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(3 replies, posted in Guests & account requests)

An MD5 hash is a string given by a (although fairly broken) hash function, given some input bitstring. Unfortunately, since hash functions are not one-to-one, it is quite difficult to reconstruct the source data (ISO) from just the hash, but with the magic of mathematics, we can, theoretically, convert an MD5 hash to a valid, playable ISO, via the axiom of choice! Allow me to explain.

Let H be our MD5 hash that we want to convert to a playable ISO, and M a Turing machine that accepts the set of bitstrings B that consists of playable ISOs for some fixed system S. We can simply assert the existence of such a machine by the axiom of choice (AC), but we can do even better: we can construct such a machine simply by looking at the code of any emulator for S!

Let MD5 be the MD5 hash function that maps some bitstring b to a hash h

Then, let B (bold and italics are different variables!) be the set of all bitstrings. We simply need to refine this set such that for all bitstrings b in B, MD5(b) = H. Lets call such a set H.

We're basically done at this point. All you have to do is find a bitstring in H that M accepts, and you have your ISO!

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(1 replies, posted in General discussion)

Is there a reason why *.redump.org is still served only under HTTP? Even just the option would be nice, since currently HTTPS traffic isn't even served.