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Splitting cmd_xxx() functions in separate files.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-08-13 14:59:27 +02:00
parent 87feed1222
commit e6f082d512
30 changed files with 2703 additions and 2004 deletions
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55
src/hsm/cmd_change_pin.c Normal file
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@@ -0,0 +1,55 @@
/*
* This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
* Copyright (c) 2022 Pol Henarejos.
*
* 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, version 3.
*
* 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 "crypto_utils.h"
#include "sc_hsm.h"
#include "kek.h"
int cmd_change_pin() {
if (P1(apdu) == 0x0) {
if (P2(apdu) == 0x81) {
if (!file_sopin || !file_pin1) {
return SW_FILE_NOT_FOUND();
}
if (!file_pin1->data) {
return SW_REFERENCE_NOT_FOUND();
}
uint8_t pin_len = file_read_uint8(file_get_data(file_pin1));
int r = check_pin(file_pin1, apdu.data, pin_len);
if (r != 0x9000)
return r;
uint8_t mkek[MKEK_SIZE];
r = load_mkek(mkek); //loads the MKEK with old pin
if (r != CCID_OK)
return SW_EXEC_ERROR();
//encrypt MKEK with new pin
hash_multi(apdu.data+pin_len, apdu.nc-pin_len, session_pin);
has_session_pin = true;
r = store_mkek(mkek);
release_mkek(mkek);
if (r != CCID_OK)
return SW_EXEC_ERROR();
uint8_t dhash[33];
dhash[0] = apdu.nc-pin_len;
double_hash_pin(apdu.data+pin_len, apdu.nc-pin_len, dhash+1);
flash_write_data_to_file(file_pin1, dhash, sizeof(dhash));
low_flash_available();
return SW_OK();
}
}
return SW_WRONG_P1P2();
}