wolfSSL (Formerly CyaSSL) Release 3.12.0 (8/04/2017)

Release 3.12.0 of wolfSSL has bug fixes and new features including:

• TLS 1.3 with Nginx! TLS 1.3 with ARMv8! TLS 1.3 with Async Crypto! (--enable-tls13)
• TLS 1.3 0RTT feature added
• Added port for using Intel SGX with Linux
• Update and fix PIC32MZ port
• Additional unit testing for MD5, SHA, SHA224, SHA256, SHA384, SHA512, RipeMd, HMAC, 3DES, IDEA, ChaCha20, ChaCha20Poly1305 AEAD, Camellia, Rabbit, ARC4, AES, RSA, Hc128
• AVX and AVX2 assembly for improved ChaCha20 performance
• Intel QAT fixes for when using --disable-fastmath
• Update how DTLS handles decryption and MAC failures
• Update DTLS session export version number for --enable-sessionexport feature
• Add additional input argument sanity checks to ARMv8 assembly port
• Fix for making PKCS12 dynamic types match
• Fixes for potential memory leaks when using --enable-fast-rsa
• Fix for when using custom ECC curves and add BRAINPOOLP256R1 test
• Update TI-RTOS port for dependency on new wolfSSL source files
• DTLS multicast feature added, --enable-mcast
• Fix for Async crypto with GCC 7.1 and HMAC when not using Intel QuickAssist
• Improvements and enhancements to Intel QuickAssist support
• Added Xilinx port
• Added SHA3 Keccak feature, --enable-sha3
• Expand wolfSSL Python wrapper to now include a client side implementation
• Adjust example servers to not treat a peer closed error as a hard error
• Added more sanity checks to fp_read_unsigned_bin function
• Add SHA224 and AES key wrap to ARMv8 port
• Update MQX classics and mmCAU ports
• Fix for potential buffer over read with wolfSSL_CertPemToDer
• Add PKCS7/CMS decode support for KARI with IssuerAndSerialNumber
• Fix ThreadX/NetX warning
• Fixes for OCSP and CRL non blocking sockets and for incomplete cert chain with OCSP
• Added RSA PSS sign and verify
• Fix for STM32F4 AES-GCM
• Added enable all feature (--enable-all)
• Added trackmemory feature (--enable-trackmemory)
• Fixes for AES key wrap and PKCS7 on Windows VS
• Added benchmark block size argument
• Support use of staticmemory with PKCS7
• Fix for Blake2b build with GCC 5.4
• Fixes for compiling wolfSSL with GCC version 7, most dealing with switch statement fall through warnings.
• Added warning when compiling without hardened math operations

Note:
There is a known issue with using ChaCha20 AVX assembly on versions of GCC earlier than 5.2. This is encountered with using the wolfSSL enable options --enable-intelasm and --enable-chacha. To avoid this issue ChaCha20 can be enabled with --enable-chacha=noasm.
If using --enable-intelasm and also using --enable-sha224 or --enable-sha256 there is a known issue with trying to use -fsanitize=address.

This release of wolfSSL fixes 1 low level security vulnerability.

Low level fix for a potential DoS attack on a wolfSSL client. Previously a client would accept many warning alert messages without a limit. This fix puts a limit to the number of warning alert messages received and if this limit is reached a fatal error ALERT_COUNT_E is returned. The max number of warning alerts by default is set to 5 and can be adjusted with the macro WOLFSSL_ALERT_COUNT_MAX. Thanks for the report from Tarun Yadav and Koustav Sadhukhan from Defence Research and Development Organization, INDIA.

See INSTALL file for build instructions.
More info can be found on-line at http://wolfssl.com/wolfSSL/Docs.html