alt Hacker NewsIt’s not quite a doubling per bit, which is why RSA keys are relatively large compared to similar-strength ECDSA keys, for example.
Steve Weis, who has been doing RSA factoring on some large GPU clusters, estimates factoring 1024-bit RSA would take about 2000 GPU-years, which is well within the range of anyone with a serious budget.
Replies
throwawayk7h • today at 2:05 AM
out of curiosity, how long would 2048-bit RSA take to factor?
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Yeah, 2000 years sounds like a lot till you do the math. Apparently astra was trained on 100k Blackwell gpu’s. So just over 7 days to crack 1028-bit rsa on that cluster…