A Proxy Ring Signature Scheme with Revocable Anonymity from Bilinear Pairings

Proxy ring signature scheme with revocable anonymity allows the original signer to know exactly who the signer is and the original signer doesn´t need to publish extra information except his original public key. Based on bilinear pairings, a new ring signature scheme with revocable anonymity was proposed. Through cryptanalysis, this scheme satisfies unforgeability, unconditional anonymity for attackers except original signer and revocable anonymity for original signer.