mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-28 21:26:14 +00:00
33 lines
1.1 KiB
C++
33 lines
1.1 KiB
C++
|
/*
|
||
|
|
* Copyright (c) Atmosphère-NX
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms and conditions of the GNU General Public License,
|
||
|
|
* version 2, as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
||
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
|
|
* more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
#include <vapours.hpp>
|
||
|
|
|
||
|
|
namespace ams::crypto {
|
||
|
|
|
||
|
|
bool IsSameBytes(const void *lhs, const void *rhs, size_t size) {
|
||
|
|
/* TODO: Should the generic impl be constant time? */
|
||
|
|
volatile u8 diff = 0;
|
||
|
|
|
||
|
|
const volatile u8 *lhs8 = static_cast<const volatile u8 *>(lhs);
|
||
|
|
const volatile u8 *rhs8 = static_cast<const volatile u8 *>(rhs);
|
||
|
|
for (size_t i = 0; i < size; ++i) {
|
||
|
|
diff = diff | (lhs8[i] ^ rhs8[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
return diff == 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|