Representation and Verification of Domain-Based Application Service Identity within Internet Public Key Infrastructure Using X.509 (PKIX) Certificates in the Context of Transport Layer Security (TLS)
RFC 6125
Document | Type |
RFC - Proposed Standard
(March 2011; Errata)
Was draft-saintandre-tls-server-id-check (individual in app area)
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Authors | Peter Saint-Andre , Jeff Hodges | ||
Last updated | 2015-10-14 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6125 (Proposed Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Alexey Melnikov | ||
Send notices to | kurt.zeilenga@isode.com |
Internet Engineering Task Force (IETF) P. Saint-Andre Request for Comments: 6125 Cisco Category: Standards Track J. Hodges ISSN: 2070-1721 PayPal March 2011 Representation and Verification of Domain-Based Application Service Identity within Internet Public Key Infrastructure Using X.509 (PKIX) Certificates in the Context of Transport Layer Security (TLS) Abstract Many application technologies enable secure communication between two entities by means of Internet Public Key Infrastructure Using X.509 (PKIX) certificates in the context of Transport Layer Security (TLS). This document specifies procedures for representing and verifying the identity of application services in such interactions. 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/rfc6125. Copyright Notice Copyright (c) 2011 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 (http://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. Saint-Andre & Hodges Standards Track [Page 1] RFC 6125 Service Identity March 2011 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1. Motivation . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2. Audience . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.3. How to Read This Document . . . . . . . . . . . . . . . . 4 1.4. Applicability . . . . . . . . . . . . . . . . . . . . . . 5 1.5. Overview of Recommendations . . . . . . . . . . . . . . . 5 1.6. Generalization from Current Technologies . . . . . . . . . 6 1.7. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.7.1. In Scope . . . . . . . . . . . . . . . . . . . . . . . 7 1.7.2. Out of Scope . . . . . . . . . . . . . . . . . . . . . 7 1.8. Terminology . . . . . . . . . . . . . . . . . . . . . . . 9 2. Naming of Application Services . . . . . . . . . . . . . . . . 13 2.1. Naming Application Services . . . . . . . . . . . . . . . 13 2.2. DNS Domain Names . . . . . . . . . . . . . . . . . . . . . 14 2.3. Subject Naming in PKIX Certificates . . . . . . . . . . . 15 2.3.1. Implementation Notes . . . . . . . . . . . . . . . . . 17 3. Designing Application Protocols . . . . . . . . . . . . . . . 18 4. Representing Server Identity . . . . . . . . . . . . . . . . . 18 4.1. Rules . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.2. Examples . . . . . . . . . . . . . . . . . . . . . . . . . 20 5. Requesting Server Certificates . . . . . . . . . . . . . . . . 21 6. Verifying Service Identity . . . . . . . . . . . . . . . . . . 21 6.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.2. Constructing a List of Reference Identifiers . . . . . . . 22 6.2.1. Rules . . . . . . . . . . . . . . . . . . . . . . . . 22 6.2.2. Examples . . . . . . . . . . . . . . . . . . . . . . . 24 6.3. Preparing to Seek a Match . . . . . . . . . . . . . . . . 25 6.4. Matching the DNS Domain Name Portion . . . . . . . . . . . 26 6.4.1. Checking of Traditional Domain Names . . . . . . . . . 27 6.4.2. Checking of Internationalized Domain Names . . . . . . 27 6.4.3. Checking of Wildcard Certificates . . . . . . . . . . 27 6.4.4. Checking of Common Names . . . . . . . . . . . . . . . 28 6.5. Matching the Application Service Type Portion . . . . . . 28 6.5.1. SRV-ID . . . . . . . . . . . . . . . . . . . . . . . . 29 6.5.2. URI-ID . . . . . . . . . . . . . . . . . . . . . . . . 29 6.6. Outcome . . . . . . . . . . . . . . . . . . . . . . . . . 29Show full document text