A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the S/MIME Mail Security Working Group of the IETF.
Title : Cryptographic Message Syntax (CMS) Authenticated-Enveloped-Data Content Type
Author(s) : R. Housley
Filename : draft-ietf-smime-cms-auth-enveloped-06.txt
Pages : 12
Date : 2007-09-21
This document describes an additional content type for the
Cryptographic Message Syntax (CMS). The authenticated-enveloped-data
content type is intended for use with authenticated encryption modes.
All of the various key management techniques that are supported in
the CMS enveloped-data content type are also supported by the CMS
authenticated-enveloped-data content type.1. Introduction
This document describes an additional content type for the
Cryptographic Message Syntax (CMS) [CMS]. The authenticated-
enveloped-data content type is intended for use with authenticated
encryption modes, where an arbitrary content is both authenticated
and encrypted. Also, some associated data, in the form of
authenticated attributes can also be authenticated. All of the
various key management techniques that are supported in the CMS
enveloped-data content type are also supported by the CMS
authenticated-enveloped-data content type.
The conventions for using the AES-CCM and the AES-GCM authenticated
encryption algorithms with the CMS authenticated-enveloped-data
content type defined in this document can be found in [AESALGS].
The authenticated-enveloped-data content type, like all of the other
CMS content types, employs ASN.1 [X.208-88], and it uses both the
Basic Encoding Rules [X.209-88] and the Distinguished Encoding Rules
(DER) [X.509-88].
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