SM4

MD5是一种被广泛使用的“消息-摘要算法”。实际上就是一个单项散列函数。(MD5 is a widely used " message- digest algorithm." Is actually a single hash function.)

Hideseek可将秘密文件隐写到指定图片中，并可检测隐写信息，本文是对该软件的使用说明。(hide &seek to run the file through individual test run normally. Hidden secret documents can be written to the specified picture, and can detect steganographic message.)

说明：  用C++实现的图像加密和解密算法代码,功能强大(Using C++ implementation of image encryption and decryption algorithm code, powerful)

VB6.0调用Windows系统的API计算MD5码。这个代码跟网上流行的代码相比，具有代码简洁，维护方便，运行效率高等优点。运行速度比用纯VB6实现的快得多。(VB6.0- Call Windows system API calculate MD5 code. This code is compared with the popular online code, with code simple, easy maintenance, high efficiency. Runs faster than pure VB6 realize faster.)

实现维吉尼亚密码，用键盘接收明文和密钥，屏幕打印密文和解密后的明文。 可以实现：大小写敏感，明文小写则密文大写，明文大写则密文小写输出，注意输入的健壮性控制，明文字符超出字符集后保留原文(Virginia to achieve the password, use the keyboard to receive the plaintext and the key, the screen printing ciphertext and the decrypted plaintext. Can be achieved: case sensitive, then the ciphertext plaintext lowercase uppercase, lowercase plaintext ciphertext output is capital, pay attention to the robustness of the control input, plaintext characters out retain the original character set)

通过MATLAB的编程，实现对图片的加密，奇异值的分解，离散变化，程序简单，明了。(Through MATLAB programming, realize the image encryption, singular value decomposition and discrete changes, procedure is simple, clear.)

sha256计算代码，非常好用的代码，大家可以用这个代码直接计算哈希值，sha256实现 依次执行 SHA256Init、 SHA256Update SHA256Final 三个函数即可得到sha256结果(sha256 sourse code，Is very usefull)

说明：  使用维吉尼亚密码进行控制台编程，实现对英文文本文件的加解密！(Virginia password using the console program, to achieve the English version of the document encryption and decryption!)

将天骄2服务端的加密文本文件与生成的软件放在同一目录下,点击批量转换, 完成后会在同目录下生成一个名为temp的文件夹,其中存放的就是转换后的文件. 因为加密和解密的规则完全相同,所以加密过程和解密过程相同, 也就是说如果原来的文件存放的是原文,转换后就会生成密文,如果原来是密文,转换后生成原文. 适用于天骄2,凤舞天骄的所有版本服务端.(The the Tianjiao 2 server encrypted text file in the same directory with the generated software, click on the batch conversion finished, it will generate a folder named temp in the same directory, which store the converted file encryption and decryption rules are identical, so the encryption and decryption process is the same, that is to say if the original file is stored in the original conversion will generate the ciphertext, if the original ciphertext, conversion generated text. apply to tianjiao, all of Fung Mo tianjiao, the version of the server.)

今天我们学习了des对称加密算法这是一个des算法的C++实现(This is a des !)