/// <summary>
/// File Decryptor
/// </summary>
/// <param name="targetStream"></param>
/// <param name="criptoEngine"></param>
/// <param name="sourceData"></param>
public static void Decrypt(Stream targetStream, ref Byte[] fileEncriptedData, int startPosition, byte[] key, byte[] iv)
{
// Create a Decryptor
using (ChaCha20Stream cc = new ChaCha20Stream(targetStream, true, key, iv))
{
cc.Write(fileEncriptedData, startPosition, fileEncriptedData.Length - startPosition);
cc.Flush();
}
}
/// <summary>
/// File Encryptor
/// </summary>
/// <param name="targetStream"></param>
/// <param name="criptoEngine"></param>
/// <param name="sourceData"></param>
public static void Encrypt(Stream targetStream, ref byte[] sourceData, ref byte[] key, ref byte[] iv)
{
// Create a Crypto Stream
using (ChaCha20Stream cc = new ChaCha20Stream(targetStream, true, key, iv))
{
cc.Write(sourceData, 0, sourceData.Length);
cc.Flush();
}
}