用于GSM加密的A5算法实现

DES 加密系统的 C 语言源代码，实现了简单的DES加密系统。-DES Encryption System C language source code, a simple realization DES encryption system.

关于NSEA算法的一个小程序-NSEA algorithm on a small program

加密数字图像的主要源码 加密数字图像的主要源码-encrypt image

一个周期3的多表代替密码，第1个表由密钥字法产生（密钥字自拟），第2个表由洗牌法产生（注意，字母a~z与数字0~25一一对应），第三个表由公式法产生（数学公式自拟，注意它须是Z26上的一个一一变换）-a cycle of three multi-table instead of passwords, a table by key word method, (key word from the intended), Table No. 2 produced by shuffling method (note, a letter with a number of z ~ 0 ~ 25 he gathers), 3rd tables generated by the formula (from the proposed mathematical formula, it should pay attention to the Z26 is a transformation on January 1)

该源码包括了Java加密组件实现DES、RSA和SHA加密算法 -The Java source code, including encryption components realize the DES, RSA and SHA encryption algorithm

根据自己的加密要求可以修改，MD5加密处理单元。-According to their own requirements can be amended encryption, MD5 encryption processing unit.

MD消息摘要程序，MD5以512位分组来处理输入的信息，且每一分组又被划分为16个32位子分组，经过了一系列的处理后，算法的输出由四个32位分组组成，将这四个32位分组级联后将生成一个128位散列值。-MD news summary procedures, MD5 to 512 groups to deal with the importation of information and each group was divided into 16 groups of 32 seats, after a series of processing, the output from the algorithm four groups composed of 32, these four sub-32 will generate a cascade 128 the hash value.

RSA的程序代码-RSA code

这是一个使用MD5算法对字符串进行加密的小程序-MD5 algorithm used to encrypt string of small programs

与 Cast128 算法二进制兼容的加密算法,64位块加密,加密匙可到128位-Cast128 algorithm and binary-compatible encryption algorithm, 64 block encryption, encryption keys can be 128