blob: c92e42953a90381c53bee4c4e49f730dbc071d23 [file] [log] [blame]
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001mbed TLS ChangeLog (Sorted per branch, date)
Paul Bakker99ed6782011-01-05 14:48:42 +00002
Jaeden Amerob0328ba2019-10-02 17:57:37 +01003= mbed TLS 2.16.x branch released xxxx-xx-xx
Hanno Becker9d8e37f2018-11-15 17:51:24 +00004
Jaeden Ameroda593062019-10-02 17:59:28 +01005Bugfix
6 * Remove redundant line for getting the bitlen of a bignum, since the variable
7 holding the returned value is overwritten a line after.
8 Found by irwir in #2377.
9
Hanno Becker9d8e37f2018-11-15 17:51:24 +000010Changes
11 * Add unit tests for AES-GCM when called through mbedtls_cipher_auth_xxx()
12 from the cipher abstraction layer. Fixes #2198.
Gilles Peskine67353632019-09-30 15:25:18 +020013 * Clarify how the interface of the CTR_DRBG and HMAC modules relates to
14 NIST SP 800-90A. In particular CTR_DRBG requires an explicit nonce
15 to achieve a 256-bit strength if MBEDTLS_ENTROPY_FORCE_SHA256 is set.
Hanno Becker9d8e37f2018-11-15 17:51:24 +000016
Jaeden Amerofcb87112019-09-06 13:27:00 +010017= mbed TLS 2.16.3 branch released 2019-09-06
Simon Butcher104fe532018-12-28 12:00:35 +000018
k-stachowiak50be3582019-07-10 11:43:23 +020019Security
20 * Fix a missing error detection in ECJPAKE. This could have caused a
21 predictable shared secret if a hardware accelerator failed and the other
22 side of the key exchange had a similar bug.
Janos Follath5f721192019-01-16 14:41:00 +000023 * The deterministic ECDSA calculation reused the scheme's HMAC-DRBG to
24 implement blinding. Because of this for the same key and message the same
25 blinding value was generated. This reduced the effectiveness of the
26 countermeasure and leaked information about the private key through side
27 channels. Reported by Jack Lloyd.
Gilles Peskine52157832018-08-11 00:51:04 +020028 * When writing a private EC key, use a constant size for the private
29 value, as specified in RFC 5915. Previously, the value was written
30 as an ASN.1 INTEGER, which caused the size of the key to leak
31 about 1 bit of information on average and could cause the value to be
32 1 byte too large for the output buffer.
Janos Follath5f721192019-01-16 14:41:00 +000033
Gilles Peskine33f66ba2019-08-14 16:37:16 +020034API Changes
35 * The new function mbedtls_ecdsa_sign_det_ext() is similar to
36 mbedtls_ecdsa_sign_det() but allows passing an external RNG for the
37 purpose of blinding.
k-stachowiak50be3582019-07-10 11:43:23 +020038
Simon Butcher104fe532018-12-28 12:00:35 +000039Bugfix
Simon Butcherf35bb5a2019-04-18 15:57:30 +010040 * Fix to allow building test suites with any warning that detects unused
41 functions. Fixes #1628.
Jaeden Amero7f132cc2019-06-21 13:27:41 +010042 * Fix typo in net_would_block(). Fixes #528 reported by github-monoculture.
43 * Remove redundant include file in timing.c. Fixes #2640 reported by irwir.
44 * Fix Visual Studio Release x64 build configuration by inheriting
45 PlatformToolset from the project configuration. Fixes #1430 reported by
46 irwir.
47 * Enable Suite B with subset of ECP curves. Make sure the code compiles even
48 if some curves are not defined. Fixes #1591 reported by dbedev.
Jaeden Ameroc041b4f2019-07-05 15:43:18 +010049 * Fix misuse of signed arithmetic in the HAVEGE module. #2598
Gilles Peskine77a29162019-08-03 14:08:46 +020050 * Update test certificates that were about to expire. Reported by
51 Bernhard M. Wiedemann in #2357.
Gilles Peskine9ff53ff2019-08-05 11:34:11 +020052 * Fix the build on ARMv5TE in ARM mode to not use assembly instructions
53 that are only available in Thumb mode. Fix contributed by Aurelien Jarno
54 in #2169.
Gilles Peskinef9c94b02019-07-19 17:24:55 +020055 * Fix undefined memset(NULL) call in test_suite_nist_kw.
Gilles Peskine5bdae192019-07-19 17:26:55 +020056 * Make NV seed test support MBEDTLS_ENTROPY_FORCE_SHA256.
Hanno Beckerda2fb422019-07-19 12:52:08 +010057 * Fix propagation of restart contexts in restartable EC operations.
58 This could previously lead to segmentation faults in builds using an
59 address-sanitizer and enabling but not using MBEDTLS_ECP_RESTARTABLE.
Jaeden Ameroadb4fa52019-09-03 16:32:54 +010060 * Fix memory leak in in mpi_miller_rabin(). Contributed by
61 Jens Wiklander <jens.wiklander@linaro.org> in #2363
Andy Gross3fc6f9d2019-01-30 10:25:53 -060062 * Improve code clarity in x509_crt module, removing false-positive
63 uninitialized variable warnings on some recent toolchains (GCC8, etc).
64 Discovered and fixed by Andy Gross (Linaro), #2392.
Vikas Katariyacc9135f2019-08-15 16:32:21 +010065 * Zero length buffer check for undefined behavior in
66 mbedtls_platform_zeroize(). Fixes ARMmbed/mbed-crypto#49.
Jaeden Ameroc3bfb202019-09-05 17:37:13 +010067 * Fix bug in endianness conversion in bignum module. This lead to
68 functionally incorrect code on bigendian systems which don't have
69 __BYTE_ORDER__ defined. Reported by Brendan Shanks. Fixes #2622.
Simon Butcher104fe532018-12-28 12:00:35 +000070
Jaeden Amero5ecbd142019-06-21 13:24:18 +010071Changes
72 * Make it easier to define MBEDTLS_PARAM_FAILED as assert (which config.h
73 suggests). #2671
Jaeden Amero7f132cc2019-06-21 13:27:41 +010074 * Make `make clean` clean all programs always. Fixes #1862.
Jaeden Amero5ecbd142019-06-21 13:24:18 +010075
Jaeden Ameroff36cda2019-06-11 17:27:32 +010076= mbed TLS 2.16.2 branch released 2019-06-11
Darryl Green955db7e2019-01-07 13:05:37 +000077
Gilles Peskine661610c2018-11-07 22:39:16 +010078Security
79 * Make mbedtls_ecdh_get_params return an error if the second key
80 belongs to a different group from the first. Before, if an application
81 passed keys that belonged to different group, the first key's data was
82 interpreted according to the second group, which could lead to either
83 an error or a meaningless output from mbedtls_ecdh_get_params. In the
84 latter case, this could expose at most 5 bits of the private key.
85
Jaeden Amerof2357f82019-03-26 15:27:56 +000086Bugfix
87 * Server's RSA certificate in certs.c was SHA-1 signed. In the default
88 mbedTLS configuration only SHA-2 signed certificates are accepted.
89 This certificate is used in the demo server programs, which lead the
90 client programs to fail at the peer's certificate verification
91 due to an unacceptable hash signature. The certificate has been
92 updated to one that is SHA-256 signed. Fix contributed by
93 Illya Gerasymchuk.
94 * Fix private key DER output in the key_app_writer example. File contents
95 were shifted by one byte, creating an invalid ASN.1 tag. Fixed by
96 Christian Walther in #2239.
Jaeden Amero749c9442019-04-05 13:48:45 +010097 * Fix potential memory leak in X.509 self test. Found and fixed by
98 Junhwan Park, #2106.
Jaeden Amero9bfcebf2019-04-05 13:53:22 +010099 * Reduce stack usage of hkdf tests. Fixes #2195.
Jaeden Amero77027352019-04-05 14:10:02 +0100100 * Fix 1-byte buffer overflow in mbedtls_mpi_write_string() when
Jaeden Ameroda6a3c42019-04-08 11:23:50 +0100101 used with negative inputs. Found by Guido Vranken in #2404. Credit to
102 OSS-Fuzz.
Jaeden Amerof41fa482019-04-05 14:17:47 +0100103 * Fix bugs in the AEAD test suite which would be exposed by ciphers which
104 either used both encrypt and decrypt key schedules, or which perform padding.
105 GCM and CCM were not affected. Fixed by Jack Lloyd.
Jaeden Amero0ea24a92019-04-05 14:26:20 +0100106 * Fix incorrect default port number in ssl_mail_client example's usage.
107 Found and fixed by irwir. #2337
Hanno Beckeree600342018-10-15 12:23:02 +0100108 * Add missing parentheses around parameters in the definition of the
109 public macro MBEDTLS_X509_ID_FLAG. This could lead to invalid evaluation
110 in case operators binding less strongly than subtraction were used
111 for the parameter.
Jaeden Amero9cfc9ce2019-04-24 11:21:35 +0100112 * Add a check for MBEDTLS_X509_CRL_PARSE_C in ssl_server2, guarding the crl
113 sni entry parameter. Reported by inestlerode in #560.
Hanno Becker820c0212018-12-05 16:52:37 +0000114 * Add DER-encoded test CRTs to library/certs.c, allowing
115 the example programs ssl_server2 and ssl_client2 to be run
116 if MBEDTLS_FS_IO and MBEDTLS_PEM_PARSE_C are unset. Fixes #2254.
Hanno Becker5549f462019-06-04 10:27:43 +0100117 * Fix missing bounds checks in X.509 parsing functions that could
118 lead to successful parsing of ill-formed X.509 CRTs. Fixes #2437.
119 * Fix multiple X.509 functions previously returning ASN.1 low-level error
120 codes to always wrap these codes into X.509 high level error codes before
121 returning. Fixes #2431.
Jaeden Amerof2357f82019-03-26 15:27:56 +0000122
123Changes
124 * Return from various debugging routines immediately if the
125 provided SSL context is unset.
126 * Remove dead code from bignum.c in the default configuration.
127 Found by Coverity, reported and fixed by Peter Kolbus (Garmin). Fixes #2309.
128 * Add test for minimal value of MBEDTLS_MPI_WINDOW_SIZE to all.sh.
129 Contributed by Peter Kolbus (Garmin).
k-stachowiakb5f9a192019-04-29 13:00:05 +0200130 * Change wording in the `mbedtls_ssl_conf_max_frag_len()`'s documentation to
131 improve clarity. Fixes #2258.
Hanno Becker8d900152019-05-30 11:18:42 +0100132 * Replace multiple uses of MD2 by SHA-256 in X.509 test suite. Fixes #821.
Jaeden Amerof2357f82019-03-26 15:27:56 +0000133
Jaeden Amero9f4f8ee2019-03-19 16:16:12 +0000134= mbed TLS 2.16.1 branch released 2019-03-19
Darryl Green955db7e2019-01-07 13:05:37 +0000135
Andres Amaya Garcia5d8aade2018-10-30 18:21:41 +0000136Features
137 * Add MBEDTLS_REMOVE_3DES_CIPHERSUITES to allow removing 3DES ciphersuites
Andres Amaya Garcia6882ec12018-11-26 20:57:49 +0000138 from the default list (enabled by default). See
139 https://sweet32.info/SWEET32_CCS16.pdf.
Andres Amaya Garcia5d8aade2018-10-30 18:21:41 +0000140
Darryl Green955db7e2019-01-07 13:05:37 +0000141Bugfix
142 * Fix a compilation issue with mbedtls_ecp_restart_ctx not being defined
143 when MBEDTLS_ECP_ALT is defined. Reported by jwhui. Fixes #2242.
Ron Eldor822b8342018-11-25 10:38:34 +0200144 * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined.
145 Raised as a comment in #1996.
Hanno Becker8116ef72018-10-25 12:42:08 +0100146 * Reduce the stack consumption of mbedtls_mpi_fill_random() which could
147 previously lead to a stack overflow on constrained targets.
Simon Butcher874b6042019-01-08 16:34:19 +0000148 * Add `MBEDTLS_SELF_TEST` for the mbedtls_self_test functions
149 in the header files, which missed the precompilation check. #971
Jeffrey Martin60269ee2019-01-15 09:03:24 -0600150 * Fix clobber list in MIPS assembly for large integer multiplication.
151 Previously, this could lead to functionally incorrect assembly being
152 produced by some optimizing compilers, showing up as failures in
153 e.g. RSA or ECC signature operations. Reported in #1722, fix suggested
Jeffrey Martin55a23e42019-01-16 09:27:11 -0600154 by Aurelien Jarno and submitted by Jeffrey Martin.
Hanno Becker47da6df2019-01-10 09:22:16 +0000155 * Fix signed-to-unsigned integer conversion warning
156 in X.509 module. Fixes #2212.
Ron Eldor8a6917d2018-11-27 10:33:38 +0200157 * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
158 Fixes #2190.
Masashi Honmafbda6122018-12-28 05:40:17 +0900159 * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326.
amisare5c0b5b52019-01-04 08:15:46 +0800160 * Remove the mbedtls namespacing from the header file, to fix a "file not found"
161 build error. Fixed by Haijun Gu #2319.
Ron Eldor5351afa2018-12-17 10:12:55 +0200162 * Fix returning the value 1 when mbedtls_ecdsa_genkey failed.
Peter Kolbus494ac012019-02-03 08:41:41 -0600163 * Fix false failure in all.sh when backup files exist in include/mbedtls
164 (e.g. config.h.bak). Fixed by Peter Kolbus (Garmin) #2407.
Andres Amaya Garciab5eb21a2018-09-26 10:59:20 +0100165 * Ensure that unused bits are zero when writing ASN.1 bitstrings when using
166 mbedtls_asn1_write_bitstring().
167 * Fix issue when writing the named bitstrings in KeyUsage and NsCertType
168 extensions in CSRs and CRTs that caused these bitstrings to not be encoded
169 correctly as trailing zeroes were not accounted for as unused bits in the
170 leading content octet. Fixes #1610.
Darryl Green955db7e2019-01-07 13:05:37 +0000171
Jaeden Amerof0f8c092019-01-30 16:09:08 +0000172Changes
173 * Include configuration file in all header files that use configuration,
174 instead of relying on other header files that they include.
175 Inserted as an enhancement for #1371
Jaeden Amero9fc7af02019-01-30 16:17:22 +0000176 * Add support for alternative CSR headers, as used by Microsoft and defined
177 in RFC 7468. Found by Michael Ernst. Fixes #767.
Andres Amaya Garciad4d55962018-10-16 22:18:53 +0100178 * Fix configuration queries in ssl-opt.h. #2030
179 * Ensure that ssl-opt.h can be run in OS X. #2029
k-stachowiak73a8a0f2019-02-05 10:04:54 +0100180 * Reduce the complexity of the timing tests. They were assuming more than the
181 underlying OS actually guarantees.
k-stachowiakb4595d22019-02-19 12:41:30 +0100182 * Re-enable certain interoperability tests in ssl-opt.sh which had previously
183 been disabled for lack of a sufficiently recent version of GnuTLS on the CI.
Andres Amaya Garcia03afdc02019-02-19 20:14:00 +0000184 * Ciphersuites based on 3DES now have the lowest priority by default when
185 they are enabled.
Jaeden Amerof0f8c092019-01-30 16:09:08 +0000186
Simon Butcher6c164e72018-12-21 10:51:51 +0000187= mbed TLS 2.16.0 branch released 2018-12-21
Gilles Peskineddffa062018-10-03 13:40:16 +0200188
Manuel Pégourié-Gonnard8a46c222018-12-11 10:46:41 +0100189Features
Manuel Pégourié-Gonnard97940982018-12-17 13:13:50 +0100190 * Add a new config.h option of MBEDTLS_CHECK_PARAMS that enables validation
191 of parameters in the API. This allows detection of obvious misuses of the
192 API, such as passing NULL pointers. The API of existing functions hasn't
193 changed, but requirements on parameters have been made more explicit in
194 the documentation. See the corresponding API documentation for each
195 function to see for which parameter values it is defined. This feature is
196 disabled by default. See its API documentation in config.h for additional
197 steps you have to take when enabling it.
Gilles Peskine5da05052018-09-11 18:59:55 +0200198
Manuel Pégourié-Gonnard12dce612018-12-13 09:48:40 +0100199API Changes
200 * The following functions in the random generator modules have been
201 deprecated and replaced as shown below. The new functions change
202 the return type from void to int to allow returning error codes when
203 using MBEDTLS_<MODULE>_ALT for the underlying AES or message digest
204 primitive. Fixes #1798.
205 mbedtls_ctr_drbg_update() -> mbedtls_ctr_drbg_update_ret()
206 mbedtls_hmac_drbg_update() -> mbedtls_hmac_drbg_update_ret()
207 * Extend ECDH interface to enable alternative implementations.
Simon Butchere0460532018-12-20 16:17:02 +0000208 * Deprecate error codes of the form MBEDTLS_ERR_xxx_INVALID_KEY_LENGTH for
209 ARIA, CAMELLIA and Blowfish. These error codes will be replaced by
210 the more generic per-module error codes MBEDTLS_ERR_xxx_BAD_INPUT_DATA.
211 * Additional parameter validation checks have been added for the following
212 modules - AES, ARIA, Blowfish, CAMELLIA, CCM, GCM, DHM, ECP, ECDSA, ECDH,
213 ECJPAKE, SHA, Chacha20 and Poly1305, cipher, pk, RSA, and MPI.
214 Where modules have had parameter validation added, existing parameter
215 checks may have changed. Some modules, such as Chacha20 had existing
216 parameter validation whereas other modules had little. This has now been
217 changed so that the same level of validation is present in all modules, and
218 that it is now optional with the MBEDTLS_CHECK_PARAMS flag which by default
219 is off. That means that checks which were previously present by default
220 will no longer be.
Manuel Pégourié-Gonnard12dce612018-12-13 09:48:40 +0100221
Gilles Peskine5da05052018-09-11 18:59:55 +0200222New deprecations
223 * Deprecate mbedtls_ctr_drbg_update and mbedtls_hmac_drbg_update
224 in favor of functions that can return an error code.
Gilles Peskineddffa062018-10-03 13:40:16 +0200225
Simon Butcherb3633822018-07-30 22:10:48 +0100226Bugfix
Simon Butcherdf0500d2018-09-30 12:27:26 +0100227 * Fix for Clang, which was reporting a warning for the bignum.c inline
228 assembly for AMD64 targets creating string literals greater than those
229 permitted by the ISO C99 standard. Found by Aaron Jones. Fixes #482.
Hanno Becker5e0924c2018-10-18 12:11:54 +0100230 * Fix runtime error in `mbedtls_platform_entropy_poll()` when run
231 through qemu user emulation. Reported and fix suggested by randombit
232 in #1212. Fixes #1212.
Hanno Beckera7d2fa72018-10-24 13:41:43 +0100233 * Fix an unsafe bounds check when restoring an SSL session from a ticket.
234 This could lead to a buffer overflow, but only in case ticket authentication
235 was broken. Reported and fix suggested by Guido Vranken in #659.
Jaeden Amero9055a7d2018-12-06 16:09:58 +0000236 * Add explicit integer to enumeration type casts to example program
237 programs/pkey/gen_key which previously led to compilation failure
238 on some toolchains. Reported by phoenixmcallister. Fixes #2170.
Janos Follath855def12018-12-07 10:04:17 +0000239 * Fix double initialization of ECC hardware that made some accelerators
240 hang.
Simon Butcher6df8c532018-12-20 12:34:44 +0000241 * Clarify documentation of mbedtls_ssl_set_own_cert() regarding the absence
242 of check for certificate/key matching. Reported by Attila Molnar, #507.
Simon Butcherc86993e2018-09-27 09:48:54 +0100243
Simon Butchere0460532018-12-20 16:17:02 +0000244= mbed TLS 2.14.1 branch released 2018-11-30
245
246Security
247 * Fix timing variations and memory access variations in RSA PKCS#1 v1.5
248 decryption that could lead to a Bleichenbacher-style padding oracle
249 attack. In TLS, this affects servers that accept ciphersuites based on
250 RSA decryption (i.e. ciphersuites whose name contains RSA but not
251 (EC)DH(E)). Discovered by Eyal Ronen (Weizmann Institute), Robert Gillham
252 (University of Adelaide), Daniel Genkin (University of Michigan),
253 Adi Shamir (Weizmann Institute), David Wong (NCC Group), and Yuval Yarom
254 (University of Adelaide, Data61). The attack is described in more detail
255 in the paper available here: http://cat.eyalro.net/cat.pdf CVE-2018-19608
256 * In mbedtls_mpi_write_binary(), don't leak the exact size of the number
257 via branching and memory access patterns. An attacker who could submit
258 a plaintext for RSA PKCS#1 v1.5 decryption but only observe the timing
259 of the decryption and not its result could nonetheless decrypt RSA
260 plaintexts and forge RSA signatures. Other asymmetric algorithms may
261 have been similarly vulnerable. Reported by Eyal Ronen, Robert Gillham,
262 Daniel Genkin, Adi Shamir, David Wong and Yuval Yarom.
263 * Wipe sensitive buffers on the stack in the CTR_DRBG and HMAC_DRBG
264 modules.
265
266API Changes
267 * The new functions mbedtls_ctr_drbg_update_ret() and
268 mbedtls_hmac_drbg_update_ret() are similar to mbedtls_ctr_drbg_update()
269 and mbedtls_hmac_drbg_update() respectively, but the new functions
270 report errors whereas the old functions return void. We recommend that
271 applications use the new functions.
272
Simon Butcherc1b98922018-11-19 18:31:40 +0000273= mbed TLS 2.14.0 branch released 2018-11-19
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200274
Hanno Beckerd3445da2018-11-02 09:36:45 +0000275Security
Simon Butcher681edee2018-11-07 16:25:38 +0000276 * Fix overly strict DN comparison when looking for CRLs belonging to a
Simon Butcherb35e59d2018-11-19 15:49:26 +0000277 particular CA. This previously led to ignoring CRLs when the CRL's issuer
Simon Butcher681edee2018-11-07 16:25:38 +0000278 name and the CA's subject name differed in their string encoding (e.g.,
279 one using PrintableString and the other UTF8String) or in the choice of
280 upper and lower case. Reported by Henrik Andersson of Bosch GmbH in issue
281 #1784.
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100282 * Fix a flawed bounds check in server PSK hint parsing. In case the
Simon Butcherb35e59d2018-11-19 15:49:26 +0000283 incoming message buffer was placed within the first 64KiB of address
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100284 space and a PSK-(EC)DHE ciphersuite was used, this allowed an attacker
Simon Butcherb35e59d2018-11-19 15:49:26 +0000285 to trigger a memory access up to 64KiB beyond the incoming message buffer,
286 potentially leading to an application crash or information disclosure.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100287 * Fix mbedtls_mpi_is_prime() to use more rounds of probabilistic testing. The
288 previous settings for the number of rounds made it practical for an
289 adversary to construct non-primes that would be erroneously accepted as
290 primes with high probability. This does not have an impact on the
Simon Butcher681edee2018-11-07 16:25:38 +0000291 security of TLS, but can matter in other contexts with numbers chosen
292 potentially by an adversary that should be prime and can be validated.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100293 For example, the number of rounds was enough to securely generate RSA key
294 pairs or Diffie-Hellman parameters, but was insufficient to validate
295 Diffie-Hellman parameters properly.
296 See "Prime and Prejudice" by by Martin R. Albrecht and Jake Massimo and
297 Kenneth G. Paterson and Juraj Somorovsky.
Hanno Beckerd3445da2018-11-02 09:36:45 +0000298
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200299Features
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200300 * Add support for temporarily suspending expensive ECC computations after
Simon Butcherb35e59d2018-11-19 15:49:26 +0000301 some configurable amount of operations. This is intended to be used in
302 constrained, single-threaded systems where ECC is time consuming and can
303 block other operations until they complete. This is disabled by default,
304 but can be enabled by MBEDTLS_ECP_RESTARTABLE at compile time and
305 configured by mbedtls_ecp_set_max_ops() at runtime. It applies to the new
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200306 xxx_restartable functions in ECP, ECDSA, PK and X.509 (CRL not supported
307 yet), and to existing functions in ECDH and SSL (currently only
308 implemented client-side, for ECDHE-ECDSA ciphersuites in TLS 1.2,
309 including client authentication).
Simon Butcher4a865ef2018-10-28 18:00:51 +0000310 * Add support for Arm CPU DSP extensions to accelerate asymmetric key
311 operations. On CPUs where the extensions are available, they can accelerate
312 MPI multiplications used in ECC and RSA cryptography. Contributed by
313 Aurelien Jarno.
Simon Butcherb35e59d2018-11-19 15:49:26 +0000314 * Extend RSASSA-PSS signature to allow a smaller salt size. Previously, PSS
315 signature always used a salt with the same length as the hash, and returned
316 an error if this was not possible. Now the salt size may be up to two bytes
317 shorter. This allows the library to support all hash and signature sizes
318 that comply with FIPS 186-4, including SHA-512 with a 1024-bit key.
Simon Butcher06d80cf2018-11-06 23:46:04 +0000319 * Add support for 128-bit keys in CTR_DRBG. Note that using keys shorter
320 than 256 bits limits the security of generated material to 128 bits.
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +0200321
Simon Butchere51d4b32018-11-09 19:57:53 +0000322API Changes
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000323 * Add a common error code of `MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED` for
324 a feature that is not supported by underlying alternative
325 implementations implementing cryptographic primitives. This is useful for
326 hardware accelerators that don't implement all options or features.
Simon Butchere51d4b32018-11-09 19:57:53 +0000327
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300328New deprecations
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000329 * All module specific errors following the form
330 MBEDTLS_ERR_XXX_FEATURE_UNAVAILABLE that indicate a feature is not
331 supported are deprecated and are now replaced by the new equivalent
332 platform error.
Simon Butcher681edee2018-11-07 16:25:38 +0000333 * All module specific generic hardware acceleration errors following the
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000334 form MBEDTLS_ERR_XXX_HW_ACCEL_FAILED that are deprecated and are replaced
335 by the equivalent plaform error.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100336 * Deprecate the function mbedtls_mpi_is_prime() in favor of
337 mbedtls_mpi_is_prime_ext() which allows specifying the number of
338 Miller-Rabin rounds.
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300339
Simon Butcherb3633822018-07-30 22:10:48 +0100340Bugfix
Simon Butcher2b5be1e2018-10-30 15:55:10 +0000341 * Fix wrong order of freeing in programs/ssl/ssl_server2 example
342 application leading to a memory leak in case both
343 MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set.
344 Fixes #2069.
Simon Butcherc86993e2018-09-27 09:48:54 +0100345 * Fix a bug in the update function for SSL ticket keys which previously
346 invalidated keys of a lifetime of less than a 1s. Fixes #1968.
347 * Fix failure in hmac_drbg in the benchmark sample application, when
348 MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
Hanno Beckerf24c3362018-10-17 14:53:05 +0100349 * Fix a bug in the record decryption routine ssl_decrypt_buf()
350 which lead to accepting properly authenticated but improperly
351 padded records in case of CBC ciphersuites using Encrypt-then-MAC.
Hanno Becker617a3212018-10-05 09:51:36 +0100352 * Fix memory leak and freeing without initialization in the example
353 program programs/x509/cert_write. Fixes #1422.
Simon Butcher681edee2018-11-07 16:25:38 +0000354 * Ignore IV in mbedtls_cipher_set_iv() when the cipher mode is
355 MBEDTLS_MODE_ECB. Found by ezdevelop. Fixes #1091.
Hanno Becker7e1f3be2018-10-15 13:20:28 +0100356 * Zeroize memory used for buffering or reassembling handshake messages
357 after use.
358 * Use `mbedtls_platform_zeroize()` instead of `memset()` for zeroization
359 of sensitive data in the example programs aescrypt2 and crypt_and_hash.
Hanno Beckerf143a782018-11-06 17:43:16 +0000360 * Change the default string format used for various X.509 DN attributes to
361 UTF8String. Previously, the use of the PrintableString format led to
362 wildcards and non-ASCII characters being unusable in some DN attributes.
Simon Butcher681edee2018-11-07 16:25:38 +0000363 Reported by raprepo in #1860 and by kevinpt in #468. Fix contributed by
364 Thomas-Dee.
Hanno Beckere4f965d2018-10-11 10:54:45 +0100365 * Fix compilation failure for configurations which use compile time
366 replacements of standard calloc/free functions through the macros
367 MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO.
368 Reported by ole-de and ddhome2006. Fixes #882, #1642 and #1706.
Simon Butcherc86993e2018-09-27 09:48:54 +0100369
370Changes
Simon Butcherc0514bf2018-09-26 18:07:18 +0100371 * Removed support for Yotta as a build tool.
Simon Butcherc86993e2018-09-27 09:48:54 +0100372 * Add tests for session resumption in DTLS.
Gilles Peskine604ccc62018-07-10 15:55:52 +0200373 * Close a test gap in (D)TLS between the client side and the server side:
374 test the handling of large packets and small packets on the client side
375 in the same way as on the server side.
Simon Butcherddc9e262018-10-27 18:27:41 +0100376 * Change the dtls_client and dtls_server samples to work by default over
377 IPv6 and optionally by a build option over IPv4.
Simon Butcher404aa652018-10-01 14:44:22 +0100378 * Change the use of Windows threading to use Microsoft Visual C++ runtime
379 calls, rather than Win32 API calls directly. This is necessary to avoid
380 conflict with C runtime usage. Found and fixed by irwir.
Simon Butcher681edee2018-11-07 16:25:38 +0000381 * Remember the string format of X.509 DN attributes when replicating
382 X.509 DNs. Previously, DN attributes were always written in their default
383 string format (mostly PrintableString), which could lead to CRTs being
384 created which used PrintableStrings in the issuer field even though the
385 signing CA used UTF8Strings in its subject field; while X.509 compliant,
386 such CRTs were rejected in some applications, e.g. some versions of
387 Firefox, curl and GnuTLS. Reported in #1033 by Moschn. Fix contributed by
388 Thomas-Dee.
Hanno Becker0bb204c2018-10-30 10:08:33 +0000389 * Improve documentation of mbedtls_ssl_get_verify_result().
390 Fixes #517 reported by github-monoculture.
Janos Follath33329372018-09-06 10:41:33 +0100391 * Add MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR flag to mbedtls_mpi_gen_prime() and
392 use it to reduce error probability in RSA key generation to levels mandated
393 by FIPS-186-4.
Simon Butcherc86993e2018-09-27 09:48:54 +0100394
Simon Butcher5d40f672018-09-06 16:24:48 +0100395= mbed TLS 2.13.1 branch released 2018-09-06
Simon Butcherb3633822018-07-30 22:10:48 +0100396
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100397API Changes
Hanno Beckeracef2922018-09-05 16:19:07 +0100398 * Extend the platform module with an abstraction mbedtls_platform_gmtime_r()
Hanno Becker921b76d2018-09-05 16:21:36 +0100399 whose implementation should behave as a thread-safe version of gmtime().
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100400 This allows users to configure such an implementation at compile time when
Hanno Beckeracef2922018-09-05 16:19:07 +0100401 the target system cannot be deduced automatically, by setting the option
402 MBEDTLS_PLATFORM_GMTIME_R_ALT. At this stage Mbed TLS is only able to
403 automatically select implementations for Windows and POSIX C libraries.
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100404
Simon Butcherb3633822018-07-30 22:10:48 +0100405Bugfix
Andres Amaya Garcia8c9a6202018-09-05 11:30:28 +0100406 * Fix build failures on platforms where only gmtime() is available but
407 neither gmtime_r() nor gmtime_s() are present. Fixes #1907.
Simon Butcherb3633822018-07-30 22:10:48 +0100408
Simon Butcher4d075cd2018-08-31 15:59:10 +0100409= mbed TLS 2.13.0 branch released 2018-08-31
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100410
k-stachowiak21feae52018-07-09 14:42:35 +0200411Security
k-stachowiak6ca436a2018-07-16 12:20:10 +0200412 * Fix an issue in the X.509 module which could lead to a buffer overread
413 during certificate extensions parsing. In case of receiving malformed
414 input (extensions length field equal to 0), an illegal read of one byte
415 beyond the input buffer is made. Found and analyzed by Nathan Crandall.
k-stachowiak21feae52018-07-09 14:42:35 +0200416
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200417Features
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200418 * Add support for fragmentation of outgoing DTLS handshake messages. This
419 is controlled by the maximum fragment length as set locally or negotiated
Manuel Pégourié-Gonnardf2f1d402018-08-21 09:53:22 +0200420 with the peer, as well as by a new per-connection MTU option, set using
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200421 mbedtls_ssl_set_mtu().
Manuel Pégourié-Gonnardb8eec192018-08-20 09:34:02 +0200422 * Add support for auto-adjustment of MTU to a safe value during the
423 handshake when flights do not get through (RFC 6347, section 4.1.1.1,
424 last paragraph).
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100425 * Add support for packing multiple records within a single datagram,
426 enabled by default.
Hanno Becker02f6f5a2018-08-28 12:54:27 +0100427 * Add support for buffering out-of-order handshake messages in DTLS.
Hanno Beckeraa249372018-08-22 10:27:13 +0100428 The maximum amount of RAM used for this can be controlled by the
429 compile-time constant MBEDTLS_SSL_DTLS_MAX_BUFFERING defined
430 in mbedtls/config.h.
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100431
432API Changes
Hanno Becker1841b0a2018-08-24 11:13:57 +0100433 * Add function mbedtls_ssl_set_datagram_packing() to configure
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100434 the use of datagram packing (enabled by default).
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200435
Gilles Peskine104d8582018-06-27 10:57:33 +0200436Bugfix
Simon Butcherb5afb972018-08-31 11:59:56 +0100437 * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation
438 failure in the function could lead to other buffers being leaked.
Gilles Peskine104d8582018-06-27 10:57:33 +0200439 * Fixes an issue with MBEDTLS_CHACHAPOLY_C which would not compile if
440 MBEDTLS_ARC4_C and MBEDTLS_CIPHER_NULL_CIPHER weren't also defined. #1890
Jaeden Amerof48163a2018-08-10 10:49:10 +0100441 * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails.
442 Fix contributed by Espressif Systems.
Ron Eldor3f38cf72018-06-21 16:40:24 +0300443 * Add ecc extensions only if an ecc based ciphersuite is used.
Ron Eldor84e62f82018-06-28 11:09:09 +0300444 This improves compliance to RFC 4492, and as a result, solves
445 interoperability issues with BouncyCastle. Raised by milenamil in #1157.
Simon Butcherb5afb972018-08-31 11:59:56 +0100446 * Replace printf with mbedtls_printf in the ARIA module. Found by
447 TrinityTonic in #1908.
Hanno Becker9dc3be72018-08-14 15:22:05 +0100448 * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len()
Hanno Becker361f2542018-08-13 16:36:58 +0100449 and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941.
Hanno Beckereb2b15a2018-08-17 09:47:22 +0100450 * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake
451 with TLS versions 1.1 and earlier when the server requested authentication
452 without providing a list of CAs. This was due to an overly strict bounds
453 check in parsing the CertificateRequest message,
454 introduced in Mbed TLS 2.12.0. Fixes #1954.
Hanno Becker44814642018-08-03 09:53:48 +0100455 * Fix a miscalculation of the maximum record expansion in
456 mbedtls_ssl_get_record_expansion() in case of ChachaPoly ciphersuites,
457 or CBC ciphersuites in (D)TLS versions 1.1 or higher. Fixes #1913, #1914.
Simon Butcherb5afb972018-08-31 11:59:56 +0100458 * Fix undefined shifts with negative values in certificates parsing
459 (found by Catena cyber using oss-fuzz)
Hanno Beckera70fb952017-10-08 16:13:03 +0100460 * Fix memory leak and free without initialization in pk_encrypt
461 and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128.
Simon Butcherb5afb972018-08-31 11:59:56 +0100462 * Remove redundant else statement. Raised by irwir. Fixes #1776.
Gilles Peskine104d8582018-06-27 10:57:33 +0200463
Jaeden Amero372b50b2018-08-10 10:56:31 +0100464Changes
465 * Copy headers preserving timestamps when doing a "make install".
466 Contributed by xueruini.
Jaeden Amero03bd4842018-08-10 11:17:14 +0100467 * Allow the forward declaration of public structs. Contributed by Dawid
468 Drozd. Fixes #1215 raised by randombit.
Jaeden Amerod8f416982018-08-10 11:23:15 +0100469 * Improve compatibility with some alternative CCM implementations by using
470 CCM test vectors from RAM.
Hanno Beckerf1035422018-08-16 16:07:27 +0100471 * Add support for buffering of out-of-order handshake messages.
Janos Follath08a4aeb2018-08-06 14:20:15 +0100472 * Add warnings to the documentation of the HKDF module to reduce the risk
473 of misusing the mbedtls_hkdf_extract() and mbedtls_hkdf_expand()
474 functions. Fixes #1775. Reported by Brian J. Murray.
475
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100476= mbed TLS 2.12.0 branch released 2018-07-25
477
Gilles Peskine104d8582018-06-27 10:57:33 +0200478Security
479 * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384,
480 in (D)TLS 1.0 to 1.2, that allowed an active network attacker to
481 partially recover the plaintext of messages under some conditions by
482 exploiting timing measurements. With DTLS, the attacker could perform
483 this recovery by sending many messages in the same connection. With TLS
484 or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only
485 worked if the same secret (for example a HTTP Cookie) has been repeatedly
486 sent over connections manipulated by the attacker. Connections using GCM
487 or CCM instead of CBC, using hash sizes other than SHA-384, or using
488 Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was
489 caused by a miscalculation (for SHA-384) in a countermeasure to the
490 original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi
491 Shamir.
Manuel Pégourié-Gonnard1cc1fb02018-06-28 12:10:27 +0200492 * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to
493 1.2, that allowed a local attacker, able to execute code on the local
494 machine as well as manipulate network packets, to partially recover the
Manuel Pégourié-Gonnard830ce112018-07-11 18:27:08 +0200495 plaintext of messages under some conditions by using a cache attack
Antonin Décimod5f47592019-01-23 15:24:37 +0100496 targeting an internal MD/SHA buffer. With TLS or if
Manuel Pégourié-Gonnard830ce112018-07-11 18:27:08 +0200497 mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if
498 the same secret (for example a HTTP Cookie) has been repeatedly sent over
499 connections manipulated by the attacker. Connections using GCM or CCM
500 instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected.
501 Found by Kenny Paterson, Eyal Ronen and Adi Shamir.
Manuel Pégourié-Gonnard7b420302018-06-28 10:38:35 +0200502 * Add a counter-measure against a vulnerability in TLS ciphersuites based
503 on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to
504 execute code on the local machine as well as manipulate network packets,
505 to partially recover the plaintext of messages under some conditions (see
506 previous entry) by using a cache attack targeting the SSL input record
507 buffer. Connections using GCM or CCM instead of CBC or using
508 Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson,
509 Eyal Ronen and Adi Shamir.
Gilles Peskine104d8582018-06-27 10:57:33 +0200510
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200511Features
512 * Add new crypto primitives from RFC 7539: stream cipher Chacha20, one-time
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200513 authenticator Poly1305 and AEAD construct Chacha20-Poly1305. Contributed
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100514 by Daniel King.
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200515 * Add support for CHACHA20-POLY1305 ciphersuites from RFC 7905.
Simon Butcher231d7e52018-07-10 11:56:19 +0100516 * Add platform support for the Haiku OS. (https://www.haiku-os.org).
517 Contributed by Augustin Cavalier.
Simon Butcher00af4472018-07-10 15:35:43 +0100518 * Make the receive and transmit buffers independent sizes, for situations
519 where the outgoing buffer can be fixed at a smaller size than the incoming
520 buffer, which can save some RAM. If buffer lengths are kept equal, there
521 is no functional difference. Contributed by Angus Gratton, and also
522 independently contributed again by Paul Sokolovsky.
Ron Eldor9cf0d532018-07-15 09:34:35 +0300523 * Add support for key wrapping modes based on AES as defined by
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100524 NIST SP 800-38F algorithms KW and KWP and by RFC 3394 and RFC 5649.
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200525
Simon Butcher9e02b972018-06-28 11:56:57 +0100526Bugfix
527 * Fix the key_app_writer example which was writing a leading zero byte which
528 was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
niisatob7d39db2018-06-25 20:44:57 +0900529 * Fix compilation error on C++, because of a variable named new.
niisato164b9cd2018-06-25 20:47:05 +0900530 Found and fixed by Hirotaka Niisato in #1783.
Simon Butcher1d97cab2018-06-28 12:06:16 +0100531 * Fix "no symbols" warning issued by ranlib when building on Mac OS X. Fix
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100532 contributed by tabascoeye.
Andres Amaya Garciaa562c262017-07-11 14:39:30 +0100533 * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
534 return value. Found by @davidwu2000. #839
Simon Butcher1ab9b572018-06-28 12:10:56 +0100535 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
536 Philippe Antoine. Fixes #1623.
Simon Butcher05fa46e2018-07-02 12:00:54 +0100537 * Remove unused headers included in x509.c. Found by Chris Hanson and fixed
538 by Brendan Shanks. Part of a fix for #992.
Ron Eldorda2a3122018-06-17 14:51:59 +0300539 * Fix compilation error when MBEDTLS_ARC4_C is disabled and
540 MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100541 * Added length checks to some TLS parsing functions. Found and fixed by
542 Philippe Antoine from Catena cyber. #1663.
Simon Butcher6c344422018-06-24 16:20:56 +0100543 * Fix the inline assembly for the MPI multiply helper function for i386 and
544 i386 with SSE2. Found by László Langó. Fixes #1550
Ron Eldor6332e362017-10-01 17:11:54 +0300545 * Fix namespacing in header files. Remove the `mbedtls` namespacing in
Ron Eldor6fd941f2017-05-14 16:17:33 +0300546 the `#include` in the header files. Resolves #857
Simon Butcherecb635e2018-07-24 10:03:41 +0100547 * Fix compiler warning of 'use before initialisation' in
548 mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid
549 Drozd. #1098
Simon Butcher05330542018-07-24 12:54:15 +0100550 * Fix decryption for zero length messages (which contain all padding) when a
551 CBC based ciphersuite is used together with Encrypt-then-MAC. Previously,
552 such a message was wrongly reported as an invalid record and therefore lead
553 to the connection being terminated. Seen most often with OpenSSL using
554 TLS 1.0. Reported by @kFYatek and by Conor Murphy on the forum. Fix
555 contributed by Espressif Systems. Fixes #1632
Andres Amaya Garcia81f06332018-07-04 10:01:39 +0100556 * Fix ssl_client2 example to send application data with 0-length content
557 when the request_size argument is set to 0 as stated in the documentation.
558 Fixes #1833.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100559 * Correct the documentation for `mbedtls_ssl_get_session()`. This API has
560 deep copy of the session, and the peer certificate is not lost. Fixes #926.
Simon Butcher2c929492018-07-24 17:20:17 +0100561 * Fix build using -std=c99. Fixed by Nick Wilson.
Simon Butcher9e02b972018-06-28 11:56:57 +0100562
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100563Changes
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100564 * Fail when receiving a TLS alert message with an invalid length, or invalid
565 zero-length messages when using TLS 1.2. Contributed by Espressif Systems.
566 * Change the default behaviour of mbedtls_hkdf_extract() to return an error
567 when calling with a NULL salt and non-zero salt_len. Contributed by
568 Brian J Murray
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100569 * Change the shebang line in Perl scripts to look up perl in the PATH.
570 Contributed by fbrosson.
Nicholas Wilson512b4ee2017-12-05 12:07:33 +0000571 * Allow overriding the time on Windows via the platform-time abstraction.
572 Fixed by Nick Wilson.
573 * Use gmtime_r/gmtime_s for thread-safety. Fixed by Nick Wilson.
Simon Butcher9fa21bf2018-06-27 10:50:58 +0100574
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +0200575= mbed TLS 2.11.0 branch released 2018-06-18
576
577Features
Simon Butcher4ed38802018-06-12 17:35:06 +0100578 * Add additional block mode, OFB (Output Feedback), to the AES module and
579 cipher abstraction module.
580 * Implement the HMAC-based extract-and-expand key derivation function
581 (HKDF) per RFC 5869. Contributed by Thomas Fossati.
582 * Add support for the CCM* block cipher mode as defined in IEEE Std. 802.15.4.
Jaeden Amerof4474e72018-05-23 14:21:02 +0100583 * Add support for the XTS block cipher mode with AES (AES-XTS).
584 Contributed by Aorimn in pull request #414.
Gilles Peskineb44692f2018-04-24 12:18:19 +0200585 * In TLS servers, support offloading private key operations to an external
586 cryptoprocessor. Private key operations can be asynchronous to allow
587 non-blocking operation of the TLS server stack.
Simon Butcherebe23ed2018-06-12 16:46:45 +0100588
Simon Butcher601144e2018-06-12 17:04:58 +0100589Bugfix
Simon Butcher4ed38802018-06-12 17:35:06 +0100590 * Fix the cert_write example to handle certificates signed with elliptic
591 curves as well as RSA. Fixes #777 found by dbedev.
Simon Butchere5cd8682018-06-14 10:30:19 +0100592 * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
593 used by user applications. Found and fixed by Fabio Alessandrelli.
Simon Butcher600c5e62018-06-14 08:58:59 +0100594 * Fix compilation warnings with IAR toolchain, on 32 bit platform.
595 Reported by rahmanih in #683
Simon Butcher925568a2018-06-18 11:54:44 +0100596 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
Simon Butcher4ed38802018-06-12 17:35:06 +0100597
598Changes
599 * Changed CMake defaults for IAR to treat all compiler warnings as errors.
Simon Butcherb6a5bff2018-06-18 11:51:36 +0100600 * Changed the Clang parameters used in the CMake build files to work for
601 versions later than 3.6. Versions of Clang earlier than this may no longer
602 work. Fixes #1072
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200603
Simon Butcherd5a09f12018-06-06 14:47:47 +0100604= mbed TLS 2.10.0 branch released 2018-06-06
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100605
Manuel Pégourié-Gonnard08d1e912018-02-27 12:43:35 +0100606Features
607 * Add support for ARIA cipher (RFC 5794) and associated TLS ciphersuites
608 (RFC 6209). Disabled by default, see MBEDTLS_ARIA_C in config.h
609
Gilles Peskine80aa3b82018-04-04 10:33:45 +0200610API Changes
Andres Amaya Garcia19624052018-03-08 20:06:03 +0000611 * Extend the platform module with a util component that contains
612 functionality shared by multiple Mbed TLS modules. At this stage
613 platform_util.h (and its associated platform_util.c) only contain
614 mbedtls_platform_zeroize(), which is a critical function from a security
615 point of view. mbedtls_platform_zeroize() needs to be regularly tested
616 against compilers to ensure that calls to it are not removed from the
617 output binary as part of redundant code elimination optimizations.
618 Therefore, mbedtls_platform_zeroize() is moved to the platform module to
619 facilitate testing and maintenance.
Hanno Becker2bd57572018-03-28 14:52:35 +0100620
Simon Butcherd72700a2018-06-01 19:11:55 +0100621Bugfix
622 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
623 build to fail. Found by zv-io. Fixes #1651.
624
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100625Changes
626 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Moran Pekera64fba42018-02-25 13:29:03 +0200627 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
628 TrinityTonic. #1359.
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100629
Jaeden Amero7d7bad62018-04-27 13:07:13 +0100630= mbed TLS 2.9.0 branch released 2018-04-30
Ron Eldorfb46c322016-12-16 16:15:56 +0200631
Simon Butcherf85c90a2017-07-27 15:11:52 +0100632Security
Simon Butcherb03120a2018-04-30 16:40:25 +0100633 * Fix an issue in the X.509 module which could lead to a buffer overread
634 during certificate validation. Additionally, the issue could also lead to
635 unnecessary callback checks being made or to some validation checks to be
636 omitted. The overread could be triggered remotely, while the other issues
637 would require a non DER-compliant certificate to be correctly signed by a
638 trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
639 luocm. Fixes #825.
640 * Fix the buffer length assertion in the ssl_parse_certificate_request()
641 function which led to an arbitrary overread of the message buffer. The
642 overreads could be caused by receiving a malformed message at the point
643 where an optional signature algorithms list is expected when the signature
644 algorithms section is too short. In builds with debug output, the overread
645 data is output with the debug data.
Andrzej Kurekb7a18c02018-04-25 05:25:30 -0400646 * Fix a client-side bug in the validation of the server's ciphersuite choice
Simon Butcherb03120a2018-04-30 16:40:25 +0100647 which could potentially lead to the client accepting a ciphersuite it didn't
648 offer or a ciphersuite that cannot be used with the TLS or DTLS version
649 chosen by the server. This could lead to corruption of internal data
650 structures for some configurations.
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100651
Gilles Peskine15ad5792018-03-22 22:21:55 +0100652Features
Simon Butcherb03120a2018-04-30 16:40:25 +0100653 * Add an option, MBEDTLS_AES_FEWER_TABLES, to dynamically compute smaller AES
654 tables during runtime, thereby reducing the RAM/ROM footprint by ~6KiB.
655 Suggested and contributed by jkivilin in pull request #394.
Gilles Peskine15ad5792018-03-22 22:21:55 +0100656 * Add initial support for Curve448 (RFC 7748). Only mbedtls_ecp_mul() and
657 ECDH primitive functions (mbedtls_ecdh_gen_public(),
658 mbedtls_ecdh_compute_shared()) are supported for now. Contributed by
Simon Butchere6a2a1a2018-05-01 13:57:53 +0100659 Nicholas Wilson in pull request #348.
Hanno Becker371f31c2017-06-07 15:56:54 +0100660
661API Changes
Simon Butcherb03120a2018-04-30 16:40:25 +0100662 * Extend the public API with the function of mbedtls_net_poll() to allow user
663 applications to wait for a network context to become ready before reading
664 or writing.
665 * Add function mbedtls_ssl_check_pending() to the public API to allow
666 a check for whether more more data is pending to be processed in the
667 internal message buffers.
Gilles Peskine557e77d2018-04-04 09:18:11 +0200668 This function is necessary to determine when it is safe to idle on the
669 underlying transport in case event-driven IO is used.
Hanno Becker371f31c2017-06-07 15:56:54 +0100670
Andres AGee7157e2016-12-07 10:25:19 +0000671Bugfix
Simon Butcherb03120a2018-04-30 16:40:25 +0100672 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
Gilles Peskine08185402018-03-22 21:50:48 +0100673 contributed by Brian J Murray and David Brown.
Gilles Peskine51d93942018-03-23 01:42:44 +0100674 * Add missing dependencies in test suites that led to build failures
675 in configurations that omit certain hashes or public-key algorithms.
676 Fixes #1040.
Jaeden Amerob6049602018-03-26 18:25:58 +0100677 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
678 #1353
Gilles Peskinef69ad5a2018-03-27 23:08:53 +0200679 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
Simon Butcherb03120a2018-04-30 16:40:25 +0100680 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
681 Deomid Ryabkov. Fixes #1299, #1475.
682 * Fix the Makefile build process for building shared libraries on Mac OS X.
683 Fixed by mnacamura.
Jethro Beekmand2df9362018-02-16 13:11:04 -0800684 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcherb03120a2018-04-30 16:40:25 +0100685 unable to parse keys which had only the optional parameters field of the
Jethro Beekmancb122372018-04-11 08:40:38 -0700686 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
Simon Butcherb03120a2018-04-30 16:40:25 +0100687 * Return the plaintext data more quickly on unpadded CBC decryption, as
688 stated in the mbedtls_cipher_update() documentation. Contributed by
689 Andy Leiserson.
Gilles Peskineb9e86962018-04-04 09:20:59 +0200690 * Fix overriding and ignoring return values when parsing and writing to
691 a file in pk_sign program. Found by kevlut in #1142.
Hanno Beckerc53826b2017-10-12 07:46:41 +0100692 * Restrict usage of error code MBEDTLS_ERR_SSL_WANT_READ to situations
693 where data needs to be fetched from the underlying transport in order
694 to make progress. Previously, this error code was also occasionally
695 returned when unexpected messages were being discarded, ignoring that
696 further messages could potentially already be pending to be processed
Simon Butcherb03120a2018-04-30 16:40:25 +0100697 in the internal buffers; these cases led to deadlocks when event-driven
698 I/O was used. Found and reported by Hubert Mis in #772.
Gilles Peskinef2b76cd2018-04-19 17:41:39 +0200699 * Fix buffer length assertions in the ssl_parse_certificate_request()
700 function which leads to a potential one byte overread of the message
701 buffer.
Andrzej Kurek5462e022018-04-20 07:58:53 -0400702 * Fix invalid buffer sizes passed to zlib during record compression and
703 decompression.
Simon Butchere6a2a1a2018-05-01 13:57:53 +0100704 * Fix the soversion of libmbedcrypto to match the soversion of the
705 maintained 2.7 branch. The soversion was increased in Mbed TLS
706 version 2.7.1 to reflect breaking changes in that release, but the
707 increment was missed in 2.8.0 and later releases outside of the 2.7 branch.
Gilles Peskine08185402018-03-22 21:50:48 +0100708
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100709Changes
710 * Remove some redundant code in bignum.c. Contributed by Alexey Skalozub.
Simon Butcherb03120a2018-04-30 16:40:25 +0100711 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
712 independently by Matthieu Volat and Arne Schwabe.
Gilles Peskine51d93942018-03-23 01:42:44 +0100713 * Improve testing in configurations that omit certain hashes or
714 public-key algorithms. Includes contributions by Gert van Dijk.
715 * Improve negative testing of X.509 parsing.
Andres Amaya Garcia768bbaf2018-03-21 15:05:12 +0000716 * Do not define global mutexes around readdir() and gmtime() in
717 configurations where the feature is disabled. Found and fixed by Gergely
718 Budai.
Simon Butcherb03120a2018-04-30 16:40:25 +0100719 * Harden the function mbedtls_ssl_config_free() against misuse, so that it
720 doesn't leak memory if the user doesn't use mbedtls_ssl_conf_psk() and
721 instead incorrectly manipulates the configuration structure directly.
722 Found and fix submitted by junyeonLEE in #1220.
Andres Amaya Garciacb47a792018-03-27 21:19:50 +0100723 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
724 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
725 without PBES2. Fixed by Marcos Del Sol Vives.
Manuel Pégourié-Gonnardfff308e2018-03-28 11:13:05 +0200726 * Add the order of the base point as N in the mbedtls_ecp_group structure
727 for Curve25519 (other curves had it already). Contributed by Nicholas
728 Wilson #481
Jaeden Amero4ba87fc2018-03-29 11:01:38 +0100729 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
730 Krylov.
Darryl Greeneea1c4e2018-03-29 16:05:44 +0100731 * Improve the documentation of mbedtls_ssl_write(). Suggested by
732 Paul Sokolovsky in #1356.
Simon Butcherb03120a2018-04-30 16:40:25 +0100733 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100734 letter must not be prefixed by '-', such as LLVM. Found and fixed by
735 Alex Hixon.
Andres Amaya Garciaea5a8a42018-03-25 23:57:09 +0100736 * Allow configuring the shared library extension by setting the DLEXT
Andres Amaya Garciad1b17882018-03-27 19:14:24 +0100737 environment variable when using the project makefiles.
Gilles Peskine4e4be7c2018-03-21 16:29:03 +0100738 * Optimize unnecessary zeroing in mbedtls_mpi_copy. Based on a contribution
Gilles Peskine092bf3d2018-04-01 12:43:48 +0200739 by Alexey Skalozub in #405.
Gilles Peskinea09453f2018-04-04 09:14:12 +0200740 * In the SSL module, when f_send, f_recv or f_recv_timeout report
741 transmitting more than the required length, return an error. Raised by
742 Sam O'Connor in #1245.
Gilles Peskinec96ccf42018-03-31 22:57:03 +0200743 * Improve robustness of mbedtls_ssl_derive_keys against the use of
744 HMAC functions with non-HMAC ciphersuites. Independently contributed
745 by Jiayuan Chen in #1377. Fixes #1437.
Simon Butcherb03120a2018-04-30 16:40:25 +0100746 * Improve security of RSA key generation by including criteria from
747 FIPS 186-4. Contributed by Jethro Beekman. #1380
Gilles Peskine81021ca2018-04-19 20:59:06 +0200748 * Declare functions in header files even when an alternative implementation
749 of the corresponding module is activated by defining the corresponding
750 MBEDTLS_XXX_ALT macro. This means that alternative implementations do
751 not need to copy the declarations, and ensures that they will have the
752 same API.
Andrzej Kurekaca09c72018-04-13 05:18:08 -0400753 * Add platform setup and teardown calls in test suites.
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100754
Jaeden Amero8be0e6d2018-03-16 16:25:12 +0000755= mbed TLS 2.8.0 branch released 2018-03-16
Gilles Peskine27b07542018-02-14 14:07:48 +0100756
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100757Default behavior changes
758 * The truncated HMAC extension now conforms to RFC 6066. This means
759 that when both sides of a TLS connection negotiate the truncated
760 HMAC extension, Mbed TLS can now interoperate with other
761 compliant implementations, but this breaks interoperability with
762 prior versions of Mbed TLS. To restore the old behavior, enable
763 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
764 config.h. Found by Andreas Walz (ivESK, Offenburg University of
765 Applied Sciences).
766
Hanno Becker7dc832b2017-11-16 17:39:34 +0000767Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100768 * Fix implementation of the truncated HMAC extension. The previous
769 implementation allowed an offline 2^80 brute force attack on the
770 HMAC key of a single, uninterrupted connection (with no
771 resumption of the session).
Gilles Peskine553a06f2018-03-13 17:15:34 +0100772 * Verify results of RSA private key operations to defend
773 against Bellcore glitch attack.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +0100774 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
775 a crash on invalid input.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +0100776 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
777 crash on invalid input.
Manuel Pégourié-Gonnardfd3e4fb2018-03-13 11:53:30 +0100778 * Fix CRL parsing to reject CRLs containing unsupported critical
779 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Hanno Becker7dc832b2017-11-16 17:39:34 +0000780
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800781Features
782 * Extend PKCS#8 interface by introducing support for the entire SHA
783 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine1d80a672018-02-14 11:33:30 +0100784 This allows reading encrypted PEM files produced by software that
785 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
786 OpenVPN Inc. Fixes #1339
Gilles Peskine3dabd6a2018-02-14 17:19:41 +0100787 * Add support for public keys encoded in PKCS#1 format. #1122
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800788
Hanno Beckercf092b22018-03-06 14:23:38 +0000789New deprecations
790 * Deprecate support for record compression (configuration option
791 MBEDTLS_ZLIB_SUPPORT).
792
Gilles Peskine27b07542018-02-14 14:07:48 +0100793Bugfix
794 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
795 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +0100796 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +0200797 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
798 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskine1bf61232018-02-27 08:37:52 +0100799 In the context of SSL, this resulted in handshake failure. Reported by
800 daniel in the Mbed TLS forum. #1351
Jaeden Ameroc5d08f82018-02-21 13:32:39 +0000801 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskineb4c571e2018-03-11 00:44:14 +0100802 * Fix setting version TLSv1 as minimal version, even if TLS 1
803 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
804 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
805 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +0300806 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
807 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +0300808 Nick Wilson on issue #355
Gilles Peskine08af5382018-03-11 00:15:56 +0100809 * In test_suite_pk, pass valid parameters when testing for hash length
itayzafrir693a1d92018-02-26 12:02:10 +0200810 overflow. #1179
Gilles Peskinea31d8202018-03-12 23:45:08 +0100811 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
812 by Guido Vranken. #639
Gilles Peskine3ff4a072018-03-12 23:54:20 +0100813 * Log correct number of ciphersuites used in Client Hello message. #918
Gilles Peskine5f193282018-03-13 17:18:06 +0100814 * Fix X509 CRT parsing that would potentially accept an invalid tag when
815 parsing the subject alternative names.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +0100816 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
817 that could cause a key exchange to fail on valid data.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +0100818 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
819 could cause a key exchange to fail on valid data.
Gilles Peskine8db3efb2018-02-21 19:16:20 +0100820 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
821 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +0100822 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
823 Found through fuzz testing.
Gilles Peskine27b07542018-02-14 14:07:48 +0100824
825Changes
826 * Fix tag lengths and value ranges in the documentation of CCM encryption.
827 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +0100828 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskinedf298682018-02-14 15:49:54 +0100829 * Remove support for the library reference configuration for picocoin.
Gilles Peskinebb2565c2018-02-21 17:59:40 +0100830 * MD functions deprecated in 2.7.0 are no longer inline, to provide
831 a migration path for those depending on the library's ABI.
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200832 * Clarify the documentation of mbedtls_ssl_setup.
Gilles Peskine6dc4a312018-03-13 00:13:06 +0100833 * Use (void) when defining functions with no parameters. Contributed by
834 Joris Aerts. #678
Gilles Peskine27b07542018-02-14 14:07:48 +0100835
Simon Butcher55fc4e02018-02-05 01:09:13 +0000836= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100837
Gilles Peskine28a0c722017-10-17 19:01:38 +0200838Security
Simon Butcher55fc4e02018-02-05 01:09:13 +0000839 * Fix a heap corruption issue in the implementation of the truncated HMAC
840 extension. When the truncated HMAC extension is enabled and CBC is used,
841 sending a malicious application packet could be used to selectively corrupt
842 6 bytes on the peer's heap, which could potentially lead to crash or remote
843 code execution. The issue could be triggered remotely from either side in
844 both TLS and DTLS. CVE-2018-0488
845 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
846 for the key size, which could potentially lead to crash or remote code
847 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
848 Qualcomm Technologies Inc. CVE-2018-0487
849 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
850 zeros.
851 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
852 64 KiB to the address of the SSL buffer and causing a wrap around.
853 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +0100854 default enabled) maximum fragment length extension is disabled in the
855 config and the application data buffer passed to mbedtls_ssl_write
856 is larger than the internal message buffer (16384 bytes by default), the
857 latter overflows. The exploitability of this issue depends on whether the
858 application layer can be forced into sending such large packets. The issue
859 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +0000860 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
861 Fixes #707.
862 * Add a provision to prevent compiler optimizations breaking the time
863 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +0100864 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +0100865 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +0300866 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
867 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +0100868 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
869 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000870 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
871 data. Previously, trailing zero bytes were detected and omitted for the
872 sake of saving memory, but potentially leading to slight timing
873 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +0100874 * Wipe stack buffer temporarily holding EC private exponent
875 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000876 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +0100877 (server-side). Could result in application crash, but only if an ALPN
878 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100879 * Change default choice of DHE parameters from untrustworthy RFC 5114
880 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
881 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +0200882
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200883Features
884 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +0100885 * The selftest program can execute a subset of the tests based on command
886 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +0200887 * New unit tests for timing. Improve the self-test to be more robust
888 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +0100889 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +0000890 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +0100891 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +0100892 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +0300893 * Add support for alternative implementations for ECDSA, controlled by new
894 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
895 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +0300896 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +0300897 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +0300898 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000899 * Add support for alternative implementation of ECDH, controlled by the
900 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +0300901 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +0300902 The following functions from the ECDH module can be replaced
903 with an alternative implementation:
904 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000905 * Add support for alternative implementation of ECJPAKE, controlled by
906 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000907 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +0200908
Hanno Beckera47023e2017-12-22 17:08:03 +0000909API Changes
910 * Extend RSA interface by multiple functions allowing structure-
911 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +0000912 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +0000913 up RSA contexts from partial key material and having them completed to the
914 needs of the implementation automatically. This allows to setup private RSA
915 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
916 purpose or CRT and/or blinding.
917 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
918 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100919 * The following functions in the message digest modules (MD2, MD4, MD5,
920 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
921 The new functions change the return type from void to int to allow
922 returning error codes when using MBEDTLS_<MODULE>_ALT.
923 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
924 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
925 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100926 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200927
Ron Eldor73a38172017-10-03 15:58:26 +0300928New deprecations
929 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000930 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100931 * Direct manipulation of structure fields of RSA contexts is deprecated.
932 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000933 * Deprecate usage of message digest functions that return void
934 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
935 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
936 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
937 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100938 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
939 parameters from RFC 3526 or the newly added parameters from RFC 7919.
940 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
941 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
942 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000943 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
944 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100945 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100946
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100947Bugfix
948 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
949 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100950 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
Simon Butcherb03120a2018-04-30 16:40:25 +0100951 Found by projectgus and Jethro Beekman, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100952 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300953 * Parse signature algorithm extension when renegotiating. Previously,
954 renegotiated handshakes would only accept signatures using SHA-1
955 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000956 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
957 dates on leap years with 100 and 400 intervals are handled correctly. Found
958 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200959 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
960 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100961 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
962 Found independently by Florian in the mbed TLS forum and by Mishamax.
963 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100964 * Fix variable used before assignment compilation warnings with IAR
965 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000966 * Fix unchecked return codes from AES, DES and 3DES functions in
967 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
968 If a call to one of the functions of the cryptographic primitive modules
969 failed, the error may not be noticed by the function
970 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
971 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100972 * Include configuration file in md.h, to fix compilation warnings.
973 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100974 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
975 writing routines that prevented these functions to work with alternative
976 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100977 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
978 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100979 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000980 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100981 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000982 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100983 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000984 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000985 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100986 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100987 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100988 * Add size-checks for record and handshake message content, securing
989 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300990 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
991 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +0100992 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000993 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100994 * Fix possible memory leaks in mbedtls_gcm_self_test().
995 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +0000996 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
997 RSA test suite where the failure of CTR DRBG initialization lead to
998 freeing an RSA context and several MPI's without proper initialization
999 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +01001000 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +01001001 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
1002 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001003 * Fix an issue in the cipher decryption with the mode
1004 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
1005 Note, this padding mode is not used by the TLS protocol. Found and fixed by
1006 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +01001007 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
1008 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
1009 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
1010 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +01001011 structure. Do not assume that zeroizing a context is a correct way to
1012 reset it. Found independently by ccli8 on Github.
1013 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001014 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
1015 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +01001016
1017Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +00001018 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +01001019 and the message digest. Further, allow enabling/disabling of authority
1020 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +00001021 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
1022 particular, don't require P,Q if neither CRT nor blinding are
1023 used. Reported and fix proposed independently by satur9nine and sliai
1024 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +01001025 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +01001026 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
1027 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +01001028 * Update all internal usage of deprecated message digest functions to the
1029 new ones with return codes. In particular, this modifies the
1030 mbedtls_md_info_t structure. Propagate errors from these functions
1031 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +00001032 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +01001033 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
1034 modules where the software implementation can be replaced by a hardware
1035 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +01001036 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
1037 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +01001038
Simon Butcher72ea31b2017-08-10 11:51:16 +01001039= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +02001040
Simon Butcherb060cc22017-07-28 01:04:34 +01001041Security
Simon Butcher01971d02017-08-10 10:48:01 +01001042 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherf85c90a2017-07-27 15:11:52 +01001043 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
1044 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +01001045 (default: 8) intermediates, even when it was not trusted. This could be
1046 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +01001047 (the default), the handshake was correctly aborted).
1048 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +01001049 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
1050 Found by Laurent Simon.
Simon Butcherf85c90a2017-07-27 15:11:52 +01001051
Andres Amaya Garcia2187e032017-07-07 13:19:13 +01001052Features
1053 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia24f36412017-07-12 11:27:05 +01001054 and the context struct mbedtls_platform_context to perform
1055 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia5478bc72017-07-18 10:24:26 +01001056 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +01001057 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +01001058 some embedded environments to provide a means of initialising underlying
1059 cryptographic acceleration hardware.
Andres Amaya Garcia2187e032017-07-07 13:19:13 +01001060
Simon Butcherab670432017-07-20 12:33:41 +02001061API Changes
1062 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
1063 API consistent with mbed TLS 2.5.0. Specifically removed the inline
1064 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +01001065 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
1066 by James Cowgill. #978
Simon Butcherf85c90a2017-07-27 15:11:52 +01001067 * Certificate verification functions now set flags to -1 in case the full
1068 chain was not verified due to an internal error (including in the verify
1069 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +01001070 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherf85c90a2017-07-27 15:11:52 +01001071 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +01001072 a fatal error in the verify callback.
Simon Butcherab670432017-07-20 12:33:41 +02001073
Ron Eldore2efaea2016-12-16 16:15:56 +02001074Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +01001075 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
1076 Reported by roberto. #716
1077 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor63140682017-01-09 19:27:59 +02001078 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +01001079 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +01001080 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
1081 in the case of an error. Found by redplait. #590
Ron Eldorca6ff582017-01-12 14:50:50 +02001082 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +01001083 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciab820bf82017-05-04 11:05:55 +01001084 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
1085 compilation when using ARM Compiler 6.
Simon Butcher5deb5182017-07-26 17:25:55 +01001086 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001087 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher5deb5182017-07-26 17:25:55 +01001088 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
1089 KNOX Security, Samsung Research America
Andres AG2e65a542017-02-17 13:54:43 +00001090 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001091 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e65a542017-02-17 13:54:43 +00001092 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
1093 KNOX Security, Samsung Research America
Simon Butcher5deb5182017-07-26 17:25:55 +01001094 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001095 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher5deb5182017-07-26 17:25:55 +01001096 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +01001097 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +01001098 function mbedtls_time() instead. Found by wairua. #666
1099 * Avoid shadowing of time and index functions through mbed TLS function
1100 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +02001101
Janos Follath78b14732017-06-22 10:02:07 +01001102Changes
Janos Follathb85291c2017-06-22 10:02:07 +01001103 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +01001104 64-bit division. This is useful on embedded platforms where 64-bit division
1105 created a dependency on external libraries. #708
Janos Follath78b14732017-06-22 10:02:07 +01001106 * Removed mutexes from ECP hardware accelerator code. Now all hardware
1107 accelerator code in the library leaves concurrency handling to the
1108 platform. Reported by Steven Cooreman. #863
Andres Amaya Garciad0e15d72017-06-26 12:57:44 +01001109 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
1110 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +01001111 * Added a test script that can be hooked into git that verifies commits
1112 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +01001113 * Improve documentation of PKCS1 decryption functions.
Janos Follath78b14732017-06-22 10:02:07 +01001114
Simon Butcherf2a597f2017-06-20 23:08:10 +01001115= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +01001116
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001117Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +01001118 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
1119 The issue could only happen client-side with renegotiation enabled.
1120 Could result in DoS (application crash) or information leak
1121 (if the application layer sent data read from mbedtls_ssl_read()
1122 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +02001123 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
1124 certificate verification. SHA-1 can be turned back on with a compile-time
1125 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +02001126 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
1127 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +02001128 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
1129 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001130
Hanno Beckereccf60c2017-06-05 15:19:01 +01001131Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +01001132 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
1133 valid C and they prevented the test from compiling in Visual Studio 2015
1134 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +01001135 * Fix insufficient support for signature-hash-algorithm extension,
1136 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +01001137 * Fix behaviour that hid the original cause of fatal alerts in some cases
1138 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +02001139 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001140 * Fix SSLv3 renegotiation behaviour and stop processing data received from
1141 peer after sending a fatal alert to refuse a renegotiation attempt.
1142 Previous behaviour was to keep processing data even after the alert has
1143 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +01001144 * Accept empty trusted CA chain in authentication mode
Simon Butcherb03120a2018-04-30 16:40:25 +01001145 MBEDTLS_SSL_VERIFY_OPTIONAL. Found by Jethro Beekman. #864
Janos Follath5a1c0e72017-06-16 09:00:07 +01001146 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
1147 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
1148 reflect bad EC curves within verification result.
1149 * Fix bug that caused the modular inversion function to accept the invalid
1150 modulus 1 and therefore to hang. Found by blaufish. #641.
1151 * Fix incorrect sign computation in modular exponentiation when the base is
1152 a negative MPI. Previously the result was always negative. Found by Guido
1153 Vranken.
1154 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
1155 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +02001156
Gilles Peskine36091fe2017-05-03 16:55:03 +02001157Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +01001158 * Send fatal alerts in more cases. The previous behaviour was to skip
1159 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +00001160 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +01001161 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +00001162 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +02001163
Simon Butcher9f770172017-05-15 15:13:59 +01001164= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001165
Janos Follath45182a02017-03-23 10:41:56 +00001166Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +01001167 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +01001168 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
1169 Simon.
Janos Follath45182a02017-03-23 10:41:56 +00001170 * Add exponent blinding to RSA private operations as a countermeasure
1171 against side-channel attacks like the cache attack described in
1172 https://arxiv.org/abs/1702.08719v2.
1173 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
1174 Clémentine Maurice and Stefan Mangard.
1175
Simon Butcher4775e832017-05-13 22:56:08 +01001176Features
Janos Follath5a1c0e72017-06-16 09:00:07 +01001177 * Add hardware acceleration support for the Elliptic Curve Point module.
1178 This involved exposing parts of the internal interface to enable
1179 replacing the core functions and adding and alternative, module level
1180 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +01001181 * Add a new configuration option to 'mbedtls_ssl_config' to enable
1182 suppressing the CA list in Certificate Request messages. The default
1183 behaviour has not changed, namely every configured CAs name is included.
1184
Andres AGf5bf7182017-03-03 14:09:56 +00001185API Changes
1186 * The following functions in the AES module have been deprecated and replaced
1187 by the functions shown below. The new functions change the return type from
1188 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
1189 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
1190 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
1191 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
1192
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001193Bugfix
1194 * Remove macros from compat-1.3.h that correspond to deleted items from most
1195 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001196 * Fixed issue in the Threading module that prevented mutexes from
1197 initialising. Found by sznaider. #667 #843
1198 * Add checks in the PK module for the RSA functions on 64-bit systems.
1199 The PK and RSA modules use different types for passing hash length and
1200 without these checks the type cast could lead to data loss. Found by Guido
1201 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001202
Simon Butcherb65c2be2017-03-10 18:50:44 +00001203= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +01001204
Janos Follath182013f2016-10-25 10:50:22 +01001205Security
Simon Butcherb65c2be2017-03-10 18:50:44 +00001206 * Add checks to prevent signature forgeries for very large messages while
1207 using RSA through the PK module in 64-bit systems. The issue was caused by
1208 some data loss when casting a size_t to an unsigned int value in the
1209 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
1210 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +00001211 * Fixed potential livelock during the parsing of a CRL in PEM format in
1212 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
1213 characters after the footer could result in the execution of an infinite
1214 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
1215 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +01001216 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
1217 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +00001218 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +00001219 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
1220 when verifying the validity of a key on secp224k1. This could be
1221 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +00001222 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +00001223 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
1224 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +00001225
Andres AG703990b2016-10-24 11:23:36 +01001226Bugfix
Andres AGd1650662016-12-09 17:26:23 +00001227 * Fix output certificate verification flags set by x509_crt_verify_top() when
1228 traversing a chain of trusted CA. The issue would cause both flags,
1229 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
1230 set when the verification conditions are not met regardless of the cause.
1231 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +00001232 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
1233 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
1234 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +00001235 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
1236 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +00001237 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +00001238 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
1239 would compare 64 bits of the record counter instead of 48 bits as indicated
1240 in RFC 6347 Section 4.3.1. This could cause the execution of the
1241 renegotiation routines at unexpected times when the protocol is DTLS. Found
1242 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +01001243 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +01001244 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +01001245 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +00001246 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
1247 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1248 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
1249 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1250 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
1251 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +00001252 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
1253 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +00001254 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
1255 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +00001256 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
1257 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +00001258 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
1259 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +00001260 * Fixed the templates used to generate project and solution files for Visual
1261 Studio 2015 as well as the files themselves, to remove a build warning
1262 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +02001263 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
1264 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +00001265 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
1266 number to write in hexadecimal is negative and requires an odd number of
1267 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +00001268 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
1269 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +01001270
Janos Follath4c006cd2016-12-13 14:14:03 +00001271= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +00001272
1273Changes
1274 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
1275 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
1276 Authentication – October 2016
1277
Simon Butcher19dbd412016-10-16 19:35:49 +01001278= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +03001279
Andres AG60dbc932016-09-02 15:23:48 +01001280Security
Simon Butcheref8fa012016-10-16 00:44:08 +01001281 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
1282 with RFC-5116 and could lead to session key recovery in very long TLS
1283 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
1284 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
1285 https://eprint.iacr.org/2016/475.pdf
1286 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +01001287 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +01001288 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +01001289 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +01001290
Simon Butchercf8c1f42016-09-02 21:29:39 +03001291Features
Simon Butcher21c54812016-10-05 14:17:37 +01001292 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
1293 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001294 * Added hardware entropy selftest to verify that the hardware entropy source
1295 is functioning correctly.
1296 * Added a script to print build environment info for diagnostic use in test
1297 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +01001298 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
1299 configure the maximum length of a file path that can be buffered when
1300 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +01001301 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +01001302 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +01001303 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
1304 to configure the minimum number of bytes for entropy sources using the
1305 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001306
1307Bugfix
1308 * Fix for platform time abstraction to avoid dependency issues where a build
1309 may need time but not the standard C library abstraction, and added
1310 configuration consistency checks to check_config.h
1311 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +01001312 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
1313 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +03001314 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
1315 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +03001316 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
1317 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +01001318 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +01001319 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +01001320 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +01001321 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +01001322 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +01001323 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +01001324 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
1325 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
1326 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +01001327 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
1328 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +01001329 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +01001330 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +01001331 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +01001332 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +01001333 * Fix potential byte overread when verifying malformed SERVER_HELLO in
1334 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +01001335 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +01001336 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +01001337 * Fix compatibility issue with Internet Explorer client authentication,
1338 where the limited hash choices prevented the client from sending its
1339 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +01001340 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001341
1342Changes
1343 * Extended test coverage of special cases, and added new timing test suite.
1344 * Removed self-tests from the basic-built-test.sh script, and added all
1345 missing self-tests to the test suites, to ensure self-tests are only
1346 executed once.
1347 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
1348 * Added support for a Yotta specific configuration file -
1349 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +01001350 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +01001351 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +01001352 * Renamed source file library/net.c to library/net_sockets.c to avoid
1353 naming collision in projects which also have files with the common name
1354 net.c. For consistency, the corresponding header file, net.h, is marked as
1355 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +01001356 * Changed the strategy for X.509 certificate parsing and validation, to no
1357 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001358
Simon Butcher46125fb2016-06-27 19:43:55 +01001359= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001360
Janos Follathcc4eba72016-02-10 16:25:55 +00001361Security
Janos Follathe43b81a2016-02-10 16:25:55 +00001362 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +00001363 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +00001364 * Fix potential integer overflow to buffer overflow in
1365 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +01001366 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +01001367 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +00001368 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
1369 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +00001370
Simon Butcher3fe6cd32016-04-26 19:51:29 +01001371Features
1372 * Support for platform abstraction of the standard C library time()
1373 function.
1374
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001375Bugfix
1376 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
1377 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001378 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +00001379 * Fix potential build failures related to the 'apidoc' target, introduced
1380 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001381 * Fix issue in Makefile that prevented building using armar. #386
Antonin Décimod5f47592019-01-23 15:24:37 +01001382 * Fix memory leak that occurred only when ECJPAKE was enabled and ECDHE and
Janos Follath4ae5c292016-02-10 11:27:43 +00001383 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +00001384 * Fix an issue that caused valid certificates to be rejected whenever an
1385 expired or not yet valid certificate was parsed before a valid certificate
1386 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +01001387 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +00001388 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +01001389 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +00001390 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
1391 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +01001392 * Fix issue that caused a crash if invalid curves were passed to
1393 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +01001394 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +01001395 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +01001396 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +01001397 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001398
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +01001399Changes
1400 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
1401 don't use the optimized assembly for bignum multiplication. This removes
1402 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +01001403 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +01001404 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
1405 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +01001406 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
1407 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +01001408
1409= mbed TLS 2.2.1 released 2016-01-05
1410
1411Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +01001412 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +01001413 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +00001414 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +01001415 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
1416 SLOTH attack on TLS 1.2 server authentication (other attacks from the
1417 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001418 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +00001419
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001420Bugfix
1421 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
1422 * Fix bug in certificate validation that caused valid chains to be rejected
1423 when the first intermediate certificate has pathLenConstraint=0. Found by
1424 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +00001425 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +00001426 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +01001427 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001428 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +02001429 datagram if a single record in a datagram is unexpected, instead only
1430 drop the record and look at subsequent records (if any are present) in
1431 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +02001432
1433= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +00001434
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +02001435Security
1436 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
1437 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +00001438 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001439 * Fix potential heap corruption on Windows when
1440 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
1441 triggered remotely. Found by Guido Vranken, Intelworks.
1442 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +02001443 Cannot be triggered remotely unless you create X.509 certificates based
1444 on untrusted input or write keys of untrusted origin. Found by Guido
1445 Vranken, Intelworks.
1446 * The X509 max_pathlen constraint was not enforced on intermediate
1447 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001448 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001449
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001450Features
1451 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
1452 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001453 * Added a key extraction callback to accees the master secret and key
1454 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +02001455
1456Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +00001457 * Self-signed certificates were not excluded from pathlen counting,
1458 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001459 provided by Janos Follath. #319
1460 * Fix build error with configurations where ECDHE-PSK is the only key
1461 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001462 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +02001463 ECHD-ECDSA if the only key exchange. Multiple reports. #310
1464 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +02001465 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +09001466 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
1467 size/curve against the profile. Before that, there was no way to set a
1468 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001469 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +01001470 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
1471 Found by Kurt Danielson. #292
1472 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001473 * Fix bug in ASN.1 encoding of booleans that caused generated CA
1474 certificates to be rejected by some applications, including OS X
1475 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +01001476
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +01001477Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +01001478 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
1479 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001480
1481= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +01001482
1483Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +02001484 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
1485 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +01001486 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +02001487 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +01001488 once in the same handhake and mbedtls_ssl_conf_psk() was used.
1489 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
1490 remotely.
1491 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +01001492 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +01001493 Found by Guido Vranken, Intelworks. Not triggerable remotely.
1494 * Fix potential buffer overflow in mbedtls_mpi_read_string().
1495 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
1496 of TLS, but might be in other uses. On 32 bit machines, requires reading a
1497 string of close to or larger than 1GB to exploit; on 64 bit machines, would
1498 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +02001499 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +01001500 on crafted PEM input data. Found and fix provided by Guido Vranken,
1501 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +02001502 accept PEM data from an untrusted source.
1503 * Fix possible heap buffer overflow in base64_encoded() when the input
1504 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +01001505 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +01001506 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001507 the same mbedtls_ssl_config object and memory allocation fails. Found by
1508 Guido Vranken, Intelworks. Cannot be forced remotely.
1509 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +01001510 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001511 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +01001512 Found by Guido Vranken, Intelworks.
1513
1514Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +01001515 * Fix compile error in net.c with musl libc. Found and patch provided by
1516 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +01001517 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +01001518
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001519Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001520 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
1521 domain names are compliant with RFC 1035.
1522 * Fixed paths for check_config.h in example config files. (Found by bachp)
1523 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001524
1525= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001526
1527Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001528 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +01001529 signatures. (Found by Florian Weimer, Red Hat.)
1530 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +02001531 * Fix possible client-side NULL pointer dereference (read) when the client
1532 tries to continue the handshake after it failed (a misuse of the API).
1533 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +01001534 afl-fuzz.)
1535
1536Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +02001537 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
1538 * Fix off-by-one error in parsing Supported Point Format extension that
1539 caused some handshakes to fail.
1540
1541Changes
1542 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
1543 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +01001544 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001545 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001546 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001547 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +02001548 detected and mbedtls_ssl_read() will return
1549 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001550 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001551
1552= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +02001553
1554Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +02001555 * Added support for yotta as a build system.
1556 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001557
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +02001558Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001559 * Fix segfault in the benchmark program when benchmarking DHM.
1560 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +02001561 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +02001562 * Fix bug when parsing a ServerHello without extensions (found by David
1563 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +02001564 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
1565 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +02001566 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
1567 installed (found by Rawi666).
1568 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +02001569 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +02001570 (found by robotanarchy) (#232).
1571 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +02001572 tests (found by robotanarchy) (#232).
1573 * Fix missing -static-libgcc when building shared libraries for Windows
1574 with make.
Simon Butcher52754592015-09-03 13:06:01 +01001575 * Fix link error when building shared libraries for Windows with make.
1576 * Fix error when loading libmbedtls.so.
1577 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
1578 be always used (found by dcb314) (#235)
1579 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
1580 result trying to unlock an unlocked mutex on invalid input (found by
1581 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001582 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +02001583 * Fix memory corruption on client with overlong PSK identity, around
1584 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001585 Aleksandrs Saveljevs) (#238)
1586 * Fix unused function warning when using MBEDTLS_MDx_ALT or
1587 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +02001588 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
1589
1590Changes
Simon Butcher52754592015-09-03 13:06:01 +01001591 * The PEM parser now accepts a trailing space at end of lines (#226).
1592 * It is now possible to #include a user-provided configuration file at the
1593 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
1594 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001595 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +01001596 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +01001597 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001598 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001599 Hugo Leisink) (#210).
1600 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
1601 length.
1602
1603= mbed TLS 2.0.0 released 2015-07-13
1604
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001605Features
1606 * Support for DTLS 1.0 and 1.2 (RFC 6347).
1607 * Ability to override core functions from MDx, SHAx, AES and DES modules
1608 with custom implementation (eg hardware accelerated), complementing the
1609 ability to override the whole module.
1610 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +02001611 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001612 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +02001613 which algorithms and key sizes (curves for ECDSA) are acceptable.
1614 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001615 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001616 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001617 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001618
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +02001619API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +02001620 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
1621 You now need to link to all of them if you use TLS for example.
1622 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001623 Some names have been further changed to make them more consistent.
Antonin Décimod5f47592019-01-23 15:24:37 +01001624 Migration helpers scripts/rename.pl and include/mbedtls/compat-1.3.h are
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001625 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnarde6bdc442014-09-17 11:34:57 +02001626 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001627 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001628 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001629 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +02001630 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001631 * The following _init() functions that could return errors have
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +02001632 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001633 should generally be the first function called on this context after init:
1634 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001635 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
1636 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001637 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001638 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Tillmann Karras588ad502015-09-25 04:27:22 +02001639 Note that for mbedtls_ssl_setup(), you need to be done setting up the
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001640 ssl_config structure before calling it.
1641 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
1642 ssl_set_session() and ssl_set_client_transport_id(), plus
1643 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001644 (see rename.pl and compat-1.3.h above) and their first argument's type
1645 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001646 * ssl_set_bio() changed signature (contexts merged, order switched, one
1647 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001648 * The following functions have been introduced and must be used in callback
1649 implementations (SNI, PSK) instead of their *conf counterparts:
1650 mbedtls_ssl_set_hs_own_cert()
1651 mbedtls_ssl_set_hs_ca_chain()
1652 mbedtls_ssl_set_hs_psk()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001653 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01001654 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001655 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01001656 pointer, parameters reordered).
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001657 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
1658 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02001659 * The SSL debug callback gained two new arguments (file name, line number).
1660 * Debug modes were removed.
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001661 * mbedtls_ssl_conf_truncated_hmac() now returns void.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001662 * mbedtls_memory_buffer_alloc_init() now returns void.
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001663 * X.509 verification flags are now an uint32_t. Affect the signature of:
1664 mbedtls_ssl_get_verify_result()
1665 mbedtls_x509_ctr_verify_info()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001666 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001667 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01001668 * The following functions changed prototype to avoid an in-out length
1669 parameter:
1670 mbedtls_base64_encode()
1671 mbedtls_base64_decode()
1672 mbedtls_mpi_write_string()
1673 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02001674 * In the NET module, all "int" and "int *" arguments for file descriptors
1675 changed type to "mbedtls_net_context *".
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02001676 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02001677 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
1678 return void.
Antonin Décimod5f47592019-01-23 15:24:37 +01001679 * ecdsa_write_signature() gained an additional md_alg argument and
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02001680 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02001681 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02001682 * Last argument of x509_crt_check_key_usage() and
1683 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01001684 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
1685 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
1686 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01001687 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02001688 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
1689 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
1690 length parameter to include the terminating null byte for PEM input.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00001691 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02001692 * calloc() is now used instead of malloc() everywhere. API of platform
1693 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02001694 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001695 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
1696 (support for renegotiation now needs explicit enabling in config.h).
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02001697 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
1698 in config.h
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001699 * net_connect() and net_bind() have a new 'proto' argument to choose
1700 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02001701 Their 'port' argument type is changed to a string.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001702 * Some constness fixes
1703
1704Removals
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001705 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02001706 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
1707 mbedtls_ecp_muladd().
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02001708 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
1709 (use generic functions from md.h)
1710 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02001711 waiting function.
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02001712 * Removed test DHM parameters from the test certs module.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001713 * Removed the PBKDF2 module (use PKCS5).
1714 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
1715 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
1716 * Removed openssl.h (very partial OpenSSL compatibility layer).
1717 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
1718 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
1719 been removed (compiler is required to support 32-bit operations).
1720 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
1721 * Removed test program o_p_test, the script compat.sh does more.
1722 * Removed test program ssl_test, superseded by ssl-opt.sh.
1723 * Removed helper script active-config.pl
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001724
1725New deprecations
1726 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
1727 argument (allowing memory savings if HMAC is not used)
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001728
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001729Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001730 * Renamed a few headers to include _internal in the name. Those headers are
1731 not supposed to be included by users.
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02001732 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
1733 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001734 * Changed cipher_base_t into an opaque structure.
1735 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01001736 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001737 * Removed r and s from ecdsa_context
1738 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001739
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001740Default behavior changes
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02001741 * The default minimum TLS version is now TLS 1.0.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001742 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
1743 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001744 * Support for receiving SSLv2 ClientHello is now disabled by default at
1745 compile time.
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01001746 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02001747 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
1748 enabled in the default configuration, this is only noticeable if using a
1749 custom config.h
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01001750 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001751 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
1752 chain verification.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01001753 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02001754 * The following functions are now case-sensitive:
1755 mbedtls_cipher_info_from_string()
1756 mbedtls_ecp_curve_info_from_name()
1757 mbedtls_md_info_from_string()
1758 mbedtls_ssl_ciphersuite_from_string()
1759 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001760
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001761Requirement changes
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001762 * The minimum MSVC version required is now 2010 (better C99 support).
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001763 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001764 * Compiler is required to support C99 types such as long long and uint32_t.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001765
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001766API changes from the 1.4 preview branch
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001767 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
1768 new prototype, and mbedtls_ssl_set_read_timeout().
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001769 * The following functions now return void:
1770 mbedtls_ssl_conf_transport()
1771 mbedtls_ssl_conf_max_version()
1772 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02001773 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
1774 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
1775 an example implementation, see mbedtls_timing_delay_context and
1776 mbedtls_timing_set/get_delay().
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02001777 * With UDP sockets, it is no longer necessary to call net_bind() again
1778 after a successful net_accept().
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001779
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001780Changes
1781 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
1782 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001783 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
1784 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001785
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001786= mbed TLS 1.3 branch
1787
1788Security
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02001789 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01001790 extendedKeyUsage on the leaf certificate was lost (results not accessible
1791 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02001792 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
1793 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001794
1795Features
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02001796 * Improve ECC performance by using more efficient doubling formulas
1797 (contributed by Peter Dettman).
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02001798 * Add x509_crt_verify_info() to display certificate verification results.
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02001799 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02001800 (contributed by Daniel Kahn Gillmor).
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01001801 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
1802 * Add support for id-at-uniqueIdentifier in X.509 names.
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001803 * Add support for overriding snprintf() (except on Windows) and exit() in
1804 the platform layer.
1805 * Add an option to use macros instead of function pointers in the platform
1806 layer (helps get rid of unwanted references).
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00001807 * Improved Makefiles for Windows targets by fixing library targets and making
1808 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00001809 * The benchmark program also prints heap usage for public-key primitives
1810 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
1811 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
1812 speed and RAM (heap only for now) usage.
1813 * New script memory.sh helps measuring the ROM and RAM requirements of two
1814 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001815 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001816 warnings on use of deprecated functions (with GCC and Clang only).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001817 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001818 errors on use of deprecated functions.
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001819
1820Bugfix
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01001821 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01001822 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001823 * Fix bug in entropy.c when THREADING_C is also enabled that caused
1824 entropy_free() to crash (thanks to Rafał Przywara).
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001825 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
1826 once on the same context.
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001827 * Fix bug in ssl_mail_client when password is longer that username (found
1828 by Bruno Pape).
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001829 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1830 (detected by Clang's 3.6 UBSan).
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001831 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
1832 initialized but not set (found by pravic).
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001833 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
1834 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001835 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001836 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1837 ssl_write() is called before the handshake is finished (introduced in
1838 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001839 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1840 rejected.
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001841 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001842 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001843 * Fix hardclock() (only used in the benchmarking program) with some
1844 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001845 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001846 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1847 platforms.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001848 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001849 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
1850 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1851 in 1.3.10).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001852 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001853 * Add missing dependency on SHA-256 in some x509 programs (reported by
1854 Gergely Budai).
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001855 * Fix bug related to ssl_set_curves(): the client didn't check that the
1856 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001857
1858Changes
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001859 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1860 * Remove potential sources of timing variations (some contributed by Pascal
1861 Junod).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001862 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001863 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001864 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001865 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001866 more flexible (warning: OFLAGS is not used any more) (see the README)
1867 (contributed by Alon Bar-Lev).
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001868 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001869 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001870 * Move from SHA-1 to SHA-256 in example programs using signatures
1871 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001872 * Remove some unneeded inclusions of header files from the standard library
1873 "minimize" others (eg use stddef.h if only size_t is needed).
1874 * Change #include lines in test files to use double quotes instead of angle
1875 brackets for uniformity with the rest of the code.
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001876 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001877
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001878= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001879Security
1880 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001881 full and polarssl_free() is called (found by Mark Hasemeyer)
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001882 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1883 not by default).
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001884 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001885 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001886 client certificate) (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001887 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001888 (TLS server is not affected if it doesn't ask for a client certificate)
1889 (found using Codenomicon Defensics).
1890 * Fix potential stack overflow while parsing crafted X.509 certificates
1891 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001892 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001893 * Fix timing difference that could theoretically lead to a
1894 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
1895 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001896
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001897Features
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001898 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
1899 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
1900 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001901 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001902 * Add x509_crl_parse_der().
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001903 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
1904 length of an X.509 verification chain.
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001905 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001906 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
Paul Bakker6152b022015-04-14 15:00:09 +02001907 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001908 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001909 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1910 a compatible enough libc (eg uClibc).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001911 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001912 while using the default ciphersuite list.
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001913 * Added new error codes and debug messages about selection of
1914 ciphersuite/certificate.
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001915
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001916Bugfix
1917 * Stack buffer overflow if ctr_drbg_update() is called with too large
1918 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001919 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
1920 if memory_buffer_alloc_init() was called with buf not aligned and len not
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001921 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
1922 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001923 by Julian Ospald).
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001924 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001925 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1926 multiple of 8 (found by Gergely Budai).
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001927 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1928 Peter Vaskovic).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001929 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001930 * ssl_get_verify_result() now works even if the handshake was aborted due
1931 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001932 * Skip writing and parsing signature_algorithm extension if none of the
1933 key exchanges enabled needs certificates. This fixes a possible interop
1934 issue with some servers when a zero-length extension was sent. (Reported
1935 by Peter Dettman.)
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001936 * On a 0-length input, base64_encode() did not correctly set output length
1937 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001938
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001939Changes
1940 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
1941 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001942 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001943 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001944 * Forbid repeated extensions in X.509 certificates.
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001945 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001946 * A specific error is now returned when there are ciphersuites in common
1947 but none of them is usable due to external factors such as no certificate
Paul Bakkere522d0f2015-01-14 16:12:48 +01001948 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001949 * It is now possible to disable negotiation of truncated HMAC server-side
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001950 at runtime with ssl_set_truncated_hmac().
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001951 * Example programs for SSL client and server now disable SSLv3 by default.
1952 * Example programs for SSL client and server now disable RC4 by default.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001953 * Use platform.h in all test suites and programs.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001954
Paul Bakker9eac4f72014-10-20 13:56:15 +02001955= PolarSSL 1.3.9 released 2014-10-20
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001956Security
1957 * Lowest common hash was selected from signature_algorithms extension in
1958 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001959 * Remotely-triggerable memory leak when parsing some X.509 certificates
Paul Bakkerb082bb52014-10-20 13:37:51 +02001960 (server is not affected if it doesn't ask for a client certificate)
1961 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001962 * Remotely-triggerable memory leak when parsing crafted ClientHello
Paul Bakkerb082bb52014-10-20 13:37:51 +02001963 (not affected if ECC support was compiled out) (found using Codenomicon
1964 Defensics).
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001965
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001966Bugfix
1967 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001968 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001969 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001970 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001971 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001972 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1973 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001974 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001975 * ssl_read() could return non-application data records on server while
1976 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001977 * Server-initiated renegotiation would fail with non-blocking I/O if the
1978 write callback returned WANT_WRITE when requesting renegotiation.
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001979 * ssl_close_notify() could send more than one message in some circumstances
1980 with non-blocking I/O.
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001981 * Fix compiler warnings on iOS (found by Sander Niemeijer).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001982 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001983 * Fix compile error with armcc in mpi_is_prime()
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001984 * Fix potential bad read in parsing ServerHello (found by Adrien
1985 Vialletelle).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001986
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001987Changes
1988 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
1989 standard defining how to use SHA-2 with SSL 3.0).
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001990 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
1991 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02001992 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
1993 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001994 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
1995 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02001996 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
1997 RSA keys.
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02001998 * Accept spaces at end of line or end of buffer in base64_decode().
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001999 * X.509 certificates with more than one AttributeTypeAndValue per
2000 RelativeDistinguishedName are not accepted any more.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02002001
Paul Bakker1910aa72014-07-11 11:28:56 +02002002= PolarSSL 1.3.8 released 2014-07-11
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02002003Security
2004 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2005 It was possible to crash the server (and client) using crafted messages
2006 when a GCM suite was chosen.
2007
Paul Bakkerc6ece492014-05-22 15:45:03 +02002008Features
2009 * Add CCM module and cipher mode to Cipher Layer
2010 * Support for CCM and CCM_8 ciphersuites
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02002011 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
2012 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02002013 * Blowfish in the cipher layer now supports variable length keys.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02002014 * Add example config.h for PSK with CCM, optimized for low RAM usage.
2015 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02002016 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
2017 from the default list (inactive by default).
Paul Bakker23647b42014-07-04 15:00:12 +02002018 * Add server-side enforcement of sent renegotiation requests
2019 (ssl_set_renegotiation_enforced())
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02002020 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
2021 ciphersuites to use and save some memory if the list is small.
Paul Bakkerc6ece492014-05-22 15:45:03 +02002022
Paul Bakker863989b2014-06-12 21:49:01 +02002023Changes
2024 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
2025 required on some platforms (e.g. OpenBSD)
Paul Bakker34617722014-06-13 17:20:13 +02002026 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2027 against unwanted compiler optimizations
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02002028 * md_list() now returns hashes strongest first
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02002029 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
2030 strongest offered by client.
Paul Bakker28476e22014-07-01 15:59:04 +02002031 * All public contexts have _init() and _free() functions now for simpler
2032 usage pattern
Paul Bakker863989b2014-06-12 21:49:01 +02002033
Paul Bakker5593f7c2014-05-06 10:29:28 +02002034Bugfix
2035 * Fix in debug_print_msg()
Paul Bakker1ebc0c52014-05-22 15:47:58 +02002036 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakkerdff31392014-05-22 15:06:41 +02002037 * Remove less-than-zero checks on unsigned numbers
Paul Bakker0f651c72014-05-22 15:12:19 +02002038 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2039 size (found by TrustInSoft)
Paul Bakker49033ba2014-06-12 21:46:13 +02002040 * Fix WSAStartup() return value check (found by Peter Vaskovic)
2041 * Other minor issues (found by Peter Vaskovic)
2042 * Fix symlink command for cross compiling with CMake (found by Andre
2043 Heinecke)
Paul Bakker3c38f292014-06-13 17:37:46 +02002044 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02002045 * Very small records were incorrectly rejected when truncated HMAC was in
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02002046 use with some ciphersuites and versions (RC4 in all versions, CBC with
2047 versions < TLS 1.1).
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02002048 * Very large records using more than 224 bytes of padding were incorrectly
2049 rejected with CBC-based ciphersuites and TLS >= 1.1
2050 * Very large records using less padding could cause a buffer overread of up
2051 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02002052 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
2053 been removed in 1.3.6.)
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02002054 * Restore ability to locally trust a self-signed cert that is not a proper
2055 CA for use as an end entity certificate. (This had been removed in
2056 1.3.6.)
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07002057 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02002058 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2059 interpret semicolons as comment delimiters (found by Barry K. Nathan).
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02002060 * Fix off-by-one error in parsing Supported Point Format extension that
2061 caused some handshakes to fail.
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02002062 * Fix possible miscomputation of the premaster secret with DHE-PSK key
2063 exchange that caused some handshakes to fail with other implementations.
2064 (Failure rate <= 1/255 with common DHM moduli.)
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02002065 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerd5983182014-07-04 13:50:31 +02002066 * Fix base64_decode() to return and check length correctly (in case of
2067 tight buffers)
Paul Bakker6c343d72014-07-10 14:36:19 +02002068 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
2069 by Hui Dong)
Paul Bakker5593f7c2014-05-06 10:29:28 +02002070
Paul Bakker47431b62014-05-02 13:27:13 +02002071= PolarSSL 1.3.7 released on 2014-05-02
Paul Bakkereaebbd52014-04-25 15:04:14 +02002072Features
Paul Bakkerc73079a2014-04-25 16:34:30 +02002073 * debug_set_log_mode() added to determine raw or full logging
2074 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker0f90d7d2014-04-30 11:49:44 +02002075 * version_check_feature() added to check for compile-time options at
2076 run-time
Paul Bakker92478c32014-04-25 15:18:34 +02002077
Paul Bakker088c5c52014-04-25 11:11:10 +02002078Changes
2079 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
2080 checked and filled in the relevant module headers
Paul Bakker92478c32014-04-25 15:18:34 +02002081 * Debug module only outputs full lines instead of parts
Paul Bakker63844402014-04-30 15:34:12 +02002082 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02002083 * AES-NI now compiles with "old" assemblers too
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02002084 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker088c5c52014-04-25 11:11:10 +02002085
Paul Bakkere92f73d2014-04-18 14:08:26 +02002086Bugfix
2087 * Only iterate over actual certificates in ssl_write_certificate_request()
2088 (found by Matthew Page)
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02002089 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
2090 Karger)
Paul Bakkerfdba4682014-04-25 11:48:35 +02002091 * cert_write app should use subject of issuer certificate as issuer of cert
Paul Bakker61885c72014-04-25 12:59:03 +02002092 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
2093 ciphersuites, for full SSL frames of data.
Paul Bakkera7036632014-04-30 10:15:38 +02002094 * Improve interoperability by not writing extension length in ClientHello /
2095 ServerHello when no extensions are present (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02002096 * rsa_check_pubkey() now allows an E up to N
Paul Bakkerf96f7b62014-04-30 16:02:38 +02002097 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakker33dc46b2014-04-30 16:11:39 +02002098 * mpi_fill_random() was creating numbers larger than requested on
2099 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02002100 * Fix dependencies issues in X.509 test suite.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02002101 * Some parts of ssl_tls.c were compiled even when the module was disabled.
Markus Pfeiffera26a0052014-04-22 20:16:15 +00002102 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Barry K. Nathancf975f52014-04-23 17:40:25 -07002103 * Fix detection of Clang on some Apple platforms with CMake
2104 (found by Barry K. Nathan)
Paul Bakkere92f73d2014-04-18 14:08:26 +02002105
Paul Bakker784b04f2014-04-11 15:33:59 +02002106= PolarSSL 1.3.6 released on 2014-04-11
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002107
Paul Bakker27e36d32014-04-08 12:33:37 +02002108Features
2109 * Support for the ALPN SSL extension
Paul Bakker1cfc4582014-04-09 15:25:13 +02002110 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002111 * Enable verification of the keyUsage extension for CA and leaf
Paul Bakker59366212014-04-09 15:55:20 +02002112 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002113 * Enable verification of the extendedKeyUsage extension
2114 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker27e36d32014-04-08 12:33:37 +02002115
Paul Bakker4984d3c2014-04-04 15:39:37 +02002116Changes
2117 * x509_crt_info() now prints information about parsed extensions as well
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02002118 * pk_verify() now returns a specific error code when the signature is valid
2119 but shorter than the supplied length.
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02002120 * Use UTC time to check certificate validity.
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02002121 * Reject certificates with times not in UTC, per RFC 5280.
Paul Bakker4984d3c2014-04-04 15:39:37 +02002122
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002123Security
2124 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
2125 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02002126 * The notAfter date of some certificates was no longer checked since 1.3.5.
2127 This affects certificates in the user-supplied chain except the top
2128 certificate. If the user-supplied chain contains only one certificates,
2129 it is not affected (ie, its notAfter date is properly checked).
Paul Bakker4224bc02014-04-08 14:36:50 +02002130 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2131 TrustInSoft)
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002132
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002133Bugfix
2134 * The length of various ClientKeyExchange messages was not properly checked.
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01002135 * Some example server programs were not sending the close_notify alert.
Paul Bakker75a28602014-03-31 12:08:17 +02002136 * Potential memory leak in mpi_exp_mod() when error occurs during
2137 calculation of RR.
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02002138 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02002139 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
2140 Gergely Budai).
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02002141 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
2142 (found by Gergely Budai)
Shuo Chen95a0d112014-04-04 21:04:40 -07002143 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
2144 Shuo Chen).
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01002145 * oid_get_numeric_string() used to truncate the output without returning an
2146 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01002147 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02002148 * Calling pk_debug() on an RSA-alt key would segfault.
2149 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
Paul Bakker16300582014-04-11 13:28:43 +02002150 * Potential buffer overwrite in pem_write_buffer() because of low length
2151 indication (found by Thijs Alkemade)
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02002152 * EC curves constants, which should be only in ROM since 1.3.3, were also
2153 stored in RAM due to missing 'const's (found by Gergely Budai).
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002154
Paul Bakker96d52652014-03-26 16:55:50 +01002155= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002156Features
2157 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002158 * Option to set the Curve preference order (disabled by default)
Paul Bakker6a28e722014-02-06 13:41:55 +01002159 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakkerf2561b32014-02-06 15:11:55 +01002160 * Ability to provide alternate timing implementation
Paul Bakker2ceda572014-02-06 15:55:25 +01002161 * Ability to force the entropy module to use SHA-256 as its basis
2162 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002163 * Testing script ssl-opt.sh added for testing 'live' ssl option
2164 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01002165 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Paul Bakker66ff70d2014-03-26 11:54:05 +01002166 * Entropy module now supports seed writing and reading
Paul Bakker6a28e722014-02-06 13:41:55 +01002167
2168Changes
2169 * Deprecated the Memory layer
Paul Bakker47703a02014-02-06 15:01:20 +01002170 * entropy_add_source(), entropy_update_manual() and entropy_gather()
2171 now thread-safe if POLARSSL_THREADING_C defined
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01002172 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01002173 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2174 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002175 * Revamped the compat.sh interoperatibility script to include support for
2176 testing against GnuTLS
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002177 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Paul Bakker674e0b02014-03-26 13:26:52 +01002178 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002179
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002180Security
2181 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01002182 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002183 attack was already impossible when authentication is required).
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01002184 * Check notBefore timestamp of certificates and CRLs from the future.
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01002185 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002186 * Fixed possible buffer overflow with overlong PSK
Paul Bakker91c61bc2014-03-26 14:06:55 +01002187 * Possible remotely-triggered out-of-bounds memory access fixed (found by
2188 TrustInSoft)
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002189
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002190Bugfix
2191 * ecp_gen_keypair() does more tries to prevent failure because of
2192 statistics
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002193 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Paul Bakkercd6d69a2014-02-06 15:43:21 +01002194 * Fixed testing with out-of-source builds using cmake
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01002195 * Fixed version-major intolerance in server
Paul Bakker3d52ab72014-03-07 10:33:55 +01002196 * Fixed CMake symlinking on out-of-source builds
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01002197 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01002198 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Alex Wilson73491422014-03-06 00:04:09 +10002199 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2200 Alex Wilson.)
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002201 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
2202 * m_sleep() was sleeping twice too long on most Unix platforms.
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01002203 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002204 send() would return an EAGAIN error when sending the ticket.
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002205 * ssl_cache was leaking memory when reusing a timed out entry containing a
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002206 client certificate.
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01002207 * ssl_srv was leaking memory when client presented a timed out ticket
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002208 containing a client certificate
Paul Bakker3d6504a2014-03-17 13:41:51 +01002209 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2210 out_ctr failed
Paul Bakker77f4f392014-03-26 15:28:55 +01002211 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2212 of one of them failed
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01002213 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakker5fff23b2014-03-26 15:34:54 +01002214 * x509_get_current_time() uses localtime_r() to prevent thread issues
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002215
Paul Bakker2aca2412014-01-27 11:49:46 +01002216= PolarSSL 1.3.4 released on 2014-01-27
Paul Bakker3eb96732014-01-22 13:08:19 +01002217Features
Paul Bakker0ac99ca2014-01-22 13:08:44 +01002218 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakker5862eee2014-01-22 14:18:03 +01002219 * Support for RIPEMD-160
Paul Bakker556efba2014-01-24 15:38:12 +01002220 * Support for AES CFB8 mode
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01002221 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker3eb96732014-01-22 13:08:19 +01002222
2223Bugfix
2224 * Potential memory leak in bignum_selftest()
2225 * Replaced expired test certificate
Paul Bakkerd75ba402014-01-24 16:11:17 +01002226 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakkerb84582b2014-01-27 12:23:43 +01002227 * net module handles timeouts on blocking sockets better (found by Tilman
2228 Sauerbeck)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01002229 * Assembly format fixes in bn_mul.h
2230
2231Security
Paul Bakkerb84582b2014-01-27 12:23:43 +01002232 * Missing MPI_CHK calls added around unguarded mpi calls (found by
2233 TrustInSoft)
Paul Bakker3eb96732014-01-22 13:08:19 +01002234
Paul Bakker5bc07a32013-12-31 10:57:44 +01002235= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker014f1432013-12-02 14:54:01 +01002236Features
2237 * EC key generation support in gen_key app
Paul Bakker9dc53a92013-12-02 14:55:28 +01002238 * Support for adhering to client ciphersuite order preference
2239 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
Paul Bakker48d78a52013-12-05 16:11:38 +01002240 * Support for Curve25519
Paul Bakkerfdf94692013-12-17 13:09:31 +01002241 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
Paul Bakker5a607d22013-12-17 14:33:42 +01002242 * Support for IPv6 in the NET module
Paul Bakker23116fd2013-12-30 14:09:47 +01002243 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakkerf9c49532013-12-19 15:40:58 +01002244 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakker014f1432013-12-02 14:54:01 +01002245
Paul Bakker7aa03752013-11-26 17:37:31 +01002246Changes
2247 * gen_prime() speedup
2248 * Speedup of ECP multiplication operation
2249 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerc3d0d072013-12-02 14:50:49 +01002250 * Dropped use of readdir_r() instead of readdir() with threading support
Paul Bakker4040d7e2013-12-02 14:52:57 +01002251 * More constant-time checks in the RSA module
Paul Bakkerb14817d2013-12-02 22:03:23 +01002252 * Split off curves from ecp.c into ecp_curves.c
Paul Bakker5ab68ba2013-12-17 13:10:48 +01002253 * Curves are now stored fully in ROM
Paul Bakkerc7387912013-12-31 10:32:50 +01002254 * Memory usage optimizations in ECP module
Paul Bakkera8fd3e32013-12-31 11:54:08 +01002255 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker7aa03752013-11-26 17:37:31 +01002256
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002257Bugfix
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01002258 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002259 * Fixed X.509 hostname comparison (with non-regular characters)
Paul Bakkera9a028e2013-11-21 17:31:06 +01002260 * SSL now gracefully handles missing RNG
Paul Bakker7aa03752013-11-26 17:37:31 +01002261 * Missing defines / cases for RSA_PSK key exchange
2262 * crypt_and_hash app checks MAC before final decryption
Paul Bakker6f0636a2013-12-16 15:24:05 +01002263 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakkerf70fe812013-12-16 16:43:10 +01002264 * Memory leak in benchmark application
Paul Bakker1a56fc92013-12-19 13:51:24 +01002265 * Fixed x509_crt_parse_path() bug on Windows platforms
Paul Bakker6ea1a952013-12-31 11:16:03 +01002266 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2267 TrustInSoft)
Paul Bakker6992eb72013-12-31 11:35:16 +01002268 * Fixed potential overflow in certificate size verification in
2269 ssl_write_certificate() (found by TrustInSoft)
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002270
Paul Bakker956c9e02013-12-19 14:42:28 +01002271Security
2272 * Possible remotely-triggered out-of-bounds memory access fixed (found by
2273 TrustInSoft)
2274
Paul Bakkerf4dc1862013-11-04 17:29:42 +01002275= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakker08bb1872013-10-28 14:03:26 +01002276Features
2277 * PK tests added to test framework
Paul Bakker3f917e22013-10-28 14:16:59 +01002278 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker16421222013-10-28 14:37:09 +01002279 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker08bb1872013-10-28 14:03:26 +01002280
Paul Bakker7bc745b2013-10-28 14:39:49 +01002281Changes
2282 * Padding checks in cipher layer are now constant-time
Paul Bakkere1121b62013-10-31 14:37:37 +01002283 * Value comparisons in SSL layer are now constant-time
Paul Bakker7b0be682013-10-29 14:24:37 +01002284 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakkere1121b62013-10-31 14:37:37 +01002285 * SSL Renegotiation was refactored
Paul Bakker7bc745b2013-10-28 14:39:49 +01002286
Paul Bakker677377f2013-10-28 12:54:26 +01002287Bugfix
Paul Bakker16421222013-10-28 14:37:09 +01002288 * More stringent checks in cipher layer
Paul Bakker677377f2013-10-28 12:54:26 +01002289 * Server does not send out extensions not advertised by client
Paul Bakker45a2c8d2013-10-28 12:57:08 +01002290 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker68037da2013-10-28 14:02:40 +01002291 * Misc fixes and additions to dependency checks
Paul Bakker50dc8502013-10-28 21:19:10 +01002292 * Const correctness
Paul Bakker93c6aa42013-10-28 22:28:09 +01002293 * cert_write with selfsign should use issuer_name as subject_name
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01002294 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerfa6a6202013-10-28 18:48:30 +01002295 * Defines to handle UEFI environment under MSVC
Paul Bakkere1121b62013-10-31 14:37:37 +01002296 * Server-side initiated renegotiations send HelloRequest
Paul Bakker677377f2013-10-28 12:54:26 +01002297
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002298= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakkerb799dec2013-10-11 10:03:27 +02002299Features
2300 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakker376e8152013-10-15 12:44:23 +02002301 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerf34673e2013-10-15 12:46:17 +02002302 * Support for RSA-PSK key-exchange and ciphersuites
Paul Bakkerb799dec2013-10-11 10:03:27 +02002303
Paul Bakkerddba8822013-10-11 09:21:56 +02002304Changes
2305 * RSA blinding locks for a smaller amount of time
Paul Bakker16770332013-10-11 09:59:44 +02002306 * TLS compression only allocates working buffer once
Paul Bakkerbe089b02013-10-14 15:51:50 +02002307 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkera7ea6a52013-10-15 11:55:10 +02002308 * config.h is more script-friendly
Paul Bakkerddba8822013-10-11 09:21:56 +02002309
2310Bugfix
2311 * Missing MSVC defines added
2312 * Compile errors with POLARSSL_RSA_NO_CRT
2313 * Header files with 'polarssl/'
Paul Bakkerfcc17212013-10-11 09:36:52 +02002314 * Const correctness
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02002315 * Possible naming collision in dhm_context
Paul Bakker4aa40d42013-10-11 10:49:24 +02002316 * Better support for MSVC
Paul Bakkerb7c13122013-10-11 10:51:32 +02002317 * threading_set_alt() name
Paul Bakker5191e922013-10-11 10:54:28 +02002318 * Added missing x509write_crt_set_version()
Paul Bakkerddba8822013-10-11 09:21:56 +02002319
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002320= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker41c83d32013-03-20 14:39:14 +01002321Features
2322 * Elliptic Curve Cryptography module added
2323 * Elliptic Curve Diffie Hellman module added
2324 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
2325 (ECDHE-based ciphersuites)
Paul Bakkerc8676782013-08-28 12:15:11 +02002326 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
2327 (ECDSA-based ciphersuites)
Paul Bakker8f4ddae2013-04-15 15:09:54 +02002328 * Ability to specify allowed ciphersuites based on the protocol version.
Paul Bakkerb91c2b52013-04-19 16:05:16 +02002329 * PSK and DHE-PSK based ciphersuites added
Paul Bakker6e339b52013-07-03 13:37:05 +02002330 * Memory allocation abstraction layer added
2331 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
Paul Bakker2466d932013-09-28 14:40:38 +02002332 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002333 * Public Key abstraction layer added
Paul Bakkerf85778e2013-07-19 14:55:25 +02002334 * Parsing Elliptic Curve keys
2335 * Parsing Elliptic Curve certificates
2336 * Support for max_fragment_length extension (RFC 6066)
2337 * Support for truncated_hmac extension (RFC 6066)
Paul Bakkerda4d1c32013-08-14 12:24:34 +02002338 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
2339 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
Paul Bakker936539a2013-08-14 13:49:20 +02002340 * Support for session tickets (RFC 5077)
Paul Bakkerca174fe2013-08-28 16:31:30 +02002341 * Certificate Request (CSR) generation with extensions (key_usage,
2342 ns_cert_type)
Paul Bakker7fb4a792013-09-12 12:00:52 +02002343 * X509 Certificate writing with extensions (basic_constraints,
2344 issuer_key_identifier, etc)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02002345 * Optional blinding for RSA, DHM and EC
Paul Bakker8b817dc2013-09-25 18:03:58 +02002346 * Support for multiple active certificate / key pairs in SSL servers for
Darryl Green11999bb2018-03-13 15:22:58 +00002347 the same host (Not to be confused with SNI!)
Paul Bakker41c83d32013-03-20 14:39:14 +01002348
Paul Bakker9b5798d2013-03-13 13:53:00 +01002349Changes
Paul Bakkerd2f068e2013-08-27 21:19:20 +02002350 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
2351 individually
Paul Bakker68884e32013-01-07 18:20:04 +01002352 * Introduced separate SSL Ciphersuites module that is based on
2353 Cipher and MD information
Paul Bakker9b5798d2013-03-13 13:53:00 +01002354 * Internals for SSL module adapted to have separate IV pointer that is
2355 dynamically set (Better support for hardware acceleration)
Paul Bakkerc70b9822013-04-07 22:00:46 +02002356 * Moved all OID functionality to a separate module. RSA function
2357 prototypes for the RSA sign and verify functions changed as a result
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02002358 * Split up the GCM module into a starts/update/finish cycle
Paul Bakker2fbefde2013-06-29 16:01:15 +02002359 * Client and server now filter sent and accepted ciphersuites on minimum
2360 and maximum protocol version
Paul Bakker0be444a2013-08-27 21:55:01 +02002361 * Ability to disable server_name extension (RFC 6066)
Paul Bakkere2ab84f2013-06-29 18:24:32 +02002362 * Renamed error_strerror() to the less conflicting polarssl_strerror()
2363 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9e36f042013-06-30 14:34:05 +02002364 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakker548957d2013-08-30 10:30:02 +02002365 * All RSA operations require a random generator for blinding purposes
Paul Bakker45f21c72013-09-18 15:33:49 +02002366 * X509 core refactored
2367 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002368 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02002369 * Support faulty X509 v1 certificates with extensions
2370 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakker9b5798d2013-03-13 13:53:00 +01002371
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002372Bugfix
Paul Bakker73d44312013-05-22 13:56:26 +02002373 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02002374 * zlib compression/decompression skipped on empty blocks
Paul Bakker1e6a1752013-07-26 14:10:22 +02002375 * Support for AIX header locations in net.c module
Paul Bakker003dbad2013-09-09 17:26:14 +02002376 * Fixed file descriptor leaks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002377
Paul Bakkeraab30c12013-08-30 11:00:25 +02002378Security
2379 * RSA blinding on CRT operations to counter timing attacks
2380 (found by Cyril Arnaud and Pierre-Alain Fouque)
2381
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02002382
2383= Version 1.2.14 released 2015-05-??
2384
2385Security
2386 * Fix potential invalid memory read in the server, that allows a client to
2387 crash it remotely (found by Caj Larsson).
2388 * Fix potential invalid memory read in certificate parsing, that allows a
2389 client to crash the server remotely if client authentication is enabled
2390 (found using Codenomicon Defensics).
2391 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
2392 https://dl.acm.org/citation.cfm?id=2714625
2393
2394Bugfix
2395 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
2396 * Fix hardclock() (only used in the benchmarking program) with some
2397 versions of mingw64 (found by kxjhlele).
2398 * Fix warnings from mingw64 in timing.c (found by kxjklele).
2399 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
2400 platforms (found with Coverity Scan).
2401
2402= Version 1.2.13 released 2015-02-16
2403Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
2404 this will be made in the 1.2 branch at this point.
2405
2406Security
2407 * Fix remotely-triggerable uninitialised pointer dereference caused by
2408 crafted X.509 certificate (TLS server is not affected if it doesn't ask
2409 for a client certificate) (found using Codenomicon Defensics).
2410 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
2411 (TLS server is not affected if it doesn't ask for a client certificate)
2412 (found using Codenomicon Defensics).
2413 * Fix potential stack overflow while parsing crafted X.509 certificates
2414 (TLS server is not affected if it doesn't ask for a client certificate)
2415 found using Codenomicon Defensics).
2416 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
2417 (TLS server is not affected if it doesn't ask for a client certificate).
2418
2419Bugfix
2420 * Fix potential undefined behaviour in Camellia.
2421 * Fix memory leaks in PKCS#5 and PKCS#12.
2422 * Stack buffer overflow if ctr_drbg_update() is called with too large
2423 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
2424 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
2425 in 1.2.12).
2426 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
2427 Peter Vaskovic).
2428 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
2429 * ssl_get_verify_result() now works even if the handshake was aborted due
2430 to a failed verification (found by Fredrik Axelsson).
2431 * Skip writing and parsing signature_algorithm extension if none of the
2432 key exchanges enabled needs certificates. This fixes a possible interop
2433 issue with some servers when a zero-length extension was sent. (Reported
2434 by Peter Dettman.)
2435 * On a 0-length input, base64_encode() did not correctly set output length
2436 (found by Hendrik van den Boogaard).
2437
2438Changes
2439 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
2440 * Forbid repeated extensions in X.509 certificates.
2441 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
2442 length of an X.509 verification chain (default = 8).
Paul Bakkera6c5ea22014-10-24 16:26:29 +02002443= Version 1.2.12 released 2014-10-24
2444
2445Security
2446 * Remotely-triggerable memory leak when parsing some X.509 certificates
2447 (server is not affected if it doesn't ask for a client certificate).
2448 (Found using Codenomicon Defensics.)
2449
2450Bugfix
2451 * Fix potential bad read in parsing ServerHello (found by Adrien
2452 Vialletelle).
2453 * ssl_close_notify() could send more than one message in some circumstances
2454 with non-blocking I/O.
2455 * x509_crt_parse() did not increase total_failed on PEM error
2456 * Fix compiler warnings on iOS (found by Sander Niemeijer).
2457 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
2458 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
2459 * ssl_read() could return non-application data records on server while
2460 renegotation was pending, and on client when a HelloRequest was received.
2461 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
2462
2463Changes
2464 * X.509 certificates with more than one AttributeTypeAndValue per
2465 RelativeDistinguishedName are not accepted any more.
2466 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2467 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
2468 * Accept spaces at end of line or end of buffer in base64_decode().
2469
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02002470= Version 1.2.11 released 2014-07-11
2471Features
2472 * Entropy module now supports seed writing and reading
2473
2474Changes
2475 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
2476 * Improvements to the CMake build system, contributed by Julian Ospald.
2477 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2478 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
2479 * Improvements to tests/Makefile, contributed by Oden Eriksson.
2480 * Use UTC time to check certificate validity.
2481 * Reject certificates with times not in UTC, per RFC 5280.
2482 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2483 against unwanted compiler optimizations
2484
2485Security
2486 * Forbid change of server certificate during renegotiation to prevent
2487 "triple handshake" attack when authentication mode is optional (the
2488 attack was already impossible when authentication is required).
2489 * Check notBefore timestamp of certificates and CRLs from the future.
2490 * Forbid sequence number wrapping
2491 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2492 TrustInSoft)
2493 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2494 It was possible to crash the server (and client) using crafted messages
2495 when a GCM suite was chosen.
2496
2497Bugfix
2498 * Fixed X.509 hostname comparison (with non-regular characters)
2499 * SSL now gracefully handles missing RNG
2500 * crypt_and_hash app checks MAC before final decryption
2501 * Fixed x509_crt_parse_path() bug on Windows platforms
2502 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2503 TrustInSoft)
2504 * Fixed potential overflow in certificate size verification in
2505 ssl_write_certificate() (found by TrustInSoft)
2506 * Fix ASM format in bn_mul.h
2507 * Potential memory leak in bignum_selftest()
2508 * Replaced expired test certificate
2509 * ssl_mail_client now terminates lines with CRLF, instead of LF
2510 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
2511 * Fixed testing with out-of-source builds using cmake
2512 * Fixed version-major intolerance in server
2513 * Fixed CMake symlinking on out-of-source builds
2514 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2515 Alex Wilson.)
2516 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2517 out_ctr failed
2518 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2519 of one of them failed
2520 * x509_get_current_time() uses localtime_r() to prevent thread issues
2521 * Some example server programs were not sending the close_notify alert.
2522 * Potential memory leak in mpi_exp_mod() when error occurs during
2523 calculation of RR.
2524 * Improve interoperability by not writing extension length in ClientHello
2525 when no extensions are present (found by Matthew Page)
2526 * rsa_check_pubkey() now allows an E up to N
2527 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
2528 * mpi_fill_random() was creating numbers larger than requested on
2529 big-endian platform when size was not an integer number of limbs
2530 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
2531 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2532 size (found by TrustInSoft)
2533 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
2534 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2535 interpret semicolons as comment delimiters (found by Barry K. Nathan).
2536 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
2537 * Fix base64_decode() to return and check length correctly (in case of
2538 tight buffers)
2539
Paul Bakker3a2c0562013-10-07 16:22:05 +02002540= Version 1.2.10 released 2013-10-07
2541Changes
2542 * Changed RSA blinding to a slower but thread-safe version
2543
2544Bugfix
2545 * Fixed memory leak in RSA as a result of introduction of blinding
2546 * Fixed ssl_pkcs11_decrypt() prototype
2547 * Fixed MSVC project files
2548
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002549= Version 1.2.9 released 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002550Changes
2551 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
2552
2553Bugfix
2554 * Fixed potential memory leak when failing to resume a session
2555 * Fixed potential file descriptor leaks (found by Remi Gacogne)
2556 * Minor fixes
2557
2558Security
2559 * Fixed potential heap buffer overflow on large hostname setting
2560 * Fixed potential negative value misinterpretation in load_file()
2561 * RSA blinding on CRT operations to counter timing attacks
2562 (found by Cyril Arnaud and Pierre-Alain Fouque)
2563
Paul Bakkerde656232013-06-24 19:07:34 +02002564= Version 1.2.8 released 2013-06-19
2565Features
2566 * Parsing of PKCS#8 encrypted private key files
2567 * PKCS#12 PBE and derivation functions
2568 * Centralized module option values in config.h to allow user-defined
2569 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
2570
2571Changes
2572 * HAVEGE random generator disabled by default
2573 * Internally split up x509parse_key() into a (PEM) handler function
2574 and specific DER parser functions for the PKCS#1 and unencrypted
2575 PKCS#8 private key formats
2576 * Added mechanism to provide alternative implementations for all
2577 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
Darryl Green11999bb2018-03-13 15:22:58 +00002578 config.h)
Paul Bakkerde656232013-06-24 19:07:34 +02002579 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
2580 old PBKDF2 module
2581
2582Bugfix
2583 * Secure renegotiation extension should only be sent in case client
2584 supports secure renegotiation
2585 * Fixed offset for cert_type list in ssl_parse_certificate_request()
2586 * Fixed const correctness issues that have no impact on the ABI
2587 * x509parse_crt() now better handles PEM error situations
2588 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2589 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00002590 certificates
Paul Bakkerde656232013-06-24 19:07:34 +02002591 * x509parse_crtpath() is now reentrant and uses more portable stat()
2592 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
2593 * Fixed values for 2-key Triple DES in cipher layer
2594 * ssl_write_certificate_request() can handle empty ca_chain
2595
2596Security
2597 * A possible DoS during the SSL Handshake, due to faulty parsing of
2598 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2599
2600= Version 1.2.7 released 2013-04-13
2601Features
2602 * Ability to specify allowed ciphersuites based on the protocol version.
2603
2604Changes
2605 * Default Blowfish keysize is now 128-bits
2606 * Test suites made smaller to accommodate Raspberry Pi
2607
2608Bugfix
2609 * Fix for MPI assembly for ARM
2610 * GCM adapted to support sizes > 2^29
2611
Paul Bakker90f042d2013-03-11 11:38:44 +01002612= Version 1.2.6 released 2013-03-11
Paul Bakkerc0463502013-02-14 11:19:38 +01002613Bugfix
2614 * Fixed memory leak in ssl_free() and ssl_reset() for active session
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01002615 * Corrected GCM counter incrementation to use only 32-bits instead of
2616 128-bits (found by Yawning Angel)
Paul Bakkere3e4a592013-02-28 10:20:53 +01002617 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakker37286a52013-03-06 16:55:11 +01002618 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01002619 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakkerc0463502013-02-14 11:19:38 +01002620
Paul Bakkerb3869132013-02-28 17:21:01 +01002621Changes
2622 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
2623 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
2624 PKCS#1 v2.1 functions
Paul Bakkera43231c2013-02-28 17:33:49 +01002625 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
2626 or rsa_rsaes_oaep_decrypt()
Paul Bakker78a8c712013-03-06 17:01:52 +01002627 * Re-added handling for SSLv2 Client Hello when the define
2628 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkere81beda2013-03-06 17:40:46 +01002629 * The SSL session cache module (ssl_cache) now also retains peer_cert
2630 information (not the entire chain)
Paul Bakkerb3869132013-02-28 17:21:01 +01002631
Paul Bakkere47b34b2013-02-27 14:48:00 +01002632Security
2633 * Removed further timing differences during SSL message decryption in
2634 ssl_decrypt_buf()
Paul Bakker8804f692013-02-28 18:06:26 +01002635 * Removed timing differences due to bad padding from
2636 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2637 operations
Paul Bakkere47b34b2013-02-27 14:48:00 +01002638
Paul Bakkerc7a2da42013-02-02 19:23:57 +01002639= Version 1.2.5 released 2013-02-02
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002640Changes
2641 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakkerd66f0702013-01-31 16:57:45 +01002642 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01002643 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker40865c82013-01-31 17:13:13 +01002644 * Sending of security-relevant alert messages that do not break
2645 interoperability can be switched on/off with the flag
Paul Bakkera35aa542013-03-06 17:06:21 +01002646 POLARSSL_SSL_ALL_ALERT_MESSAGES
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002647
Paul Bakker45829992013-01-03 14:52:21 +01002648Security
2649 * Removed timing differences during SSL message decryption in
2650 ssl_decrypt_buf() due to badly formatted padding
2651
Paul Bakker14c56a32013-01-25 17:11:37 +01002652= Version 1.2.4 released 2013-01-25
Paul Bakker1961b702013-01-25 14:49:24 +01002653Changes
Paul Bakker68884e32013-01-07 18:20:04 +01002654 * More advanced SSL ciphersuite representation and moved to more dynamic
2655 SSL core
Paul Bakker1961b702013-01-25 14:49:24 +01002656 * Added ssl_handshake_step() to allow single stepping the handshake process
2657
Paul Bakker40628ba2013-01-03 10:50:31 +01002658Bugfix
2659 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakker21dca692013-01-03 11:41:08 +01002660 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker9c94cdd2013-01-22 13:45:33 +01002661 * Correctly handle CertificateRequest message in client for <= TLS 1.1
2662 without DN list
Paul Bakker40628ba2013-01-03 10:50:31 +01002663
Paul Bakkerfb1ba782012-11-26 16:28:25 +01002664= Version 1.2.3 released 2012-11-26
2665Bugfix
2666 * Server not always sending correct CertificateRequest message
2667
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002668= Version 1.2.2 released 2012-11-24
Paul Bakkere667c982012-11-20 13:50:22 +01002669Changes
2670 * Added p_hw_data to ssl_context for context specific hardware acceleration
2671 data
Hanno Becker01a0e072017-07-26 11:49:40 +01002672 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkere667c982012-11-20 13:50:22 +01002673
Paul Bakker7c90da92012-11-23 14:02:40 +01002674Bugfixes
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002675 * Fixed client authentication compatibility
2676 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker7c90da92012-11-23 14:02:40 +01002677
Paul Bakker14926332012-11-20 10:58:09 +01002678= Version 1.2.1 released 2012-11-20
Paul Bakker34d8dbc2012-11-14 12:11:38 +00002679Changes
2680 * Depth that the certificate verify callback receives is now numbered
2681 bottom-up (Peer cert depth is 0)
2682
Paul Bakker7a2538e2012-11-02 10:59:36 +00002683Bugfixes
2684 * Fixes for MSVC6
Paul Bakkerd9374b02012-11-02 11:02:58 +00002685 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakkerf02c5642012-11-13 10:25:21 +00002686 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2687 Pégourié-Gonnard)
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01002688 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2689 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00002690 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakker7a2538e2012-11-02 10:59:36 +00002691
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002692= Version 1.2.0 released 2012-10-31
Paul Bakkerfab5c822012-02-06 16:45:10 +00002693Features
2694 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
2695 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
2696 default!
Paul Bakkera8cd2392012-02-11 16:09:32 +00002697 * Added support for wildcard certificates
2698 * Added support for multi-domain certificates through the X509 Subject
2699 Alternative Name extension
Paul Bakkerbdb912d2012-02-13 23:11:30 +00002700 * Added preliminary ASN.1 buffer writing support
2701 * Added preliminary X509 Certificate Request writing support
2702 * Added key_app_writer example application
2703 * Added cert_req example application
Paul Bakker89e80c92012-03-20 13:50:09 +00002704 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker48916f92012-09-16 19:57:18 +00002705 * Added TLS 1.2 support (RFC 5246)
Paul Bakkerca4ab492012-04-18 14:23:57 +00002706 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker01cc3942012-05-08 08:36:15 +00002707 * Added commandline error code convertor (util/strerror)
Paul Bakker05ef8352012-05-08 09:17:57 +00002708 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002709 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002710 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker8d914582012-06-04 12:46:42 +00002711 * Added X509 CA Path support
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00002712 * Added Thumb assembly optimizations
Paul Bakker2770fbd2012-07-03 13:30:23 +00002713 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002714 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakkerf518b162012-08-23 13:03:18 +00002715 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker48916f92012-09-16 19:57:18 +00002716 * Added Secure Renegotiation (RFC 5746)
Paul Bakker29b64762012-09-25 09:36:44 +00002717 * Added predefined DHM groups from RFC 5114
Paul Bakker0a597072012-09-25 21:55:46 +00002718 * Added simple SSL session cache implementation
Paul Bakker5701cdc2012-09-27 21:49:42 +00002719 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1d29fb52012-09-28 13:28:45 +00002720 * Added option to add minimum accepted SSL/TLS protocol version
Paul Bakkerfab5c822012-02-06 16:45:10 +00002721
Paul Bakker1504af52012-02-11 16:17:43 +00002722Changes
2723 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker048d04e2012-02-12 17:31:04 +00002724 * AES code only check for Padlock once
Paul Bakker6b906e52012-05-08 12:01:43 +00002725 * Fixed const-correctness mpi_get_bit()
2726 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker186751d2012-05-08 13:16:14 +00002727 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker4d2c1242012-05-10 14:12:46 +00002728 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakker5b377842012-05-16 07:57:36 +00002729 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002730 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
2731 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkerec636f32012-09-09 19:17:02 +00002732 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker0a597072012-09-25 21:55:46 +00002733 * Revamped session resumption handling
Paul Bakkereb2c6582012-09-27 19:15:01 +00002734 * Generalized external private key implementation handling (like PKCS#11)
2735 in SSL/TLS
Paul Bakker915275b2012-09-28 07:10:55 +00002736 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker5c2364c2012-10-01 14:41:15 +00002737 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker645ce3a2012-10-31 12:32:41 +00002738 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker1504af52012-02-11 16:17:43 +00002739
Paul Bakker37824582012-03-22 14:10:22 +00002740Bugfix
Paul Bakker7beceb22012-03-22 14:19:49 +00002741 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2742 Hui Dong)
Paul Bakker430ffbe2012-05-01 08:14:20 +00002743 * Fixed potential heap corruption in x509_name allocation
Paul Bakker5b377842012-05-16 07:57:36 +00002744 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkerf6198c12012-05-16 08:02:29 +00002745 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2746 #52)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002747 * Handle encryption with private key and decryption with public key as per
Darryl Green11999bb2018-03-13 15:22:58 +00002748 RFC 2313
Paul Bakkercefb3962012-06-27 11:51:09 +00002749 * Handle empty certificate subject names
Paul Bakker535e97d2012-08-23 10:49:55 +00002750 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00002751 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker995a2152012-09-25 08:19:56 +00002752 with carry rollover (found by Ruslan Yushchenko)
Paul Bakkerb00ca422012-09-25 12:10:00 +00002753 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker4f024b72012-10-30 07:29:57 +00002754 * Fixed MPI assembly for SPARC64 platform
Paul Bakker37824582012-03-22 14:10:22 +00002755
Paul Bakker452d5322012-04-05 12:07:34 +00002756Security
Paul Bakker3c16db92012-07-05 13:58:08 +00002757 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2758 Vanderbeken)
Paul Bakker452d5322012-04-05 12:07:34 +00002759
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002760= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002761Bugfix
2762 * Fixed potential memory leak when failing to resume a session
2763 * Fixed potential file descriptor leaks
2764
2765Security
2766 * Potential buffer-overflow for ssl_read_record() (independently found by
2767 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
2768 * Potential negative value misinterpretation in load_file()
2769 * Potential heap buffer overflow on large hostname setting
2770
Paul Bakker248fff52013-06-24 19:08:50 +02002771= Version 1.1.7 released on 2013-06-19
2772Changes
2773 * HAVEGE random generator disabled by default
2774
2775Bugfix
2776 * x509parse_crt() now better handles PEM error situations
2777 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2778 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00002779 certificates
Paul Bakker248fff52013-06-24 19:08:50 +02002780 * Fixed values for 2-key Triple DES in cipher layer
2781 * ssl_write_certificate_request() can handle empty ca_chain
2782
2783Security
2784 * A possible DoS during the SSL Handshake, due to faulty parsing of
2785 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2786
2787= Version 1.1.6 released on 2013-03-11
2788Bugfix
2789 * Fixed net_bind() for specified IP addresses on little endian systems
2790
2791Changes
2792 * Allow enabling of dummy error_strerror() to support some use-cases
2793 * Debug messages about padding errors during SSL message decryption are
2794 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
2795
2796Security
2797 * Removed timing differences during SSL message decryption in
2798 ssl_decrypt_buf()
2799 * Removed timing differences due to bad padding from
2800 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2801 operations
2802
Paul Bakker9d2bb652013-01-25 16:07:49 +01002803= Version 1.1.5 released on 2013-01-16
2804Bugfix
2805 * Fixed MPI assembly for SPARC64 platform
2806 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
2807 * mpi_add_abs() now correctly handles adding short numbers to long numbers
2808 with carry rollover
2809 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
2810 * Prevent reading over buffer boundaries on X509 certificate parsing
2811 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2812 #52)
2813 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2814 Pégourié-Gonnard)
2815 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2816 Pégourié-Gonnard)
2817 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2818 * Memory leak when using RSA_PKCS_V21 operations fixed
2819 * Handle encryption with private key and decryption with public key as per
2820 RFC 2313
2821 * Fixes for MSVC6
2822
2823Security
2824 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2825 Vanderbeken)
2826
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002827= Version 1.1.4 released on 2012-05-31
2828Bugfix
2829 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2830 * Fixed potential heap corruption in x509_name allocation
2831 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2832
Paul Bakkerfad38932012-05-08 09:04:04 +00002833= Version 1.1.3 released on 2012-04-29
2834Bugfix
2835 * Fixed random MPI generation to not generate more size than requested.
2836
2837= Version 1.1.2 released on 2012-04-26
2838Bugfix
2839 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2840 Hui Dong)
2841
2842Security
2843 * Fixed potential memory corruption on miscrafted client messages (found by
2844 Frama-C team at CEA LIST)
2845 * Fixed generation of DHM parameters to correct length (found by Ruslan
2846 Yushchenko)
2847
Paul Bakker99955bf2012-01-23 09:31:41 +00002848= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002849Bugfix
2850 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2851 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002852 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002853 * Fixed multiple compiler warnings for VS6 and armcc
2854 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002855
Paul Bakker08a50882011-12-22 09:43:57 +00002856= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002857Features
2858 * Added ssl_session_reset() to allow better multi-connection pools of
2859 SSL contexts without needing to set all non-connection-specific
Darryl Green11999bb2018-03-13 15:22:58 +00002860 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002861 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2862 supported version to a server to help buggy server implementations.
Darryl Green11999bb2018-03-13 15:22:58 +00002863 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002864 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2865 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002866 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002867 * Added a generic entropy accumulator that provides support for adding
2868 custom entropy sources and added some generic and platform dependent
Darryl Green11999bb2018-03-13 15:22:58 +00002869 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002870
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002871Changes
2872 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002873 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2874 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002875 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002876 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002877 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002878 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2879 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002880 * Changed the defined key-length of DES ciphers in cipher.h to include the
2881 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002882 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002883 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002884 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2885 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002886 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2887 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002888 * Changed the used random function pointer to more flexible format. Renamed
2889 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002890 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002891 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002892 * Added permissive certificate parsing to x509parse_crt() and
2893 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002894 encountering a parse-error. Beware that the meaning of return values has
2895 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002896 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002897
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002898Bugfix
2899 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2900 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002901 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2902 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002903 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2904 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002905 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2906 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002907 * If certificate serial is longer than 32 octets, serial number is now
2908 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002909 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002910 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002911 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002912 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002913
Paul Bakker968bc982011-07-27 17:03:00 +00002914= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002915Features
2916 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002917 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002918
Paul Bakker42e59812011-06-09 15:55:41 +00002919Changes
2920 * The generic cipher and message digest layer now have normal error
2921 codes instead of integers
2922
Paul Bakker887bd502011-06-08 13:10:54 +00002923Bugfix
2924 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2925 #18)
2926
Paul Bakker828acb22011-05-27 09:25:42 +00002927= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002928Features
2929 * Added additional Cipher Block Modes to symmetric ciphers
2930 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002931 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002932 * Functions requiring File System functions can now be disabled
2933 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002934 * A error_strerror function() has been added to translate between
2935 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002936 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2937 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002938 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002939
Paul Bakker23986e52011-04-24 08:57:21 +00002940Changes
2941 * Major argument / variable rewrite. Introduced use of size_t
2942 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002943 better unsigned / signed use. Renamed internal bigint types
2944 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002945 * mpi_init() and mpi_free() now only accept a single MPI
2946 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002947 * The error codes have been remapped and combining error codes
2948 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002949 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002950 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2951 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002952 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2953 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2954 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2955 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002956 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2957 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002958 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002959
Paul Bakker3efa5752011-04-01 12:23:26 +00002960= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002961Features
2962 * Added support for PKCS#1 v2.1 encoding and thus support
2963 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002964 * Reading of Public Key files incorporated into default x509
2965 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002966 * Added mpi_fill_random() for centralized filling of big numbers
2967 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002968
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002969Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002970 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002971 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002972 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002973 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002974 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002975
2976Bugfix
2977 * Debug output of MPI's now the same independent of underlying
2978 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002979 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002980 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2981 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002982 * Fixed proper handling of RSASSA-PSS verification with variable
2983 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002984
Paul Bakker345a6fe2011-02-28 21:20:02 +00002985= Version 0.99-pre3 released on 2011-02-28
2986This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002987Features
2988 * Parsing PEM private keys encrypted with DES and AES
2989 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002990 * Added crl_app program to allow easy reading and
2991 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00002992
2993Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002994 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00002995 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01002996 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00002997
Paul Bakker400ff6f2011-02-20 10:40:16 +00002998Bugfixes
2999 * Corrected parsing of UTCTime dates before 1990 and
3000 after 1950
3001 * Support more exotic OID's when parsing certificates
Darryl Green11999bb2018-03-13 15:22:58 +00003002 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00003003 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00003004 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00003005 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00003006 * Do not bail out if no client certificate specified. Try
3007 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01003008 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00003009
Paul Bakker345a6fe2011-02-28 21:20:02 +00003010Security fixes
3011 * Fixed a possible Man-in-the-Middle attack on the
3012 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01003013 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00003014
Paul Bakker9fc46592011-01-30 16:59:02 +00003015= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00003016Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00003017Note: Most of these features have been donated by Fox-IT
3018 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00003019 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00003020 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00003021 certificate fields, including Key Usage
3022 * Improved certificate verification and verification
3023 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00003024 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00003025 * Improvements to support integration in other
3026 applications:
3027 + Added generic message digest and cipher wrapper
3028 + Improved information about current capabilities,
3029 status, objects and configuration
3030 + Added verification callback on certificate chain
3031 verification to allow external blacklisting
Darryl Green11999bb2018-03-13 15:22:58 +00003032 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00003033 * Added support for PKCS#11 through the use of the
3034 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00003035
Paul Bakkerb6194992011-01-16 21:40:22 +00003036Changes
3037 * x509parse_time_expired() checks time in addition to
3038 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00003039 * The ciphers member of ssl_context and the cipher member
3040 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01003041 ciphersuite respectively. This clarifies the difference
3042 with the generic cipher layer and is better naming
3043 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00003044
Paul Bakker99ed6782011-01-05 14:48:42 +00003045= Version 0.14.0 released on 2010-08-16
3046Features
3047 * Added support for SSL_EDH_RSA_AES_128_SHA and
3048 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
3049 * Added compile-time and run-time version information
3050 * Expanded ssl_client2 arguments for more flexibility
3051 * Added support for TLS v1.1
3052
3053Changes
3054 * Made Makefile cleaner
3055 * Removed dependency on rand() in rsa_pkcs1_encrypt().
3056 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01003057 changed the prototype of rsa_pkcs1_encrypt(),
3058 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00003059 * Some SSL defines were renamed in order to avoid
3060 future confusion
3061
3062Bug fixes
3063 * Fixed CMake out of source build for tests (found by
3064 kkert)
3065 * rsa_check_private() now supports PKCS1v2 keys as well
3066 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
3067 generator
3068
3069= Version 0.13.1 released on 2010-03-24
3070Bug fixes
3071 * Fixed Makefile in library that was mistakenly merged
3072 * Added missing const string fixes
3073
3074= Version 0.13.0 released on 2010-03-21
3075Features
3076 * Added option parsing for host and port selection to
3077 ssl_client2
3078 * Added support for GeneralizedTime in X509 parsing
3079 * Added cert_app program to allow easy reading and
3080 printing of X509 certificates from file or SSL
3081 connection.
3082
3083Changes
3084 * Added const correctness for main code base
3085 * X509 signature algorithm determination is now
3086 in a function to allow easy future expansion
3087 * Changed symmetric cipher functions to
3088 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01003089 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00003090 * Added reset function for HMAC context as speed-up
3091 for specific use-cases
3092
3093Bug fixes
3094 * Fixed bug resulting in failure to send the last
3095 certificate in the chain in ssl_write_certificate() and
3096 ssl_write_certificate_request() (found by fatbob)
3097 * Added small fixes for compiler warnings on a Mac
3098 (found by Frank de Brabander)
3099 * Fixed algorithmic bug in mpi_is_prime() (found by
3100 Smbat Tonoyan)
3101
3102= Version 0.12.1 released on 2009-10-04
3103Changes
3104 * Coverage test definitions now support 'depends_on'
3105 tagging system.
3106 * Tests requiring specific hashing algorithms now honor
3107 the defines.
3108
3109Bug fixes
3110 * Changed typo in #ifdef in x509parse.c (found
3111 by Eduardo)
3112
3113= Version 0.12.0 released on 2009-07-28
3114Features
3115 * Added CMake makefiles as alternative to regular Makefiles.
3116 * Added preliminary Code Coverage tests for AES, ARC4,
3117 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
3118 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
3119 and X509parse.
3120
3121Changes
3122 * Error codes are not (necessarily) negative. Keep
3123 this is mind when checking for errors.
3124 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
3125 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
3126 * Changed interface for AES and Camellia setkey functions
3127 to indicate invalid key lengths.
3128
3129Bug fixes
3130 * Fixed include location of endian.h on FreeBSD (found by
3131 Gabriel)
3132 * Fixed include location of endian.h and name clash on
3133 Apples (found by Martin van Hensbergen)
3134 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
3135 required HMAC ipad and opad variables are not cleared.
3136 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01003137 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00003138 POLARSSL_HAVE_LONGLONG not defined (found by Giles
3139 Bathgate).
3140 * Fixed incorrect handling of negative strings in
3141 mpi_read_string() (found by code coverage tests).
3142 * Fixed segfault on handling empty rsa_context in
3143 rsa_check_pubkey() and rsa_check_privkey() (found by
3144 code coverage tests).
3145 * Fixed incorrect handling of one single negative input
3146 value in mpi_add_abs() (found by code coverage tests).
3147 * Fixed incorrect handling of negative first input
3148 value in mpi_sub_abs() (found by code coverage tests).
3149 * Fixed incorrect handling of negative first input
3150 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
3151 change also affects mpi_write_string() (found by code
3152 coverage tests).
3153 * Corrected is_prime() results for 0, 1 and 2 (found by
3154 code coverage tests).
3155 * Fixed Camellia and XTEA for 64-bit Windows systems.
3156
3157= Version 0.11.1 released on 2009-05-17
3158 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
3159 SHA-512 in rsa_pkcs1_sign()
3160
3161= Version 0.11.0 released on 2009-05-03
3162 * Fixed a bug in mpi_gcd() so that it also works when both
3163 input numbers are even and added testcases to check
3164 (found by Pierre Habouzit).
3165 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
3166 one way hash functions with the PKCS#1 v1.5 signing and
3167 verification.
3168 * Fixed minor bug regarding mpi_gcd located within the
3169 POLARSSL_GENPRIME block.
3170 * Fixed minor memory leak in x509parse_crt() and added better
3171 handling of 'full' certificate chains (found by Mathias
3172 Olsson).
3173 * Centralized file opening and reading for x509 files into
3174 load_file()
3175 * Made definition of net_htons() endian-clean for big endian
3176 systems (Found by Gernot).
3177 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01003178 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00003179 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
3180 responsible for crashes and unwanted behaviour.
3181 * Added support for Certificate Revocation List (CRL) parsing.
3182 * Added support for CRL revocation to x509parse_verify() and
3183 SSL/TLS code.
3184 * Fixed compatibility of XTEA and Camellia on a 64-bit system
3185 (found by Felix von Leitner).
3186
3187= Version 0.10.0 released on 2009-01-12
3188 * Migrated XySSL to PolarSSL
3189 * Added XTEA symmetric cipher
3190 * Added Camellia symmetric cipher
3191 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
3192 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
3193 * Fixed dangerous bug that can cause a heap overflow in
3194 rsa_pkcs1_decrypt (found by Christophe Devine)
3195
3196================================================================
3197XySSL ChangeLog
3198
3199= Version 0.9 released on 2008-03-16
3200
3201 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
3202 * Enabled support for large files by default in aescrypt2.c
3203 * Preliminary openssl wrapper contributed by David Barrett
3204 * Fixed a bug in ssl_write() that caused the same payload to
3205 be sent twice in non-blocking mode when send returns EAGAIN
3206 * Fixed ssl_parse_client_hello(): session id and challenge must
3207 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
3208 * Added user-defined callback debug function (Krystian Kolodziej)
3209 * Before freeing a certificate, properly zero out all cert. data
3210 * Fixed the "mode" parameter so that encryption/decryption are
3211 not swapped on PadLock; also fixed compilation on older versions
3212 of gcc (bug reported by David Barrett)
3213 * Correctly handle the case in padlock_xcryptcbc() when input or
Antonin Décimod5f47592019-01-23 15:24:37 +01003214 output data is non-aligned by falling back to the software
Paul Bakker99ed6782011-01-05 14:48:42 +00003215 implementation, as VIA Nehemiah cannot handle non-aligned buffers
3216 * Fixed a memory leak in x509parse_crt() which was reported by Greg
3217 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
3218 Matthew Page who reported several bugs
3219 * Fixed x509_get_ext() to accept some rare certificates which have
3220 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
3221 * Added support on the client side for the TLS "hostname" extension
3222 (patch contributed by David Patino)
3223 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
3224 string is passed as the CN (bug reported by spoofy)
3225 * Added an option to enable/disable the BN assembly code
3226 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
3227 * Disabled obsolete hash functions by default (MD2, MD4); updated
3228 selftest and benchmark to not test ciphers that have been disabled
3229 * Updated x509parse_cert_info() to correctly display byte 0 of the
3230 serial number, setup correct server port in the ssl client example
3231 * Fixed a critical denial-of-service with X.509 cert. verification:
3232 peer may cause xyssl to loop indefinitely by sending a certificate
3233 for which the RSA signature check fails (bug reported by Benoit)
3234 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
3235 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
3236 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
3237 * Modified ssl_parse_client_key_exchange() to protect against
3238 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
3239 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
3240 * Updated rsa_gen_key() so that ctx->N is always nbits in size
3241 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
3242 David Barrett and Dusan Semen
3243
3244= Version 0.8 released on 2007-10-20
3245
3246 * Modified the HMAC functions to handle keys larger
3247 than 64 bytes, thanks to Stephane Desneux and gary ng
3248 * Fixed ssl_read_record() to properly update the handshake
3249 message digests, which fixes IE6/IE7 client authentication
3250 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
3251 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
3252 * Added user-defined callbacks for handling I/O and sessions
3253 * Added lots of debugging output in the SSL/TLS functions
3254 * Added preliminary X.509 cert. writing by Pascal Vizeli
3255 * Added preliminary support for the VIA PadLock routines
3256 * Added AES-CFB mode of operation, contributed by chmike
3257 * Added an SSL/TLS stress testing program (ssl_test.c)
3258 * Updated the RSA PKCS#1 code to allow choosing between
3259 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
3260 * Updated ssl_read() to skip 0-length records from OpenSSL
3261 * Fixed the make install target to comply with *BSD make
3262 * Fixed a bug in mpi_read_binary() on 64-bit platforms
3263 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
3264 * Fixed a long standing memory leak in mpi_is_prime()
3265 * Replaced realloc with malloc in mpi_grow(), and set
3266 the sign of zero as positive in mpi_init() (reported
3267 by Jonathan M. McCune)
3268
3269= Version 0.7 released on 2007-07-07
3270
3271 * Added support for the MicroBlaze soft-core processor
3272 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
3273 connections from being established with non-blocking I/O
3274 * Fixed a couple bugs in the VS6 and UNIX Makefiles
3275 * Fixed the "PIC register ebx clobbered in asm" bug
3276 * Added HMAC starts/update/finish support functions
3277 * Added the SHA-224, SHA-384 and SHA-512 hash functions
3278 * Fixed the net_set_*block routines, thanks to Andreas
3279 * Added a few demonstration programs: md5sum, sha1sum,
3280 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
3281 * Added new bignum import and export helper functions
3282 * Rewrote README.txt in program/ssl/ca to better explain
3283 how to create a test PKI
3284
3285= Version 0.6 released on 2007-04-01
3286
3287 * Ciphers used in SSL/TLS can now be disabled at compile
3288 time, to reduce the memory footprint on embedded systems
3289 * Added multiply assembly code for the TriCore and modified
3290 havege_struct for this processor, thanks to David Patiño
3291 * Added multiply assembly code for 64-bit PowerPCs,
3292 thanks to Peking University and the OSU Open Source Lab
3293 * Added experimental support of Quantum Cryptography
3294 * Added support for autoconf, contributed by Arnaud Cornet
3295 * Fixed "long long" compilation issues on IA-64 and PPC64
3296 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
3297 was not being correctly defined on ARM and MIPS
3298
3299= Version 0.5 released on 2007-03-01
3300
3301 * Added multiply assembly code for SPARC and Alpha
3302 * Added (beta) support for non-blocking I/O operations
3303 * Implemented session resuming and client authentication
3304 * Fixed some portability issues on WinCE, MINIX 3, Plan9
3305 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
3306 * Improved the performance of the EDH key exchange
3307 * Fixed a bug that caused valid packets with a payload
3308 size of 16384 bytes to be rejected
3309
3310= Version 0.4 released on 2007-02-01
3311
3312 * Added support for Ephemeral Diffie-Hellman key exchange
3313 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
3314 * Various improvement to the modular exponentiation code
3315 * Rewrote the headers to generate the API docs with doxygen
3316 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
3317 generated) and in ssl_parse_client_hello (max. client
3318 version was not properly set), thanks to Didier Rebeix
3319 * Fixed another bug in ssl_parse_client_hello: clients with
3320 cipherlists larger than 96 bytes were incorrectly rejected
3321 * Fixed a couple memory leak in x509_read.c
3322
3323= Version 0.3 released on 2007-01-01
3324
3325 * Added server-side SSLv3 and TLSv1.0 support
3326 * Multiple fixes to enhance the compatibility with g++,
3327 thanks to Xosé Antón Otero Ferreira
3328 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01003329 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00003330 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
3331 * Updated timing.c for improved compatibility with i386
3332 and 486 processors, thanks to Arnaud Cornet
3333
3334= Version 0.2 released on 2006-12-01
3335
3336 * Updated timing.c to support ARM and MIPS arch
3337 * Updated the MPI code to support 8086 on MSVC 1.5
3338 * Added the copyright notice at the top of havege.h
3339 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
3340 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
3341 * Fixed a bug reported by Torsten Lauter in ssl_read_record
3342 * Fixed a bug in rsa_check_privkey that would wrongly cause
3343 valid RSA keys to be dismissed (thanks to oldwolf)
3344 * Fixed a bug in mpi_is_prime that caused some primes to fail
3345 the Miller-Rabin primality test
3346
3347 I'd also like to thank Younès Hafri for the CRUX linux port,
3348 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
3349 who maintains the Debian package :-)
3350
3351= Version 0.1 released on 2006-11-01