#include <assert.h>
#define CONFIDENCE_THRESHOLD 0.95 // Collect nonces until we are certain enough that the following brute force is successfull
-#define GOOD_BYTES_REQUIRED 28
+#define GOOD_BYTES_REQUIRED 13 // default 28, could be smaller == faster
+
+#define END_OF_LIST_MARKER 0xFFFFFFFF
static const float p_K[257] = { // the probability that a random nonce has a Sum Property == K
0.0290, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000,
num_good_first_bytes = 0;
}
-
static void free_nonce_list(noncelistentry_t *p)
{
if (p == NULL) {
time1 = clock() - time1;
if ( time1 > 0 ) {
- PrintAndLog("Acquired a total of %d nonces in %1.1f seconds (%0.0f nonces/minute)",
- total_num_nonces,
- ((float)time1)/CLOCKS_PER_SEC,
- total_num_nonces * 60.0 * CLOCKS_PER_SEC/(float)time1
+ PrintAndLog("Acquired a total of %d nonces in %1.1f seconds (%0.0f nonces/minute)",
+ total_num_nonces,
+ ((float)time1)/CLOCKS_PER_SEC,
+ total_num_nonces * 60.0 * CLOCKS_PER_SEC/(float)time1
);
}
return 0;
for (uint16_t i = 0; i <= 16; i += 2) {
uint32_t *p = partial_statelist[i].states[odd_even];
p += partial_statelist[i].len[odd_even];
- *p = 0xffffffff;
+ *p = END_OF_LIST_MARKER;
}
}
}
// set len and add End Of List marker
statelist_bitflip.len[0] = p - statelist_bitflip.states[0];
- *p = 0xffffffff;
+ *p = END_OF_LIST_MARKER;
statelist_bitflip.states[0] = realloc(statelist_bitflip.states[0], sizeof(uint32_t) * (statelist_bitflip.len[0] + 1));
}
if (p == NULL) return NULL;
while (*p < (state & mask)) p++;
- if (*p == 0xffffffff) return NULL; // reached end of list, no match
+ if (*p == END_OF_LIST_MARKER) return NULL; // reached end of list, no match
if ((*p & mask) == (state & mask)) return p; // found a match.
return NULL; // no match
}
uint16_t part_sum_a8 = (odd_even == ODD_STATE) ? r : s;
uint32_t *p = find_first_state(state, mask, &partial_statelist[part_sum_a8], odd_even);
if (p != NULL) {
- while ((state & mask) == (*p & mask) && (*p != 0xffffffff)) {
+ while ((state & mask) == (*p & mask) && (*p != END_OF_LIST_MARKER)) {
if (remaining_bits_match(j, bytes_diff, state, (state&0x00fffff0) | *p, odd_even)) {
found_match = true;
// if ((odd_even == ODD_STATE && state == test_state_odd)
bool found_match = false;
uint32_t *p = find_first_state(state, mask, &statelist_bitflip, 0);
if (p != NULL) {
- while ((state & mask) == (*p & mask) && (*p != 0xffffffff)) {
+ while ((state & mask) == (*p & mask) && (*p != END_OF_LIST_MARKER)) {
if (remaining_bits_match(j, bytes_diff, state, (state&0x00fffff0) | *p, odd_even)) {
found_match = true;
// if ((odd_even == ODD_STATE && state == test_state_odd)
return 4;
}
uint32_t *add_p = candidates->states[odd_even];
- for (uint32_t *p1 = partial_statelist[part_sum_a0].states[odd_even]; *p1 != 0xffffffff; p1++) {
+ for (uint32_t *p1 = partial_statelist[part_sum_a0].states[odd_even]; *p1 != END_OF_LIST_MARKER; p1++) {
uint32_t search_mask = 0x000ffff0;
uint32_t *p2 = find_first_state((*p1 << 4), search_mask, &partial_statelist[part_sum_a8], odd_even);
if (p2 != NULL) {
- while (((*p1 << 4) & search_mask) == (*p2 & search_mask) && *p2 != 0xffffffff) {
+ while (((*p1 << 4) & search_mask) == (*p2 & search_mask) && *p2 != END_OF_LIST_MARKER) {
if ((nonces[best_first_bytes[0]].BitFlip[odd_even] && find_first_state((*p1 << 4) | *p2, 0x000fffff, &statelist_bitflip, 0))
|| !nonces[best_first_bytes[0]].BitFlip[odd_even]) {
if (all_other_first_bytes_match((*p1 << 4) | *p2, odd_even)) {
}
// set end of list marker and len
- *add_p = 0xffffffff;
+ *add_p = END_OF_LIST_MARKER;
candidates->len[odd_even] = add_p - candidates->states[odd_even];
candidates->states[odd_even] = realloc(candidates->states[odd_even], sizeof(uint32_t) * (candidates->len[odd_even] + 1));
bool found_even = false;
uint32_t *p_odd = p->states[ODD_STATE];
uint32_t *p_even = p->states[EVEN_STATE];
- while (*p_odd != 0xffffffff) {
+ while (*p_odd != END_OF_LIST_MARKER) {
if ((*p_odd & 0x00ffffff) == state_odd) {
found_odd = true;
break;
}
p_odd++;
}
- while (*p_even != 0xffffffff) {
+ while (*p_even != END_OF_LIST_MARKER) {
if ((*p_even & 0x00ffffff) == state_even) {
found_even = true;
}
}
count += (p_odd - p->states[ODD_STATE]) * (p_even - p->states[EVEN_STATE]);
if (found_odd && found_even) {
- PrintAndLog("Key Found after testing %lld (2^%1.1f) out of %lld (2^%1.1f) keys. A brute force would have taken approx %lld minutes.",
- count, log(count)/log(2),
- maximum_states, log(maximum_states)/log(2),
- (count>>23)/60);
+ PrintAndLog("Key Found after testing %lld (2^%1.1f) out of %lld (2^%1.1f) keys. ",
+ count,
+ log(count)/log(2),
+ maximum_states,
+ log(maximum_states)/log(2)
+ );
if (write_stats) {
fprintf(fstats, "1\n");
}
} else {
current_candidates->len[EVEN_STATE] = 0;
uint32_t *p = current_candidates->states[EVEN_STATE] = malloc(sizeof(uint32_t));
- *p = 0xffffffff;
+ *p = END_OF_LIST_MARKER;
}
} else {
add_matching_states(current_candidates, q, s, EVEN_STATE);
} else {
current_candidates->len[ODD_STATE] = 0;
uint32_t *p = current_candidates->states[ODD_STATE] = malloc(sizeof(uint32_t));
- *p = 0xffffffff;
+ *p = END_OF_LIST_MARKER;
}
}
//printf("Odd state candidates: %6d (2^%0.1f)\n", current_candidates->len[ODD_STATE], log(current_candidates->len[ODD_STATE])/log(2));
pthread_t threads[thread_count];
// enumerate states using all hardware threads, each thread handles one bucket
- PrintAndLog("Starting %u cracking threads to search %u buckets containing a total of %"PRIu32" states...", thread_count, bucket_count, maximum_states);
+ PrintAndLog("Starting %u cracking threads to search %u buckets containing a total of %"PRIu64" states...", thread_count, bucket_count, maximum_states);
for(size_t i = 0; i < thread_count; i++){
pthread_create(&threads[i], NULL, crack_states_thread, (void*) i);
pthread_join(threads[i], 0);
}
- time(&end);
- unsigned long elapsed_time = difftime(end, start);
+ time(&end);
+ double elapsed_time = difftime(end, start);
+ PrintAndLog("ICE %.f seconds", elapsed_time);
if(keys_found){
- PrintAndLog("Success! Tested %"PRIu32" states, found %u keys after %u seconds", total_states_tested, keys_found, elapsed_time);
+ PrintAndLog("Success! Tested %"PRIu32" states, found %u keys after %.f seconds", total_states_tested, keys_found, elapsed_time);
PrintAndLog("\nFound key: %012"PRIx64"\n", foundkey);
} else {
- PrintAndLog("Fail! Tested %"PRIu32" states, in %u seconds", total_states_tested, elapsed_time);
+ PrintAndLog("Fail! Tested %"PRIu32" states, in %.f seconds", total_states_tested, elapsed_time);
}
// reset this counter for the next call
nonces_to_bruteforce = 0;
PrintAndLog("Time for generating key candidates list: %1.0f seconds", ((float)time1)/CLOCKS_PER_SEC);
brute_force();
+
free_nonces_memory();
free_statelist_cache();
free_candidates_memory(candidates);
projects / proxmark3-svn / blobdiff