@techreport{adams-dcs-00, number = {draft-adams-dcs-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-adams-dcs/00/}, author = {Dr. Carlisle Adams and Robert Zuccherato}, title = {{Data Certification Server Protocols}}, pagetotal = 14, year = 1998, month = jun, day = 5, abstract = {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. The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'MAY', and 'OPTIONAL' in this document are to be interpreted as described in RFC 2119 {[}RFC2119{]}.}, }