challenge_1.py

"""
Orel Ben-Reuven
https://cryptopals.com/sets/1/challenges/1

Convert hex to base64
The string:
49276d206b696c6c696e6720796f757220627261696e206c696b65206120706f69736f6e6f7573206d757368726f6f6d

Should produce:
SSdtIGtpbGxpbmcgeW91ciBicmFpbiBsaWtlIGEgcG9pc29ub3VzIG11c2hyb29t

So go ahead and make that happen. You'll need to use this code for the rest of the exercises.

Cryptopals Rule
Always operate on raw bytes, never on encoded strings. Only use hex and base64 for pretty-printing.
"""

import base64

if __name__ == '__main__':
    string_src = '49276d206b696c6c696e6720796f757220627261696e206c696b65206120706f69736f6e6f7573206d757368726f6f6d'
    raw_src = bytes.fromhex(string_src)
    # raw_src = b"I'm killing your brain like a poisonous mushroom"

    # encode to base64
    b64_string = base64.b64encode(raw_src)
    # b64_string = b'SSdtIGtpbGxpbmcgeW91ciBicmFpbiBsaWtlIGEgcG9pc29ub3VzIG11c2hyb29t'

    # checking result
    out = b'SSdtIGtpbGxpbmcgeW91ciBicmFpbiBsaWtlIGEgcG9pc29ub3VzIG11c2hyb29t'
    print(b64_string == out)