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