Alcance
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.