Commercial National Security Algorithm (CNSA) Suite Profile for TLS and DTLS 1.2 and 1.3
draft-cooley-cnsa-dtls-tls-profile-00

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Network Working Group                                          D. Cooley
Internet-Draft                                                       NSA
Intended status: Informational                           August 14, 2019
Expires: February 15, 2020

Commercial National Security Algorithm (CNSA) Suite Profile for TLS and
                            DTLS 1.2 and 1.3
                 draft-cooley-cnsa-dtls-tls-profile-00

Abstract

   This document defines a base profile for TLS protocol versions 1.2
   and 1.3, as well as DTLS protocol versions 1.2 and 1.3 for use with
   the United States Commercial National Security Algorithm (CNSA)
   Suite.

   The profile applies to the capabilities, configuration, and operation
   of all components of US National Security Systems that use TLS or
   DTLS.  It is also appropriate for all other US Government systems
   that process high-value information.

   The profile is made publicly available here for use by developers and
   operators of these and any other system deployments.

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
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

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   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 February 15, 2020.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Cooley                  Expires February 15, 2020               [Page 1]
Internet-Draft           CNSA Suite TLS Profile              August 2019

   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
   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
   2.  The Commercial National Security Algorithm Suite  . . . . . .   3
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  CNSA Suite  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  CNSA (D)TLS Key Establishment Algorithms  . . . . . . . .   5
     4.2.  CNSA TLS Authentication . . . . . . . . . . . . . . . . .   5
   5.  CNSA Compliance and Interoperability Requirements . . . . . .   6
     5.1.  Acceptable ECC Curves . . . . . . . . . . . . . . . . . .   6
     5.2.  Acceptable RSA Schemes, Parameters and Checks . . . . . .   6
     5.3.  Acceptable Finite Field Groups  . . . . . . . . . . . . .   6
     5.4.  Certificates  . . . . . . . . . . . . . . . . . . . . . .   7
   6.  (D)TLS 1.2 Requirements . . . . . . . . . . . . . . . . . . .   7
     6.1.  The signature_algorithms Extension  . . . . . . . . . . .   7
     6.2.  The CertificateRequest Message  . . . . . . . . . . . . .   8
     6.3.  The CertificateVerify Message . . . . . . . . . . . . . .   8
     6.4.  The Signature in the ServerKeyExchange Message  . . . . .   8
     6.5.  Certificate Status  . . . . . . . . . . . . . . . . . . .   8
   7.  (D)TLS 1.3  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     7.1.  The "signature_algorithms" and
           "signature_algorithms_cert" Extensions  . . . . . . . . .   9
     7.2.  The "early_data" Extension  . . . . . . . . . . . . . . .   9
     7.3.  Resumption  . . . . . . . . . . . . . . . . . . . . . . .   9
     7.4.  Certificate Status  . . . . . . . . . . . . . . . . . . .  10
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  10
     10.2.  Informative References . . . . . . . . . . . . . . . . .  13
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   This document specifies a profile of TLS version 1.2 [RFC5246] and
   TLS version 1.3 [RFC8446], as well as DTLS version 1.2 [RFC6347] and
   DTLS version 1.3 [ID.dtls13] for use by applications that support the
   National Security Agency's (NSA) Commercial National Security
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