Vigenere Encrypt

Problem

Encrypt uppercase text with the Vigenere cipher: shift each letter by the corresponding key letter, repeating the key, with all arithmetic modulo 26. Return the uppercase ciphertext, which has the same length as the text.

Hint

A key of A leaves the text unchanged.

Test cases

case 1

in: ["HELLO","KEY"]

expected: "RIJVS"

case 2

in: ["ABC","AAA"]

expected: "ABC"

case 3

in: ["XYZ","BCD"]

expected: "YAC"

case 4

in: ["ATTACKATDAWN","LEMON"]

expected: "LXFOPVEFRNHR"

Starter codePython

def vigenere_encrypt(text, key):
    # Your code here
    pass

4 test cases · run your code against them in the editor