blob: ace0c2880c17c78e804ebe8922aa5b1c656b8636 [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
5Bugfix
6 * Fix a compilation issue with mbedtls_ecp_restart_ctx not being defined
7 when MBEDTLS_ECP_ALT is defined. Reported by jwhui. Fixes #2242.
Ron Eldor822b8342018-11-25 10:38:34 +02008 * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined.
9 Raised as a comment in #1996.
Hanno Becker8116ef72018-10-25 12:42:08 +010010 * Reduce the stack consumption of mbedtls_mpi_fill_random() which could
11 previously lead to a stack overflow on constrained targets.
Simon Butcher874b6042019-01-08 16:34:19 +000012 * Add `MBEDTLS_SELF_TEST` for the mbedtls_self_test functions
13 in the header files, which missed the precompilation check. #971
Jeffrey Martin60269ee2019-01-15 09:03:24 -060014 * Fix clobber list in MIPS assembly for large integer multiplication.
15 Previously, this could lead to functionally incorrect assembly being
16 produced by some optimizing compilers, showing up as failures in
17 e.g. RSA or ECC signature operations. Reported in #1722, fix suggested
Jeffrey Martin55a23e42019-01-16 09:27:11 -060018 by Aurelien Jarno and submitted by Jeffrey Martin.
Hanno Becker47da6df2019-01-10 09:22:16 +000019 * Fix signed-to-unsigned integer conversion warning
20 in X.509 module. Fixes #2212.
Ron Eldor8a6917d2018-11-27 10:33:38 +020021 * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
22 Fixes #2190.
Masashi Honmafbda6122018-12-28 05:40:17 +090023 * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326.
amisare5c0b5b52019-01-04 08:15:46 +080024 * Remove the mbedtls namespacing from the header file, to fix a "file not found"
25 build error. Fixed by Haijun Gu #2319.
Ron Eldor5351afa2018-12-17 10:12:55 +020026 * Fix returning the value 1 when mbedtls_ecdsa_genkey failed.
Darryl Green955db7e2019-01-07 13:05:37 +000027
Jaeden Amerof0f8c092019-01-30 16:09:08 +000028Changes
29 * Include configuration file in all header files that use configuration,
30 instead of relying on other header files that they include.
31 Inserted as an enhancement for #1371
Jaeden Amero9fc7af02019-01-30 16:17:22 +000032 * Add support for alternative CSR headers, as used by Microsoft and defined
33 in RFC 7468. Found by Michael Ernst. Fixes #767.
k-stachowiakb4595d22019-02-19 12:41:30 +010034 * Re-enable certain interoperability tests in ssl-opt.sh which had previously
35 been disabled for lack of a sufficiently recent version of GnuTLS on the CI.
Jaeden Amerof0f8c092019-01-30 16:09:08 +000036
Simon Butcher6c164e72018-12-21 10:51:51 +000037= mbed TLS 2.16.0 branch released 2018-12-21
Gilles Peskineddffa062018-10-03 13:40:16 +020038
Manuel Pégourié-Gonnard8a46c222018-12-11 10:46:41 +010039Features
Manuel Pégourié-Gonnard97940982018-12-17 13:13:50 +010040 * Add a new config.h option of MBEDTLS_CHECK_PARAMS that enables validation
41 of parameters in the API. This allows detection of obvious misuses of the
42 API, such as passing NULL pointers. The API of existing functions hasn't
43 changed, but requirements on parameters have been made more explicit in
44 the documentation. See the corresponding API documentation for each
45 function to see for which parameter values it is defined. This feature is
46 disabled by default. See its API documentation in config.h for additional
47 steps you have to take when enabling it.
Gilles Peskine5da05052018-09-11 18:59:55 +020048
Manuel Pégourié-Gonnard12dce612018-12-13 09:48:40 +010049API Changes
50 * The following functions in the random generator modules have been
51 deprecated and replaced as shown below. The new functions change
52 the return type from void to int to allow returning error codes when
53 using MBEDTLS_<MODULE>_ALT for the underlying AES or message digest
54 primitive. Fixes #1798.
55 mbedtls_ctr_drbg_update() -> mbedtls_ctr_drbg_update_ret()
56 mbedtls_hmac_drbg_update() -> mbedtls_hmac_drbg_update_ret()
57 * Extend ECDH interface to enable alternative implementations.
Simon Butchere0460532018-12-20 16:17:02 +000058 * Deprecate error codes of the form MBEDTLS_ERR_xxx_INVALID_KEY_LENGTH for
59 ARIA, CAMELLIA and Blowfish. These error codes will be replaced by
60 the more generic per-module error codes MBEDTLS_ERR_xxx_BAD_INPUT_DATA.
61 * Additional parameter validation checks have been added for the following
62 modules - AES, ARIA, Blowfish, CAMELLIA, CCM, GCM, DHM, ECP, ECDSA, ECDH,
63 ECJPAKE, SHA, Chacha20 and Poly1305, cipher, pk, RSA, and MPI.
64 Where modules have had parameter validation added, existing parameter
65 checks may have changed. Some modules, such as Chacha20 had existing
66 parameter validation whereas other modules had little. This has now been
67 changed so that the same level of validation is present in all modules, and
68 that it is now optional with the MBEDTLS_CHECK_PARAMS flag which by default
69 is off. That means that checks which were previously present by default
70 will no longer be.
Manuel Pégourié-Gonnard12dce612018-12-13 09:48:40 +010071
Gilles Peskine5da05052018-09-11 18:59:55 +020072New deprecations
73 * Deprecate mbedtls_ctr_drbg_update and mbedtls_hmac_drbg_update
74 in favor of functions that can return an error code.
Gilles Peskineddffa062018-10-03 13:40:16 +020075
Simon Butcherb3633822018-07-30 22:10:48 +010076Bugfix
Simon Butcherdf0500d2018-09-30 12:27:26 +010077 * Fix for Clang, which was reporting a warning for the bignum.c inline
78 assembly for AMD64 targets creating string literals greater than those
79 permitted by the ISO C99 standard. Found by Aaron Jones. Fixes #482.
Hanno Becker5e0924c2018-10-18 12:11:54 +010080 * Fix runtime error in `mbedtls_platform_entropy_poll()` when run
81 through qemu user emulation. Reported and fix suggested by randombit
82 in #1212. Fixes #1212.
Hanno Beckera7d2fa72018-10-24 13:41:43 +010083 * Fix an unsafe bounds check when restoring an SSL session from a ticket.
84 This could lead to a buffer overflow, but only in case ticket authentication
85 was broken. Reported and fix suggested by Guido Vranken in #659.
Jaeden Amero9055a7d2018-12-06 16:09:58 +000086 * Add explicit integer to enumeration type casts to example program
87 programs/pkey/gen_key which previously led to compilation failure
88 on some toolchains. Reported by phoenixmcallister. Fixes #2170.
Janos Follath855def12018-12-07 10:04:17 +000089 * Fix double initialization of ECC hardware that made some accelerators
90 hang.
Simon Butcher6df8c532018-12-20 12:34:44 +000091 * Clarify documentation of mbedtls_ssl_set_own_cert() regarding the absence
92 of check for certificate/key matching. Reported by Attila Molnar, #507.
Simon Butcherc86993e2018-09-27 09:48:54 +010093
Simon Butchere0460532018-12-20 16:17:02 +000094= mbed TLS 2.14.1 branch released 2018-11-30
95
96Security
97 * Fix timing variations and memory access variations in RSA PKCS#1 v1.5
98 decryption that could lead to a Bleichenbacher-style padding oracle
99 attack. In TLS, this affects servers that accept ciphersuites based on
100 RSA decryption (i.e. ciphersuites whose name contains RSA but not
101 (EC)DH(E)). Discovered by Eyal Ronen (Weizmann Institute), Robert Gillham
102 (University of Adelaide), Daniel Genkin (University of Michigan),
103 Adi Shamir (Weizmann Institute), David Wong (NCC Group), and Yuval Yarom
104 (University of Adelaide, Data61). The attack is described in more detail
105 in the paper available here: http://cat.eyalro.net/cat.pdf CVE-2018-19608
106 * In mbedtls_mpi_write_binary(), don't leak the exact size of the number
107 via branching and memory access patterns. An attacker who could submit
108 a plaintext for RSA PKCS#1 v1.5 decryption but only observe the timing
109 of the decryption and not its result could nonetheless decrypt RSA
110 plaintexts and forge RSA signatures. Other asymmetric algorithms may
111 have been similarly vulnerable. Reported by Eyal Ronen, Robert Gillham,
112 Daniel Genkin, Adi Shamir, David Wong and Yuval Yarom.
113 * Wipe sensitive buffers on the stack in the CTR_DRBG and HMAC_DRBG
114 modules.
115
116API Changes
117 * The new functions mbedtls_ctr_drbg_update_ret() and
118 mbedtls_hmac_drbg_update_ret() are similar to mbedtls_ctr_drbg_update()
119 and mbedtls_hmac_drbg_update() respectively, but the new functions
120 report errors whereas the old functions return void. We recommend that
121 applications use the new functions.
122
Simon Butcherc1b98922018-11-19 18:31:40 +0000123= mbed TLS 2.14.0 branch released 2018-11-19
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200124
Hanno Beckerd3445da2018-11-02 09:36:45 +0000125Security
Simon Butcher681edee2018-11-07 16:25:38 +0000126 * Fix overly strict DN comparison when looking for CRLs belonging to a
Simon Butcherb35e59d2018-11-19 15:49:26 +0000127 particular CA. This previously led to ignoring CRLs when the CRL's issuer
Simon Butcher681edee2018-11-07 16:25:38 +0000128 name and the CA's subject name differed in their string encoding (e.g.,
129 one using PrintableString and the other UTF8String) or in the choice of
130 upper and lower case. Reported by Henrik Andersson of Bosch GmbH in issue
131 #1784.
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100132 * Fix a flawed bounds check in server PSK hint parsing. In case the
Simon Butcherb35e59d2018-11-19 15:49:26 +0000133 incoming message buffer was placed within the first 64KiB of address
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100134 space and a PSK-(EC)DHE ciphersuite was used, this allowed an attacker
Simon Butcherb35e59d2018-11-19 15:49:26 +0000135 to trigger a memory access up to 64KiB beyond the incoming message buffer,
136 potentially leading to an application crash or information disclosure.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100137 * Fix mbedtls_mpi_is_prime() to use more rounds of probabilistic testing. The
138 previous settings for the number of rounds made it practical for an
139 adversary to construct non-primes that would be erroneously accepted as
140 primes with high probability. This does not have an impact on the
Simon Butcher681edee2018-11-07 16:25:38 +0000141 security of TLS, but can matter in other contexts with numbers chosen
142 potentially by an adversary that should be prime and can be validated.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100143 For example, the number of rounds was enough to securely generate RSA key
144 pairs or Diffie-Hellman parameters, but was insufficient to validate
145 Diffie-Hellman parameters properly.
146 See "Prime and Prejudice" by by Martin R. Albrecht and Jake Massimo and
147 Kenneth G. Paterson and Juraj Somorovsky.
Hanno Beckerd3445da2018-11-02 09:36:45 +0000148
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200149Features
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200150 * Add support for temporarily suspending expensive ECC computations after
Simon Butcherb35e59d2018-11-19 15:49:26 +0000151 some configurable amount of operations. This is intended to be used in
152 constrained, single-threaded systems where ECC is time consuming and can
153 block other operations until they complete. This is disabled by default,
154 but can be enabled by MBEDTLS_ECP_RESTARTABLE at compile time and
155 configured by mbedtls_ecp_set_max_ops() at runtime. It applies to the new
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200156 xxx_restartable functions in ECP, ECDSA, PK and X.509 (CRL not supported
157 yet), and to existing functions in ECDH and SSL (currently only
158 implemented client-side, for ECDHE-ECDSA ciphersuites in TLS 1.2,
159 including client authentication).
Simon Butcher4a865ef2018-10-28 18:00:51 +0000160 * Add support for Arm CPU DSP extensions to accelerate asymmetric key
161 operations. On CPUs where the extensions are available, they can accelerate
162 MPI multiplications used in ECC and RSA cryptography. Contributed by
163 Aurelien Jarno.
Simon Butcherb35e59d2018-11-19 15:49:26 +0000164 * Extend RSASSA-PSS signature to allow a smaller salt size. Previously, PSS
165 signature always used a salt with the same length as the hash, and returned
166 an error if this was not possible. Now the salt size may be up to two bytes
167 shorter. This allows the library to support all hash and signature sizes
168 that comply with FIPS 186-4, including SHA-512 with a 1024-bit key.
Simon Butcher06d80cf2018-11-06 23:46:04 +0000169 * Add support for 128-bit keys in CTR_DRBG. Note that using keys shorter
170 than 256 bits limits the security of generated material to 128 bits.
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +0200171
Simon Butchere51d4b32018-11-09 19:57:53 +0000172API Changes
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000173 * Add a common error code of `MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED` for
174 a feature that is not supported by underlying alternative
175 implementations implementing cryptographic primitives. This is useful for
176 hardware accelerators that don't implement all options or features.
Simon Butchere51d4b32018-11-09 19:57:53 +0000177
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300178New deprecations
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000179 * All module specific errors following the form
180 MBEDTLS_ERR_XXX_FEATURE_UNAVAILABLE that indicate a feature is not
181 supported are deprecated and are now replaced by the new equivalent
182 platform error.
Simon Butcher681edee2018-11-07 16:25:38 +0000183 * All module specific generic hardware acceleration errors following the
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000184 form MBEDTLS_ERR_XXX_HW_ACCEL_FAILED that are deprecated and are replaced
185 by the equivalent plaform error.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100186 * Deprecate the function mbedtls_mpi_is_prime() in favor of
187 mbedtls_mpi_is_prime_ext() which allows specifying the number of
188 Miller-Rabin rounds.
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300189
Simon Butcherb3633822018-07-30 22:10:48 +0100190Bugfix
Simon Butcher2b5be1e2018-10-30 15:55:10 +0000191 * Fix wrong order of freeing in programs/ssl/ssl_server2 example
192 application leading to a memory leak in case both
193 MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set.
194 Fixes #2069.
Simon Butcherc86993e2018-09-27 09:48:54 +0100195 * Fix a bug in the update function for SSL ticket keys which previously
196 invalidated keys of a lifetime of less than a 1s. Fixes #1968.
197 * Fix failure in hmac_drbg in the benchmark sample application, when
198 MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
Hanno Beckerf24c3362018-10-17 14:53:05 +0100199 * Fix a bug in the record decryption routine ssl_decrypt_buf()
200 which lead to accepting properly authenticated but improperly
201 padded records in case of CBC ciphersuites using Encrypt-then-MAC.
Hanno Becker617a3212018-10-05 09:51:36 +0100202 * Fix memory leak and freeing without initialization in the example
203 program programs/x509/cert_write. Fixes #1422.
Simon Butcher681edee2018-11-07 16:25:38 +0000204 * Ignore IV in mbedtls_cipher_set_iv() when the cipher mode is
205 MBEDTLS_MODE_ECB. Found by ezdevelop. Fixes #1091.
Hanno Becker7e1f3be2018-10-15 13:20:28 +0100206 * Zeroize memory used for buffering or reassembling handshake messages
207 after use.
208 * Use `mbedtls_platform_zeroize()` instead of `memset()` for zeroization
209 of sensitive data in the example programs aescrypt2 and crypt_and_hash.
Hanno Beckerf143a782018-11-06 17:43:16 +0000210 * Change the default string format used for various X.509 DN attributes to
211 UTF8String. Previously, the use of the PrintableString format led to
212 wildcards and non-ASCII characters being unusable in some DN attributes.
Simon Butcher681edee2018-11-07 16:25:38 +0000213 Reported by raprepo in #1860 and by kevinpt in #468. Fix contributed by
214 Thomas-Dee.
Hanno Beckere4f965d2018-10-11 10:54:45 +0100215 * Fix compilation failure for configurations which use compile time
216 replacements of standard calloc/free functions through the macros
217 MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO.
218 Reported by ole-de and ddhome2006. Fixes #882, #1642 and #1706.
Simon Butcherc86993e2018-09-27 09:48:54 +0100219
220Changes
Simon Butcherc0514bf2018-09-26 18:07:18 +0100221 * Removed support for Yotta as a build tool.
Simon Butcherc86993e2018-09-27 09:48:54 +0100222 * Add tests for session resumption in DTLS.
Gilles Peskine604ccc62018-07-10 15:55:52 +0200223 * Close a test gap in (D)TLS between the client side and the server side:
224 test the handling of large packets and small packets on the client side
225 in the same way as on the server side.
Simon Butcherddc9e262018-10-27 18:27:41 +0100226 * Change the dtls_client and dtls_server samples to work by default over
227 IPv6 and optionally by a build option over IPv4.
Simon Butcher404aa652018-10-01 14:44:22 +0100228 * Change the use of Windows threading to use Microsoft Visual C++ runtime
229 calls, rather than Win32 API calls directly. This is necessary to avoid
230 conflict with C runtime usage. Found and fixed by irwir.
Simon Butcher681edee2018-11-07 16:25:38 +0000231 * Remember the string format of X.509 DN attributes when replicating
232 X.509 DNs. Previously, DN attributes were always written in their default
233 string format (mostly PrintableString), which could lead to CRTs being
234 created which used PrintableStrings in the issuer field even though the
235 signing CA used UTF8Strings in its subject field; while X.509 compliant,
236 such CRTs were rejected in some applications, e.g. some versions of
237 Firefox, curl and GnuTLS. Reported in #1033 by Moschn. Fix contributed by
238 Thomas-Dee.
Hanno Becker0bb204c2018-10-30 10:08:33 +0000239 * Improve documentation of mbedtls_ssl_get_verify_result().
240 Fixes #517 reported by github-monoculture.
Janos Follath33329372018-09-06 10:41:33 +0100241 * Add MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR flag to mbedtls_mpi_gen_prime() and
242 use it to reduce error probability in RSA key generation to levels mandated
243 by FIPS-186-4.
Simon Butcherc86993e2018-09-27 09:48:54 +0100244
Simon Butcher5d40f672018-09-06 16:24:48 +0100245= mbed TLS 2.13.1 branch released 2018-09-06
Simon Butcherb3633822018-07-30 22:10:48 +0100246
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100247API Changes
Hanno Beckeracef2922018-09-05 16:19:07 +0100248 * Extend the platform module with an abstraction mbedtls_platform_gmtime_r()
Hanno Becker921b76d2018-09-05 16:21:36 +0100249 whose implementation should behave as a thread-safe version of gmtime().
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100250 This allows users to configure such an implementation at compile time when
Hanno Beckeracef2922018-09-05 16:19:07 +0100251 the target system cannot be deduced automatically, by setting the option
252 MBEDTLS_PLATFORM_GMTIME_R_ALT. At this stage Mbed TLS is only able to
253 automatically select implementations for Windows and POSIX C libraries.
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100254
Simon Butcherb3633822018-07-30 22:10:48 +0100255Bugfix
Andres Amaya Garcia8c9a6202018-09-05 11:30:28 +0100256 * Fix build failures on platforms where only gmtime() is available but
257 neither gmtime_r() nor gmtime_s() are present. Fixes #1907.
Simon Butcherb3633822018-07-30 22:10:48 +0100258
Simon Butcher4d075cd2018-08-31 15:59:10 +0100259= mbed TLS 2.13.0 branch released 2018-08-31
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100260
k-stachowiak21feae52018-07-09 14:42:35 +0200261Security
k-stachowiak6ca436a2018-07-16 12:20:10 +0200262 * Fix an issue in the X.509 module which could lead to a buffer overread
263 during certificate extensions parsing. In case of receiving malformed
264 input (extensions length field equal to 0), an illegal read of one byte
265 beyond the input buffer is made. Found and analyzed by Nathan Crandall.
k-stachowiak21feae52018-07-09 14:42:35 +0200266
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200267Features
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200268 * Add support for fragmentation of outgoing DTLS handshake messages. This
269 is controlled by the maximum fragment length as set locally or negotiated
Manuel Pégourié-Gonnardf2f1d402018-08-21 09:53:22 +0200270 with the peer, as well as by a new per-connection MTU option, set using
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200271 mbedtls_ssl_set_mtu().
Manuel Pégourié-Gonnardb8eec192018-08-20 09:34:02 +0200272 * Add support for auto-adjustment of MTU to a safe value during the
273 handshake when flights do not get through (RFC 6347, section 4.1.1.1,
274 last paragraph).
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100275 * Add support for packing multiple records within a single datagram,
276 enabled by default.
Hanno Becker02f6f5a2018-08-28 12:54:27 +0100277 * Add support for buffering out-of-order handshake messages in DTLS.
Hanno Beckeraa249372018-08-22 10:27:13 +0100278 The maximum amount of RAM used for this can be controlled by the
279 compile-time constant MBEDTLS_SSL_DTLS_MAX_BUFFERING defined
280 in mbedtls/config.h.
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100281
282API Changes
Hanno Becker1841b0a2018-08-24 11:13:57 +0100283 * Add function mbedtls_ssl_set_datagram_packing() to configure
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100284 the use of datagram packing (enabled by default).
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200285
Gilles Peskine104d8582018-06-27 10:57:33 +0200286Bugfix
Simon Butcherb5afb972018-08-31 11:59:56 +0100287 * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation
288 failure in the function could lead to other buffers being leaked.
Gilles Peskine104d8582018-06-27 10:57:33 +0200289 * Fixes an issue with MBEDTLS_CHACHAPOLY_C which would not compile if
290 MBEDTLS_ARC4_C and MBEDTLS_CIPHER_NULL_CIPHER weren't also defined. #1890
Jaeden Amerof48163a2018-08-10 10:49:10 +0100291 * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails.
292 Fix contributed by Espressif Systems.
Ron Eldor3f38cf72018-06-21 16:40:24 +0300293 * Add ecc extensions only if an ecc based ciphersuite is used.
Ron Eldor84e62f82018-06-28 11:09:09 +0300294 This improves compliance to RFC 4492, and as a result, solves
295 interoperability issues with BouncyCastle. Raised by milenamil in #1157.
Simon Butcherb5afb972018-08-31 11:59:56 +0100296 * Replace printf with mbedtls_printf in the ARIA module. Found by
297 TrinityTonic in #1908.
Hanno Becker9dc3be72018-08-14 15:22:05 +0100298 * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len()
Hanno Becker361f2542018-08-13 16:36:58 +0100299 and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941.
Hanno Beckereb2b15a2018-08-17 09:47:22 +0100300 * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake
301 with TLS versions 1.1 and earlier when the server requested authentication
302 without providing a list of CAs. This was due to an overly strict bounds
303 check in parsing the CertificateRequest message,
304 introduced in Mbed TLS 2.12.0. Fixes #1954.
Hanno Becker44814642018-08-03 09:53:48 +0100305 * Fix a miscalculation of the maximum record expansion in
306 mbedtls_ssl_get_record_expansion() in case of ChachaPoly ciphersuites,
307 or CBC ciphersuites in (D)TLS versions 1.1 or higher. Fixes #1913, #1914.
Simon Butcherb5afb972018-08-31 11:59:56 +0100308 * Fix undefined shifts with negative values in certificates parsing
309 (found by Catena cyber using oss-fuzz)
Hanno Beckera70fb952017-10-08 16:13:03 +0100310 * Fix memory leak and free without initialization in pk_encrypt
311 and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128.
Simon Butcherb5afb972018-08-31 11:59:56 +0100312 * Remove redundant else statement. Raised by irwir. Fixes #1776.
Gilles Peskine104d8582018-06-27 10:57:33 +0200313
Jaeden Amero372b50b2018-08-10 10:56:31 +0100314Changes
315 * Copy headers preserving timestamps when doing a "make install".
316 Contributed by xueruini.
Jaeden Amero03bd4842018-08-10 11:17:14 +0100317 * Allow the forward declaration of public structs. Contributed by Dawid
318 Drozd. Fixes #1215 raised by randombit.
Jaeden Amerod8f416982018-08-10 11:23:15 +0100319 * Improve compatibility with some alternative CCM implementations by using
320 CCM test vectors from RAM.
Hanno Beckerf1035422018-08-16 16:07:27 +0100321 * Add support for buffering of out-of-order handshake messages.
Janos Follath08a4aeb2018-08-06 14:20:15 +0100322 * Add warnings to the documentation of the HKDF module to reduce the risk
323 of misusing the mbedtls_hkdf_extract() and mbedtls_hkdf_expand()
324 functions. Fixes #1775. Reported by Brian J. Murray.
325
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100326= mbed TLS 2.12.0 branch released 2018-07-25
327
Gilles Peskine104d8582018-06-27 10:57:33 +0200328Security
329 * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384,
330 in (D)TLS 1.0 to 1.2, that allowed an active network attacker to
331 partially recover the plaintext of messages under some conditions by
332 exploiting timing measurements. With DTLS, the attacker could perform
333 this recovery by sending many messages in the same connection. With TLS
334 or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only
335 worked if the same secret (for example a HTTP Cookie) has been repeatedly
336 sent over connections manipulated by the attacker. Connections using GCM
337 or CCM instead of CBC, using hash sizes other than SHA-384, or using
338 Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was
339 caused by a miscalculation (for SHA-384) in a countermeasure to the
340 original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi
341 Shamir.
Manuel Pégourié-Gonnard1cc1fb02018-06-28 12:10:27 +0200342 * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to
343 1.2, that allowed a local attacker, able to execute code on the local
344 machine as well as manipulate network packets, to partially recover the
Manuel Pégourié-Gonnard830ce112018-07-11 18:27:08 +0200345 plaintext of messages under some conditions by using a cache attack
346 targetting an internal MD/SHA buffer. With TLS or if
347 mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if
348 the same secret (for example a HTTP Cookie) has been repeatedly sent over
349 connections manipulated by the attacker. Connections using GCM or CCM
350 instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected.
351 Found by Kenny Paterson, Eyal Ronen and Adi Shamir.
Manuel Pégourié-Gonnard7b420302018-06-28 10:38:35 +0200352 * Add a counter-measure against a vulnerability in TLS ciphersuites based
353 on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to
354 execute code on the local machine as well as manipulate network packets,
355 to partially recover the plaintext of messages under some conditions (see
356 previous entry) by using a cache attack targeting the SSL input record
357 buffer. Connections using GCM or CCM instead of CBC or using
358 Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson,
359 Eyal Ronen and Adi Shamir.
Gilles Peskine104d8582018-06-27 10:57:33 +0200360
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200361Features
362 * Add new crypto primitives from RFC 7539: stream cipher Chacha20, one-time
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200363 authenticator Poly1305 and AEAD construct Chacha20-Poly1305. Contributed
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100364 by Daniel King.
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200365 * Add support for CHACHA20-POLY1305 ciphersuites from RFC 7905.
Simon Butcher231d7e52018-07-10 11:56:19 +0100366 * Add platform support for the Haiku OS. (https://www.haiku-os.org).
367 Contributed by Augustin Cavalier.
Simon Butcher00af4472018-07-10 15:35:43 +0100368 * Make the receive and transmit buffers independent sizes, for situations
369 where the outgoing buffer can be fixed at a smaller size than the incoming
370 buffer, which can save some RAM. If buffer lengths are kept equal, there
371 is no functional difference. Contributed by Angus Gratton, and also
372 independently contributed again by Paul Sokolovsky.
Ron Eldor9cf0d532018-07-15 09:34:35 +0300373 * Add support for key wrapping modes based on AES as defined by
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100374 NIST SP 800-38F algorithms KW and KWP and by RFC 3394 and RFC 5649.
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200375
Simon Butcher9e02b972018-06-28 11:56:57 +0100376Bugfix
377 * Fix the key_app_writer example which was writing a leading zero byte which
378 was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
niisatob7d39db2018-06-25 20:44:57 +0900379 * Fix compilation error on C++, because of a variable named new.
niisato164b9cd2018-06-25 20:47:05 +0900380 Found and fixed by Hirotaka Niisato in #1783.
Simon Butcher1d97cab2018-06-28 12:06:16 +0100381 * Fix "no symbols" warning issued by ranlib when building on Mac OS X. Fix
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100382 contributed by tabascoeye.
Andres Amaya Garciaa562c262017-07-11 14:39:30 +0100383 * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
384 return value. Found by @davidwu2000. #839
Simon Butcher1ab9b572018-06-28 12:10:56 +0100385 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
386 Philippe Antoine. Fixes #1623.
Simon Butcher05fa46e2018-07-02 12:00:54 +0100387 * Remove unused headers included in x509.c. Found by Chris Hanson and fixed
388 by Brendan Shanks. Part of a fix for #992.
Ron Eldorda2a3122018-06-17 14:51:59 +0300389 * Fix compilation error when MBEDTLS_ARC4_C is disabled and
390 MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100391 * Added length checks to some TLS parsing functions. Found and fixed by
392 Philippe Antoine from Catena cyber. #1663.
Simon Butcher6c344422018-06-24 16:20:56 +0100393 * Fix the inline assembly for the MPI multiply helper function for i386 and
394 i386 with SSE2. Found by László Langó. Fixes #1550
Ron Eldor6332e362017-10-01 17:11:54 +0300395 * Fix namespacing in header files. Remove the `mbedtls` namespacing in
Ron Eldor6fd941f2017-05-14 16:17:33 +0300396 the `#include` in the header files. Resolves #857
Simon Butcherecb635e2018-07-24 10:03:41 +0100397 * Fix compiler warning of 'use before initialisation' in
398 mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid
399 Drozd. #1098
Simon Butcher05330542018-07-24 12:54:15 +0100400 * Fix decryption for zero length messages (which contain all padding) when a
401 CBC based ciphersuite is used together with Encrypt-then-MAC. Previously,
402 such a message was wrongly reported as an invalid record and therefore lead
403 to the connection being terminated. Seen most often with OpenSSL using
404 TLS 1.0. Reported by @kFYatek and by Conor Murphy on the forum. Fix
405 contributed by Espressif Systems. Fixes #1632
Andres Amaya Garcia81f06332018-07-04 10:01:39 +0100406 * Fix ssl_client2 example to send application data with 0-length content
407 when the request_size argument is set to 0 as stated in the documentation.
408 Fixes #1833.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100409 * Correct the documentation for `mbedtls_ssl_get_session()`. This API has
410 deep copy of the session, and the peer certificate is not lost. Fixes #926.
Simon Butcher2c929492018-07-24 17:20:17 +0100411 * Fix build using -std=c99. Fixed by Nick Wilson.
Simon Butcher9e02b972018-06-28 11:56:57 +0100412
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100413Changes
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100414 * Fail when receiving a TLS alert message with an invalid length, or invalid
415 zero-length messages when using TLS 1.2. Contributed by Espressif Systems.
416 * Change the default behaviour of mbedtls_hkdf_extract() to return an error
417 when calling with a NULL salt and non-zero salt_len. Contributed by
418 Brian J Murray
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100419 * Change the shebang line in Perl scripts to look up perl in the PATH.
420 Contributed by fbrosson.
Nicholas Wilson512b4ee2017-12-05 12:07:33 +0000421 * Allow overriding the time on Windows via the platform-time abstraction.
422 Fixed by Nick Wilson.
423 * Use gmtime_r/gmtime_s for thread-safety. Fixed by Nick Wilson.
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100424
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +0200425= mbed TLS 2.11.0 branch released 2018-06-18
426
427Features
Simon Butcher4ed38802018-06-12 17:35:06 +0100428 * Add additional block mode, OFB (Output Feedback), to the AES module and
429 cipher abstraction module.
430 * Implement the HMAC-based extract-and-expand key derivation function
431 (HKDF) per RFC 5869. Contributed by Thomas Fossati.
432 * Add support for the CCM* block cipher mode as defined in IEEE Std. 802.15.4.
Jaeden Amerof4474e72018-05-23 14:21:02 +0100433 * Add support for the XTS block cipher mode with AES (AES-XTS).
434 Contributed by Aorimn in pull request #414.
Gilles Peskineb44692f2018-04-24 12:18:19 +0200435 * In TLS servers, support offloading private key operations to an external
436 cryptoprocessor. Private key operations can be asynchronous to allow
437 non-blocking operation of the TLS server stack.
Simon Butcherebe23ed2018-06-12 16:46:45 +0100438
Simon Butcher601144e2018-06-12 17:04:58 +0100439Bugfix
Simon Butcher4ed38802018-06-12 17:35:06 +0100440 * Fix the cert_write example to handle certificates signed with elliptic
441 curves as well as RSA. Fixes #777 found by dbedev.
Simon Butchere5cd8682018-06-14 10:30:19 +0100442 * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
443 used by user applications. Found and fixed by Fabio Alessandrelli.
Simon Butcher600c5e62018-06-14 08:58:59 +0100444 * Fix compilation warnings with IAR toolchain, on 32 bit platform.
445 Reported by rahmanih in #683
Simon Butcher925568a2018-06-18 11:54:44 +0100446 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
Simon Butcher4ed38802018-06-12 17:35:06 +0100447
448Changes
449 * Changed CMake defaults for IAR to treat all compiler warnings as errors.
Simon Butcherb6a5bff2018-06-18 11:51:36 +0100450 * Changed the Clang parameters used in the CMake build files to work for
451 versions later than 3.6. Versions of Clang earlier than this may no longer
452 work. Fixes #1072
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200453
Simon Butcherd5a09f12018-06-06 14:47:47 +0100454= mbed TLS 2.10.0 branch released 2018-06-06
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100455
Manuel Pégourié-Gonnard08d1e912018-02-27 12:43:35 +0100456Features
457 * Add support for ARIA cipher (RFC 5794) and associated TLS ciphersuites
458 (RFC 6209). Disabled by default, see MBEDTLS_ARIA_C in config.h
459
Gilles Peskine80aa3b82018-04-04 10:33:45 +0200460API Changes
Andres Amaya Garcia19624052018-03-08 20:06:03 +0000461 * Extend the platform module with a util component that contains
462 functionality shared by multiple Mbed TLS modules. At this stage
463 platform_util.h (and its associated platform_util.c) only contain
464 mbedtls_platform_zeroize(), which is a critical function from a security
465 point of view. mbedtls_platform_zeroize() needs to be regularly tested
466 against compilers to ensure that calls to it are not removed from the
467 output binary as part of redundant code elimination optimizations.
468 Therefore, mbedtls_platform_zeroize() is moved to the platform module to
469 facilitate testing and maintenance.
Hanno Becker2bd57572018-03-28 14:52:35 +0100470
Simon Butcherd72700a2018-06-01 19:11:55 +0100471Bugfix
472 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
473 build to fail. Found by zv-io. Fixes #1651.
474
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100475Changes
476 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Moran Pekera64fba42018-02-25 13:29:03 +0200477 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
478 TrinityTonic. #1359.
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100479
Jaeden Amero7d7bad62018-04-27 13:07:13 +0100480= mbed TLS 2.9.0 branch released 2018-04-30
Ron Eldorfb46c322016-12-16 16:15:56 +0200481
Simon Butcherf85c90a2017-07-27 15:11:52 +0100482Security
Simon Butcherb03120a2018-04-30 16:40:25 +0100483 * Fix an issue in the X.509 module which could lead to a buffer overread
484 during certificate validation. Additionally, the issue could also lead to
485 unnecessary callback checks being made or to some validation checks to be
486 omitted. The overread could be triggered remotely, while the other issues
487 would require a non DER-compliant certificate to be correctly signed by a
488 trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
489 luocm. Fixes #825.
490 * Fix the buffer length assertion in the ssl_parse_certificate_request()
491 function which led to an arbitrary overread of the message buffer. The
492 overreads could be caused by receiving a malformed message at the point
493 where an optional signature algorithms list is expected when the signature
494 algorithms section is too short. In builds with debug output, the overread
495 data is output with the debug data.
Andrzej Kurekb7a18c02018-04-25 05:25:30 -0400496 * Fix a client-side bug in the validation of the server's ciphersuite choice
Simon Butcherb03120a2018-04-30 16:40:25 +0100497 which could potentially lead to the client accepting a ciphersuite it didn't
498 offer or a ciphersuite that cannot be used with the TLS or DTLS version
499 chosen by the server. This could lead to corruption of internal data
500 structures for some configurations.
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100501
Gilles Peskine15ad5792018-03-22 22:21:55 +0100502Features
Simon Butcherb03120a2018-04-30 16:40:25 +0100503 * Add an option, MBEDTLS_AES_FEWER_TABLES, to dynamically compute smaller AES
504 tables during runtime, thereby reducing the RAM/ROM footprint by ~6KiB.
505 Suggested and contributed by jkivilin in pull request #394.
Gilles Peskine15ad5792018-03-22 22:21:55 +0100506 * Add initial support for Curve448 (RFC 7748). Only mbedtls_ecp_mul() and
507 ECDH primitive functions (mbedtls_ecdh_gen_public(),
508 mbedtls_ecdh_compute_shared()) are supported for now. Contributed by
Simon Butchere6a2a1a2018-05-01 13:57:53 +0100509 Nicholas Wilson in pull request #348.
Hanno Becker371f31c2017-06-07 15:56:54 +0100510
511API Changes
Simon Butcherb03120a2018-04-30 16:40:25 +0100512 * Extend the public API with the function of mbedtls_net_poll() to allow user
513 applications to wait for a network context to become ready before reading
514 or writing.
515 * Add function mbedtls_ssl_check_pending() to the public API to allow
516 a check for whether more more data is pending to be processed in the
517 internal message buffers.
Gilles Peskine557e77d2018-04-04 09:18:11 +0200518 This function is necessary to determine when it is safe to idle on the
519 underlying transport in case event-driven IO is used.
Hanno Becker371f31c2017-06-07 15:56:54 +0100520
Andres AGee7157e2016-12-07 10:25:19 +0000521Bugfix
Simon Butcherb03120a2018-04-30 16:40:25 +0100522 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
Gilles Peskine08185402018-03-22 21:50:48 +0100523 contributed by Brian J Murray and David Brown.
Gilles Peskine51d93942018-03-23 01:42:44 +0100524 * Add missing dependencies in test suites that led to build failures
525 in configurations that omit certain hashes or public-key algorithms.
526 Fixes #1040.
Jaeden Amerob6049602018-03-26 18:25:58 +0100527 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
528 #1353
Gilles Peskinef69ad5a2018-03-27 23:08:53 +0200529 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
Simon Butcherb03120a2018-04-30 16:40:25 +0100530 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
531 Deomid Ryabkov. Fixes #1299, #1475.
532 * Fix the Makefile build process for building shared libraries on Mac OS X.
533 Fixed by mnacamura.
Jethro Beekmand2df9362018-02-16 13:11:04 -0800534 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcherb03120a2018-04-30 16:40:25 +0100535 unable to parse keys which had only the optional parameters field of the
Jethro Beekmancb122372018-04-11 08:40:38 -0700536 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
Simon Butcherb03120a2018-04-30 16:40:25 +0100537 * Return the plaintext data more quickly on unpadded CBC decryption, as
538 stated in the mbedtls_cipher_update() documentation. Contributed by
539 Andy Leiserson.
Gilles Peskineb9e86962018-04-04 09:20:59 +0200540 * Fix overriding and ignoring return values when parsing and writing to
541 a file in pk_sign program. Found by kevlut in #1142.
Hanno Beckerc53826b2017-10-12 07:46:41 +0100542 * Restrict usage of error code MBEDTLS_ERR_SSL_WANT_READ to situations
543 where data needs to be fetched from the underlying transport in order
544 to make progress. Previously, this error code was also occasionally
545 returned when unexpected messages were being discarded, ignoring that
546 further messages could potentially already be pending to be processed
Simon Butcherb03120a2018-04-30 16:40:25 +0100547 in the internal buffers; these cases led to deadlocks when event-driven
548 I/O was used. Found and reported by Hubert Mis in #772.
Gilles Peskinef2b76cd2018-04-19 17:41:39 +0200549 * Fix buffer length assertions in the ssl_parse_certificate_request()
550 function which leads to a potential one byte overread of the message
551 buffer.
Andrzej Kurek5462e022018-04-20 07:58:53 -0400552 * Fix invalid buffer sizes passed to zlib during record compression and
553 decompression.
Simon Butchere6a2a1a2018-05-01 13:57:53 +0100554 * Fix the soversion of libmbedcrypto to match the soversion of the
555 maintained 2.7 branch. The soversion was increased in Mbed TLS
556 version 2.7.1 to reflect breaking changes in that release, but the
557 increment was missed in 2.8.0 and later releases outside of the 2.7 branch.
Gilles Peskine08185402018-03-22 21:50:48 +0100558
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100559Changes
560 * Remove some redundant code in bignum.c. Contributed by Alexey Skalozub.
Simon Butcherb03120a2018-04-30 16:40:25 +0100561 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
562 independently by Matthieu Volat and Arne Schwabe.
Gilles Peskine51d93942018-03-23 01:42:44 +0100563 * Improve testing in configurations that omit certain hashes or
564 public-key algorithms. Includes contributions by Gert van Dijk.
565 * Improve negative testing of X.509 parsing.
Andres Amaya Garcia768bbaf2018-03-21 15:05:12 +0000566 * Do not define global mutexes around readdir() and gmtime() in
567 configurations where the feature is disabled. Found and fixed by Gergely
568 Budai.
Simon Butcherb03120a2018-04-30 16:40:25 +0100569 * Harden the function mbedtls_ssl_config_free() against misuse, so that it
570 doesn't leak memory if the user doesn't use mbedtls_ssl_conf_psk() and
571 instead incorrectly manipulates the configuration structure directly.
572 Found and fix submitted by junyeonLEE in #1220.
Andres Amaya Garciacb47a792018-03-27 21:19:50 +0100573 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
574 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
575 without PBES2. Fixed by Marcos Del Sol Vives.
Manuel Pégourié-Gonnardfff308e2018-03-28 11:13:05 +0200576 * Add the order of the base point as N in the mbedtls_ecp_group structure
577 for Curve25519 (other curves had it already). Contributed by Nicholas
578 Wilson #481
Jaeden Amero4ba87fc2018-03-29 11:01:38 +0100579 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
580 Krylov.
Darryl Greeneea1c4e2018-03-29 16:05:44 +0100581 * Improve the documentation of mbedtls_ssl_write(). Suggested by
582 Paul Sokolovsky in #1356.
Simon Butcherb03120a2018-04-30 16:40:25 +0100583 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100584 letter must not be prefixed by '-', such as LLVM. Found and fixed by
585 Alex Hixon.
Andres Amaya Garciaea5a8a42018-03-25 23:57:09 +0100586 * Allow configuring the shared library extension by setting the DLEXT
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100587 environment variable when using the project makefiles.
Gilles Peskine4e4be7c2018-03-21 16:29:03 +0100588 * Optimize unnecessary zeroing in mbedtls_mpi_copy. Based on a contribution
Gilles Peskine092bf3d2018-04-01 12:43:48 +0200589 by Alexey Skalozub in #405.
Gilles Peskinea09453f2018-04-04 09:14:12 +0200590 * In the SSL module, when f_send, f_recv or f_recv_timeout report
591 transmitting more than the required length, return an error. Raised by
592 Sam O'Connor in #1245.
Gilles Peskinec96ccf42018-03-31 22:57:03 +0200593 * Improve robustness of mbedtls_ssl_derive_keys against the use of
594 HMAC functions with non-HMAC ciphersuites. Independently contributed
595 by Jiayuan Chen in #1377. Fixes #1437.
Simon Butcherb03120a2018-04-30 16:40:25 +0100596 * Improve security of RSA key generation by including criteria from
597 FIPS 186-4. Contributed by Jethro Beekman. #1380
Gilles Peskine81021ca2018-04-19 20:59:06 +0200598 * Declare functions in header files even when an alternative implementation
599 of the corresponding module is activated by defining the corresponding
600 MBEDTLS_XXX_ALT macro. This means that alternative implementations do
601 not need to copy the declarations, and ensures that they will have the
602 same API.
Andrzej Kurekaca09c72018-04-13 05:18:08 -0400603 * Add platform setup and teardown calls in test suites.
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100604
Jaeden Amero8be0e6d2018-03-16 16:25:12 +0000605= mbed TLS 2.8.0 branch released 2018-03-16
Gilles Peskine27b07542018-02-14 14:07:48 +0100606
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100607Default behavior changes
608 * The truncated HMAC extension now conforms to RFC 6066. This means
609 that when both sides of a TLS connection negotiate the truncated
610 HMAC extension, Mbed TLS can now interoperate with other
611 compliant implementations, but this breaks interoperability with
612 prior versions of Mbed TLS. To restore the old behavior, enable
613 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
614 config.h. Found by Andreas Walz (ivESK, Offenburg University of
615 Applied Sciences).
616
Hanno Becker7dc832b2017-11-16 17:39:34 +0000617Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100618 * Fix implementation of the truncated HMAC extension. The previous
619 implementation allowed an offline 2^80 brute force attack on the
620 HMAC key of a single, uninterrupted connection (with no
621 resumption of the session).
Gilles Peskine553a06f2018-03-13 17:15:34 +0100622 * Verify results of RSA private key operations to defend
623 against Bellcore glitch attack.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +0100624 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
625 a crash on invalid input.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +0100626 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
627 crash on invalid input.
Manuel Pégourié-Gonnardfd3e4fb2018-03-13 11:53:30 +0100628 * Fix CRL parsing to reject CRLs containing unsupported critical
629 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Hanno Becker7dc832b2017-11-16 17:39:34 +0000630
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800631Features
632 * Extend PKCS#8 interface by introducing support for the entire SHA
633 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine1d80a672018-02-14 11:33:30 +0100634 This allows reading encrypted PEM files produced by software that
635 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
636 OpenVPN Inc. Fixes #1339
Gilles Peskine3dabd6a2018-02-14 17:19:41 +0100637 * Add support for public keys encoded in PKCS#1 format. #1122
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800638
Hanno Beckercf092b22018-03-06 14:23:38 +0000639New deprecations
640 * Deprecate support for record compression (configuration option
641 MBEDTLS_ZLIB_SUPPORT).
642
Gilles Peskine27b07542018-02-14 14:07:48 +0100643Bugfix
644 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
645 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +0100646 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +0200647 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
648 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskine1bf61232018-02-27 08:37:52 +0100649 In the context of SSL, this resulted in handshake failure. Reported by
650 daniel in the Mbed TLS forum. #1351
Jaeden Ameroc5d08f82018-02-21 13:32:39 +0000651 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskineb4c571e2018-03-11 00:44:14 +0100652 * Fix setting version TLSv1 as minimal version, even if TLS 1
653 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
654 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
655 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +0300656 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
657 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +0300658 Nick Wilson on issue #355
Gilles Peskine08af5382018-03-11 00:15:56 +0100659 * In test_suite_pk, pass valid parameters when testing for hash length
itayzafrir693a1d92018-02-26 12:02:10 +0200660 overflow. #1179
Gilles Peskinea31d8202018-03-12 23:45:08 +0100661 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
662 by Guido Vranken. #639
Gilles Peskine3ff4a072018-03-12 23:54:20 +0100663 * Log correct number of ciphersuites used in Client Hello message. #918
Gilles Peskine5f193282018-03-13 17:18:06 +0100664 * Fix X509 CRT parsing that would potentially accept an invalid tag when
665 parsing the subject alternative names.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +0100666 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
667 that could cause a key exchange to fail on valid data.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +0100668 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
669 could cause a key exchange to fail on valid data.
Gilles Peskine8db3efb2018-02-21 19:16:20 +0100670 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
671 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +0100672 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
673 Found through fuzz testing.
Gilles Peskine27b07542018-02-14 14:07:48 +0100674
675Changes
676 * Fix tag lengths and value ranges in the documentation of CCM encryption.
677 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +0100678 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskinedf298682018-02-14 15:49:54 +0100679 * Remove support for the library reference configuration for picocoin.
Gilles Peskinebb2565c2018-02-21 17:59:40 +0100680 * MD functions deprecated in 2.7.0 are no longer inline, to provide
681 a migration path for those depending on the library's ABI.
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200682 * Clarify the documentation of mbedtls_ssl_setup.
Gilles Peskine6dc4a312018-03-13 00:13:06 +0100683 * Use (void) when defining functions with no parameters. Contributed by
684 Joris Aerts. #678
Gilles Peskine27b07542018-02-14 14:07:48 +0100685
Simon Butcher55fc4e02018-02-05 01:09:13 +0000686= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100687
Gilles Peskine28a0c722017-10-17 19:01:38 +0200688Security
Simon Butcher55fc4e02018-02-05 01:09:13 +0000689 * Fix a heap corruption issue in the implementation of the truncated HMAC
690 extension. When the truncated HMAC extension is enabled and CBC is used,
691 sending a malicious application packet could be used to selectively corrupt
692 6 bytes on the peer's heap, which could potentially lead to crash or remote
693 code execution. The issue could be triggered remotely from either side in
694 both TLS and DTLS. CVE-2018-0488
695 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
696 for the key size, which could potentially lead to crash or remote code
697 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
698 Qualcomm Technologies Inc. CVE-2018-0487
699 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
700 zeros.
701 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
702 64 KiB to the address of the SSL buffer and causing a wrap around.
703 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +0100704 default enabled) maximum fragment length extension is disabled in the
705 config and the application data buffer passed to mbedtls_ssl_write
706 is larger than the internal message buffer (16384 bytes by default), the
707 latter overflows. The exploitability of this issue depends on whether the
708 application layer can be forced into sending such large packets. The issue
709 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +0000710 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
711 Fixes #707.
712 * Add a provision to prevent compiler optimizations breaking the time
713 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +0100714 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +0100715 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +0300716 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
717 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +0100718 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
719 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000720 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
721 data. Previously, trailing zero bytes were detected and omitted for the
722 sake of saving memory, but potentially leading to slight timing
723 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +0100724 * Wipe stack buffer temporarily holding EC private exponent
725 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000726 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +0100727 (server-side). Could result in application crash, but only if an ALPN
728 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100729 * Change default choice of DHE parameters from untrustworthy RFC 5114
730 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
731 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +0200732
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200733Features
734 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +0100735 * The selftest program can execute a subset of the tests based on command
736 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +0200737 * New unit tests for timing. Improve the self-test to be more robust
738 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +0100739 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +0000740 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +0100741 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +0100742 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +0300743 * Add support for alternative implementations for ECDSA, controlled by new
744 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
745 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +0300746 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +0300747 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +0300748 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000749 * Add support for alternative implementation of ECDH, controlled by the
750 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +0300751 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +0300752 The following functions from the ECDH module can be replaced
753 with an alternative implementation:
754 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000755 * Add support for alternative implementation of ECJPAKE, controlled by
756 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000757 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +0200758
Hanno Beckera47023e2017-12-22 17:08:03 +0000759API Changes
760 * Extend RSA interface by multiple functions allowing structure-
761 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +0000762 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +0000763 up RSA contexts from partial key material and having them completed to the
764 needs of the implementation automatically. This allows to setup private RSA
765 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
766 purpose or CRT and/or blinding.
767 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
768 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100769 * The following functions in the message digest modules (MD2, MD4, MD5,
770 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
771 The new functions change the return type from void to int to allow
772 returning error codes when using MBEDTLS_<MODULE>_ALT.
773 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
774 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
775 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100776 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200777
Ron Eldor73a38172017-10-03 15:58:26 +0300778New deprecations
779 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000780 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100781 * Direct manipulation of structure fields of RSA contexts is deprecated.
782 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000783 * Deprecate usage of message digest functions that return void
784 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
785 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
786 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
787 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100788 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
789 parameters from RFC 3526 or the newly added parameters from RFC 7919.
790 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
791 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
792 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000793 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
794 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100795 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100796
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100797Bugfix
798 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
799 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100800 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
Simon Butcherb03120a2018-04-30 16:40:25 +0100801 Found by projectgus and Jethro Beekman, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100802 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300803 * Parse signature algorithm extension when renegotiating. Previously,
804 renegotiated handshakes would only accept signatures using SHA-1
805 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000806 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
807 dates on leap years with 100 and 400 intervals are handled correctly. Found
808 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200809 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
810 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100811 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
812 Found independently by Florian in the mbed TLS forum and by Mishamax.
813 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100814 * Fix variable used before assignment compilation warnings with IAR
815 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000816 * Fix unchecked return codes from AES, DES and 3DES functions in
817 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
818 If a call to one of the functions of the cryptographic primitive modules
819 failed, the error may not be noticed by the function
820 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
821 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100822 * Include configuration file in md.h, to fix compilation warnings.
823 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100824 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
825 writing routines that prevented these functions to work with alternative
826 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100827 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
828 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100829 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000830 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100831 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000832 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100833 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000834 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000835 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100836 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100837 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100838 * Add size-checks for record and handshake message content, securing
839 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300840 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
841 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +0100842 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000843 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100844 * Fix possible memory leaks in mbedtls_gcm_self_test().
845 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +0000846 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
847 RSA test suite where the failure of CTR DRBG initialization lead to
848 freeing an RSA context and several MPI's without proper initialization
849 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +0100850 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +0100851 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
852 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000853 * Fix an issue in the cipher decryption with the mode
854 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
855 Note, this padding mode is not used by the TLS protocol. Found and fixed by
856 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +0100857 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
858 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
859 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
860 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +0100861 structure. Do not assume that zeroizing a context is a correct way to
862 reset it. Found independently by ccli8 on Github.
863 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000864 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
865 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +0100866
867Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +0000868 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +0100869 and the message digest. Further, allow enabling/disabling of authority
870 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +0000871 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
872 particular, don't require P,Q if neither CRT nor blinding are
873 used. Reported and fix proposed independently by satur9nine and sliai
874 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100875 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +0100876 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
877 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +0100878 * Update all internal usage of deprecated message digest functions to the
879 new ones with return codes. In particular, this modifies the
880 mbedtls_md_info_t structure. Propagate errors from these functions
881 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +0000882 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +0100883 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
884 modules where the software implementation can be replaced by a hardware
885 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +0100886 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
887 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100888
Simon Butcher72ea31b2017-08-10 11:51:16 +0100889= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +0200890
Simon Butcherb060cc22017-07-28 01:04:34 +0100891Security
Simon Butcher01971d02017-08-10 10:48:01 +0100892 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherf85c90a2017-07-27 15:11:52 +0100893 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
894 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +0100895 (default: 8) intermediates, even when it was not trusted. This could be
896 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +0100897 (the default), the handshake was correctly aborted).
898 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +0100899 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
900 Found by Laurent Simon.
Simon Butcherf85c90a2017-07-27 15:11:52 +0100901
Andres Amaya Garcia2187e032017-07-07 13:19:13 +0100902Features
903 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia24f36412017-07-12 11:27:05 +0100904 and the context struct mbedtls_platform_context to perform
905 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia5478bc72017-07-18 10:24:26 +0100906 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +0100907 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +0100908 some embedded environments to provide a means of initialising underlying
909 cryptographic acceleration hardware.
Andres Amaya Garcia2187e032017-07-07 13:19:13 +0100910
Simon Butcherab670432017-07-20 12:33:41 +0200911API Changes
912 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
913 API consistent with mbed TLS 2.5.0. Specifically removed the inline
914 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +0100915 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
916 by James Cowgill. #978
Simon Butcherf85c90a2017-07-27 15:11:52 +0100917 * Certificate verification functions now set flags to -1 in case the full
918 chain was not verified due to an internal error (including in the verify
919 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +0100920 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherf85c90a2017-07-27 15:11:52 +0100921 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +0100922 a fatal error in the verify callback.
Simon Butcherab670432017-07-20 12:33:41 +0200923
Ron Eldore2efaea2016-12-16 16:15:56 +0200924Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +0100925 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
926 Reported by roberto. #716
927 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor63140682017-01-09 19:27:59 +0200928 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +0100929 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +0100930 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
931 in the case of an error. Found by redplait. #590
Ron Eldorca6ff582017-01-12 14:50:50 +0200932 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100933 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciab820bf82017-05-04 11:05:55 +0100934 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
935 compilation when using ARM Compiler 6.
Simon Butcher5deb5182017-07-26 17:25:55 +0100936 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100937 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher5deb5182017-07-26 17:25:55 +0100938 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
939 KNOX Security, Samsung Research America
Andres AG2e65a542017-02-17 13:54:43 +0000940 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100941 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e65a542017-02-17 13:54:43 +0000942 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
943 KNOX Security, Samsung Research America
Simon Butcher5deb5182017-07-26 17:25:55 +0100944 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100945 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher5deb5182017-07-26 17:25:55 +0100946 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +0100947 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +0100948 function mbedtls_time() instead. Found by wairua. #666
949 * Avoid shadowing of time and index functions through mbed TLS function
950 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +0200951
Janos Follath78b14732017-06-22 10:02:07 +0100952Changes
Janos Follathb85291c2017-06-22 10:02:07 +0100953 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +0100954 64-bit division. This is useful on embedded platforms where 64-bit division
955 created a dependency on external libraries. #708
Janos Follath78b14732017-06-22 10:02:07 +0100956 * Removed mutexes from ECP hardware accelerator code. Now all hardware
957 accelerator code in the library leaves concurrency handling to the
958 platform. Reported by Steven Cooreman. #863
Andres Amaya Garciad0e15d72017-06-26 12:57:44 +0100959 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
960 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100961 * Added a test script that can be hooked into git that verifies commits
962 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +0100963 * Improve documentation of PKCS1 decryption functions.
Janos Follath78b14732017-06-22 10:02:07 +0100964
Simon Butcherf2a597f2017-06-20 23:08:10 +0100965= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +0100966
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200967Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +0100968 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
969 The issue could only happen client-side with renegotiation enabled.
970 Could result in DoS (application crash) or information leak
971 (if the application layer sent data read from mbedtls_ssl_read()
972 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +0200973 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
974 certificate verification. SHA-1 can be turned back on with a compile-time
975 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +0200976 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
977 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +0200978 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
979 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200980
Hanno Beckereccf60c2017-06-05 15:19:01 +0100981Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +0100982 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
983 valid C and they prevented the test from compiling in Visual Studio 2015
984 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +0100985 * Fix insufficient support for signature-hash-algorithm extension,
986 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +0100987 * Fix behaviour that hid the original cause of fatal alerts in some cases
988 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +0200989 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100990 * Fix SSLv3 renegotiation behaviour and stop processing data received from
991 peer after sending a fatal alert to refuse a renegotiation attempt.
992 Previous behaviour was to keep processing data even after the alert has
993 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +0100994 * Accept empty trusted CA chain in authentication mode
Simon Butcherb03120a2018-04-30 16:40:25 +0100995 MBEDTLS_SSL_VERIFY_OPTIONAL. Found by Jethro Beekman. #864
Janos Follath5a1c0e72017-06-16 09:00:07 +0100996 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
997 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
998 reflect bad EC curves within verification result.
999 * Fix bug that caused the modular inversion function to accept the invalid
1000 modulus 1 and therefore to hang. Found by blaufish. #641.
1001 * Fix incorrect sign computation in modular exponentiation when the base is
1002 a negative MPI. Previously the result was always negative. Found by Guido
1003 Vranken.
1004 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
1005 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +02001006
Gilles Peskine36091fe2017-05-03 16:55:03 +02001007Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +01001008 * Send fatal alerts in more cases. The previous behaviour was to skip
1009 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +00001010 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +01001011 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +00001012 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +02001013
Simon Butcher9f770172017-05-15 15:13:59 +01001014= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001015
Janos Follath45182a02017-03-23 10:41:56 +00001016Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +01001017 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +01001018 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
1019 Simon.
Janos Follath45182a02017-03-23 10:41:56 +00001020 * Add exponent blinding to RSA private operations as a countermeasure
1021 against side-channel attacks like the cache attack described in
1022 https://arxiv.org/abs/1702.08719v2.
1023 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
1024 Clémentine Maurice and Stefan Mangard.
1025
Simon Butcher4775e832017-05-13 22:56:08 +01001026Features
Janos Follath5a1c0e72017-06-16 09:00:07 +01001027 * Add hardware acceleration support for the Elliptic Curve Point module.
1028 This involved exposing parts of the internal interface to enable
1029 replacing the core functions and adding and alternative, module level
1030 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +01001031 * Add a new configuration option to 'mbedtls_ssl_config' to enable
1032 suppressing the CA list in Certificate Request messages. The default
1033 behaviour has not changed, namely every configured CAs name is included.
1034
Andres AGf5bf7182017-03-03 14:09:56 +00001035API Changes
1036 * The following functions in the AES module have been deprecated and replaced
1037 by the functions shown below. The new functions change the return type from
1038 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
1039 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
1040 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
1041 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
1042
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001043Bugfix
1044 * Remove macros from compat-1.3.h that correspond to deleted items from most
1045 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001046 * Fixed issue in the Threading module that prevented mutexes from
1047 initialising. Found by sznaider. #667 #843
1048 * Add checks in the PK module for the RSA functions on 64-bit systems.
1049 The PK and RSA modules use different types for passing hash length and
1050 without these checks the type cast could lead to data loss. Found by Guido
1051 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001052
Simon Butcherb65c2be2017-03-10 18:50:44 +00001053= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +01001054
Janos Follath182013f2016-10-25 10:50:22 +01001055Security
Simon Butcherb65c2be2017-03-10 18:50:44 +00001056 * Add checks to prevent signature forgeries for very large messages while
1057 using RSA through the PK module in 64-bit systems. The issue was caused by
1058 some data loss when casting a size_t to an unsigned int value in the
1059 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
1060 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +00001061 * Fixed potential livelock during the parsing of a CRL in PEM format in
1062 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
1063 characters after the footer could result in the execution of an infinite
1064 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
1065 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +01001066 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
1067 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +00001068 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +00001069 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
1070 when verifying the validity of a key on secp224k1. This could be
1071 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +00001072 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +00001073 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
1074 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +00001075
Andres AG703990b2016-10-24 11:23:36 +01001076Bugfix
Andres AGd1650662016-12-09 17:26:23 +00001077 * Fix output certificate verification flags set by x509_crt_verify_top() when
1078 traversing a chain of trusted CA. The issue would cause both flags,
1079 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
1080 set when the verification conditions are not met regardless of the cause.
1081 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +00001082 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
1083 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
1084 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +00001085 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
1086 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +00001087 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +00001088 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
1089 would compare 64 bits of the record counter instead of 48 bits as indicated
1090 in RFC 6347 Section 4.3.1. This could cause the execution of the
1091 renegotiation routines at unexpected times when the protocol is DTLS. Found
1092 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +01001093 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +01001094 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +01001095 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +00001096 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
1097 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1098 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
1099 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1100 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
1101 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +00001102 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
1103 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +00001104 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
1105 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +00001106 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
1107 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +00001108 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
1109 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +00001110 * Fixed the templates used to generate project and solution files for Visual
1111 Studio 2015 as well as the files themselves, to remove a build warning
1112 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +02001113 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
1114 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +00001115 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
1116 number to write in hexadecimal is negative and requires an odd number of
1117 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +00001118 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
1119 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +01001120
Janos Follath4c006cd2016-12-13 14:14:03 +00001121= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +00001122
1123Changes
1124 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
1125 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
1126 Authentication – October 2016
1127
Simon Butcher19dbd412016-10-16 19:35:49 +01001128= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +03001129
Andres AG60dbc932016-09-02 15:23:48 +01001130Security
Simon Butcheref8fa012016-10-16 00:44:08 +01001131 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
1132 with RFC-5116 and could lead to session key recovery in very long TLS
1133 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
1134 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
1135 https://eprint.iacr.org/2016/475.pdf
1136 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +01001137 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +01001138 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +01001139 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +01001140
Simon Butchercf8c1f42016-09-02 21:29:39 +03001141Features
Simon Butcher21c54812016-10-05 14:17:37 +01001142 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
1143 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001144 * Added hardware entropy selftest to verify that the hardware entropy source
1145 is functioning correctly.
1146 * Added a script to print build environment info for diagnostic use in test
1147 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +01001148 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
1149 configure the maximum length of a file path that can be buffered when
1150 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +01001151 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +01001152 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +01001153 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
1154 to configure the minimum number of bytes for entropy sources using the
1155 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001156
1157Bugfix
1158 * Fix for platform time abstraction to avoid dependency issues where a build
1159 may need time but not the standard C library abstraction, and added
1160 configuration consistency checks to check_config.h
1161 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +01001162 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
1163 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +03001164 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
1165 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +03001166 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
1167 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +01001168 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +01001169 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +01001170 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +01001171 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +01001172 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +01001173 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +01001174 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
1175 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
1176 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +01001177 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
1178 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +01001179 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +01001180 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +01001181 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +01001182 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +01001183 * Fix potential byte overread when verifying malformed SERVER_HELLO in
1184 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +01001185 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +01001186 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +01001187 * Fix compatibility issue with Internet Explorer client authentication,
1188 where the limited hash choices prevented the client from sending its
1189 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +01001190 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001191
1192Changes
1193 * Extended test coverage of special cases, and added new timing test suite.
1194 * Removed self-tests from the basic-built-test.sh script, and added all
1195 missing self-tests to the test suites, to ensure self-tests are only
1196 executed once.
1197 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
1198 * Added support for a Yotta specific configuration file -
1199 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +01001200 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +01001201 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +01001202 * Renamed source file library/net.c to library/net_sockets.c to avoid
1203 naming collision in projects which also have files with the common name
1204 net.c. For consistency, the corresponding header file, net.h, is marked as
1205 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +01001206 * Changed the strategy for X.509 certificate parsing and validation, to no
1207 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001208
Simon Butcher46125fb2016-06-27 19:43:55 +01001209= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001210
Janos Follathcc4eba72016-02-10 16:25:55 +00001211Security
Janos Follathe43b81a2016-02-10 16:25:55 +00001212 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +00001213 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +00001214 * Fix potential integer overflow to buffer overflow in
1215 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +01001216 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +01001217 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +00001218 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
1219 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +00001220
Simon Butcher3fe6cd32016-04-26 19:51:29 +01001221Features
1222 * Support for platform abstraction of the standard C library time()
1223 function.
1224
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001225Bugfix
1226 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
1227 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001228 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +00001229 * Fix potential build failures related to the 'apidoc' target, introduced
1230 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001231 * Fix issue in Makefile that prevented building using armar. #386
Janos Follath4ae5c292016-02-10 11:27:43 +00001232 * Fix memory leak that occured only when ECJPAKE was enabled and ECDHE and
1233 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +00001234 * Fix an issue that caused valid certificates to be rejected whenever an
1235 expired or not yet valid certificate was parsed before a valid certificate
1236 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +01001237 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +00001238 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +01001239 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +00001240 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
1241 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +01001242 * Fix issue that caused a crash if invalid curves were passed to
1243 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +01001244 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +01001245 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +01001246 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +01001247 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001248
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +01001249Changes
1250 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
1251 don't use the optimized assembly for bignum multiplication. This removes
1252 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +01001253 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +01001254 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
1255 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +01001256 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
1257 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +01001258
1259= mbed TLS 2.2.1 released 2016-01-05
1260
1261Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +01001262 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +01001263 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +00001264 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +01001265 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
1266 SLOTH attack on TLS 1.2 server authentication (other attacks from the
1267 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001268 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +00001269
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001270Bugfix
1271 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
1272 * Fix bug in certificate validation that caused valid chains to be rejected
1273 when the first intermediate certificate has pathLenConstraint=0. Found by
1274 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +00001275 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +00001276 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +01001277 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001278 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +02001279 datagram if a single record in a datagram is unexpected, instead only
1280 drop the record and look at subsequent records (if any are present) in
1281 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +02001282
1283= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +00001284
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +02001285Security
1286 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
1287 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +00001288 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001289 * Fix potential heap corruption on Windows when
1290 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
1291 triggered remotely. Found by Guido Vranken, Intelworks.
1292 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +02001293 Cannot be triggered remotely unless you create X.509 certificates based
1294 on untrusted input or write keys of untrusted origin. Found by Guido
1295 Vranken, Intelworks.
1296 * The X509 max_pathlen constraint was not enforced on intermediate
1297 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001298 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001299
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001300Features
1301 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
1302 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001303 * Added a key extraction callback to accees the master secret and key
1304 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +02001305
1306Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +00001307 * Self-signed certificates were not excluded from pathlen counting,
1308 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001309 provided by Janos Follath. #319
1310 * Fix build error with configurations where ECDHE-PSK is the only key
1311 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001312 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +02001313 ECHD-ECDSA if the only key exchange. Multiple reports. #310
1314 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +02001315 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +09001316 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
1317 size/curve against the profile. Before that, there was no way to set a
1318 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001319 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +01001320 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
1321 Found by Kurt Danielson. #292
1322 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001323 * Fix bug in ASN.1 encoding of booleans that caused generated CA
1324 certificates to be rejected by some applications, including OS X
1325 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +01001326
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +01001327Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +01001328 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
1329 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001330
1331= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +01001332
1333Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +02001334 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
1335 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +01001336 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +02001337 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +01001338 once in the same handhake and mbedtls_ssl_conf_psk() was used.
1339 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
1340 remotely.
1341 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +01001342 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +01001343 Found by Guido Vranken, Intelworks. Not triggerable remotely.
1344 * Fix potential buffer overflow in mbedtls_mpi_read_string().
1345 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
1346 of TLS, but might be in other uses. On 32 bit machines, requires reading a
1347 string of close to or larger than 1GB to exploit; on 64 bit machines, would
1348 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +02001349 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +01001350 on crafted PEM input data. Found and fix provided by Guido Vranken,
1351 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +02001352 accept PEM data from an untrusted source.
1353 * Fix possible heap buffer overflow in base64_encoded() when the input
1354 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +01001355 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +01001356 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001357 the same mbedtls_ssl_config object and memory allocation fails. Found by
1358 Guido Vranken, Intelworks. Cannot be forced remotely.
1359 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +01001360 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001361 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +01001362 Found by Guido Vranken, Intelworks.
1363
1364Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +01001365 * Fix compile error in net.c with musl libc. Found and patch provided by
1366 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +01001367 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +01001368
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001369Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001370 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
1371 domain names are compliant with RFC 1035.
1372 * Fixed paths for check_config.h in example config files. (Found by bachp)
1373 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001374
1375= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001376
1377Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001378 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +01001379 signatures. (Found by Florian Weimer, Red Hat.)
1380 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +02001381 * Fix possible client-side NULL pointer dereference (read) when the client
1382 tries to continue the handshake after it failed (a misuse of the API).
1383 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +01001384 afl-fuzz.)
1385
1386Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +02001387 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
1388 * Fix off-by-one error in parsing Supported Point Format extension that
1389 caused some handshakes to fail.
1390
1391Changes
1392 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
1393 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +01001394 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001395 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001396 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001397 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +02001398 detected and mbedtls_ssl_read() will return
1399 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001400 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001401
1402= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +02001403
1404Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +02001405 * Added support for yotta as a build system.
1406 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001407
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +02001408Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001409 * Fix segfault in the benchmark program when benchmarking DHM.
1410 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +02001411 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +02001412 * Fix bug when parsing a ServerHello without extensions (found by David
1413 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +02001414 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
1415 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +02001416 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
1417 installed (found by Rawi666).
1418 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +02001419 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +02001420 (found by robotanarchy) (#232).
1421 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +02001422 tests (found by robotanarchy) (#232).
1423 * Fix missing -static-libgcc when building shared libraries for Windows
1424 with make.
Simon Butcher52754592015-09-03 13:06:01 +01001425 * Fix link error when building shared libraries for Windows with make.
1426 * Fix error when loading libmbedtls.so.
1427 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
1428 be always used (found by dcb314) (#235)
1429 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
1430 result trying to unlock an unlocked mutex on invalid input (found by
1431 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001432 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +02001433 * Fix memory corruption on client with overlong PSK identity, around
1434 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001435 Aleksandrs Saveljevs) (#238)
1436 * Fix unused function warning when using MBEDTLS_MDx_ALT or
1437 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +02001438 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
1439
1440Changes
Simon Butcher52754592015-09-03 13:06:01 +01001441 * The PEM parser now accepts a trailing space at end of lines (#226).
1442 * It is now possible to #include a user-provided configuration file at the
1443 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
1444 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001445 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +01001446 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +01001447 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001448 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001449 Hugo Leisink) (#210).
1450 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
1451 length.
1452
1453= mbed TLS 2.0.0 released 2015-07-13
1454
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001455Features
1456 * Support for DTLS 1.0 and 1.2 (RFC 6347).
1457 * Ability to override core functions from MDx, SHAx, AES and DES modules
1458 with custom implementation (eg hardware accelerated), complementing the
1459 ability to override the whole module.
1460 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +02001461 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001462 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +02001463 which algorithms and key sizes (curves for ECDSA) are acceptable.
1464 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001465 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001466 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001467 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001468
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +02001469API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +02001470 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
1471 You now need to link to all of them if you use TLS for example.
1472 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001473 Some names have been further changed to make them more consistent.
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001474 Migration helpers scripts/rename.pl and include/mbedlts/compat-1.3.h are
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001475 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001476 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +02001477 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001478 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +02001479 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001480 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
1481 * The following _init() functions that could return errors have
Tillmann Karras588ad502015-09-25 04:27:22 +02001482 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001483 should generally be the first function called on this context after init:
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001484 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001485 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
1486 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
1487 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
1488 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001489 Note that for mbedtls_ssl_setup(), you need to be done setting up the
1490 ssl_config structure before calling it.
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001491 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
1492 ssl_set_session() and ssl_set_client_transport_id(), plus
1493 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
1494 (see rename.pl and compat-1.3.h above) and their first argument's type
1495 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001496 * ssl_set_bio() changed signature (contexts merged, order switched, one
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01001497 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001498 * The following functions have been introduced and must be used in callback
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01001499 implementations (SNI, PSK) instead of their *conf counterparts:
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001500 mbedtls_ssl_set_hs_own_cert()
1501 mbedtls_ssl_set_hs_ca_chain()
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02001502 mbedtls_ssl_set_hs_psk()
1503 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001504 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001505 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001506 pointer, parameters reordered).
1507 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
1508 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001509 * The SSL debug callback gained two new arguments (file name, line number).
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001510 * Debug modes were removed.
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01001511 * mbedtls_ssl_conf_truncated_hmac() now returns void.
1512 * mbedtls_memory_buffer_alloc_init() now returns void.
1513 * X.509 verification flags are now an uint32_t. Affect the signature of:
1514 mbedtls_ssl_get_verify_result()
1515 mbedtls_x509_ctr_verify_info()
1516 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02001517 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
1518 * The following functions changed prototype to avoid an in-out length
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02001519 parameter:
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02001520 mbedtls_base64_encode()
1521 mbedtls_base64_decode()
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02001522 mbedtls_mpi_write_string()
1523 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02001524 * In the NET module, all "int" and "int *" arguments for file descriptors
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02001525 changed type to "mbedtls_net_context *".
1526 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01001527 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
1528 return void.
1529 * ecdsa_write_signature() gained an addtional md_alg argument and
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01001530 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02001531 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
1532 * Last argument of x509_crt_check_key_usage() and
1533 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00001534 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02001535 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
1536 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02001537 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001538 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
1539 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02001540 length parameter to include the terminating null byte for PEM input.
1541 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001542 * calloc() is now used instead of malloc() everywhere. API of platform
1543 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02001544 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001545 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
1546 (support for renegotiation now needs explicit enabling in config.h).
1547 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001548 in config.h
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02001549 * net_connect() and net_bind() have a new 'proto' argument to choose
1550 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02001551 Their 'port' argument type is changed to a string.
1552 * Some constness fixes
1553
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02001554Removals
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02001555 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001556 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
1557 mbedtls_ecp_muladd().
1558 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
1559 (use generic functions from md.h)
1560 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
1561 waiting function.
1562 * Removed test DHM parameters from the test certs module.
1563 * Removed the PBKDF2 module (use PKCS5).
1564 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
1565 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
1566 * Removed openssl.h (very partial OpenSSL compatibility layer).
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001567 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
1568 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
1569 been removed (compiler is required to support 32-bit operations).
1570 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001571 * Removed test program o_p_test, the script compat.sh does more.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001572 * Removed test program ssl_test, superseded by ssl-opt.sh.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001573 * Removed helper script active-config.pl
1574
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02001575New deprecations
1576 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001577 argument (allowing memory savings if HMAC is not used)
1578
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01001579Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001580 * Renamed a few headers to include _internal in the name. Those headers are
1581 not supposed to be included by users.
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001582 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001583 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02001584 * Changed cipher_base_t into an opaque structure.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001585 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
1586 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001587 * Removed r and s from ecdsa_context
1588 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01001589
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02001590Default behavior changes
1591 * The default minimum TLS version is now TLS 1.0.
1592 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01001593 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001594 * Support for receiving SSLv2 ClientHello is now disabled by default at
1595 compile time.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01001596 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02001597 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
1598 enabled in the default configuration, this is only noticeable if using a
1599 custom config.h
1600 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
1601 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
1602 chain verification.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001603 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001604 * The following functions are now case-sensitive:
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001605 mbedtls_cipher_info_from_string()
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001606 mbedtls_ecp_curve_info_from_name()
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001607 mbedtls_md_info_from_string()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001608 mbedtls_ssl_ciphersuite_from_string()
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001609 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001610
1611Requirement changes
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001612 * The minimum MSVC version required is now 2010 (better C99 support).
1613 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
1614 * Compiler is required to support C99 types such as long long and uint32_t.
1615
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02001616API changes from the 1.4 preview branch
1617 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
1618 new prototype, and mbedtls_ssl_set_read_timeout().
1619 * The following functions now return void:
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02001620 mbedtls_ssl_conf_transport()
1621 mbedtls_ssl_conf_max_version()
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001622 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001623 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
1624 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
1625 an example implementation, see mbedtls_timing_delay_context and
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001626 mbedtls_timing_set/get_delay().
1627 * With UDP sockets, it is no longer necessary to call net_bind() again
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001628 after a successful net_accept().
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001629
1630Changes
1631 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02001632 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01001633 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
1634 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02001635
1636= mbed TLS 1.3 branch
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001637
1638Security
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02001639 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
1640 extendedKeyUsage on the leaf certificate was lost (results not accessible
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02001641 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02001642 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02001643 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01001644
1645Features
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001646 * Improve ECC performance by using more efficient doubling formulas
1647 (contributed by Peter Dettman).
1648 * Add x509_crt_verify_info() to display certificate verification results.
1649 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00001650 (contributed by Daniel Kahn Gillmor).
1651 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00001652 * Add support for id-at-uniqueIdentifier in X.509 names.
1653 * Add support for overriding snprintf() (except on Windows) and exit() in
1654 the platform layer.
1655 * Add an option to use macros instead of function pointers in the platform
1656 layer (helps get rid of unwanted references).
1657 * Improved Makefiles for Windows targets by fixing library targets and making
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001658 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001659 * The benchmark program also prints heap usage for public-key primitives
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001660 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001661 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001662 speed and RAM (heap only for now) usage.
1663 * New script memory.sh helps measuring the ROM and RAM requirements of two
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01001664 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01001665 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001666 warnings on use of deprecated functions (with GCC and Clang only).
1667 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001668 errors on use of deprecated functions.
1669
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001670Bugfix
1671 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001672 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
1673 * Fix bug in entropy.c when THREADING_C is also enabled that caused
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001674 entropy_free() to crash (thanks to Rafał Przywara).
1675 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001676 once on the same context.
1677 * Fix bug in ssl_mail_client when password is longer that username (found
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001678 by Bruno Pape).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001679 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1680 (detected by Clang's 3.6 UBSan).
1681 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001682 initialized but not set (found by pravic).
1683 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001684 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001685 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001686 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1687 ssl_write() is called before the handshake is finished (introduced in
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001688 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001689 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1690 rejected.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001691 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001692 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
1693 * Fix hardclock() (only used in the benchmarking program) with some
1694 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001695 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001696 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1697 platforms.
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001698 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
1699 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001700 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1701 in 1.3.10).
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001702 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
1703 * Add missing dependency on SHA-256 in some x509 programs (reported by
1704 Gergely Budai).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001705 * Fix bug related to ssl_set_curves(): the client didn't check that the
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001706 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001707
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001708Changes
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001709 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1710 * Remove potential sources of timing variations (some contributed by Pascal
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001711 Junod).
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001712 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001713 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
1714 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001715 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
1716 more flexible (warning: OFLAGS is not used any more) (see the README)
1717 (contributed by Alon Bar-Lev).
1718 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001719 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001720 * Move from SHA-1 to SHA-256 in example programs using signatures
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001721 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001722 * Remove some unneeded inclusions of header files from the standard library
1723 "minimize" others (eg use stddef.h if only size_t is needed).
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001724 * Change #include lines in test files to use double quotes instead of angle
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001725 brackets for uniformity with the rest of the code.
1726 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001727
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001728= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001729Security
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001730 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001731 full and polarssl_free() is called (found by Mark Hasemeyer)
1732 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1733 not by default).
1734 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001735 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001736 client certificate) (found using Codenomicon Defensics).
1737 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
1738 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001739 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001740 * Fix potential stack overflow while parsing crafted X.509 certificates
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001741 (TLS server is not affected if it doesn't ask for a client certificate)
1742 (found using Codenomicon Defensics).
1743 * Fix timing difference that could theoretically lead to a
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001744 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001745 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001746
1747Features
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001748 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001749 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
Paul Bakker6152b022015-04-14 15:00:09 +02001750 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001751 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001752 * Add x509_crl_parse_der().
1753 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001754 length of an X.509 verification chain.
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001755 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001756 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
1757 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001758 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001759 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1760 a compatible enough libc (eg uClibc).
1761 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001762 while using the default ciphersuite list.
1763 * Added new error codes and debug messages about selection of
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001764 ciphersuite/certificate.
1765
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001766Bugfix
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001767 * Stack buffer overflow if ctr_drbg_update() is called with too large
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001768 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
1769 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001770 if memory_buffer_alloc_init() was called with buf not aligned and len not
1771 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001772 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001773 by Julian Ospald).
1774 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001775 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1776 multiple of 8 (found by Gergely Budai).
1777 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1778 Peter Vaskovic).
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001779 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
1780 * ssl_get_verify_result() now works even if the handshake was aborted due
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001781 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001782 * Skip writing and parsing signature_algorithm extension if none of the
1783 key exchanges enabled needs certificates. This fixes a possible interop
1784 issue with some servers when a zero-length extension was sent. (Reported
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001785 by Peter Dettman.)
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001786 * On a 0-length input, base64_encode() did not correctly set output length
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001787 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001788
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001789Changes
1790 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
Paul Bakkere522d0f2015-01-14 16:12:48 +01001791 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001792 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001793 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001794 * Forbid repeated extensions in X.509 certificates.
1795 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001796 * A specific error is now returned when there are ciphersuites in common
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001797 but none of them is usable due to external factors such as no certificate
Paul Bakker9eac4f72014-10-20 13:56:15 +02001798 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001799 * It is now possible to disable negotiation of truncated HMAC server-side
1800 at runtime with ssl_set_truncated_hmac().
1801 * Example programs for SSL client and server now disable SSLv3 by default.
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001802 * Example programs for SSL client and server now disable RC4 by default.
Paul Bakkerb082bb52014-10-20 13:37:51 +02001803 * Use platform.h in all test suites and programs.
1804
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001805= PolarSSL 1.3.9 released 2014-10-20
Paul Bakkerb082bb52014-10-20 13:37:51 +02001806Security
1807 * Lowest common hash was selected from signature_algorithms extension in
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001808 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001809 * Remotely-triggerable memory leak when parsing some X.509 certificates
1810 (server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001811 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001812 * Remotely-triggerable memory leak when parsing crafted ClientHello
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001813 (not affected if ECC support was compiled out) (found using Codenomicon
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001814 Defensics).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001815
1816Bugfix
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001817 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001818 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
1819 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001820 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
1821 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001822 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1823 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001824 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001825 * ssl_read() could return non-application data records on server while
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001826 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001827 * Server-initiated renegotiation would fail with non-blocking I/O if the
1828 write callback returned WANT_WRITE when requesting renegotiation.
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001829 * ssl_close_notify() could send more than one message in some circumstances
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001830 with non-blocking I/O.
1831 * Fix compiler warnings on iOS (found by Sander Niemeijer).
1832 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001833 * Fix compile error with armcc in mpi_is_prime()
1834 * Fix potential bad read in parsing ServerHello (found by Adrien
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02001835 Vialletelle).
1836
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001837Changes
1838 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02001839 standard defining how to use SHA-2 with SSL 3.0).
1840 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02001841 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001842 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
1843 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001844 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
Paul Bakker1910aa72014-07-11 11:28:56 +02001845 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02001846 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
1847 RSA keys.
1848 * Accept spaces at end of line or end of buffer in base64_decode().
1849 * X.509 certificates with more than one AttributeTypeAndValue per
1850 RelativeDistinguishedName are not accepted any more.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001851
1852= PolarSSL 1.3.8 released 2014-07-11
1853Security
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02001854 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1855 It was possible to crash the server (and client) using crafted messages
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02001856 when a GCM suite was chosen.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02001857
1858Features
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02001859 * Add CCM module and cipher mode to Cipher Layer
1860 * Support for CCM and CCM_8 ciphersuites
Paul Bakker23647b42014-07-04 15:00:12 +02001861 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
1862 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02001863 * Blowfish in the cipher layer now supports variable length keys.
1864 * Add example config.h for PSK with CCM, optimized for low RAM usage.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001865 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Paul Bakker863989b2014-06-12 21:49:01 +02001866 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
1867 from the default list (inactive by default).
1868 * Add server-side enforcement of sent renegotiation requests
Paul Bakker34617722014-06-13 17:20:13 +02001869 (ssl_set_renegotiation_enforced())
1870 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02001871 ciphersuites to use and save some memory if the list is small.
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02001872
1873Changes
Paul Bakker28476e22014-07-01 15:59:04 +02001874 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
1875 required on some platforms (e.g. OpenBSD)
Paul Bakker863989b2014-06-12 21:49:01 +02001876 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
Paul Bakker5593f7c2014-05-06 10:29:28 +02001877 against unwanted compiler optimizations
1878 * md_list() now returns hashes strongest first
Paul Bakker1ebc0c52014-05-22 15:47:58 +02001879 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
Paul Bakkerdff31392014-05-22 15:06:41 +02001880 strongest offered by client.
Paul Bakker0f651c72014-05-22 15:12:19 +02001881 * All public contexts have _init() and _free() functions now for simpler
1882 usage pattern
Paul Bakker49033ba2014-06-12 21:46:13 +02001883
1884Bugfix
1885 * Fix in debug_print_msg()
1886 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakker3c38f292014-06-13 17:37:46 +02001887 * Remove less-than-zero checks on unsigned numbers
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001888 * Stricter check on SSL ClientHello internal sizes compared to actual packet
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02001889 size (found by TrustInSoft)
1890 * Fix WSAStartup() return value check (found by Peter Vaskovic)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001891 * Other minor issues (found by Peter Vaskovic)
1892 * Fix symlink command for cross compiling with CMake (found by Andre
1893 Heinecke)
1894 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02001895 * Very small records were incorrectly rejected when truncated HMAC was in
1896 use with some ciphersuites and versions (RC4 in all versions, CBC with
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02001897 versions < TLS 1.1).
1898 * Very large records using more than 224 bytes of padding were incorrectly
1899 rejected with CBC-based ciphersuites and TLS >= 1.1
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07001900 * Very large records using less padding could cause a buffer overread of up
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02001901 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
1902 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02001903 been removed in 1.3.6.)
1904 * Restore ability to locally trust a self-signed cert that is not a proper
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02001905 CA for use as an end entity certificate. (This had been removed in
1906 1.3.6.)
1907 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02001908 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
Paul Bakkerd5983182014-07-04 13:50:31 +02001909 interpret semicolons as comment delimiters (found by Barry K. Nathan).
1910 * Fix off-by-one error in parsing Supported Point Format extension that
Paul Bakker6c343d72014-07-10 14:36:19 +02001911 caused some handshakes to fail.
1912 * Fix possible miscomputation of the premaster secret with DHE-PSK key
Paul Bakker5593f7c2014-05-06 10:29:28 +02001913 exchange that caused some handshakes to fail with other implementations.
Paul Bakker47431b62014-05-02 13:27:13 +02001914 (Failure rate <= 1/255 with common DHM moduli.)
Paul Bakkereaebbd52014-04-25 15:04:14 +02001915 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerc73079a2014-04-25 16:34:30 +02001916 * Fix base64_decode() to return and check length correctly (in case of
1917 tight buffers)
Paul Bakker0f90d7d2014-04-30 11:49:44 +02001918 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
1919 by Hui Dong)
Paul Bakker92478c32014-04-25 15:18:34 +02001920
Paul Bakker088c5c52014-04-25 11:11:10 +02001921= PolarSSL 1.3.7 released on 2014-05-02
1922Features
1923 * debug_set_log_mode() added to determine raw or full logging
Paul Bakker92478c32014-04-25 15:18:34 +02001924 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker63844402014-04-30 15:34:12 +02001925 * version_check_feature() added to check for compile-time options at
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02001926 run-time
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02001927
Paul Bakker088c5c52014-04-25 11:11:10 +02001928Changes
Paul Bakkere92f73d2014-04-18 14:08:26 +02001929 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
1930 checked and filled in the relevant module headers
1931 * Debug module only outputs full lines instead of parts
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02001932 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
1933 * AES-NI now compiles with "old" assemblers too
Paul Bakkerfdba4682014-04-25 11:48:35 +02001934 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker61885c72014-04-25 12:59:03 +02001935
1936Bugfix
Paul Bakkera7036632014-04-30 10:15:38 +02001937 * Only iterate over actual certificates in ssl_write_certificate_request()
1938 (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02001939 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
Paul Bakkerf96f7b62014-04-30 16:02:38 +02001940 Karger)
Paul Bakker33dc46b2014-04-30 16:11:39 +02001941 * cert_write app should use subject of issuer certificate as issuer of cert
1942 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02001943 ciphersuites, for full SSL frames of data.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02001944 * Improve interoperability by not writing extension length in ClientHello /
Markus Pfeiffera26a0052014-04-22 20:16:15 +00001945 ServerHello when no extensions are present (found by Matthew Page)
Barry K. Nathancf975f52014-04-23 17:40:25 -07001946 * rsa_check_pubkey() now allows an E up to N
1947 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakkere92f73d2014-04-18 14:08:26 +02001948 * mpi_fill_random() was creating numbers larger than requested on
Paul Bakker784b04f2014-04-11 15:33:59 +02001949 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001950 * Fix dependencies issues in X.509 test suite.
Paul Bakker27e36d32014-04-08 12:33:37 +02001951 * Some parts of ssl_tls.c were compiled even when the module was disabled.
1952 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Paul Bakker1cfc4582014-04-09 15:25:13 +02001953 * Fix detection of Clang on some Apple platforms with CMake
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001954 (found by Barry K. Nathan)
Paul Bakker59366212014-04-09 15:55:20 +02001955
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001956= PolarSSL 1.3.6 released on 2014-04-11
1957
Paul Bakker27e36d32014-04-08 12:33:37 +02001958Features
Paul Bakker4984d3c2014-04-04 15:39:37 +02001959 * Support for the ALPN SSL extension
1960 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02001961 * Enable verification of the keyUsage extension for CA and leaf
1962 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02001963 * Enable verification of the extendedKeyUsage extension
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02001964 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker4984d3c2014-04-04 15:39:37 +02001965
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001966Changes
1967 * x509_crt_info() now prints information about parsed extensions as well
1968 * pk_verify() now returns a specific error code when the signature is valid
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02001969 but shorter than the supplied length.
1970 * Use UTC time to check certificate validity.
1971 * Reject certificates with times not in UTC, per RFC 5280.
1972
Paul Bakker4224bc02014-04-08 14:36:50 +02001973Security
1974 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001975 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001976 * The notAfter date of some certificates was no longer checked since 1.3.5.
1977 This affects certificates in the user-supplied chain except the top
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01001978 certificate. If the user-supplied chain contains only one certificates,
Paul Bakker75a28602014-03-31 12:08:17 +02001979 it is not affected (ie, its notAfter date is properly checked).
1980 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02001981 TrustInSoft)
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02001982
1983Bugfix
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02001984 * The length of various ClientKeyExchange messages was not properly checked.
1985 * Some example server programs were not sending the close_notify alert.
Shuo Chen95a0d112014-04-04 21:04:40 -07001986 * Potential memory leak in mpi_exp_mod() when error occurs during
1987 calculation of RR.
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01001988 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
1989 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01001990 Gergely Budai).
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02001991 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
1992 (found by Gergely Budai)
Paul Bakker16300582014-04-11 13:28:43 +02001993 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
1994 Shuo Chen).
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02001995 * oid_get_numeric_string() used to truncate the output without returning an
1996 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001997 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Paul Bakker96d52652014-03-26 16:55:50 +01001998 * Calling pk_debug() on an RSA-alt key would segfault.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001999 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
2000 * Potential buffer overwrite in pem_write_buffer() because of low length
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002001 indication (found by Thijs Alkemade)
Paul Bakker6a28e722014-02-06 13:41:55 +01002002 * EC curves constants, which should be only in ROM since 1.3.3, were also
Paul Bakkerf2561b32014-02-06 15:11:55 +01002003 stored in RAM due to missing 'const's (found by Gergely Budai).
Paul Bakker2ceda572014-02-06 15:55:25 +01002004
2005= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002006Features
2007 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01002008 * Option to set the Curve preference order (disabled by default)
Paul Bakker66ff70d2014-03-26 11:54:05 +01002009 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakker6a28e722014-02-06 13:41:55 +01002010 * Ability to provide alternate timing implementation
2011 * Ability to force the entropy module to use SHA-256 as its basis
2012 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker47703a02014-02-06 15:01:20 +01002013 * Testing script ssl-opt.sh added for testing 'live' ssl option
2014 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01002015 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01002016 * Entropy module now supports seed writing and reading
2017
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002018Changes
2019 * Deprecated the Memory layer
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002020 * entropy_add_source(), entropy_update_manual() and entropy_gather()
Paul Bakker674e0b02014-03-26 13:26:52 +01002021 now thread-safe if POLARSSL_THREADING_C defined
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002022 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002023 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2024 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01002025 * Revamped the compat.sh interoperatibility script to include support for
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002026 testing against GnuTLS
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01002027 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01002028 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002029
Paul Bakker91c61bc2014-03-26 14:06:55 +01002030Security
2031 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002032 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002033 attack was already impossible when authentication is required).
2034 * Check notBefore timestamp of certificates and CRLs from the future.
2035 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002036 * Fixed possible buffer overflow with overlong PSK
Paul Bakkercd6d69a2014-02-06 15:43:21 +01002037 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01002038 TrustInSoft)
Paul Bakker3d52ab72014-03-07 10:33:55 +01002039
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01002040Bugfix
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01002041 * ecp_gen_keypair() does more tries to prevent failure because of
Alex Wilson73491422014-03-06 00:04:09 +10002042 statistics
2043 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002044 * Fixed testing with out-of-source builds using cmake
2045 * Fixed version-major intolerance in server
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01002046 * Fixed CMake symlinking on out-of-source builds
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002047 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002048 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002049 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01002050 Alex Wilson.)
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002051 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
Paul Bakker3d6504a2014-03-17 13:41:51 +01002052 * m_sleep() was sleeping twice too long on most Unix platforms.
2053 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakker77f4f392014-03-26 15:28:55 +01002054 send() would return an EAGAIN error when sending the ticket.
2055 * ssl_cache was leaking memory when reusing a timed out entry containing a
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01002056 client certificate.
Paul Bakker5fff23b2014-03-26 15:34:54 +01002057 * ssl_srv was leaking memory when client presented a timed out ticket
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002058 containing a client certificate
Paul Bakker2aca2412014-01-27 11:49:46 +01002059 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
Paul Bakker3eb96732014-01-22 13:08:19 +01002060 out_ctr failed
Paul Bakker0ac99ca2014-01-22 13:08:44 +01002061 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
Paul Bakker5862eee2014-01-22 14:18:03 +01002062 of one of them failed
Paul Bakker556efba2014-01-24 15:38:12 +01002063 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01002064 * x509_get_current_time() uses localtime_r() to prevent thread issues
Paul Bakker3eb96732014-01-22 13:08:19 +01002065
2066= PolarSSL 1.3.4 released on 2014-01-27
2067Features
2068 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakkerd75ba402014-01-24 16:11:17 +01002069 * Support for RIPEMD-160
Paul Bakkerb84582b2014-01-27 12:23:43 +01002070 * Support for AES CFB8 mode
2071 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01002072
2073Bugfix
2074 * Potential memory leak in bignum_selftest()
Paul Bakkerb84582b2014-01-27 12:23:43 +01002075 * Replaced expired test certificate
2076 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakker3eb96732014-01-22 13:08:19 +01002077 * net module handles timeouts on blocking sockets better (found by Tilman
Paul Bakker5bc07a32013-12-31 10:57:44 +01002078 Sauerbeck)
Paul Bakker014f1432013-12-02 14:54:01 +01002079 * Assembly format fixes in bn_mul.h
2080
Paul Bakker9dc53a92013-12-02 14:55:28 +01002081Security
2082 * Missing MPI_CHK calls added around unguarded mpi calls (found by
Paul Bakker48d78a52013-12-05 16:11:38 +01002083 TrustInSoft)
Paul Bakkerfdf94692013-12-17 13:09:31 +01002084
Paul Bakker5a607d22013-12-17 14:33:42 +01002085= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker23116fd2013-12-30 14:09:47 +01002086Features
Paul Bakkerf9c49532013-12-19 15:40:58 +01002087 * EC key generation support in gen_key app
Paul Bakker014f1432013-12-02 14:54:01 +01002088 * Support for adhering to client ciphersuite order preference
Paul Bakker7aa03752013-11-26 17:37:31 +01002089 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
2090 * Support for Curve25519
2091 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
2092 * Support for IPv6 in the NET module
Paul Bakkerc3d0d072013-12-02 14:50:49 +01002093 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakker4040d7e2013-12-02 14:52:57 +01002094 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakkerb14817d2013-12-02 22:03:23 +01002095
Paul Bakker5ab68ba2013-12-17 13:10:48 +01002096Changes
Paul Bakkerc7387912013-12-31 10:32:50 +01002097 * gen_prime() speedup
Paul Bakkera8fd3e32013-12-31 11:54:08 +01002098 * Speedup of ECP multiplication operation
Paul Bakker7aa03752013-11-26 17:37:31 +01002099 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002100 * Dropped use of readdir_r() instead of readdir() with threading support
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01002101 * More constant-time checks in the RSA module
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002102 * Split off curves from ecp.c into ecp_curves.c
Paul Bakkera9a028e2013-11-21 17:31:06 +01002103 * Curves are now stored fully in ROM
Paul Bakker7aa03752013-11-26 17:37:31 +01002104 * Memory usage optimizations in ECP module
2105 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker6f0636a2013-12-16 15:24:05 +01002106
Paul Bakkerf70fe812013-12-16 16:43:10 +01002107Bugfix
Paul Bakker1a56fc92013-12-19 13:51:24 +01002108 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakker6ea1a952013-12-31 11:16:03 +01002109 * Fixed X.509 hostname comparison (with non-regular characters)
2110 * SSL now gracefully handles missing RNG
Paul Bakker6992eb72013-12-31 11:35:16 +01002111 * Missing defines / cases for RSA_PSK key exchange
2112 * crypt_and_hash app checks MAC before final decryption
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002113 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakker956c9e02013-12-19 14:42:28 +01002114 * Memory leak in benchmark application
2115 * Fixed x509_crt_parse_path() bug on Windows platforms
2116 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2117 TrustInSoft)
Paul Bakkerf4dc1862013-11-04 17:29:42 +01002118 * Fixed potential overflow in certificate size verification in
Paul Bakker08bb1872013-10-28 14:03:26 +01002119 ssl_write_certificate() (found by TrustInSoft)
2120
Paul Bakker3f917e22013-10-28 14:16:59 +01002121Security
Paul Bakker16421222013-10-28 14:37:09 +01002122 * Possible remotely-triggered out-of-bounds memory access fixed (found by
Paul Bakker08bb1872013-10-28 14:03:26 +01002123 TrustInSoft)
Paul Bakker7bc745b2013-10-28 14:39:49 +01002124
2125= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakkere1121b62013-10-31 14:37:37 +01002126Features
Paul Bakker7b0be682013-10-29 14:24:37 +01002127 * PK tests added to test framework
Paul Bakkere1121b62013-10-31 14:37:37 +01002128 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker7bc745b2013-10-28 14:39:49 +01002129 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker677377f2013-10-28 12:54:26 +01002130
Paul Bakker16421222013-10-28 14:37:09 +01002131Changes
Paul Bakker677377f2013-10-28 12:54:26 +01002132 * Padding checks in cipher layer are now constant-time
Paul Bakker45a2c8d2013-10-28 12:57:08 +01002133 * Value comparisons in SSL layer are now constant-time
Paul Bakker68037da2013-10-28 14:02:40 +01002134 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakker50dc8502013-10-28 21:19:10 +01002135 * SSL Renegotiation was refactored
Paul Bakker93c6aa42013-10-28 22:28:09 +01002136
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01002137Bugfix
Paul Bakkerfa6a6202013-10-28 18:48:30 +01002138 * More stringent checks in cipher layer
Paul Bakkere1121b62013-10-31 14:37:37 +01002139 * Server does not send out extensions not advertised by client
Paul Bakker677377f2013-10-28 12:54:26 +01002140 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002141 * Misc fixes and additions to dependency checks
Paul Bakkerb799dec2013-10-11 10:03:27 +02002142 * Const correctness
2143 * cert_write with selfsign should use issuer_name as subject_name
Paul Bakker376e8152013-10-15 12:44:23 +02002144 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerf34673e2013-10-15 12:46:17 +02002145 * Defines to handle UEFI environment under MSVC
Paul Bakkerb799dec2013-10-11 10:03:27 +02002146 * Server-side initiated renegotiations send HelloRequest
Paul Bakkerddba8822013-10-11 09:21:56 +02002147
2148= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakker16770332013-10-11 09:59:44 +02002149Features
Paul Bakkerbe089b02013-10-14 15:51:50 +02002150 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakkera7ea6a52013-10-15 11:55:10 +02002151 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerddba8822013-10-11 09:21:56 +02002152 * Support for RSA-PSK key-exchange and ciphersuites
2153
2154Changes
2155 * RSA blinding locks for a smaller amount of time
2156 * TLS compression only allocates working buffer once
Paul Bakkerfcc17212013-10-11 09:36:52 +02002157 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02002158 * config.h is more script-friendly
Paul Bakker4aa40d42013-10-11 10:49:24 +02002159
Paul Bakkerb7c13122013-10-11 10:51:32 +02002160Bugfix
Paul Bakker5191e922013-10-11 10:54:28 +02002161 * Missing MSVC defines added
Paul Bakkerddba8822013-10-11 09:21:56 +02002162 * Compile errors with POLARSSL_RSA_NO_CRT
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002163 * Header files with 'polarssl/'
Paul Bakker41c83d32013-03-20 14:39:14 +01002164 * Const correctness
2165 * Possible naming collision in dhm_context
2166 * Better support for MSVC
2167 * threading_set_alt() name
2168 * Added missing x509write_crt_set_version()
Paul Bakkerc8676782013-08-28 12:15:11 +02002169
2170= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker8f4ddae2013-04-15 15:09:54 +02002171Features
Paul Bakkerb91c2b52013-04-19 16:05:16 +02002172 * Elliptic Curve Cryptography module added
Paul Bakker6e339b52013-07-03 13:37:05 +02002173 * Elliptic Curve Diffie Hellman module added
2174 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
Paul Bakker2466d932013-09-28 14:40:38 +02002175 (ECDHE-based ciphersuites)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002176 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
Paul Bakkerf85778e2013-07-19 14:55:25 +02002177 (ECDSA-based ciphersuites)
2178 * Ability to specify allowed ciphersuites based on the protocol version.
2179 * PSK and DHE-PSK based ciphersuites added
2180 * Memory allocation abstraction layer added
Paul Bakkerda4d1c32013-08-14 12:24:34 +02002181 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
2182 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker936539a2013-08-14 13:49:20 +02002183 * Public Key abstraction layer added
Paul Bakkerca174fe2013-08-28 16:31:30 +02002184 * Parsing Elliptic Curve keys
2185 * Parsing Elliptic Curve certificates
Paul Bakker7fb4a792013-09-12 12:00:52 +02002186 * Support for max_fragment_length extension (RFC 6066)
2187 * Support for truncated_hmac extension (RFC 6066)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02002188 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
Paul Bakker8b817dc2013-09-25 18:03:58 +02002189 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
2190 * Support for session tickets (RFC 5077)
Paul Bakker41c83d32013-03-20 14:39:14 +01002191 * Certificate Request (CSR) generation with extensions (key_usage,
Paul Bakker9b5798d2013-03-13 13:53:00 +01002192 ns_cert_type)
Paul Bakkerd2f068e2013-08-27 21:19:20 +02002193 * X509 Certificate writing with extensions (basic_constraints,
2194 issuer_key_identifier, etc)
Paul Bakker68884e32013-01-07 18:20:04 +01002195 * Optional blinding for RSA, DHM and EC
2196 * Support for multiple active certificate / key pairs in SSL servers for
Darryl Green11999bb2018-03-13 15:22:58 +00002197 the same host (Not to be confused with SNI!)
Paul Bakker9b5798d2013-03-13 13:53:00 +01002198
Paul Bakker90f042d2013-03-11 11:38:44 +01002199Changes
Paul Bakkerc0463502013-02-14 11:19:38 +01002200 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
2201 individually
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01002202 * Introduced separate SSL Ciphersuites module that is based on
2203 Cipher and MD information
Paul Bakkerc70b9822013-04-07 22:00:46 +02002204 * Internals for SSL module adapted to have separate IV pointer that is
2205 dynamically set (Better support for hardware acceleration)
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02002206 * Moved all OID functionality to a separate module. RSA function
Paul Bakker2fbefde2013-06-29 16:01:15 +02002207 prototypes for the RSA sign and verify functions changed as a result
2208 * Split up the GCM module into a starts/update/finish cycle
Paul Bakkere2ab84f2013-06-29 18:24:32 +02002209 * Client and server now filter sent and accepted ciphersuites on minimum
2210 and maximum protocol version
Paul Bakker0be444a2013-08-27 21:55:01 +02002211 * Ability to disable server_name extension (RFC 6066)
Paul Bakkere47b34b2013-02-27 14:48:00 +01002212 * Renamed error_strerror() to the less conflicting polarssl_strerror()
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002213 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9e36f042013-06-30 14:34:05 +02002214 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakker548957d2013-08-30 10:30:02 +02002215 * All RSA operations require a random generator for blinding purposes
Paul Bakker45f21c72013-09-18 15:33:49 +02002216 * X509 core refactored
2217 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002218 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02002219 * Support faulty X509 v1 certificates with extensions
2220 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakkere47b34b2013-02-27 14:48:00 +01002221
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002222Bugfix
Paul Bakker73d44312013-05-22 13:56:26 +02002223 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02002224 * zlib compression/decompression skipped on empty blocks
Paul Bakker1e6a1752013-07-26 14:10:22 +02002225 * Support for AIX header locations in net.c module
Paul Bakker003dbad2013-09-09 17:26:14 +02002226 * Fixed file descriptor leaks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002227
Paul Bakkeraab30c12013-08-30 11:00:25 +02002228Security
2229 * RSA blinding on CRT operations to counter timing attacks
2230 (found by Cyril Arnaud and Pierre-Alain Fouque)
2231
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02002232
2233= Version 1.2.14 released 2015-05-??
2234
2235Security
2236 * Fix potential invalid memory read in the server, that allows a client to
2237 crash it remotely (found by Caj Larsson).
2238 * Fix potential invalid memory read in certificate parsing, that allows a
2239 client to crash the server remotely if client authentication is enabled
2240 (found using Codenomicon Defensics).
2241 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
2242 https://dl.acm.org/citation.cfm?id=2714625
2243
2244Bugfix
2245 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
2246 * Fix hardclock() (only used in the benchmarking program) with some
2247 versions of mingw64 (found by kxjhlele).
2248 * Fix warnings from mingw64 in timing.c (found by kxjklele).
2249 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
2250 platforms (found with Coverity Scan).
2251
2252= Version 1.2.13 released 2015-02-16
2253Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
2254 this will be made in the 1.2 branch at this point.
2255
2256Security
2257 * Fix remotely-triggerable uninitialised pointer dereference caused by
2258 crafted X.509 certificate (TLS server is not affected if it doesn't ask
2259 for a client certificate) (found using Codenomicon Defensics).
2260 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
2261 (TLS server is not affected if it doesn't ask for a client certificate)
2262 (found using Codenomicon Defensics).
2263 * Fix potential stack overflow while parsing crafted X.509 certificates
2264 (TLS server is not affected if it doesn't ask for a client certificate)
2265 found using Codenomicon Defensics).
2266 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
2267 (TLS server is not affected if it doesn't ask for a client certificate).
2268
2269Bugfix
2270 * Fix potential undefined behaviour in Camellia.
2271 * Fix memory leaks in PKCS#5 and PKCS#12.
2272 * Stack buffer overflow if ctr_drbg_update() is called with too large
2273 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
2274 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
2275 in 1.2.12).
2276 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
2277 Peter Vaskovic).
2278 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
2279 * ssl_get_verify_result() now works even if the handshake was aborted due
2280 to a failed verification (found by Fredrik Axelsson).
2281 * Skip writing and parsing signature_algorithm extension if none of the
2282 key exchanges enabled needs certificates. This fixes a possible interop
2283 issue with some servers when a zero-length extension was sent. (Reported
2284 by Peter Dettman.)
2285 * On a 0-length input, base64_encode() did not correctly set output length
2286 (found by Hendrik van den Boogaard).
2287
2288Changes
2289 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
2290 * Forbid repeated extensions in X.509 certificates.
2291 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
2292 length of an X.509 verification chain (default = 8).
Paul Bakkera6c5ea22014-10-24 16:26:29 +02002293= Version 1.2.12 released 2014-10-24
2294
2295Security
2296 * Remotely-triggerable memory leak when parsing some X.509 certificates
2297 (server is not affected if it doesn't ask for a client certificate).
2298 (Found using Codenomicon Defensics.)
2299
2300Bugfix
2301 * Fix potential bad read in parsing ServerHello (found by Adrien
2302 Vialletelle).
2303 * ssl_close_notify() could send more than one message in some circumstances
2304 with non-blocking I/O.
2305 * x509_crt_parse() did not increase total_failed on PEM error
2306 * Fix compiler warnings on iOS (found by Sander Niemeijer).
2307 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
2308 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
2309 * ssl_read() could return non-application data records on server while
2310 renegotation was pending, and on client when a HelloRequest was received.
2311 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
2312
2313Changes
2314 * X.509 certificates with more than one AttributeTypeAndValue per
2315 RelativeDistinguishedName are not accepted any more.
2316 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2317 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
2318 * Accept spaces at end of line or end of buffer in base64_decode().
2319
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02002320= Version 1.2.11 released 2014-07-11
2321Features
2322 * Entropy module now supports seed writing and reading
2323
2324Changes
2325 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
2326 * Improvements to the CMake build system, contributed by Julian Ospald.
2327 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2328 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
2329 * Improvements to tests/Makefile, contributed by Oden Eriksson.
2330 * Use UTC time to check certificate validity.
2331 * Reject certificates with times not in UTC, per RFC 5280.
2332 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2333 against unwanted compiler optimizations
2334
2335Security
2336 * Forbid change of server certificate during renegotiation to prevent
2337 "triple handshake" attack when authentication mode is optional (the
2338 attack was already impossible when authentication is required).
2339 * Check notBefore timestamp of certificates and CRLs from the future.
2340 * Forbid sequence number wrapping
2341 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2342 TrustInSoft)
2343 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2344 It was possible to crash the server (and client) using crafted messages
2345 when a GCM suite was chosen.
2346
2347Bugfix
2348 * Fixed X.509 hostname comparison (with non-regular characters)
2349 * SSL now gracefully handles missing RNG
2350 * crypt_and_hash app checks MAC before final decryption
2351 * Fixed x509_crt_parse_path() bug on Windows platforms
2352 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2353 TrustInSoft)
2354 * Fixed potential overflow in certificate size verification in
2355 ssl_write_certificate() (found by TrustInSoft)
2356 * Fix ASM format in bn_mul.h
2357 * Potential memory leak in bignum_selftest()
2358 * Replaced expired test certificate
2359 * ssl_mail_client now terminates lines with CRLF, instead of LF
2360 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
2361 * Fixed testing with out-of-source builds using cmake
2362 * Fixed version-major intolerance in server
2363 * Fixed CMake symlinking on out-of-source builds
2364 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2365 Alex Wilson.)
2366 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2367 out_ctr failed
2368 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2369 of one of them failed
2370 * x509_get_current_time() uses localtime_r() to prevent thread issues
2371 * Some example server programs were not sending the close_notify alert.
2372 * Potential memory leak in mpi_exp_mod() when error occurs during
2373 calculation of RR.
2374 * Improve interoperability by not writing extension length in ClientHello
2375 when no extensions are present (found by Matthew Page)
2376 * rsa_check_pubkey() now allows an E up to N
2377 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
2378 * mpi_fill_random() was creating numbers larger than requested on
2379 big-endian platform when size was not an integer number of limbs
2380 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
2381 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2382 size (found by TrustInSoft)
2383 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
2384 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2385 interpret semicolons as comment delimiters (found by Barry K. Nathan).
2386 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
2387 * Fix base64_decode() to return and check length correctly (in case of
2388 tight buffers)
2389
Paul Bakker3a2c0562013-10-07 16:22:05 +02002390= Version 1.2.10 released 2013-10-07
2391Changes
2392 * Changed RSA blinding to a slower but thread-safe version
2393
2394Bugfix
2395 * Fixed memory leak in RSA as a result of introduction of blinding
2396 * Fixed ssl_pkcs11_decrypt() prototype
2397 * Fixed MSVC project files
2398
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002399= Version 1.2.9 released 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002400Changes
2401 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
2402
2403Bugfix
2404 * Fixed potential memory leak when failing to resume a session
2405 * Fixed potential file descriptor leaks (found by Remi Gacogne)
2406 * Minor fixes
2407
2408Security
2409 * Fixed potential heap buffer overflow on large hostname setting
2410 * Fixed potential negative value misinterpretation in load_file()
2411 * RSA blinding on CRT operations to counter timing attacks
2412 (found by Cyril Arnaud and Pierre-Alain Fouque)
2413
Paul Bakkerde656232013-06-24 19:07:34 +02002414= Version 1.2.8 released 2013-06-19
2415Features
2416 * Parsing of PKCS#8 encrypted private key files
2417 * PKCS#12 PBE and derivation functions
2418 * Centralized module option values in config.h to allow user-defined
2419 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
2420
2421Changes
2422 * HAVEGE random generator disabled by default
2423 * Internally split up x509parse_key() into a (PEM) handler function
2424 and specific DER parser functions for the PKCS#1 and unencrypted
2425 PKCS#8 private key formats
2426 * Added mechanism to provide alternative implementations for all
2427 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
Darryl Green11999bb2018-03-13 15:22:58 +00002428 config.h)
Paul Bakkerde656232013-06-24 19:07:34 +02002429 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
2430 old PBKDF2 module
2431
2432Bugfix
2433 * Secure renegotiation extension should only be sent in case client
2434 supports secure renegotiation
2435 * Fixed offset for cert_type list in ssl_parse_certificate_request()
2436 * Fixed const correctness issues that have no impact on the ABI
2437 * x509parse_crt() now better handles PEM error situations
2438 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2439 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00002440 certificates
Paul Bakkerde656232013-06-24 19:07:34 +02002441 * x509parse_crtpath() is now reentrant and uses more portable stat()
2442 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
2443 * Fixed values for 2-key Triple DES in cipher layer
2444 * ssl_write_certificate_request() can handle empty ca_chain
2445
2446Security
2447 * A possible DoS during the SSL Handshake, due to faulty parsing of
2448 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2449
2450= Version 1.2.7 released 2013-04-13
2451Features
2452 * Ability to specify allowed ciphersuites based on the protocol version.
2453
2454Changes
2455 * Default Blowfish keysize is now 128-bits
2456 * Test suites made smaller to accommodate Raspberry Pi
2457
2458Bugfix
2459 * Fix for MPI assembly for ARM
2460 * GCM adapted to support sizes > 2^29
2461
Paul Bakkerc0463502013-02-14 11:19:38 +01002462= Version 1.2.6 released 2013-03-11
2463Bugfix
2464 * Fixed memory leak in ssl_free() and ssl_reset() for active session
2465 * Corrected GCM counter incrementation to use only 32-bits instead of
Paul Bakkere47b34b2013-02-27 14:48:00 +01002466 128-bits (found by Yawning Angel)
Paul Bakkere3e4a592013-02-28 10:20:53 +01002467 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakker37286a52013-03-06 16:55:11 +01002468 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01002469 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakkerd66f0702013-01-31 16:57:45 +01002470
Paul Bakkerb3869132013-02-28 17:21:01 +01002471Changes
2472 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
2473 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
2474 PKCS#1 v2.1 functions
Paul Bakkera43231c2013-02-28 17:33:49 +01002475 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
2476 or rsa_rsaes_oaep_decrypt()
Paul Bakker78a8c712013-03-06 17:01:52 +01002477 * Re-added handling for SSLv2 Client Hello when the define
2478 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkere81beda2013-03-06 17:40:46 +01002479 * The SSL session cache module (ssl_cache) now also retains peer_cert
2480 information (not the entire chain)
Paul Bakkerb3869132013-02-28 17:21:01 +01002481
Paul Bakkere47b34b2013-02-27 14:48:00 +01002482Security
2483 * Removed further timing differences during SSL message decryption in
2484 ssl_decrypt_buf()
Paul Bakker8804f692013-02-28 18:06:26 +01002485 * Removed timing differences due to bad padding from
2486 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2487 operations
Paul Bakkere47b34b2013-02-27 14:48:00 +01002488
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002489= Version 1.2.5 released 2013-02-02
2490Changes
2491 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakkerd66f0702013-01-31 16:57:45 +01002492 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01002493 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker40865c82013-01-31 17:13:13 +01002494 * Sending of security-relevant alert messages that do not break
2495 interoperability can be switched on/off with the flag
Paul Bakkera35aa542013-03-06 17:06:21 +01002496 POLARSSL_SSL_ALL_ALERT_MESSAGES
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002497
Paul Bakker45829992013-01-03 14:52:21 +01002498Security
2499 * Removed timing differences during SSL message decryption in
2500 ssl_decrypt_buf() due to badly formatted padding
2501
Paul Bakker14c56a32013-01-25 17:11:37 +01002502= Version 1.2.4 released 2013-01-25
Paul Bakker1961b702013-01-25 14:49:24 +01002503Changes
Paul Bakker68884e32013-01-07 18:20:04 +01002504 * More advanced SSL ciphersuite representation and moved to more dynamic
2505 SSL core
Paul Bakker1961b702013-01-25 14:49:24 +01002506 * Added ssl_handshake_step() to allow single stepping the handshake process
2507
Paul Bakker40628ba2013-01-03 10:50:31 +01002508Bugfix
2509 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakker21dca692013-01-03 11:41:08 +01002510 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker9c94cdd2013-01-22 13:45:33 +01002511 * Correctly handle CertificateRequest message in client for <= TLS 1.1
2512 without DN list
Paul Bakker40628ba2013-01-03 10:50:31 +01002513
Paul Bakkerfb1ba782012-11-26 16:28:25 +01002514= Version 1.2.3 released 2012-11-26
2515Bugfix
2516 * Server not always sending correct CertificateRequest message
2517
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002518= Version 1.2.2 released 2012-11-24
Paul Bakkere667c982012-11-20 13:50:22 +01002519Changes
2520 * Added p_hw_data to ssl_context for context specific hardware acceleration
2521 data
Hanno Becker01a0e072017-07-26 11:49:40 +01002522 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkere667c982012-11-20 13:50:22 +01002523
Paul Bakker7c90da92012-11-23 14:02:40 +01002524Bugfixes
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002525 * Fixed client authentication compatibility
2526 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker7c90da92012-11-23 14:02:40 +01002527
Paul Bakker14926332012-11-20 10:58:09 +01002528= Version 1.2.1 released 2012-11-20
Paul Bakker34d8dbc2012-11-14 12:11:38 +00002529Changes
2530 * Depth that the certificate verify callback receives is now numbered
2531 bottom-up (Peer cert depth is 0)
2532
Paul Bakker7a2538e2012-11-02 10:59:36 +00002533Bugfixes
2534 * Fixes for MSVC6
Paul Bakkerd9374b02012-11-02 11:02:58 +00002535 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakkerf02c5642012-11-13 10:25:21 +00002536 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2537 Pégourié-Gonnard)
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01002538 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2539 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00002540 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakker7a2538e2012-11-02 10:59:36 +00002541
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002542= Version 1.2.0 released 2012-10-31
Paul Bakkerfab5c822012-02-06 16:45:10 +00002543Features
2544 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
2545 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
2546 default!
Paul Bakkera8cd2392012-02-11 16:09:32 +00002547 * Added support for wildcard certificates
2548 * Added support for multi-domain certificates through the X509 Subject
2549 Alternative Name extension
Paul Bakkerbdb912d2012-02-13 23:11:30 +00002550 * Added preliminary ASN.1 buffer writing support
2551 * Added preliminary X509 Certificate Request writing support
2552 * Added key_app_writer example application
2553 * Added cert_req example application
Paul Bakker89e80c92012-03-20 13:50:09 +00002554 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker48916f92012-09-16 19:57:18 +00002555 * Added TLS 1.2 support (RFC 5246)
Paul Bakkerca4ab492012-04-18 14:23:57 +00002556 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker01cc3942012-05-08 08:36:15 +00002557 * Added commandline error code convertor (util/strerror)
Paul Bakker05ef8352012-05-08 09:17:57 +00002558 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002559 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002560 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker8d914582012-06-04 12:46:42 +00002561 * Added X509 CA Path support
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00002562 * Added Thumb assembly optimizations
Paul Bakker2770fbd2012-07-03 13:30:23 +00002563 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002564 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakkerf518b162012-08-23 13:03:18 +00002565 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker48916f92012-09-16 19:57:18 +00002566 * Added Secure Renegotiation (RFC 5746)
Paul Bakker29b64762012-09-25 09:36:44 +00002567 * Added predefined DHM groups from RFC 5114
Paul Bakker0a597072012-09-25 21:55:46 +00002568 * Added simple SSL session cache implementation
Paul Bakker5701cdc2012-09-27 21:49:42 +00002569 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1d29fb52012-09-28 13:28:45 +00002570 * Added option to add minimum accepted SSL/TLS protocol version
Paul Bakkerfab5c822012-02-06 16:45:10 +00002571
Paul Bakker1504af52012-02-11 16:17:43 +00002572Changes
2573 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker048d04e2012-02-12 17:31:04 +00002574 * AES code only check for Padlock once
Paul Bakker6b906e52012-05-08 12:01:43 +00002575 * Fixed const-correctness mpi_get_bit()
2576 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker186751d2012-05-08 13:16:14 +00002577 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker4d2c1242012-05-10 14:12:46 +00002578 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakker5b377842012-05-16 07:57:36 +00002579 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002580 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
2581 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkerec636f32012-09-09 19:17:02 +00002582 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker0a597072012-09-25 21:55:46 +00002583 * Revamped session resumption handling
Paul Bakkereb2c6582012-09-27 19:15:01 +00002584 * Generalized external private key implementation handling (like PKCS#11)
2585 in SSL/TLS
Paul Bakker915275b2012-09-28 07:10:55 +00002586 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker5c2364c2012-10-01 14:41:15 +00002587 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker645ce3a2012-10-31 12:32:41 +00002588 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker1504af52012-02-11 16:17:43 +00002589
Paul Bakker37824582012-03-22 14:10:22 +00002590Bugfix
Paul Bakker7beceb22012-03-22 14:19:49 +00002591 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2592 Hui Dong)
Paul Bakker430ffbe2012-05-01 08:14:20 +00002593 * Fixed potential heap corruption in x509_name allocation
Paul Bakker5b377842012-05-16 07:57:36 +00002594 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkerf6198c12012-05-16 08:02:29 +00002595 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2596 #52)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002597 * Handle encryption with private key and decryption with public key as per
Darryl Green11999bb2018-03-13 15:22:58 +00002598 RFC 2313
Paul Bakkercefb3962012-06-27 11:51:09 +00002599 * Handle empty certificate subject names
Paul Bakker535e97d2012-08-23 10:49:55 +00002600 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00002601 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker995a2152012-09-25 08:19:56 +00002602 with carry rollover (found by Ruslan Yushchenko)
Paul Bakkerb00ca422012-09-25 12:10:00 +00002603 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker4f024b72012-10-30 07:29:57 +00002604 * Fixed MPI assembly for SPARC64 platform
Paul Bakker37824582012-03-22 14:10:22 +00002605
Paul Bakker452d5322012-04-05 12:07:34 +00002606Security
Paul Bakker3c16db92012-07-05 13:58:08 +00002607 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2608 Vanderbeken)
Paul Bakker452d5322012-04-05 12:07:34 +00002609
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002610= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002611Bugfix
2612 * Fixed potential memory leak when failing to resume a session
2613 * Fixed potential file descriptor leaks
2614
2615Security
2616 * Potential buffer-overflow for ssl_read_record() (independently found by
2617 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
2618 * Potential negative value misinterpretation in load_file()
2619 * Potential heap buffer overflow on large hostname setting
2620
Paul Bakker248fff52013-06-24 19:08:50 +02002621= Version 1.1.7 released on 2013-06-19
2622Changes
2623 * HAVEGE random generator disabled by default
2624
2625Bugfix
2626 * x509parse_crt() now better handles PEM error situations
2627 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2628 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00002629 certificates
Paul Bakker248fff52013-06-24 19:08:50 +02002630 * Fixed values for 2-key Triple DES in cipher layer
2631 * ssl_write_certificate_request() can handle empty ca_chain
2632
2633Security
2634 * A possible DoS during the SSL Handshake, due to faulty parsing of
2635 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2636
2637= Version 1.1.6 released on 2013-03-11
2638Bugfix
2639 * Fixed net_bind() for specified IP addresses on little endian systems
2640
2641Changes
2642 * Allow enabling of dummy error_strerror() to support some use-cases
2643 * Debug messages about padding errors during SSL message decryption are
2644 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
2645
2646Security
2647 * Removed timing differences during SSL message decryption in
2648 ssl_decrypt_buf()
2649 * Removed timing differences due to bad padding from
2650 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2651 operations
2652
Paul Bakker9d2bb652013-01-25 16:07:49 +01002653= Version 1.1.5 released on 2013-01-16
2654Bugfix
2655 * Fixed MPI assembly for SPARC64 platform
2656 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
2657 * mpi_add_abs() now correctly handles adding short numbers to long numbers
2658 with carry rollover
2659 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
2660 * Prevent reading over buffer boundaries on X509 certificate parsing
2661 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2662 #52)
2663 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2664 Pégourié-Gonnard)
2665 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2666 Pégourié-Gonnard)
2667 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2668 * Memory leak when using RSA_PKCS_V21 operations fixed
2669 * Handle encryption with private key and decryption with public key as per
2670 RFC 2313
2671 * Fixes for MSVC6
2672
2673Security
2674 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2675 Vanderbeken)
2676
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002677= Version 1.1.4 released on 2012-05-31
2678Bugfix
2679 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2680 * Fixed potential heap corruption in x509_name allocation
2681 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2682
Paul Bakkerfad38932012-05-08 09:04:04 +00002683= Version 1.1.3 released on 2012-04-29
2684Bugfix
2685 * Fixed random MPI generation to not generate more size than requested.
2686
2687= Version 1.1.2 released on 2012-04-26
2688Bugfix
2689 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2690 Hui Dong)
2691
2692Security
2693 * Fixed potential memory corruption on miscrafted client messages (found by
2694 Frama-C team at CEA LIST)
2695 * Fixed generation of DHM parameters to correct length (found by Ruslan
2696 Yushchenko)
2697
Paul Bakker99955bf2012-01-23 09:31:41 +00002698= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002699Bugfix
2700 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2701 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002702 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002703 * Fixed multiple compiler warnings for VS6 and armcc
2704 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002705
Paul Bakker08a50882011-12-22 09:43:57 +00002706= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002707Features
2708 * Added ssl_session_reset() to allow better multi-connection pools of
2709 SSL contexts without needing to set all non-connection-specific
Darryl Green11999bb2018-03-13 15:22:58 +00002710 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002711 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2712 supported version to a server to help buggy server implementations.
Darryl Green11999bb2018-03-13 15:22:58 +00002713 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002714 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2715 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002716 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002717 * Added a generic entropy accumulator that provides support for adding
2718 custom entropy sources and added some generic and platform dependent
Darryl Green11999bb2018-03-13 15:22:58 +00002719 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002720
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002721Changes
2722 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002723 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2724 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002725 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002726 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002727 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002728 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2729 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002730 * Changed the defined key-length of DES ciphers in cipher.h to include the
2731 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002732 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002733 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002734 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2735 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002736 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2737 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002738 * Changed the used random function pointer to more flexible format. Renamed
2739 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002740 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002741 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002742 * Added permissive certificate parsing to x509parse_crt() and
2743 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002744 encountering a parse-error. Beware that the meaning of return values has
2745 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002746 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002747
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002748Bugfix
2749 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2750 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002751 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2752 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002753 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2754 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002755 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2756 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002757 * If certificate serial is longer than 32 octets, serial number is now
2758 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002759 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002760 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002761 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002762 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002763
Paul Bakker968bc982011-07-27 17:03:00 +00002764= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002765Features
2766 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002767 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002768
Paul Bakker42e59812011-06-09 15:55:41 +00002769Changes
2770 * The generic cipher and message digest layer now have normal error
2771 codes instead of integers
2772
Paul Bakker887bd502011-06-08 13:10:54 +00002773Bugfix
2774 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2775 #18)
2776
Paul Bakker828acb22011-05-27 09:25:42 +00002777= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002778Features
2779 * Added additional Cipher Block Modes to symmetric ciphers
2780 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002781 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002782 * Functions requiring File System functions can now be disabled
2783 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002784 * A error_strerror function() has been added to translate between
2785 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002786 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2787 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002788 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002789
Paul Bakker23986e52011-04-24 08:57:21 +00002790Changes
2791 * Major argument / variable rewrite. Introduced use of size_t
2792 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002793 better unsigned / signed use. Renamed internal bigint types
2794 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002795 * mpi_init() and mpi_free() now only accept a single MPI
2796 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002797 * The error codes have been remapped and combining error codes
2798 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002799 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002800 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2801 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002802 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2803 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2804 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2805 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002806 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2807 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002808 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002809
Paul Bakker3efa5752011-04-01 12:23:26 +00002810= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002811Features
2812 * Added support for PKCS#1 v2.1 encoding and thus support
2813 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002814 * Reading of Public Key files incorporated into default x509
2815 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002816 * Added mpi_fill_random() for centralized filling of big numbers
2817 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002818
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002819Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002820 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002821 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002822 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002823 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002824 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002825
2826Bugfix
2827 * Debug output of MPI's now the same independent of underlying
2828 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002829 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002830 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2831 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002832 * Fixed proper handling of RSASSA-PSS verification with variable
2833 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002834
Paul Bakker345a6fe2011-02-28 21:20:02 +00002835= Version 0.99-pre3 released on 2011-02-28
2836This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002837Features
2838 * Parsing PEM private keys encrypted with DES and AES
2839 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002840 * Added crl_app program to allow easy reading and
2841 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00002842
2843Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002844 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00002845 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01002846 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00002847
Paul Bakker400ff6f2011-02-20 10:40:16 +00002848Bugfixes
2849 * Corrected parsing of UTCTime dates before 1990 and
2850 after 1950
2851 * Support more exotic OID's when parsing certificates
Darryl Green11999bb2018-03-13 15:22:58 +00002852 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002853 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002854 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002855 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002856 * Do not bail out if no client certificate specified. Try
2857 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01002858 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002859
Paul Bakker345a6fe2011-02-28 21:20:02 +00002860Security fixes
2861 * Fixed a possible Man-in-the-Middle attack on the
2862 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01002863 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00002864
Paul Bakker9fc46592011-01-30 16:59:02 +00002865= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00002866Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00002867Note: Most of these features have been donated by Fox-IT
2868 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00002869 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00002870 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00002871 certificate fields, including Key Usage
2872 * Improved certificate verification and verification
2873 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00002874 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00002875 * Improvements to support integration in other
2876 applications:
2877 + Added generic message digest and cipher wrapper
2878 + Improved information about current capabilities,
2879 status, objects and configuration
2880 + Added verification callback on certificate chain
2881 verification to allow external blacklisting
Darryl Green11999bb2018-03-13 15:22:58 +00002882 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00002883 * Added support for PKCS#11 through the use of the
2884 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00002885
Paul Bakkerb6194992011-01-16 21:40:22 +00002886Changes
2887 * x509parse_time_expired() checks time in addition to
2888 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00002889 * The ciphers member of ssl_context and the cipher member
2890 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01002891 ciphersuite respectively. This clarifies the difference
2892 with the generic cipher layer and is better naming
2893 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00002894
Paul Bakker99ed6782011-01-05 14:48:42 +00002895= Version 0.14.0 released on 2010-08-16
2896Features
2897 * Added support for SSL_EDH_RSA_AES_128_SHA and
2898 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
2899 * Added compile-time and run-time version information
2900 * Expanded ssl_client2 arguments for more flexibility
2901 * Added support for TLS v1.1
2902
2903Changes
2904 * Made Makefile cleaner
2905 * Removed dependency on rand() in rsa_pkcs1_encrypt().
2906 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01002907 changed the prototype of rsa_pkcs1_encrypt(),
2908 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00002909 * Some SSL defines were renamed in order to avoid
2910 future confusion
2911
2912Bug fixes
2913 * Fixed CMake out of source build for tests (found by
2914 kkert)
2915 * rsa_check_private() now supports PKCS1v2 keys as well
2916 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
2917 generator
2918
2919= Version 0.13.1 released on 2010-03-24
2920Bug fixes
2921 * Fixed Makefile in library that was mistakenly merged
2922 * Added missing const string fixes
2923
2924= Version 0.13.0 released on 2010-03-21
2925Features
2926 * Added option parsing for host and port selection to
2927 ssl_client2
2928 * Added support for GeneralizedTime in X509 parsing
2929 * Added cert_app program to allow easy reading and
2930 printing of X509 certificates from file or SSL
2931 connection.
2932
2933Changes
2934 * Added const correctness for main code base
2935 * X509 signature algorithm determination is now
2936 in a function to allow easy future expansion
2937 * Changed symmetric cipher functions to
2938 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01002939 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00002940 * Added reset function for HMAC context as speed-up
2941 for specific use-cases
2942
2943Bug fixes
2944 * Fixed bug resulting in failure to send the last
2945 certificate in the chain in ssl_write_certificate() and
2946 ssl_write_certificate_request() (found by fatbob)
2947 * Added small fixes for compiler warnings on a Mac
2948 (found by Frank de Brabander)
2949 * Fixed algorithmic bug in mpi_is_prime() (found by
2950 Smbat Tonoyan)
2951
2952= Version 0.12.1 released on 2009-10-04
2953Changes
2954 * Coverage test definitions now support 'depends_on'
2955 tagging system.
2956 * Tests requiring specific hashing algorithms now honor
2957 the defines.
2958
2959Bug fixes
2960 * Changed typo in #ifdef in x509parse.c (found
2961 by Eduardo)
2962
2963= Version 0.12.0 released on 2009-07-28
2964Features
2965 * Added CMake makefiles as alternative to regular Makefiles.
2966 * Added preliminary Code Coverage tests for AES, ARC4,
2967 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
2968 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
2969 and X509parse.
2970
2971Changes
2972 * Error codes are not (necessarily) negative. Keep
2973 this is mind when checking for errors.
2974 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
2975 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
2976 * Changed interface for AES and Camellia setkey functions
2977 to indicate invalid key lengths.
2978
2979Bug fixes
2980 * Fixed include location of endian.h on FreeBSD (found by
2981 Gabriel)
2982 * Fixed include location of endian.h and name clash on
2983 Apples (found by Martin van Hensbergen)
2984 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
2985 required HMAC ipad and opad variables are not cleared.
2986 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01002987 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00002988 POLARSSL_HAVE_LONGLONG not defined (found by Giles
2989 Bathgate).
2990 * Fixed incorrect handling of negative strings in
2991 mpi_read_string() (found by code coverage tests).
2992 * Fixed segfault on handling empty rsa_context in
2993 rsa_check_pubkey() and rsa_check_privkey() (found by
2994 code coverage tests).
2995 * Fixed incorrect handling of one single negative input
2996 value in mpi_add_abs() (found by code coverage tests).
2997 * Fixed incorrect handling of negative first input
2998 value in mpi_sub_abs() (found by code coverage tests).
2999 * Fixed incorrect handling of negative first input
3000 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
3001 change also affects mpi_write_string() (found by code
3002 coverage tests).
3003 * Corrected is_prime() results for 0, 1 and 2 (found by
3004 code coverage tests).
3005 * Fixed Camellia and XTEA for 64-bit Windows systems.
3006
3007= Version 0.11.1 released on 2009-05-17
3008 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
3009 SHA-512 in rsa_pkcs1_sign()
3010
3011= Version 0.11.0 released on 2009-05-03
3012 * Fixed a bug in mpi_gcd() so that it also works when both
3013 input numbers are even and added testcases to check
3014 (found by Pierre Habouzit).
3015 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
3016 one way hash functions with the PKCS#1 v1.5 signing and
3017 verification.
3018 * Fixed minor bug regarding mpi_gcd located within the
3019 POLARSSL_GENPRIME block.
3020 * Fixed minor memory leak in x509parse_crt() and added better
3021 handling of 'full' certificate chains (found by Mathias
3022 Olsson).
3023 * Centralized file opening and reading for x509 files into
3024 load_file()
3025 * Made definition of net_htons() endian-clean for big endian
3026 systems (Found by Gernot).
3027 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01003028 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00003029 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
3030 responsible for crashes and unwanted behaviour.
3031 * Added support for Certificate Revocation List (CRL) parsing.
3032 * Added support for CRL revocation to x509parse_verify() and
3033 SSL/TLS code.
3034 * Fixed compatibility of XTEA and Camellia on a 64-bit system
3035 (found by Felix von Leitner).
3036
3037= Version 0.10.0 released on 2009-01-12
3038 * Migrated XySSL to PolarSSL
3039 * Added XTEA symmetric cipher
3040 * Added Camellia symmetric cipher
3041 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
3042 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
3043 * Fixed dangerous bug that can cause a heap overflow in
3044 rsa_pkcs1_decrypt (found by Christophe Devine)
3045
3046================================================================
3047XySSL ChangeLog
3048
3049= Version 0.9 released on 2008-03-16
3050
3051 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
3052 * Enabled support for large files by default in aescrypt2.c
3053 * Preliminary openssl wrapper contributed by David Barrett
3054 * Fixed a bug in ssl_write() that caused the same payload to
3055 be sent twice in non-blocking mode when send returns EAGAIN
3056 * Fixed ssl_parse_client_hello(): session id and challenge must
3057 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
3058 * Added user-defined callback debug function (Krystian Kolodziej)
3059 * Before freeing a certificate, properly zero out all cert. data
3060 * Fixed the "mode" parameter so that encryption/decryption are
3061 not swapped on PadLock; also fixed compilation on older versions
3062 of gcc (bug reported by David Barrett)
3063 * Correctly handle the case in padlock_xcryptcbc() when input or
3064 ouput data is non-aligned by falling back to the software
3065 implementation, as VIA Nehemiah cannot handle non-aligned buffers
3066 * Fixed a memory leak in x509parse_crt() which was reported by Greg
3067 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
3068 Matthew Page who reported several bugs
3069 * Fixed x509_get_ext() to accept some rare certificates which have
3070 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
3071 * Added support on the client side for the TLS "hostname" extension
3072 (patch contributed by David Patino)
3073 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
3074 string is passed as the CN (bug reported by spoofy)
3075 * Added an option to enable/disable the BN assembly code
3076 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
3077 * Disabled obsolete hash functions by default (MD2, MD4); updated
3078 selftest and benchmark to not test ciphers that have been disabled
3079 * Updated x509parse_cert_info() to correctly display byte 0 of the
3080 serial number, setup correct server port in the ssl client example
3081 * Fixed a critical denial-of-service with X.509 cert. verification:
3082 peer may cause xyssl to loop indefinitely by sending a certificate
3083 for which the RSA signature check fails (bug reported by Benoit)
3084 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
3085 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
3086 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
3087 * Modified ssl_parse_client_key_exchange() to protect against
3088 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
3089 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
3090 * Updated rsa_gen_key() so that ctx->N is always nbits in size
3091 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
3092 David Barrett and Dusan Semen
3093
3094= Version 0.8 released on 2007-10-20
3095
3096 * Modified the HMAC functions to handle keys larger
3097 than 64 bytes, thanks to Stephane Desneux and gary ng
3098 * Fixed ssl_read_record() to properly update the handshake
3099 message digests, which fixes IE6/IE7 client authentication
3100 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
3101 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
3102 * Added user-defined callbacks for handling I/O and sessions
3103 * Added lots of debugging output in the SSL/TLS functions
3104 * Added preliminary X.509 cert. writing by Pascal Vizeli
3105 * Added preliminary support for the VIA PadLock routines
3106 * Added AES-CFB mode of operation, contributed by chmike
3107 * Added an SSL/TLS stress testing program (ssl_test.c)
3108 * Updated the RSA PKCS#1 code to allow choosing between
3109 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
3110 * Updated ssl_read() to skip 0-length records from OpenSSL
3111 * Fixed the make install target to comply with *BSD make
3112 * Fixed a bug in mpi_read_binary() on 64-bit platforms
3113 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
3114 * Fixed a long standing memory leak in mpi_is_prime()
3115 * Replaced realloc with malloc in mpi_grow(), and set
3116 the sign of zero as positive in mpi_init() (reported
3117 by Jonathan M. McCune)
3118
3119= Version 0.7 released on 2007-07-07
3120
3121 * Added support for the MicroBlaze soft-core processor
3122 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
3123 connections from being established with non-blocking I/O
3124 * Fixed a couple bugs in the VS6 and UNIX Makefiles
3125 * Fixed the "PIC register ebx clobbered in asm" bug
3126 * Added HMAC starts/update/finish support functions
3127 * Added the SHA-224, SHA-384 and SHA-512 hash functions
3128 * Fixed the net_set_*block routines, thanks to Andreas
3129 * Added a few demonstration programs: md5sum, sha1sum,
3130 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
3131 * Added new bignum import and export helper functions
3132 * Rewrote README.txt in program/ssl/ca to better explain
3133 how to create a test PKI
3134
3135= Version 0.6 released on 2007-04-01
3136
3137 * Ciphers used in SSL/TLS can now be disabled at compile
3138 time, to reduce the memory footprint on embedded systems
3139 * Added multiply assembly code for the TriCore and modified
3140 havege_struct for this processor, thanks to David Patiño
3141 * Added multiply assembly code for 64-bit PowerPCs,
3142 thanks to Peking University and the OSU Open Source Lab
3143 * Added experimental support of Quantum Cryptography
3144 * Added support for autoconf, contributed by Arnaud Cornet
3145 * Fixed "long long" compilation issues on IA-64 and PPC64
3146 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
3147 was not being correctly defined on ARM and MIPS
3148
3149= Version 0.5 released on 2007-03-01
3150
3151 * Added multiply assembly code for SPARC and Alpha
3152 * Added (beta) support for non-blocking I/O operations
3153 * Implemented session resuming and client authentication
3154 * Fixed some portability issues on WinCE, MINIX 3, Plan9
3155 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
3156 * Improved the performance of the EDH key exchange
3157 * Fixed a bug that caused valid packets with a payload
3158 size of 16384 bytes to be rejected
3159
3160= Version 0.4 released on 2007-02-01
3161
3162 * Added support for Ephemeral Diffie-Hellman key exchange
3163 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
3164 * Various improvement to the modular exponentiation code
3165 * Rewrote the headers to generate the API docs with doxygen
3166 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
3167 generated) and in ssl_parse_client_hello (max. client
3168 version was not properly set), thanks to Didier Rebeix
3169 * Fixed another bug in ssl_parse_client_hello: clients with
3170 cipherlists larger than 96 bytes were incorrectly rejected
3171 * Fixed a couple memory leak in x509_read.c
3172
3173= Version 0.3 released on 2007-01-01
3174
3175 * Added server-side SSLv3 and TLSv1.0 support
3176 * Multiple fixes to enhance the compatibility with g++,
3177 thanks to Xosé Antón Otero Ferreira
3178 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01003179 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00003180 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
3181 * Updated timing.c for improved compatibility with i386
3182 and 486 processors, thanks to Arnaud Cornet
3183
3184= Version 0.2 released on 2006-12-01
3185
3186 * Updated timing.c to support ARM and MIPS arch
3187 * Updated the MPI code to support 8086 on MSVC 1.5
3188 * Added the copyright notice at the top of havege.h
3189 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
3190 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
3191 * Fixed a bug reported by Torsten Lauter in ssl_read_record
3192 * Fixed a bug in rsa_check_privkey that would wrongly cause
3193 valid RSA keys to be dismissed (thanks to oldwolf)
3194 * Fixed a bug in mpi_is_prime that caused some primes to fail
3195 the Miller-Rabin primality test
3196
3197 I'd also like to thank Younès Hafri for the CRUX linux port,
3198 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
3199 who maintains the Debian package :-)
3200
3201= Version 0.1 released on 2006-11-01