Intel Begins Landing GFNI Support In GCC 8

rubdos Maybe it's usable for other encryption algorithms as well, not just AES.

[rubdos]

So, what's the difference with AES-NI? GFNI sounds like it "just" does the GF[2^8] s-box?

EDIT: looks like it is, https://software.intel.com/sites/def...-reference.pdf (search for GF2P8AFFINEINVQB).

It is however an AVX-512 instruction, so it does it on a 64-vector. Could make AES a lot faster on Intel chips then, maybe they'll beat Ryzen again now in AES.

[phoronix]

Phoronix: Intel Begins Landing GFNI Support In GCC 8

Intel compiler engineers have begun landing "GFNI" support within the GNU Compiler Collection as one of the new ISA extensions not expected until the Icelake processor debut...

http://www.phoronix.com/scan.php?page=news_item&px=Intel-GFNI-GCC-Landing