42 lines
1.1 KiB
Rust
42 lines
1.1 KiB
Rust
// Copyright 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#[cfg(test)]
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use subtle::CtOption;
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pub type Block16 = [u8; 16];
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#[inline(always)]
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pub fn xor_block_16(block: &mut Block16, mask: &Block16) {
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for i in 0..16 {
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block[i] ^= mask[i];
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}
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}
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#[cfg(test)]
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pub trait ToOption<T> {
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fn to_option(self) -> Option<T>;
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}
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#[cfg(test)]
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impl<T> ToOption<T> for CtOption<T> {
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fn to_option(self) -> Option<T> {
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if bool::from(self.is_some()) {
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Some(self.unwrap())
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} else {
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None
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}
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}
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}
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