public function testCreate()
{
$privateKey = CurveFactory::getGeneratorByName('nistp256')->getPrivateKeyFrom(gmp_init(100));
$iv = random_bytes(16);
$method = 'AES-128-CBC';
$key = new EncryptedPrivateKey($privateKey, $method, $iv);
$this->assertEquals($iv, $key->getIv());
$this->assertEquals($method, $key->getMethod());
$this->assertSame($privateKey, $key->getKey());
}
/**
* @param EncryptedPrivateKey $key
* @param string $password
* @return string
*/
public function serialize(EncryptedPrivateKey $key, $password)
{
$privateKey = $key->getKey();
$iv = $key->getIv();
$method = $key->getMethod();
$plaintext = $this->derSerializer->serialize($privateKey);
$key = md5($password . substr($iv, 0, 8), true);
$ciphertext = openssl_encrypt($plaintext, $method, $key, OPENSSL_RAW_DATA, $iv);
if (false === $ciphertext) {
throw new \RuntimeException('Failed to encrypt key');
}
return "-----BEGIN EC PRIVATE KEY-----" . "\n" . "Proc-Type: 4,ENCRYPTED" . "\n" . "DEK-Info: " . strtoupper($method) . "," . strtoupper(unpack("H*", $iv)[1]) . "\n\n" . implode("\n", str_split(base64_encode($ciphertext), 64)) . "\n" . "-----END EC PRIVATE KEY-----";
}
public function testSerializeEncFail()
{
$iv = random_bytes(16);
$method = 'AES-128-CBC';
$password = false;
/** @var GeneratorPoint $generator */
$generator = Curves::generator('nistp256');
$privateKey = $generator->getPrivateKeyFrom(gmp_init(1923123));
$cryptKey = new EncryptedPrivateKey($privateKey, $method, $iv);
$this->assertSame($privateKey, $cryptKey->getKey());
$this->assertEquals($method, $cryptKey->getMethod());
$this->assertEquals($iv, $cryptKey->getIv());
$adapter = EccFactory::getAdapter();
$serializer = new EncryptedPrivateKeySerializer(new DerPrivateKeySerializer($adapter));
$serializer->serialize($cryptKey, $password);
}
/**
* @param EncryptedPrivateKey $that
* @return bool
*/
public function equals(EncryptedPrivateKey $that)
{
return $this->getMethod() === $that->getMethod() && $this->getIv() === $that->getIv() && BinaryString::constantTimeCompare(gmp_strval($this->getKey()->getSecret(), 10), gmp_strval($that->getKey()->getSecret(), 10));
}
