[Docs] [txt|pdf] [Tracker] [WG] [Email] [Nits]

Versions: 00 draft-melnikov-spasm-eai-addresses

Network Working Group                                   A. Melnikov, Ed.
Internet-Draft                                                 Isode Ltd
Intended status: Standards Track                           March 7, 2011
Expires: September 8, 2011


        Internationalized Email Addresses in X.509 certificates
                    draft-ietf-pkix-eai-addresses-00

Abstract

   This document defines a new name form for inclusion in the otherName
   field of an X.509 Subject Alternative Name extension that allows a
   certificate subject to be associated with an Internationalized Email
   Address.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on September 8, 2011.

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.




Melnikov                Expires September 8, 2011               [Page 1]


Internet-Draft  I18N Mail Addresses in X.509 certificates     March 2011


Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  Conventions Used in This Document . . . . . . . . . . . . . . . 3
   3.  Name Definitions  . . . . . . . . . . . . . . . . . . . . . . . 3
   4.  Matching of Internationalized Email Addresses in X.509
       certificates  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 4
   6.  Security Considerations . . . . . . . . . . . . . . . . . . . . 4
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 4
     7.1.  Normative References  . . . . . . . . . . . . . . . . . . . 4
     7.2.  Informative References  . . . . . . . . . . . . . . . . . . 4
   Appendix A.  Acknowledgements . . . . . . . . . . . . . . . . . . . 4
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . . . 4





































Melnikov                Expires September 8, 2011               [Page 2]


Internet-Draft  I18N Mail Addresses in X.509 certificates     March 2011


1.  Introduction

   [RFC5280] defines rfc822Name subjectAltName choice for representing
   [RFC5322] email addresses.  This form is restricted to a subset of
   US-ASCII characters and thus can't be used to represent
   Internationalized Email addresses [I-D.ietf-eai-rfc5336bis].


2.  Conventions Used in This Document

   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 [RFC2119].

   The formal syntax use the Augmented Backus-Naur Form (ABNF) [RFC5234]
   notation.


3.  Name Definitions

   This section defines the eaiName name as a form of otherName from the
   GeneralName structure in SubjectAltName defined in [RFC5280].

   id-on-eaiAddr OBJECT IDENTIFIER ::= { id-on XXX }

   eaiName ::= UTF8String (SIZE (1..MAX))

   When the subjectAltName extension contains an Internationalized Email
   address, the address MUST be stored in the eaiName name form of
   otherName.  The format of an eaiName is a <eaiMailbox> as defined
   below.  A eaiMailbox has the form "Local-part@Domain".  Note that a
   eaiMailbox has no phrase (such as a common name) before it, has no
   comment (text surrounded in parentheses) after it, and is not
   surrounded by "<" and ">".

   eaiMailbox = uLocal-part "@" uDomain

   uLocal-part and uDomain are defined in [I-D.ietf-eai-rfc5336bis].


4.  Matching of Internationalized Email Addresses in X.509 certificates

   The <uLocal-part> part of an Internationalized email address is in
   UTF-8 and need to be compared octet for octet.

   The <uDomain> can contain either IDN domain or an ASCII Compatible
   Encoding (ACE) format.  When comparing two <uDomain>s both MUST be
   converted to the ACE form as described in section 7.2 of [RFC5280].



Melnikov                Expires September 8, 2011               [Page 3]


Internet-Draft  I18N Mail Addresses in X.509 certificates     March 2011


5.  IANA Considerations

   [[anchor6: Just need a new OID.]]


6.  Security Considerations

   [[anchor7: TBD]]


7.  References

7.1.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC3629]  Yergeau, F., "UTF-8, a transformation format of ISO
              10646", STD 63, RFC 3629, November 2003.

   [RFC5234]  Crocker, D. and P. Overell, "Augmented BNF for Syntax
              Specifications: ABNF", STD 68, RFC 5234, January 2008.

   [RFC5280]  Cooper, D., Santesson, S., Farrell, S., Boeyen, S.,
              Housley, R., and W. Polk, "Internet X.509 Public Key
              Infrastructure Certificate and Certificate Revocation List
              (CRL) Profile", RFC 5280, May 2008.

   [I-D.ietf-eai-rfc5336bis]
              Yao, J. and W. Mao, "SMTP extension for internationalized
              email address", draft-ietf-eai-rfc5336bis-08 (work in
              progress), March 2011.

7.2.  Informative References

   [RFC5322]  Resnick, P., Ed., "Internet Message Format", RFC 5322,
              October 2008.


Appendix A.  Acknowledgements

   Thank you to Magnus Nystrom for motivating this document.









Melnikov                Expires September 8, 2011               [Page 4]


Internet-Draft  I18N Mail Addresses in X.509 certificates     March 2011


Author's Address

   Alexey Melnikov (editor)
   Isode Ltd
   5 Castle Business Village
   36 Station Road
   Hampton, Middlesex  TW12 2BX
   UK

   Email: Alexey.Melnikov@isode.com









































Melnikov                Expires September 8, 2011               [Page 5]


Html markup produced by rfcmarkup 1.129b, available from https://tools.ietf.org/tools/rfcmarkup/