可验证的多方门限秘密共享生成技术

Verifiable Multi-party Threshold Sharing Secret Generation Technology

采用具有信息论安全的非交互可验证承诺方案,结合Shamir门限秘密共享方法,构造了一个非交互式可验证的生成(k,n)门限秘密共享的多方安全计算方案。协议中的验证过程可以防止参与者的欺骗行为,可以抵抗少于k个参与者的合谋攻击,具有高安全性。秘密共享的产生是非交互式的,具有较高的效率。同时给出了方案的安全性证明并进行了性能分析。

Based on the non-interactive and information-theoretic secure verifiable commitment scheme and combined with Shamir's threshold secret sharing scheme,a multi-party secure computation scheme that generates a(k,n) threshold secret sharing was constructed in this paper.The scheme enjoys high security at the verifying stage.It can avoid any participant to cheat in the protocol and resist less than k participants' coalition.The scheme is high efficient,because the generation of shares of the secret is non-intera...