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OpenSSL 4.1 Promises Support for DTLS 1.3, IKEV2 KDF, and GREASE, Alpha Out Now
OpenSSL 4.1 promises support for the DTLS (Datagram Transport Layer Security) 1.3 protocol, support for the GREASE (Generate Random Extensions And Sustain Extensibility) mechanism to prevent extensibility failures in the TLS ecosystem, support for the IKEV2 KDF cryptographic mechanism, and initial support for the Elbrus2000 (e2k) architecture.
OpenSSL 4.1 also promises optimized ML-DSA and ML-KEM NTT operations on the PowerPC 64-bit Little Endian (ppc64le) architecture, optimized ML-DSA operations on the 64-bit/amd64 (x86_64) and IBM System z (s390x) architectures, as well as AVX-512-optimized SHAKE x4 operations for ML-DSA and AVX-512 and VAES optimizations for AES-CBC decryption on the x86_64 architecture.