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refulgentis
on Feb 23, 2017
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Announcing the first SHA-1 collision
One can insert arbitrary data into JPGs. Given that, the researchers embedded a JPG in a PDF, and manipulated the arbitrary data until it resulted in a collision.
jwilk
on Feb 23, 2017
[–]
Sure, but you don't end up with two images that differ only in background of top half by accident...
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