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聚合签名能够把多个不同用户对不同消息所产生的不同签名聚合成一个签名,大幅度地提高验证的效率.聚合签密不仅能实现聚合,同时还提供机密性与认证性.本文利用双线性对构造了一个新的基于身份的聚合签密方案,并基于BDH和CDH问题,证明了方案的机密性和不可伪造性.此外,方案还满足可公开验证性,与同类方案相比具有更高的安全性,且运算量更小,效率更高.
Aggregation Signature can aggregate different signatures generated by different users into different signatures, which can greatly improve the efficiency of verification.Poly Signature Signature can not only achieve aggregation, but also provide confidentiality and authentication.In this paper, Sex pairs to construct a new identity-based aggregation and signcryption scheme, and proves the scheme’s confidentiality and unforgeability based on the BDH and CDH problems.In addition, the scheme also satisfies the public verifiability and has more advantages compared with similar schemes High security, less computation, more efficient.