C++ Under the base64 encoding, can support any data base64 encoding.

本代码实现了维吉尼亚密码，维吉尼亚密码是基于简单的凯撒密码改进而来的多表替换密码，代码简单，供交流学习使用。

VB的MD5算法源码 VB的MD5算法源码-VB source code of MD5 algorithm is the MD5 algorithm for VB source code of MD5 algorithm for VB source code

一个免费实用的DELPHI AES 加密算法函数包及演示文件,给有需要的朋友-a free practical DELPHI AES encryption algorithm function package and demonstrate the documents to a friend in need

大素数生成器，很好用的程序，可以快速的生成，并可以用TXT文档表示出来~-Large prime number generator, a good procedure to use, can be quickly generated, and TXT files that can be used by the ~

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

得到大素数的算法的Pascal源码 - Obtains the big prime number the algorithm Pascal source code

这是RC5算法的实现-This is the realization of RC5 Algorithm

dos环境下的利用硬盘序列号加密的程序-dos environment sequence drives the use of encryption procedures

a sample algorithm of rsa in langage C-a sample algorithm of rsa in langage C++

C++ 源代码实现 非对称算法（RSA）-C++ Source code to achieve asymmetric algorithms (RSA)