static Stream Process(Stream stream, string encryptionKey, CryptoStreamMode mode)
{
// TEMP
return(stream);
// TEMP
if (stream.Length == 0)
{
return(stream);
}
var copy = new MemoryStream();
stream.Position = 0;
stream.CopyTo(copy);
copy.Seek(0, SeekOrigin.Begin);
switch (mode)
{
case CryptoStreamMode.Write:
return(StreamCrypto.Encrypt(encryptionKey, copy));
case CryptoStreamMode.Read:
return(StreamCrypto.Decrypt(encryptionKey, copy));
default:
return(stream);
}
}
protected void InitKey(string password)
{
byte[] passbuf = Encoding.UTF8.GetBytes(password);
// init master key
if (masterKey == null)
{
masterKey = new byte[keyLen];
}
if (masterKey.Length != keyLen)
{
Array.Resize(ref masterKey, keyLen);
}
StreamCrypto.LegacyDeriveKey(passbuf, masterKey, keyLen);
// init session key
sessionKey = new byte[keyLen];
}