MD5加密算法，有个 getMD5() 方法可以传入字符串并生成一个 MD5 码。...

base64解码 -base64 decoding base64 decoding

用于android jni的c语言版 3des算法  

根据JPEG2000格式的特性，改变在其算术编码时采用的概率状态迁移表可达到加密图像的效果-According to the characteristics of JPEG2000 format change in its arithmetic coding used in the probability of state migration table can achieve the effect of encrypted image

CRC循环冗余检测，CRC32的一个检测实例-CRC cyclic redundancy test, CRC32 instance of a test

这是一个使用MD5算法对字符串进行加密的小程序-MD5 algorithm used to encrypt string of small programs

two fish 加密的源代码,用c编写的.希望对大家有用-two fish encryption source code, using c prepared. hope everyone useful

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.

用来替换动态链接库的相互引用关系，去掉强签名请求。

使用C编写的DES, DESX, DES3(三层DES) 的加密算法, 本程序演示如何在Delphi中进行调用C编写的算法 DES 密匙长度 8 DESX 密匙长度 16 DES3 密匙长度 24 (加密强度高了很多)-C prepared by the use of DES, DESX, DES3 (three-DES) encryption algorithm, the program demonstrates how to call in Delphi in the preparation of the algorithm C key length DES key 8 DESX length 16 DES3 key length 24 (high strength encryption a lot)

凯撒和维吉尼亚加密方法，两种算法都不是很复杂，基本原理也相似所以都写入一个文件中来表示。-Caesar and Virginia encryption method, two algorithms are not very complicated, so the basic principles are also similar to a document written to express.