byte[] DecryptIndex(ArcView idx)
{
int idx_size = (int)idx.MaxOffset - 4;
byte[] output = new byte[idx_size];
using (var view = idx.CreateViewAccessor(0, (uint)idx.MaxOffset))
unsafe
{
var rng = new CRuntimeRandomGenerator();
rng.SRand(view.ReadInt32(idx_size));
byte *ptr = view.GetPointer(0);
try
{
for (int i = 0; i < idx_size; ++i)
{
output[i] = (byte)(ptr[i] ^ IndexKey[rng.Rand() % IndexKey.Length]);
}
return(output);
}
finally
{
view.SafeMemoryMappedViewHandle.ReleasePointer();
}
}
}
