public static void DecryptBuffer(byte[] buff, int length, long position)
{
if (position == 0L && length > 3)
{
VideoEncryption.XorBuffer(buff, length, position);
if (buff[0] == (byte)0 && buff[1] == (byte)0 && buff[2] == (byte)0)
{
VideoEncryption.useV1 = true;
}
else
{
VideoEncryption.XorBuffer(buff, length, position);
VideoEncryption.XorBufferV2(buff, length, position);
if (buff[0] == (byte)0 && buff[1] == (byte)0)
{
int num = (int)buff[2];
}
VideoEncryption.useV1 = false;
}
}
else if (VideoEncryption.useV1)
{
VideoEncryption.XorBuffer(buff, length, position);
}
else
{
VideoEncryption.XorBufferV2(buff, length, position);
}
}
public static void EncryptBuffer(byte[] buff, int length, long position)
{
VideoEncryption.XorBufferV2(buff, length, position);
}
