public void Encrypt(Stream dataStream, Stream encryptedStream, string password = null)
{
byte [] key = PasswordDeriver.DeriveKey(Password ?? password);
ICryptoTransform cryptoTransform = SymmetricAlgorithm.CreateEncryptor(key, InitialVector);
using (var cryptoStream = new CryptoStream(encryptedStream, cryptoTransform, CryptoStreamMode.Write))
{
dataStream.CopyTo(cryptoStream);
}
}
public byte[] Decrypt(Stream encryptedDataStream, string password = null)
{
byte [] key = PasswordDeriver.DeriveKey(Password ?? password);
ICryptoTransform cryptoTransform = SymmetricAlgorithm.CreateDecryptor(key, InitialVector);
using (var cryptoStream = new CryptoStream(encryptedDataStream, cryptoTransform, CryptoStreamMode.Read))
{
using (var streamReader = new StreamReader(cryptoStream, Encoding.Default))
{
string decryptedText = streamReader.ReadToEnd();
return(Encoding.Default.GetBytes(decryptedText));
}
}
}
