维吉尼亚密码加密与破译 基于《密码学原理与实践》冯登国 维吉尼亚介绍进行实现 可对26个字母构成的明文进行加密与破译 原创-Virginia password encryption and deciphering based on cryptography principles and practice Feng Dengguo Virginia introduced to achieve the 26 letters can be composed of plaintext encrypt