kms Crypto AESEncrypter Partial 2

AESEncrypter.cs

byte[] encryptedData;
AmazonKeyManagementServiceClient kmsClient = new AmazonKeyManagementServiceClient();

GenerateDataKeyRequest dataKeyRequest = new GenerateDataKeyRequest()
{
    KeyId = _keyId,
    KeySpec = DataKeySpec.AES_256
};

GenerateDataKeyResponse dataKeyResponse = await  kmsClient.GenerateDataKeyAsync(dataKeyRequest);

byte[] encryptedDataKey = dataKeyResponse.CiphertextBlob.ToArray();
byte[] plainTextKey = dataKeyResponse.Plaintext.ToArray();