Playfair源代码是很简单的，随着网络的现有的版本是不同的…

这一个16位的CRC校验的源码，源码也已经很详细的注释过了-This is a 16-bit CRC checksum of the source code, source code also has very detailed notes after a

pkcs#11 header files

Lock Manage 是一个功能比较全面的加密软件。 它具有多种加密方案：如文件口令加密，文件反拷贝加密，软硬盘加密，安装加密，文本加密，批处理加密等等。系统是由Ｃ和汇编写成，可从外部链接于主模块。可单独编译，单独调试。可执行ＥＸＥ／ＣＯＭ程序加密模块已经过长时间的测试分析，其工作性能己十分稳定。可移植性与兼容性很好。另外，代码实现了ＣＳ，ＤＳ不换技术，使其ＳＨＥＬＬ性能难以被ＤＥＢＵＧ识别。其内部密码采用单向不可逆变换，基本实现了不可解，原因在于四个随机密钥只能用穷举法找出。这种可靠原四密钥单向加密技术渗透到了后面的几个程序中。对于反拷贝加密，采用了随机的软指纹生成技术，可生成唯一密钥母盘。硬盘反拷贝在硬盘里产生四密钥，在非母机上程序运行错误。反反汇编可将整个文件的内容加密变换。反跟踪采用了目前十余种通用的反跟踪算法。可抵抗ＤＥＢＵＧ系列软件。批处理和文本加密十分方便，但保密性不太强，只能用于一般用户。-Lock function is a more comprehensive encryption software. It has a wide variety of encryption programs : documents such as password encryption, anti-copy document encryption, hard disk encryption software, the installation of encryption, encrypted text, etc. batch encryption. C system is written and compiled, from the external links in the main module. Separately compiler, debugger alone. EXE executable/COM procedures encryption module has been tested over a long period of analysis, their performance has very stable. Good portability and compatibility. In addition, the implementatio

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

打开System进程,复制文件句柄(在关机前有效) 使用OLE控件(用于拖放)等 含有VB无法捕获的错误处理(弹窗后退出) 支持命令行(你可以尝试把程序加入开机启动项) 注:误操作锁定文件(夹)后可以用Unlocker解锁;分类不知道选啥

DES加密算法的C＋＋实现-DES encryption algorithm in C++

 What is EAQUAL?     The intention of EAQUAL is to provide a objective quality measure for coded/ decoded audio      files. Currently the code is based on the ITU-R recommendation BS.1387.      EAQUAL will not supersede listening tests, but can be a useful tool to support listening tests,      categorize different coding algorithms and find bugs in algorithms. The more input files are      taken for the analysis, the better the results of EAQUAL will fit the reality.

frey map混沌随机序列的MATLAB产生源程序-frey map chaotic random sequences generated source MATLAB -frey map chaotic random sequence of MATLAB generated source-frey map chaotic random sequences generated source MATLAB

一个完整的des演示程序 ，在linux下编译通过-Des a complete demonstration of the procedures adopted in the compiler under linux

信息安全课程的实验，含AES、DES、RSA三个加密算法和MD5、SHA-1两个哈希算法的C/C++源代码，可以加密字符串和文件。开发环境为VS，有完整的工程文件及代码，欢迎下载。