Anonymity-preserving identity-based multisignature scheme with provision for origin Self-Revelation

This paper describes an identity-based serial multisignature scheme that permits the maintaining of origin signer anonymity coupled with participant self-determination in a signature. It allows the origin signer to remain anonymous so long as it does not revoke its own anonymity by disclosing the proof of origin. The scheme also prevents an adversary from faking as the origin, or adding or deleting other participants into or from the multisignature, and is shown to be secure under the claims presented. Use cases for the scheme are presented to demonstrate the scenarios in which such a scheme is useful.