Currently only RSA and ECDSA schems are accepted. EDDSA keys such as ED25519 or ED448 shall also be accepted.
RFC 8446, Section 1:
- Authentication: The server side of the channel is always
authenticated; the client side is optionally authenticated.
Authentication can happen via asymmetric cryptography (e.g., RSA
[RSA], the Elliptic Curve Digital Signature Algorithm (ECDSA)
[ECDSA], or the Edwards-Curve Digital Signature Algorithm (EdDSA)
[RFC8032]) or a symmetric pre-shared key (PSK).
Currently only RSA and ECDSA schems are accepted. EDDSA keys such as ED25519 or ED448 shall also be accepted.
RFC 8446, Section 1: