https://github.com/jackhowa/caesars-cipher

Do the classic shift cipher decoding in js
https://github.com/jackhowa/caesars-cipher

algorithm cipher-algorithms freecodecamp

Last synced: 6 days ago
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Do the classic shift cipher decoding in js

• Host: GitHub
• URL: https://github.com/jackhowa/caesars-cipher
• Owner: JackHowa
• Created: 2017-08-13T20:40:01.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2017-08-13T21:20:38.000Z (over 7 years ago)
• Last Synced: 2024-11-20T21:58:24.587Z (2 months ago)
• Topics: algorithm, cipher-algorithms, freecodecamp
• Language: JavaScript
• Homepage: https://www.freecodecamp.org/challenges/caesars-cipher
• Size: 1.95 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# caesars-cipher

One of the simplest and most widely known ciphers is a Caesar cipher, also known as a shift cipher. In a shift cipher the meanings of the letters are shifted by some set amount.

A common modern use is the ROT13 cipher, where the values of the letters are shifted by 13 places. Thus 'A' ↔ 'N', 'B' ↔ 'O' and so on.

Write a function which takes a ROT13 encoded string as input and returns a decoded string.

All letters will be uppercase. Do not transform any non-alphabetic character (i.e. spaces, punctuation), but do pass them on.