一个不错的文件加密系统，对你工作的安全大大加强。

md5的源代码，我下了源代码不过不知道怎么使用哦，请各位大哥多多指教呀！-md5 source code, I had the source code but do not know how to use Oh, please enlighten me a lot of big brother!

这是MD5算法的 Asm 实现，代码效率高，-This is the MD5 algorithm Asm implementation, code efficiency,

本文介绍了在JAVA开发环境中如何对文件和数据进行有效的加密，特别是里面API的调用-This paper presents the Java development environment and how to document effective data encryption, in particular inside the API ca

几个密码算法的源代码，不知道有了没有~~ 下的人多了就继续上传-Some source programs of encryption arithmetic.I don t know whether it is always existed or not.I will upload it if a lot of people have downloaded.

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

此小程序是MD5的加密算法，里面有详细的注释！-This small program is MD5 encryption algorithm, there are detailed notes!

MD5文件签名算法的另一个实现-MD5 algorithm to achieve another

密码学学习的C语言函数库――Miracl库。对密码学学习很有帮助-Cryptography to learn C language library- Miracl library. Very helpful for learning cryptography

程序运行时间限制的封装类-running time limits the types of Packaging

DES加密类，可以自定义key，可以更改IP置换表-DES encryption type, you can customize the key, you can change the IP permutation table