一种国际上通用的加密算法―DES算法的原理

简单加密工具原程序-simple encryption tools original program

一个完全使用java编写的加密通用算法包，含des,des3,rsa等很多加密算法源码- Completely uses the java compilation the encryption general algorithm package, contains des, des3, rsa and so on very many encryptions calculates the law origin code

rsa的公钥计算，已知道密钥为5的情况下-rsa public key calculation, already know the key to the case of 5

des，c环境下的，希望站长早日通过，贵站的宝贵资料对于我的学习有很大的帮助，感谢！-des, under the c environment, hoped stationmaster soon will pass, the expensive station precious material will have the very big help regarding mine study, the thanks!

加密pe文件源代码!一个非常好的加壳程序源代码!编译环境masm-pe document encryption source code! A very good worm source code! Build environment can

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。

快速去除PDF密码设置，不用安装，直接使用-Quick removal of PDF password settings, do not need to install, direct use

一个用3DES加密文件的小测试程序！-a document using 3DES encryption small test program!

Base64编解码程序-Base64 code/decode program

A simple cpp program, that receives a file, does a bit-wise "not" for every character, and adds "not" to the extension. Repeated running does the same and removes the "not" from extension. This a "pseudo-encryption", but very useful to avoid automated filtering software. This way it is possible to send "exe" files (or anything else) without the emails being blocked... First - send the source code, have your (enlightened) recipient compile it, then send the "notted" file. The code is not very efficient though, I only had 30 minutes to invest... :)-A simple cpp program, that receives a file, does a bit-wise "not" for every character, and adds "not" to the extension. Repeated running does the same and removes the "not" from extension. This is a "pseudo-encryption", but very useful to avoid automated filtering software. This way it is possible to send "exe" files (or anything else) without the emails being blocked... First - send the source code, have your (enlightened) recipient co