RFC 3767 (rfc3767) - Page 1 of 25

Securely Available Credentials Protocol

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Network Working Group                                    S. Farrell, Ed.
Request for Comments: 3767                        Trinity College Dublin
Category: Standards Track                                      June 2004


                Securely Available Credentials Protocol

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 (2004).

Abstract

   This document describes a protocol whereby a user can acquire
   cryptographic credentials (e.g., private keys, PKCS #15 structures)
   from a credential server, using a workstation that has locally
   trusted software installed, but with no user-specific configuration.
   The protocol's payloads are described in XML.  This memo also
   specifies a Blocks Extensible Exchange Protocol (BEEP) profile of the
   protocol.  Security requirements are  met by mandating support for
   TLS and/or DIGEST-MD5 (through BEEP).

Table Of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
   2.  The Protocol. . . . . .  . . . . . . . . . . . . . . . . . . .  3
   3.  BEEP Profile for SACRED. . . . . . . . . . . . . . . . . . . .  9
   4.  IANA Considerations. . . . . . . . . . . . . . . . . . . . . . 12
   5.  Security Considerations. . . . . . . . . . . . . . . . . . . . 13
   6.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 15
   Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . 16
   Appendix A: XML Schema . . . . . . . . . . . . . . . . . . . . . . 17
   Appendix B: An Example of Tuning with BEEP . . . . . . . . . . . . 20
   Appendix C: Provision SACRED using other Protocols . . . . . . . . 23
   Editor's Address . . . . . . . . . . . . . . . . . . . . . . . . . 24
   Full Copyright Statement. . . . . . . . . . . .  . . . . . . . . . 25







Farrell                     Standards Track
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