MD5withRSA

从一个随机文件读取256字节数据形成数据区DArea，再应用洗牌法所给的方法生成0~255的一个全排列DTab。试分别写出"求DArea中全部数据经 （1）以DTab为S-盒； （2）以DTab为P置换 -from a random file read 256 byte data area DArea form data, re-shuffling in law application to the formation of 0 ~ 255 DTab a full array. Try to write were "seeking DArea by which all data (1) DTab S-boxes; (2) DTab replacement for the P

ASProtect-protect your application

GOSTDSA算法的Pascal实现和例子，包括签名和确认-GOSTDSA the algorithm Pascal realization and the example, including sign and confirmed

aes 算法的DEMO-Aes algorithm DEMO

使用维吉尼亚矩阵进行对明文的加密以及解密。(Vigenere matrix is used to encrypt and decrypt plaintext.)

信息安全课程的实验，含AES、DES、RSA三个加密算法和MD5、SHA-1两个哈希算法的C/C++源代码，可以加密字符串和文件。开发环境为VS，有完整的工程文件及代码，欢迎下载。

破解VI的密码,两种方法可用,MD5算法(Two methods for password crack of vi)

语音编码文档，将ILBC代码专为硬件时需进行操作及对代码进行优化-Speech coding documentation, will be ILBC code specifically for the hardware required to operate and optimize the code

Microsoft CryptoAPI中公私密钥对的使用、HASH算法、数字签名等技术-Microsoft CryptoAPI in the use of public-private key pair, HASH algorithm, digital signature technology

说明：  AES算法（即 Rijndael 算法）是一个对称分组密码算法。数据分组长度必须是 128 bits，使用的密钥长度为 128，192 或 256 bits。对于三种不同密钥长度的 AES 算法，分别称为“AES-128”、“AES-192”、“AES-256”。本文在分析了 AES 加密原理的基础上着重说明了算法实现的具体步骤，并用 C++ 实现了对文件的加密和解密。(AES algorithm (Rijndael algorithm) is a symmetric block cipher algorithm.The data packet length must be 128 bits and the key length used is 128,192 or 256 bits.For the three AES algorithms with different key lengths, they are called "aes-128", "aes-192", and "aes-256".In this paper, on the basis of analyzing the principle of AES encryption, the concrete steps of the algorithm are emphatically explained, and the encryption and decryption of files are realized by C++.)