/**
* Decrypt a string using asymmetric cryptography
* Wraps SymmetricCrypto::decrypt()
*
* @param string $source Ciphertext
* @param EncryptionSecretKey $ourPrivateKey Our private key
* @param EncryptionPublicKey $theirPublicKey Their public key
* @param boolean $raw Don't hex decode the input?
* @return string
*/
public static function decrypt(string $source, EncryptionSecretKey $ourPrivateKey, EncryptionPublicKey $theirPublicKey, bool $raw = false) : string
{
$ecdh = new EncryptionKey(self::getSharedSecret($ourPrivateKey, $theirPublicKey));
$ciphertext = SymmetricCrypto::decrypt($source, $ecdh, $raw);
unset($ecdh);
return $ciphertext;
}
/**
* Decrypt a string using asymmetric cryptography
* Wraps SymmetricCrypto::decrypt()
*
* @param string $ciphertext The message to decrypt
* @param EncryptionSecretKey $ourPrivateKey Our private key
* @param EncryptionPublicKey $theirPublicKey Their public key
* @param mixed $encoding Which encoding scheme to use?
* @return HiddenString The decrypted message
*/
public static function decrypt(string $ciphertext, EncryptionSecretKey $ourPrivateKey, EncryptionPublicKey $theirPublicKey, $encoding = Halite::ENCODE_BASE64URLSAFE) : HiddenString
{
$sharedSecretKey = new EncryptionKey(self::getSharedSecret($ourPrivateKey, $theirPublicKey));
$plaintext = SymmetricCrypto::decrypt($ciphertext, $sharedSecretKey, $encoding);
unset($sharedSecretKey);
return $plaintext;
}
