openbsd/src/lib/libcrypto/bn/arch, branch libressl-v3.8.0 A mirror of https://github.com/libressl/openbsd.git https://git.lua4.win/openbsd/atom?h=libressl-v3.8.0 2023-04-25T04:42:26+00:00 Add endbr64 where needed by inspection. Passes regresson tests. 2023-04-25T04:42:26+00:00 deraadt 2023-04-25T04:42:26+00:00 urn:sha1:f56bc15e44b93e564d434a7d0b5c8f837812aac3 ok jsing, and kind of tb an earlier version Tweak indent and use named registers. 2023-04-17T12:51:09+00:00 jsing 2023-04-17T12:51:09+00:00 urn:sha1:d8dee4a3ad7e9f5d1075d150faf3862f903b10f9 No functional change. Use separate lines instead of semicolons. 2023-02-25T15:39:40+00:00 bcook 2023-02-25T15:39:40+00:00 urn:sha1:090d81850efecfea5c1d751b14720459c4ca3fc9 macOS aarch64 assembly dialect treats ; as comment instead of a newline ok tb@, jsing@ Rework bn_add()/bn_sub() to operate on word arrays. 2023-02-22T05:46:37+00:00 jsing 2023-02-22T05:46:37+00:00 urn:sha1:b78cccc526d31cefe3af77cef6ddab0981e8a45b Rather than working on BIGNUMs, change bn_add()/bn_sub() to operate on word arrays that potentially differ in length. This matches the behaviour of s2n-bignum's bignum_add() and bignum_sub(). ok tb@ Provide optimised versions of bn_addw() and bn_subw() for aarch64. 2023-02-17T05:46:57+00:00 jsing 2023-02-17T05:46:57+00:00 urn:sha1:e8f247b8ef41ae77dd7ee9d5bc450d4e9c4af4f5 Enable s2n-bignum word_clz() on amd64. 2023-02-16T11:13:05+00:00 jsing 2023-02-16T11:13:05+00:00 urn:sha1:02f91f3325f965a313f0cffe5053a084d05a84ea The BN_num_bits_word() function is a hot path, being called more than 80 million times during a libcrypto regress run. The word_clz() implementation uses five instructions to do the same as the generic code that uses more than 60 instructions. Discussed with tb@ Change include from _internal_s2n_bignum.h to s2n_bignum_internal.h. 2023-02-16T10:54:20+00:00 jsing 2023-02-16T10:54:20+00:00 urn:sha1:95c0ed9385b76741de79e6270c2ff6c36a289b02 Include the ISC license from s2n-bignum's LICENSE file. 2023-02-16T10:53:18+00:00 jsing 2023-02-16T10:53:18+00:00 urn:sha1:d35b9335195e893a1f5798a0928ff46db9c39e43 Bring in word_clz.S from s2n-bignum for amd64. 2023-02-16T10:51:58+00:00 jsing 2023-02-16T10:51:58+00:00 urn:sha1:f483fe7409c6e019825355a40d8dca761bb5d6d3 Rename bn_umul_hilo() to bn_mulw(). 2023-02-16T10:41:03+00:00 jsing 2023-02-16T10:41:03+00:00 urn:sha1:b11f50c06cb0a98a91ab4cbfb49715c95ee07486 This keeps the naming consistent with the other bignum primitives that have been recently introduced. Also, use 1/0 intead of h/l (e.g. a1 instead of ah), as this keeps consistency with other primitives and allows for naming that works with double word, triple word and quadruple word inputs/outputs. Discussed with tb@