新的强指定多个验证者签名方案

Strong Multi-Designated Verifiers Signature Scheme

基于Chameleon哈希和D.Boneh的多方密钥协商方案,提出了1个新的强指定多个验证者签名方案.该方案中,只有签名者指定的n个验证者可以各自独立地验证签名,并且即使其中某个指定验证者将自己的秘密值泄露,其他任何人也无法验证签名的真伪.分析表明,新方案满足不可转发性、不可伪造性以及签名者身份保密的性质,并且具有较高的效率.

Based on Chameleon Hash and D. Boneh＇s one round multi-party key agreement protocol, a multi-designated verifiers signature scheme was proposed. The signature can be verified independently by each of the n designated verifiers designated by the signer and no one else than the designated per- son can be convinced by this signature even if one of the designated verifiers reveals the secret value. The security analysis of the proposed scheme shows that it satisfies non-transferability, unforgeability, privacy of signer＇s identity and with low computational cost.