BS ISO/IEC 20008-3:2024

Information security. Anonymous digital signatures. Mechanisms using multiple public keys | Status: Current

1 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.