bmp图像的加密

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

This software calculates the crc32 polynomial of a string. There is one class cCrc32.

Base64的Decode和Encode-Encode and Decode

SHA-2 的代码实现-SHA-2 source implementation

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

B/S开发,在PB编程中B/S开发需要的PBD文件,请大家分享.-B/S DEVELOPER

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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

在PB中通过读取硬盘序列号实现软件加密-in PB by reading drive serial number encryption software

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