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CSA ISO/IEC 20008-2:21
Information technology — Security techniques — Anonymous digital signatures — Part 2: Mechanisms using a group public key (Adopted ISO/IEC 20008-2:2013, first edition, 2013-11-15, including amendment 1:2021)
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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 SCC Mirror Committee (SMC) 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.
For brevity, this Standard will be referred to as CSA ISO/IEC 20008-2 throughout.
The International Standard was reviewed by the CSA TCIT under the jurisdiction of the CSA Strategic Steering Committee on Information and Communications Technology and deemed acceptable for use in Canada. This Standard has been formally approved, without modification, by the Technical Committee and 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.
This part of ISO/IEC 20008 specifies anonymous digital signature mechanisms, in which a verifier makes use of a group public key to verify a digital signature.
— a general description of an anonymous digital signature mechanism using a group public key, and
— a variety of mechanisms that provide such anonymous digital
For each mechanism, this part of ISO/IEC 20008 specifies
— the process for generating group member signature keys and a group public key,
— the process for producing signatures,
— the process for verifying signatures,
— the process for opening signatures (if the mechanism supports opening),
— the process for linking signatures (if the mechanism supports linking), and
— the process for revoking group members.