3 ms·
Do such hardware enhancements help with ECC performance or does ECC on other fields?
by k__ 4y ago
Do such hardware enhancements help with ECC performance or does ECC on other fields?
- nullc 4y agoDo you mean Error Correcting Codes or Elliptic Curve Cryptography? In the former, yes, in the latter mostly* no-- as characteristic-2 field elliptic curve crypto isn't common these days due to a weaker and more complicated security story. *Mostly but not entirely, e.g. https://eprint.iacr.org/2022/1325 https://eprint.iacr.org/2022/1325
- k__ 4y agoI meant the latter, thanks.
- throwaway81523 4y agoElliptic curve cryptography is usually done with prime fields since there have been too many breaks against systems using binary fields, the ones that these cpu instructions operate on. Binary field arithmetic, as people have mentioned, are used widely for error correcting codes, and to a lesser extent in cryptography for modes like AES-GCM and inside of AES itself.