【摘要】 面向群体的身份认证方案是为了满足系统某些特殊安全性要求而设计的,它有利于防止系统内部管理人员的作弊,并能有效地提高身份认证系统的安全级别和可用性,对增强系统的可生存性也具有一定的价值。利用广义的ElGamal数字签名方案、Shamir秘密共享方案,并结合零知识证明思想,设计了一种面向群体的身份认证方案。该方案可以有效地抵制常见的假冒和串谋等攻击。更多还原

【Abstract】 Group-oriented identity authentication is designed to satisfy some special security demands.It help to prevent the cheat of inner fellows and improve the security level and availability of identity authentication system,as well as strengthening the system sur-vivability.Combined with general ElGamal digital signature,shamir secret sharing and zero-knowledge proof,a group-oriented identity authentication scheme is designed,which can effectively resist familiar personate and conspiracy attack.更多还原