Ryan Castellucci :nonbinary_flag:@MITREsteve The attack is General Number Field Seive, not brute force, and it does not scale like that. To crack a 512 bit key requires about ⅑ of a core year.
A 829 bit key was cracked in 2020 in about 2700 core years.
https://listserv.nodak.edu/cgi-bin/wa.exe?A2=NMBRTHRY;dc42ccd1.2002
A 1024 bit RSA key could be cracked in months, for on the order of a million dollars.
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