Designated verifier proxy signature scheme with message recovery

摘要

Proxy signature is an active cryptographic research area. In recent years, many proxy signature schemes to suggest improvement and generalization of existing protocols have been proposed. In this paper, we will propose a new designated verifier proxy signature scheme with message recovery. Since the signed message is included in the proxy signature, and only the designated verifier can recover the signed message and verify the signature, compared with other proxy signatures, the proposed scheme not only reduces the communication cost but also satisfies the confidentiality property.