PB使用MD5加密,可以有效解决PB开发中登录密码使用明文的问题

CRC校验中叠加和校验方法的生成，校验等功能函数源码。-CRC verification and validation methods of superposition generation, calibration source, such as performance function.

RSA文件加密算法实现，特别好，请大家试用-RSA File encryption algorithm, are particularly good, please try

共享软件加密算法库v2.0 (C++)-sharing software encryption algorithm library v2.0 (C)

c++的基于openssl实现的简单aes文件加密类 -c++ realize openssl based on a simple type of file encryption aes

在原作者Jim Gillogly代码的基础上修改优化，并实现C++改写。实现了DES加密。当然，密钥可在源文件中修改，或提供修改的接口函数。-the originator Jim Gillogly code revision on the basis of optimization, and to achieve C rewritten. Implementation of DES encryption. Of course, the key in the source documents changes, or amendments to provide the interface function.

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我用C#做的一个对字符串加密的程序，加密对象为26个字母大小写和0到9的数字，实现的是替代法-I used C# do a strings encryption procedures, encryption targeted at 26 case-sensitive alphanumeric 0-9 and figures to achieve the substitution

Rjindeal加密算法-Rjindeal encryption algorithm

MD5加密算法得VisualC＋＋6.0源程序，直接调用里面的函数即可-MD5 Encryption Algorithm in Visual C++ 6.0 source code, direct calls to the function can be

aes 算法的DEMO-Aes algorithm DEMO