openbsd/src/lib/libcrypto/des/des_fcrypt.c, branch OPENBSD_7_9_BASEA mirror of https://github.com/libressl/openbsd.git
https://git.lua4.win/openbsd/atom?h=OPENBSD_7_9_BASE2025-07-27T13:26:24+00:00Rework DES encryption/decryption loops.2025-07-27T13:26:24+00:00jsing2025-07-27T13:26:24+00:00urn:sha1:305717a23aaf1a0716fdfeb5149ac4a9b8e3393a
Use a slightly unrolled loop, which gets us half way between DES_UNROLL and
no DES_UNROLL. While we're not terribly concerned by DES performance, this
gets us a small gain on aarch64 and a small loss on arm. But above all, we
end up with simpler code.
ok tb@
Make fcrypt_body() static and remove prototype.2024-08-31T16:22:18+00:00jsing2024-08-31T16:22:18+00:00urn:sha1:494e715bd6f1e6d40536f2073836a19c9804250fUnifdef DES_PTR, DES_RISC1 and DES_RISC2.2024-08-31T16:17:13+00:00jsing2024-08-31T16:17:13+00:00urn:sha1:b4a7118880d144942505fcaf652b145d16c4066e
These are all go fast knobs that convolute the code and can be dangerous.
Lets presume that we have a modern and somewhat capable C compiler instead.
ok tb@
Unifdef OPENBSD_DES_ASM.2024-08-31T16:04:22+00:00jsing2024-08-31T16:04:22+00:00urn:sha1:664cc25b60211c31da224b8018b7df63055631ed
There are no assembly implementations now.
ok tb@
Combine DES code into a smaller set of files.2024-08-31T15:56:09+00:00jsing2024-08-31T15:56:09+00:00urn:sha1:8997a568f0d9f3fd7340dcdbf5104effe54942f0
Discussed with tb@