基于双线性对的秘密重分配方案

Secret redistribution scheme based on bilinear pairing

现有的秘密重分配方案只考虑了秘密分发者的不可信性,并没有考虑接收者的不可信性,而且这些方案都是基于RSA或者离散对数密码体制的.本文提出一个基于双线性对的秘密重分配方案,假设秘密的分发者和接收者都存在不诚实成员,使用可验证秘密共享技术,不仅能验证影子和子影子的正确性,而且能鉴别不诚实的秘密分发者和接收者,并证明该方案是正确的、鲁棒的和安全的.

Existing secret redistribution schemes start from the assumption that only secret senders but no receivers are dishonest. And the schemes are based on either RSA or discrete logarithm encryption. In this paper we propose a secret redistribution scheme based on bilinear pairing and assume that there are dishonest players among secret senders and receivers. The verifiable secret sharing in this scheme can not only verify the correctness of secret shares and sub-shares, but also identify the bad shareholders and had secret receivers. The correctness, robustness and security of the scheme are proved.