文件加密的过滤驱动程序，适用于大部分的文件加密软件

DES加密算法C语言实现，我以将它成功的移植到Nios处理器上-DES encryption algorithm C language, I would like to be transplanted to the success of the Nios processor

base64的编解码代码封装，很方便易用。-base64 codec code package, it is easy to use.

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

EXELOCK 1.83 EXE文件加密器的源代码-EXELOCK 1.83 EXE file encryption for the source code

MPEG 解码源码　。。 。。 。。慎重-的

这是RSA算法的原代码实现应该直接能用,已调试好-This is the original RSA algorithm implementation code can be used directly, has good debugging

VHDL implementation of the twofish cipher for 128,192 and 256 bit keys. The implementation is in library-like form All needed components up to, including the round/key schedule circuits are implemented, giving the flexibility to be combined in different architectures (iterative, rolled out/pipelined etc). Manual in English is included with more details about how to use the components and/or how to optimize some of them. All testbenches are provided (tables, variable key/text, ECB/CBC monte carlo) for 128, 192 and 256 bit key sizes, along with their respective vector files.-VHDL implementation of the twofish cipher for 128,192 and 256 bit keys. The implementation is in library-like form All needed components up to, including the round/key schedule circuits are implemented, giving the flexibility to be combined in different architectures (iterative, rolled out/pipelined etc). Manual in English is included with more details about how to use the components and/or how to optimize some

idea加密算法源代码-The source code of IDEA encryption algorithm

应用背景基于java的自定义文件加压解压，拥有比普通压缩包密码更方便更保险的加密程度关键技术通过更改了文件数据写入顺序起到加密效果，如果不用相应的解压程序解压的话会使得文件无法读取

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-A system by controlling the time limit is reached, the software algorithm program using the term