RFC 3185 (rfc3185) - Page 1 of 10
Reuse of CMS Content Encryption Keys
Alternative Format: Original Text Document
Network Working Group S. Farrell
Request for Comments: 3185 Baltimore Technologies
Category: Standards Track S. Turner
IECA
October 2001
Reuse of CMS Content Encryption Keys
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2001). All Rights Reserved.
Abstract
This document describes a way to include a key identifier in a CMS
(Cryptographic Message Syntax) enveloped data structure, so that the
content encryption key can be re-used for further enveloped data
packets.
Table Of Contents
1. Introduction................................................... 2
2. Applicability.................................................. 2
3. How to do it................................................... 3
4. Using different CEK and KEK algorithms......................... 4
5. Conformance.................................................... 5
6. Security Considerations........................................ 5
7. References..................................................... 6
Authors' Addresses................................................ 6
Appendix A: ASN.1 Module.......................................... 7
Full Copyright Statement.......................................... 10
Farrell & Turner Standards Track