RFC4010-Use of the SEED Encryption Algorithm in Cryptographic Message Syntax (CMS)

Network Working Group                                            J. Park
Request for Comments: 4010                                        S. Lee
Category: Standards Track                                         J. Kim
                                                                  J. Lee
                                                                    KISA
                                                           February 2005


                  Use of the SEED Encryption Algorithm
                 in Cryptographic Message Syntax (CMS)

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 (2005).

Abstract

   This document specifies the conventions for using the SEED encryption
   algorithm for encryption with the Cryptographic Message Syntax (CMS).

   SEED is added to the set of optional symmetric encryption algorithms
   in CMS by providing two classes of unique object identifiers (OIDs).
   One OID class defines the content encryption algorithms and the other
   defines the key encryption algorithms.

1.  Introduction

   This document specifies the conventions for using the SEED encryption
   algorithm [SEED][TTASSEED] for encryption with the Cryptographic
   Message Syntax (CMS)[CMS].  The relevant object identifiers (OIDs)
   and processing steps are provided so that SEED may be used in the CMS
   specification (RFC 3852, RFC 3370) for content and key encryption.

1.1.  SEED

   SEED is a symmetric encryption algorithm developed by KISA (Korea
   Information Security Agency) and a group of experts since 1998.  The
   input/output block size and key length of SEED is 128-bits.  SEED has
   the 16-round Feistel structure.  A 128-bit input is divided into two
   64-bit blocks and the right 64-bit block is an input to the round
   function, with a 64-bit subkey generated from the key scheduling.

   SEED is easily implemented in various software and hardware because
   it takes less memory to implement than other algorithms and generates
   keys without degrading the security of the algorithm.  In particular,
   it can be effectively adopted in a computing environment with a


            

              
 
                
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