维吉尼亚体制是最古老而且最著名的多表密码体制之一，它是人们为了提高密码的破译的难度发明的一种多表置换的密码，它是由16世纪法国亨利三世王朝的布莱瑟• 维吉尼亚发明的，其特点是将26个恺撒密表合成一个维基尼亚密码(Vigenere),Virginia system is the oldest and most famous one of multi-table cryptosystem, it is a password in order to improve the difficulty of deciphering the invention of a multi-table replacement password, it is from the 16th century, Henry III of France dynasty cloth leatherhead