An identity-based multisignature scheme from the Weil pairing

An identity-based multisignature scheme is proposed using the bilinear property of the Weil pairing defined on elliptic curves and Euler´s criterion. In the scheme, each signer is only responsible for the signing of a particular section of the message, and then the signature is sent to the system administrato, a multisignature of the message is signed finally; the multisignature can be verified by the corresponding public key and partial contents of the message without revealing the whole message. The multisignature size is only about a quarter of the Guillou-Quisquater signature. The management and storage spending of the public key certificate could be efficiently diminished using this scheme.