private ICryptoTransform GetDecryptor(SymmetricAlgorithm algorithm)
{
byte[] ivBytes = IV.ToByteArray();
byte[] keyBytes = GetPasswordBytes();
return(algorithm.CreateDecryptor(keyBytes, ivBytes));
}
public IBuffer GetBufferWithoutHMAC()
{
bool usesPassword = (Options & (byte)1) == (byte)1;
using (var ms = new MemoryStream((int)(HEADER_LENGTH + CipherText.Length)))
using (var writer = new BinaryWriter(ms))
{
writer.Write(Version);
writer.Write(Options);
if (usesPassword)
{
writer.Write(EncryptionSalt.ToByteArray());
writer.Write(HMACSalt.ToByteArray());
}
writer.Write(IV.ToByteArray());
writer.Write(CipherText.ToByteArray());
return(ms.ToArray().ToBuffer());
}
}