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安装时修改执行文件记录硬件配置参数从而做唯一安装标志防止非法复制- Installs when revises the execution file recording hardware disposition parameter thus to do only installs the symbol to prevent illegal duplicates

安全支持提供器接口（SSPI）源码- Safe support provision connection (SSPI) source code

一种通过判断网卡地址来控制软件使用期限的算法，简单有效。-Address of a card through the control software to determine the use of time algorithms, simple and effective.

简单的加密源程序-simple encryption source

一个用3DES加密文件的小测试程序！-a document using 3DES encryption small test program!

md5算法,采用c++实现的md5_16位实现-md5 algorithm, used to achieve the c-achieving md5_16

著名图论问题之一。邮递员从邮局出发送信，要求对辖区内每条街，都至少通过一次，再回邮局。在此条件下，怎样选择一条最短路线?此问题由中国数学家管梅谷于1960年首先研究并给出算法，故名。-Well-known graph theory problems. Postman deliver a letter from the post office proceed to require every street within the right area, at least through the time, return to post office. Under these conditions, how to select a shortest route? This issue by the Chinese mathematician Mei Gu tube study in 1960, and gives the first algorithm, hence the name.

des加密算法的增强版key的长度比以前多--Enhancement version of DES encryption algorithm in which key is much longer than before

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

IBE基于身份的加密系统的系统叁数程序，使用VC6.0开发-IBE identity-based encryption system of systems Triple the number of procedures, the use of VC6.0 Development