本文设计了两种具有消息恢复的数字签名方案，其安全性都是基于因子分解问题和离散对数问题的。
In this paper, two schemes for digital signature with message recovery are presented. The security of these schemes is based on factorization and discrete logarithms.
本文提出了一类新的认证加密方案，这类方案首次将消息可恢复签名和对称加密有机结合。
A new type of authenticated encryption schemes is proposed. It first combines signature with message recovery schemes and symmetric encryption schemes together.
本文设计一种新的具备消息自动恢复特性的数字签名方案，这种方案的安全性同时建立在因子分解和离散对数之上，并对这种方案进行了安全性分析。
In this paper, we present a new signature scheme with message recovery and the security of the scheme is based on both factorization and discrete logarithms.
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