def parse_secret_from_authentication_url(url):
    """
    This helper will parse the secret part of a totp url like
    otpauth://totp/alice%07c%40apothekia.de?secret=M3FAFWGD2QA5JJPCPWEOKALPBROHXOL3&algorithm=SHA1&digits=6&period=30
    """
    return url.split("secret")[1][1:33]