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Using ChaCha20-Poly1305 Authenticated Encryption in the Cryptographic Message Syntax (CMS) (RFC8103)

IP.com Disclosure Number: IPCOM000249492D
Original Publication Date: 2017-Feb-01
Included in the Prior Art Database: 2017-Mar-01
Document File: 18 page(s) / 19K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Housley: AUTHOR

Abstract

This document specifies the conventions for using ChaCha20-Poly1305 Authenticated Encryption with the Cryptographic Message Syntax (CMS) [CMS] authenticated-enveloped-data content type [AUTHENV].

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 15% of the total text.

Internet Engineering Task Force (IETF)                        R. Housley Request for Comments: 8103                                Vigil Security Category: Standards Track                                  February 2017 ISSN: 2070-1721

             Using ChaCha20-Poly1305 Authenticated Encryption                in the Cryptographic Message Syntax (CMS)

Abstract

   This document describes the conventions for using ChaCha20-Poly1305    Authenticated Encryption in the Cryptographic Message Syntax (CMS).    ChaCha20-Poly1305 is an authenticated encryption algorithm    constructed of the ChaCha stream cipher and Poly1305 authenticator.

Status of This Memo

   This is an Internet Standards Track document.

   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).  Further information on    Internet Standards is available in 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    http://www.rfc-editor.org/info/rfc8103.

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    (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.

Housley                      Standards Track                    [Page 1]
 RFC 8103          Using AEAD_CHACHA20_POLY1305 with CMS    February 2017

 Table of Contents

   1. Introduction ....................................................2

      1.1. The ChaCha20 and Poly1305 AEAD Construction ................3

      1.2. ASN.1 ......................................................3

      1.3. Terminology ................................................3

   2. Key Management ..................................................4

   3. Using the AEAD_CHACHA20_POLY1305 Algorithm with

      AuthEnvelopedData ...............................................4

   4. S/MIME Capabilities Attribute ...................................5

   5. IANA Considerations .............................................6

   6. Secur...