the documents encrypted driver source

从一个随机文件读取256字节数据形成数据区DArea，再应用洗牌法所给的方法生成0~255的一个全排列DTab。试分别写出"求DArea中全部数据经 （1）以DTab为S-盒； （2）以DTab为P置换 -from a random file read 256 byte data area DArea form data, re-shuffling in law application to the formation of 0 ~ 255 DTab a full array. Try to write were "seeking DArea by which all data (1) DTab S-boxes; (2) DTab replacement for the P

cox方法展频水印matlab源码，对bitmap图像隐藏信息-frequency watermarking method Show Matlab source of bitmap images for hidden messages

.rar中包括两个文件MD5.cpp和MD5.h，在MD5的基础上改进让其支持Unicode的宽字符，可以对CString进行32位的加密，使用vs2010进行测试过，在解决方案“头文件”“源文件”分别使用添加“已有项”，将.h和.cpp文件加入工程，可能会有两三个警告，但不影响程序运行

密码学实验 SDES-cryptography experiments SDES

希尔排序算法: 基本思想：将整个无序序列分割成若干小的子序列分别进行插入排序。 序列分割方法：将相隔某个增量h的元素构成一个子序列。在排序过程中，逐次减小这个增量，最后当h减到1时，进行一次插入排序，排序就完成。增量序列一般采用：ht=2t-1,1≤t≤[log2n]，其中n为待排序序列的长度。-Hill sorting algorithm: the basic idea: the whole sequence disorder is separated into a number of small sub-sequences respectively Insertion Sort. Sequence segmentation method: h will be separated by an incremental elements constitute a subset of sequences. In the sort process, the successive decrease of the increment, and finally reduced to one when h when an insertion sort, sort completed. Incremental sequence generally use: ht = 2t-1, 1 ≤ t ≤ [log2n], in which n is the length of sequence to be sorted.

使用的是BCB5开发的一个简单的3DES的DEMO，对文件采用的是密文挪用来处理短块。-Using BCB5 developed a simple 3DES of DEMO, the document is used ciphertext diverted to deal with the short block.

RSA的加密代码，含MFC界面，功能强大，可支持任意长度密钥。-RSA" s encryption code with MFC interface, powerful, can support an arbitrary length of the key.

电子注册方式加密算法-Encrypting algorithm of electric register method

md5算法的java实现-md5 algorithm java realizes

C++ implementaion for RSA together with the Wiener attack. It uses NTL library for big numbers