数据隐藏程序，更不是安全的秘密

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

这是用C编写的文件合并与分割的源代码，还请各位指教。-This is the document prepared by C combined with the partition of the source code, also called upon to advise.

RSA算法介绍-RSA algorithm introduced

DES的实现，平时上课的实验，供大家参考。-DES implementation, usually in class experiments, for your reference.

RSA密聊，用于网络上实现公锁和私锁的算法。-RSA secret chat for the network to achieve public and private lock lock algorithms.

置换代换密码体制的S-P盒的发生器，能随机产生S盒和P盒，用于置换代换密码体制的加密解密-replacement substitution Cryptosystem S-P boxes of generators, can generate random boxes S and P boxes for the replacement substitution Cryptosystem encryption and decryption

RC4伪随机流加密算法，VC++编写，调试通过。控制台界面。-Pseudo-random RC4 stream encryption algorithm, VC++ development, debugging through. Console interface.

Base64编码与解码，MD5加密源码 DEMO-Base64 encoding and decoding, MD5 encryption source DEMO

rc5-cts 模式的实现源码,与RFC中的实有所不同-RC5- ctc-source model of achievement, and the RFC is different

生成大素数并检验以及生成RSA1024位公钥子程序，不使用库文件，源代码公开，清晰有注释-Generate large prime numbers and testing, and to generate RSA1024-bit public key subroutine, do not use library files, source code is open, clear and annotated