--- 1/draft-ietf-lamps-eai-addresses-16.txt 2018-02-12 03:13:09.124427934 -0800 +++ 2/draft-ietf-lamps-eai-addresses-17.txt 2018-02-12 03:13:09.152428598 -0800 @@ -1,19 +1,19 @@ LAMPS A. Melnikov, Ed. Internet-Draft Isode Ltd Updates: 5280 (if approved) W. Chuang, Ed. Intended status: Standards Track Google, Inc. -Expires: July 15, 2018 January 11, 2018 +Expires: August 15, 2018 February 11, 2018 Internationalized Email Addresses in X.509 certificates - draft-ietf-lamps-eai-addresses-16 + draft-ietf-lamps-eai-addresses-17 Abstract This document defines a new name form for inclusion in the otherName field of an X.509 Subject Alternative Name and Issuer Alternative Name extension that allows a certificate subject to be associated with an Internationalized Email Address. This document updates RFC 5280. @@ -25,21 +25,21 @@ 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 https://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 July 15, 2018. + This Internet-Draft will expire on August 15, 2018. Copyright Notice Copyright (c) 2018 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 (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents @@ -130,23 +130,22 @@ restrictions as specified by Section 2.3.1 of [RFC5890] and SHALL be restricted to lower case letters. NR-LDH stands for "Non-Reserved Letters Digits Hyphen" and is the set of LDH labels that do not have "--" characters in the third and forth character position, which excludes "tagged domain names" such as A-labels. Consistent with the treatment of rfc822Name in [RFC5280], SmtpUTF8Mailbox is an envelope and 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 ">". - Due to operational reasons to be described shortly and name - constraint compatibility reasons described in Section 6, - SmtpUTF8Mailbox subjectAltName MUST only be used when the local-part + Due to name constraint compatibility reasons described in Section 6, + SmtpUTF8Mailbox subjectAltName MUST NOT be used unless the local-part of the email address contains non-ASCII characters. When the local- part is ASCII, rfc822Name subjectAltName MUST be used instead of SmtpUTF8Mailbox. This is compatible with legacy software that supports only rfc822Name (and not SmtpUTF8Mailbox). The appropriate usage of rfc822Name and SmtpUTF8Mailbox is summarized in Table 1 below. SmtpUTF8Mailbox is encoded as UTF8String. The UTF8String encoding MUST NOT contain a Byte-Order- Mark (BOM) [RFC3629] to aid consistency across implementations particularly for comparison. @@ -161,21 +160,21 @@ +-----------------+-------------+--------------+-----------------+ non-ASCII may additionally include ASCII characters. Table 1: Email address formatting 4. IDNA2008 To facilitate comparison between email addresses, all email address domains in X.509 certificates MUST conform to IDNA2008 [RFC5890] (and - avoids any "mappings" mentioned in that document). Use of non- + avoid any "mappings" mentioned in that document). Use of non- conforming email address domains introduces the possibility of conversion errors between alternate forms. This applies to SmtpUTF8Mailbox and rfc822Name in subjectAltName, issuerAltName and anywhere else that these are used. 5. Matching of Internationalized Email Addresses in X.509 certificates In equivalence comparison with SmtpUTF8Mailbox, there may be some setup work on one or both inputs depending of whether the input is already in comparison form. Comparing SmtpUTF8Mailboxs consists of a