@techreport{ietf-pkix-ipki5tsp-00, number = {draft-ietf-pkix-ipki5tsp-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-pkix-ipki5tsp/00/}, author = {Dr. Carlisle Adams and Denis Pinkas and Patrick Cain and Robert Zuccherato}, title = {{Internet Public Key Infrastructure Part V: Time Stamp Protocols}}, pagetotal = 6, year = 1997, month = jul, day = 30, abstract = {This document describes the format of the data returned by a Time Stamp Authority and the protocols to be used when communicating with it. The time stamping service can be used as a Trusted Third Party (TTP) as one component in building reliable non-repudiation services (see {[}ISONR{]}). We also give an example of how to place a signature at a particular point in time, from which the appropriate CRLs may be checked.}, }