arXiv:2312.08396cs.NI
Towards SSH3: how HTTP/3 improves secure shells
Early discovery. Linked by one identifiable commenter. This paper is outside the main ranking; a mention is not an endorsement.
Abstract
The SSH protocol was designed in the late nineties to cope with the security problems of the telnetf family of protocols. It brought authentication and confidentiality to remote access protocols and is now widely used. Almost 30 years after the initial design, we revisit SSH in the light of recent protocols including QUIC, TLS 1.3 and HTTP/3. We propose, implement and evaluate SSH3, a protocol that provides an enhanced feature set without compromise compared to SSHv2. SSH3 leverages HTTP-based authorization mechanisms to enable new authentication methods in addition to the classical password-based and private/public key pair authentications. SSH3 users can now configure their remote server to be accessed through the identity provider of their organization or using their Google or Github account. Relying on HTTP/3 and the QUIC protocol, SSH3 offers UDP port forwarding in addition to regular TCP forwarding as well as a faster and secure session establishment. We implement SSH3 over quic-go and evaluate its performance.
People are being perhaps a little too over dramatic here. Yes, this is not SSHv3 as defined by a standards body. It is very much SSHv2 over HTTP/3. (Which sorta sounds like how HTTP/3 is actually HTTP/2 over QUIC) But there is lots of SSH servers and clients, such as Dropbear…
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