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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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54
src/hsm/cmd_external_authenticate.c Normal file
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@@ -0,0 +1,54 @@
/*
* 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 "cvc.h"
#include "files.h"
extern file_t *ef_puk_aut;
extern uint8_t challenge[256];
extern uint8_t challenge_len;
int cmd_external_authenticate() {
if (P1(apdu) != 0x0 || P2(apdu) != 0x0)
return SW_INCORRECT_P1P2();
if (ef_puk_aut == NULL)
return SW_REFERENCE_NOT_FOUND();
if (apdu.nc == 0)
return SW_WRONG_LENGTH();
file_t *ef_puk = search_by_fid(EF_PUKAUT, NULL, SPECIFY_EF);
if (!ef_puk || !ef_puk->data || file_get_size(ef_puk) == 0)
return SW_FILE_NOT_FOUND();
uint8_t *puk_data = file_get_data(ef_puk);
uint8_t *input = (uint8_t *)calloc(dev_name_len+challenge_len, sizeof(uint8_t)), hash[32];
memcpy(input, dev_name, dev_name_len);
memcpy(input+dev_name_len, challenge, challenge_len);
hash256(input, dev_name_len+challenge_len, hash);
int r = puk_verify(apdu.data, apdu.nc, hash, 32, file_get_data(ef_puk_aut), file_get_size(ef_puk_aut));
free(input);
if (r != 0)
return SW_CONDITIONS_NOT_SATISFIED();
puk_status[ef_puk_aut->fid & (MAX_PUK-1)] = 1;
uint8_t auts = 0;
for (int i = 0; i < puk_data[0]; i++)
auts += puk_status[i];
if (auts >= puk_data[2]) {
isUserAuthenticated = true;
}
return SW_OK();
}