/// <summary>
/// Decrypts the encrypted data to the given stream
/// </summary>
/// <param name="outputPlaintextStream">The resulting plain text stream.</param>
public void DecryptTo(Stream outputPlaintextStream)
{
if (!PassphraseIsValid)
{
throw new InternalErrorException("Passphrase is not valid!");
}
using (ICryptoTransform decryptor = DataCrypto.DecryptingTransform())
{
using (V1AxCryptDataStream encryptedDataStream = CreateEncryptedDataStream(_reader.InputStream, DocumentHeaders.CipherTextLength))
{
encryptedDataStream.DecryptTo(outputPlaintextStream, decryptor, DocumentHeaders.IsCompressed);
}
}
if (Hmac != DocumentHeaders.Headers.Hmac)
{
throw new Axantum.AxCrypt.Core.Runtime.IncorrectDataException("HMAC validation error.", ErrorStatus.HmacValidationError);
}
}
