public function getTag()
{
if (empty($this->server_config['crypto']['signing_key'])) {
echo "No keypair found. Keys are generated when you first start your notary.\n";
echo "\nTry running this first:\n\tasgard notary start\n";
exit;
}
$pubkey = \Sodium::crypto_sign_publickey(\base64_decode($this->server_config['crypto']['signing_key']));
$tag = 'http';
if ($this->server_config['tls']['enabled']) {
$tag .= 's';
}
$tag .= '://' . $this->server_config['host'];
$tag .= ':' . $this->server_config['port'];
$tag .= '/#';
$tag .= \urlencode(\base64_encode($pubkey));
echo $tag . "\n";
}