An Aggregate Signature Scheme with Specified Verifier

We propose a new efficient aggregate signature scheme with specified verifier from bilinear pairings. The characteristic, only the designated verifier can verify the correctness of the signature, prevents the disclosure of the signer’s any relevant information. Compared to the previous scheme with this characteristic, we use a new method and the new scheme requires less one pairing operation. Presumed the difficulty of Computational Diffie-Hellman Problem, the proposed aggregate signature scheme is secure against existential forgery in the random oracle model.