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Fediverse user retr0id creates an image that contains its own MD5 within a PNG (hashquine)

https://rdrama.cc/notice/ANqlviR2K2ZKO7FeWe

Might be the coolest shit I've seen all day, holy frick.

Tested and confirmed, who would lie on the internet anyway?

![](/images/16640836129304848.webp)

21
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What's an MD5

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MD5 is an algorithm (formula) that produces a kind of random string from an input. People figured out how to decode it on sight (to find the input) so we just use it to generate ids instead of trying to secure data with it

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Can you explain this for those of us who aren't so neurodivergent?

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I just spent several minutes trying and realized it made no sense you might need neurodivergency. Trying again.

Basically there's mathematical functions called "hash functions" that slice and chop up data to make a number called the "hash" of the data. This guy managed to make a png that displays a number and when the png is hashed the output hash value is that number. You're not supposed to be able to figure out tricks to get things like this through the slicing and chopping process but this is with a boomer hash function called MD5 that turbo neurodivergent computer security people found all sorts of problems with.

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No because I have no idea really..

Think it was simple reverse engineering at the root though, undo the math and then through in a bunch of values, run a script for several hours which tries to get the result you need

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how much ram is too much ram

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Every day Im more glad I flunked out of CS

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Engineers are shit at explaining concepts, uni lecturers are even worse because they're unaccountable and out of touch

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a 444x666 pixel image with 1-bit colour. The background is black, and the foreground colour is a slightly pinkish red. At the top it says "$ md5sum hashquine_by_retr0id.png". Left of centre, there is a dithered image of a dragon eating its own tail, in a vertical figure-8 shape. Down the righthand side of the image, the MD5 is displayed in a 7-segment font.

Who writes these?

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(in thread)

Here's a GIF from past theory results

Links required, since rDrama formats to compressed webp

https://shells.mp3hen.ccc.de/~spq/md5.gif

![](/images/16640837317906985.webp)

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worker bees are the ultimate simp they spend their whole life donating pollen for the queen bee that probably doesn't even acknowledge their existence(she's literally their queen) and ensure their queen's children and larvae remain safe at all times. all while having 0 chance as they are literally being unable to reproduce these people donating $100 a month to pokimane are nothing compared to the omegasimp known as the worker bee

Snapshots:

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