Internet Engineering Task Force (IETF) R. Housley
Request for Comments: 5914 Vigil Security, LLC
Category: Standards Track S. Ashmore
ISSN: 2070-1721 National Security Agency
C. Wallace
Cygnacom Solutions
June 2010
Trust Anchor Format
Abstract
This document describes a structure for representing trust anchor
information. A trust anchor is an authoritative entity represented
by a public key and associated data. The public key is used to
verify digital signatures, and the associated data is used to
constrain the types of information or actions for which the trust
anchor is authoritative. The structures defined in this document are
intended to satisfy the format-related requirements defined in Trust
Anchor Management Requirements.
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/rfc5914.
Housley, et al. Standards Track [Page 1]RFC 5914 TAF June 2010Copyright Notice
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
2. Trust Anchor Information Syntax . . . . . . . . . . . . . . . 3
2.1. Version . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2. Public Key . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3. Key Identifier . . . . . . . . . . . . . . . . . . . . . . 4
2.4. Trust Anchor Title . . . . . . . . . . . . . . . . . . . . 4
2.5. Certification Path Controls . . . . . . . . . . . . . . . 4
2.6. Extensions . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Trust Anchor List . . . . . . . . . . . . . . . . . . . . . . 8
4. Security Considerations . . . . . . . . . . . . . . . . . . . 9
5. References . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1. Normative References . . . . . . . . . . . . . . . . . . . 9
5.2. Informative References . . . . . . . . . . . . . . . . . . 10
Appendix A. ASN.1 Modules . . . . . . . . . . . . . . . . . . . . 11
A.1. ASN.1 Module Using 2002 Syntax . . . . . . . . . . . . . . 11
A.2. ASN.1 Module Using 1988 Syntax . . . . . . . . . . . . . . 12
A.2.1. ASN.1 Module . . . . . . . . . . . . . . . . . . . . . 12
Housley, et al. Standards Track [Page 2]RFC 5914 TAF June 20101. Introduction
Trust anchors are widely used to verify digital signatures and
datatracker.ietf.org