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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.它有两个特点,一个是签名中的承诺值只有预定的接收者才能算出,从而又可将该承诺值用作对称加密的密钥,取得一举两得之功效;另一个是用签名中恢复出的消息与对称解密得到的消息相比较,实现消息有效性的验证,改变了传统上使用Hash函数或Redundancy函数的验证方法.因此本文提出的新方案是一类不使用Hash函数和Re-dundancy函数的认证加密方案,
In this paper, a new type of authentication and encryption scheme is proposed, and for the first time this kind of scheme combines message recoverable signature and symmetric encryption.It has two characteristics: one is that the promised value in the signature can only be calculated by a predetermined receiver, The value of the promise as a symmetric encryption key, get double benefit; the other is to recover the signature with the symmetric decryption of the message obtained compared to achieve the message validation of the validity of the change using the traditional Hash function Or Redundancy function verification method.Therefore, the new scheme proposed in this paper is a type of authentication encryption scheme that does not use Hash function and Re-dundancy function,