常用的密码算法，如RSA，MD2，MD5等，还包括简单的例程，很久以前写着玩的...

LINUX下使用Ansi C编写的MD5消息散列算法-LINUX use Ansi C prepared news MD5 hash algorithm

一些重要的加密算法的实现---主要是针对大学密码学课程中的算法实践，例如： 维吉尼亚密码，置换密码，移位密码-Some key encryption algorithm--- mainly aimed at the realization of the University of cryptography algorithms for practical courses, such as: Virginia password, replacement password, password, and so shift

DES( Data Encryption Standard)算法，于1977年得到美国政府的正式许可，是一种用56位密钥来加密64位数据的方法。DES算法以被应用于许多需要安全加密的场合。（如：UNIX的密码算法就是以DES算法为基础的）。-DES (Data Encryption Standard) algorithm, in 1977 the United States government"s official permission, is a key 56 to 64-bit data encryption methods. DES algorithm to be applied to many needs security encryption occasions. (Eg : UNIX password algorithm is to DES algorithm-based).

SHA 256 加密算法,比 MD5 更好的算法更好的算法,希望对大家有帮助-SHA 256 encryption algorithm, better than the MD5 algorithm better algorithm, we hope to help

What Does the code DO? Sometimes we may desire to hide our file contents from others.One of the possible way is encrypting these files.Here a simple encryption technique is used(In VB - The same technique can be implemented in "c" also.) Program flow Explained * Open the File to be encrypted for Binary Access Read(Say Source File) * Open a temparory file where encrypted data is stored for Binary Access Write(Say Destination File) * Loop through the Source File Byte by Byte * For each byte read from the file, Complement the data. (Using Not operator (in C we have to use "~" operator) * Write Complemented Data to Destination File * Delete the Source File * Rename Destination file as Source File(Now Encryption is over) -What Does the code DO? Sometimes we may desire to hide our file contents from others.One of the possible way is encrypting these files.Here a simple encryption technique is used (In VB- The same technique can be implemented in

C语言环境下的AES加密算法，支持128位的AES加密。-C language environment AES encryption algorithm, support 128-bit AES encryption.

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

一个用BCB写的壳！-with BCB was a shell!

vb写的DES源码，复制到Visual Basic 6.0 中即可使用。-vb source code written by DES, copy to the Visual Basic 6.0, can be used.

DES算法的C语言实现，大家可以参考一下。-DES algorithm to achieve the C language, we can reference.