I-D ACTION:draft-ietf-pkix-time-stamp-07.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 Time Stamp 
                          Protocols (TSP)
	Author(s)	: C. Adams,  P. Cain, D. Pinkas, R. Zuccherato
	Filename	: draft-ietf-pkix-time-stamp-07.txt
	Pages		: 21
	Date		: 26-Apr-00
	
A time stamping service allows to prove that a datum existed before 
a particular time and can be used by a Trusted Third Party (TTP) as 
one component in building reliable non-repudiation services (see 
[ISONR]). This document describes the format of a request sent to a 
Time Stamping Authority (TSA) and of the response that is returned.
An example of how to prove that a digital signature was generated 
during the validity period of a public key certificate is given 
in an annex.

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