/src/spdm-rs/external/ring/src/aead/gcm/clmulavxmovbe.rs
Line | Count | Source (jump to first uncovered line) |
1 | | // Copyright 2018-2024 Brian Smith. |
2 | | // |
3 | | // Permission to use, copy, modify, and/or distribute this software for any |
4 | | // purpose with or without fee is hereby granted, provided that the above |
5 | | // copyright notice and this permission notice appear in all copies. |
6 | | // |
7 | | // THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
8 | | // WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
9 | | // MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
10 | | // SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
11 | | // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
12 | | // OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
13 | | // CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
14 | | |
15 | | #![cfg(target_arch = "x86_64")] |
16 | | |
17 | | use super::{HTable, KeyValue, UpdateBlock, UpdateBlocks, Xi, BLOCK_LEN}; |
18 | | use crate::{cpu::intel, polyfill::slice::AsChunks}; |
19 | | |
20 | | #[derive(Clone)] |
21 | | pub struct Key { |
22 | | h_table: HTable, |
23 | | } |
24 | | |
25 | | impl Key { |
26 | | #[inline(never)] |
27 | 0 | pub(in super::super) fn new( |
28 | 0 | value: KeyValue, |
29 | 0 | _required_cpu_features: (intel::ClMul, intel::Avx, intel::Movbe), |
30 | 0 | ) -> Self { |
31 | 0 | Self { |
32 | 0 | h_table: unsafe { htable_new!(gcm_init_avx, value) }, |
33 | 0 | } |
34 | 0 | } |
35 | | |
36 | 0 | pub(super) fn inner(&self) -> &HTable { |
37 | 0 | &self.h_table |
38 | 0 | } |
39 | | } |
40 | | |
41 | | impl UpdateBlock for Key { |
42 | 0 | fn update_block(&self, xi: &mut Xi, a: [u8; BLOCK_LEN]) { |
43 | 0 | self.update_blocks(xi, (&a).into()) |
44 | 0 | } |
45 | | } |
46 | | |
47 | | impl UpdateBlocks for Key { |
48 | 0 | fn update_blocks(&self, xi: &mut Xi, input: AsChunks<u8, BLOCK_LEN>) { |
49 | 0 | unsafe { ghash!(gcm_ghash_avx, xi, self.inner(), input) } |
50 | 0 | } |
51 | | } |