Internationalization Updates to RFC 5280
draft-housley-rfc5280-i18n-update-00

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INTERNET-DRAFT                                                          
Internet Engineering Task Force                               R. Housley
Intended Status: Proposed Standard                        Vigil Security
Updates: RFC 5280 (once approved)                                       
Expires: 5 July 2017                                      5 January 2017

                Internationalization Updates to RFC 5280
                  draft-housley-rfc5280-i18n-update-00

Abstract

   These updates to RFC 5280 provide clarity on the handling of
   Internationalized Domain Names (IDNs) and Internationalized Email
   Addresses in X.509 Certificates.

Status of this Memo

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   provisions of BCP 78 and BCP 79.

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Copyright and License Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors. All rights reserved.

 

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INTERNET-DRAFT          I18n Updates to RFC 5280          5 January 2017

   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
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   described in the Simplified BSD License.

1.  Introduction

   These updates to the Introduction and Section 7 of RFC 5280 [RFC5280]
   provide clarity on the handling of Internationalized Domain Names
   (IDNs) and Internationalized Email Addresses in X.509 Certificates.

   IDNs are converted to punycode.  The punycode form is carried in
   certificate, and the punycode form is used to compare two IDNs.

   The conversion to punycode is defined in Section 4 of RFC 3490
   [RFC3490].  In addition, Section 7.2 of RFC 5280 [RFC5280] provides
   some guidance about the flags used in that process.  That guidance is
   not changed by this update.

   Note that Internationalized Domain Names in Applications
   specification published in 2008 (IDNA2008) [RFC5891][RFC5892] also
   refer to RFC 3490 for the conversion to punycode.

   Internationalized Email Addresses that contain non-ASCII characters
   in the local-part of the address follow the conventions recently
   specified by the IETF LAMPS working group.

1.1.  Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

2.  Updates

   This section provides updates to several paragraphs in the
   Introduction and Section 7 of RFC 5280 [RFC5280].  For clarity, the
   original text and the replacement text are shown. 

 

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2.1.  Update in Section 1, Introduction

OLD

      * Enhanced support for internationalized names is specified in
        Section 7, with rules for encoding and comparing
        Internationalized Domain Names, Internationalized Resource
        Identifiers (IRIs), and distinguished names.  These rules are
        aligned with comparison rules established in current RFCs,
        including [RFC3490], [RFC3987], and [RFC4518].

NEW

      * Enhanced support for internationalized names is specified in
        Section 7, with rules for encoding and comparing
        Internationalized Domain Names, Internationalized Resource
        Identifiers (IRIs), and distinguished names.  These rules are
        aligned with comparison rules established in current RFCs,
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