一种可证明安全密码算法的改进

IMPROVING A PROVABLE SECURITY CIPHER

介绍基于对称密码系统的可证明安全理论,利用平方哈希函数实现技术,对一种可证明安全算法DFC实施改进后,安全性没有损失,但是速度得到了提高。

In this paper, based on provable security theory, a provable security cipher DFC is improved on speed without lost of security by means of fast implementation of square hash function.