无可信第三方的可验证多重密钥共享方案

提出一个无可信第三方的可验证的向量空间多重密钥共享方案,其安全性依赖于椭圆曲线密码学的安全性.该方案具有如下特点:无须可信第三方的参与,极大地减少了开销;由参与者联合生成共享的主密钥并分发相应的共享份额;可以共享多个主密钥,而每个共享者只须存储一个子密钥;可以有效防止内部成员的欺诈以及外部攻击者的攻击;仅需有限的存储空间和传输带宽,具有实际应用价值.

A verifiable multi-secret sharing scheme without a trusted center

A verifiable vector space multi-secret sharing scheme is proposed.Its security is based on the security of elliptic curve cryptography.This scheme has the following characteristics:there is no trusted center,so the cost can be saved greatly;all the participants cooperate to generate the secrets and distribute the corresponding shares;all participants can share multiple secrets,but each participant just needs to save one sub-key;the cheating between participants and the attack from outsiders can be detected;the current scheme is just needs limited memory and communication bandwidth,so it is valuable in practical applications.