Abstract:To meet the application requirement of proxy blind sign

a new certificateless proxy blind signature scheme based on paring was presented.Through the pre-calculation of the parameter which is published as one of the system parameters

the new scheme does not require any pairing computation in the sign step.The comparison with other schemes in the literature showed that it is more efficient has advantages in practical application.The scheme was proved to be existentially unforgeable against Type Ⅰ or Type Ⅱ adaptively chosen message and identity adversaries in random oracle model

under the bilinear Diffie-Hellman assumption.