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README
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*** Notes, Please read ***
Note 1)
wolfSSL as of 3.6.6 no longer enables SSLv3 by default. wolfSSL also no
longer supports static key cipher suites with PSK, RSA, or ECDH. This means
if you plan to use TLS cipher suites you must enable DH (DH is on by default),
or enable ECC (ECC is on by default on 64bit systems), or you must enable static
key cipher suites with
WOLFSSL_STATIC_DH
WOLFSSL_STATIC_RSA
or
WOLFSSL_STATIC_PSK
though static key cipher suites are deprecated and will be removed from future
versions of TLS. They also lower your security by removing PFS. Since current
NTRU suites available do not use ephemeral keys, WOLFSSL_STATIC_RSA needs to be
used in order to build with NTRU suites.
When compiling ssl.c wolfSSL will now issue a compiler error if no cipher suites
are available. You can remove this error by defining WOLFSSL_ALLOW_NO_SUITES
in the event that you desire that, i.e., you're not using TLS cipher suites.
Note 2)
wolfSSL takes a different approach to certificate verification than OpenSSL
does. The default policy for the client is to verify the server, this means
that if you don't load CAs to verify the server you'll get a connect error,
no signer error to confirm failure (-188).
If you want to mimic OpenSSL behavior of having SSL_connect succeed even if
verifying the server fails and reducing security you can do this by calling:
wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, 0);
before calling wolfSSL_new(); Though it's not recommended.
*** end Notes ***
********* wolfSSL (Formerly CyaSSL) Release 3.10.2 (2/10/2017)
Release 3.10.2 of wolfSSL has bug fixes and new features including:
- Poly1305 Windows macros fix. Thanks to GitHub user Jay Satiro
- Compatibility layer expanded with multiple functions added
- Improve fp_copy performance with ALT_ECC_SIZE
- OCSP updates and improvements
- Fixes for IAR EWARM 8 compiler warnings
- Reduce stack usage with ECC_CACHE_CURVE disabled
- Added ECC export raw for public and private key
- Fix for NO_ASN_TIME build
- Supported curves extensions now populated by default
- Add DTLS build without big integer math
- Fix for static memory feature with wc_ecc_verify_hash_ex and not SHAMIR
- Added PSK interoperability testing to script bundled with wolfSSL
- Fix for Python wrapper random number generation. Compiler optimizations with Python could place the random number in same buffer location each time. Thanks to GitHub user Erik Bray (embray)
- Fix for tests on unaligned memory with static memory feature
- Add macro WOLFSSL_NO_OCSP_OPTIONAL_CERTS to skip optional OCSP certificates
- Sanity checks on NULL arguments added to wolfSSL_set_fd and wolfSSL_DTLS_SetCookieSecret
- mp_jacobi stack use reduced, thanks to Szabi Tolnai for providing a solution to reduce stack usage
This release of wolfSSL fixes 2 low and 1 medium level security vulnerability.
Low level fix of buffer overflow for when loading in a malformed temporary DH file. Thanks to Yueh-Hsun Lin and Peng Li from KNOX Security, Samsung Research America for the report.
Medium level fix for processing of OCSP response. If using OCSP without hard faults enforced and no alternate revocation checks like OCSP stapling then it is recommended to update.
Low level fix for potential cache attack on RSA operations. If using wolfSSL RSA on a server that other users can have access to monitor the cache, then it is recommended to update wolfSSL. Thanks to Andreas Zankl, Johann Heyszl and Georg Sigl at Fraunhofer AISEC for the initial report.
See INSTALL file for build instructions.
More info can be found on-line at http://wolfssl.com/wolfSSL/Docs.html
********* wolfSSL (Formerly CyaSSL) Release 3.10.0 (12/21/2016)
Release 3.10.0 of wolfSSL has bug fixes and new features including:
- Added support for SHA224
- Added scrypt feature
- Build for Intel SGX use, added in directory IDE/WIN-SGX
- Fix for ChaCha20-Poly1305 ECDSA certificate type request
- Enhance PKCS#7 with ECC enveloped data and AES key wrap support
- Added support for RIOT OS
- Add support for parsing PKCS#12 files
- ECC performance increased with custom curves
- ARMv8 expanded to AArch32 and performance increased
- Added ANSI-X9.63-KDF support
- Port to STM32 F2/F4 CubeMX
- Port to Atmel ATECC508A board
- Removed fPIE by default when wolfSSL library is compiled
- Update to Python wrapper, dropping DES and adding wc_RSASetRNG
- Added support for NXP K82 hardware acceleration
- Added SCR client and server verify check
- Added a disable rng option with autoconf
- Added more tests vectors to test.c with AES-CTR
- Updated DTLS session export version number
- Updated DTLS for 64 bit sequence numbers
- Fix for memory management with TI and WOLFSSL_SMALL_STACK
- Hardening RSA CRT to be constant time
- Fix uninitialized warning with IAR compiler
- Fix for C# wrapper example IO hang on unexpected connection termination
This release of wolfSSL fixes a low level security vulnerability. The vulnerability reported was a potential cache attack on RSA operations. If using wolfSSL RSA on a server that other users can have access to monitor the cache, then it is recommended to update wolfSSL. Thanks to Andreas Zankl, Johann Heyszl and Georg Sigl at Fraunhofer AISEC for the report. More information will be available on our site:
https://wolfssl.com/wolfSSL/security/vulnerabilities.php
See INSTALL file for build instructions.
More info can be found on-line at http://wolfssl.com/wolfSSL/Docs.html
********* wolfSSL (Formerly CyaSSL) Release 3.9.10 (9/23/2016)
Release 3.9.10 of wolfSSL has bug fixes and new features including:
- Default configure option changes:
1. DES3 disabled by default
2. ECC Supported Curves Extension enabled by default
3. New option Extended Master Secret enabled by default
- Added checking CA certificate path length, and new test certs
- Fix to DSA pre padding and sanity check on R/S values
- Added CTX level RNG for single-threaded builds
- Intel RDSEED enhancements
- ARMv8 hardware acceleration support for AES-CBC/CTR/GCM, SHA-256
- Arduino support updates
- Added the Extended Master Secret TLS extension
1. Enabled by default in configure options, API to disable
2. Added support for Extended Master Secret to sniffer
- OCSP fix with issuer key hash, lookup refactor
- Added support for Frosted OS
- Added support for DTLS over SCTP
- Added support for static memory with wolfCrypt
- Fix to ECC Custom Curve support
- Support for asynchronous wolfCrypt RSA and TLS client
- Added distribution build configure option
- Update the test certificates
This release of wolfSSL fixes medium level security vulnerabilities. Fixes for
potential AES, RSA, and ECC side channel leaks is included that a local user
monitoring the same CPU core cache could exploit. VM users, hyper-threading
users, and users where potential attackers have access to the CPU cache will
need to update if they utilize AES, RSA private keys, or ECC private keys.
Thanks to Gorka Irazoqui Apecechea and Xiaofei Guo from Intel Corporation for
the report. More information will be available on our site:
https://wolfssl.com/wolfSSL/security/vulnerabilities.php
See INSTALL file for build instructions.
More info can be found on-line at http://wolfssl.com/wolfSSL/Docs.html
********* wolfSSL (Formerly CyaSSL) Release 3.9.8 (7/29/2016)
Release 3.9.8 of wolfSSL has bug fixes and new features including:
- Add support for custom ECC curves.
- Add cipher suite ECDHE-ECDSA-AES128-CCM.
- Add compkey enable option. This option is for compressed ECC keys.
- Add in the option to use test.h without gettimeofday function using the macro
WOLFSSL_USER_CURRTIME.
- Add RSA blinding for private key operations. Enable option of harden which is
on by default. This negates timing attacks.
- Add ECC and TLS support for all SECP, Koblitz and Brainpool curves.
- Add helper functions for static memory option to allow getting optimum buffer
sizes.
- Update DTLS behavior on bad MAC. DTLS silently drops packets with bad MACs now.
- Update fp_isprime function from libtom enchancement/cleanup repository.
- Update sanity checks on inputs and return values for AES-CMAC.
- Update wolfSSL for use with MYSQL v5.6.30.
- Update LPCXpresso eclipse project to not include misc.c when not needed.
- Fix retransmit of last DTLS flight with timeout notification. The last flight
is no longer retransmitted on timeout.
- Fixes to some code in math sections for compressed ECC keys. This includes
edge cases for buffer size on allocation and adjustments for compressed curves
build. The code and full list can be found on github with pull request #456.
- Fix function argument mismatch for build with secure renegotiation.
- X.509 bug fixes for reading in malformed certificates, reported by researchers
at Columbia University
- Fix GCC version 6 warning about hard tabs in poly1305.c. This was a warning
produced by GCC 6 trying to determine the intent of code.
- Fixes for static memory option. Including avoid potential race conditions with
counters, decrement handshake counter correctly.
- Fix anonymous cipher with Diffie Hellman on the server side. Was an issue of a
possible buffer corruption. For information and code see pull request #481.
- One high level security fix that requires an update for use with static RSA
cipher suites was submitted. This fix was the addition of RSA blinding for
private RSA operations. We recommend servers who allow static RSA cipher
suites to also generate new private RSA keys. Static RSA cipher suites are
turned off by default.
See INSTALL file for build instructions.
More info can be found on-line at //http://wolfssl.com/wolfSSL/Docs.html
********* wolfSSL (Formerly CyaSSL) Release 3.9.6 (6/14/2016)
Release 3.9.6 of wolfSSL has bug fixes and new features including:
- Add staticmemory feature
- Add public wc_GetTime API with base64encode feature
- Add AES CMAC algorithm
- Add DTLS sessionexport feature
- Add python wolfCrypt wrapper
- Add ECC encrypt/decrypt benchmarks
- Add dynamic session tickets
- Add eccshamir option
- Add Whitewood netRandom support --with-wnr
- Add embOS port
- Add minimum key size checks for RSA and ECC
- Add STARTTLS support to examples
- Add uTasker port
- Add asynchronous crypto and wolf event support
- Add compile check for misc.c with inline
- Add RNG benchmark
- Add reduction to stack usage with hash-based RNG
- Update STM32F2_CRYPTO port with additional algorithms supported
- Update MDK5 projects
- Update AES-NI
- Fix for STM32 with STM32F2_HASH defined
- Fix for building with MinGw
- Fix ECC math bugs with ALT_ECC_SIZE and key sizes over 256 bit (1)
- Fix certificate buffers github issue #422
- Fix decrypt max size with RSA OAEP
- Fix DTLS sanity check with DTLS timeout notification
- Fix free of WOLFSSL_METHOD on failure to create CTX
- Fix memory leak in failure case with wc_RsaFunction (2)
- No high level security fixes that requires an update though we always
recommend updating to the latest
- (1) Code changes for ECC fix can be found at pull requests #411, #416, and #428
- (2) Builds using RSA with using normal math and not RSA_LOW_MEM should update
- Tag 3.9.6w is for a Windows example echoserver fix
See INSTALL file for build instructions.
More info can be found on-line at //http://wolfssl.com/wolfSSL/Docs.html
********* wolfSSL (Formerly CyaSSL) Release 3.9.0 (3/18/2016)
Release 3.9.0 of wolfSSL has bug fixes and new features including:
- Add new leantls configuration
- Add RSA OAEP padding at wolfCrypt level
- Add Arduino port and example client
- Add fixed point DH operation
- Add CUSTOM_RAND_GENRATE_SEED_OS and CUSTOM_RAND_GENERATE_BLOCK
- Add ECDHE-PSK cipher suites
- Add PSK ChaCha20-Poly1305 cipher suites
- Add option for fail on no peer cert except PSK suites
- Add port for Nordic nRF51
- Add additional ECC NIST test vectors for 256, 384 and 521
- Add more granular ECC, Ed25519/Curve25519 and AES configs
- Update to ChaCha20-Poly1305
- Update support for Freescale KSDK 1.3.0
- Update DER buffer handling code, refactoring and reducing memory
- Fix to AESNI 192 bit key expansion
- Fix to C# wrapper character encoding
- Fix sequence number issue with DTLS epoch 0 messages
- Fix RNGA with K64 build
- Fix ASN.1 X509 V3 certificate policy extension parsing
- Fix potential free of uninitialized RSA key in asn.c
- Fix potential underflow when using ECC build with FP_ECC
- Fixes for warnings in Visual Studio 2015 build
- No high level security fixes that requires an update though we always
recommend updating to the latest
- FP_ECC is off by default, users with it enabled should update for the zero
sized hash fix
See INSTALL file for build instructions.
More info can be found on-line at //http://wolfssl.com/yaSSL/Docs.html
********* wolfSSL (Formerly CyaSSL) Release 3.8.0 (12/30/2015)
Release 3.8.0 of wolfSSL has bug fixes and new features including:
- Example client/server with VxWorks
- AESNI use with AES-GCM
- Stunnel compatibility enhancements
- Single shot hash and signature/verify API added
- Update cavium nitrox port
- LPCXpresso IDE support added
- C# wrapper to support wolfSSL use by a C# program
- (BETA version)OCSP stapling added
- Update OpenSSH compatibility
- Improve DTLS handshake when retransmitting finished message
- fix idea_mult() for 16 and 32bit systems
- fix LowResTimer on Microchip ports
- No high level security fixes that requires an update though we always
recommend updating to the latest
See INSTALL file for build instructions.
More info can be found on-line at //http://wolfssl.com/yaSSL/Docs.html
********* wolfSSL (Formerly CyaSSL) Release 3.7.0 (10/26/2015)
Release 3.7.0 of wolfSSL has bug fixes and new features including:
- ALPN extension support added for HTTP2 connections with --enable-alpn
- Change of example/client/client max fragment flag -L -> -F
- Throughput benchmarking, added scripts/benchmark.test
- Sniffer API ssl_FreeDecodeBuffer added
- Addition of AES_GCM to Sniffer
- Sniffer change to handle unlimited decrypt buffer size
- New option for the sniffer where it will try to pick up decoding after a
sequence number acknowldgement fault. Also includes some additional stats.
- JNI API setter and getter function for jobject added
- User RSA crypto plugin abstraction. An example placed in wolfcrypt/user-crypto
- fix to asn configuration bug
- AES-GCM/CCM fixes.
- Port for Rowley added
- Rowley Crossworks bare metal examples added
- MDK5-ARM project update
- FreeRTOS support updates.
- VXWorks support updates.
- Added the IDEA cipher and support in wolfSSL.
- Update wolfSSL website CA.
- CFLAGS is usable when configuring source.
- No high level security fixes that requires an update though we always
recommend updating to the latest
See INSTALL file for build instructions.
More info can be found on-line at //http://wolfssl.com/yaSSL/Docs.html
********* wolfSSL (Formerly CyaSSL) Release 3.6.8 (09/17/2015)
Release 3.6.8 of wolfSSL fixes two high severity vulnerabilities. It also
includes bug fixes and new features including:
- Two High level security fixes, all users SHOULD update.
a) If using wolfSSL for DTLS on the server side of a publicly accessible
machine you MUST update.
b) If using wolfSSL for TLS on the server side with private RSA keys allowing
ephemeral key exchange without low memory optimizations you MUST update and
regenerate the private RSA keys.
Please see https://www.wolfssl.com/wolfSSL/Blog/Blog.html for more details
- No filesystem build fixes for various configurations
- Certificate generation now supports several extensions including KeyUsage,
SKID, AKID, and Certificate Policies
- CRLs can be loaded from buffers as well as files now
- SHA-512 Certificate Signing generation
- Fixes for sniffer reassembly processing
See INSTALL file for build instructions.
More info can be found on-line at //http://wolfssl.com/yaSSL/Docs.html
********* wolfSSL (Formerly CyaSSL) Release 3.6.6 (08/20/2015)
Release 3.6.6 of wolfSSL has bug fixes and new features including:
- OpenSSH compatibility with --enable-openssh
- stunnel compatibility with --enable-stunnel
- lighttpd compatibility with --enable-lighty
- SSLv3 is now disabled by default, can be enabled with --enable-sslv3
- Ephemeral key cipher suites only are now supported by default
To enable static ECDH cipher suites define WOLFSSL_STATIC_DH
To enable static RSA cipher suites define WOLFSSL_STATIC_RSA
To enable static PSK cipher suites define WOLFSSL_STATIC_PSK
- Added QSH (quantum-safe handshake) extension with --enable-ntru
- SRP is now part of wolfCrypt, enable with --enabe-srp
- Certificate handshake messages can now be sent fragmented if the record
size is smaller than the total message size, no user action required.
- DTLS duplicate message fixes
- Visual Studio project files now support DLL and static builds for 32/64bit.
- Support for new Freescale I/O
- FreeRTOS FIPS support
- No high level security fixes that requires an update though we always
recommend updating to the latest
See INSTALL file for build instructions.
More information can be found on-line at //http://wolfssl.com/yaSSL/Docs.html
**************** wolfSSL (Formerly CyaSSL) Release 3.6.0 (06/19/2015)
Release 3.6.0 of wolfSSL has bug fixes and new features including:
- Max Strength build that only allows TLSv1.2, AEAD ciphers, and PFS (Perfect
Forward Secrecy). With --enable-maxstrength
- Server side session ticket support, the example server and echoserver use the
example callback myTicketEncCb(), see wolfSSL_CTX_set_TicketEncCb()
- FIPS version submitted for iOS.
- TI Crypto Hardware Acceleration
- DTLS fragmentation fixes
- ECC key check validation with wc_ecc_check_key()
- 32bit code options to reduce memory for Curve25519 and Ed25519
- wolfSSL JNI build switch with --enable-jni
- PicoTCP support improvements
- DH min ephemeral key size enforcement with wolfSSL_CTX_SetMinDhKey_Sz()
- KEEP_PEER_CERT and AltNames can now be used together
- ChaCha20 big endian fix
- SHA-512 signature algorithm support for key exchange and verify messages
- ECC make key crash fix on RNG failure, ECC users must update.
- Improvements to usage of time code.
- Improvements to VS solution files.
- GNU Binutils 2.24 (and late 2.23) ld has problems with some debug builds,
to fix an ld error add C_EXTRA_FLAGS="-fdebug-types-section -g1".
- No high level security fixes that requires an update though we always
recommend updating to the latest (except note 14, ecc RNG failure)
See INSTALL file for build instructions.
More info can be found on-line at //http://wolfssl.com/yaSSL/Docs.html
*****************wolfSSL (Formerly CyaSSL) Release 3.4.6 (03/30/2015)
Release 3.4.6 of wolfSSL has bug fixes and new features including:
- Intel Assembly Speedups using instructions rdrand, rdseed, aesni, avx1/2,
rorx, mulx, adox, adcx . They can be enabled with --enable-intelasm.
These speedup the use of RNG, SHA2, and public key algorithms.
- Ed25519 support at the crypto level. Turn on with --enable-ed25519. Examples
in wolcrypt/test/test.c ed25519_test().
- Post Handshake Memory reductions. wolfSSL can now hold less than 1,000 bytes
of memory per secure connection including cipher state.
- wolfSSL API and wolfCrypt API fixes, you can still include the cyassl and
ctaocrypt headers which will enable the compatibility APIs for the
foreseeable future
- INSTALL file to help direct users to build instructions for their environment
- For ECC users with the normal math library a fix that prevents a crash when
verify signature fails. Users of 3.4.0 with ECC and the normal math library
must update
- RC4 is now disabled by default in autoconf mode
- AES-GCM and ChaCha20/Poly1305 are now enabled by default to make AEAD ciphers
available without a switch
- External ChaCha-Poly AEAD API, thanks to Andrew Burks for the contribution
- DHE-PSK cipher suites can now be built without ASN or Cert support
- Fix some NO MD5 build issues with optional features
- Freescale CodeWarrior project updates
- ECC curves can be individually turned on/off at build time.
- Sniffer handles Cert Status message and other minor fixes
- SetMinVersion() at the wolfSSL Context level instead of just SSL session level
to allow minimum protocol version allowed at runtime
- RNG failure resource cleanup fix
- No high level security fixes that requires an update though we always
recommend updating to the latest (except note 6 use case of ecc/normal math)
See INSTALL file for build instructions.
More info can be found on-line at //http://wolfssl.com/yaSSL/Docs.html
*****************wolfSSL (Formerly CyaSSL) Release 3.4.0 (02/23/2015)
Release 3.4.0 wolfSSL has bug fixes and new features including:
- wolfSSL API and wolfCrypt API, you can still include the cyassl and ctaocrypt
headers which will enable the compatibility APIs for the foreseeable future
- Example use of the wolfCrypt API can be found in wolfcrypt/test/test.c
- Example use of the wolfSSL API can be found in examples/client/client.c
- Curve25519 now supported at the wolfCrypt level, wolfSSL layer coming soon
- Improvements in the build configuration under AIX
- Microchip Pic32 MZ updates
- TIRTOS updates
- PowerPC updates
- Xcode project update
- Bidirectional shutdown examples in client/server with -w (wait for full
shutdown) option
- Cycle counts on benchmarks for x86_64, more coming soon
- ALT_ECC_SIZE for reducing ecc heap use with fastmath when also using large RSA
keys
- Various compile warnings
- Scan-build warning fixes
- Changed a memcpy to memmove in the sniffer (if using sniffer please update)
- No high level security fixes that requires an update though we always
recommend updating to the latest
***********CyaSSL Release 3.3.0 (12/05/2014)
- Countermeasuers for Handshake message duplicates, CHANGE CIPHER without
FINISHED, and fast forward attempts. Thanks to Karthikeyan Bhargavan from
the Prosecco team at INRIA Paris-Rocquencourt for the report.
- FIPS version submitted
- Removes SSLv2 Client Hello processing, can be enabled with OLD_HELLO_ALLOWED
- User can set minimum downgrade version with CyaSSL_SetMinVersion()
- Small stack improvements at TLS/SSL layer
- TLS Master Secret generation and Key Expansion are now exposed
- Adds client side Secure Renegotiation, * not recommended *
- Client side session ticket support, not fully tested with Secure Renegotiation
- Allows up to 4096bit DHE at TLS Key Exchange layer
- Handles non standard SessionID sizes in Hello Messages
- PicoTCP Support
- Sniffer now supports SNI Virtual Hosts
- Sniffer now handles non HTTPS protocols using STARTTLS
- Sniffer can now parse records with multiple messages
- TI-RTOS updates
- Fix for ColdFire optimized fp_digit read only in explicit 32bit case
- ADH Cipher Suite ADH-AES128-SHA for EAP-FAST
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
***********CyaSSL Release 3.2.0 (09/10/2014)
Release 3.2.0 CyaSSL has bug fixes and new features including:
- ChaCha20 and Poly1305 crypto and suites
- Small stack improvements for OCSP, CRL, TLS, DTLS
- NTRU Encrypt and Decrypt benchmarks
- Updated Visual Studio project files
- Updated Keil MDK5 project files
- Fix for DTLS sequence numbers with GCM/CCM
- Updated HashDRBG with more secure struct declaration
- TI-RTOS support and example Code Composer Studio project files
- Ability to get enabled cipher suites, CyaSSL_get_ciphers()
- AES-GCM/CCM/Direct support for Freescale mmCAU and CAU
- Sniffer improvement checking for decrypt key setup
- Support for raw ECC key import
- Ability to convert ecc_key to DER, EccKeyToDer()
- Security fix for RSA Padding check vulnerability reported by Intel Security
Advanced Threat Research team
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
************ CyaSSL Release 3.1.0 (07/14/2014)
Release 3.1.0 CyaSSL has bug fixes and new features including:
- Fix for older versions of icc without 128-bit type
- Intel ASM syntax for AES-NI
- Updated NTRU support, keygen benchmark
- FIPS check for minimum required HMAC key length
- Small stack (--enable-smallstack) improvements for PKCS#7, ASN
- TLS extension support for DTLS
- Default I/O callbacks external to user
- Updated example client with bad clock test
- Ability to set optional ECC context info
- Ability to enable/disable DH separate from opensslextra
- Additional test key/cert buffers for CA and server
- Updated example certificates
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
************ CyaSSL Release 3.0.2 (05/30/2014)
Release 3.0.2 CyaSSL has bug fixes and new features including:
- Added the following cipher suites:
* TLS_PSK_WITH_AES_128_GCM_SHA256
* TLS_PSK_WITH_AES_256_GCM_SHA384
* TLS_PSK_WITH_AES_256_CBC_SHA384
* TLS_PSK_WITH_NULL_SHA384
* TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
* TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
* TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
* TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
* TLS_DHE_PSK_WITH_NULL_SHA256
* TLS_DHE_PSK_WITH_NULL_SHA384
* TLS_DHE_PSK_WITH_AES_128_CCM
* TLS_DHE_PSK_WITH_AES_256_CCM
- Added AES-NI support for Microsoft Visual Studio builds.
- Changed small stack build to be disabled by default.
- Updated the Hash DRBG and provided a configure option to enable.
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
************ CyaSSL Release 3.0.0 (04/29/2014)
Release 3.0.0 CyaSSL has bug fixes and new features including:
- FIPS release candidate
- X.509 improvements that address items reported by Suman Jana with security
researchers at UT Austin and UC Davis
- Small stack size improvements, --enable-smallstack. Offloads large local
variables to the heap. (Note this is not complete.)
- Updated AES-CCM-8 cipher suites to use approved suite numbers.
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
************ CyaSSL Release 2.9.4 (04/09/2014)
Release 2.9.4 CyaSSL has bug fixes and new features including:
- Security fixes that address items reported by Ivan Fratric of the Google
Security Team
- X.509 Unknown critical extensions treated as errors, report by Suman Jana with
security researchers at UT Austin and UC Davis
- Sniffer fixes for corrupted packet length and Jumbo frames
- ARM thumb mode assembly fixes
- Xcode 5.1 support including new clang
- PIC32 MZ hardware support
- CyaSSL Object has enough room to read the Record Header now w/o allocs
- FIPS wrappers for AES, 3DES, SHA1, SHA256, SHA384, HMAC, and RSA.
- A sample I/O pool is demonstrated with --enable-iopool to overtake memory
handling and reduce memory fragmentation on I/O large sizes
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
************ CyaSSL Release 2.9.0 (02/07/2014)
Release 2.9.0 CyaSSL has bug fixes and new features including:
- Freescale Kinetis RNGB support
- Freescale Kinetis mmCAU support
- TLS Hello extensions
- ECC
- Secure Renegotiation (null)
- Truncated HMAC
- SCEP support
- PKCS #7 Enveloped data and signed data
- PKCS #10 Certificate Signing Request generation
- DTLS sliding window
- OCSP Improvements
- API change to integrate into Certificate Manager
- IPv4/IPv6 agnostic
- example client/server support for OCSP
- OCSP nonces are optional
- GMAC hashing
- Windows build additions
- Windows CYGWIN build fixes
- Updated test certificates
- Microchip MPLAB Harmony support
- Update autoconf scripts
- Additional X.509 inspection functions
- ECC encrypt/decrypt primitives
- ECC Certificate generation
The Freescale Kinetis K53 RNGB documentation can be found in Chapter 33 of the
K53 Sub-Family Reference Manual:
http://cache.freescale.com/files/32bit/doc/ref_manual/K53P144M100SF2RM.pdf
Freescale Kinetis K60 mmCAU (AES, DES, 3DES, MD5, SHA, SHA256) documentation
can be found in the "ColdFire/ColdFire+ CAU and Kinetis mmCAU Software Library
User Guide":
http://cache.freescale.com/files/32bit/doc/user_guide/CAUAPIUG.pdf
*****************CyaSSL Release 2.8.0 (8/30/2013)
Release 2.8.0 CyaSSL has bug fixes and new features including:
- AES-GCM and AES-CCM use AES-NI
- NetX default IO callback handlers
- IPv6 fixes for DTLS Hello Cookies
- The ability to unload Certs/Keys after the handshake, CyaSSL_UnloadCertsKeys()
- SEP certificate extensions
- Callback getters for easier resource freeing
- External CYASSL_MAX_ERROR_SZ for correct error buffer sizing
- MacEncrypt and DecryptVerify Callbacks for User Atomic Record Layer Processing
- Public Key Callbacks for ECC and RSA
- Client now sends blank cert upon request if doesn't have one with TLS <= 1.2
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
*****************CyaSSL Release 2.7.0 (6/17/2013)
Release 2.7.0 CyaSSL has bug fixes and new features including:
- SNI support for client and server
- KEIL MDK-ARM projects
- Wildcard check to domain name match, and Subject altnames are checked too
- Better error messages for certificate verification errors
- Ability to discard session during handshake verify
- More consistent error returns across all APIs
- Ability to unload CAs at the CTX or CertManager level
- Authority subject id support for Certificate matching
- Persistent session cache functionality
- Persistent CA cache functionality
- Client session table lookups to push serverID table to library level
- Camellia support to sniffer
- User controllable settings for DTLS timeout values
- Sniffer fixes for caching long lived sessions
- DTLS reliability enhancements for the handshake
- Better ThreadX support
When compiling with Mingw, libtool may give the following warning due to
path conversion errors:
libtool: link: Could not determine host file name corresponding to **
libtool: link: Continuing, but uninstalled executables may not work.
If so, examples and testsuite will have problems when run, showing an
error while loading shared libraries. To resolve, please run "make install".
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
************** CyaSSL Release 2.6.0 (04/15/2013)
Release 2.6.0 CyaSSL has bug fixes and new features including:
- DTLS 1.2 support including AEAD ciphers
- SHA-3 finalist Blake2 support, it's fast and uses little resources
- SHA-384 cipher suites including ECC ones
- HMAC now supports SHA-512
- Track memory use for example client/server with -t option
- Better IPv6 examples with --enable-ipv6, before if ipv6 examples/tests were
turned on, localhost only was used. Now link-local (with scope ids) and ipv6
hosts can be used as well.
- Xcode v4.6 project for iOS v6.1 update
- settings.h is now checked in all *.c files for true one file setting detection
- Better alignment at SSL layer for hardware crypto alignment needs
* Note, SSL itself isn't friendly to alignment with 5 byte TLS headers and
13 bytes DTLS headers, but every effort is now made to align with the
CYASSL_GENERAL_ALIGNMENT flag which sets desired alignment requirement
- NO_64BIT flag to turn off 64bit data type accumulators in public key code
* Note, some systems are faster with 32bit accumulators
- --enable-stacksize for example client/server stack use
* Note, modern desktop Operating Systems may add bytes to each stack frame
- Updated compression/decompression with direct crypto access
- All ./configure options are now lowercase only for consistency
- ./configure builds default to fastmath option
* Note, if on ia32 and building in shared mode this may produce a problem
with a missing register being available because of PIC, there are at least
6 solutions to this:
1) --disable-fastmath , don't use fastmath
2) --disable-shared, don't build a shared library
3) C_EXTRA_FLAGS=-DTFM_NO_ASM , turn off assembly use
4) use clang, it just seems to work
5) play around with no PIC options to force all registers being open,
e.g, --without-pic
6) if static lib is still a problem try removing fPIE
- Many new ./configure switches for option enable/disable for example
* rsa
* dh
* dsa
* md5
* sha
* arc4
* null (allow NULL ciphers)
* oldtls (only use TLS 1.2)
* asn (no certs or public keys allowed)
- ./configure generates cyassl/options.h which allows a header the user can
include in their app to make sure the same options are set at the app and
CyaSSL level.
- autoconf no longer needs serial-tests which lowers version requirements of
automake to 1.11 and autoconf to 2.63
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
************** CyaSSL Release 2.5.0 (02/04/2013)
Release 2.5.0 CyaSSL has bug fixes and new features including:
- Fix for TLS CBC padding timing attack identified by Nadhem Alfardan and
Kenny Paterson: http://www.isg.rhul.ac.uk/tls/
- Microchip PIC32 (MIPS16, MIPS32) support
- Microchip MPLAB X example projects for PIC32 Ethernet Starter Kit
- Updated CTaoCrypt benchmark app for embedded systems
- 1024-bit test certs/keys and cert/key buffers
- AES-CCM-8 crypto and cipher suites
- Camellia crypto and cipher suites
- Bumped minimum autoconf version to 2.65, automake version to 1.12
- Addition of OCSP callbacks
- STM32F2 support with hardware crypto and RNG
- Cavium NITROX support
CTaoCrypt now has support for the Microchip PIC32 and has been tested with
the Microchip PIC32 Ethernet Starter Kit, the XC32 compiler and
MPLAB X IDE in both MIPS16 and MIPS32 instruction set modes. See the README
located under the <cyassl_root>/mplabx directory for more details.
To add Cavium NITROX support do:
./configure --with-cavium=/home/user/cavium/software
pointing to your licensed cavium/software directory. Since Cavium doesn't
build a library we pull in the cavium_common.o file which gives a libtool
warning about the portability of this. Also, if you're using the github source
tree you'll need to remove the -Wredundant-decls warning from the generated
Makefile because the cavium headers don't conform to this warning. Currently
CyaSSL supports Cavium RNG, AES, 3DES, RC4, HMAC, and RSA directly at the crypto
layer. Support at the SSL level is partial and currently just does AES, 3DES,
and RC4. RSA and HMAC are slower until the Cavium calls can be utilized in non
blocking mode. The example client turns on cavium support as does the crypto
test and benchmark. Please see the HAVE_CAVIUM define.
CyaSSL is able to use the STM32F2 hardware-based cryptography and random number
generator through the STM32F2 Standard Peripheral Library. For necessary
defines, see the CYASSL_STM32F2 define in settings.h. Documentation for the
STM32F2 Standard Peripheral Library can be found in the following document:
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/USER_MANUAL/DM00023896.pdf
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
*************** CyaSSL Release 2.4.6 (12/20/2012)
Release 2.4.6 CyaSSL has bug fixes and a few new features including:
- ECC into main version
- Lean PSK build (reduced code size, RAM usage, and stack usage)
- FreeBSD CRL monitor support
- CyaSSL_peek()
- CyaSSL_send() and CyaSSL_recv() for I/O flag setting
- CodeWarrior Support
- MQX Support
- Freescale Kinetis support including Hardware RNG
- autoconf builds use jobserver
- cyassl-config
- Sniffer memory reductions
Thanks to Brian Aker for the improved autoconf system, make rpm, cyassl-config,
warning system, and general good ideas for improving CyaSSL!
The Freescale Kinetis K70 RNGA documentation can be found in Chapter 37 of the
K70 Sub-Family Reference Manual:
http://cache.freescale.com/files/microcontrollers/doc/ref_manual/K70P256M150SF3RM.pdf
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
*************** CyaSSL Release 2.4.0 (10/10/2012)
Release 2.4.0 CyaSSL has bug fixes and a few new features including:
- DTLS reliability
- Reduced memory usage after handshake
- Updated build process
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
*************** CyaSSL Release 2.3.0 (8/10/2012)
Release 2.3.0 CyaSSL has bug fixes and a few new features including:
- AES-GCM crypto and cipher suites
- make test cipher suite checks
- Subject AltName processing
- Command line support for client/server examples
- Sniffer SessionTicket support
- SHA-384 cipher suites
- Verify cipher suite validity when user overrides
- CRL dir monitoring
- DTLS Cookie support, reliability coming soon
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
***************CyaSSL Release 2.2.0 (5/18/2012)
Release 2.2.0 CyaSSL has bug fixes and a few new features including:
- Initial CRL support (--enable-crl)
- Initial OCSP support (--enable-ocsp)
- Add static ECDH suites
- SHA-384 support
- ECC client certificate support
- Add medium session cache size (1055 sessions)
- Updated unit tests
- Protection against mutex reinitialization
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
***************CyaSSL Release 2.0.8 (2/24/2012)
Release 2.0.8 CyaSSL has bug fixes and a few new features including:
- A fix for malicious certificates pointed out by Remi Gacogne (thanks)
resulting in NULL pointer use.
- Respond to renegotiation attempt with no_renegoatation alert
- Add basic path support for load_verify_locations()
- Add set Temp EC-DHE key size
- Extra checks on rsa test when porting into
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
************* CyaSSL Release 2.0.6 (1/27/2012)
Release 2.0.6 CyaSSL has bug fixes and a few new features including:
- Fixes for CA basis constraint check
- CTX reference counting
- Initial unit test additions
- Lean and Mean Windows fix
- ECC benchmarking
- SSMTP build support
- Ability to group handshake messages with set_group_messages(ctx/ssl)
- CA cache addition callback
- Export Base64_Encode for general use
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
************* CyaSSL Release 2.0.2 (12/05/2011)
Release 2.0.2 CyaSSL has bug fixes and a few new features including:
- CTaoCrypt Runtime library detection settings when directly using the crypto
library
- Default certificate generation now uses SHAwRSA and adds SHA256wRSA generation
- All test certificates now use 2048bit and SHA-1 for better modern browser
support
- Direct AES block access and AES-CTR (counter) mode
- Microchip pic32 support
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
************* CyaSSL Release 2.0.0rc3 (9/28/2011)
Release 2.0.0rc3 for CyaSSL has bug fixes and a few new features including:
- updated autoconf support
- better make install and uninstall (uses system directories)
- make test / make check
- CyaSSL headers now in <cyassl/*.h>
- CTaocrypt headers now in <cyassl/ctaocrypt/*.h>
- OpenSSL compatibility headers now in <cyassl/openssl/*.h>
- examples and tests all run from home directory so can use certs in ./certs
(see note 1)
So previous applications that used the OpenSSL compatibility header
<openssl/ssl.h> now need to include <cyassl/openssl/ssl.h> instead, no other
changes are required.
Special Thanks to Brian Aker for his autoconf, install, and header patches.
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
************CyaSSL Release 2.0.0rc2 (6/6/2011)
Release 2.0.0rc2 for CyaSSL has bug fixes and a few new features including:
- bug fixes (Alerts, DTLS with DHE)
- FreeRTOS support
- lwIP support
- Wshadow warnings removed
- asn public header
- CTaoCrypt public headers now all have ctc_ prefix (the manual is still being
updated to reflect this change)
- and more.
This is the 2nd and perhaps final release candidate for version 2.
Please send any comments or questions to [email protected].
The CyaSSL manual is available at:
http://www.wolfssl.com/documentation/CyaSSL-Manual.pdf. For build instructions
and comments about the new features please check the manual.
***********CyaSSL Release 2.0.0rc1 (5/2/2011)
Release 2.0.0rc1 for CyaSSL has many new features including:
- bug fixes
- SHA-256 cipher suites
- Root Certificate Verification (instead of needing all certs in the chain)
- PKCS #8 private key encryption (supports PKCS #5 v1-v2 and PKCS #12)
- Serial number retrieval for x509
- PBKDF2 and PKCS #12 PBKDF
- UID parsing for x509
- SHA-256 certificate signatures
- Client and server can send chains (SSL_CTX_use_certificate_chain_file)
- CA loading can now parse multiple certificates per file
- Dynamic memory runtime hooks
- Runtime hooks for logging
- EDH on server side
- More informative error codes
- More informative logging messages
- Version downgrade more robust (use SSL_v23*)
- Shared build only by default through ./configure
- Compiler visibility is now used, internal functions not polluting namespace
- Single Makefile, no recursion, for faster and simpler building
- Turn on all warnings possible build option, warning fixes
- and more.
Because of all the new features and the multiple OS, compiler, feature-set