Ring Signature from Bonsai Tree: How to Preserve the Long-Term Anonymity. (arXiv:2305.16135v2 [cs.CR] UPDATED)

Signer-anonymity is the central feature of ring signatures, which enable a
user to sign messages on behalf of an arbitrary set of users, called the ring,
without revealing exactly which member of the ring actually generated the
signature. Strong and long-term signer-anonymity is a reassuring guarantee for
users who are hesitant to leak a secret, especially if the consequences of
identification are dire in certain scenarios such as whistleblowing. The notion
of \textit{unconditional anonymity}, which protects signer-anonymity even
against an …

anonymity called enable generated guarantee messages ring sign signature signatures