ShangMi (SM) Cipher Suites for Transport Layer Security (TLS) Protocol Version 1.3
draft-yang-tls-tls13-sm-suites-06

Document Type Active Internet-Draft (individual)
Author Paul Yang 
Last updated 2021-03-04 (latest revision 2020-09-27)
Stream Independent Submission
Intended RFC status Informational
Formats plain text xml pdf htmlized (tools) htmlized bibtex
IETF conflict review conflict-review-yang-tls-tls13-sm-suites
Additional Resources
- Github repository for original Markdown file of this draft.
Stream ISE state Sent to the RFC Editor
Consensus Boilerplate Unknown
Document shepherd Adrian Farrel
Shepherd write-up Show (last changed 2020-12-15)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to Adrian Farrel <rfc-ise@rfc-editor.org>
IANA IANA review state IANA OK - Actions Needed
IANA action state RFC-Ed-Ack
IANA expert review state Expert Reviews OK
RFC Editor RFC Editor state AUTH48
Details
TLS                                                              P. Yang
Internet-Draft                                                 Ant Group
Intended status: Informational                        September 27, 2020
Expires: March 31, 2021

 ShangMi (SM) Cipher Suites for Transport Layer Security (TLS) Protocol
                              Version 1.3
                   draft-yang-tls-tls13-sm-suites-06

Abstract

   This document specifies how to use the ShangMi (SM) cryptographic
   algorithms with Transport Layer Security (TLS) protocol version 1.3.

   The use of these algorithms with TLSv1.3 is not endorsed by the IETF.
   The SM algorithms are becoming mandatory in China, and so this
   document provides a description of how to use the SM algorithms with
   TLSv1.3 and specifies a profile of TLSv1.3 so that implementers can
   produce interworking implementations.

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 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 March 31, 2021.

Copyright Notice

   Copyright (c) 2020 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
   carefully, as they describe your rights and restrictions with respect

Yang                     Expires March 31, 2021                 [Page 1]
Internet-Draft          TLSv1.3 SM Cipher Suites          September 2020

   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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  The SM Algorithms . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Algorithm Identifiers . . . . . . . . . . . . . . . . . . . .   4
   3.  Algorithm Definitions . . . . . . . . . . . . . . . . . . . .   4
     3.1.  TLS Versions  . . . . . . . . . . . . . . . . . . . . . .   4
     3.2.  Authentication  . . . . . . . . . . . . . . . . . . . . .   4
       3.2.1.  SM2 Signature Scheme  . . . . . . . . . . . . . . . .   4
     3.3.  Key Exchange  . . . . . . . . . . . . . . . . . . . . . .   6
       3.3.1.  Hello Messages  . . . . . . . . . . . . . . . . . . .   6
       3.3.2.  CertificateRequest  . . . . . . . . . . . . . . . . .   7
       3.3.3.  Certificate . . . . . . . . . . . . . . . . . . . . .   7
       3.3.4.  CertificateVerify . . . . . . . . . . . . . . . . . .   7
     3.4.  Key Scheduling  . . . . . . . . . . . . . . . . . . . . .   7
     3.5.  Cipher  . . . . . . . . . . . . . . . . . . . . . . . . .   8
       3.5.1.  AEAD_SM4_GCM  . . . . . . . . . . . . . . . . . . . .   8
       3.5.2.  AEAD_SM4_CCM  . . . . . . . . . . . . . . . . . . . .   9
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .  11
     6.2.  Informative References  . . . . . . . . . . . . . . . . .  12
   Appendix A.  Test Vectors . . . . . . . . . . . . . . . . . . . .  13
     A.1.  SM4-GCM Test Vectors  . . . . . . . . . . . . . . . . . .  13
     A.2.  SM4-CCM Test Vectors  . . . . . . . . . . . . . . . . . .  13
   Appendix B.  Contributors . . . . . . . . . . . . . . . . . . . .  13
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   This document describes two new cipher suites, a signature algorithm,
   and a key-exchange mechanism for the Transport Layer Security (TLS)
   protocol version 1.3 (TLSv1.3, [RFC8446]).  These all utilize several
   ShangMi (SM) cryptographic algorithms to fulfil the authentication
   and confidentiality requirements of TLS 1.3.  The new cipher suites
   are (see also Section 2):

      CipherSuite TLS_SM4_GCM_SM3 = { 0x00, 0xC6 };
      CipherSuite TLS_SM4_CCM_SM3 = { 0x00, 0xC7 };

Yang                     Expires March 31, 2021                 [Page 2]
Show full document text