openbsd/src/lib/libcrypto/bn/arch/amd64, branch OPENBSD_7_8_BASEA mirror of https://github.com/libressl/openbsd.git
https://git.lua4.win/openbsd/atom?h=OPENBSD_7_8_BASE2025-09-01T15:33:23+00:00Constify bn_mul_words().2025-09-01T15:33:23+00:00jsing2025-09-01T15:33:23+00:00urn:sha1:edd4db8b24106490f82c1a694d4e2b35afe9c6cbProvide bn_mul_words() on amd64.2025-09-01T15:15:44+00:00jsing2025-09-01T15:15:44+00:00urn:sha1:b788687c68f1df8051cd54ab960dd9f91c4671d8
This uses s2n-bignum's bignum_mul() and provides significant performance
gains for a range of multiplication sizes.
Reorder functions since they've been renamed.2025-08-31T09:34:51+00:00jsing2025-08-31T09:34:51+00:00urn:sha1:db246afaad7e4bbe59bd2805c624374b2f5f8f7dRename bn_mul_words()/bn_mul_add_words().2025-08-30T07:54:27+00:00jsing2025-08-30T07:54:27+00:00urn:sha1:694b88dc8ad458db9997e90128806a423fec09db
Most bn_.*_words() functions operate on two word arrays, however
bn_mul_words() and bn_mul_add_words() operate on one word array and
multiply by a single word. Rename these to bn_mulw_words() and
bn_mulw_add_words() to reflect this, following naming scheme that we use
for primitives.
This frees up bn_mul_words() to actually be used for multiplying two word
arrays. Rename bn_mul_normal() to bn_mul_words(), which will then become
one of the possible assembly integration points.
ok tb@
Rework bn_sqr() to use bn_sqr_words().2025-08-30T07:16:06+00:00jsing2025-08-30T07:16:06+00:00urn:sha1:3adccdb355e2f651255227b11a6324730cb85e48
Rework some of the squaring code so that it calls bn_sqr_words() and use
this as the integration point for assembly. Convert bn_sqr_normal() to
bn_sqr_words(), which is then used on architectures that do not provide
their own version.
This means that we resume using the assembly version of bn_sqr_words() on
i386, mips64 and powerpc, which can provide considerable performance gains.
ok tb@
Use faster versions of bignum_{mul,sqr}_{4_8,6_12,8_16}() if possible.2025-08-14T15:29:17+00:00jsing2025-08-14T15:29:17+00:00urn:sha1:9bef27f78e41e8026f1d588e4e36e385061f3deb
If ADX instructions are available, use the non-_alt version of s2n-bignum's
bignum_{mul,sqr}_{4_8,6_12,8_16}(), which are faster than the _alt
non-ADX versions.
ok tb@
Provide amd64 specific versions of bn_mul_comba6() and bn_sqr_comba6().2025-08-14T15:22:54+00:00jsing2025-08-14T15:22:54+00:00urn:sha1:409f4a640898671720faa6bd2e7a6111335968c8
These use s2n-bignum's bignum_mul_6_12_alt() and bignum_sqr_6_12_alt()
functions.
ok tb@
Provide bn_mod_add_words() and bn_mod_sub_words() on amd64.2025-08-14T15:17:19+00:00jsing2025-08-14T15:17:19+00:00urn:sha1:278945f44c7c245ab97c000f622ed5ad243818a1
These use s2n-bignum's bignum_modadd() and bignum_modsub() routines.
ok tb@
Revise include to match the name that we use.2025-08-12T10:23:40+00:00jsing2025-08-12T10:23:40+00:00urn:sha1:9daf30ef7ed52e5e01eb3ffbcf1ddc212007ba78Replace SPDX-License-Identifier with actual license.2025-08-12T10:22:13+00:00jsing2025-08-12T10:22:13+00:00urn:sha1:7e34560faf4e16d6e3b23107fcf71ee8746112f2