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sm: suffix ILK calculation functions with source

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This commit is contained in:
Matthias Ringwald 2021-09-01 19:10:16 +02:00
parent b2296177d2
commit c82679c3b2
1 changed files with 4 additions and 4 deletions
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8
src/ble/sm.c
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@ -1969,7 +1969,7 @@ static void h7_engine(sm_connection_t * sm_conn, const sm_key_t salt, const sm_k
// E6405 – Cross transport key derivation from a key of size less than 128 bits
// "Note: When the BR/EDR link key is being derived from the LTK, the derivation is done before the LTK gets masked."
static void h6_calculate_ilk(sm_connection_t * sm_conn){
static void h6_calculate_ilk_from_le_ltk(sm_connection_t * sm_conn){
h6_engine(sm_conn, setup->sm_local_ltk, 0x746D7031); // "tmp1"
}
@ -1977,7 +1977,7 @@ static void h6_calculate_br_edr_link_key(sm_connection_t * sm_conn){
h6_engine(sm_conn, setup->sm_t, 0x6c656272); // "lebr"
}
static void h7_calculate_ilk(sm_connection_t * sm_conn){
static void h7_calculate_ilk_from_le_ltk(sm_connection_t * sm_conn){
const uint8_t salt[16] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x74, 0x6D, 0x70, 0x31}; // "tmp1"
h7_engine(sm_conn, salt, setup->sm_local_ltk);
}
@ -2588,7 +2588,7 @@ static void sm_run(void){
case SM_SC_W2_CALCULATE_ILK_USING_H6:
if (!sm_cmac_ready()) break;
connection->sm_engine_state = SM_SC_W4_CALCULATE_ILK;
h6_calculate_ilk(connection);
h6_calculate_ilk_from_le_ltk(connection);
break;
case SM_SC_W2_CALCULATE_BR_EDR_LINK_KEY:
if (!sm_cmac_ready()) break;
@ -2598,7 +2598,7 @@ static void sm_run(void){
case SM_SC_W2_CALCULATE_ILK_USING_H7:
if (!sm_cmac_ready()) break;
connection->sm_engine_state = SM_SC_W4_CALCULATE_ILK;
h7_calculate_ilk(connection);
h7_calculate_ilk_from_le_ltk(connection);
break;
#endif
#endif