/**
* This function is called after the dependencies have been injected by
* AutoPilot. Think of it as a user-land constructor.
*/
public function airshipLand()
{
parent::airshipLand();
$config = State::instance();
if (empty($config->universal['notary']['enabled'])) {
\Airship\json_response(['status' => 'error', 'message' => 'This Airship does not offer Notary services.']);
}
$this->sk = $config->keyring['notary.online_signing_key'];
$this->pk = $this->sk->derivePublicKey();
$this->channel = $config->universal['notary']['channel'];
$this->chanUp = $this->blueprint('ChannelUpdates', $this->channel);
}
/**
* Sign a message, using your secret key
*
* @param string|resource $sealed
* @param EncryptionPublicKey $publicKey
* @return string
*/
public function signAsymmetric($message, SignatureSecretKey $secretKey, array $options = []) : string
{
$signature = '';
$signed = \openssl_sign($message, $signature, $secretKey->getPEM(), 'sha384WithRSAEncryption');
if ($signed) {
return binhex($signature);
}
}
/**
* Sign the contents of a file
*
* @param ReadOnlyFile $input
* @param SignatureSecretKey $secretkey
* @param bool $raw_binary Don't hex encode?
* @return string
* @throws CryptoException\InvalidKey
*/
protected static function signData(ReadOnlyFile $input, SignatureSecretKey $secretkey, bool $raw_binary = false) : string
{
if (!$secretkey instanceof SignatureSecretKey) {
throw new CryptoException\InvalidKey('Argument 1: Expected an instance of SignatureSecretKey');
}
$csum = self::checksumData($input, $secretkey->derivePublicKey(), true);
return AsymmetricCrypto::sign($csum, $secretkey, $raw_binary);
}
/**
* Set up our key pair
*
* @param SignatureSecretKey $secret
*/
protected function setupKeyPair(SignatureSecretKey $secret)
{
$this->secretKey = $secret;
$this->publicKey = $this->secretKey->derivePublicKey();
}
/**
* Sign the contents of a file
*
* @param ReadOnlyFile $input
* @param SignatureSecretKey $secretKey
* @param bool $raw_binary Don't hex encode?
* @return string
*/
protected static function signData(ReadOnlyFile $input, SignatureSecretKey $secretKey, bool $raw_binary = false) : string
{
$checksum = self::checksumData($input, $secretKey->derivePublicKey(), true);
return AsymmetricCrypto::sign($checksum, $secretKey, $raw_binary);
}
/**
* Sign a message with our private key
*
* @param string $message Message to sign
* @param SignatureSecretKey $privateKey
* @param mixed $encoding Which encoding scheme to use?
* @return string Signature (detached)
*/
public static function sign(string $message, SignatureSecretKey $privateKey, $encoding = Halite::ENCODE_BASE64URLSAFE) : string
{
$signed = \Sodium\crypto_sign_detached($message, $privateKey->getRawKeyMaterial());
$encoder = Halite::chooseEncoder($encoding);
if ($encoder) {
return $encoder($signed);
}
return $signed;
}
/**
* Sign the contents of a file
*
* @param ReadOnlyFile $input
* @param SignatureSecretKey $secretKey
* @param mixed $encoding Which encoding scheme to use for the signature?
* @return string
*/
protected static function signData(ReadOnlyFile $input, SignatureSecretKey $secretKey, $encoding = Halite::ENCODE_BASE64URLSAFE) : string
{
$checksum = self::checksumData($input, $secretKey->derivePublicKey(), true);
return AsymmetricCrypto::sign($checksum, $secretKey, $encoding);
}
