diff --git a/openair3/NAS/UE/API/USIM/usim_api.c b/openair3/NAS/UE/API/USIM/usim_api.c
index 58ca9aa279e95e66375647e3760bf490f833dded..ed2449b4ab2b8a535e72c613436ef3b7d259047e 100644
--- a/openair3/NAS/UE/API/USIM/usim_api.c
+++ b/openair3/NAS/UE/API/USIM/usim_api.c
@@ -66,17 +66,6 @@ Description Implements the API used by the NAS layer to read/write
*/
#define USIM_API_NVRAM_DIRNAME "USIM_DIR"
-/*
- * Subscriber authentication security key
- */
-#define USIM_API_K_SIZE 16
-//#define USIM_API_K_VALUE "fec86ba6eb707ed08905757b1bb44b8f"
-#define USIM_API_K_VALUE "8BAF473F2F8FD09487CCCBD7097C6862"
-#define TEST_USIM_API_K_VALUE "000102030405060708090a0b0c0d0e0f" // CMW500 K key
-
-static uint8_t _usim_api_k[USIM_API_K_SIZE];
-
-
/*
* List of last used Sequence Numbers SQN
*/
@@ -137,14 +126,7 @@ int usim_api_read(usim_data_t* data)
}
/* initialize the subscriber authentication security key */
- if(data->usimtestmode == 0)
- {
- _usim_api_hex_string_to_hex_value(_usim_api_k, USIM_API_K_VALUE, USIM_API_K_SIZE);
- }
- else
- {
- _usim_api_hex_string_to_hex_value(_usim_api_k, TEST_USIM_API_K_VALUE, USIM_API_K_SIZE);
- }
+ _usim_api_hex_string_to_hex_value(data->keys.usim_api_k, USIM_API_K_VALUE, USIM_API_K_SIZE);
free(path);
LOG_FUNC_RETURN (RETURNok);
@@ -392,7 +374,6 @@ int usim_api_authenticate_test(const OctetString* rand_pP, const OctetString* au
** autn_pP: Authentication token **
** AUTN = (SQN xor AK) || AMF || MAC **
** 48 16 64 bits **
- ** Others: Security key **
** **
** Outputs: auts_pP: Re-synchronization token **
** res_pP: Authentication response **
@@ -403,7 +384,7 @@ int usim_api_authenticate_test(const OctetString* rand_pP, const OctetString* au
** Others: None **
** **
***************************************************************************/
-int usim_api_authenticate(const OctetString* rand_pP, const OctetString* autn_pP,
+int usim_api_authenticate(uint8_t usim_api_k[USIM_API_K_SIZE], const OctetString* rand_pP, const OctetString* autn_pP,
OctetString* auts_pP, OctetString* res_pP,
OctetString* ck_pP, OctetString* ik_pP)
{
@@ -421,7 +402,7 @@ int usim_api_authenticate(const OctetString* rand_pP, const OctetString* autn_pP
/* Compute the anonymity key AK = f5K (RAND) */
u8 ak[USIM_API_AK_SIZE];
- f2345(_usim_api_k, rand_pP->value,
+ f2345(usim_api_k, rand_pP->value,
res_pP->value, ck_pP->value, ik_pP->value, ak);
LOG_TRACE(INFO, "USIM-API - res(f2) :%s",dump_octet_string(res_pP));
LOG_TRACE(INFO, "USIM-API - ck(f3) :%s",dump_octet_string(ck_pP));
@@ -443,7 +424,7 @@ int usim_api_authenticate(const OctetString* rand_pP, const OctetString* autn_pP
/* Compute XMAC = f1K (SQN || RAND || AMF) */
#define USIM_API_XMAC_SIZE 8
u8 xmac[USIM_API_XMAC_SIZE];
- f1(_usim_api_k, rand_pP->value, sqn, &autn_pP->value[USIM_API_SQN_SIZE], xmac);
+ f1(usim_api_k, rand_pP->value, sqn, &autn_pP->value[USIM_API_SQN_SIZE], xmac);
LOG_TRACE(DEBUG,
"USIM-API - Computed XMAC %02X%02X%02X%02X%02X%02X%02X%02X",
xmac[0],xmac[1],xmac[2],xmac[3],
@@ -471,7 +452,7 @@ int usim_api_authenticate(const OctetString* rand_pP, const OctetString* autn_pP
/* Concealed value of the counter SQNms in the USIM:
* Conc(SQNMS) = SQNMS ⊕ f5*K(RAND) */
- f5star(_usim_api_k, rand_pP->value, ak);
+ f5star(usim_api_k, rand_pP->value, ak);
u8 sqn_ms[USIM_API_SQNMS_SIZE];
@@ -499,7 +480,7 @@ int usim_api_authenticate(const OctetString* rand_pP, const OctetString* autn_pP
* MACS = f1*K(SQNMS || RAND || AMF) */
#define USIM_API_MACS_SIZE USIM_API_XMAC_SIZE
u8 macs[USIM_API_MACS_SIZE];
- f1star(_usim_api_k, rand_pP->value, sqn_ms,
+ f1star(usim_api_k, rand_pP->value, sqn_ms,
&rand_pP->value[USIM_API_SQN_SIZE], macs);
LOG_TRACE(DEBUG, "USIM-API - MACS %02X%02X%02X%02X%02X%02X%02X%02X",
macs[0],macs[1],macs[2],macs[3],
diff --git a/openair3/NAS/UE/API/USIM/usim_api.h b/openair3/NAS/UE/API/USIM/usim_api.h
index 8cfaeb8aed67d14a0ca3cecde85eeba9433ce3d1..c0bdf9a1977bf2d626e5fb889d4129872b79c537 100644
--- a/openair3/NAS/UE/API/USIM/usim_api.h
+++ b/openair3/NAS/UE/API/USIM/usim_api.h
@@ -48,6 +48,12 @@ Description Implements the API used by the NAS layer to read/write
/********************* G L O B A L C O N S T A N T S *******************/
/****************************************************************************/
+/*
+ * Subscriber authentication security key
+ */
+#define USIM_API_K_SIZE 16
+#define USIM_API_K_VALUE "fec86ba6eb707ed08905757b1bb44b8f"
+
/****************************************************************************/
/************************ G L O B A L T Y P E S ************************/
/****************************************************************************/
@@ -106,6 +112,7 @@ typedef struct {
/* Integrity key */
#define USIM_IK_SIZE 16
Byte_t ik[USIM_IK_SIZE];
+ uint8_t usim_api_k[USIM_API_K_SIZE];
} usim_keys_t;
/*
@@ -343,7 +350,7 @@ int usim_api_read(usim_data_t* data);
int usim_api_write(const usim_data_t* data);
-int usim_api_authenticate(const OctetString* rand, const OctetString* autn,
+int usim_api_authenticate(uint8_t usim_api_k[USIM_API_K_SIZE], const OctetString* rand_pP, const OctetString* autn_pP,
OctetString* auts, OctetString* res,
OctetString* ck, OctetString* ik);
int usim_api_authenticate_test(const OctetString* rand, const OctetString* autn,
diff --git a/openair3/NAS/UE/EMM/Authentication.c b/openair3/NAS/UE/EMM/Authentication.c
index 8a20eead250194ee596df3539bc303ccc913bdfa..b32a1c59f05facc56ceda9d2beeb91c49dec3af5 100644
--- a/openair3/NAS/UE/EMM/Authentication.c
+++ b/openair3/NAS/UE/EMM/Authentication.c
@@ -159,6 +159,7 @@ int emm_proc_authentication_request(nas_user_t *user, int native_ksi, int ksi,
int rc = RETURNerror;
authentication_data_t *authentication_data = user->authentication_data;
+ uint8_t *key = user->usim_data.keys.usim_api_k;
emm_timers_t *emm_timers = user->emm_data->emm_timers;
LOG_TRACE(INFO, "EMM-PROC - Authentication requested ksi type = %s, ksi = %d", native_ksi ? "native" : "mapped", ksi);
@@ -219,11 +220,11 @@ int emm_proc_authentication_request(nas_user_t *user, int native_ksi, int ksi,
*/
if(usim_test == 0)
{
- rc = usim_api_authenticate(rand, autn, &auts, &res, &ck, &ik);
+ rc = usim_api_authenticate(key, rand, autn, &auts, &res, &ck, &ik);
}
else
{
- rc = usim_api_authenticate_test(rand, autn, &auts, &res, &ck, &ik); // XOR algo for autentication on usim test mode
+ rc = usim_api_authenticate_test(key, rand, autn, &auts, &res, &ck, &ik);
}
}