CVSROOT: /cvs
Module name: src
Changes by: js...@cvs.openbsd.org 2023/04/19 04:51:22
Modified files:
lib/libcrypto/bn: bn.h bn_lib.c bn_local.h bn_mul.c bn_sqr.c
Log message:
unifdef BN_RECURSION
This removes a bunch of incomplete and scary code, which potentially leaks
secrets and is not constant time. A performance gain is achieved on arm64
for sizes that we care about, while a minimal decrease in performance is
noted for larger sizes on some other platforms.
While we will potentially reimplement Karatsuba (or Toom-Cook) at a later
date, it will be easier and safer to do it from a clean slate.
ok tb@
