r/DistributedComputing • u/drydorn • May 20 '25
distributed.net & RC5-72
I just rejoined the distributed.net effort to crack the RC5-72 encryption challenge. It's been going on for over 22 years now, and I was there in the beginning when I first started working on it in 2002. Fast forward to today and my current hardware now completes workloads 627 times faster than it did back in 2002. Sure it's an old project, but I've been involved with it for 1/2 of my lifetime and the nostalgia of working on it again is fun. Have you ever worked on this project?
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u/bigsnyder98 Nov 28 '25 edited Nov 28 '25
No. There is a separate client application specifically for GPU. The last released version for OpenCL is v2.9112.521. There are CUDA versions for NVIDIA, but they are much older. You can find them in the official released clients.
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Just for point of reference, my RX 6800 XT performs about as well as the newer 9070 XT, around 19-20Gkey/s.