演示各种数据的加密方式，md5，rot13，凯撒加密等。-Demonstrate various data encryption, md5, the rot13 Caesar cipher.

The Vigenère cipher is a method of encrypting alphabetic text by using a series of different Caesar ciphers based on the letters of a keyword. It is a simple form of polyalphabetic substitution. The Vigenère (French pronunciation: ​[viʒnɛːʁ]) cipher

simple caesar cipher demo and source code, build in windows form c#