sha

设f(x)=1+x+x2+x5+x27，试分别写出实现下列移位寄存器的程序： 以f(x)为联接多项式的DSR； 以f(x)为联接多项式的LFSR。 可供选择的联接多项式： f1(x)=1+x+x4+x6+x30； f2(x)=1+ x3+ x31； f3(x)=1+ x6+ x31； f4(x)=1+ x7+ x31； f5(x)=1+ x13+ x31； -Let f (x) = 1 x x2 x5 x27, respectively try to write the following Shift Register : f (x) connected to the DSR polynomial; f (x) for connectivity polynomial LFSR. Connection options polynomial : f (x) = 1 x x4 x6 x30; F2 (x) = 1 x3 x31; f3 (x) = 1 x6 x31; f4 (x) = 1 x11 x31; f5 (x) = 1 x13 x31;

用C++写的Serv-U的加密算法，很有参考价值-C wrote Serv-U encryption algorithm, great reference value

HAMMING ECC，1 BIT ERROR CORRECTION， 2 BITS ERROR DETECTION -HAMMING ECC，1 BIT ERROR CORRECTION， 2 BITS ERROR DETECTION

简单的文件加密程序，希望站长保留，一些小课程设计可以用-Simple file encryption program, owners want to retain some small curriculum design can be

rsa算法实现，用的是c++。欢迎大家随便下载-rsa algorithm, using c++. Welcome to the casual download

PB使用MD5加密,可以有效解决PB开发中登录密码使用明文的问题-PB using MD5 encryption, can effectively resolve the PB Password development issue of the use of explicit

这是用java实现单向加密和非对称加密DSA数字签名的源程序-This source code is an implementation of one-way encryption and unbalanced DSA digital signature on java platform.

Vigenere实验-Vigenere

一个利用C语言来实现加密算法之DES算法的源码。-A source program of DES arithmetic using C .

这是一个好用的MD5的C++类；这个类可以加在控制台 程序中也可用在MFC中， 并且提供了详细的错误处理 函数，是一个安全的类。例程是一个MD5的MFC程序， 支持字符串和文件两种输入-This is an easy to use the MD5 of the C++ category this category can be added to the console program can also be used in the MFC and to provide a detailed error handling function, is a type of security. MD5 is a routine procedure of MFC, and documentation to support two types of input string