基于DLP的自认证签密方案探讨

文章基于离散对数提出一种新的自认证签密方案，在有限域上离散对数问题的困难性假设下，新构造的方案被证明是安全的.该方案还具有保密性、不可伪造性、公开验证性、不可否认性和前向安全性等安全属性.本方案消除了证书管理和秘钥托管的安全问题且效率较高，易于实现.

Self-certified signcryption scheme based on DLP

In this paper, the author presented a new self-certified signcryption scheme based on the discrete logarithm problem, and the security analysis of the proposed scheme in the implementation plan with the random oracle model is presented in this paper. The proposed scheme has the security properties of confidentiality, non-forgeability, publicly verifiability, nonrepudiation and perfect forward security, etc. The scheme overcomes certificate management problem and key escrow problem. Moreover, it has high efficiency and is convenient to implement.