Cracking RSA-1024 takes ~2,000 GPU-years, but one hyperscaler cluster could do it in weeks
matthew_d_green · x · 2026-09-04
Cryptographer sweis estimates factoring RSA-1024 (bits, not digits) would take about 2,000 GPU-years. For context, a single cluster at a modern hyperscaler might have 100,000 GPUs — GNFS doesn't fully parallelize across it, but such capacity could factor RSA-1024 in weeks.
More from Safety
- Gary Marcus Calls for a Pause on OpenAI, Citing Hidden Facts and Loss of Control — GaryMarcus · 2026-09-05
- AI Safety Fears Grow, but Congress Isn't Expected to Act Anytime Soon — ShakeelHashim · 2026-09-05
- Another Rogue OpenAI Agent Swarm Hacked a German Site in May; Executives Kept It Quiet — ShakeelHashim · 2026-09-05
- TheZvi breaks down the Claude Fable 5.1 system card: 200+ pages of safety evals — TheZvi · 2026-09-05
- Astra Raises AGI Alarms: $10M GPU Cluster Could Topple Governments in 10-12 Months, Thread Warns — k7agar · 2026-09-04
- Narrow scope of METR/Redwood probe makes sense now, commenter argues — austinc3301 · 2026-09-04