BGPsec Algorithms, Key Formats, and Signature Formats
RFC 8208

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Internet Engineering Task Force (IETF)                         S. Turner
Request for Comments: 8208                                         sn3rd
Updates: 7935                                                O. Borchert
Category: Standards Track                                           NIST
ISSN: 2070-1721                                           September 2017

         BGPsec Algorithms, Key Formats, and Signature Formats

Abstract

   This document specifies the algorithms, algorithm parameters,
   asymmetric key formats, asymmetric key sizes, and signature formats
   used in BGPsec (Border Gateway Protocol Security).  This document
   updates RFC 7935 ("The Profile for Algorithms and Key Sizes for Use
   in the Resource Public Key Infrastructure").

   This document also includes example BGPsec UPDATE messages as well as
   the private keys used to generate the messages and the certificates
   necessary to validate those signatures.

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 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   https://www.rfc-editor.org/info/rfc8208.

Turner & Borchert            Standards Track                    [Page 1]
RFC 8208          BGPsec Algs, Key & Signature Formats    September 2017

Copyright Notice

   Copyright (c) 2017 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
   described in the Simplified BSD License.

Table of Contents

   1. Introduction ....................................................3
      1.1. Terminology ................................................3
   2. Algorithms ......................................................4
   3. Asymmetric Key Pair Formats .....................................4
      3.1. Public Key Format ..........................................5
      3.2. Private Key Format .........................................5
   4. Signature Formats ...............................................5
   5. Additional Requirements .........................................5
   6. Security Considerations .........................................5
   7. IANA Considerations .............................................6
   8. References ......................................................7
      8.1. Normative References .......................................7
      8.2. Informative References .....................................8
   Appendix A. Examples ...............................................9
     A.1. Topology and Experiment Description .........................9
     A.2. Keys ........................................................9
     A.3. BGPsec IPv4 ................................................13
     A.4. BGPsec IPv6 ................................................16
   Acknowledgements ..................................................19
   Authors' Addresses ................................................19

Turner & Borchert            Standards Track                    [Page 2]
RFC 8208          BGPsec Algs, Key & Signature Formats    September 2017

1.  Introduction

   This document specifies the following:

   o  the digital signature algorithm and parameters,

   o  the hash algorithm and parameters,

   o  the public and private key formats, and

   o  the signature formats

   used by Resource Public Key Infrastructure (RPKI) Certification
   Authorities (CAs) and BGPsec (Border Gateway Protocol Security)
   speakers (i.e., routers).  CAs use these algorithms when processing
   requests for BGPsec Router Certificates [RFC8209].  Examples of when
   BGPsec routers use these algorithms include requesting BGPsec
   certificates [RFC8209], signing BGPsec UPDATE messages [RFC8205], and
   verifying signatures on BGPsec UPDATE messages [RFC8205].

   This document updates [RFC7935] to add support for a) a different
   algorithm for BGPsec certificate requests, which are issued only by
   BGPsec speakers; b) a different Subject Public Key Info format for
   BGPsec certificates, which is needed for the specified BGPsec