Md Ismail Šojal 🕷️(@0x0SojalSec):For thirty years the number field sieve was the bottleneck. 🙌 a legendary C implementation, put it on GPUs, and keep 2,048 chips working for ten days. Anthropic engineer Steve Weis factored RSA-896 (896 bits, 270 digits) with Claude’s help porting CADO-NFS and orchestrating that fleet. About 30 GPU-years of work. That is the actual shock.

2026.09.20 18:10

For thirty years the number field sieve was the bottleneck. 🙌 a legendary C implementation, put it on GPUs, and keep 2,048 chips working for ten days. Anthropic engineer Steve Weis factored RSA-896 (896 bits, 270 digits) with Claude’s help porting CADO-NFS and orchestrating that fleet. About 30 GPU-years of work. That is the actual shock.

Steve Weis@sweis

2026.09.20 01:31

636606729769440499166579950236036751749912014371509557713570027508971809534551913252252094954941974952859310861988904737359709200557919 is a factor of RSA-896

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