Hi Joseph, To the best of my understanding, the only SSH iplementation supporting ssh-ed448 is AsyncSSH. OpenSSL has support for x448/ed448/curve448 LibreSSL does not yet have this support see https://github.com/libressl-portable/portable/issues/552 I would hope that offering to do the X448 implementation for LibreSSL and patches to OpenSSH to enable either OpenSSL or LibreSSL for X448 would be well received. I am not an OpenSSH developer, so I cannot reasssure you that OpenSSH will ever embrace X448. For what it is worth, FIPS 186-5 includes both Edwards25519 and Edwards448 as approved new elliptic curves. They have also approved a deterministic ECDSA. NIST seems to be plugging away at Post-Quantum Cryptography (PQC) https://csrc.nist.gov/projects/post-quantum-cryptography I suspect they have a long way to go yet before they standardize on anything. Be safe, stay healthy, -- Mark _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
