| 术语 | Vigen'ere cipher |
| 释义 | Vigen'ere cipher Vigen'ere密码 In cryptography, a polyalphabetic substitution cipher first published in 1586. This cipher may be considered as a precursor of stream ciphers. Effectively each letter is replaced by a number related to its alphabetic position; the repeated keyword represents the keystream, and the plaintext/keystream numbers are added modulo 26. 于1586年首次发表的一种多表置换密码。它可看作是序列密码的前身。实际上，每个字母用 与它在字母表中位置相关的数代替；以密钥字重复代表密钥流，明文/密钥流的数值进行模2 6加。 参阅Vernam cipher。 |
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