feat: add karatsuba multiplication (#5719)

* feat: add karatsuba multiplication

* fix: fallback size

* fix: big integer instances

---------

Co-authored-by: Alex Klymenko <alexanderklmn@gmail.com>

Saahil Mahato committed 1y ago

1c978c52f1252fdaea68e01cb056ffb396589190

Parent: 0ca4398

Committed by GitHub <noreply@github.com> on 10/11/2024, 2:13:51 PM