mirror/btstack
1
0
Fork 0
mirror of https://github.com/bluekitchen/btstack.git synced 2025-01-26 03:35:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

sm: use fresh nonce for each passkey round

Browse Source
This commit is contained in:
Matthias Ringwald 2016-05-29 19:23:10 +02:00
parent 2886623dc7
commit 1c516d8ff1
1 changed files with 14 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
src/ble/sm.c
View File

@ -1571,6 +1571,15 @@ static void g2_calculate_engine(sm_connection_t * sm_conn) {
}
static void sm_sc_calculate_local_confirm(sm_connection_t * sm_conn){
// TODO: use random generator to generate nonce
// generate 128-bit nonce
int i;
for (i=0;i<16;i++){
setup->sm_local_nonce[i] = rand() & 0xff;
}
uint8_t z = 0;
if (setup->sm_stk_generation_method != JUST_WORKS && setup->sm_stk_generation_method != NK_BOTH_INPUT){
// some form of passkey
@ -2002,13 +2011,6 @@ static void sm_run(void){
mbedtls_mpi_write_binary(&le_keypair.Q.Y, value, sizeof(value));
reverse_256(value, &buffer[33]);
#endif
// TODO: use random generator to generate nonce
// generate 128-bit nonce
int i;
for (i=0;i<16;i++){
setup->sm_local_nonce[i] = rand() & 0xff;
}
// stk generation method
// passkey entry: notify app to show passkey or to request passkey
@ -3511,6 +3513,11 @@ void sm_passkey_input(hci_con_handle_t con_handle, uint32_t passkey){
if (sm_conn->sm_engine_state == SM_PH1_W4_USER_RESPONSE){
sm_conn->sm_engine_state = SM_PH2_C1_GET_RANDOM_A;
}
#ifdef ENABLE_LE_SECURE_CONNECTIONS
// if (sm_conn->sm_engine_state == SM_SC_W4_USER_RESPONSE){
// sm_sc_prepare_dhkey_check(sm_conn);
// }
#endif
sm_run();
}