How we created the first SHA-1 collision and what it means for hash security - Defcon 25

Recording of my Defcon 25 talk about SHA-1 More information: https://www.elie.net/sha1 In this talk, we recount how we found the first SHA-1 collision. We d...

Elie Bursztein•9.2K views•37:17

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Recording of my Defcon 25 talk about SHA-1 More information: https://www.elie.net/sha1 In this talk, we recount how we found the first SHA-1 collision. We delve into the challenges we faced from developing a meaningful payload, to scaling the computation to that massive scale, to solving unexpected cryptanalytic challenges that occurred during this endeavor.

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Nov 30, 2017

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