A new identity-based proxy blind signature scheme

Utilizing the identity-based signature scheme which introduced by Shim, a new identity-based proxy blind signature scheme is proposed. By analyzing the new scheme, we point out that it satisfies unforgeability, non-repudiation, blindness, unlinkability and other security requirements of proxy blind signatures. Compared with other identity-based proxy blind signature schemes, the proposed scheme has better computational efficiency and less traffic.