RFC 9941 - Secure Shell (SSH) Key Exchange Method Using Hybrid Streamlined NTRU Prime sntrup761 and X25519 with SHA-512: sntrup761x25519-sha512
- Status: Informational
- Published: April 2026
- Stream: IETF
- Errata: No Errata
Abstract
This document describes a widely deployed hybrid key exchange method in the Secure Shell (SSH) protocol that is based on Streamlined NTRU Prime sntrup761 and X25519 with SHA-512.
Related Resources
- Official Text: RFC 9941
- Official Page: RFC 9941 DataTracker
- Errata: RFC Editor Errata