ISO/IEC 20008-3:2024

Information security — Anonymous digital signatures — Part 3: Mechanisms using multiple public keys

Scope

This document specifies anonymous digital signature mechanisms in which a verifier uses multiple public keys to verify a digital signature.
This document provides:
—     a general description of an anonymous digital signature mechanism using multiple public keys;
—     a variety of mechanisms that provide such anonymous digital signatures.
For each mechanism, this document specifies the process for:
—     generating the private key and public key of each user;
—     producing signatures;
—     verifying signatures;
—     linking signatures (if the mechanism supports linking);
—     tracing signatures (if the mechanism supports tracing);
—     producing signatures with threshold capability (if the mechanism supports a threshold capability);
—     verifying signatures with threshold capability (if the mechanism supports a threshold capability).
This document does not define the implementation of a public key infrastructure (PKI) and the means for distinct entities to exchange, extract and verify their respective public key certificates.