UC知道200字左右中译英(急)!
来源：百度知道 编辑：UC知道 时间：2024/05/29 01:48:41
摘要:本文以加密与解密的作用开始说出加密的理由并由自己编写的一个小程序开始依次写了加密的历史,加密的概念.这些都只是了了几笔带过,接下来具体讲了第一代加密算法,基于密钥的加密算法,和一种新型加密算法.第一代加密算法围绕的中心就是置换表,包括一个置换表和多个置换表的使用.基于密钥的加密算法的中心就是公钥与私钥.围绕它们介绍了几种加密与解密算法.新型加密算法的特点就是使用一系列的数字(比如说128位密钥),来产生一个可重复的但高度随机化的伪随机数字的序列,这样保密强度大大增加.
summy:This chapter is to say the use of encrypition and decrypt then change the history of encryption and encryption concept by a small program of my own compile.All this is simply to describe .then tell the first encryption mathmatical in detail,the encryption mathematical based on the key and a new type of encryption mathematical.The replacement tale is the circle of the first encryption mathematical,include the usable of a replacement table and many replacement.The circle is public and private key which based on the key's encryption mathematical,introduced several
encryption and decrypt mathematical arround them.The new encryption
mathematical's feature is use a series of digital (for example 128bit key)to produce a repeartable and high random sequence of false random digital,so the strengh will be increase greatly.