diff options
| author | Yawning Angel <yawning@schwanenlied.me> | 2024-07-16 20:03:20 +0900 |
|---|---|---|
| committer | Yawning Angel <yawning@schwanenlied.me> | 2024-08-10 18:32:37 +0900 |
| commit | dfc4df9807b37477c0bc03e6f628039254681390 (patch) | |
| tree | d3af582b62c43f1f2ae4b356a27af9b435bfdb96 /core/crypto | |
| parent | b9293334cabdf3ae1c35db94c75fd5d1ca709149 (diff) | |
core/crypto/_aes/hw_intel: Use a constant for the PSHUFB indicies
Diffstat (limited to 'core/crypto')
| -rw-r--r-- | core/crypto/_aes/hw_intel/api.odin | 2 | ||||
| -rw-r--r-- | core/crypto/_aes/hw_intel/ghash.odin | 8 |
2 files changed, 3 insertions, 7 deletions
diff --git a/core/crypto/_aes/hw_intel/api.odin b/core/crypto/_aes/hw_intel/api.odin index 5cb5a68bb..1796bb093 100644 --- a/core/crypto/_aes/hw_intel/api.odin +++ b/core/crypto/_aes/hw_intel/api.odin @@ -3,7 +3,7 @@ package aes_hw_intel import "core:sys/info" -// is_supporte returns true iff hardware accelerated AES +// is_supported returns true iff hardware accelerated AES // is supported. is_supported :: proc "contextless" () -> bool { features, ok := info.cpu_features.? diff --git a/core/crypto/_aes/hw_intel/ghash.odin b/core/crypto/_aes/hw_intel/ghash.odin index 9a5208523..39351393f 100644 --- a/core/crypto/_aes/hw_intel/ghash.odin +++ b/core/crypto/_aes/hw_intel/ghash.odin @@ -25,7 +25,6 @@ package aes_hw_intel import "base:intrinsics" import "core:crypto/_aes" -import "core:simd" import "core:simd/x86" @(private = "file") @@ -58,14 +57,11 @@ GHASH_STRIDE_BYTES_HW :: GHASH_STRIDE_HW * _aes.GHASH_BLOCK_SIZE // chunks. We number chunks from 0 to 3 in left to right order. @(private = "file") -byteswap_index := transmute(x86.__m128i)simd.i8x16{ - // Note: simd.i8x16 is reverse order from x86._mm_set_epi8. - 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, -} +_BYTESWAP_INDEX: x86.__m128i : { 0x08090a0b0c0d0e0f, 0x0001020304050607 } @(private = "file", require_results, enable_target_feature = "sse2,ssse3") byteswap :: #force_inline proc "contextless" (x: x86.__m128i) -> x86.__m128i { - return x86._mm_shuffle_epi8(x, byteswap_index) + return x86._mm_shuffle_epi8(x, _BYTESWAP_INDEX) } // From a 128-bit value kw, compute kx as the XOR of the two 64-bit |