I-D ACTION:draft-ietf-pkix-dcs-01.txt

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This draft is a work item of the Public-Key Infrastructure (X.509) Working Group of the IETF.

	Title		: Internet X.509 Public Key Infrastructure Data 
                          Certification Server Protocols
	Author(s)	: C. Adams, P. Sylvester,  R. Zuccherato
	Filename	: draft-ietf-pkix-dcs-01.txt
	Pages		: 23
	Date		: 12-Jul-99
	
This document describes a general data certification service and the
protocols to be used when communicating with it.  The Data
Certification Server  is a Trusted Third Party (TTP) that can be used
as one component in building reliable non-repudiation services (see
[ISONR]).  Useful Data Certification Server responsibilities in a PKI
are to validate signatures and to provide up-to-date information
regarding the status of public key certificates.

   We give examples of how to use the Data Certification Server to
   extend the lifetime of a signature beyond key expiry or revocation
   and to query the Data Certification Server regarding the status of a
   public key certificate.

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