Using AES-CCM and AES-GCM Authenticated Encryption in the Cryptographic Message Syntax (CMS)
Draft of message to be sent after approval:
From: The IESG <firstname.lastname@example.org> To: IETF-Announce <email@example.com> Cc: Internet Architecture Board <firstname.lastname@example.org>, RFC Editor <email@example.com>, smime mailing list <firstname.lastname@example.org>, smime chair <email@example.com> Subject: Protocol Action: 'Using AES-CCM and AES-GCM Authenticated Encryption in the Cryptographic Message Syntax (CMS)' to Proposed Standard The IESG has approved the following document: - 'Using AES-CCM and AES-GCM Authenticated Encryption in the Cryptographic Message Syntax (CMS) ' <draft-ietf-smime-cms-aes-ccm-and-gcm-04.txt> as a Proposed Standard This document is the product of the S/MIME Mail Security Working Group. The IESG contact persons are Tim Polk and Pasi Eronen. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-smime-cms-aes-ccm-and-gcm-04.txt
Technical Summary This document specifies the conventions for using the AES-CCM and the AES-GCM authenticated encryption algorithms with the Cryptographic Message Syntax (CMS) authenticated-enveloped-data content type. Working Group Summary This document is a product of the S/MIME working group. The document is straightforward, describing how to use AES in CCM and GCM modes with the new CMS content-type: Authenticated-Enveloped Data. The document provides some background on the algorithms, OIDs, and where to put the OIDs in the ASN.1. The working group had no issues with the content of this specification. Protocol Quality Tim Polk reviewed this specification for the IESG. There are no current implementations, but working group participants have expressed interest in implementing this specification. Note to RFC Editor This document contains a normative reference to [GCM], a standard that is in progress at another standards development organization. Final publication is expected in August 2007. Please confirm final publication of NIST Special Publication 800-38D "Recommendation for Block Cipher Modes of Operation: Galois/Counter Mode (GCM) and GMAC" before publishing this RFC. To verify the status of 800-38D and confirm the URL, please contact<firstname.lastname@example.org> before publication. Please CC <email@example.com> on the message. Please replace the current citation for [GCM] with the following text: OLD [GCM] McGrew, D. and J. Viega, "The Galois/Counter Mode of Operation (GCM)", Submission to NIST, May 2005. http://csrc.nist.gov/CryptoToolkit/modes/proposedmodes/ gcm/gcm-revised-spec.pdf. NEW [GCM] Dworkin, M., "NIST Special Publication 800-38D: Recommendation for Block Cipher Modes of Operation: Galois/Counter Mode (GCM) and GMAC.", U.S. National Institute of Standards and Technology http:// csrc.nist.gov/publications/nistpubs/800-38D/SP800-38D.pdf.