一个通过控制系统时间来达到限制软件使用期限的算法程序

KEELOQ_ENcode　简单的加密程序，可惜就是没有源代码。-KEELOQ_ENcode simple encryption program, but is not the source code.

一个非常好的ASE代码，通过实验证明能编译通过-A perfect AES program code, and it can be run after translation and edition.

标准C++书写的BlowFish加密算法，和加密文件演示，速度较快-written in standard C BlowFish encryption algorithm, and encryption paper presentations, faster

文件验证，利用MD5算法做文件的HASH，得到统一结果判断文件内容的一致性-File Hash

个人整理的CRC的一些简单基本资料,里面还附带CRC的算法实现(C语言),对新手来说,是一份不错的资料-Personal order of CRC s some simple basic information, which also comes with CRC s algorithm (C language), on the novice, is a good information

DCPcrypt Cryptographic Component Library

字节取反-Take anti-byte

title=Windows NT/2000/XP 虚拟磁盘驱动程序 memo=将一个或多个文件模拟成物理磁盘。-title=Windows NT/2000/XP simulated disk drive memo=let one or more file simulate a physical disk

这个是MD5算法C的源代码，希望对大家有用-This is the MD5 algorithm C source code, in the hope that useful to everybody

libGringotts是一个小型、易于使用的、完全线程的C语言库，最初为Gringotts开发。它的目的是将数据封闭在一个加密和压缩的文件中。它使用加密算法（(RIJNDAEL 128/256, SERPENT, TWOFISH, CAST256, SAFER+, LOKI97, 用于加密的3DES, 以及哈希函数的SHA1和 RIPEMD-160)来确保数据尽可能安全，并允许用户对所有使用的加密、哈希函数和压缩算法有完全的控制。 -libGringotts is small, is easy to use, the entire line regulation C language storehouse, at first is the Gringotts development. Its goal is the data seal in an encryption and in the compression document. It uses the encryption algorithm ((RIJNDAEL 12.8/256, million SERPENT, TWOFISH, CAST256, SAFER, LOKI97, uses in 3DES which encrypts, as well as Hasche function SHA1 and RIPEMD-160) guarantee the data to be as far as possible safe, and the permission user to all uses encryption, the Hasche function and the compression algorithm has the complete control.