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在Abdalla-Reyzin的前向安全签名方案的基础上,通过引入单向散列链机制,提出了一个强前向安全的数字签名方案,攻击者即使在第i时段入侵系统,也无法伪造以前或以后时段的签名,方案的安全性基于在Z*N上计算平方根的困难性和散列函数的单向性。
Based on Abdalla-Reyzin’s forward secure signature scheme, a strong forward-secure digital signature scheme is proposed by introducing a one-way hash chain mechanism. Even if an attacker invades the system during the first period, it can not forge the previous or The signature of the later period, the security of the scheme is based on the difficulty of computing the square root on Z * N and the unidirectionality of the hash function.