An ID-Based Blind Multisignature Scheme

This paper presents an identity-based blind multisignature from bilinear pairings with the idea of broadcasting multi-signature. The scheme uses identity-based public key instead of digital certification public key. It can omit the process of getting the public key from the system in verifying phase, which improves efficiency of the system and reduces the storage space. We analyze correctness, undeniability and unforgeability of the proposed scheme. The scheme has both the blind signature´s anonymity and the multi-signature´s characteristics. It could be applied in electronic cash and electronic election.