表格法 Polyalphabetic cipher
（重定向自Polyalphabetic substitution）
表格法（拉丁语：tabula rēcta）在密码学中是一张正方形的表格包含拉丁字母，每一新行的字母皆向左或右前推一格。此名由约翰尼斯·特里特米乌斯于1508年发明，共用于其特里特米乌斯密码.
特里特米乌斯使用此表格来制造一个替换式密码#多表替换加密。这相当于莱昂·巴蒂斯塔·阿尔伯蒂的密码碟。表格法通常用于古典密码，如维吉尼亚密码和自动密钥密码。
Polyalphabetic substitution
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Polyalphabetic cipher 表格法
（重定向自Polyalphabetic substitution）
A polyalphabetic cipher is any cipher based on substitution, using multiple substitution alphabets. The Vigenère cipher is probably the best-known example of a polyalphabetic cipher, though it is a simplified special case. The Enigma machine is more complex but still fundamentally a polyalphabetic substitution cipher.
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