diff options
| author | Joel Sing <jsing@cvs.openbsd.org> | 2024-11-16 15:31:37 +0000 |
|---|---|---|
| committer | Joel Sing <jsing@cvs.openbsd.org> | 2024-11-16 15:31:37 +0000 |
| commit | bbab9dc78c82fe8745bf14259991978e1b6237dc (patch) | |
| tree | cea9e5c892fde550461786d717f1ecbab26ba96a /lib/libcrypto/sha/sha256_amd64.c | |
| parent | 49a5f51943c3561a0a5176f1e4c9b98fd1a65fca (diff) | |
Provide a SHA-256 assembly implementation for amd64 using SHA-NI.
This provides a SHA-256 assembly implementation for amd64, which uses
the Intel SHA Extensions (aka SHA New Instructions or SHA-NI). This
provides a 3-5x performance gain on some Intel CPUs and many AMD CPUs.
ok tb@
Diffstat (limited to 'lib/libcrypto/sha/sha256_amd64.c')
| -rw-r--r-- | lib/libcrypto/sha/sha256_amd64.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/libcrypto/sha/sha256_amd64.c b/lib/libcrypto/sha/sha256_amd64.c index f7531b340f3..6c5d3e897f1 100644 --- a/lib/libcrypto/sha/sha256_amd64.c +++ b/lib/libcrypto/sha/sha256_amd64.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sha256_amd64.c,v 1.1 2024/11/08 15:09:48 jsing Exp $ */ +/* $OpenBSD: sha256_amd64.c,v 1.2 2024/11/16 15:31:36 jsing Exp $ */ /* * Copyright (c) 2024 Joel Sing <jsing@openbsd.org> * @@ -17,10 +17,18 @@ #include <openssl/sha.h> +#include "crypto_arch.h" + void sha256_block_generic(SHA256_CTX *ctx, const void *in, size_t num); +void sha256_block_shani(SHA256_CTX *ctx, const void *in, size_t num); void sha256_block_data_order(SHA256_CTX *ctx, const void *in, size_t num) { + if ((crypto_cpu_caps_amd64 & CRYPTO_CPU_CAPS_AMD64_SHA) != 0) { + sha256_block_shani(ctx, in, num); + return; + } + sha256_block_generic(ctx, in, num); } |