OpenSSL 4.1.0

OpenSSL 4.1.0 Choose a tag to compare Sorry, something went wrong. Sorry, something went wrong. Uh oh! There was an error while loading. Please reload this page. No results found OpenSSL 4.1.0 is a feature release adding significant new functionality to OpenSSL. This release incorporates the following potentially significant or incompatible changes: Added VC-WIN32-MSVC2013 and VC-WIN64A-MSVC2013 build targets to provide internal functions for bridging the gaps in C99 standard support that are present in MSVC 2013. Added VC-WIN32-MSVC2013 and VC-WIN64A-MSVC2013 build targets to provide internal functions for bridging the gaps in C99 standard support that are present in MSVC 2013. Added optimized ML-DSA and ML-KEM NTT operations on ppc64le; optimized ML-DSA operations on x86_64; AVX-512-optimized SHAKE x4 operations for ML-DSA on x86_64; AVX-512 and VAES optimizations for AES-CBC decryption on x86_64. Added optimized ML-DSA and ML-KEM NTT operations on ppc64le; optimized ML-DSA operations on x86_64; AVX-512-optimized SHAKE x4 operations for ML-DSA on x86_64; AVX-512 and VAES optimizations for AES-CBC decryption on x86_64. Changed tsget utility to use Net::Curl::Easy (from the Net-Curl CPAN distribution) instead of the abandoned WWW::Curl::Easy. Users who rely on tsget should install Net::Curl::Easy before upgrading. Changed tsget utility to use Net::Curl::Easy (from the Net-Curl CPAN distribution) instead of the abandoned WWW::Curl::Easy. Users who rely on tsget should install Net::Curl::Easy before upgrading. Dropped Windows-on-Itanium (VC-WIN64I) and Windows CE (VC-CE) targets from Configurations. Dropped Windows-on-Itanium (VC-WIN64I) and Windows CE (VC-CE) targets from Configurations. Dropped no-ecdsa and no-ecdh options from Configure, as these options did not really disable the implementations. Use no-ec to disable the elliptic curve support. Dropped no-ecdsa and no-ecdh options from Configure, as these options did not really disable the implementations. Use no-ec to disable the elliptic curve support. This release adds the following new features: Support for DTLS 1.3 (RFC 9147). Refer to the ossl-guide-dtlsv13(7) manual page for details. Support for DTLS 1.3 (RFC 9147). Refer to the ossl-guide-dtlsv13(7) manual page for details. Support for RFC 8701 GREASE (Generate Random Extensions And Sustain Extensibility). Support for RFC 8701 GREASE (Generate Random Extensions And Sustain Extensibility). DTLS support in the SSL listener API. DTLS support in the SSL listener API. Support for IKEV2 KDF. Support for IKEV2 KDF. Initial support for the Elbrus2000 (e2k) architecture. Initial support for the Elbrus2000 (e2k) architecture. Known issues in 4.1.0: #32878 When a DTLS 1.3 KeyUpdate is received, all other outstanding post-handshake records are dropped from the retransmission buffer. This means post-handshake records still awaiting an ACK (such as a NewSessionTicket) will no longer be retransmitted if the original transmission is lost. A fix is in progress and planned for a future release. #32878 When a DTLS 1.3 KeyUpdate is received, all other outstanding post-handshake records are dropped from the retransmission buffer. This means post-handshake records still awaiting an ACK (such as a NewSessionTicket) will no longer be retransmitted if the original transmission is lost. A fix is in progress and planned for a future release. #33277 A permanent receive failure on a DTLS listener can be reported as SSL_ERROR_WANT_READ on an accepted connection. Polling and subsequent accept calls may also fail to report the error, causing applications to continue waiting after a permanent failure. #33277 A permanent receive failure on a DTLS listener can be reported as SSL_ERROR_WANT_READ on an accepted connection. Polling and subsequent accept calls may also fail to report the error, causing applications to continue waiting after a permanent failure. #33278 A retryable write failure on a nonblocking connection accepted from a DTLS listener can be reported as SSL_ERROR_SYSCALL instead of SSL_ERROR_WANT_WRITE. Applications treating this result as fatal may close a connection that is still usable. #33278 A retryable write failure on a nonblocking connection accepted from a DTLS listener can be reported as SSL_ERROR_SYSCALL instead of SSL_ERROR_WANT_WRITE. Applications treating this result as fatal may close a connection that is still usable. #33242 DTLS 1.3 servers may abort handshakes with an unexpected_message alert when a client acknowledges part or all of the server's first flight before sending its response. This can occur after packet loss or while the client is preparing its authentication response. #33242 DTLS 1.3 servers may abort handshakes with an unexpected_message alert when a client acknowledges part or all of the server's first flight before sending its response. This can occur after packet loss or while the client is preparing its authentication response. Uh oh! There was an error while loading. Please reload this page. 🎉 9 reactions ❤️ 2 reactions