| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <inttypes.h> |
| |
| #include <osmocom/crypt/auth.h> |
| #include <osmocom/core/utils.h> |
| |
| int milenage_opc_gen(uint8_t *opc, const uint8_t *k, const uint8_t *op); |
| |
| static void dump_auth_vec(struct osmo_auth_vector *vec) |
| { |
| printf("RAND:\t%s\n", osmo_hexdump(vec->rand, sizeof(vec->rand))); |
| |
| if (vec->auth_types & OSMO_AUTH_TYPE_UMTS) { |
| printf("AUTN:\t%s\n", osmo_hexdump(vec->autn, sizeof(vec->autn))); |
| printf("IK:\t%s\n", osmo_hexdump(vec->ik, sizeof(vec->ik))); |
| printf("CK:\t%s\n", osmo_hexdump(vec->ck, sizeof(vec->ck))); |
| printf("RES:\t%s\n", osmo_hexdump(vec->res, vec->res_len)); |
| } |
| |
| if (vec->auth_types & OSMO_AUTH_TYPE_GSM) { |
| printf("SRES:\t%s\n", osmo_hexdump(vec->sres, sizeof(vec->sres))); |
| printf("Kc:\t%s\n", osmo_hexdump(vec->kc, sizeof(vec->kc))); |
| } |
| } |
| |
| static struct osmo_sub_auth_data test_aud = { |
| .type = OSMO_AUTH_TYPE_UMTS, |
| .algo = OSMO_AUTH_ALG_MILENAGE, |
| .u.umts = { |
| .opc = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, |
| .k = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, |
| .amf = { 0x00, 0x00 }, |
| .sqn = 0x21, |
| .ind_bitlen = 0, |
| .ind = 0, |
| }, |
| }; |
| |
| static int opc_test(const struct osmo_sub_auth_data *aud) |
| { |
| int rc; |
| uint8_t opc[16]; |
| #if 0 |
| const uint8_t op[16] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f }; |
| #else |
| const uint8_t op[16] = { 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0 }; |
| #endif |
| |
| printf("MILENAGE supported: %d\n", |
| osmo_auth_supported(osmo_auth_alg_parse("MILENAGE"))); |
| |
| rc = milenage_opc_gen(opc, aud->u.umts.k, op); |
| |
| printf("OP:\t%s\n", osmo_hexdump(op, sizeof(op))); |
| printf("OPC:\t%s\n", osmo_hexdump(opc, sizeof(opc))); |
| 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; |
| struct osmo_auth_vector *vec = &_vec; |
| uint8_t _rand[16]; |
| int rc; |
| |
| #if 0 |
| srand(time(NULL)); |
| *(uint32_t *)&_rand[0] = rand(); |
| *(uint32_t *)(&_rand[4]) = rand(); |
| *(uint32_t *)(&_rand[8]) = rand(); |
| *(uint32_t *)(&_rand[12]) = rand(); |
| #else |
| memset(_rand, 0, sizeof(_rand)); |
| #endif |
| memset(vec, 0, sizeof(*vec)); |
| |
| /* ind_bitlen == 0 uses the legacy mode of incrementing SQN by 1. |
| * sqn == 0x21 == 33, so the SQN used to generate the vector is |
| * sqn + 1 == 34. */ |
| rc = osmo_auth_gen_vec(vec, &test_aud, _rand); |
| if (rc < 0) { |
| fprintf(stderr, "error generating auth vector\n"); |
| exit(1); |
| } |
| |
| 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 }; |
| |
| /* Invoking with ind_bitlen == 0, the next SQN after 31 is 32. */ |
| rc = osmo_auth_gen_vec_auts(vec, &test_aud, auts, _rand, _rand); |
| if (rc < 0) { |
| printf("AUTS failed\n"); |
| } else { |
| printf("AUTS success: tuple generated with SQN = %" PRIu64 "\n", |
| test_aud.u.umts.sqn); |
| } |
| |
| /* Now test SQN incrementing scheme using SEQ and IND parts: |
| * with ind_bitlen == 5 and ind == 10, the next SQN after 31 is |
| * 32 + 10 == 42. */ |
| test_aud.u.umts.ind_bitlen = 5; |
| test_aud.u.umts.ind = 10; |
| rc = osmo_auth_gen_vec_auts(vec, &test_aud, auts, _rand, _rand); |
| if (rc < 0) |
| printf("AUTS failed\n"); |
| else |
| printf("AUTS success: tuple generated with SQN = %" PRIu64 "\n", |
| test_aud.u.umts.sqn); |
| |
| /* And the one after that is 64 + 10 == 74 */ |
| rc = osmo_auth_gen_vec(vec, &test_aud, _rand); |
| if (rc < 0) |
| printf("generating vector failed\n"); |
| else |
| printf("tuple generated with SQN = %" PRIu64 "\n", |
| test_aud.u.umts.sqn); |
| |
| /* And the one after *that* is 96 + 10 == 106 */ |
| rc = osmo_auth_gen_vec(vec, &test_aud, _rand); |
| if (rc < 0) |
| printf("generating vector failed\n"); |
| else |
| printf("tuple generated with SQN = %" PRIu64 "\n", |
| test_aud.u.umts.sqn); |
| |
| opc_test(&test_aud); |
| |
| exit(0); |
| |
| } |