大整数运算的实现

RC4加密源代码，用C++编写，全套源代码，很齐全，测试过没有任何问题放心使用-RC4 encryption source code, using C++ Prepared a full set of source code, it is complete, tested ease of use there is no problem

用des算法加密文件的小程序，里面带有des算法和加密的程序，用vc编写-encryption algorithm used des documents small program with inside des encryption algorithm and the procedures used to prepare vc

sspi_workbench

RSA加密算法的实现 2^1024大的素数实现-implement the RSA

RegistTimes RegistDays时间限制控制控件。(有源代码）工作在：D2 D3 D4 D5。作者：Mats Asplund。-RegistTimes RegistDays controls time limit control. (Source code) in: D2 D3 D4 D5. Author: Mats Asplund.

Lock Manage 是一个功能比较全面的加密软件。 它具有多种加密方案：如文件口令加密，文件反拷贝加密，软硬盘加密，安装加密，文本加密，批处理加密等等。系统是由Ｃ和汇编写成，可从外部链接于主模块。可单独编译，单独调试。可执行ＥＸＥ／ＣＯＭ程序加密模块已经过长时间的测试分析，其工作性能己十分稳定。可移植性与兼容性很好。另外，代码实现了ＣＳ，ＤＳ不换技术，使其ＳＨＥＬＬ性能难以被ＤＥＢＵＧ识别。其内部密码采用单向不可逆变换，基本实现了不可解，原因在于四个随机密钥只能用穷举法找出。这种可靠原四密钥单向加密技术渗透到了后面的几个程序中。对于反拷贝加密，采用了随机的软指纹生成技术，可生成唯一密钥母盘。硬盘反拷贝在硬盘里产生四密钥，在非母机上程序运行错误。反反汇编可将整个文件的内容加密变换。反跟踪采用了目前十余种通用的反跟踪算法。可抵抗ＤＥＢＵＧ系列软件。批处理和文本加密十分方便，但保密性不太强，只能用于一般用户。-Lock function is a more comprehensive encryption software. It has a wide variety of encryption programs : documents such as password encryption, anti-copy document encryption, hard disk encryption software, the installation of encryption, encrypted text, etc. batch encryption. C system is written and compiled, from the external links in the main module. Separately compiler, debugger alone. EXE executable/COM procedures encryption module has been tested over a long period of analysis, their performance has very stable. Good portability and compatibility. In addition, the implementatio

一个很好的MD5 VC类， 欢迎大家使用-MD5 VC a good class, everyone welcomes the use of

各种加密算法合集，是研究加密算法最好的资料。-A variety of encryption algorithms Collection, is to study the best data encryption algorithm.

实现本机加密-The realization of the local encryption

文件加密压缩解压缩系统-file encryption compression decompression system