mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-29 17:48:10 +00:00
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
/*
|
|
* This file is part of the Trezor project, https://trezor.io/
|
|
*
|
|
* Copyright (c) SatoshiLabs
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that 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 "time_estimate.h"
|
|
|
|
// The number of CPU cycles required to execute one iteration of PBKDF2.
|
|
#define PIN_PBKDF2_CYCLES_PER_ITER 11100
|
|
|
|
// MCU clock 120 MHz
|
|
#define MCU_CLOCK 120000000
|
|
|
|
uint32_t time_estimate_pbkdf2_ms(uint32_t iterations) {
|
|
#if EMULATOR
|
|
(void)iterations;
|
|
return 500;
|
|
#else
|
|
return PIN_PBKDF2_CYCLES_PER_ITER * iterations / (MCU_CLOCK / 1000);
|
|
#endif
|
|
}
|