Signature Authentication in the Internet Key Exchange Version 2 (IKEv2) (RFC7427)
Original Publication Date: 2015-Jan-01
Included in the Prior Art Database: 2015-Jan-07
Internet Society Requests For Comment (RFCs)
T. Kivinen: AUTHOR [+2]
This document adds a new IKEv2 [RFC7296] authentication method to support signature methods in a more general way. The current signature-based authentication methods in IKEv2 are per algorithm, i.e., there is one for RSA digital signatures, one for DSS digital signatures (using SHA-1), and three for different ECDSA curves, each tied to exactly one hash algorithm. This design is cumbersome when more signature algorithms, hash algorithms, and elliptic curves need to be supported:
Internet Engineering Task Force (IETF) T. Kivinen Request for Comments: 7427 INSIDE Secure Updates: 7296 J. Snyder Category: Standards Track Opus One ISSN: 2070-1721 January 2015
Signature Authentication in the Internet Key Exchange Version 2 (IKEv2)
The Internet Key Exchange Version 2 (IKEv2) protocol has limited support for the Elliptic Curve Digital Signature Algorithm (ECDSA). The current version only includes support for three Elliptic Curve groups, and there is a fixed hash algorithm tied to each group. This document generalizes IKEv2 signature support to allow any signature method supported by PKIX and also adds signature hash algorithm negotiation. This is a generic mechanism and is not limited to ECDSA; it can also be used with other signature algorithms.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7427.
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Snyder Standards Track [Page 1]
RFC 7427 Signature Authentication in IKEv2 January 2015
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Authentication Payload . . . . . . . . . . . . . . . . . . . 4