The ARIA Algorithm and Its Use with the Secure Real-Time Transport Protocol (SRTP)
RFC 8269

Document Type RFC - Informational (October 2017; No errata)
Last updated 2017-10-16
Replaces draft-nsri-avtcore-aria-srtp
Stream IETF
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Stream WG state Submitted to IESG for Publication
Document shepherd Roni Even
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IESG IESG state RFC 8269 (Informational)
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Responsible AD Ben Campbell
Send notices to Roni Even <roni.even@huawei.com>
IANA IANA review state Version Changed - Review Needed
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Internet Engineering Task Force (IETF)                            W. Kim
Request for Comments: 8269                                        J. Lee
Category: Informational                                          J. Park
ISSN: 2070-1721                                                  D. Kwon
                                                                    NSRI
                                                                  D. Kim
                                                           Kookmin Univ.
                                                            October 2017

                  The ARIA Algorithm and Its Use with
             the Secure Real-Time Transport Protocol (SRTP)

Abstract

   This document defines the use of the ARIA block cipher algorithm
   within the Secure Real-time Transport Protocol (SRTP).  It details
   two modes of operation (CTR and GCM) and the SRTP key derivation
   functions for ARIA.  Additionally, this document defines DTLS-SRTP
   protection profiles and Multimedia Internet KEYing (MIKEY) parameter
   sets for use with ARIA.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   https://www.rfc-editor.org/info/rfc8269.

Kim, et al.                   Informational                     [Page 1]
RFC 8269                 ARIA Algorithm for SRTP            October 2017

Copyright Notice

   Copyright (c) 2017 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
   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  ARIA  . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Cryptographic Transforms  . . . . . . . . . . . . . . . . . .   3
     2.1.  ARIA-CTR  . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.2.  ARIA-GCM  . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Key Derivation Functions  . . . . . . . . . . . . . . . . . .   4
   4.  Protection Profiles . . . . . . . . . . . . . . . . . . . . .   4
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
     6.1.  DTLS-SRTP . . . . . . . . . . . . . . . . . . . . . . . .   8
     6.2.  MIKEY . . . . . . . . . . . . . . . . . . . . . . . . . .   8
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .   9
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  11
   Appendix A.  Test Vectors . . . . . . . . . . . . . . . . . . . .  12
     A.1.  ARIA-CTR Test Vectors . . . . . . . . . . . . . . . . . .  12
       A.1.1.  SRTP_ARIA_128_CTR_HMAC_SHA1_80  . . . . . . . . . . .  12
       A.1.2.  SRTP_ARIA_256_CTR_HMAC_SHA1_80  . . . . . . . . . . .  13
     A.2.  ARIA-GCM Test Vectors . . . . . . . . . . . . . . . . . .  14
       A.2.1.  SRTP_AEAD_ARIA_128_GCM  . . . . . . . . . . . . . . .  14
       A.2.2.  SRTP_AEAD_ARIA_256_GCM  . . . . . . . . . . . . . . .  15
     A.3.  Key Derivation Test Vectors . . . . . . . . . . . . . . .  15
       A.3.1.  ARIA_128_CTR_PRF  . . . . . . . . . . . . . . . . . .  15
       A.3.2.  ARIA_256_CTR_PRF  . . . . . . . . . . . . . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  19

Kim, et al.                   Informational                     [Page 2]
RFC 8269                 ARIA Algorithm for SRTP            October 2017

1.  Introduction

   This document defines the use of the ARIA block cipher algorithm
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