I just read through the Defcon 2017 session list. Are you referring to this talk?
How we created the first SHA-1 collision and what it means for hash security
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I just read through the Defcon 2017 session list. Are you referring to this talk?
How we created the first SHA-1 collision and what it means for hash security
Possibly? I remember the talk being a bit different in the way it was advertised on reddit , but that could have just been fear mongering.