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caesar-cipher
Created by @Divlo on 21 October 2020.
Instructions
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.
Example of the alphabet with a rotation by 3
Original alphabet : ABCDEFGHIJKLMNOPQRSTUVWXYZ
Alphabet rotated +3 : DEFGHIJKLMNOPQRSTUVWXYZABC
Complete the solution function. It should return the encrypted string.
The function has the following parameter(s):
string
: a string in cleartext (everything uppercase)shift
: an integer, the alphabet rotation factor
Source
Examples
See the input-output.json
file for examples of input/output.