SMHSDVS: A Secure and Mutual Heterogeneous Strong Designated Signature Between PKI and IBC.

The homogeneous strong designated verifier signature scheme cannot meet the requirements of heterogeneous cryptography communication. With the idea of Heterogeneous Signcryption and strong designated verifier signature, we present a securely and mutually heterogeneous strong designated verifier signature (SMHSDVS) scheme between Public Key Infrastructure and Identity-based Cryptography, which has correctness, non-transferability, unforgeability, strongness, source hiding and non-delegatability. In addition, we use the Computational Diffie-Hellman model in oracle to analyze unforgeability and use mechanized tool CryptoVerif to analyze non-transferability. Finally, we evaluate the performance of heterogeneous digital signature scheme by compared with related schemes, and the results show that the proposed scheme is secure and efficient.