Generate a Shodan favicon hash (32-bit signed MMH3 hash) from file

shodan-favicon-hash.py

import base64
import re
import mmh3


with open('favicon.ico', 'rb') as favicon:
    # 1. To base64
    b64 = base64.b64encode(favicon.read())
    # 2. To string
    utf8_b64 = b64.decode('utf-8')
    # 3. !Required to match Shodan! Insert newlines (\n) every 76 characters, and also at the end
    with_newlines = re.sub("(.{76}|$)", "\\1\n", utf8_b64, 0, re.DOTALL)
    # 4. MMH3 hash
    hash = mmh3.hash(with_newlines)
    
    print(hash)