diff options
| -rw-r--r-- | tests/auth/milenage_test.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/tests/auth/milenage_test.c b/tests/auth/milenage_test.c index b4c2c79b..2bd3cf20 100644 --- a/tests/auth/milenage_test.c +++ b/tests/auth/milenage_test.c @@ -63,6 +63,15 @@ static int opc_test(const struct osmo_sub_auth_data *aud) return rc; } +#define RECALC_AUTS 0 +#if RECALC_AUTS +typedef uint8_t u8; +extern int milenage_f2345(const u8 *opc, const u8 *k, const u8 *_rand, + u8 *res, u8 *ck, u8 *ik, u8 *ak, u8 *akstar); +extern int milenage_f1(const u8 *opc, const u8 *k, const u8 *_rand, + const u8 *sqn, const u8 *amf, u8 *mac_a, u8 *mac_s); +#endif + int main(int argc, char **argv) { struct osmo_auth_vector _vec; @@ -92,6 +101,53 @@ int main(int argc, char **argv) dump_auth_vec(vec); + /* The USIM generates an AUTS to tell us it is at SQN == 31: + * + * SQN_MS = 00000000001f + * + * AUTS = Conc(SQN_MS) || MAC-S + * Conc(SQN_MS) = SQN_MS ⊕ f5*[K](RAND) + * MAC-S = f1*[K] (SQN MS || RAND || AMF) + * + * K = 000102030405060708090a0b0c0d0e0f + * RAND = 00000000000000000000000000000000 + * + * f5*--> Conc(SQN_MS) = SQN_MS ^ f5*(K,RAND) + * = 00000000001f ^ 8711a0ec9e09 + * = 8711a0ec9e16 + * AMF = 0000 (TS 33.102 v7.0.0, 6.3.3) + * MAC-S = f1*[K] (SQN MS || RAND || AMF) + * = f1*[K] (00000000001f || 00000000000000000000000000000000 || 0000) + * = 37df17f80b384ee4 + * + * AUTS = 8711a0ec9e16 || 37df17f80b384ee4 + */ +#if RECALC_AUTS + uint8_t ak[6]; + uint8_t akstar[6]; + uint8_t opc[16]; + uint8_t k[16]; + uint8_t rand[16]; + osmo_hexparse("000102030405060708090a0b0c0d0e0f", k, sizeof(k)); + osmo_hexparse("000102030405060708090a0b0c0d0e0f", opc, sizeof(opc)); + osmo_hexparse("00000000000000000000000000000000", rand, sizeof(rand)); + milenage_f2345(opc, k, rand, NULL, NULL, NULL, ak, akstar); + printf("ak = %s\n", osmo_hexdump_nospc(ak, sizeof(ak))); + printf("akstar = %s\n", osmo_hexdump_nospc(akstar, sizeof(akstar))); + + uint8_t sqn_ms[6] = { 0, 0, 0, 0, 0, 31 }; + uint8_t amf[2] = {}; + uint8_t mac_s[8]; + milenage_f1(opc, k, rand, sqn_ms, amf, NULL, mac_s); + printf("mac_s = %s\n", osmo_hexdump_nospc(mac_s, sizeof(mac_s))); + /* verify valid AUTS resulting in SQN 31 with: + osmo-auc-gen -3 -a milenage -k 000102030405060708090a0b0c0d0e0f \ + -o 000102030405060708090a0b0c0d0e0f \ + -r 00000000000000000000000000000000 \ + -A 8711a0ec9e1637df17f80b384ee4 + */ +#endif + const uint8_t auts[14] = { 0x87, 0x11, 0xa0, 0xec, 0x9e, 0x16, 0x37, 0xdf, 0x17, 0xf8, 0x0b, 0x38, 0x4e, 0xe4 }; |