decode b64 encoded aaguid in authData. credentialData

decodeAAGUID.py

import base64
import sys

def decode_and_convert_to_hex(encoded_str):
    # Decode from Base64 to bytes
    decoded_bytes = base64.b64decode(encoded_str)

    # Convert bytes to hexadecimal
    hex_string = decoded_bytes.hex()

    aaguid = "-".join([hex_string[:8],hex_string[8:][:4],hex_string[12:][:4],hex_string[16:][:4],hex_string[20:]])
    # Return the hexadecimal string
    return aaguid

if __name__ == "__main__":
    if len(sys.argv) != 2:
        print("Usage: python script.py <base64_encoded_string>")
        sys.exit(1)

    encoded_input = sys.argv[1]
    hex_output = decode_and_convert_to_hex(encoded_input)
    print("Hexadecimal representation:", hex_output)