上传一个很好的加密算法

Cryptography application implement in PIC

128位的AES加密算法、可以在FPGA上实现。利用硬件描述语言Verilog实现。各个模块都有，行变换、列混淆、轮密钥加变换、密钥扩展，并且有说明文档PDPF格式的。有完整的测试程序Testbench。特别适合研究AES加密算法的爱好者。

RSA实现数字签名算法 VC++实现，有图形化窗口-Digital Signature Algorithm to RSA

TableCrypt is a file encryption utility. The major difference with most file encryptors is that this program uses a generated table in combination with a password to encrypt a file. This way you need 2 variables to decrypt the file. This is how it works: Generate a 10kb table file and enter a password. The password is used to pick bytes from the table file which in their turn are used to encrypt the bytes of the inputfile with XOR encryption.

Proguard是强大的Java字节码混淆器，含有源代码，可以根据自己需求修改编译。满足自身需求。 也可以作为爱好者自学的好材料。

算法参考于《密码编码学及网络安全》上关于RSA加密算法的定义。相关程序在Visual C++ 6.0上能正确运行（估计在其他C语言编程环境下也能运行吧），程序里面详细写上了注解，希望能够给你带来帮助。

Windows易用免费MD5验证工具WMD5

Fountain Encoding Algrothm

密钥扩展的源代码-Key expansion of the source code