一种基于身份加密的可验证秘密共享方案

An ID Based Verifiable Secret Sharing Scheme

提出了一种使用IBE公钥算法实现的可验证秘密共享方案.该方案中秘密分发者将IBE私钥作为共享秘密在接入结构中分发,任何参与者可以通过公开的验证信息验证影子秘密的正确性.随后在随机预言模型中证明了所提方案的语义安全性.理论分析和仿真实验表明,方案可以有效检测来自内外部攻击者的欺骗攻击,并具有较低的时间复杂度和通信开销.

A verifiable secret sharing scheme based IBE is proposed.In the scheme,the shared secret is the private key which extracted by IBE algorithm and every participator can verify the shares conveniently by the public information.A formal proof of semantic security of the scheme is provided in the random oracle model.The theoretical analysis indicates that the scheme can detect cheatings from both inside and outside attacker.The simulation results demonstrate that the proposed scheme has remarkable performance in both computation and communication cost.