] Based on a detailed design and simulation (but without an ] actual implementation), we believe that the NFS sieving ] step for 1024-bit RSA keys can be completed in less than ] a year on a $10M TWIRL machine, and that the NFS sieving ] step for 512-bit RSA keys can be completed in less than ] 10 minutes on a $10K TWIRL machine. Time to up those key sizes again. |