Cryptography and Network Security, 4th Ed.

实现数据库安全编程,写了一个MD5的加密库-Database Security Programming realize, write a MD5 encryption library

Inroduce the algorithm of RSA.

aes 算法的DEMO-Aes algorithm DEMO

算术运算实现字母的替换。凯撒加密就是一种单字母替换法：通过用户给出密钥将字母加上密码变成密文-Arithmetic operations to achieve the replacement of letters. Caesar encryption is the replacement of a single-letter law: the user is given the letter key will be encrypted into a ciphertext

BASE64编码的实现-BASE64 encoded realize

文件加密技术一例给文件加密的技术很多,其中又分为不同等级,以适合不同场合的需要.这里给出最简单的文件加密技术,即采用文件逐字节与密码异或方式对 文件进行加密,当解密时,只需再运行一遍加密程序即可.-file encryption technology to the case file encryption technologies lot, which will be divided into different levels, to suit the needs of different occasions. Here is the most simple file encryption technology, which adopts a case-by-byte file with the password or different ways to document encryption, decryption, only re-running again encryption procedures.

用VERILOG语言实现的数据加密标准代码,在QUARTUS5.1上仿真过-Using Verilog language code of the Data Encryption Standard, in the simulation had QUARTUS5.1

encryption for advanced system can be used for aes 128

此代码实现S-P密码的加密解密，在这个实验中用到了S盒和P盒随机发生器-this code to achieve S-P password encryption and decryption, in this experiment uses S boxes and boxes of random generator P