--- 1/draft-ietf-curdle-ssh-ed25519-ed448-07.txt 2019-01-16 23:13:11.067382421 -0800 +++ 2/draft-ietf-curdle-ssh-ed25519-ed448-08.txt 2019-01-16 23:13:11.083382807 -0800 @@ -1,20 +1,20 @@ Internet Engineering Task Force B. Harris Internet-Draft Intended status: Standards Track L. Velvindron -Expires: April 18, 2019 cyberstorm.mu - October 15, 2018 +Expires: July 20, 2019 cyberstorm.mu + January 16, 2019 Ed25519 and Ed448 public key algorithms for the Secure Shell (SSH) protocol - draft-ietf-curdle-ssh-ed25519-ed448-07 + draft-ietf-curdle-ssh-ed25519-ed448-08 Abstract This document describes the use of the Ed25519 and Ed448 digital signature algorithm in the Secure Shell (SSH) protocol. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. @@ -22,25 +22,25 @@ Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." - This Internet-Draft will expire on April 18, 2019. + This Internet-Draft will expire on July 20, 2019. Copyright Notice - Copyright (c) 2018 IETF Trust and the persons identified as the + Copyright (c) 2019 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as @@ -62,33 +62,41 @@ [TO BE REMOVED: Please send comments on this draft to curdle@ietf.org.] 2. Conventions Used in This Document The descriptions of key and signature formats use the notation introduced in [RFC4251], Section 3 [RFC4251] and the string data type from [RFC4251], Section 5 [RFC4251]. +2.1. Requirements Language + + The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", + "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this + document are to be interpreted as described in RFC 2119 [RFC2119]. + 3. Public Key Algorithm This document describes a public key algorithm for use with SSH in accordance with [RFC4253], Section 6.6 [RFC4253]. The name of the algorithm is "ssh-ed25519". This algorithm only supports signing and not encryption. Additionally, this document describes another public key algorithm. The name of the algorithm is "ssh-ed448". This algorithm only supports signing and not encryption. -4. Public Key Format + Standard implementations of SSH SHOULD implement these signature + algorithms. +4. Public Key Format The "ssh-ed25519" key format has the following encoding: string "ssh-ed25519" string key Here 'key' is the 32-octet public key described by [RFC8032], Section 5.1.5 [RFC8032]. The "ssh-ed448" key format has the following encoding: @@ -195,20 +203,25 @@ 11. Acknowledgements The OpenSSH implementation of Ed25519 in SSH was written by Markus Friedl. We are also grateful to Mark Baushke and Daniel Migault for their comments. 12. References 12.1. Normative References + [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate + Requirement Levels", BCP 14, RFC 2119, + DOI 10.17487/RFC2119, March 1997, + . + [RFC4250] Lehtinen, S. and C. Lonvick, Ed., "The Secure Shell (SSH) Protocol Assigned Numbers", RFC 4250, DOI 10.17487/RFC4250, January 2006, . [RFC4251] Ylonen, T. and C. Lonvick, Ed., "The Secure Shell (SSH) Protocol Architecture", RFC 4251, DOI 10.17487/RFC4251, January 2006, . [RFC4253] Ylonen, T. and C. Lonvick, Ed., "The Secure Shell (SSH)