From be355cd78a5aac7d11c1b9234254537b3c55f2d5 Mon Sep 17 00:00:00 2001 From: Kevin Redon Date: Sat, 2 Nov 2013 18:11:01 +0100 Subject: implement COMP128 version 2 and 3 A3/A8 algorithm simple copy into C from reversed code from www.hackingprojects.net --- src/gsm/auth_comp128v23.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 src/gsm/auth_comp128v23.c (limited to 'src/gsm/auth_comp128v23.c') diff --git a/src/gsm/auth_comp128v23.c b/src/gsm/auth_comp128v23.c new file mode 100644 index 00000000..36383d93 --- /dev/null +++ b/src/gsm/auth_comp128v23.c @@ -0,0 +1,68 @@ +/* registers COMP128 version 2 and 3 A3/A8 algorithms for the + * GSM/GPRS/3G authentication core infrastructure + * + */ + +/* (C) 2010-2011 by Harald Welte + * (C) 2013 by Kévin Redon + * + * All Rights Reserved + * + * 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 2 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, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +#include +#include + +static int c128v2_gen_vec(struct osmo_auth_vector *vec, + struct osmo_sub_auth_data *aud, + const uint8_t *_rand) +{ + comp128v23(aud->u.gsm.ki, _rand, 2, vec->sres, vec->kc); + vec->auth_types = OSMO_AUTH_TYPE_GSM; + + return 0; +} + +static struct osmo_auth_impl c128v2_alg = { + .algo = OSMO_AUTH_ALG_COMP128v2, + .name = "COMP128v2 (libosmogsm built-in)", + .priority = 1000, + .gen_vec = &c128v2_gen_vec, +}; + +static int c128v3_gen_vec(struct osmo_auth_vector *vec, + struct osmo_sub_auth_data *aud, + const uint8_t *_rand) +{ + comp128v23(aud->u.gsm.ki, _rand, 3, vec->sres, vec->kc); + vec->auth_types = OSMO_AUTH_TYPE_GSM; + + return 0; +} + +static struct osmo_auth_impl c128v3_alg = { + .algo = OSMO_AUTH_ALG_COMP128v3, + .name = "COMP128v3 (libosmogsm built-in)", + .priority = 1000, + .gen_vec = &c128v3_gen_vec, +}; + +static __attribute__((constructor)) void on_dso_load_c128(void) +{ + osmo_auth_register(&c128v2_alg); + osmo_auth_register(&c128v3_alg); +} -- cgit v1.2.3