用C#实现Vigenere cypher算法，用Visual 2005运行-With C# Achieve Vigenere cypher algorithms, using Visual 2005 run

粗程序用c语言实现了维吉尼亚密码的加密算法-Procedures used coarse language to achieve the Virginia c password encryption algorithm

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