CSA ISO/IEC 18014-1:09 (R2019)

CSA Preface Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT),Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T). This Standard supersedes CAN/CSA-ISO/IEC 18014-1-04 (adoption of ISO/IEC 18014-1:2002). At the time of publication, ISO/IEC 18014-1:2008 is available from ISO and IEC in English only. CSA will publish the French version when it becomes available from ISO and IEC. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. Scope This part of ISO/IEC 18014: - identifies the objective of a time-stamping authority; - describes a general model on which time-stamping services are based; - defines time-stamping services; - defines the basic protocols between the involved entities.

CSA Preface Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT),Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T). This Standard supersedes CAN/CSA-ISO/IEC 18014-1-04 (adoption of ISO/IEC 18014-1:2002). At the time of publication, ISO/IEC 18014-1:2008 is available from ISO and IEC in English only. CSA will publish the French version when it becomes available from ISO and IEC. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. Scope This part of ISO/IEC 18014: - identifies the objective of a time-stamping authority; - describes a general model on which time-stamping services are based; - defines time-stamping services; - defines the basic protocols between the involved entities.