PinLin/holycard-cracker
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Prompt brute force phase

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This commit is contained in:
Aram
2016-04-30 07:23:19 +02:00
parent 221fa312ac
commit de03f66252
1 changed files with 22 additions and 14 deletions
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36
libnfc_crypto1_crack.c
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@ -209,12 +209,13 @@ void have_enough_states(int sig){
} }
if(!space){ if(!space){
printf("\rCollected %zu nonces... ", nonces_collected); printf("\rCollected %zu nonces... ", nonces_collected);
fflush(stdout);
signal(SIGALRM, have_enough_states);
alarm(1);
} else { } else {
alarm(0); total_states = craptev1_sizeof_space(space);
printf("\rCollected %zu nonces... leftover complexity %zu (press any key to start brute-force phase)", nonces_collected, total_states);
} }
fflush(stdout);
signal(SIGALRM, have_enough_states);
alarm(1);
} }
int main (int argc, const char * argv[]) { int main (int argc, const char * argv[]) {
@ -247,11 +248,9 @@ int main (int argc, const char * argv[]) {
uid = bytes_to_num(target.nti.nai.abtUid,target.nti.nai.szUidLen); uid = bytes_to_num(target.nti.nai.abtUid,target.nti.nai.szUidLen);
} }
thread_count = get_nprocs_conf();
pthread_t threads[thread_count];
if(!uid){ if(!uid){
goto DISCONNECT; // Disconnect from NFC device
nfc_close(pnd);
} }
if(argc < 4){ if(argc < 4){
@ -281,6 +280,8 @@ int main (int argc, const char * argv[]) {
signal(SIGALRM, have_enough_states); signal(SIGALRM, have_enough_states);
alarm(1); alarm(1);
fcntl(0, F_SETFL, O_NONBLOCK);
while(true){ while(true){
// Configure the CRC and Parity settings // Configure the CRC and Parity settings
nfc_device_set_property_bool(pnd,NP_HANDLE_CRC,true); nfc_device_set_property_bool(pnd,NP_HANDLE_CRC,true);
@ -292,11 +293,22 @@ int main (int argc, const char * argv[]) {
printf("Don't move the tag!\n"); printf("Don't move the tag!\n");
} }
if(space){ if(space){
break; char c;
if(read(0, &c, 1) == 1 || total_states < 0x1000000000){
alarm(0);
break;
}
} }
} }
fclose(fp); fclose(fp);
total_states = craptev1_sizeof_space(space);
if(!space){
return 1;
}
thread_count = get_nprocs_conf();
pthread_t threads[thread_count];
size_t i; size_t i;
@ -333,9 +345,5 @@ int main (int argc, const char * argv[]) {
printf("Tested %zu states\n", total_states_tested); printf("Tested %zu states\n", total_states_tested);
craptev1_destroy_space(space); craptev1_destroy_space(space);
DISCONNECT:
// Disconnect from NFC device
nfc_close(pnd);
return 0; return 0;
} }