一个简单的数字签名算法的实现，能进行简单的文件签名和传送...

des数据加密标准算法描述-des data encryption standard algorithm description

PE程序加密壳源程序 -PE procedure encryption shell source program

基于VC6的MD5加密源码,短小精干，利于交流学习。-MD5 encryption source code, the short crack, and conducive to the exchange of learning.

一个实现文件加密的源码- A realization document encryption source code

绝好的文件分割器.-excellent paper dividers.

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.

Cryptography and Network Security, 4th Ed.-Stallings ebook. free to download

CRC 加密算法，Visual Basic的源代码-CRC encryption algorithm in the Visual Basic

应用背景在这篇文章中，我将介绍一个简单的源代码，让您的数字签名PDF文档和修改它的元数据。我会用优秀的 自由港；iText  ；图书馆：itextsharp，可以下载 ；这里。你需要2008个视觉工作室能够打开和建设该项目。关键技术itextsharp提供了很多有趣的功能，创建和操纵PDF文件，但在这篇文章中，我们将只使用数字签名功能。我也会用一些功能来操作# PKCS 12证书。你唯一需要知道的是，我们的数字签名将使用从蛋白提取私钥# 12证书。

安装时修改执行文件记录硬件配置参数从而做唯一安装标志防止非法复制- Installs when revises the execution file recording hardware disposition parameter thus to do only installs the symbol to prevent illegal duplicates