RFC 8731: Secure Shell (SSH) Key Exchange Method Using Curve25519 and Curve448

This document describes the specification for using Curve25519 and Curve448 key exchange methods in the Secure Shell (SSH) protocol.

Read RFC 8731 on the RFC Editor

Outgoing relationships (8 related RFCs)

Normative reference — RFC 2119: Key words for use in RFCs to Indicate Requirement Levels
Normative reference — RFC 8174: Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words
Normative reference — RFC 4251: The Secure Shell (SSH) Protocol Architecture
Normative reference — RFC 4253: The Secure Shell (SSH) Transport Layer Protocol
Normative reference — RFC 4250: The Secure Shell (SSH) Protocol Assigned Numbers
Normative reference — RFC 5656: Elliptic Curve Algorithm Integration in the Secure Shell Transport Layer
Informative reference — RFC 6234: US Secure Hash Algorithms (SHA and SHA-based HMAC and HKDF)
Informative reference — RFC 7748: Elliptic Curves for Security

Incoming relationships (3 related RFCs)

Normatively referenced by — RFC 8732: Generic Security Service Application Program Interface (GSS-API) Key Exchange with SHA-2
Normatively referenced by — RFC 9142: Key Exchange (KEX) Method Updates and Recommendations for Secure Shell (SSH)
Normatively referenced by — RFC 9941: Secure Shell (SSH) Key Exchange Method Using Hybrid Streamlined NTRU Prime sntrup761 and X25519 with SHA-512: sntrup761x25519-sha512