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authorTrygve Laugstøl <trygvis@inamo.no>2018-08-23 17:08:59 +0200
committerTrygve Laugstøl <trygvis@inamo.no>2018-08-23 17:12:21 +0200
commit3061ecca3d0fdfb87dabbf5f63c9e06c2a30f53a (patch)
treeab49cc16ed0b853452c5c2ed2d3042416d628986 /thirdparty/nRF5_SDK_15.0.0_a53641a/external/mbedtls/ChangeLog
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+mbed TLS ChangeLog (Sorted per branch, date)
+
+= mbed TLS 2.4.2 branch released 2017-03-08
+
+Security
+ * Add checks to prevent signature forgeries for very large messages while
+ using RSA through the PK module in 64-bit systems. The issue was caused by
+ some data loss when casting a size_t to an unsigned int value in the
+ functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
+ mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
+ * Fixed potential livelock during the parsing of a CRL in PEM format in
+ mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
+ characters after the footer could result in the execution of an infinite
+ loop. The issue can be triggered remotely. Found by Greg Zaverucha,
+ Microsoft.
+ * Removed MD5 from the allowed hash algorithms for CertificateRequest and
+ CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
+ Introduced by interoperability fix for #513.
+ * Fixed a bug that caused freeing a buffer that was allocated on the stack,
+ when verifying the validity of a key on secp224k1. This could be
+ triggered remotely for example with a maliciously constructed certificate
+ and potentially could lead to remote code execution on some platforms.
+ Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
+ team. #569 CVE-2017-2784
+
+Bugfix
+ * Fix output certificate verification flags set by x509_crt_verify_top() when
+ traversing a chain of trusted CA. The issue would cause both flags,
+ MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
+ set when the verification conditions are not met regardless of the cause.
+ Found by Harm Verhagen and inestlerode. #665 #561
+ * Fix the redefinition of macro ssl_set_bio to an undefined symbol
+ mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
+ Found by omlib-lin. #673
+ * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
+ x509_csr.c that are reported when building mbed TLS with a config.h that
+ does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
+ * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
+ would compare 64 bits of the record counter instead of 48 bits as indicated
+ in RFC 6347 Section 4.3.1. This could cause the execution of the
+ renegotiation routines at unexpected times when the protocol is DTLS. Found
+ by wariua. #687
+ * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
+ the input string in PEM format to extract the different components. Found
+ by Eyal Itkin.
+ * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
+ cause buffer bound checks to be bypassed. Found by Eyal Itkin.
+ * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
+ cause buffer bound checks to be bypassed. Found by Eyal Itkin.
+ * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
+ cause buffer bound checks to be bypassed. Found by Eyal Itkin.
+ * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
+ cause buffer bound checks to be bypassed. Found by Eyal Itkin.
+ * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
+ Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
+ * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
+ by missing calls to mbedtls_pem_free() in cases when a
+ MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
+ fix proposed by Guido Vranken. #722
+ * Fixed the templates used to generate project and solution files for Visual
+ Studio 2015 as well as the files themselves, to remove a build warning
+ generated in Visual Studio 2015. Reported by Steve Valliere. #742
+ * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
+ Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
+ * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
+ number to write in hexadecimal is negative and requires an odd number of
+ digits. Found and fixed by Guido Vranken.
+ * Fix unlisted DES configuration dependency in some pkparse test cases. Found
+ by inestlerode. #555
+
+= mbed TLS 2.4.1 branch released 2016-12-13
+
+Changes
+ * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
+ Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
+ Authentication – October 2016
+
+= mbed TLS 2.4.0 branch released 2016-10-17
+
+Security
+ * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
+ with RFC-5116 and could lead to session key recovery in very long TLS
+ sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
+ TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
+ https://eprint.iacr.org/2016/475.pdf
+ * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
+ mbedtls_x509write_csr_der() when the signature is copied to the buffer
+ without checking whether there is enough space in the destination. The
+ issue cannot be triggered remotely. Found by Jethro Beekman.
+
+Features
+ * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
+ NIST SP 800-38B, RFC-4493 and RFC-4615.
+ * Added hardware entropy selftest to verify that the hardware entropy source
+ is functioning correctly.
+ * Added a script to print build environment info for diagnostic use in test
+ scripts, which is also now called by all.sh.
+ * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
+ configure the maximum length of a file path that can be buffered when
+ calling mbedtls_x509_crt_parse_path().
+ * Added a configuration file config-no-entropy.h that configures the subset of
+ library features that do not require an entropy source.
+ * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
+ to configure the minimum number of bytes for entropy sources using the
+ mbedtls_hardware_poll() function.
+
+Bugfix
+ * Fix for platform time abstraction to avoid dependency issues where a build
+ may need time but not the standard C library abstraction, and added
+ configuration consistency checks to check_config.h
+ * Fix dependency issue in Makefile to allow parallel builds.
+ * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
+ when GCM is used. Found by udf2457. #441
+ * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
+ enabled unless others were also present. Found by David Fernandez. #428
+ * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
+ a contribution from Tobias Tangemann. #541
+ * Fixed cert_app.c sample program for debug output and for use when no root
+ certificates are provided.
+ * Fix conditional statement that would cause a 1 byte overread in
+ mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
+ * Fixed pthread implementation to avoid unintended double initialisations
+ and double frees. Found by Niklas Amnebratt.
+ * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
+ builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
+ by inestlerode. #559.
+ * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
+ data structure until after error checks are successful. Found by
+ subramanyam-c. #622
+ * Fix documentation and implementation missmatch for function arguments of
+ mbedtls_gcm_finish(). Found by cmiatpaar. #602
+ * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
+ * Fix potential byte overread when verifying malformed SERVER_HELLO in
+ ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
+ * Fix check for validity of date when parsing in mbedtls_x509_get_time().
+ Found by subramanyam-c. #626
+ * Fix compatibility issue with Internet Explorer client authentication,
+ where the limited hash choices prevented the client from sending its
+ certificate. Found by teumas. #513
+ * Fix compilation without MBEDTLS_SELF_TEST enabled.
+
+Changes
+ * Extended test coverage of special cases, and added new timing test suite.
+ * Removed self-tests from the basic-built-test.sh script, and added all
+ missing self-tests to the test suites, to ensure self-tests are only
+ executed once.
+ * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
+ * Added support for a Yotta specific configuration file -
+ through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
+ * Added optimization for code space for X.509/OID based on configured
+ features. Contributed by Aviv Palivoda.
+ * Renamed source file library/net.c to library/net_sockets.c to avoid
+ naming collision in projects which also have files with the common name
+ net.c. For consistency, the corresponding header file, net.h, is marked as
+ deprecated, and its contents moved to net_sockets.h.
+ * Changed the strategy for X.509 certificate parsing and validation, to no
+ longer disregard certificates with unrecognised fields.
+
+= mbed TLS 2.3.0 branch released 2016-06-28
+
+Security
+ * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
+ required by PKCS1 v2.2
+ * Fix potential integer overflow to buffer overflow in
+ mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
+ (not triggerable remotely in (D)TLS).
+ * Fix a potential integer underflow to buffer overread in
+ mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
+ SSL/TLS.
+
+Features
+ * Support for platform abstraction of the standard C library time()
+ function.
+
+Bugfix
+ * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
+ arguments where the same (in-place doubling). Found and fixed by Janos
+ Follath. #309
+ * Fix potential build failures related to the 'apidoc' target, introduced
+ in the previous patch release. Found by Robert Scheck. #390 #391
+ * Fix issue in Makefile that prevented building using armar. #386
+ * Fix memory leak that occured only when ECJPAKE was enabled and ECDHE and
+ ECDSA was disabled in config.h . The leak didn't occur by default.
+ * Fix an issue that caused valid certificates to be rejected whenever an
+ expired or not yet valid certificate was parsed before a valid certificate
+ in the trusted certificate list.
+ * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
+ buffer after DER certificates to be included in the raw representation.
+ * Fix issue that caused a hang when generating RSA keys of odd bitlength
+ * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
+ dereference possible.
+ * Fix issue that caused a crash if invalid curves were passed to
+ mbedtls_ssl_conf_curves. #373
+ * Fix issue in ssl_fork_server which was preventing it from functioning. #429
+ * Fix memory leaks in test framework
+ * Fix test in ssl-opt.sh that does not run properly with valgrind
+ * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
+
+Changes
+ * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
+ don't use the optimized assembly for bignum multiplication. This removes
+ the need to pass -fomit-frame-pointer to avoid a build error with -O0.
+ * Disabled SSLv3 in the default configuration.
+ * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
+ Skalozub).
+ * Fix non-compliance server extension handling. Extensions for SSLv3 are now
+ ignored, as required by RFC6101.
+
+= mbed TLS 2.2.1 released 2016-01-05
+
+Security
+ * Fix potential double free when mbedtls_asn1_store_named_data() fails to
+ allocate memory. Only used for certificate generation, not triggerable
+ remotely in SSL/TLS. Found by Rafał Przywara. #367
+ * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
+ SLOTH attack on TLS 1.2 server authentication (other attacks from the
+ SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
+ https://www.mitls.org/pages/attacks/SLOTH
+
+Bugfix
+ * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
+ * Fix bug in certificate validation that caused valid chains to be rejected
+ when the first intermediate certificate has pathLenConstraint=0. Found by
+ Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
+ * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
+ JayaraghavendranK. #372
+ * Fix suboptimal handling of unexpected records that caused interop issues
+ with some peers over unreliable links. Avoid dropping an entire DTLS
+ datagram if a single record in a datagram is unexpected, instead only
+ drop the record and look at subsequent records (if any are present) in
+ the same datagram. Found by jeannotlapin. #345
+
+= mbed TLS 2.2.0 released 2015-11-04
+
+Security
+ * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
+ once and some allocation fails. Cannot be forced remotely. Found by Guido
+ Vranken, Intelworks.
+ * Fix potential heap corruption on Windows when
+ mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
+ triggered remotely. Found by Guido Vranken, Intelworks.
+ * Fix potential buffer overflow in some asn1_write_xxx() functions.
+ Cannot be triggered remotely unless you create X.509 certificates based
+ on untrusted input or write keys of untrusted origin. Found by Guido
+ Vranken, Intelworks.
+ * The X509 max_pathlen constraint was not enforced on intermediate
+ certificates. Found by Nicholas Wilson, fix and tests provided by
+ Janos Follath. #280 and #319
+
+Features
+ * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
+ Disabled by default as the specification might still change.
+ * Added a key extraction callback to accees the master secret and key
+ block. (Potential uses include EAP-TLS and Thread.)
+
+Bugfix
+ * Self-signed certificates were not excluded from pathlen counting,
+ resulting in some valid X.509 being incorrectly rejected. Found and fix
+ provided by Janos Follath. #319
+ * Fix build error with configurations where ECDHE-PSK is the only key
+ exchange. Found and fix provided by Chris Hammond. #270
+ * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
+ ECHD-ECDSA if the only key exchange. Multiple reports. #310
+ * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
+ not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
+ * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
+ size/curve against the profile. Before that, there was no way to set a
+ minimum key size for end-entity certificates with RSA keys. Found by
+ Matthew Page of Scannex Electronics Ltd.
+ * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
+ Found by Kurt Danielson. #292
+ * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
+ * Fix bug in ASN.1 encoding of booleans that caused generated CA
+ certificates to be rejected by some applications, including OS X
+ Keychain. Found and fixed by Jonathan Leroy, Inikup.
+
+Changes
+ * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
+ or -1.
+
+= mbed TLS 2.1.2 released 2015-10-06
+
+Security
+ * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
+ overflow of the hostname or session ticket. Found by Guido Vranken,
+ Intelworks.
+ * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
+ once in the same handhake and mbedtls_ssl_conf_psk() was used.
+ Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
+ remotely.
+ * Fix stack buffer overflow in pkcs12 decryption (used by
+ mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
+ Found by Guido Vranken, Intelworks. Not triggerable remotely.
+ * Fix potential buffer overflow in mbedtls_mpi_read_string().
+ Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
+ of TLS, but might be in other uses. On 32 bit machines, requires reading a
+ string of close to or larger than 1GB to exploit; on 64 bit machines, would
+ require reading a string of close to or larger than 2^62 bytes.
+ * Fix potential random memory allocation in mbedtls_pem_read_buffer()
+ on crafted PEM input data. Found and fix provided by Guido Vranken,
+ Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
+ accept PEM data from an untrusted source.
+ * Fix possible heap buffer overflow in base64_encoded() when the input
+ buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
+ Intelworks. Not trigerrable remotely in TLS.
+ * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
+ the same mbedtls_ssl_config object and memory allocation fails. Found by
+ Guido Vranken, Intelworks. Cannot be forced remotely.
+ * Fix potential heap buffer overflow in servers that perform client
+ authentication against a crafted CA cert. Cannot be triggered remotely
+ unless you allow third parties to pick trust CAs for client auth.
+ Found by Guido Vranken, Intelworks.
+
+Bugfix
+ * Fix compile error in net.c with musl libc. Found and patch provided by
+ zhasha (#278).
+ * Fix macroization of 'inline' keyword when building as C++. (#279)
+
+Changes
+ * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
+ domain names are compliant with RFC 1035.
+ * Fixed paths for check_config.h in example config files. (Found by bachp)
+ (#291)
+
+= mbed TLS 2.1.1 released 2015-09-17
+
+Security
+ * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
+ signatures. (Found by Florian Weimer, Red Hat.)
+ https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
+ * Fix possible client-side NULL pointer dereference (read) when the client
+ tries to continue the handshake after it failed (a misuse of the API).
+ (Found and patch provided by Fabian Foerg, Gotham Digital Science using
+ afl-fuzz.)
+
+Bugfix
+ * Fix warning when using a 64bit platform. (found by embedthis) (#275)
+ * Fix off-by-one error in parsing Supported Point Format extension that
+ caused some handshakes to fail.
+
+Changes
+ * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
+ use of mbedtls_x509_crt_profile_next. (found by NWilson)
+ * When a client initiates a reconnect from the same port as a live
+ connection, if cookie verification is available
+ (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
+ callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
+ detected and mbedtls_ssl_read() will return
+ MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
+ handshake with the same context. (See RFC 6347 section 4.2.8.)
+
+= mbed TLS 2.1.0 released 2015-09-04
+
+Features
+ * Added support for yotta as a build system.
+ * Primary open source license changed to Apache 2.0 license.
+
+Bugfix
+ * Fix segfault in the benchmark program when benchmarking DHM.
+ * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
+ Leisink).
+ * Fix bug when parsing a ServerHello without extensions (found by David
+ Sears).
+ * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
+ (found by Benoit Lecocq).
+ * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
+ installed (found by Rawi666).
+ * Fix compile error with armcc 5 with --gnu option.
+ * Fix bug in Makefile that caused programs not to be installed correctly
+ (found by robotanarchy) (#232).
+ * Fix bug in Makefile that prevented from installing without building the
+ tests (found by robotanarchy) (#232).
+ * Fix missing -static-libgcc when building shared libraries for Windows
+ with make.
+ * Fix link error when building shared libraries for Windows with make.
+ * Fix error when loading libmbedtls.so.
+ * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
+ be always used (found by dcb314) (#235)
+ * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
+ result trying to unlock an unlocked mutex on invalid input (found by
+ Fredrik Axelsson) (#257)
+ * Fix -Wshadow warnings (found by hnrkp) (#240)
+ * Fix memory corruption on client with overlong PSK identity, around
+ SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
+ Aleksandrs Saveljevs) (#238)
+ * Fix unused function warning when using MBEDTLS_MDx_ALT or
+ MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
+ * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
+
+Changes
+ * The PEM parser now accepts a trailing space at end of lines (#226).
+ * It is now possible to #include a user-provided configuration file at the
+ end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
+ compiler's command line.
+ * When verifying a certificate chain, if an intermediate certificate is
+ trusted, no later cert is checked. (suggested by hannes-landeholm)
+ (#220).
+ * Prepend a "thread identifier" to debug messages (issue pointed out by
+ Hugo Leisink) (#210).
+ * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
+ length.
+
+= mbed TLS 2.0.0 released 2015-07-13
+
+Features
+ * Support for DTLS 1.0 and 1.2 (RFC 6347).
+ * Ability to override core functions from MDx, SHAx, AES and DES modules
+ with custom implementation (eg hardware accelerated), complementing the
+ ability to override the whole module.
+ * New server-side implementation of session tickets that rotate keys to
+ preserve forward secrecy, and allows sharing across multiple contexts.
+ * Added a concept of X.509 cerificate verification profile that controls
+ which algorithms and key sizes (curves for ECDSA) are acceptable.
+ * Expanded configurability of security parameters in the SSL module with
+ mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
+ * Introduced a concept of presets for SSL security-relevant configuration
+ parameters.
+
+API Changes
+ * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
+ You now need to link to all of them if you use TLS for example.
+ * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
+ Some names have been further changed to make them more consistent.
+ Migration helpers scripts/rename.pl and include/mbedlts/compat-1.3.h are
+ provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
+ * Renamings of fields inside structures, not covered by the previous list:
+ mbedtls_cipher_info_t.key_length -> key_bitlen
+ mbedtls_cipher_context_t.key_length -> key_bitlen
+ mbedtls_ecp_curve_info.size -> bit_size
+ * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
+ * The following _init() functions that could return errors have
+ been split into an _init() that returns void and another function that
+ should generally be the first function called on this context after init:
+ mbedtls_ssl_init() -> mbedtls_ssl_setup()
+ mbedtls_ccm_init() -> mbedtls_ccm_setkey()
+ mbedtls_gcm_init() -> mbedtls_gcm_setkey()
+ mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
+ mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
+ Note that for mbedtls_ssl_setup(), you need to be done setting up the
+ ssl_config structure before calling it.
+ * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
+ ssl_set_session() and ssl_set_client_transport_id(), plus
+ ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
+ (see rename.pl and compat-1.3.h above) and their first argument's type
+ changed from ssl_context to ssl_config.
+ * ssl_set_bio() changed signature (contexts merged, order switched, one
+ additional callback for read-with-timeout).
+ * The following functions have been introduced and must be used in callback
+ implementations (SNI, PSK) instead of their *conf counterparts:
+ mbedtls_ssl_set_hs_own_cert()
+ mbedtls_ssl_set_hs_ca_chain()
+ mbedtls_ssl_set_hs_psk()
+ * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
+ using mbedtls_ssl_set_hostname().
+ * mbedtls_ssl_conf_session_cache() changed prototype (only one context
+ pointer, parameters reordered).
+ * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
+ place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
+ * The SSL debug callback gained two new arguments (file name, line number).
+ * Debug modes were removed.
+ * mbedtls_ssl_conf_truncated_hmac() now returns void.
+ * mbedtls_memory_buffer_alloc_init() now returns void.
+ * X.509 verification flags are now an uint32_t. Affect the signature of:
+ mbedtls_ssl_get_verify_result()
+ mbedtls_x509_ctr_verify_info()
+ mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
+ mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
+ * The following functions changed prototype to avoid an in-out length
+ parameter:
+ mbedtls_base64_encode()
+ mbedtls_base64_decode()
+ mbedtls_mpi_write_string()
+ mbedtls_dhm_calc_secret()
+ * In the NET module, all "int" and "int *" arguments for file descriptors
+ changed type to "mbedtls_net_context *".
+ * net_accept() gained new arguments for the size of the client_ip buffer.
+ * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
+ return void.
+ * ecdsa_write_signature() gained an addtional md_alg argument and
+ ecdsa_write_signature_det() was deprecated.
+ * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
+ * Last argument of x509_crt_check_key_usage() and
+ mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
+ * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
+ available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
+ * Test certificates in certs.c are no longer guaranteed to be nul-terminated
+ strings; use the new *_len variables instead of strlen().
+ * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
+ mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
+ length parameter to include the terminating null byte for PEM input.
+ * Signature of mpi_mul_mpi() changed to make the last argument unsigned
+ * calloc() is now used instead of malloc() everywhere. API of platform
+ layer and the memory_buffer_alloc module changed accordingly.
+ (Thanks to Mansour Moufid for helping with the replacement.)
+ * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
+ (support for renegotiation now needs explicit enabling in config.h).
+ * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
+ in config.h
+ * net_connect() and net_bind() have a new 'proto' argument to choose
+ between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
+ Their 'port' argument type is changed to a string.
+ * Some constness fixes
+
+Removals
+ * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
+ * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
+ mbedtls_ecp_muladd().
+ * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
+ (use generic functions from md.h)
+ * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
+ waiting function.
+ * Removed test DHM parameters from the test certs module.
+ * Removed the PBKDF2 module (use PKCS5).
+ * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
+ * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
+ * Removed openssl.h (very partial OpenSSL compatibility layer).
+ * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
+ * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
+ been removed (compiler is required to support 32-bit operations).
+ * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
+ * Removed test program o_p_test, the script compat.sh does more.
+ * Removed test program ssl_test, superseded by ssl-opt.sh.
+ * Removed helper script active-config.pl
+
+New deprecations
+ * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
+ argument (allowing memory savings if HMAC is not used)
+
+Semi-API changes (technically public, morally private)
+ * Renamed a few headers to include _internal in the name. Those headers are
+ not supposed to be included by users.
+ * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
+ * Changed pk_info_t into an opaque structure.
+ * Changed cipher_base_t into an opaque structure.
+ * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
+ * x509_crt.key_usage changed from unsigned char to unsigned int.
+ * Removed r and s from ecdsa_context
+ * Removed mode from des_context and des3_context
+
+Default behavior changes
+ * The default minimum TLS version is now TLS 1.0.
+ * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
+ default ciphersuite list returned by ssl_list_ciphersuites()
+ * Support for receiving SSLv2 ClientHello is now disabled by default at
+ compile time.
+ * The default authmode for SSL/TLS clients is now REQUIRED.
+ * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
+ enabled in the default configuration, this is only noticeable if using a
+ custom config.h
+ * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
+ * A minimum RSA key size of 2048 bits is now enforced during ceritificate
+ chain verification.
+ * Negotiation of truncated HMAC is now disabled by default on server too.
+ * The following functions are now case-sensitive:
+ mbedtls_cipher_info_from_string()
+ mbedtls_ecp_curve_info_from_name()
+ mbedtls_md_info_from_string()
+ mbedtls_ssl_ciphersuite_from_string()
+ mbedtls_version_check_feature()
+
+Requirement changes
+ * The minimum MSVC version required is now 2010 (better C99 support).
+ * The NET layer now unconditionnaly relies on getaddrinfo() and select().
+ * Compiler is required to support C99 types such as long long and uint32_t.
+
+API changes from the 1.4 preview branch
+ * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
+ new prototype, and mbedtls_ssl_set_read_timeout().
+ * The following functions now return void:
+ mbedtls_ssl_conf_transport()
+ mbedtls_ssl_conf_max_version()
+ mbedtls_ssl_conf_min_version()
+ * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
+ instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
+ an example implementation, see mbedtls_timing_delay_context and
+ mbedtls_timing_set/get_delay().
+ * With UDP sockets, it is no longer necessary to call net_bind() again
+ after a successful net_accept().
+
+Changes
+ * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
+ thread-safe if MBEDTLS_THREADING_C is enabled.
+ * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
+ more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
+
+= mbed TLS 1.3 branch
+
+Security
+ * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
+ extendedKeyUsage on the leaf certificate was lost (results not accessible
+ via ssl_get_verify_results()).
+ * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
+ https://dl.acm.org/citation.cfm?id=2714625
+
+Features
+ * Improve ECC performance by using more efficient doubling formulas
+ (contributed by Peter Dettman).
+ * Add x509_crt_verify_info() to display certificate verification results.
+ * Add support for reading DH parameters with privateValueLength included
+ (contributed by Daniel Kahn Gillmor).
+ * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
+ * Add support for id-at-uniqueIdentifier in X.509 names.
+ * Add support for overriding snprintf() (except on Windows) and exit() in
+ the platform layer.
+ * Add an option to use macros instead of function pointers in the platform
+ layer (helps get rid of unwanted references).
+ * Improved Makefiles for Windows targets by fixing library targets and making
+ cross-compilation easier (thanks to Alon Bar-Lev).
+ * The benchmark program also prints heap usage for public-key primitives
+ if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
+ * New script ecc-heap.sh helps measuring the impact of ECC parameters on
+ speed and RAM (heap only for now) usage.
+ * New script memory.sh helps measuring the ROM and RAM requirements of two
+ reduced configurations (PSK-CCM and NSA suite B).
+ * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
+ warnings on use of deprecated functions (with GCC and Clang only).
+ * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
+ errors on use of deprecated functions.
+
+Bugfix
+ * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
+ * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
+ * Fix bug in entropy.c when THREADING_C is also enabled that caused
+ entropy_free() to crash (thanks to Rafał Przywara).
+ * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
+ once on the same context.
+ * Fix bug in ssl_mail_client when password is longer that username (found
+ by Bruno Pape).
+ * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
+ (detected by Clang's 3.6 UBSan).
+ * mpi_size() and mpi_msb() would segfault when called on an mpi that is
+ initialized but not set (found by pravic).
+ * Fix detection of support for getrandom() on Linux (reported by syzzer) by
+ doing it at runtime (using uname) rather that compile time.
+ * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
+ * Fix potential NULL pointer dereference (not trigerrable remotely) when
+ ssl_write() is called before the handshake is finished (introduced in
+ 1.3.10) (first reported by Martin Blumenstingl).
+ * Fix bug in pk_parse_key() that caused some valid private EC keys to be
+ rejected.
+ * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
+ * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
+ * Fix hardclock() (only used in the benchmarking program) with some
+ versions of mingw64 (found by kxjhlele).
+ * Fix warnings from mingw64 in timing.c (found by kxjklele).
+ * Fix potential unintended sign extension in asn1_get_len() on 64-bit
+ platforms.
+ * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
+ * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
+ POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
+ in 1.3.10).
+ * Add missing extern "C" guard in aesni.h (reported by amir zamani).
+ * Add missing dependency on SHA-256 in some x509 programs (reported by
+ Gergely Budai).
+ * Fix bug related to ssl_set_curves(): the client didn't check that the
+ curve picked by the server was actually allowed.
+
+Changes
+ * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
+ * Remove potential sources of timing variations (some contributed by Pascal
+ Junod).
+ * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
+ * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
+ * compat-1.2.h and openssl.h are deprecated.
+ * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
+ more flexible (warning: OFLAGS is not used any more) (see the README)
+ (contributed by Alon Bar-Lev).
+ * ssl_set_own_cert() no longer calls pk_check_pair() since the
+ performance impact was bad for some users (this was introduced in 1.3.10).
+ * Move from SHA-1 to SHA-256 in example programs using signatures
+ (suggested by Thorsten Mühlfelder).
+ * Remove some unneeded inclusions of header files from the standard library
+ "minimize" others (eg use stddef.h if only size_t is needed).
+ * Change #include lines in test files to use double quotes instead of angle
+ brackets for uniformity with the rest of the code.
+ * Remove dependency on sscanf() in X.509 parsing modules.
+
+= mbed TLS 1.3.10 released 2015-02-09
+Security
+ * NULL pointer dereference in the buffer-based allocator when the buffer is
+ full and polarssl_free() is called (found by Mark Hasemeyer)
+ (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
+ not by default).
+ * Fix remotely-triggerable uninitialised pointer dereference caused by
+ crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
+ client certificate) (found using Codenomicon Defensics).
+ * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
+ (TLS server is not affected if it doesn't ask for a client certificate)
+ (found using Codenomicon Defensics).
+ * Fix potential stack overflow while parsing crafted X.509 certificates
+ (TLS server is not affected if it doesn't ask for a client certificate)
+ (found using Codenomicon Defensics).
+ * Fix timing difference that could theoretically lead to a
+ Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
+ (reported by Sebastian Schinzel).
+
+Features
+ * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
+ * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
+ * Add support for Encrypt-then-MAC (RFC 7366).
+ * Add function pk_check_pair() to test if public and private keys match.
+ * Add x509_crl_parse_der().
+ * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
+ length of an X.509 verification chain.
+ * Support for renegotiation can now be disabled at compile-time
+ * Support for 1/n-1 record splitting, a countermeasure against BEAST.
+ * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
+ for pre-1.2 clients when multiple certificates are available.
+ * Add support for getrandom() syscall on recent Linux kernels with Glibc or
+ a compatible enough libc (eg uClibc).
+ * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
+ while using the default ciphersuite list.
+ * Added new error codes and debug messages about selection of
+ ciphersuite/certificate.
+
+Bugfix
+ * Stack buffer overflow if ctr_drbg_update() is called with too large
+ add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
+ * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
+ if memory_buffer_alloc_init() was called with buf not aligned and len not
+ a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
+ * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
+ by Julian Ospald).
+ * Fix potential undefined behaviour in Camellia.
+ * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
+ multiple of 8 (found by Gergely Budai).
+ * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
+ Peter Vaskovic).
+ * Fix assembly selection for MIPS64 (thanks to James Cowgill).
+ * ssl_get_verify_result() now works even if the handshake was aborted due
+ to a failed verification (found by Fredrik Axelsson).
+ * Skip writing and parsing signature_algorithm extension if none of the
+ key exchanges enabled needs certificates. This fixes a possible interop
+ issue with some servers when a zero-length extension was sent. (Reported
+ by Peter Dettman.)
+ * On a 0-length input, base64_encode() did not correctly set output length
+ (found by Hendrik van den Boogaard).
+
+Changes
+ * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
+ switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
+ * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
+ * ssl_set_own_cert() now returns an error on key-certificate mismatch.
+ * Forbid repeated extensions in X.509 certificates.
+ * debug_print_buf() now prints a text view in addition to hexadecimal.
+ * A specific error is now returned when there are ciphersuites in common
+ but none of them is usable due to external factors such as no certificate
+ with a suitable (extended)KeyUsage or curve or no PSK set.
+ * It is now possible to disable negotiation of truncated HMAC server-side
+ at runtime with ssl_set_truncated_hmac().
+ * Example programs for SSL client and server now disable SSLv3 by default.
+ * Example programs for SSL client and server now disable RC4 by default.
+ * Use platform.h in all test suites and programs.
+
+= PolarSSL 1.3.9 released 2014-10-20
+Security
+ * Lowest common hash was selected from signature_algorithms extension in
+ TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
+ * Remotely-triggerable memory leak when parsing some X.509 certificates
+ (server is not affected if it doesn't ask for a client certificate)
+ (found using Codenomicon Defensics).
+ * Remotely-triggerable memory leak when parsing crafted ClientHello
+ (not affected if ECC support was compiled out) (found using Codenomicon
+ Defensics).
+
+Bugfix
+ * Support escaping of commas in x509_string_to_names()
+ * Fix compile error in ssl_pthread_server (found by Julian Ospald).
+ * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
+ * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
+ * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
+ * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
+ are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
+ * Remove non-existent file from VS projects (found by Peter Vaskovic).
+ * ssl_read() could return non-application data records on server while
+ renegotation was pending, and on client when a HelloRequest was received.
+ * Server-initiated renegotiation would fail with non-blocking I/O if the
+ write callback returned WANT_WRITE when requesting renegotiation.
+ * ssl_close_notify() could send more than one message in some circumstances
+ with non-blocking I/O.
+ * Fix compiler warnings on iOS (found by Sander Niemeijer).
+ * x509_crt_parse() did not increase total_failed on PEM error
+ * Fix compile error with armcc in mpi_is_prime()
+ * Fix potential bad read in parsing ServerHello (found by Adrien
+ Vialletelle).
+
+Changes
+ * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
+ standard defining how to use SHA-2 with SSL 3.0).
+ * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
+ ambiguous on how to encode some packets with SSL 3.0).
+ * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
+ RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
+ * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
+ POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
+ * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
+ RSA keys.
+ * Accept spaces at end of line or end of buffer in base64_decode().
+ * X.509 certificates with more than one AttributeTypeAndValue per
+ RelativeDistinguishedName are not accepted any more.
+
+= PolarSSL 1.3.8 released 2014-07-11
+Security
+ * Fix length checking for AEAD ciphersuites (found by Codenomicon).
+ It was possible to crash the server (and client) using crafted messages
+ when a GCM suite was chosen.
+
+Features
+ * Add CCM module and cipher mode to Cipher Layer
+ * Support for CCM and CCM_8 ciphersuites
+ * Support for parsing and verifying RSASSA-PSS signatures in the X.509
+ modules (certificates, CRLs and CSRs).
+ * Blowfish in the cipher layer now supports variable length keys.
+ * Add example config.h for PSK with CCM, optimized for low RAM usage.
+ * Optimize for RAM usage in example config.h for NSA Suite B profile.
+ * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
+ from the default list (inactive by default).
+ * Add server-side enforcement of sent renegotiation requests
+ (ssl_set_renegotiation_enforced())
+ * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
+ ciphersuites to use and save some memory if the list is small.
+
+Changes
+ * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
+ required on some platforms (e.g. OpenBSD)
+ * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
+ against unwanted compiler optimizations
+ * md_list() now returns hashes strongest first
+ * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
+ strongest offered by client.
+ * All public contexts have _init() and _free() functions now for simpler
+ usage pattern
+
+Bugfix
+ * Fix in debug_print_msg()
+ * Enforce alignment in the buffer allocator even if buffer is not aligned
+ * Remove less-than-zero checks on unsigned numbers
+ * Stricter check on SSL ClientHello internal sizes compared to actual packet
+ size (found by TrustInSoft)
+ * Fix WSAStartup() return value check (found by Peter Vaskovic)
+ * Other minor issues (found by Peter Vaskovic)
+ * Fix symlink command for cross compiling with CMake (found by Andre
+ Heinecke)
+ * Fix DER output of gen_key app (found by Gergely Budai)
+ * Very small records were incorrectly rejected when truncated HMAC was in
+ use with some ciphersuites and versions (RC4 in all versions, CBC with
+ versions < TLS 1.1).
+ * Very large records using more than 224 bytes of padding were incorrectly
+ rejected with CBC-based ciphersuites and TLS >= 1.1
+ * Very large records using less padding could cause a buffer overread of up
+ to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
+ * Restore ability to use a v1 cert as a CA if trusted locally. (This had
+ been removed in 1.3.6.)
+ * Restore ability to locally trust a self-signed cert that is not a proper
+ CA for use as an end entity certificate. (This had been removed in
+ 1.3.6.)
+ * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
+ * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
+ interpret semicolons as comment delimiters (found by Barry K. Nathan).
+ * Fix off-by-one error in parsing Supported Point Format extension that
+ caused some handshakes to fail.
+ * Fix possible miscomputation of the premaster secret with DHE-PSK key
+ exchange that caused some handshakes to fail with other implementations.
+ (Failure rate <= 1/255 with common DHM moduli.)
+ * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
+ * Fix base64_decode() to return and check length correctly (in case of
+ tight buffers)
+ * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
+ by Hui Dong)
+
+= PolarSSL 1.3.7 released on 2014-05-02
+Features
+ * debug_set_log_mode() added to determine raw or full logging
+ * debug_set_threshold() added to ignore messages over threshold level
+ * version_check_feature() added to check for compile-time options at
+ run-time
+
+Changes
+ * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
+ checked and filled in the relevant module headers
+ * Debug module only outputs full lines instead of parts
+ * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
+ * AES-NI now compiles with "old" assemblers too
+ * Ciphersuites based on RC4 now have the lowest priority by default
+
+Bugfix
+ * Only iterate over actual certificates in ssl_write_certificate_request()
+ (found by Matthew Page)
+ * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
+ Karger)
+ * cert_write app should use subject of issuer certificate as issuer of cert
+ * Fix false reject in padding check in ssl_decrypt_buf() for CBC
+ ciphersuites, for full SSL frames of data.
+ * Improve interoperability by not writing extension length in ClientHello /
+ ServerHello when no extensions are present (found by Matthew Page)
+ * rsa_check_pubkey() now allows an E up to N
+ * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
+ * mpi_fill_random() was creating numbers larger than requested on
+ big-endian platform when size was not an integer number of limbs
+ * Fix dependencies issues in X.509 test suite.
+ * Some parts of ssl_tls.c were compiled even when the module was disabled.
+ * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
+ * Fix detection of Clang on some Apple platforms with CMake
+ (found by Barry K. Nathan)
+
+= PolarSSL 1.3.6 released on 2014-04-11
+
+Features
+ * Support for the ALPN SSL extension
+ * Add option 'use_dev_random' to gen_key application
+ * Enable verification of the keyUsage extension for CA and leaf
+ certificates (POLARSSL_X509_CHECK_KEY_USAGE)
+ * Enable verification of the extendedKeyUsage extension
+ (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
+
+Changes
+ * x509_crt_info() now prints information about parsed extensions as well
+ * pk_verify() now returns a specific error code when the signature is valid
+ but shorter than the supplied length.
+ * Use UTC time to check certificate validity.
+ * Reject certificates with times not in UTC, per RFC 5280.
+
+Security
+ * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
+ (Found by Watson Ladd.)
+ * The notAfter date of some certificates was no longer checked since 1.3.5.
+ This affects certificates in the user-supplied chain except the top
+ certificate. If the user-supplied chain contains only one certificates,
+ it is not affected (ie, its notAfter date is properly checked).
+ * Prevent potential NULL pointer dereference in ssl_read_record() (found by
+ TrustInSoft)
+
+Bugfix
+ * The length of various ClientKeyExchange messages was not properly checked.
+ * Some example server programs were not sending the close_notify alert.
+ * Potential memory leak in mpi_exp_mod() when error occurs during
+ calculation of RR.
+ * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
+ * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
+ Gergely Budai).
+ * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
+ (found by Gergely Budai)
+ * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
+ Shuo Chen).
+ * oid_get_numeric_string() used to truncate the output without returning an
+ error if the output buffer was just 1 byte too small.
+ * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
+ * Calling pk_debug() on an RSA-alt key would segfault.
+ * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
+ * Potential buffer overwrite in pem_write_buffer() because of low length
+ indication (found by Thijs Alkemade)
+ * EC curves constants, which should be only in ROM since 1.3.3, were also
+ stored in RAM due to missing 'const's (found by Gergely Budai).
+
+= PolarSSL 1.3.5 released on 2014-03-26
+Features
+ * HMAC-DRBG as a separate module
+ * Option to set the Curve preference order (disabled by default)
+ * Single Platform compatilibity layer (for memory / printf / fprintf)
+ * Ability to provide alternate timing implementation
+ * Ability to force the entropy module to use SHA-256 as its basis
+ (POLARSSL_ENTROPY_FORCE_SHA256)
+ * Testing script ssl-opt.sh added for testing 'live' ssl option
+ interoperability against OpenSSL and PolarSSL
+ * Support for reading EC keys that use SpecifiedECDomain in some cases.
+ * Entropy module now supports seed writing and reading
+
+Changes
+ * Deprecated the Memory layer
+ * entropy_add_source(), entropy_update_manual() and entropy_gather()
+ now thread-safe if POLARSSL_THREADING_C defined
+ * Improvements to the CMake build system, contributed by Julian Ospald.
+ * Work around a bug of the version of Clang shipped by Apple with Mavericks
+ that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
+ * Revamped the compat.sh interoperatibility script to include support for
+ testing against GnuTLS
+ * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
+ * Improvements to tests/Makefile, contributed by Oden Eriksson.
+
+Security
+ * Forbid change of server certificate during renegotiation to prevent
+ "triple handshake" attack when authentication mode is 'optional' (the
+ attack was already impossible when authentication is required).
+ * Check notBefore timestamp of certificates and CRLs from the future.
+ * Forbid sequence number wrapping
+ * Fixed possible buffer overflow with overlong PSK
+ * Possible remotely-triggered out-of-bounds memory access fixed (found by
+ TrustInSoft)
+
+Bugfix
+ * ecp_gen_keypair() does more tries to prevent failure because of
+ statistics
+ * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
+ * Fixed testing with out-of-source builds using cmake
+ * Fixed version-major intolerance in server
+ * Fixed CMake symlinking on out-of-source builds
+ * Fixed dependency issues in test suite
+ * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
+ * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
+ Alex Wilson.)
+ * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
+ * m_sleep() was sleeping twice too long on most Unix platforms.
+ * Fixed bug with session tickets and non-blocking I/O in the unlikely case
+ send() would return an EAGAIN error when sending the ticket.
+ * ssl_cache was leaking memory when reusing a timed out entry containing a
+ client certificate.
+ * ssl_srv was leaking memory when client presented a timed out ticket
+ containing a client certificate
+ * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
+ out_ctr failed
+ * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
+ of one of them failed
+ * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
+ * x509_get_current_time() uses localtime_r() to prevent thread issues
+
+= PolarSSL 1.3.4 released on 2014-01-27
+Features
+ * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
+ * Support for RIPEMD-160
+ * Support for AES CFB8 mode
+ * Support for deterministic ECDSA (RFC 6979)
+
+Bugfix
+ * Potential memory leak in bignum_selftest()
+ * Replaced expired test certificate
+ * ssl_mail_client now terminates lines with CRLF, instead of LF
+ * net module handles timeouts on blocking sockets better (found by Tilman
+ Sauerbeck)
+ * Assembly format fixes in bn_mul.h
+
+Security
+ * Missing MPI_CHK calls added around unguarded mpi calls (found by
+ TrustInSoft)
+
+= PolarSSL 1.3.3 released on 2013-12-31
+Features
+ * EC key generation support in gen_key app
+ * Support for adhering to client ciphersuite order preference
+ (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
+ * Support for Curve25519
+ * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
+ * Support for IPv6 in the NET module
+ * AES-NI support for AES, AES-GCM and AES key scheduling
+ * SSL Pthread-based server example added (ssl_pthread_server)
+
+Changes
+ * gen_prime() speedup
+ * Speedup of ECP multiplication operation
+ * Relaxed some SHA2 ciphersuite's version requirements
+ * Dropped use of readdir_r() instead of readdir() with threading support
+ * More constant-time checks in the RSA module
+ * Split off curves from ecp.c into ecp_curves.c
+ * Curves are now stored fully in ROM
+ * Memory usage optimizations in ECP module
+ * Removed POLARSSL_THREADING_DUMMY
+
+Bugfix
+ * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
+ * Fixed X.509 hostname comparison (with non-regular characters)
+ * SSL now gracefully handles missing RNG
+ * Missing defines / cases for RSA_PSK key exchange
+ * crypt_and_hash app checks MAC before final decryption
+ * Potential memory leak in ssl_ticket_keys_init()
+ * Memory leak in benchmark application
+ * Fixed x509_crt_parse_path() bug on Windows platforms
+ * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
+ TrustInSoft)
+ * Fixed potential overflow in certificate size verification in
+ ssl_write_certificate() (found by TrustInSoft)
+
+Security
+ * Possible remotely-triggered out-of-bounds memory access fixed (found by
+ TrustInSoft)
+
+= PolarSSL 1.3.2 released on 2013-11-04
+Features
+ * PK tests added to test framework
+ * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
+ * Support for Camellia-GCM mode and ciphersuites
+
+Changes
+ * Padding checks in cipher layer are now constant-time
+ * Value comparisons in SSL layer are now constant-time
+ * Support for serialNumber, postalAddress and postalCode in X509 names
+ * SSL Renegotiation was refactored
+
+Bugfix
+ * More stringent checks in cipher layer
+ * Server does not send out extensions not advertised by client
+ * Prevent possible alignment warnings on casting from char * to 'aligned *'
+ * Misc fixes and additions to dependency checks
+ * Const correctness
+ * cert_write with selfsign should use issuer_name as subject_name
+ * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
+ * Defines to handle UEFI environment under MSVC
+ * Server-side initiated renegotiations send HelloRequest
+
+= PolarSSL 1.3.1 released on 2013-10-15
+Features
+ * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
+ * Support for ECDHE-PSK key-exchange and ciphersuites
+ * Support for RSA-PSK key-exchange and ciphersuites
+
+Changes
+ * RSA blinding locks for a smaller amount of time
+ * TLS compression only allocates working buffer once
+ * Introduced POLARSSL_HAVE_READDIR_R for systems without it
+ * config.h is more script-friendly
+
+Bugfix
+ * Missing MSVC defines added
+ * Compile errors with POLARSSL_RSA_NO_CRT
+ * Header files with 'polarssl/'
+ * Const correctness
+ * Possible naming collision in dhm_context
+ * Better support for MSVC
+ * threading_set_alt() name
+ * Added missing x509write_crt_set_version()
+
+= PolarSSL 1.3.0 released on 2013-10-01
+Features
+ * Elliptic Curve Cryptography module added
+ * Elliptic Curve Diffie Hellman module added
+ * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
+ (ECDHE-based ciphersuites)
+ * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
+ (ECDSA-based ciphersuites)
+ * Ability to specify allowed ciphersuites based on the protocol version.
+ * PSK and DHE-PSK based ciphersuites added
+ * Memory allocation abstraction layer added
+ * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
+ * Threading abstraction layer added (dummy / pthread / alternate)
+ * Public Key abstraction layer added
+ * Parsing Elliptic Curve keys
+ * Parsing Elliptic Curve certificates
+ * Support for max_fragment_length extension (RFC 6066)
+ * Support for truncated_hmac extension (RFC 6066)
+ * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
+ (ISO/IEC 7816-4) padding and zero padding in the cipher layer
+ * Support for session tickets (RFC 5077)
+ * Certificate Request (CSR) generation with extensions (key_usage,
+ ns_cert_type)
+ * X509 Certificate writing with extensions (basic_constraints,
+ issuer_key_identifier, etc)
+ * Optional blinding for RSA, DHM and EC
+ * Support for multiple active certificate / key pairs in SSL servers for
+ the same host (Not to be confused with SNI!)
+
+Changes
+ * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
+ individually
+ * Introduced separate SSL Ciphersuites module that is based on
+ Cipher and MD information
+ * Internals for SSL module adapted to have separate IV pointer that is
+ dynamically set (Better support for hardware acceleration)
+ * Moved all OID functionality to a separate module. RSA function
+ prototypes for the RSA sign and verify functions changed as a result
+ * Split up the GCM module into a starts/update/finish cycle
+ * Client and server now filter sent and accepted ciphersuites on minimum
+ and maximum protocol version
+ * Ability to disable server_name extension (RFC 6066)
+ * Renamed error_strerror() to the less conflicting polarssl_strerror()
+ (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
+ * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
+ * All RSA operations require a random generator for blinding purposes
+ * X509 core refactored
+ * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
+ * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
+ * Support faulty X509 v1 certificates with extensions
+ (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
+
+Bugfix
+ * Fixed parse error in ssl_parse_certificate_request()
+ * zlib compression/decompression skipped on empty blocks
+ * Support for AIX header locations in net.c module
+ * Fixed file descriptor leaks
+
+Security
+ * RSA blinding on CRT operations to counter timing attacks
+ (found by Cyril Arnaud and Pierre-Alain Fouque)
+
+
+= Version 1.2.14 released 2015-05-??
+
+Security
+ * Fix potential invalid memory read in the server, that allows a client to
+ crash it remotely (found by Caj Larsson).
+ * Fix potential invalid memory read in certificate parsing, that allows a
+ client to crash the server remotely if client authentication is enabled
+ (found using Codenomicon Defensics).
+ * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
+ https://dl.acm.org/citation.cfm?id=2714625
+
+Bugfix
+ * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
+ * Fix hardclock() (only used in the benchmarking program) with some
+ versions of mingw64 (found by kxjhlele).
+ * Fix warnings from mingw64 in timing.c (found by kxjklele).
+ * Fix potential unintended sign extension in asn1_get_len() on 64-bit
+ platforms (found with Coverity Scan).
+
+= Version 1.2.13 released 2015-02-16
+Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
+ this will be made in the 1.2 branch at this point.
+
+Security
+ * Fix remotely-triggerable uninitialised pointer dereference caused by
+ crafted X.509 certificate (TLS server is not affected if it doesn't ask
+ for a client certificate) (found using Codenomicon Defensics).
+ * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
+ (TLS server is not affected if it doesn't ask for a client certificate)
+ (found using Codenomicon Defensics).
+ * Fix potential stack overflow while parsing crafted X.509 certificates
+ (TLS server is not affected if it doesn't ask for a client certificate)
+ found using Codenomicon Defensics).
+ * Fix buffer overread of size 1 when parsing crafted X.509 certificates
+ (TLS server is not affected if it doesn't ask for a client certificate).
+
+Bugfix
+ * Fix potential undefined behaviour in Camellia.
+ * Fix memory leaks in PKCS#5 and PKCS#12.
+ * Stack buffer overflow if ctr_drbg_update() is called with too large
+ add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
+ * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
+ in 1.2.12).
+ * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
+ Peter Vaskovic).
+ * Fix assembly selection for MIPS64 (thanks to James Cowgill).
+ * ssl_get_verify_result() now works even if the handshake was aborted due
+ to a failed verification (found by Fredrik Axelsson).
+ * Skip writing and parsing signature_algorithm extension if none of the
+ key exchanges enabled needs certificates. This fixes a possible interop
+ issue with some servers when a zero-length extension was sent. (Reported
+ by Peter Dettman.)
+ * On a 0-length input, base64_encode() did not correctly set output length
+ (found by Hendrik van den Boogaard).
+
+Changes
+ * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
+ * Forbid repeated extensions in X.509 certificates.
+ * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
+ length of an X.509 verification chain (default = 8).
+= Version 1.2.12 released 2014-10-24
+
+Security
+ * Remotely-triggerable memory leak when parsing some X.509 certificates
+ (server is not affected if it doesn't ask for a client certificate).
+ (Found using Codenomicon Defensics.)
+
+Bugfix
+ * Fix potential bad read in parsing ServerHello (found by Adrien
+ Vialletelle).
+ * ssl_close_notify() could send more than one message in some circumstances
+ with non-blocking I/O.
+ * x509_crt_parse() did not increase total_failed on PEM error
+ * Fix compiler warnings on iOS (found by Sander Niemeijer).
+ * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
+ * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
+ * ssl_read() could return non-application data records on server while
+ renegotation was pending, and on client when a HelloRequest was received.
+ * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
+
+Changes
+ * X.509 certificates with more than one AttributeTypeAndValue per
+ RelativeDistinguishedName are not accepted any more.
+ * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
+ POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
+ * Accept spaces at end of line or end of buffer in base64_decode().
+
+= Version 1.2.11 released 2014-07-11
+Features
+ * Entropy module now supports seed writing and reading
+
+Changes
+ * Introduced POLARSSL_HAVE_READDIR_R for systems without it
+ * Improvements to the CMake build system, contributed by Julian Ospald.
+ * Work around a bug of the version of Clang shipped by Apple with Mavericks
+ that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
+ * Improvements to tests/Makefile, contributed by Oden Eriksson.
+ * Use UTC time to check certificate validity.
+ * Reject certificates with times not in UTC, per RFC 5280.
+ * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
+ against unwanted compiler optimizations
+
+Security
+ * Forbid change of server certificate during renegotiation to prevent
+ "triple handshake" attack when authentication mode is optional (the
+ attack was already impossible when authentication is required).
+ * Check notBefore timestamp of certificates and CRLs from the future.
+ * Forbid sequence number wrapping
+ * Prevent potential NULL pointer dereference in ssl_read_record() (found by
+ TrustInSoft)
+ * Fix length checking for AEAD ciphersuites (found by Codenomicon).
+ It was possible to crash the server (and client) using crafted messages
+ when a GCM suite was chosen.
+
+Bugfix
+ * Fixed X.509 hostname comparison (with non-regular characters)
+ * SSL now gracefully handles missing RNG
+ * crypt_and_hash app checks MAC before final decryption
+ * Fixed x509_crt_parse_path() bug on Windows platforms
+ * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
+ TrustInSoft)
+ * Fixed potential overflow in certificate size verification in
+ ssl_write_certificate() (found by TrustInSoft)
+ * Fix ASM format in bn_mul.h
+ * Potential memory leak in bignum_selftest()
+ * Replaced expired test certificate
+ * ssl_mail_client now terminates lines with CRLF, instead of LF
+ * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
+ * Fixed testing with out-of-source builds using cmake
+ * Fixed version-major intolerance in server
+ * Fixed CMake symlinking on out-of-source builds
+ * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
+ Alex Wilson.)
+ * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
+ out_ctr failed
+ * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
+ of one of them failed
+ * x509_get_current_time() uses localtime_r() to prevent thread issues
+ * Some example server programs were not sending the close_notify alert.
+ * Potential memory leak in mpi_exp_mod() when error occurs during
+ calculation of RR.
+ * Improve interoperability by not writing extension length in ClientHello
+ when no extensions are present (found by Matthew Page)
+ * rsa_check_pubkey() now allows an E up to N
+ * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
+ * mpi_fill_random() was creating numbers larger than requested on
+ big-endian platform when size was not an integer number of limbs
+ * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
+ * Stricter check on SSL ClientHello internal sizes compared to actual packet
+ size (found by TrustInSoft)
+ * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
+ * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
+ interpret semicolons as comment delimiters (found by Barry K. Nathan).
+ * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
+ * Fix base64_decode() to return and check length correctly (in case of
+ tight buffers)
+
+= Version 1.2.10 released 2013-10-07
+Changes
+ * Changed RSA blinding to a slower but thread-safe version
+
+Bugfix
+ * Fixed memory leak in RSA as a result of introduction of blinding
+ * Fixed ssl_pkcs11_decrypt() prototype
+ * Fixed MSVC project files
+
+= Version 1.2.9 released 2013-10-01
+Changes
+ * x509_verify() now case insensitive for cn (RFC 6125 6.4)
+
+Bugfix
+ * Fixed potential memory leak when failing to resume a session
+ * Fixed potential file descriptor leaks (found by Remi Gacogne)
+ * Minor fixes
+
+Security
+ * Fixed potential heap buffer overflow on large hostname setting
+ * Fixed potential negative value misinterpretation in load_file()
+ * RSA blinding on CRT operations to counter timing attacks
+ (found by Cyril Arnaud and Pierre-Alain Fouque)
+
+= Version 1.2.8 released 2013-06-19
+Features
+ * Parsing of PKCS#8 encrypted private key files
+ * PKCS#12 PBE and derivation functions
+ * Centralized module option values in config.h to allow user-defined
+ settings without editing header files by using POLARSSL_CONFIG_OPTIONS
+
+Changes
+ * HAVEGE random generator disabled by default
+ * Internally split up x509parse_key() into a (PEM) handler function
+ and specific DER parser functions for the PKCS#1 and unencrypted
+ PKCS#8 private key formats
+ * Added mechanism to provide alternative implementations for all
+ symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
+ config.h)
+ * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
+ old PBKDF2 module
+
+Bugfix
+ * Secure renegotiation extension should only be sent in case client
+ supports secure renegotiation
+ * Fixed offset for cert_type list in ssl_parse_certificate_request()
+ * Fixed const correctness issues that have no impact on the ABI
+ * x509parse_crt() now better handles PEM error situations
+ * ssl_parse_certificate() now calls x509parse_crt_der() directly
+ instead of the x509parse_crt() wrapper that can also parse PEM
+ certificates
+ * x509parse_crtpath() is now reentrant and uses more portable stat()
+ * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
+ * Fixed values for 2-key Triple DES in cipher layer
+ * ssl_write_certificate_request() can handle empty ca_chain
+
+Security
+ * A possible DoS during the SSL Handshake, due to faulty parsing of
+ PEM-encoded certificates has been fixed (found by Jack Lloyd)
+
+= Version 1.2.7 released 2013-04-13
+Features
+ * Ability to specify allowed ciphersuites based on the protocol version.
+
+Changes
+ * Default Blowfish keysize is now 128-bits
+ * Test suites made smaller to accommodate Raspberry Pi
+
+Bugfix
+ * Fix for MPI assembly for ARM
+ * GCM adapted to support sizes > 2^29
+
+= Version 1.2.6 released 2013-03-11
+Bugfix
+ * Fixed memory leak in ssl_free() and ssl_reset() for active session
+ * Corrected GCM counter incrementation to use only 32-bits instead of
+ 128-bits (found by Yawning Angel)
+ * Fixes for 64-bit compilation with MS Visual Studio
+ * Fixed net_bind() for specified IP addresses on little endian systems
+ * Fixed assembly code for ARM (Thumb and regular) for some compilers
+
+Changes
+ * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
+ rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
+ PKCS#1 v2.1 functions
+ * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
+ or rsa_rsaes_oaep_decrypt()
+ * Re-added handling for SSLv2 Client Hello when the define
+ POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
+ * The SSL session cache module (ssl_cache) now also retains peer_cert
+ information (not the entire chain)
+
+Security
+ * Removed further timing differences during SSL message decryption in
+ ssl_decrypt_buf()
+ * Removed timing differences due to bad padding from
+ rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
+ operations
+
+= Version 1.2.5 released 2013-02-02
+Changes
+ * Allow enabling of dummy error_strerror() to support some use-cases
+ * Debug messages about padding errors during SSL message decryption are
+ disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
+ * Sending of security-relevant alert messages that do not break
+ interoperability can be switched on/off with the flag
+ POLARSSL_SSL_ALL_ALERT_MESSAGES
+
+Security
+ * Removed timing differences during SSL message decryption in
+ ssl_decrypt_buf() due to badly formatted padding
+
+= Version 1.2.4 released 2013-01-25
+Changes
+ * More advanced SSL ciphersuite representation and moved to more dynamic
+ SSL core
+ * Added ssl_handshake_step() to allow single stepping the handshake process
+
+Bugfix
+ * Memory leak when using RSA_PKCS_V21 operations fixed
+ * Handle future version properly in ssl_write_certificate_request()
+ * Correctly handle CertificateRequest message in client for <= TLS 1.1
+ without DN list
+
+= Version 1.2.3 released 2012-11-26
+Bugfix
+ * Server not always sending correct CertificateRequest message
+
+= Version 1.2.2 released 2012-11-24
+Changes
+ * Added p_hw_data to ssl_context for context specific hardware acceleration
+ data
+ * During verify trust-CA is only checked for expiration and CRL presence
+
+Bugfixes
+ * Fixed client authentication compatibility
+ * Fixed dependency on POLARSSL_SHA4_C in SSL modules
+
+= Version 1.2.1 released 2012-11-20
+Changes
+ * Depth that the certificate verify callback receives is now numbered
+ bottom-up (Peer cert depth is 0)
+
+Bugfixes
+ * Fixes for MSVC6
+ * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
+ * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
+ Pégourié-Gonnard)
+ * Fixed possible segfault in mpi_shift_r() (found by Manuel
+ Pégourié-Gonnard)
+ * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
+
+= Version 1.2.0 released 2012-10-31
+Features
+ * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
+ ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
+ default!
+ * Added support for wildcard certificates
+ * Added support for multi-domain certificates through the X509 Subject
+ Alternative Name extension
+ * Added preliminary ASN.1 buffer writing support
+ * Added preliminary X509 Certificate Request writing support
+ * Added key_app_writer example application
+ * Added cert_req example application
+ * Added base Galois Counter Mode (GCM) for AES
+ * Added TLS 1.2 support (RFC 5246)
+ * Added GCM suites to TLS 1.2 (RFC 5288)
+ * Added commandline error code convertor (util/strerror)
+ * Added support for Hardware Acceleration hooking in SSL/TLS
+ * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
+ example application (programs/ssl/o_p_test) (requires OpenSSL)
+ * Added X509 CA Path support
+ * Added Thumb assembly optimizations
+ * Added DEFLATE compression support as per RFC3749 (requires zlib)
+ * Added blowfish algorithm (Generic and cipher layer)
+ * Added PKCS#5 PBKDF2 key derivation function
+ * Added Secure Renegotiation (RFC 5746)
+ * Added predefined DHM groups from RFC 5114
+ * Added simple SSL session cache implementation
+ * Added ServerName extension parsing (SNI) at server side
+ * Added option to add minimum accepted SSL/TLS protocol version
+
+Changes
+ * Removed redundant POLARSSL_DEBUG_MSG define
+ * AES code only check for Padlock once
+ * Fixed const-correctness mpi_get_bit()
+ * Documentation for mpi_lsb() and mpi_msb()
+ * Moved out_msg to out_hdr + 32 to support hardware acceleration
+ * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
+ to not match CN if subjectAltName extension is present (Closes ticket #56)
+ * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
+ POLARSSL_MODE_CFB, to also handle different block size CFB modes.
+ * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
+ * Revamped session resumption handling
+ * Generalized external private key implementation handling (like PKCS#11)
+ in SSL/TLS
+ * Revamped x509_verify() and the SSL f_vrfy callback implementations
+ * Moved from unsigned long to fixed width uint32_t types throughout code
+ * Renamed ciphersuites naming scheme to IANA reserved names
+
+Bugfix
+ * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
+ Hui Dong)
+ * Fixed potential heap corruption in x509_name allocation
+ * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
+ * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
+ #52)
+ * Handle encryption with private key and decryption with public key as per
+ RFC 2313
+ * Handle empty certificate subject names
+ * Prevent reading over buffer boundaries on X509 certificate parsing
+ * mpi_add_abs() now correctly handles adding short numbers to long numbers
+ with carry rollover (found by Ruslan Yushchenko)
+ * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
+ * Fixed MPI assembly for SPARC64 platform
+
+Security
+ * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
+ Vanderbeken)
+
+= Version 1.1.8 released on 2013-10-01
+Bugfix
+ * Fixed potential memory leak when failing to resume a session
+ * Fixed potential file descriptor leaks
+
+Security
+ * Potential buffer-overflow for ssl_read_record() (independently found by
+ both TrustInSoft and Paul Brodeur of Leviathan Security Group)
+ * Potential negative value misinterpretation in load_file()
+ * Potential heap buffer overflow on large hostname setting
+
+= Version 1.1.7 released on 2013-06-19
+Changes
+ * HAVEGE random generator disabled by default
+
+Bugfix
+ * x509parse_crt() now better handles PEM error situations
+ * ssl_parse_certificate() now calls x509parse_crt_der() directly
+ instead of the x509parse_crt() wrapper that can also parse PEM
+ certificates
+ * Fixed values for 2-key Triple DES in cipher layer
+ * ssl_write_certificate_request() can handle empty ca_chain
+
+Security
+ * A possible DoS during the SSL Handshake, due to faulty parsing of
+ PEM-encoded certificates has been fixed (found by Jack Lloyd)
+
+= Version 1.1.6 released on 2013-03-11
+Bugfix
+ * Fixed net_bind() for specified IP addresses on little endian systems
+
+Changes
+ * Allow enabling of dummy error_strerror() to support some use-cases
+ * Debug messages about padding errors during SSL message decryption are
+ disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
+
+Security
+ * Removed timing differences during SSL message decryption in
+ ssl_decrypt_buf()
+ * Removed timing differences due to bad padding from
+ rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
+ operations
+
+= Version 1.1.5 released on 2013-01-16
+Bugfix
+ * Fixed MPI assembly for SPARC64 platform
+ * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
+ * mpi_add_abs() now correctly handles adding short numbers to long numbers
+ with carry rollover
+ * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
+ * Prevent reading over buffer boundaries on X509 certificate parsing
+ * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
+ #52)
+ * Fixed possible segfault in mpi_shift_r() (found by Manuel
+ Pégourié-Gonnard)
+ * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
+ Pégourié-Gonnard)
+ * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
+ * Memory leak when using RSA_PKCS_V21 operations fixed
+ * Handle encryption with private key and decryption with public key as per
+ RFC 2313
+ * Fixes for MSVC6
+
+Security
+ * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
+ Vanderbeken)
+
+= Version 1.1.4 released on 2012-05-31
+Bugfix
+ * Correctly handle empty SSL/TLS packets (Found by James Yonan)
+ * Fixed potential heap corruption in x509_name allocation
+ * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
+
+= Version 1.1.3 released on 2012-04-29
+Bugfix
+ * Fixed random MPI generation to not generate more size than requested.
+
+= Version 1.1.2 released on 2012-04-26
+Bugfix
+ * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
+ Hui Dong)
+
+Security
+ * Fixed potential memory corruption on miscrafted client messages (found by
+ Frama-C team at CEA LIST)
+ * Fixed generation of DHM parameters to correct length (found by Ruslan
+ Yushchenko)
+
+= Version 1.1.1 released on 2012-01-23
+Bugfix
+ * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
+ (Closes ticket #47, found by Hugo Leisink)
+ * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
+ * Fixed multiple compiler warnings for VS6 and armcc
+ * Fixed bug in CTR_CRBG selftest
+
+= Version 1.1.0 released on 2011-12-22
+Features
+ * Added ssl_session_reset() to allow better multi-connection pools of
+ SSL contexts without needing to set all non-connection-specific
+ data and pointers again. Adapted ssl_server to use this functionality.
+ * Added ssl_set_max_version() to allow clients to offer a lower maximum
+ supported version to a server to help buggy server implementations.
+ (Closes ticket #36)
+ * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
+ introspection functions (Closes ticket #40)
+ * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
+ * Added a generic entropy accumulator that provides support for adding
+ custom entropy sources and added some generic and platform dependent
+ entropy sources
+
+Changes
+ * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
+ * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
+ encryption and private key for decryption. (Closes ticket #34)
+ * Inceased maximum size of ASN1 length reads to 32-bits.
+ * Added an EXPLICIT tag number parameter to x509_get_ext()
+ * Added a separate CRL entry extension parsing function
+ * Separated the ASN.1 parsing code from the X.509 specific parsing code.
+ So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
+ * Changed the defined key-length of DES ciphers in cipher.h to include the
+ parity bits, to prevent mistakes in copying data. (Closes ticket #33)
+ * Loads of minimal changes to better support WINCE as a build target
+ (Credits go to Marco Lizza)
+ * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
+ trade-off
+ * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
+ management (Closes ticket #44)
+ * Changed the used random function pointer to more flexible format. Renamed
+ havege_rand() to havege_random() to prevent mistakes. Lots of changes as
+ a consequence in library code and programs
+ * Moved all examples programs to use the new entropy and CTR_DRBG
+ * Added permissive certificate parsing to x509parse_crt() and
+ x509parse_crtfile(). With permissive parsing the parsing does not stop on
+ encountering a parse-error. Beware that the meaning of return values has
+ changed!
+ * All error codes are now negative. Even on mermory failures and IO errors.
+
+Bugfix
+ * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
+ ticket #37)
+ * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
+ before version numbers
+ * Allowed X509 key usage parsing to accept 4 byte values instead of the
+ standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
+ * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
+ smaller than the hash length. (Closes ticket #41)
+ * If certificate serial is longer than 32 octets, serial number is now
+ appended with '....' after first 28 octets
+ * Improved build support for s390x and sparc64 in bignum.h
+ * Fixed MS Visual C++ name clash with int64 in sha4.h
+ * Corrected removal of leading "00:" in printing serial numbers in
+ certificates and CRLs
+
+= Version 1.0.0 released on 2011-07-27
+Features
+ * Expanded cipher layer with support for CFB128 and CTR mode
+ * Added rsa_encrypt and rsa_decrypt simple example programs.
+
+Changes
+ * The generic cipher and message digest layer now have normal error
+ codes instead of integers
+
+Bugfix
+ * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
+ #18)
+
+= Version 0.99-pre5 released on 2011-05-26
+Features
+ * Added additional Cipher Block Modes to symmetric ciphers
+ (AES CTR, Camellia CTR, XTEA CBC) including the option to
+ enable and disable individual modes when needed
+ * Functions requiring File System functions can now be disabled
+ by undefining POLARSSL_FS_IO
+ * A error_strerror function() has been added to translate between
+ error codes and their description.
+ * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
+ functions.
+ * Added ssl_mail_client and ssl_fork_server as example programs.
+
+Changes
+ * Major argument / variable rewrite. Introduced use of size_t
+ instead of int for buffer lengths and loop variables for
+ better unsigned / signed use. Renamed internal bigint types
+ t_int and t_dbl to t_uint and t_udbl in the process
+ * mpi_init() and mpi_free() now only accept a single MPI
+ argument and do not accept variable argument lists anymore.
+ * The error codes have been remapped and combining error codes
+ is now done with a PLUS instead of an OR as error codes
+ used are negative.
+ * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
+ net_recv() now returns 0 on EOF instead of
+ POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
+ POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
+ ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
+ after the handshake.
+ * Network functions now return POLARSSL_ERR_NET_WANT_READ or
+ POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
+ POLARSSL_ERR_NET_TRY_AGAIN
+
+= Version 0.99-pre4 released on 2011-04-01
+Features
+ * Added support for PKCS#1 v2.1 encoding and thus support
+ for the RSAES-OAEP and RSASSA-PSS operations.
+ * Reading of Public Key files incorporated into default x509
+ functionality as well.
+ * Added mpi_fill_random() for centralized filling of big numbers
+ with random data (Fixed ticket #10)
+
+Changes
+ * Debug print of MPI now removes leading zero octets and
+ displays actual bit size of the value.
+ * x509parse_key() (and as a consequence x509parse_keyfile())
+ does not zeroize memory in advance anymore. Use rsa_init()
+ before parsing a key or keyfile!
+
+Bugfix
+ * Debug output of MPI's now the same independent of underlying
+ platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
+ Kiilerich and Mihai Militaru)
+ * Fixed bug in ssl_write() when flushing old data (Fixed ticket
+ #18, found by Nikolay Epifanov)
+ * Fixed proper handling of RSASSA-PSS verification with variable
+ length salt lengths
+
+= Version 0.99-pre3 released on 2011-02-28
+This release replaces version 0.99-pre2 which had possible copyright issues.
+Features
+ * Parsing PEM private keys encrypted with DES and AES
+ are now supported as well (Fixes ticket #5)
+ * Added crl_app program to allow easy reading and
+ printing of X509 CRLs from file
+
+Changes
+ * Parsing of PEM files moved to separate module (Fixes
+ ticket #13). Also possible to remove PEM support for
+ systems only using DER encoding
+
+Bugfixes
+ * Corrected parsing of UTCTime dates before 1990 and
+ after 1950
+ * Support more exotic OID's when parsing certificates
+ (found by Mads Kiilerich)
+ * Support more exotic name representations when parsing
+ certificates (found by Mads Kiilerich)
+ * Replaced the expired test certificates
+ * Do not bail out if no client certificate specified. Try
+ to negotiate anonymous connection (Fixes ticket #12,
+ found by Boris Krasnovskiy)
+
+Security fixes
+ * Fixed a possible Man-in-the-Middle attack on the
+ Diffie Hellman key exchange (thanks to Larry Highsmith,
+ Subreption LLC)
+
+= Version 0.99-pre1 released on 2011-01-30
+Features
+Note: Most of these features have been donated by Fox-IT
+ * Added Doxygen source code documentation parts
+ * Added reading of DHM context from memory and file
+ * Improved X509 certificate parsing to include extended
+ certificate fields, including Key Usage
+ * Improved certificate verification and verification
+ against the available CRLs
+ * Detection for DES weak keys and parity bits added
+ * Improvements to support integration in other
+ applications:
+ + Added generic message digest and cipher wrapper
+ + Improved information about current capabilities,
+ status, objects and configuration
+ + Added verification callback on certificate chain
+ verification to allow external blacklisting
+ + Additional example programs to show usage
+ * Added support for PKCS#11 through the use of the
+ libpkcs11-helper library
+
+Changes
+ * x509parse_time_expired() checks time in addition to
+ the existing date check
+ * The ciphers member of ssl_context and the cipher member
+ of ssl_session have been renamed to ciphersuites and
+ ciphersuite respectively. This clarifies the difference
+ with the generic cipher layer and is better naming
+ altogether
+
+= Version 0.14.0 released on 2010-08-16
+Features
+ * Added support for SSL_EDH_RSA_AES_128_SHA and
+ SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
+ * Added compile-time and run-time version information
+ * Expanded ssl_client2 arguments for more flexibility
+ * Added support for TLS v1.1
+
+Changes
+ * Made Makefile cleaner
+ * Removed dependency on rand() in rsa_pkcs1_encrypt().
+ Now using random fuction provided to function and
+ changed the prototype of rsa_pkcs1_encrypt(),
+ rsa_init() and rsa_gen_key().
+ * Some SSL defines were renamed in order to avoid
+ future confusion
+
+Bug fixes
+ * Fixed CMake out of source build for tests (found by
+ kkert)
+ * rsa_check_private() now supports PKCS1v2 keys as well
+ * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
+ generator
+
+= Version 0.13.1 released on 2010-03-24
+Bug fixes
+ * Fixed Makefile in library that was mistakenly merged
+ * Added missing const string fixes
+
+= Version 0.13.0 released on 2010-03-21
+Features
+ * Added option parsing for host and port selection to
+ ssl_client2
+ * Added support for GeneralizedTime in X509 parsing
+ * Added cert_app program to allow easy reading and
+ printing of X509 certificates from file or SSL
+ connection.
+
+Changes
+ * Added const correctness for main code base
+ * X509 signature algorithm determination is now
+ in a function to allow easy future expansion
+ * Changed symmetric cipher functions to
+ identical interface (returning int result values)
+ * Changed ARC4 to use separate input/output buffer
+ * Added reset function for HMAC context as speed-up
+ for specific use-cases
+
+Bug fixes
+ * Fixed bug resulting in failure to send the last
+ certificate in the chain in ssl_write_certificate() and
+ ssl_write_certificate_request() (found by fatbob)
+ * Added small fixes for compiler warnings on a Mac
+ (found by Frank de Brabander)
+ * Fixed algorithmic bug in mpi_is_prime() (found by
+ Smbat Tonoyan)
+
+= Version 0.12.1 released on 2009-10-04
+Changes
+ * Coverage test definitions now support 'depends_on'
+ tagging system.
+ * Tests requiring specific hashing algorithms now honor
+ the defines.
+
+Bug fixes
+ * Changed typo in #ifdef in x509parse.c (found
+ by Eduardo)
+
+= Version 0.12.0 released on 2009-07-28
+Features
+ * Added CMake makefiles as alternative to regular Makefiles.
+ * Added preliminary Code Coverage tests for AES, ARC4,
+ Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
+ Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
+ and X509parse.
+
+Changes
+ * Error codes are not (necessarily) negative. Keep
+ this is mind when checking for errors.
+ * RSA_RAW renamed to SIG_RSA_RAW for consistency.
+ * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
+ * Changed interface for AES and Camellia setkey functions
+ to indicate invalid key lengths.
+
+Bug fixes
+ * Fixed include location of endian.h on FreeBSD (found by
+ Gabriel)
+ * Fixed include location of endian.h and name clash on
+ Apples (found by Martin van Hensbergen)
+ * Fixed HMAC-MD2 by modifying md2_starts(), so that the
+ required HMAC ipad and opad variables are not cleared.
+ (found by code coverage tests)
+ * Prevented use of long long in bignum if
+ POLARSSL_HAVE_LONGLONG not defined (found by Giles
+ Bathgate).
+ * Fixed incorrect handling of negative strings in
+ mpi_read_string() (found by code coverage tests).
+ * Fixed segfault on handling empty rsa_context in
+ rsa_check_pubkey() and rsa_check_privkey() (found by
+ code coverage tests).
+ * Fixed incorrect handling of one single negative input
+ value in mpi_add_abs() (found by code coverage tests).
+ * Fixed incorrect handling of negative first input
+ value in mpi_sub_abs() (found by code coverage tests).
+ * Fixed incorrect handling of negative first input
+ value in mpi_mod_mpi() and mpi_mod_int(). Resulting
+ change also affects mpi_write_string() (found by code
+ coverage tests).
+ * Corrected is_prime() results for 0, 1 and 2 (found by
+ code coverage tests).
+ * Fixed Camellia and XTEA for 64-bit Windows systems.
+
+= Version 0.11.1 released on 2009-05-17
+ * Fixed missing functionality for SHA-224, SHA-256, SHA384,
+ SHA-512 in rsa_pkcs1_sign()
+
+= Version 0.11.0 released on 2009-05-03
+ * Fixed a bug in mpi_gcd() so that it also works when both
+ input numbers are even and added testcases to check
+ (found by Pierre Habouzit).
+ * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
+ one way hash functions with the PKCS#1 v1.5 signing and
+ verification.
+ * Fixed minor bug regarding mpi_gcd located within the
+ POLARSSL_GENPRIME block.
+ * Fixed minor memory leak in x509parse_crt() and added better
+ handling of 'full' certificate chains (found by Mathias
+ Olsson).
+ * Centralized file opening and reading for x509 files into
+ load_file()
+ * Made definition of net_htons() endian-clean for big endian
+ systems (Found by Gernot).
+ * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
+ padlock and timing code.
+ * Fixed an off-by-one buffer allocation in ssl_set_hostname()
+ responsible for crashes and unwanted behaviour.
+ * Added support for Certificate Revocation List (CRL) parsing.
+ * Added support for CRL revocation to x509parse_verify() and
+ SSL/TLS code.
+ * Fixed compatibility of XTEA and Camellia on a 64-bit system
+ (found by Felix von Leitner).
+
+= Version 0.10.0 released on 2009-01-12
+ * Migrated XySSL to PolarSSL
+ * Added XTEA symmetric cipher
+ * Added Camellia symmetric cipher
+ * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
+ SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
+ * Fixed dangerous bug that can cause a heap overflow in
+ rsa_pkcs1_decrypt (found by Christophe Devine)
+
+================================================================
+XySSL ChangeLog
+
+= Version 0.9 released on 2008-03-16
+
+ * Added support for ciphersuite: SSL_RSA_AES_128_SHA
+ * Enabled support for large files by default in aescrypt2.c
+ * Preliminary openssl wrapper contributed by David Barrett
+ * Fixed a bug in ssl_write() that caused the same payload to
+ be sent twice in non-blocking mode when send returns EAGAIN
+ * Fixed ssl_parse_client_hello(): session id and challenge must
+ not be swapped in the SSLv2 ClientHello (found by Greg Robson)
+ * Added user-defined callback debug function (Krystian Kolodziej)
+ * Before freeing a certificate, properly zero out all cert. data
+ * Fixed the "mode" parameter so that encryption/decryption are
+ not swapped on PadLock; also fixed compilation on older versions
+ of gcc (bug reported by David Barrett)
+ * Correctly handle the case in padlock_xcryptcbc() when input or
+ ouput data is non-aligned by falling back to the software
+ implementation, as VIA Nehemiah cannot handle non-aligned buffers
+ * Fixed a memory leak in x509parse_crt() which was reported by Greg
+ Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
+ Matthew Page who reported several bugs
+ * Fixed x509_get_ext() to accept some rare certificates which have
+ an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
+ * Added support on the client side for the TLS "hostname" extension
+ (patch contributed by David Patino)
+ * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
+ string is passed as the CN (bug reported by spoofy)
+ * Added an option to enable/disable the BN assembly code
+ * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
+ * Disabled obsolete hash functions by default (MD2, MD4); updated
+ selftest and benchmark to not test ciphers that have been disabled
+ * Updated x509parse_cert_info() to correctly display byte 0 of the
+ serial number, setup correct server port in the ssl client example
+ * Fixed a critical denial-of-service with X.509 cert. verification:
+ peer may cause xyssl to loop indefinitely by sending a certificate
+ for which the RSA signature check fails (bug reported by Benoit)
+ * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
+ HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
+ * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
+ * Modified ssl_parse_client_key_exchange() to protect against
+ Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
+ as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
+ * Updated rsa_gen_key() so that ctx->N is always nbits in size
+ * Fixed assembly PPC compilation errors on Mac OS X, thanks to
+ David Barrett and Dusan Semen
+
+= Version 0.8 released on 2007-10-20
+
+ * Modified the HMAC functions to handle keys larger
+ than 64 bytes, thanks to Stephane Desneux and gary ng
+ * Fixed ssl_read_record() to properly update the handshake
+ message digests, which fixes IE6/IE7 client authentication
+ * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
+ * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
+ * Added user-defined callbacks for handling I/O and sessions
+ * Added lots of debugging output in the SSL/TLS functions
+ * Added preliminary X.509 cert. writing by Pascal Vizeli
+ * Added preliminary support for the VIA PadLock routines
+ * Added AES-CFB mode of operation, contributed by chmike
+ * Added an SSL/TLS stress testing program (ssl_test.c)
+ * Updated the RSA PKCS#1 code to allow choosing between
+ RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
+ * Updated ssl_read() to skip 0-length records from OpenSSL
+ * Fixed the make install target to comply with *BSD make
+ * Fixed a bug in mpi_read_binary() on 64-bit platforms
+ * mpi_is_prime() speedups, thanks to Kevin McLaughlin
+ * Fixed a long standing memory leak in mpi_is_prime()
+ * Replaced realloc with malloc in mpi_grow(), and set
+ the sign of zero as positive in mpi_init() (reported
+ by Jonathan M. McCune)
+
+= Version 0.7 released on 2007-07-07
+
+ * Added support for the MicroBlaze soft-core processor
+ * Fixed a bug in ssl_tls.c which sometimes prevented SSL
+ connections from being established with non-blocking I/O
+ * Fixed a couple bugs in the VS6 and UNIX Makefiles
+ * Fixed the "PIC register ebx clobbered in asm" bug
+ * Added HMAC starts/update/finish support functions
+ * Added the SHA-224, SHA-384 and SHA-512 hash functions
+ * Fixed the net_set_*block routines, thanks to Andreas
+ * Added a few demonstration programs: md5sum, sha1sum,
+ dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
+ * Added new bignum import and export helper functions
+ * Rewrote README.txt in program/ssl/ca to better explain
+ how to create a test PKI
+
+= Version 0.6 released on 2007-04-01
+
+ * Ciphers used in SSL/TLS can now be disabled at compile
+ time, to reduce the memory footprint on embedded systems
+ * Added multiply assembly code for the TriCore and modified
+ havege_struct for this processor, thanks to David Patiño
+ * Added multiply assembly code for 64-bit PowerPCs,
+ thanks to Peking University and the OSU Open Source Lab
+ * Added experimental support of Quantum Cryptography
+ * Added support for autoconf, contributed by Arnaud Cornet
+ * Fixed "long long" compilation issues on IA-64 and PPC64
+ * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
+ was not being correctly defined on ARM and MIPS
+
+= Version 0.5 released on 2007-03-01
+
+ * Added multiply assembly code for SPARC and Alpha
+ * Added (beta) support for non-blocking I/O operations
+ * Implemented session resuming and client authentication
+ * Fixed some portability issues on WinCE, MINIX 3, Plan9
+ (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
+ * Improved the performance of the EDH key exchange
+ * Fixed a bug that caused valid packets with a payload
+ size of 16384 bytes to be rejected
+
+= Version 0.4 released on 2007-02-01
+
+ * Added support for Ephemeral Diffie-Hellman key exchange
+ * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
+ * Various improvement to the modular exponentiation code
+ * Rewrote the headers to generate the API docs with doxygen
+ * Fixed a bug in ssl_encrypt_buf (incorrect padding was
+ generated) and in ssl_parse_client_hello (max. client
+ version was not properly set), thanks to Didier Rebeix
+ * Fixed another bug in ssl_parse_client_hello: clients with
+ cipherlists larger than 96 bytes were incorrectly rejected
+ * Fixed a couple memory leak in x509_read.c
+
+= Version 0.3 released on 2007-01-01
+
+ * Added server-side SSLv3 and TLSv1.0 support
+ * Multiple fixes to enhance the compatibility with g++,
+ thanks to Xosé Antón Otero Ferreira
+ * Fixed a bug in the CBC code, thanks to dowst; also,
+ the bignum code is no longer dependent on long long
+ * Updated rsa_pkcs1_sign to handle arbitrary large inputs
+ * Updated timing.c for improved compatibility with i386
+ and 486 processors, thanks to Arnaud Cornet
+
+= Version 0.2 released on 2006-12-01
+
+ * Updated timing.c to support ARM and MIPS arch
+ * Updated the MPI code to support 8086 on MSVC 1.5
+ * Added the copyright notice at the top of havege.h
+ * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
+ * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
+ * Fixed a bug reported by Torsten Lauter in ssl_read_record
+ * Fixed a bug in rsa_check_privkey that would wrongly cause
+ valid RSA keys to be dismissed (thanks to oldwolf)
+ * Fixed a bug in mpi_is_prime that caused some primes to fail
+ the Miller-Rabin primality test
+
+ I'd also like to thank Younès Hafri for the CRUX linux port,
+ Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
+ who maintains the Debian package :-)
+
+= Version 0.1 released on 2006-11-01
+