美国加密中心公布的DES程序

des算法的一种升级算法-an update algorithm

standart Des 3Des soruce code

--- -----md5--- --- ---属于200种加密算法的一种------------ md5--------------- encryption algorithm 200 is a

自己写的一个Vigenere加密算法．不用多说了吧，值得收藏，特别是对于初学者．-I have written a Vigenere encryption program by myself.Out of question,it is worth to be collection especially by the beginner.

椭圆曲线密码C实现的，可以在++6.0下编译通过。希望对大家有帮助！-Elliptic Curve Cryptography C achieved in++ 6.0 compiler passed under. Would like to help everyone!

This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.-This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

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;

ssl implementation（delphi）-ssl implementation (delphi)

这个是简单的用vb编程编的分解质因数的程序和已经编译了的exe文件-This is a simple program with vb series of the quality factor of the decomposition process and is compiled by the exe files

一个比较简单的加密程序-a relatively simple encryption program