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Translator Reviews ( Chinese (Traditional) → English )

Rating: 50 / Native Chinese (Traditional) / 0 Reviews / 11 Nov 2017 at 16:36

ariel_w
ariel_w 50 日本滞在歴は5年です。 翻訳の仕事を始めてから4年ほどになります。 内...
Chinese (Traditional)

在密碼學中,愷撒密碼,或稱愷撒加密、愷撒變換、變換加密,是一種最簡單且最廣為人知的加密技術。它是一種替換加密的技術,明文中的所有字母都在字母表上向後(或向前)按照一個固定數目進行偏移後被替換成密文。例如,當偏移量是3的時候,所有的字母A將被替換成D,B變成E,以此類推。
(Wikipedia:凱薩密碼)


偏移量為3的英文字母對應
這是一個很簡單的方法,也非常容易被破解。

凱薩加密破解 — — 窮舉法示例(Wikipedia)

English

In Cryptography, Caesar cipher, also known as Caesar's cipher, is a simple and well-known encryption. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter some fixed number of positions down the alphabet. For example, with a left shift of 3, A would be replaced by D, B would become E, and so on.
(Wikipedia: Caesar cipher)

The English alphabets with a left shift of 3
It is a simple method, and is easily broken.

Breaking the Caesar cipher, an example of Brute-force attack (Wikipedia)

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Additional info: 密文:(Ciphertext / Cyphertext)
明文:Plaintext
密碼學:Cryptography
中國式密碼:(Chinese Cipher)
「謎」式密碼機:(Enigma)

主要為科普文章,圖片部分可以參考自此:https://medium.com/@tih/%E6%88%91%E5%92%8C%E4%BD%A0%E7%9A%84%E5%B0%88%E5%B1%AC%E5%AF%86%E8%AA%9E-5982868d0724