利用密码哈希函数的良好性质和DLP的困难性问题，构造了一个可验证可关联的环签名方案。

Making use of the good properties of cryptography Hash functions and the difficulties of DLP, a verifiable and linkable ring signature scheme is constructed.

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网站的目的是证明用简单哈希函数来保护有价值的密码是不安全的，并促使开发人员使用更为安全的方法。

The goal of FreeRainbowTables. com is to prove the insecurity of using simple hash routines to protect valuable passwords, and force developers to use more secure methods.

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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.

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通常设计压缩函数有两种方法：一、利用某些数学工具专为哈希目的而设计一个压缩函数，二、利用现有的密码算法如分组密码来作为压缩函数等。

For the design of a compression function one can either start from scratch and build a function specific for the purpose of hashing or use existing cryptographic building blocks such as block ciphers.

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哈希函数是现代密码系统的基础。

Hash functions are fundamental to modern cryptography.

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哈希函数是现代密码系统的基础。

Hash functions are fundamental to modern cryptography.

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