et99_softfull

国密算法sm2、sm3、sm4的c语言实现(Domestic cryptography algorithm sm2 sm3 sm4)

用于车型定位识别所用的加密狗文件，非常实用(Dongle for vehicle location identification file used, very practical)

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.)

实现了ECC算法的加密解密，主要是对字符串的加解密。(Realize the ECC algorithm encrypt, decrypt, is mainly to the string encryption.)

自己动手写加壳程序，按照文档一步一步来，做你自己的加壳程序！(Packers to write himself, according to the document step by step, do your own packers!)

星号密码查看器，只需将放大镜置于要查看星号密码的上方，就能显示出原密码。(Asterisks password viewer, simply put a magnifying glass to view asterisk password above, can show the original password.)

十分 规范完整 详细的MD5 消息摘要算法(Very standard complete detailed MD5 news the algorithm )

SHA-1 algorithm implemented in C.

凯撒密码作为一种最为古老的对称加密体制，在古罗马的时候都已经很流行，他的基本思想是：通过把字母移动一定的位数来实现加密和解密。例如，如果密匙是把明文字母的位数向后移动三位，那么明文字母B就变成了密文的E，依次类推，X将变成A，Y变成B，Z变成C，由此可见，位数就是凯撒密码加密和解密的密钥。个人原创。(Caesar password as one of the most ancient symmetric encryption system in ancient Rome have been very popular, his basic idea is: by the letters move a certain number of bits to achieve encryption and decryption. For example, if the key is the number of bits of plaintext letters backward move three, the plaintext letter B into a ciphertext E, and so on, X will become Y-become a B,, and Z becomes C Thus, the median is the Caesar cipher encryption and decryption keys. Personal originality.)

C语言实现简单的RSA文件加解密 适合初学者(Simple RSA file encryption and decryption in C language Suitable for beginners)