 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +01001198 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +01001199 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +01001200
Simon Butchercf8c1f42016-09-02 21:29:39 +03001201Features
Simon Butcher21c54812016-10-05 14:17:37 +01001202 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
1203 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001204 * Added hardware entropy selftest to verify that the hardware entropy source
1205 is functioning correctly.
1206 * Added a script to print build environment info for diagnostic use in test
1207 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +01001208 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
1209 configure the maximum length of a file path that can be buffered when
1210 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +01001211 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +01001212 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +01001213 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
1214 to configure the minimum number of bytes for entropy sources using the
1215 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001216
1217Bugfix
1218 * Fix for platform time abstraction to avoid dependency issues where a build
1219 may need time but not the standard C library abstraction, and added
1220 configuration consistency checks to check_config.h
1221 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +01001222 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
1223 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +03001224 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
1225 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +03001226 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
1227 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +01001228 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +01001229 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +01001230 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +01001231 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +01001232 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +01001233 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +01001234 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
1235 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
1236 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +01001237 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
1238 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +01001239 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +01001240 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +01001241 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +01001242 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +01001243 * Fix potential byte overread when verifying malformed SERVER_HELLO in
1244 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +01001245 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +01001246 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +01001247 * Fix compatibility issue with Internet Explorer client authentication,
1248 where the limited hash choices prevented the client from sending its
1249 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +01001250 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001251
1252Changes
1253 * Extended test coverage of special cases, and added new timing test suite.
1254 * Removed self-tests from the basic-built-test.sh script, and added all
1255 missing self-tests to the test suites, to ensure self-tests are only
1256 executed once.
1257 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
1258 * Added support for a Yotta specific configuration file -
1259 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +01001260 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +01001261 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +01001262 * Renamed source file library/net.c to library/net_sockets.c to avoid
1263 naming collision in projects which also have files with the common name
1264 net.c. For consistency, the corresponding header file, net.h, is marked as
1265 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +01001266 * Changed the strategy for X.509 certificate parsing and validation, to no
1267 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001268
Simon Butcher46125fb2016-06-27 19:43:55 +01001269= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001270
Janos Follathcc4eba72016-02-10 16:25:55 +00001271Security
Janos Follathe43b81a2016-02-10 16:25:55 +00001272 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +00001273 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +00001274 * Fix potential integer overflow to buffer overflow in
1275 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +01001276 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +01001277 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +00001278 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
1279 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +00001280
Simon Butcher3fe6cd32016-04-26 19:51:29 +01001281Features
1282 * Support for platform abstraction of the standard C library time()
1283 function.
1284
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001285Bugfix
1286 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
1287 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001288 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +00001289 * Fix potential build failures related to the 'apidoc' target, introduced
1290 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001291 * Fix issue in Makefile that prevented building using armar. #386
Janos Follath4ae5c292016-02-10 11:27:43 +00001292 * Fix memory leak that occured only when ECJPAKE was enabled and ECDHE and
1293 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +00001294 * Fix an issue that caused valid certificates to be rejected whenever an
1295 expired or not yet valid certificate was parsed before a valid certificate
1296 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +01001297 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +00001298 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +01001299 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +00001300 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
1301 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +01001302 * Fix issue that caused a crash if invalid curves were passed to
1303 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +01001304 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +01001305 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +01001306 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +01001307 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001308
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +01001309Changes
1310 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
1311 don't use the optimized assembly for bignum multiplication. This removes
1312 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +01001313 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +01001314 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
1315 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +01001316 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
1317 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +01001318
1319= mbed TLS 2.2.1 released 2016-01-05
1320
1321Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +01001322 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +01001323 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +00001324 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +01001325 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
1326 SLOTH attack on TLS 1.2 server authentication (other attacks from the
1327 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001328 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +00001329
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001330Bugfix
1331 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
1332 * Fix bug in certificate validation that caused valid chains to be rejected
1333 when the first intermediate certificate has pathLenConstraint=0. Found by
1334 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +00001335 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +00001336 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +01001337 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001338 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +02001339 datagram if a single record in a datagram is unexpected, instead only
1340 drop the record and look at subsequent records (if any are present) in
1341 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +02001342
1343= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +00001344
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +02001345Security
1346 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
1347 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +00001348 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001349 * Fix potential heap corruption on Windows when
1350 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
1351 triggered remotely. Found by Guido Vranken, Intelworks.
1352 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +02001353 Cannot be triggered remotely unless you create X.509 certificates based
1354 on untrusted input or write keys of untrusted origin. Found by Guido
1355 Vranken, Intelworks.
1356 * The X509 max_pathlen constraint was not enforced on intermediate
1357 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001358 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001359
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001360Features
1361 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
1362 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001363 * Added a key extraction callback to accees the master secret and key
1364 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +02001365
1366Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +00001367 * Self-signed certificates were not excluded from pathlen counting,
1368 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001369 provided by Janos Follath. #319
1370 * Fix build error with configurations where ECDHE-PSK is the only key
1371 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001372 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +02001373 ECHD-ECDSA if the only key exchange. Multiple reports. #310
1374 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +02001375 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +09001376 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
1377 size/curve against the profile. Before that, there was no way to set a
1378 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001379 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +01001380 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
1381 Found by Kurt Danielson. #292
1382 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001383 * Fix bug in ASN.1 encoding of booleans that caused generated CA
1384 certificates to be rejected by some applications, including OS X
1385 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +01001386
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +01001387Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +01001388 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
1389 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001390
1391= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +01001392
1393Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +02001394 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
1395 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +01001396 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +02001397 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +01001398 once in the same handhake and mbedtls_ssl_conf_psk() was used.
1399 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
1400 remotely.
1401 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +01001402 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +01001403 Found by Guido Vranken, Intelworks. Not triggerable remotely.
1404 * Fix potential buffer overflow in mbedtls_mpi_read_string().
1405 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
1406 of TLS, but might be in other uses. On 32 bit machines, requires reading a
1407 string of close to or larger than 1GB to exploit; on 64 bit machines, would
1408 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +02001409 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +01001410 on crafted PEM input data. Found and fix provided by Guido Vranken,
1411 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +02001412 accept PEM data from an untrusted source.
1413 * Fix possible heap buffer overflow in base64_encoded() when the input
1414 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +01001415 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +01001416 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001417 the same mbedtls_ssl_config object and memory allocation fails. Found by
1418 Guido Vranken, Intelworks. Cannot be forced remotely.
1419 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +01001420 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001421 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +01001422 Found by Guido Vranken, Intelworks.
1423
1424Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +01001425 * Fix compile error in net.c with musl libc. Found and patch provided by
1426 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +01001427 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +01001428
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001429Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001430 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
1431 domain names are compliant with RFC 1035.
1432 * Fixed paths for check_config.h in example config files. (Found by bachp)
1433 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001434
1435= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001436
1437Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001438 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +01001439 signatures. (Found by Florian Weimer, Red Hat.)
1440 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +02001441 * Fix possible client-side NULL pointer dereference (read) when the client
1442 tries to continue the handshake after it failed (a misuse of the API).
1443 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +01001444 afl-fuzz.)
1445
1446Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +02001447 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
1448 * Fix off-by-one error in parsing Supported Point Format extension that
1449 caused some handshakes to fail.
1450
1451Changes
1452 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
1453 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +01001454 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001455 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001456 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001457 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +02001458 detected and mbedtls_ssl_read() will return
1459 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001460 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001461
1462= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +02001463
1464Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +02001465 * Added support for yotta as a build system.
1466 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001467
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +02001468Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001469 * Fix segfault in the benchmark program when benchmarking DHM.
1470 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +02001471 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +02001472 * Fix bug when parsing a ServerHello without extensions (found by David
1473 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +02001474 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
1475 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +02001476 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
1477 installed (found by Rawi666).
1478 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +02001479 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +02001480 (found by robotanarchy) (#232).
1481 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +02001482 tests (found by robotanarchy) (#232).
1483 * Fix missing -static-libgcc when building shared libraries for Windows
1484 with make.
Simon Butcher52754592015-09-03 13:06:01 +01001485 * Fix link error when building shared libraries for Windows with make.
1486 * Fix error when loading libmbedtls.so.
1487 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
1488 be always used (found by dcb314) (#235)
1489 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
1490 result trying to unlock an unlocked mutex on invalid input (found by
1491 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001492 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +02001493 * Fix memory corruption on client with overlong PSK identity, around
1494 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001495 Aleksandrs Saveljevs) (#238)
1496 * Fix unused function warning when using MBEDTLS_MDx_ALT or
1497 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +02001498 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
1499
1500Changes
Simon Butcher52754592015-09-03 13:06:01 +01001501 * The PEM parser now accepts a trailing space at end of lines (#226).
1502 * It is now possible to #include a user-provided configuration file at the
1503 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
1504 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001505 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +01001506 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +01001507 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001508 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001509 Hugo Leisink) (#210).
1510 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
1511 length.
1512
1513= mbed TLS 2.0.0 released 2015-07-13
1514
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001515Features
1516 * Support for DTLS 1.0 and 1.2 (RFC 6347).
1517 * Ability to override core functions from MDx, SHAx, AES and DES modules
1518 with custom implementation (eg hardware accelerated), complementing the
1519 ability to override the whole module.
1520 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +02001521 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001522 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +02001523 which algorithms and key sizes (curves for ECDSA) are acceptable.
1524 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001525 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001526 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001527 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001528
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +02001529API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +02001530 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
1531 You now need to link to all of them if you use TLS for example.
1532 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001533 Some names have been further changed to make them more consistent.
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001534 Migration helpers scripts/rename.pl and include/mbedlts/compat-1.3.h are
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001535 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001536 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +02001537 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001538 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +02001539 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001540 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
1541 * The following _init() functions that could return errors have
Tillmann Karras588ad502015-09-25 04:27:22 +02001542 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001543 should generally be the first function called on this context after init:
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001544 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001545 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
1546 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
1547 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
1548 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001549 Note that for mbedtls_ssl_setup(), you need to be done setting up the
1550 ssl_config structure before calling it.
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001551 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
1552 ssl_set_session() and ssl_set_client_transport_id(), plus
1553 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
1554 (see rename.pl and compat-1.3.h above) and their first argument's type
1555 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001556 * ssl_set_bio() changed signature (contexts merged, order switched, one
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01001557 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001558 * The following functions have been introduced and must be used in callback
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01001559 implementations (SNI, PSK) instead of their *conf counterparts:
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001560 mbedtls_ssl_set_hs_own_cert()
1561 mbedtls_ssl_set_hs_ca_chain()
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02001562 mbedtls_ssl_set_hs_psk()
1563 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001564 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001565 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001566 pointer, parameters reordered).
1567 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
1568 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001569 * The SSL debug callback gained two new arguments (file name, line number).
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001570 * Debug modes were removed.
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01001571 * mbedtls_ssl_conf_truncated_hmac() now returns void.
1572 * mbedtls_memory_buffer_alloc_init() now returns void.
1573 * X.509 verification flags are now an uint32_t. Affect the signature of:
1574 mbedtls_ssl_get_verify_result()
1575 mbedtls_x509_ctr_verify_info()
1576 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02001577 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
1578 * The following functions changed prototype to avoid an in-out length
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02001579 parameter:
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02001580 mbedtls_base64_encode()
1581 mbedtls_base64_decode()
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02001582 mbedtls_mpi_write_string()
1583 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02001584 * In the NET module, all "int" and "int *" arguments for file descriptors
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02001585 changed type to "mbedtls_net_context *".
1586 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01001587 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
1588 return void.
1589 * ecdsa_write_signature() gained an addtional md_alg argument and
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01001590 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02001591 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
1592 * Last argument of x509_crt_check_key_usage() and
1593 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00001594 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02001595 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
1596 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02001597 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001598 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
1599 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02001600 length parameter to include the terminating null byte for PEM input.
1601 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001602 * calloc() is now used instead of malloc() everywhere. API of platform
1603 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02001604 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001605 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
1606 (support for renegotiation now needs explicit enabling in config.h).
1607 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001608 in config.h
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02001609 * net_connect() and net_bind() have a new 'proto' argument to choose
1610 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02001611 Their 'port' argument type is changed to a string.
1612 * Some constness fixes
1613
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02001614Removals
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02001615 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001616 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
1617 mbedtls_ecp_muladd().
1618 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
1619 (use generic functions from md.h)
1620 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
1621 waiting function.
1622 * Removed test DHM parameters from the test certs module.
1623 * Removed the PBKDF2 module (use PKCS5).
1624 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
1625 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
1626 * Removed openssl.h (very partial OpenSSL compatibility layer).
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001627 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
1628 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
1629 been removed (compiler is required to support 32-bit operations).
1630 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001631 * Removed test program o_p_test, the script compat.sh does more.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001632 * Removed test program ssl_test, superseded by ssl-opt.sh.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001633 * Removed helper script active-config.pl
1634
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02001635New deprecations
1636 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001637 argument (allowing memory savings if HMAC is not used)
1638
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01001639Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001640 * Renamed a few headers to include _internal in the name. Those headers are
1641 not supposed to be included by users.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001642 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001643 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02001644 * Changed cipher_base_t into an opaque structure.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001645 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
1646 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001647 * Removed r and s from ecdsa_context
1648 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01001649
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02001650Default behavior changes
1651 * The default minimum TLS version is now TLS 1.0.
1652 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01001653 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001654 * Support for receiving SSLv2 ClientHello is now disabled by default at
1655 compile time.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01001656 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02001657 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
1658 enabled in the default configuration, this is only noticeable if using a
1659 custom config.h
1660 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
1661 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
1662 chain verification.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001663 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001664 * The following functions are now case-sensitive:
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001665 mbedtls_cipher_info_from_string()
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001666 mbedtls_ecp_curve_info_from_name()
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001667 mbedtls_md_info_from_string()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001668 mbedtls_ssl_ciphersuite_from_string()
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001669 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001670
1671Requirement changes
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001672 * The minimum MSVC version required is now 2010 (better C99 support).
1673 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
1674 * Compiler is required to support C99 types such as long long and uint32_t.
1675
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02001676API changes from the 1.4 preview branch
1677 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
1678 new prototype, and mbedtls_ssl_set_read_timeout().
1679 * The following functions now return void:
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02001680 mbedtls_ssl_conf_transport()
1681 mbedtls_ssl_conf_max_version()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001682 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001683 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
1684 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
1685 an example implementation, see mbedtls_timing_delay_context and
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001686 mbedtls_timing_set/get_delay().
1687 * With UDP sockets, it is no longer necessary to call net_bind() again
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001688 after a successful net_accept().
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001689
1690Changes
1691 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02001692 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01001693 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
1694 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02001695
1696= mbed TLS 1.3 branch
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001697
1698Security
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02001699 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
1700 extendedKeyUsage on the leaf certificate was lost (results not accessible
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02001701 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02001702 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02001703 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01001704
1705Features
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001706 * Improve ECC performance by using more efficient doubling formulas
1707 (contributed by Peter Dettman).
1708 * Add x509_crt_verify_info() to display certificate verification results.
1709 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00001710 (contributed by Daniel Kahn Gillmor).
1711 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00001712 * Add support for id-at-uniqueIdentifier in X.509 names.
1713 * Add support for overriding snprintf() (except on Windows) and exit() in
1714 the platform layer.
1715 * Add an option to use macros instead of function pointers in the platform
1716 layer (helps get rid of unwanted references).
1717 * Improved Makefiles for Windows targets by fixing library targets and making
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001718 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001719 * The benchmark program also prints heap usage for public-key primitives
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001720 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001721 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001722 speed and RAM (heap only for now) usage.
1723 * New script memory.sh helps measuring the ROM and RAM requirements of two
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01001724 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01001725 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001726 warnings on use of deprecated functions (with GCC and Clang only).
1727 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001728 errors on use of deprecated functions.
1729
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001730Bugfix
1731 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001732 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
1733 * Fix bug in entropy.c when THREADING_C is also enabled that caused
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001734 entropy_free() to crash (thanks to Rafał Przywara).
1735 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001736 once on the same context.
1737 * Fix bug in ssl_mail_client when password is longer that username (found
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001738 by Bruno Pape).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001739 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1740 (detected by Clang's 3.6 UBSan).
1741 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001742 initialized but not set (found by pravic).
1743 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001744 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001745 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001746 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1747 ssl_write() is called before the handshake is finished (introduced in
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001748 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001749 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1750 rejected.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001751 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001752 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
1753 * Fix hardclock() (only used in the benchmarking program) with some
1754 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001755 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001756 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1757 platforms.
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001758 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
1759 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001760 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1761 in 1.3.10).
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001762 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
1763 * Add missing dependency on SHA-256 in some x509 programs (reported by
1764 Gergely Budai).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001765 * Fix bug related to ssl_set_curves(): the client didn't check that the
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001766 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001767
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001768Changes
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001769 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1770 * Remove potential sources of timing variations (some contributed by Pascal
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001771 Junod).
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001772 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001773 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
1774 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001775 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
1776 more flexible (warning: OFLAGS is not used any more) (see the README)
1777 (contributed by Alon Bar-Lev).
1778 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001779 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001780 * Move from SHA-1 to SHA-256 in example programs using signatures
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001781 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001782 * Remove some unneeded inclusions of header files from the standard library
1783 "minimize" others (eg use stddef.h if only size_t is needed).
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001784 * Change #include lines in test files to use double quotes instead of angle
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001785 brackets for uniformity with the rest of the code.
1786 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001787
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001788= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001789Security
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001790 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001791 full and polarssl_free() is called (found by Mark Hasemeyer)
1792 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1793 not by default).
1794 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001795 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001796 client certificate) (found using Codenomicon Defensics).
1797 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1798 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001799 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001800 * Fix potential stack overflow while parsing crafted X.509 certificates
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001801 (TLS server is not affected if it doesn't ask for a client certificate)
1802 (found using Codenomicon Defensics).
1803 * Fix timing difference that could theoretically lead to a
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001804 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001805 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001806
1807Features
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001808 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001809 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
Paul Bakker6152b022015-04-14 15:00:09 +02001810 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001811 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001812 * Add x509_crl_parse_der().
1813 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001814 length of an X.509 verification chain.
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001815 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001816 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
1817 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001818 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001819 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1820 a compatible enough libc (eg uClibc).
1821 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001822 while using the default ciphersuite list.
1823 * Added new error codes and debug messages about selection of
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001824 ciphersuite/certificate.
1825
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001826Bugfix
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001827 * Stack buffer overflow if ctr_drbg_update() is called with too large
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001828 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1829 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001830 if memory_buffer_alloc_init() was called with buf not aligned and len not
1831 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001832 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001833 by Julian Ospald).
1834 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001835 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1836 multiple of 8 (found by Gergely Budai).
1837 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1838 Peter Vaskovic).
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001839 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1840 * ssl_get_verify_result() now works even if the handshake was aborted due
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001841 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001842 * Skip writing and parsing signature_algorithm extension if none of the
1843 key exchanges enabled needs certificates. This fixes a possible interop
1844 issue with some servers when a zero-length extension was sent. (Reported
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001845 by Peter Dettman.)
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001846 * On a 0-length input, base64_encode() did not correctly set output length
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001847 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001848
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001849Changes
1850 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
Paul Bakkere522d0f2015-01-14 16:12:48 +01001851 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001852 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001853 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001854 * Forbid repeated extensions in X.509 certificates.
1855 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001856 * A specific error is now returned when there are ciphersuites in common
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001857 but none of them is usable due to external factors such as no certificate
Paul Bakker9eac4f72014-10-20 13:56:15 +02001858 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001859 * It is now possible to disable negotiation of truncated HMAC server-side
1860 at runtime with ssl_set_truncated_hmac().
1861 * Example programs for SSL client and server now disable SSLv3 by default.
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001862 * Example programs for SSL client and server now disable RC4 by default.
Paul Bakkerb082bb52014-10-20 13:37:51 +02001863 * Use platform.h in all test suites and programs.
1864
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001865= PolarSSL 1.3.9 released 2014-10-20
Paul Bakkerb082bb52014-10-20 13:37:51 +02001866Security
1867 * Lowest common hash was selected from signature_algorithms extension in
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001868 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001869 * Remotely-triggerable memory leak when parsing some X.509 certificates
1870 (server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001871 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001872 * Remotely-triggerable memory leak when parsing crafted ClientHello
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001873 (not affected if ECC support was compiled out) (found using Codenomicon
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001874 Defensics).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001875
1876Bugfix
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001877 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001878 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
1879 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001880 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1881 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001882 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1883 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001884 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001885 * ssl_read() could return non-application data records on server while
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001886 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001887 * Server-initiated renegotiation would fail with non-blocking I/O if the
1888 write callback returned WANT_WRITE when requesting renegotiation.
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001889 * ssl_close_notify() could send more than one message in some circumstances
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001890 with non-blocking I/O.
1891 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1892 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001893 * Fix compile error with armcc in mpi_is_prime()
1894 * Fix potential bad read in parsing ServerHello (found by Adrien
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02001895 Vialletelle).
1896
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001897Changes
1898 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02001899 standard defining how to use SHA-2 with SSL 3.0).
1900 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02001901 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001902 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
1903 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001904 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
Paul Bakker1910aa72014-07-11 11:28:56 +02001905 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02001906 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
1907 RSA keys.
1908 * Accept spaces at end of line or end of buffer in base64_decode().
1909 * X.509 certificates with more than one AttributeTypeAndValue per
1910 RelativeDistinguishedName are not accepted any more.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001911
1912= PolarSSL 1.3.8 released 2014-07-11
1913Security
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02001914 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1915 It was possible to crash the server (and client) using crafted messages
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02001916 when a GCM suite was chosen.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02001917
1918Features
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02001919 * Add CCM module and cipher mode to Cipher Layer
1920 * Support for CCM and CCM_8 ciphersuites
Paul Bakker23647b42014-07-04 15:00:12 +02001921 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
1922 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02001923 * Blowfish in the cipher layer now supports variable length keys.
1924 * Add example config.h for PSK with CCM, optimized for low RAM usage.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001925 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Paul Bakker863989b2014-06-12 21:49:01 +02001926 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
1927 from the default list (inactive by default).
1928 * Add server-side enforcement of sent renegotiation requests
Paul Bakker34617722014-06-13 17:20:13 +02001929 (ssl_set_renegotiation_enforced())
1930 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02001931 ciphersuites to use and save some memory if the list is small.
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02001932
1933Changes
Paul Bakker28476e22014-07-01 15:59:04 +02001934 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
1935 required on some platforms (e.g. OpenBSD)
Paul Bakker863989b2014-06-12 21:49:01 +02001936 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
Paul Bakker5593f7c2014-05-06 10:29:28 +02001937 against unwanted compiler optimizations
1938 * md_list() now returns hashes strongest first
Paul Bakker1ebc0c52014-05-22 15:47:58 +02001939 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
Paul Bakkerdff31392014-05-22 15:06:41 +02001940 strongest offered by client.
Paul Bakker0f651c72014-05-22 15:12:19 +02001941 * All public contexts have _init() and _free() functions now for simpler
1942 usage pattern
Paul Bakker49033ba2014-06-12 21:46:13 +02001943
1944Bugfix
1945 * Fix in debug_print_msg()
1946 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakker3c38f292014-06-13 17:37:46 +02001947 * Remove less-than-zero checks on unsigned numbers
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001948 * Stricter check on SSL ClientHello internal sizes compared to actual packet
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02001949 size (found by TrustInSoft)
1950 * Fix WSAStartup() return value check (found by Peter Vaskovic)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001951 * Other minor issues (found by Peter Vaskovic)
1952 * Fix symlink command for cross compiling with CMake (found by Andre
1953 Heinecke)
1954 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02001955 * Very small records were incorrectly rejected when truncated HMAC was in
1956 use with some ciphersuites and versions (RC4 in all versions, CBC with
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02001957 versions < TLS 1.1).
1958 * Very large records using more than 224 bytes of padding were incorrectly
1959 rejected with CBC-based ciphersuites and TLS >= 1.1
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07001960 * Very large records using less padding could cause a buffer overread of up
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02001961 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
1962 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02001963 been removed in 1.3.6.)
1964 * Restore ability to locally trust a self-signed cert that is not a proper
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02001965 CA for use as an end entity certificate. (This had been removed in
1966 1.3.6.)
1967 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02001968 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
Paul Bakkerd5983182014-07-04 13:50:31 +02001969 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1970 * Fix off-by-one error in parsing Supported Point Format extension that
Paul Bakker6c343d72014-07-10 14:36:19 +02001971 caused some handshakes to fail.
1972 * Fix possible miscomputation of the premaster secret with DHE-PSK key
Paul Bakker5593f7c2014-05-06 10:29:28 +02001973 exchange that caused some handshakes to fail with other implementations.
Paul Bakker47431b62014-05-02 13:27:13 +02001974 (Failure rate <= 1/255 with common DHM moduli.)
Paul Bakkereaebbd52014-04-25 15:04:14 +02001975 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerc73079a2014-04-25 16:34:30 +02001976 * Fix base64_decode() to return and check length correctly (in case of
1977 tight buffers)
Paul Bakker0f90d7d2014-04-30 11:49:44 +02001978 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
1979 by Hui Dong)
Paul Bakker92478c32014-04-25 15:18:34 +02001980
Paul Bakker088c5c52014-04-25 11:11:10 +02001981= PolarSSL 1.3.7 released on 2014-05-02
1982Features
1983 * debug_set_log_mode() added to determine raw or full logging
Paul Bakker92478c32014-04-25 15:18:34 +02001984 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker63844402014-04-30 15:34:12 +02001985 * version_check_feature() added to check for compile-time options at
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02001986 run-time
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02001987
Paul Bakker088c5c52014-04-25 11:11:10 +02001988Changes
Paul Bakkere92f73d2014-04-18 14:08:26 +02001989 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
1990 checked and filled in the relevant module headers
1991 * Debug module only outputs full lines instead of parts
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02001992 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
1993 * AES-NI now compiles with "old" assemblers too
Paul Bakkerfdba4682014-04-25 11:48:35 +02001994 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker61885c72014-04-25 12:59:03 +02001995
1996Bugfix
Paul Bakkera7036632014-04-30 10:15:38 +02001997 * Only iterate over actual certificates in ssl_write_certificate_request()
1998 (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02001999 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
Paul Bakkerf96f7b62014-04-30 16:02:38 +02002000 Karger)
Paul Bakker33dc46b2014-04-30 16:11:39 +02002001 * cert_write app should use subject of issuer certificate as issuer of cert
2002 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02002003 ciphersuites, for full SSL frames of data.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02002004 * Improve interoperability by not writing extension length in ClientHello /
Markus Pfeiffera26a0052014-04-22 20:16:15 +00002005 ServerHello when no extensions are present (found by Matthew Page)
Barry K. Nathancf975f52014-04-23 17:40:25 -07002006 * rsa_check_pubkey() now allows an E up to N
2007 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakkere92f73d2014-04-18 14:08:26 +02002008 * mpi_fill_random() was creating numbers larger than requested on
Paul Bakker784b04f2014-04-11 15:33:59 +02002009 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002010 * Fix dependencies issues in X.509 test suite.
Paul Bakker27e36d32014-04-08 12:33:37 +02002011 * Some parts of ssl_tls.c were compiled even when the module was disabled.
2012 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Paul Bakker1cfc4582014-04-09 15:25:13 +02002013 * Fix detection of Clang on some Apple platforms with CMake
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002014 (found by Barry K. Nathan)
Paul Bakker59366212014-04-09 15:55:20 +02002015
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002016= PolarSSL 1.3.6 released on 2014-04-11
2017
Paul Bakker27e36d32014-04-08 12:33:37 +02002018Features
Paul Bakker4984d3c2014-04-04 15:39:37 +02002019 * Support for the ALPN SSL extension
2020 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02002021 * Enable verification of the keyUsage extension for CA and leaf
2022 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02002023 * Enable verification of the extendedKeyUsage extension
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02002024 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker4984d3c2014-04-04 15:39:37 +02002025
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002026Changes
2027 * x509_crt_info() now prints information about parsed extensions as well
2028 * pk_verify() now returns a specific error code when the signature is valid
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02002029 but shorter than the supplied length.
2030 * Use UTC time to check certificate validity.
2031 * Reject certificates with times not in UTC, per RFC 5280.
2032
Paul Bakker4224bc02014-04-08 14:36:50 +02002033Security
2034 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002035 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002036 * The notAfter date of some certificates was no longer checked since 1.3.5.
2037 This affects certificates in the user-supplied chain except the top
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01002038 certificate. If the user-supplied chain contains only one certificates,
Paul Bakker75a28602014-03-31 12:08:17 +02002039 it is not affected (ie, its notAfter date is properly checked).
2040 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02002041 TrustInSoft)
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02002042
2043Bugfix
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02002044 * The length of various ClientKeyExchange messages was not properly checked.
2045 * Some example server programs were not sending the close_notify alert.
Shuo Chen95a0d112014-04-04 21:04:40 -07002046 * Potential memory leak in mpi_exp_mod() when error occurs during
2047 calculation of RR.
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01002048 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
2049 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01002050 Gergely Budai).
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02002051 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
2052 (found by Gergely Budai)
Paul Bakker16300582014-04-11 13:28:43 +02002053 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
2054 Shuo Chen).
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02002055 * oid_get_numeric_string() used to truncate the output without returning an
2056 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002057 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Paul Bakker96d52652014-03-26 16:55:50 +01002058 * Calling pk_debug() on an RSA-alt key would segfault.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002059 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
2060 * Potential buffer overwrite in pem_write_buffer() because of low length
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002061 indication (found by Thijs Alkemade)
Paul Bakker6a28e722014-02-06 13:41:55 +01002062 * EC curves constants, which should be only in ROM since 1.3.3, were also
Paul Bakkerf2561b32014-02-06 15:11:55 +01002063 stored in RAM due to missing 'const's (found by Gergely Budai).
Paul Bakker2ceda572014-02-06 15:55:25 +01002064
2065= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002066Features
2067 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01002068 * Option to set the Curve preference order (disabled by default)
Paul Bakker66ff70d2014-03-26 11:54:05 +01002069 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakker6a28e722014-02-06 13:41:55 +01002070 * Ability to provide alternate timing implementation
2071 * Ability to force the entropy module to use SHA-256 as its basis
2072 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker47703a02014-02-06 15:01:20 +01002073 * Testing script ssl-opt.sh added for testing 'live' ssl option
2074 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01002075 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01002076 * Entropy module now supports seed writing and reading
2077
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002078Changes
2079 * Deprecated the Memory layer
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002080 * entropy_add_source(), entropy_update_manual() and entropy_gather()
Paul Bakker674e0b02014-03-26 13:26:52 +01002081 now thread-safe if POLARSSL_THREADING_C defined
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002082 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002083 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2084 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01002085 * Revamped the compat.sh interoperatibility script to include support for
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002086 testing against GnuTLS
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01002087 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01002088 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002089
Paul Bakker91c61bc2014-03-26 14:06:55 +01002090Security
2091 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002092 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002093 attack was already impossible when authentication is required).
2094 * Check notBefore timestamp of certificates and CRLs from the future.
2095 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002096 * Fixed possible buffer overflow with overlong PSK
Paul Bakkercd6d69a2014-02-06 15:43:21 +01002097 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01002098 TrustInSoft)
Paul Bakker3d52ab72014-03-07 10:33:55 +01002099
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01002100Bugfix
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01002101 * ecp_gen_keypair() does more tries to prevent failure because of
Alex Wilson73491422014-03-06 00:04:09 +10002102 statistics
2103 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002104 * Fixed testing with out-of-source builds using cmake
2105 * Fixed version-major intolerance in server
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01002106 * Fixed CMake symlinking on out-of-source builds
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002107 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002108 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002109 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01002110 Alex Wilson.)
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002111 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
Paul Bakker3d6504a2014-03-17 13:41:51 +01002112 * m_sleep() was sleeping twice too long on most Unix platforms.
2113 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakker77f4f392014-03-26 15:28:55 +01002114 send() would return an EAGAIN error when sending the ticket.
2115 * ssl_cache was leaking memory when reusing a timed out entry containing a
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01002116 client certificate.
Paul Bakker5fff23b2014-03-26 15:34:54 +01002117 * ssl_srv was leaking memory when client presented a timed out ticket
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002118 containing a client certificate
Paul Bakker2aca2412014-01-27 11:49:46 +01002119 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
Paul Bakker3eb96732014-01-22 13:08:19 +01002120 out_ctr failed
Paul Bakker0ac99ca2014-01-22 13:08:44 +01002121 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
Paul Bakker5862eee2014-01-22 14:18:03 +01002122 of one of them failed
Paul Bakker556efba2014-01-24 15:38:12 +01002123 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01002124 * x509_get_current_time() uses localtime_r() to prevent thread issues
Paul Bakker3eb96732014-01-22 13:08:19 +01002125
2126= PolarSSL 1.3.4 released on 2014-01-27
2127Features
2128 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakkerd75ba402014-01-24 16:11:17 +01002129 * Support for RIPEMD-160
Paul Bakkerb84582b2014-01-27 12:23:43 +01002130 * Support for AES CFB8 mode
2131 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01002132
2133Bugfix
2134 * Potential memory leak in bignum_selftest()
Paul Bakkerb84582b2014-01-27 12:23:43 +01002135 * Replaced expired test certificate
2136 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakker3eb96732014-01-22 13:08:19 +01002137 * net module handles timeouts on blocking sockets better (found by Tilman
Paul Bakker5bc07a32013-12-31 10:57:44 +01002138 Sauerbeck)
Paul Bakker014f1432013-12-02 14:54:01 +01002139 * Assembly format fixes in bn_mul.h
2140
Paul Bakker9dc53a92013-12-02 14:55:28 +01002141Security
2142 * Missing MPI_CHK calls added around unguarded mpi calls (found by
Paul Bakker48d78a52013-12-05 16:11:38 +01002143 TrustInSoft)
Paul Bakkerfdf94692013-12-17 13:09:31 +01002144
Paul Bakker5a607d22013-12-17 14:33:42 +01002145= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker23116fd2013-12-30 14:09:47 +01002146Features
Paul Bakkerf9c49532013-12-19 15:40:58 +01002147 * EC key generation support in gen_key app
Paul Bakker014f1432013-12-02 14:54:01 +01002148 * Support for adhering to client ciphersuite order preference
Paul Bakker7aa03752013-11-26 17:37:31 +01002149 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
2150 * Support for Curve25519
2151 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
2152 * Support for IPv6 in the NET module
Paul Bakkerc3d0d072013-12-02 14:50:49 +01002153 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakker4040d7e2013-12-02 14:52:57 +01002154 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakkerb14817d2013-12-02 22:03:23 +01002155
Paul Bakker5ab68ba2013-12-17 13:10:48 +01002156Changes
Paul Bakkerc7387912013-12-31 10:32:50 +01002157 * gen_prime() speedup
Paul Bakkera8fd3e32013-12-31 11:54:08 +01002158 * Speedup of ECP multiplication operation
Paul Bakker7aa03752013-11-26 17:37:31 +01002159 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002160 * Dropped use of readdir_r() instead of readdir() with threading support
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01002161 * More constant-time checks in the RSA module
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002162 * Split off curves from ecp.c into ecp_curves.c
Paul Bakkera9a028e2013-11-21 17:31:06 +01002163 * Curves are now stored fully in ROM
Paul Bakker7aa03752013-11-26 17:37:31 +01002164 * Memory usage optimizations in ECP module
2165 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker6f0636a2013-12-16 15:24:05 +01002166
Paul Bakkerf70fe812013-12-16 16:43:10 +01002167Bugfix
Paul Bakker1a56fc92013-12-19 13:51:24 +01002168 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakker6ea1a952013-12-31 11:16:03 +01002169 * Fixed X.509 hostname comparison (with non-regular characters)
2170 * SSL now gracefully handles missing RNG
Paul Bakker6992eb72013-12-31 11:35:16 +01002171 * Missing defines / cases for RSA_PSK key exchange
2172 * crypt_and_hash app checks MAC before final decryption
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002173 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakker956c9e02013-12-19 14:42:28 +01002174 * Memory leak in benchmark application
2175 * Fixed x509_crt_parse_path() bug on Windows platforms
2176 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2177 TrustInSoft)
Paul Bakkerf4dc1862013-11-04 17:29:42 +01002178 * Fixed potential overflow in certificate size verification in
Paul Bakker08bb1872013-10-28 14:03:26 +01002179 ssl_write_certificate() (found by TrustInSoft)
2180
Paul Bakker3f917e22013-10-28 14:16:59 +01002181Security
Paul Bakker16421222013-10-28 14:37:09 +01002182 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Paul Bakker08bb1872013-10-28 14:03:26 +01002183 TrustInSoft)
Paul Bakker7bc745b2013-10-28 14:39:49 +01002184
2185= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakkere1121b62013-10-31 14:37:37 +01002186Features
Paul Bakker7b0be682013-10-29 14:24:37 +01002187 * PK tests added to test framework
Paul Bakkere1121b62013-10-31 14:37:37 +01002188 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker7bc745b2013-10-28 14:39:49 +01002189 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker677377f2013-10-28 12:54:26 +01002190
Paul Bakker16421222013-10-28 14:37:09 +01002191Changes
Paul Bakker677377f2013-10-28 12:54:26 +01002192 * Padding checks in cipher layer are now constant-time
Paul Bakker45a2c8d2013-10-28 12:57:08 +01002193 * Value comparisons in SSL layer are now constant-time
Paul Bakker68037da2013-10-28 14:02:40 +01002194 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakker50dc8502013-10-28 21:19:10 +01002195 * SSL Renegotiation was refactored
Paul Bakker93c6aa42013-10-28 22:28:09 +01002196
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01002197Bugfix
Paul Bakkerfa6a6202013-10-28 18:48:30 +01002198 * More stringent checks in cipher layer
Paul Bakkere1121b62013-10-31 14:37:37 +01002199 * Server does not send out extensions not advertised by client
Paul Bakker677377f2013-10-28 12:54:26 +01002200 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002201 * Misc fixes and additions to dependency checks
Paul Bakkerb799dec2013-10-11 10:03:27 +02002202 * Const correctness
2203 * cert_write with selfsign should use issuer_name as subject_name
Paul Bakker376e8152013-10-15 12:44:23 +02002204 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerf34673e2013-10-15 12:46:17 +02002205 * Defines to handle UEFI environment under MSVC
Paul Bakkerb799dec2013-10-11 10:03:27 +02002206 * Server-side initiated renegotiations send HelloRequest
Paul Bakkerddba8822013-10-11 09:21:56 +02002207
2208= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakker16770332013-10-11 09:59:44 +02002209Features
Paul Bakkerbe089b02013-10-14 15:51:50 +02002210 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakkera7ea6a52013-10-15 11:55:10 +02002211 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerddba8822013-10-11 09:21:56 +02002212 * Support for RSA-PSK key-exchange and ciphersuites
2213
2214Changes
2215 * RSA blinding locks for a smaller amount of time
2216 * TLS compression only allocates working buffer once
Paul Bakkerfcc17212013-10-11 09:36:52 +02002217 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02002218 * config.h is more script-friendly
Paul Bakker4aa40d42013-10-11 10:49:24 +02002219
Paul Bakkerb7c13122013-10-11 10:51:32 +02002220Bugfix
Paul Bakker5191e922013-10-11 10:54:28 +02002221 * Missing MSVC defines added
Paul Bakkerddba8822013-10-11 09:21:56 +02002222 * Compile errors with POLARSSL_RSA_NO_CRT
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002223 * Header files with 'polarssl/'
Paul Bakker41c83d32013-03-20 14:39:14 +01002224 * Const correctness
2225 * Possible naming collision in dhm_context
2226 * Better support for MSVC
2227 * threading_set_alt() name
2228 * Added missing x509write_crt_set_version()
Paul Bakkerc8676782013-08-28 12:15:11 +02002229
2230= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker8f4ddae2013-04-15 15:09:54 +02002231Features
Paul Bakkerb91c2b52013-04-19 16:05:16 +02002232 * Elliptic Curve Cryptography module added
Paul Bakker6e339b52013-07-03 13:37:05 +02002233 * Elliptic Curve Diffie Hellman module added
2234 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
Paul Bakker2466d932013-09-28 14:40:38 +02002235 (ECDHE-based ciphersuites)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002236 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
Paul Bakkerf85778e2013-07-19 14:55:25 +02002237 (ECDSA-based ciphersuites)
2238 * Ability to specify allowed ciphersuites based on the protocol version.
2239 * PSK and DHE-PSK based ciphersuites added
2240 * Memory allocation abstraction layer added
Paul Bakkerda4d1c32013-08-14 12:24:34 +02002241 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
2242 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker936539a2013-08-14 13:49:20 +02002243 * Public Key abstraction layer added
Paul Bakkerca174fe2013-08-28 16:31:30 +02002244 * Parsing Elliptic Curve keys
2245 * Parsing Elliptic Curve certificates
Paul Bakker7fb4a792013-09-12 12:00:52 +02002246 * Support for max_fragment_length extension (RFC 6066)
2247 * Support for truncated_hmac extension (RFC 6066)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02002248 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
Paul Bakker8b817dc2013-09-25 18:03:58 +02002249 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
2250 * Support for session tickets (RFC 5077)
Paul Bakker41c83d32013-03-20 14:39:14 +01002251 * Certificate Request (CSR) generation with extensions (key_usage,
Paul Bakker9b5798d2013-03-13 13:53:00 +01002252 ns_cert_type)
Paul Bakkerd2f068e2013-08-27 21:19:20 +02002253 * X509 Certificate writing with extensions (basic_constraints,
2254 issuer_key_identifier, etc)
Paul Bakker68884e32013-01-07 18:20:04 +01002255 * Optional blinding for RSA, DHM and EC
2256 * Support for multiple active certificate / key pairs in SSL servers for
Darryl Green11999bb2018-03-13 15:22:58 +00002257 the same host (Not to be confused with SNI!)
Paul Bakker9b5798d2013-03-13 13:53:00 +01002258
Paul Bakker90f042d2013-03-11 11:38:44 +01002259Changes
Paul Bakkerc0463502013-02-14 11:19:38 +01002260 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
2261 individually
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01002262 * Introduced separate SSL Ciphersuites module that is based on
2263 Cipher and MD information
Paul Bakkerc70b9822013-04-07 22:00:46 +02002264 * Internals for SSL module adapted to have separate IV pointer that is
2265 dynamically set (Better support for hardware acceleration)
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02002266 * Moved all OID functionality to a separate module. RSA function
Paul Bakker2fbefde2013-06-29 16:01:15 +02002267 prototypes for the RSA sign and verify functions changed as a result
2268 * Split up the GCM module into a starts/update/finish cycle
Paul Bakkere2ab84f2013-06-29 18:24:32 +02002269 * Client and server now filter sent and accepted ciphersuites on minimum
2270 and maximum protocol version
Paul Bakker0be444a2013-08-27 21:55:01 +02002271 * Ability to disable server_name extension (RFC 6066)
Paul Bakkere47b34b2013-02-27 14:48:00 +01002272 * Renamed error_strerror() to the less conflicting polarssl_strerror()
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002273 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9e36f042013-06-30 14:34:05 +02002274 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakker548957d2013-08-30 10:30:02 +02002275 * All RSA operations require a random generator for blinding purposes
Paul Bakker45f21c72013-09-18 15:33:49 +02002276 * X509 core refactored
2277 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002278 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02002279 * Support faulty X509 v1 certificates with extensions
2280 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakkere47b34b2013-02-27 14:48:00 +01002281
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002282Bugfix
Paul Bakker73d44312013-05-22 13:56:26 +02002283 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02002284 * zlib compression/decompression skipped on empty blocks
Paul Bakker1e6a1752013-07-26 14:10:22 +02002285 * Support for AIX header locations in net.c module
Paul Bakker003dbad2013-09-09 17:26:14 +02002286 * Fixed file descriptor leaks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002287
Paul Bakkeraab30c12013-08-30 11:00:25 +02002288Security
2289 * RSA blinding on CRT operations to counter timing attacks
2290 (found by Cyril Arnaud and Pierre-Alain Fouque)
2291
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02002292
2293= Version 1.2.14 released 2015-05-??
2294
2295Security
2296 * Fix potential invalid memory read in the server, that allows a client to
2297 crash it remotely (found by Caj Larsson).
2298 * Fix potential invalid memory read in certificate parsing, that allows a
2299 client to crash the server remotely if client authentication is enabled
2300 (found using Codenomicon Defensics).
2301 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
2302 https://dl.acm.org/citation.cfm?id=2714625
2303
2304Bugfix
2305 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
2306 * Fix hardclock() (only used in the benchmarking program) with some
2307 versions of mingw64 (found by kxjhlele).
2308 * Fix warnings from mingw64 in timing.c (found by kxjklele).
2309 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
2310 platforms (found with Coverity Scan).
2311
2312= Version 1.2.13 released 2015-02-16
2313Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
2314 this will be made in the 1.2 branch at this point.
2315
2316Security
2317 * Fix remotely-triggerable uninitialised pointer dereference caused by
2318 crafted X.509 certificate (TLS server is not affected if it doesn't ask
2319 for a client certificate) (found using Codenomicon Defensics).
2320 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
2321 (TLS server is not affected if it doesn't ask for a client certificate)
2322 (found using Codenomicon Defensics).
2323 * Fix potential stack overflow while parsing crafted X.509 certificates
2324 (TLS server is not affected if it doesn't ask for a client certificate)
2325 found using Codenomicon Defensics).
2326 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
2327 (TLS server is not affected if it doesn't ask for a client certificate).
2328
2329Bugfix
2330 * Fix potential undefined behaviour in Camellia.
2331 * Fix memory leaks in PKCS#5 and PKCS#12.
2332 * Stack buffer overflow if ctr_drbg_update() is called with too large
2333 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
2334 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
2335 in 1.2.12).
2336 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
2337 Peter Vaskovic).
2338 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
2339 * ssl_get_verify_result() now works even if the handshake was aborted due
2340 to a failed verification (found by Fredrik Axelsson).
2341 * Skip writing and parsing signature_algorithm extension if none of the
2342 key exchanges enabled needs certificates. This fixes a possible interop
2343 issue with some servers when a zero-length extension was sent. (Reported
2344 by Peter Dettman.)
2345 * On a 0-length input, base64_encode() did not correctly set output length
2346 (found by Hendrik van den Boogaard).
2347
2348Changes
2349 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
2350 * Forbid repeated extensions in X.509 certificates.
2351 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
2352 length of an X.509 verification chain (default = 8).
Paul Bakkera6c5ea22014-10-24 16:26:29 +02002353= Version 1.2.12 released 2014-10-24
2354
2355Security
2356 * Remotely-triggerable memory leak when parsing some X.509 certificates
2357 (server is not affected if it doesn't ask for a client certificate).
2358 (Found using Codenomicon Defensics.)
2359
2360Bugfix
2361 * Fix potential bad read in parsing ServerHello (found by Adrien
2362 Vialletelle).
2363 * ssl_close_notify() could send more than one message in some circumstances
2364 with non-blocking I/O.
2365 * x509_crt_parse() did not increase total_failed on PEM error
2366 * Fix compiler warnings on iOS (found by Sander Niemeijer).
2367 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
2368 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
2369 * ssl_read() could return non-application data records on server while
2370 renegotation was pending, and on client when a HelloRequest was received.
2371 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
2372
2373Changes
2374 * X.509 certificates with more than one AttributeTypeAndValue per
2375 RelativeDistinguishedName are not accepted any more.
2376 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2377 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
2378 * Accept spaces at end of line or end of buffer in base64_decode().
2379
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02002380= Version 1.2.11 released 2014-07-11
2381Features
2382 * Entropy module now supports seed writing and reading
2383
2384Changes
2385 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
2386 * Improvements to the CMake build system, contributed by Julian Ospald.
2387 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2388 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
2389 * Improvements to tests/Makefile, contributed by Oden Eriksson.
2390 * Use UTC time to check certificate validity.
2391 * Reject certificates with times not in UTC, per RFC 5280.
2392 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2393 against unwanted compiler optimizations
2394
2395Security
2396 * Forbid change of server certificate during renegotiation to prevent
2397 "triple handshake" attack when authentication mode is optional (the
2398 attack was already impossible when authentication is required).
2399 * Check notBefore timestamp of certificates and CRLs from the future.
2400 * Forbid sequence number wrapping
2401 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2402 TrustInSoft)
2403 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2404 It was possible to crash the server (and client) using crafted messages
2405 when a GCM suite was chosen.
2406
2407Bugfix
2408 * Fixed X.509 hostname comparison (with non-regular characters)
2409 * SSL now gracefully handles missing RNG
2410 * crypt_and_hash app checks MAC before final decryption
2411 * Fixed x509_crt_parse_path() bug on Windows platforms
2412 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2413 TrustInSoft)
2414 * Fixed potential overflow in certificate size verification in
2415 ssl_write_certificate() (found by TrustInSoft)
2416 * Fix ASM format in bn_mul.h
2417 * Potential memory leak in bignum_selftest()
2418 * Replaced expired test certificate
2419 * ssl_mail_client now terminates lines with CRLF, instead of LF
2420 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
2421 * Fixed testing with out-of-source builds using cmake
2422 * Fixed version-major intolerance in server
2423 * Fixed CMake symlinking on out-of-source builds
2424 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2425 Alex Wilson.)
2426 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2427 out_ctr failed
2428 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2429 of one of them failed
2430 * x509_get_current_time() uses localtime_r() to prevent thread issues
2431 * Some example server programs were not sending the close_notify alert.
2432 * Potential memory leak in mpi_exp_mod() when error occurs during
2433 calculation of RR.
2434 * Improve interoperability by not writing extension length in ClientHello
2435 when no extensions are present (found by Matthew Page)
2436 * rsa_check_pubkey() now allows an E up to N
2437 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
2438 * mpi_fill_random() was creating numbers larger than requested on
2439 big-endian platform when size was not an integer number of limbs
2440 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
2441 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2442 size (found by TrustInSoft)
2443 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
2444 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2445 interpret semicolons as comment delimiters (found by Barry K. Nathan).
2446 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
2447 * Fix base64_decode() to return and check length correctly (in case of
2448 tight buffers)
2449
Paul Bakker3a2c0562013-10-07 16:22:05 +02002450= Version 1.2.10 released 2013-10-07
2451Changes
2452 * Changed RSA blinding to a slower but thread-safe version
2453
2454Bugfix
2455 * Fixed memory leak in RSA as a result of introduction of blinding
2456 * Fixed ssl_pkcs11_decrypt() prototype
2457 * Fixed MSVC project files
2458
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002459= Version 1.2.9 released 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002460Changes
2461 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
2462
2463Bugfix
2464 * Fixed potential memory leak when failing to resume a session
2465 * Fixed potential file descriptor leaks (found by Remi Gacogne)
2466 * Minor fixes
2467
2468Security
2469 * Fixed potential heap buffer overflow on large hostname setting
2470 * Fixed potential negative value misinterpretation in load_file()
2471 * RSA blinding on CRT operations to counter timing attacks
2472 (found by Cyril Arnaud and Pierre-Alain Fouque)
2473
Paul Bakkerde656232013-06-24 19:07:34 +02002474= Version 1.2.8 released 2013-06-19
2475Features
2476 * Parsing of PKCS#8 encrypted private key files
2477 * PKCS#12 PBE and derivation functions
2478 * Centralized module option values in config.h to allow user-defined
2479 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
2480
2481Changes
2482 * HAVEGE random generator disabled by default
2483 * Internally split up x509parse_key() into a (PEM) handler function
2484 and specific DER parser functions for the PKCS#1 and unencrypted
2485 PKCS#8 private key formats
2486 * Added mechanism to provide alternative implementations for all
2487 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
Darryl Green11999bb2018-03-13 15:22:58 +00002488 config.h)
Paul Bakkerde656232013-06-24 19:07:34 +02002489 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
2490 old PBKDF2 module
2491
2492Bugfix
2493 * Secure renegotiation extension should only be sent in case client
2494 supports secure renegotiation
2495 * Fixed offset for cert_type list in ssl_parse_certificate_request()
2496 * Fixed const correctness issues that have no impact on the ABI
2497 * x509parse_crt() now better handles PEM error situations
2498 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2499 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00002500 certificates
Paul Bakkerde656232013-06-24 19:07:34 +02002501 * x509parse_crtpath() is now reentrant and uses more portable stat()
2502 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
2503 * Fixed values for 2-key Triple DES in cipher layer
2504 * ssl_write_certificate_request() can handle empty ca_chain
2505
2506Security
2507 * A possible DoS during the SSL Handshake, due to faulty parsing of
2508 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2509
2510= Version 1.2.7 released 2013-04-13
2511Features
2512 * Ability to specify allowed ciphersuites based on the protocol version.
2513
2514Changes
2515 * Default Blowfish keysize is now 128-bits
2516 * Test suites made smaller to accommodate Raspberry Pi
2517
2518Bugfix
2519 * Fix for MPI assembly for ARM
2520 * GCM adapted to support sizes > 2^29
2521
Paul Bakkerc0463502013-02-14 11:19:38 +01002522= Version 1.2.6 released 2013-03-11
2523Bugfix
2524 * Fixed memory leak in ssl_free() and ssl_reset() for active session
2525 * Corrected GCM counter incrementation to use only 32-bits instead of
Paul Bakkere47b34b2013-02-27 14:48:00 +01002526 128-bits (found by Yawning Angel)
Paul Bakkere3e4a592013-02-28 10:20:53 +01002527 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakker37286a52013-03-06 16:55:11 +01002528 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01002529 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakkerd66f0702013-01-31 16:57:45 +01002530
Paul Bakkerb3869132013-02-28 17:21:01 +01002531Changes
2532 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
2533 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
2534 PKCS#1 v2.1 functions
Paul Bakkera43231c2013-02-28 17:33:49 +01002535 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
2536 or rsa_rsaes_oaep_decrypt()
Paul Bakker78a8c712013-03-06 17:01:52 +01002537 * Re-added handling for SSLv2 Client Hello when the define
2538 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkere81beda2013-03-06 17:40:46 +01002539 * The SSL session cache module (ssl_cache) now also retains peer_cert
2540 information (not the entire chain)
Paul Bakkerb3869132013-02-28 17:21:01 +01002541
Paul Bakkere47b34b2013-02-27 14:48:00 +01002542Security
2543 * Removed further timing differences during SSL message decryption in
2544 ssl_decrypt_buf()
Paul Bakker8804f692013-02-28 18:06:26 +01002545 * Removed timing differences due to bad padding from
2546 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2547 operations
Paul Bakkere47b34b2013-02-27 14:48:00 +01002548
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002549= Version 1.2.5 released 2013-02-02
2550Changes
2551 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakkerd66f0702013-01-31 16:57:45 +01002552 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01002553 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker40865c82013-01-31 17:13:13 +01002554 * Sending of security-relevant alert messages that do not break
2555 interoperability can be switched on/off with the flag
Paul Bakkera35aa542013-03-06 17:06:21 +01002556 POLARSSL_SSL_ALL_ALERT_MESSAGES
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002557
Paul Bakker45829992013-01-03 14:52:21 +01002558Security
2559 * Removed timing differences during SSL message decryption in
2560 ssl_decrypt_buf() due to badly formatted padding
2561
Paul Bakker14c56a32013-01-25 17:11:37 +01002562= Version 1.2.4 released 2013-01-25
Paul Bakker1961b702013-01-25 14:49:24 +01002563Changes
Paul Bakker68884e32013-01-07 18:20:04 +01002564 * More advanced SSL ciphersuite representation and moved to more dynamic
2565 SSL core
Paul Bakker1961b702013-01-25 14:49:24 +01002566 * Added ssl_handshake_step() to allow single stepping the handshake process
2567
Paul Bakker40628ba2013-01-03 10:50:31 +01002568Bugfix
2569 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakker21dca692013-01-03 11:41:08 +01002570 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker9c94cdd2013-01-22 13:45:33 +01002571 * Correctly handle CertificateRequest message in client for <= TLS 1.1
2572 without DN list
Paul Bakker40628ba2013-01-03 10:50:31 +01002573
Paul Bakkerfb1ba782012-11-26 16:28:25 +01002574= Version 1.2.3 released 2012-11-26
2575Bugfix
2576 * Server not always sending correct CertificateRequest message
2577
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002578= Version 1.2.2 released 2012-11-24
Paul Bakkere667c982012-11-20 13:50:22 +01002579Changes
2580 * Added p_hw_data to ssl_context for context specific hardware acceleration
2581 data
Hanno Becker01a0e072017-07-26 11:49:40 +01002582 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkere667c982012-11-20 13:50:22 +01002583
Paul Bakker7c90da92012-11-23 14:02:40 +01002584Bugfixes
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002585 * Fixed client authentication compatibility
2586 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker7c90da92012-11-23 14:02:40 +01002587
Paul Bakker14926332012-11-20 10:58:09 +01002588= Version 1.2.1 released 2012-11-20
Paul Bakker34d8dbc2012-11-14 12:11:38 +00002589Changes
2590 * Depth that the certificate verify callback receives is now numbered
2591 bottom-up (Peer cert depth is 0)
2592
Paul Bakker7a2538e2012-11-02 10:59:36 +00002593Bugfixes
2594 * Fixes for MSVC6
Paul Bakkerd9374b02012-11-02 11:02:58 +00002595 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakkerf02c5642012-11-13 10:25:21 +00002596 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2597 Pégourié-Gonnard)
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01002598 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2599 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00002600 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakker7a2538e2012-11-02 10:59:36 +00002601
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002602= Version 1.2.0 released 2012-10-31
Paul Bakkerfab5c822012-02-06 16:45:10 +00002603Features
2604 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
2605 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
2606 default!
Paul Bakkera8cd2392012-02-11 16:09:32 +00002607 * Added support for wildcard certificates
2608 * Added support for multi-domain certificates through the X509 Subject
2609 Alternative Name extension
Paul Bakkerbdb912d2012-02-13 23:11:30 +00002610 * Added preliminary ASN.1 buffer writing support
2611 * Added preliminary X509 Certificate Request writing support
2612 * Added key_app_writer example application
2613 * Added cert_req example application
Paul Bakker89e80c92012-03-20 13:50:09 +00002614 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker48916f92012-09-16 19:57:18 +00002615 * Added TLS 1.2 support (RFC 5246)
Paul Bakkerca4ab492012-04-18 14:23:57 +00002616 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker01cc3942012-05-08 08:36:15 +00002617 * Added commandline error code convertor (util/strerror)
Paul Bakker05ef8352012-05-08 09:17:57 +00002618 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002619 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002620 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker8d914582012-06-04 12:46:42 +00002621 * Added X509 CA Path support
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00002622 * Added Thumb assembly optimizations
Paul Bakker2770fbd2012-07-03 13:30:23 +00002623 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002624 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakkerf518b162012-08-23 13:03:18 +00002625 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker48916f92012-09-16 19:57:18 +00002626 * Added Secure Renegotiation (RFC 5746)
Paul Bakker29b64762012-09-25 09:36:44 +00002627 * Added predefined DHM groups from RFC 5114
Paul Bakker0a597072012-09-25 21:55:46 +00002628 * Added simple SSL session cache implementation
Paul Bakker5701cdc2012-09-27 21:49:42 +00002629 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1d29fb52012-09-28 13:28:45 +00002630 * Added option to add minimum accepted SSL/TLS protocol version
Paul Bakkerfab5c822012-02-06 16:45:10 +00002631
Paul Bakker1504af52012-02-11 16:17:43 +00002632Changes
2633 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker048d04e2012-02-12 17:31:04 +00002634 * AES code only check for Padlock once
Paul Bakker6b906e52012-05-08 12:01:43 +00002635 * Fixed const-correctness mpi_get_bit()
2636 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker186751d2012-05-08 13:16:14 +00002637 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker4d2c1242012-05-10 14:12:46 +00002638 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakker5b377842012-05-16 07:57:36 +00002639 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002640 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
2641 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkerec636f32012-09-09 19:17:02 +00002642 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker0a597072012-09-25 21:55:46 +00002643 * Revamped session resumption handling
Paul Bakkereb2c6582012-09-27 19:15:01 +00002644 * Generalized external private key implementation handling (like PKCS#11)
2645 in SSL/TLS
Paul Bakker915275b2012-09-28 07:10:55 +00002646 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker5c2364c2012-10-01 14:41:15 +00002647 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker645ce3a2012-10-31 12:32:41 +00002648 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker1504af52012-02-11 16:17:43 +00002649
Paul Bakker37824582012-03-22 14:10:22 +00002650Bugfix
Paul Bakker7beceb22012-03-22 14:19:49 +00002651 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2652 Hui Dong)
Paul Bakker430ffbe2012-05-01 08:14:20 +00002653 * Fixed potential heap corruption in x509_name allocation
Paul Bakker5b377842012-05-16 07:57:36 +00002654 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkerf6198c12012-05-16 08:02:29 +00002655 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2656 #52)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002657 * Handle encryption with private key and decryption with public key as per
Darryl Green11999bb2018-03-13 15:22:58 +00002658 RFC 2313
Paul Bakkercefb3962012-06-27 11:51:09 +00002659 * Handle empty certificate subject names
Paul Bakker535e97d2012-08-23 10:49:55 +00002660 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00002661 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker995a2152012-09-25 08:19:56 +00002662 with carry rollover (found by Ruslan Yushchenko)
Paul Bakkerb00ca422012-09-25 12:10:00 +00002663 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker4f024b72012-10-30 07:29:57 +00002664 * Fixed MPI assembly for SPARC64 platform
Paul Bakker37824582012-03-22 14:10:22 +00002665
Paul Bakker452d5322012-04-05 12:07:34 +00002666Security
Paul Bakker3c16db92012-07-05 13:58:08 +00002667 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2668 Vanderbeken)
Paul Bakker452d5322012-04-05 12:07:34 +00002669
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002670= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002671Bugfix
2672 * Fixed potential memory leak when failing to resume a session
2673 * Fixed potential file descriptor leaks
2674
2675Security
2676 * Potential buffer-overflow for ssl_read_record() (independently found by
2677 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
2678 * Potential negative value misinterpretation in load_file()
2679 * Potential heap buffer overflow on large hostname setting
2680
Paul Bakker248fff52013-06-24 19:08:50 +02002681= Version 1.1.7 released on 2013-06-19
2682Changes
2683 * HAVEGE random generator disabled by default
2684
2685Bugfix
2686 * x509parse_crt() now better handles PEM error situations
2687 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2688 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00002689 certificates
Paul Bakker248fff52013-06-24 19:08:50 +02002690 * Fixed values for 2-key Triple DES in cipher layer
2691 * ssl_write_certificate_request() can handle empty ca_chain
2692
2693Security
2694 * A possible DoS during the SSL Handshake, due to faulty parsing of
2695 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2696
2697= Version 1.1.6 released on 2013-03-11
2698Bugfix
2699 * Fixed net_bind() for specified IP addresses on little endian systems
2700
2701Changes
2702 * Allow enabling of dummy error_strerror() to support some use-cases
2703 * Debug messages about padding errors during SSL message decryption are
2704 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
2705
2706Security
2707 * Removed timing differences during SSL message decryption in
2708 ssl_decrypt_buf()
2709 * Removed timing differences due to bad padding from
2710 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2711 operations
2712
Paul Bakker9d2bb652013-01-25 16:07:49 +01002713= Version 1.1.5 released on 2013-01-16
2714Bugfix
2715 * Fixed MPI assembly for SPARC64 platform
2716 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
2717 * mpi_add_abs() now correctly handles adding short numbers to long numbers
2718 with carry rollover
2719 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
2720 * Prevent reading over buffer boundaries on X509 certificate parsing
2721 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2722 #52)
2723 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2724 Pégourié-Gonnard)
2725 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2726 Pégourié-Gonnard)
2727 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2728 * Memory leak when using RSA_PKCS_V21 operations fixed
2729 * Handle encryption with private key and decryption with public key as per
2730 RFC 2313
2731 * Fixes for MSVC6
2732
2733Security
2734 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2735 Vanderbeken)
2736
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002737= Version 1.1.4 released on 2012-05-31
2738Bugfix
2739 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2740 * Fixed potential heap corruption in x509_name allocation
2741 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2742
Paul Bakkerfad38932012-05-08 09:04:04 +00002743= Version 1.1.3 released on 2012-04-29
2744Bugfix
2745 * Fixed random MPI generation to not generate more size than requested.
2746
2747= Version 1.1.2 released on 2012-04-26
2748Bugfix
2749 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2750 Hui Dong)
2751
2752Security
2753 * Fixed potential memory corruption on miscrafted client messages (found by
2754 Frama-C team at CEA LIST)
2755 * Fixed generation of DHM parameters to correct length (found by Ruslan
2756 Yushchenko)
2757
Paul Bakker99955bf2012-01-23 09:31:41 +00002758= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002759Bugfix
2760 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2761 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002762 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002763 * Fixed multiple compiler warnings for VS6 and armcc
2764 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002765
Paul Bakker08a50882011-12-22 09:43:57 +00002766= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002767Features
2768 * Added ssl_session_reset() to allow better multi-connection pools of
2769 SSL contexts without needing to set all non-connection-specific
Darryl Green11999bb2018-03-13 15:22:58 +00002770 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002771 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2772 supported version to a server to help buggy server implementations.
Darryl Green11999bb2018-03-13 15:22:58 +00002773 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002774 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2775 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002776 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002777 * Added a generic entropy accumulator that provides support for adding
2778 custom entropy sources and added some generic and platform dependent
Darryl Green11999bb2018-03-13 15:22:58 +00002779 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002780
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002781Changes
2782 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002783 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2784 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002785 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002786 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002787 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002788 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2789 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002790 * Changed the defined key-length of DES ciphers in cipher.h to include the
2791 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002792 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002793 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002794 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2795 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002796 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2797 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002798 * Changed the used random function pointer to more flexible format. Renamed
2799 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002800 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002801 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002802 * Added permissive certificate parsing to x509parse_crt() and
2803 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002804 encountering a parse-error. Beware that the meaning of return values has
2805 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002806 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002807
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002808Bugfix
2809 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2810 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002811 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2812 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002813 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2814 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002815 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2816 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002817 * If certificate serial is longer than 32 octets, serial number is now
2818 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002819 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002820 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002821 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002822 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002823
Paul Bakker968bc982011-07-27 17:03:00 +00002824= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002825Features
2826 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002827 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002828
Paul Bakker42e59812011-06-09 15:55:41 +00002829Changes
2830 * The generic cipher and message digest layer now have normal error
2831 codes instead of integers
2832
Paul Bakker887bd502011-06-08 13:10:54 +00002833Bugfix
2834 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2835 #18)
2836
Paul Bakker828acb22011-05-27 09:25:42 +00002837= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002838Features
2839 * Added additional Cipher Block Modes to symmetric ciphers
2840 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002841 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002842 * Functions requiring File System functions can now be disabled
2843 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002844 * A error_strerror function() has been added to translate between
2845 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002846 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2847 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002848 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002849
Paul Bakker23986e52011-04-24 08:57:21 +00002850Changes
2851 * Major argument / variable rewrite. Introduced use of size_t
2852 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002853 better unsigned / signed use. Renamed internal bigint types
2854 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002855 * mpi_init() and mpi_free() now only accept a single MPI
2856 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002857 * The error codes have been remapped and combining error codes
2858 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002859 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002860 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2861 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002862 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2863 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2864 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2865 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002866 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2867 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002868 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002869
Paul Bakker3efa5752011-04-01 12:23:26 +00002870= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002871Features
2872 * Added support for PKCS#1 v2.1 encoding and thus support
2873 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002874 * Reading of Public Key files incorporated into default x509
2875 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002876 * Added mpi_fill_random() for centralized filling of big numbers
2877 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002878
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002879Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002880 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002881 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002882 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002883 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002884 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002885
2886Bugfix
2887 * Debug output of MPI's now the same independent of underlying
2888 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002889 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002890 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2891 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002892 * Fixed proper handling of RSASSA-PSS verification with variable
2893 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002894
Paul Bakker345a6fe2011-02-28 21:20:02 +00002895= Version 0.99-pre3 released on 2011-02-28
2896This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002897Features
2898 * Parsing PEM private keys encrypted with DES and AES
2899 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002900 * Added crl_app program to allow easy reading and
2901 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00002902
2903Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002904 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00002905 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01002906 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00002907
Paul Bakker400ff6f2011-02-20 10:40:16 +00002908Bugfixes
2909 * Corrected parsing of UTCTime dates before 1990 and
2910 after 1950
2911 * Support more exotic OID's when parsing certificates
Darryl Green11999bb2018-03-13 15:22:58 +00002912 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002913 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002914 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002915 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002916 * Do not bail out if no client certificate specified. Try
2917 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01002918 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002919
Paul Bakker345a6fe2011-02-28 21:20:02 +00002920Security fixes
2921 * Fixed a possible Man-in-the-Middle attack on the
2922 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01002923 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00002924
Paul Bakker9fc46592011-01-30 16:59:02 +00002925= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00002926Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00002927Note: Most of these features have been donated by Fox-IT
2928 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00002929 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00002930 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00002931 certificate fields, including Key Usage
2932 * Improved certificate verification and verification
2933 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00002934 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00002935 * Improvements to support integration in other
2936 applications:
2937 + Added generic message digest and cipher wrapper
2938 + Improved information about current capabilities,
2939 status, objects and configuration
2940 + Added verification callback on certificate chain
2941 verification to allow external blacklisting
Darryl Green11999bb2018-03-13 15:22:58 +00002942 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00002943 * Added support for PKCS#11 through the use of the
2944 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00002945
Paul Bakkerb6194992011-01-16 21:40:22 +00002946Changes
2947 * x509parse_time_expired() checks time in addition to
2948 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00002949 * The ciphers member of ssl_context and the cipher member
2950 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01002951 ciphersuite respectively. This clarifies the difference
2952 with the generic cipher layer and is better naming
2953 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00002954
Paul Bakker99ed6782011-01-05 14:48:42 +00002955= Version 0.14.0 released on 2010-08-16
2956Features
2957 * Added support for SSL_EDH_RSA_AES_128_SHA and
2958 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
2959 * Added compile-time and run-time version information
2960 * Expanded ssl_client2 arguments for more flexibility
2961 * Added support for TLS v1.1
2962
2963Changes
2964 * Made Makefile cleaner
2965 * Removed dependency on rand() in rsa_pkcs1_encrypt().
2966 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01002967 changed the prototype of rsa_pkcs1_encrypt(),
2968 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00002969 * Some SSL defines were renamed in order to avoid
2970 future confusion
2971
2972Bug fixes
2973 * Fixed CMake out of source build for tests (found by
2974 kkert)
2975 * rsa_check_private() now supports PKCS1v2 keys as well
2976 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
2977 generator
2978
2979= Version 0.13.1 released on 2010-03-24
2980Bug fixes
2981 * Fixed Makefile in library that was mistakenly merged
2982 * Added missing const string fixes
2983
2984= Version 0.13.0 released on 2010-03-21
2985Features
2986 * Added option parsing for host and port selection to
2987 ssl_client2
2988 * Added support for GeneralizedTime in X509 parsing
2989 * Added cert_app program to allow easy reading and
2990 printing of X509 certificates from file or SSL
2991 connection.
2992
2993Changes
2994 * Added const correctness for main code base
2995 * X509 signature algorithm determination is now
2996 in a function to allow easy future expansion
2997 * Changed symmetric cipher functions to
2998 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01002999 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00003000 * Added reset function for HMAC context as speed-up
3001 for specific use-cases
3002
3003Bug fixes
3004 * Fixed bug resulting in failure to send the last
3005 certificate in the chain in ssl_write_certificate() and
3006 ssl_write_certificate_request() (found by fatbob)
3007 * Added small fixes for compiler warnings on a Mac
3008 (found by Frank de Brabander)
3009 * Fixed algorithmic bug in mpi_is_prime() (found by
3010 Smbat Tonoyan)
3011
3012= Version 0.12.1 released on 2009-10-04
3013Changes
3014 * Coverage test definitions now support 'depends_on'
3015 tagging system.
3016 * Tests requiring specific hashing algorithms now honor
3017 the defines.
3018
3019Bug fixes
3020 * Changed typo in #ifdef in x509parse.c (found
3021 by Eduardo)
3022
3023= Version 0.12.0 released on 2009-07-28
3024Features
3025 * Added CMake makefiles as alternative to regular Makefiles.
3026 * Added preliminary Code Coverage tests for AES, ARC4,
3027 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
3028 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
3029 and X509parse.
3030
3031Changes
3032 * Error codes are not (necessarily) negative. Keep
3033 this is mind when checking for errors.
3034 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
3035 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
3036 * Changed interface for AES and Camellia setkey functions
3037 to indicate invalid key lengths.
3038
3039Bug fixes
3040 * Fixed include location of endian.h on FreeBSD (found by
3041 Gabriel)
3042 * Fixed include location of endian.h and name clash on
3043 Apples (found by Martin van Hensbergen)
3044 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
3045 required HMAC ipad and opad variables are not cleared.
3046 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01003047 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00003048 POLARSSL_HAVE_LONGLONG not defined (found by Giles
3049 Bathgate).
3050 * Fixed incorrect handling of negative strings in
3051 mpi_read_string() (found by code coverage tests).
3052 * Fixed segfault on handling empty rsa_context in
3053 rsa_check_pubkey() and rsa_check_privkey() (found by
3054 code coverage tests).
3055 * Fixed incorrect handling of one single negative input
3056 value in mpi_add_abs() (found by code coverage tests).
3057 * Fixed incorrect handling of negative first input
3058 value in mpi_sub_abs() (found by code coverage tests).
3059 * Fixed incorrect handling of negative first input
3060 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
3061 change also affects mpi_write_string() (found by code
3062 coverage tests).
3063 * Corrected is_prime() results for 0, 1 and 2 (found by
3064 code coverage tests).
3065 * Fixed Camellia and XTEA for 64-bit Windows systems.
3066
3067= Version 0.11.1 released on 2009-05-17
3068 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
3069 SHA-512 in rsa_pkcs1_sign()
3070
3071= Version 0.11.0 released on 2009-05-03
3072 * Fixed a bug in mpi_gcd() so that it also works when both
3073 input numbers are even and added testcases to check
3074 (found by Pierre Habouzit).
3075 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
3076 one way hash functions with the PKCS#1 v1.5 signing and
3077 verification.
3078 * Fixed minor bug regarding mpi_gcd located within the
3079 POLARSSL_GENPRIME block.
3080 * Fixed minor memory leak in x509parse_crt() and added better
3081 handling of 'full' certificate chains (found by Mathias
3082 Olsson).
3083 * Centralized file opening and reading for x509 files into
3084 load_file()
3085 * Made definition of net_htons() endian-clean for big endian
3086 systems (Found by Gernot).
3087 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01003088 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00003089 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
3090 responsible for crashes and unwanted behaviour.
3091 * Added support for Certificate Revocation List (CRL) parsing.
3092 * Added support for CRL revocation to x509parse_verify() and
3093 SSL/TLS code.
3094 * Fixed compatibility of XTEA and Camellia on a 64-bit system
3095 (found by Felix von Leitner).
3096
3097= Version 0.10.0 released on 2009-01-12
3098 * Migrated XySSL to PolarSSL
3099 * Added XTEA symmetric cipher
3100 * Added Camellia symmetric cipher
3101 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
3102 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
3103 * Fixed dangerous bug that can cause a heap overflow in
3104 rsa_pkcs1_decrypt (found by Christophe Devine)
3105
3106================================================================
3107XySSL ChangeLog
3108
3109= Version 0.9 released on 2008-03-16
3110
3111 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
3112 * Enabled support for large files by default in aescrypt2.c
3113 * Preliminary openssl wrapper contributed by David Barrett
3114 * Fixed a bug in ssl_write() that caused the same payload to
3115 be sent twice in non-blocking mode when send returns EAGAIN
3116 * Fixed ssl_parse_client_hello(): session id and challenge must
3117 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
3118 * Added user-defined callback debug function (Krystian Kolodziej)
3119 * Before freeing a certificate, properly zero out all cert. data
3120 * Fixed the "mode" parameter so that encryption/decryption are
3121 not swapped on PadLock; also fixed compilation on older versions
3122 of gcc (bug reported by David Barrett)
3123 * Correctly handle the case in padlock_xcryptcbc() when input or
3124 ouput data is non-aligned by falling back to the software
3125 implementation, as VIA Nehemiah cannot handle non-aligned buffers
3126 * Fixed a memory leak in x509parse_crt() which was reported by Greg
3127 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
3128 Matthew Page who reported several bugs
3129 * Fixed x509_get_ext() to accept some rare certificates which have
3130 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
3131 * Added support on the client side for the TLS "hostname" extension
3132 (patch contributed by David Patino)
3133 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
3134 string is passed as the CN (bug reported by spoofy)
3135 * Added an option to enable/disable the BN assembly code
3136 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
3137 * Disabled obsolete hash functions by default (MD2, MD4); updated
3138 selftest and benchmark to not test ciphers that have been disabled
3139 * Updated x509parse_cert_info() to correctly display byte 0 of the
3140 serial number, setup correct server port in the ssl client example
3141 * Fixed a critical denial-of-service with X.509 cert. verification:
3142 peer may cause xyssl to loop indefinitely by sending a certificate
3143 for which the RSA signature check fails (bug reported by Benoit)
3144 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
3145 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
3146 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
3147 * Modified ssl_parse_client_key_exchange() to protect against
3148 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
3149 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
3150 * Updated rsa_gen_key() so that ctx->N is always nbits in size
3151 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
3152 David Barrett and Dusan Semen
3153
3154= Version 0.8 released on 2007-10-20
3155
3156 * Modified the HMAC functions to handle keys larger
3157 than 64 bytes, thanks to Stephane Desneux and gary ng
3158 * Fixed ssl_read_record() to properly update the handshake
3159 message digests, which fixes IE6/IE7 client authentication
3160 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
3161 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
3162 * Added user-defined callbacks for handling I/O and sessions
3163 * Added lots of debugging output in the SSL/TLS functions
3164 * Added preliminary X.509 cert. writing by Pascal Vizeli
3165 * Added preliminary support for the VIA PadLock routines
3166 * Added AES-CFB mode of operation, contributed by chmike
3167 * Added an SSL/TLS stress testing program (ssl_test.c)
3168 * Updated the RSA PKCS#1 code to allow choosing between
3169 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
3170 * Updated ssl_read() to skip 0-length records from OpenSSL
3171 * Fixed the make install target to comply with *BSD make
3172 * Fixed a bug in mpi_read_binary() on 64-bit platforms
3173 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
3174 * Fixed a long standing memory leak in mpi_is_prime()
3175 * Replaced realloc with malloc in mpi_grow(), and set
3176 the sign of zero as positive in mpi_init() (reported
3177 by Jonathan M. McCune)
3178
3179= Version 0.7 released on 2007-07-07
3180
3181 * Added support for the MicroBlaze soft-core processor
3182 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
3183 connections from being established with non-blocking I/O
3184 * Fixed a couple bugs in the VS6 and UNIX Makefiles
3185 * Fixed the "PIC register ebx clobbered in asm" bug
3186 * Added HMAC starts/update/finish support functions
3187 * Added the SHA-224, SHA-384 and SHA-512 hash functions
3188 * Fixed the net_set_*block routines, thanks to Andreas
3189 * Added a few demonstration programs: md5sum, sha1sum,
3190 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
3191 * Added new bignum import and export helper functions
3192 * Rewrote README.txt in program/ssl/ca to better explain
3193 how to create a test PKI
3194
3195= Version 0.6 released on 2007-04-01
3196
3197 * Ciphers used in SSL/TLS can now be disabled at compile
3198 time, to reduce the memory footprint on embedded systems
3199 * Added multiply assembly code for the TriCore and modified
3200 havege_struct for this processor, thanks to David Patiño
3201 * Added multiply assembly code for 64-bit PowerPCs,
3202 thanks to Peking University and the OSU Open Source Lab
3203 * Added experimental support of Quantum Cryptography
3204 * Added support for autoconf, contributed by Arnaud Cornet
3205 * Fixed "long long" compilation issues on IA-64 and PPC64
3206 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
3207 was not being correctly defined on ARM and MIPS
3208
3209= Version 0.5 released on 2007-03-01
3210
3211 * Added multiply assembly code for SPARC and Alpha
3212 * Added (beta) support for non-blocking I/O operations
3213 * Implemented session resuming and client authentication
3214 * Fixed some portability issues on WinCE, MINIX 3, Plan9
3215 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
3216 * Improved the performance of the EDH key exchange
3217 * Fixed a bug that caused valid packets with a payload
3218 size of 16384 bytes to be rejected
3219
3220= Version 0.4 released on 2007-02-01
3221
3222 * Added support for Ephemeral Diffie-Hellman key exchange
3223 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
3224 * Various improvement to the modular exponentiation code
3225 * Rewrote the headers to generate the API docs with doxygen
3226 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
3227 generated) and in ssl_parse_client_hello (max. client
3228 version was not properly set), thanks to Didier Rebeix
3229 * Fixed another bug in ssl_parse_client_hello: clients with
3230 cipherlists larger than 96 bytes were incorrectly rejected
3231 * Fixed a couple memory leak in x509_read.c
3232
3233= Version 0.3 released on 2007-01-01
3234
3235 * Added server-side SSLv3 and TLSv1.0 support
3236 * Multiple fixes to enhance the compatibility with g++,
3237 thanks to Xosé Antón Otero Ferreira
3238 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01003239 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00003240 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
3241 * Updated timing.c for improved compatibility with i386
3242 and 486 processors, thanks to Arnaud Cornet
3243
3244= Version 0.2 released on 2006-12-01
3245
3246 * Updated timing.c to support ARM and MIPS arch
3247 * Updated the MPI code to support 8086 on MSVC 1.5
3248 * Added the copyright notice at the top of havege.h
3249 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
3250 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
3251 * Fixed a bug reported by Torsten Lauter in ssl_read_record
3252 * Fixed a bug in rsa_check_privkey that would wrongly cause
3253 valid RSA keys to be dismissed (thanks to oldwolf)
3254 * Fixed a bug in mpi_is_prime that caused some primes to fail
3255 the Miller-Rabin primality test
3256
3257 I'd also like to thank Younès Hafri for the CRUX linux port,
3258 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
3259 who maintains the Debian package :-)
3260
3261= Version 0.1 released on 2006-11-01