https://github.com/metsanpeitto/ruby_caesar

https://github.com/metsanpeitto/ruby_caesar

Last synced: 2 days ago
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• Host: GitHub
• URL: https://github.com/metsanpeitto/ruby_caesar
• Owner: Metsanpeitto
• Created: 2021-05-19T20:15:34.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2021-05-20T07:38:44.000Z (over 3 years ago)
• Last Synced: 2023-03-10T11:56:14.016Z (over 1 year ago)
• Language: Ruby
• Size: 2.93 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# ruby_caesar

This is a practice exercise for the Odin Project.

Assignment

From Wikipedia:

In cryptography, a Caesar cipher, also known as Caesar’s cipher, the shift cipher, Caesar’s code or Caesar shift, is one of the simplest and most widely known encryption techniques. 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, D would be replaced by A, E would become B, and so on. The method is named after Julius Caesar, who used it in his private correspondence.

There’s a video about it from Harvard’s CS50 class.

Implement a caesar cipher that takes in a string and the shift factor and then outputs the modified string:

  > caesar_cipher("What a string!", 5)

  => "Bmfy f xywnsl!"

Quick Tips:

You will need to remember how to convert a string into a number.

Don’t forget to wrap from z to a.

Don’t forget to keep the same case.