Examples of S/MIME Messages
RFC 4134

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Network Working Group                                    P. Hoffman, Ed.
Request for Comments: 4134                      Internet Mail Consortium
Category: Informational                                        July 2005

                      Examples of S/MIME Messages

Status of This Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   This document gives examples of message bodies formatted using
   S/MIME.  Specifically, it has examples of Cryptographic Message
   Syntax (CMS) objects and S/MIME messages (including the MIME
   formatting).  It includes examples of many common CMS formats.  The
   purpose of this document is to help increase interoperability for
   S/MIME and other protocols that rely on CMS.

Hoffman, Ed.                 Informational                      [Page 1]
RFC 4134              Examples of S/MIME Messages              July 2005

Table of Contents

   1.  Introduction ................................................   3
   2.  Constants Used in the Examples ..............................   3
       2.1.  Content of Documents ..................................   4
       2.2.  Private Keys ..........................................   4
       2.3.  Certificates ..........................................  13
       2.4.  CRLs ..................................................  33
   3.  Trivial Examples ............................................  39
       3.1.  ContentInfo with Data Type, BER .......................  39
       3.2.  ContentInfo with Data Type, DER .......................  39
   4.  Signed-data .................................................  39
       4.1.  Basic Signed Content, DSS .............................  39
       4.2.  Basic Signed Content, RSA .............................  44
       4.3.  Basic Signed Content, Detached Content ................  49
       4.4.  Fancier Signed Content ................................  53
       4.5.  All RSA Signed Message ................................  68
       4.6.  Multiple Signers ......................................  75
       4.7.  Signing Using SKI .....................................  83
       4.8.  S/MIME multipart/signed Message .......................  87
       4.9.  S/MIME application/pkcs7-mime Signed Message ..........  88
       4.10. SignedData with Attributes ............................  89
       4.11. SignedData with Certificates Only ..................... 101
   5.  Enveloped-data .............................................. 109
       5.1.  Basic Encrypted Content, TripleDES and RSA ............ 109
       5.2.  Basic Encrypted Content, RC2/128 and RSA .............. 110
       5.3.  S/MIME application/pkcs7-mime Encrypted Message ....... 112
   6.  Digested-data ............................................... 112
   7.  Encrypted-data .............................................. 113
       7.1.  Simple EncryptedData .................................. 113
       7.2.  EncryptedData with Unprotected Attributes ............. 114
   8.  Security Considerations ..................................... 115
   9.  References .................................................. 115
       9.1.  Normative References .................................. 115
       9.2.  Informative References ................................ 115
   A.  Binaries of the Examples .................................... 116
       A.1.  How the Binaries and Extractor Works .................. 116
       A.2.  Example Extraction Program ............................ 116
   B.  Examples in Order of Appearance ............................. 118
   C.  Acknowledgements ............................................ 135

Hoffman, Ed.                 Informational                      [Page 2]
RFC 4134              Examples of S/MIME Messages              July 2005

1.  Introduction

   The examples in this document show the structure and format of CMS
   message bodies, as described in [CMS].  They are useful to
   implementors who use protocols that rely on CMS, such as the S/MIME
   message format protocol.  There are also examples of simple S/MIME
   messages [SMIME-MSG] (including the MIME headers).

   Every example in this document has been checked by two different
   implementors.  This strongly indicates (but does not assure) that the
   examples are correct.  All CMS implementors must read the CMS
   document carefully before implementing from it.  No one should use
   the examples in this document as stand-alone explanations of how to
   create CMS message bodies.

   This document explicitly does not attempt to cover many PKIX [PKIX]
   examples.  Documents with examples of that format may be forthcoming.
   Also, note that [DVCS], which covers PKIX Data Validation and
   Certification Server Protocols, has examples of formats for its