private static Byte[] ReadUtfPacket(IBinaryStream reader)
{
var unknown = reader.ReadUInt32LE(); // 0x000000FF
if (unknown != 0x00000FFU)
{
Console.WriteLine($"Unknown u32 {unknown} != 0x000000FF");
}
var size = reader.ReadInt64LE();
if (size > int.MaxValue)
{
throw new InvalidDataException($"Too large UTF size {size}");
}
var utf = reader.ReadBytesExact((int)size);
if (!utf.Take(4).SequenceEqual(UtfTag))
{
DecryptInPlace(utf);
}
return(utf);
}