1 Scope
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.
It provides
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— a general description of an anonymous digital signature mechanism using a group public key, and
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— a variety of mechanisms that provide such anonymous digital signatures.
For each mechanism, this part of ISO/IEC 20008 specifies
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— the process for generating group member signature keys and a group public key,
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— the process for producing signatures,
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— the process for verifying signatures,
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— the process for opening signatures (if the mechanism supports opening),
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— the process for linking signatures (if the mechanism supports linking), and
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— the process for revoking group members.