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Use of the RSA-KEM Key Transport Algorithm in the Cryptographic Message Syntax (CMS) (RFC5990) Disclosure Number: IPCOM000200025D
Original Publication Date: 2010-Sep-01
Included in the Prior Art Database: 2010-Sep-24
Document File: 54 page(s) / 53K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Randall: AUTHOR [+4]


The RSA-KEM Key Transport Algorithm is a one-pass (store-and-forward) mechanism for transporting keying data to a recipient using the recipient's RSA public key.

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Internet Engineering Task Force (IETF)                        J. Randall Request for Comments: 5990                            Randall Consulting Category: Standards Track                                     B. Kaliski ISSN: 2070-1721                                                      EMC                                                              J. Brainard                                                                      RSA                                                                S. Turner                                                                     IECA                                                           September 2010

                Use of the RSA-KEM Key Transport Algorithm                in the Cryptographic Message Syntax (CMS)


   The RSA-KEM Key Transport Algorithm is a one-pass (store-and-forward)    mechanism for transporting keying data to a recipient using the    recipient's RSA public key.  ("KEM" stands for "key encapsulation    mechanism".)  This document specifies the conventions for using the    RSA-KEM Key Transport Algorithm with the Cryptographic Message Syntax    (CMS).  The ASN.1 syntax is aligned with an expected forthcoming    change to American National Standard (ANS) X9.44.

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 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

 Randall, et al.              Standards Track                    [Page 1]
 RFC 5990                  Use of RSA-KEM in CMS           September 2010

 Copyright Notice

   Copyright (c) 2010 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    ( in effect on the date of    publication of this document.  Please review these documents    carefully, as they des...