Secure Inter-Domain Routing Working Group S. Turner
Internet-Draft IECA
Updates: 6485 (if approved) March 26, 2013
Intended Status: Standards Track
Expires: September 27, 2013
BGP Algorithms, Key Formats, & Signature Formats
draft-ietf-sidr-bgpsec-algs-04
Abstract
This document specifies the algorithms, algorithms' parameters,
asymmetric key formats, asymmetric key size and signature format used
in BGPSEC (Border Gateway Protocol Security). This document updates
the Profile for Algorithms and Key Sizes for use in the Resource
Public Key Infrastructure (RFC 6485).
Status of this Memo
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1. Introduction
This document specifies:
o the digital signature algorithm and parameters;
o the hash algorithm and parameters;
o the public and private key formats; and,
o the signature format
used by Resource Public Key Infrastructure (RPKI) Certification
Authorities (CA), and BGPSEC (Border Gateway Protocol Security)
speakers (i.e., routers). CAs use these algorithms when issuing
BGPSEC Router Certificates [ID.bgpsec-pki-profiles] and CRLs
[RFC6487]. BGPSEC routers use these when requesting BGPSEC
certificates [ID.bgpsec-pki-profiles], generating BGPSEC Update
messages [ID.sidr-bgpsec-protocol], and verifying BGPSEC Update
messages [ID.sidr-bgpsec-protocol].
This document is referenced by the BGPSEC specification [ID.bgpsec-
protocol] and the profile for BGPSEC Router Certificates and
Certification Requests [ID.bgpsec-pki-profiles]. Familiarity with
these documents is assumed. Implementers are reminded, however,
that, as noted in Section 2 of [ID.bgpsec-pki-profiles], the
algorithms used to sign CA Certificates, BGPSEC Router Certificates,
and CRLs are found in [RFC6485].
This document updates [RFC6485] to add support for a) a different
algorithm for BGPSEC certificate requests, which are only issued by
BGPSEC speakers; b) a different Subject Public Key Info format for
BGPSEC certificates, which is needed for the specified BGPSEC
signature algorithm; and, c) a different signature format for BGPSEC
signatures, which is needed for the specified BGPSEC signature
algorithm. The BGPSEC certificate are differentiated from other RPKI
certificates by the use of the BGPSEC Extended Key Usage defined in
[ID.bgpsec-pki-profiles].
1.1. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in
[RFC2119].
2. Algorithms
Four cryptographic algorithms are used to support BGPSEC:
o The signature algorithm used when issuing BGPSEC certificates and
CRLs, which would revoke BGPSEC certificates, MUST be as
specified in [RFC6485].
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