static byte[] ReadBlock(ArcView.Frame view, INekoEncryption enc, long offset, out int length)
{
uint hash = view.ReadUInt32 (offset);
length = view.ReadInt32 (offset+4);
// parity check
// if (CalcParity (((NekoEncryption32bit)enc).Parity, (uint)length) != hash)
// throw new InvalidFormatException();
int aligned_size = (length+7) & ~7;
byte[] buffer = new byte[aligned_size];
length = view.Read (offset+8, buffer, 0, (uint)length);
if (0 != hash)
{
enc.Decrypt (hash, buffer, 0, aligned_size);
}
return buffer;
}