20 Jan
2016
20 Jan
'16
1:56 p.m.
More info on microcode updates can be found in https://www.dcddcc.com/pubs/paper_microcode.pdf Salient points: - Microcode is entirely undocumented. - Microcode is indeed encrypted, though there seem to be loopholes. - Microcode update times can take up to 2 million CPU cyles. - Microcode updates could be an unexpected attack vector. Maybe. Regards, Jo