PoC or GTFO, Volume 2

Bit-flip, or defeat bit-copiers with this one weird trick

Deeply technical content follows. Prepare yourself!

Let’s take this simple sentence (sorry, but it’s the best example that I could create at the time):

ITHASGOTTOBETHISLANDAHEAD

And split it according to some potential word boundaries:

IT HAS GOT TO BE THIS LAND AHEAD

Now we skip a bit:

OTTO BETH ISLAND AHEAD

A bit more:

TO BETH ISLAND AHEAD

A bit more still:

BET HIS L AND A HEAD

Okay, that last one doesn’t make much sense, but I wanted a sentence which could be read differently, depending on where you started reading, as opposed to a series of arbitrary overlapping words. In any case, it’s clear that depending on where you start reading, you can get vastly different results. Something ...