right ORCLE database protection, and highly functional, encryption, access, dele...

CRC32哈希算法的C#版源码．采用的是动态生成码表的方法．-CRC32-hash algorithm in C# version of the source code. The code is dynamically generated table method.

DES( Data Encryption Standard)算法，于1977年得到美国政府的正式许可，是一种用56位密钥来加密64位数据的方法。DES算法以被应用于许多需要安全加密的场合。（如：UNIX的密码算法就是以DES算法为基础的）。-DES (Data Encryption Standard) algorithm, in 1977 the United States government"s official permission, is a key 56 to 64-bit data encryption methods. DES algorithm to be applied to many needs security encryption occasions. (Eg : UNIX password algorithm is to DES algorithm-based).

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

本人做的一个小代码，密码学里面要用到的，网上流传的都是运行错误的，这个绝对可以-I do a small code, which use cryptography to the spread of the Internet are operational errors, This can definitely

md5例程 主要可以通过程序了解md5如何加密，在编程是可以直接借用。-md5 routines mainly through the process to understand how md5 encryption, in the programming can be borrowed directly.

1、 实验要求：用高级语言编写求自由距离的程序-1, the experimental requirements: high-level language used for the preparation of the procedures from the Freedom

md5加密算法，适用于linux开发环境。-md5 encryption algorithm applied to linux development environment.

DIAMOND2加密算法的原代码-DIAMOND2 encryption algorithm source code

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

这个小软件通过在可执行文件(.exe)的尾部添加一个新节(Section)，并且修改PE的入口地址，使可执行文件在运行时，跳出一个输入密码的对话框，从而实现了简单的加密。-small software in executable files (. Exe) to the tail adding a new section (Section), and amend the PE import addresses, so that the executable file is run, jump out of a password dialog box, thus achieving a simple encryption.