4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
23 * this file and link it with other files to produce an executable, this
24 * file does not by itself cause the resulting executable to be covered by
25 * the GNU General Public License. This exception does not however
26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
33 * \brief Generic utilities.
34 * \author Giovanni Bajo <rasky@develer.com>
39 #include <sec/kdf/pbkdf2.h>
40 #include <sec/mac/hmac.h>
41 #include <sec/hash/sha1.h>
43 // FIXME: this macros should be generated by the wizard
44 #define BERTOS_PROJECT_NAME "bertos_project"
46 #define SALT (BERTOS_PROJECT_NAME "P2K_SALT")
48 void password2key(const char *pwd, size_t pwd_len,
49 uint8_t *key, size_t key_len)
51 Kdf *kdf = PBKDF2_stackinit(hmac_stackinit(SHA1_stackinit()));
53 kdf_begin(kdf, pwd, pwd_len, (uint8_t*)SALT, sizeof(SALT));
54 kdf_read(kdf, key, key_len);
56 // FIXME: how to purge the stack?