def asurl (email,
                 public_key,
                 private_key):
    
    cryptmail = _encrypt_string (email, base64.b16decode (private_key, casefold=True), '\0' * 16)
    base64crypt = base64.urlsafe_b64encode (cryptmail)

    return "%s/d?k=%s&c=%s" % (MAIL_HIDE_BASE, public_key, base64crypt)
Wraps an email address with reCAPTCHA mailhide and
dataset/ETHPy150Open natestedman/Observatory/observatory/lib/recaptcha/client/mailhide.py/asurl