Generating Fast MD5 Collisions With ATI Video Cards

An anonymous reader writes "Yesterday at Black Hat USA 2009, a talk entitled MD5 Chosen-Prefix Collisions on GPUs (whitepaper) (Both PDFs) presented an implementation written in assembly language for ATI video cards that achieves 1.6 billion MD5 hash/sec, or 2.2 billion MD5 hash/sec with reversing, on an ATI Radeon HD 4850 X2. This is faster than the much-publicized 1.4-1.9 billion hash/sec figure that was supposedly reached on a PlayStation 3 by Nick Breese at Black Hat Europe 2008 (he later noticed an error in his benchmarking tool). Compared to the cluster of 215 PlayStation 3s that was used to create a rogue CA in December 2008, Marc Bevand claimed a cluster of 12 machines with 24 video cards would be a bit faster, consume 5 times less power, and be 10 times cheaper."

Re:first

[Yvan256]

Generated with the help of an ATI card, I assume.

Re:Basic English skills?

[eclectro]

consume 5 times less power, and be 10 times cheaper

Actually I'm more concerned about the rise of the eco-cracker. The "green cracker" who wants to have a low carbon footprint and crack into your bank account inexpensively.

Re:Easier Way

[kestasjk]

CAs are incorruptible, we all know this.

Todays new: CPUs processes data!

[myforwik]

Why is this news? This is worse than distributed.net brute forcing 56bit keys. Yes MD5 is crap, we don't need an example of everytime someone hooks up some new processors to break it.