CHG: The jablotron demod now deals with the strangeness of hex symbols A-F in cardid...

[proxmark3-svn] / client / cmdhfmfhard.c

diff --git a/client/cmdhfmfhard.c b/client/cmdhfmfhard.c
index 1d642676a442d92a23665411f0e51f6f64b65831..2af03f0842099b3d1a358037bd4ede2896248a98 100644 (file)
--- a/client/cmdhfmfhard.c
+++ b/client/cmdhfmfhard.c
@@ -30,14 +30,16 @@
 #ifdef __WIN32
        #include <windows.h>
 #endif
 #ifdef __WIN32
        #include <windows.h>
 #endif

-#include <malloc.h>
+// don't include for APPLE/mac which has malloc stuff elsewhere.
+#ifndef __APPLE__
+       #include <malloc.h>
+#endif

 #include <assert.h>
 
 #include <assert.h>
 

-// uint32_t test_state_odd = 0;
-// uint32_t test_state_even = 0;
-

 #define CONFIDENCE_THRESHOLD   0.95            // Collect nonces until we are certain enough that the following brute force is successfull
 #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, 
 
 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, 


@@ -199,7 +201,6 @@ static void init_nonce_memory(void)
        num_good_first_bytes = 0;
 }
 
        num_good_first_bytes = 0;
 }
 

-

 static void free_nonce_list(noncelistentry_t *p)
 {
        if (p == NULL) {
 static void free_nonce_list(noncelistentry_t *p)
 {
        if (p == NULL) {


@@ -608,11 +609,11 @@ static uint16_t estimate_second_byte_sum(void)
 static int read_nonce_file(void)
 {
        FILE *fnonces = NULL;
 static int read_nonce_file(void)
 {
        FILE *fnonces = NULL;

-       uint8_t trgBlockNo;
-       uint8_t trgKeyType;
+       uint8_t trgBlockNo = 0;
+       uint8_t trgKeyType = 0;

        uint8_t read_buf[9];
        uint8_t read_buf[9];

-       uint32_t nt_enc1, nt_enc2;
-       uint8_t par_enc;
+       uint32_t nt_enc1 = 0, nt_enc2 = 0;
+       uint8_t par_enc = 0;

        int total_num_nonces = 0;
        
        if ((fnonces = fopen("nonces.bin","rb")) == NULL) { 
        int total_num_nonces = 0;
        
        if ((fnonces = fopen("nonces.bin","rb")) == NULL) { 


@@ -643,7 +644,6 @@ static int read_nonce_file(void)
        }
        fclose(fnonces);
        PrintAndLog("Read %d nonces from file. cuid=%08x, Block=%d, Keytype=%c", total_num_nonces, cuid, trgBlockNo, trgKeyType==0?'A':'B');
        }
        fclose(fnonces);
        PrintAndLog("Read %d nonces from file. cuid=%08x, Block=%d, Keytype=%c", total_num_nonces, cuid, trgBlockNo, trgKeyType==0?'A':'B');

-

        return 0;
 }
 
        return 0;
 }
 


@@ -817,7 +817,6 @@ static int acquire_nonces(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_
                                //printf("Encrypted nonce: %08x, encrypted_parity: %02x\n", nt_enc2, par_enc & 0x0f);
                                total_added_nonces += add_nonce(nt_enc2, par_enc & 0x0f);
                                
                                //printf("Encrypted nonce: %08x, encrypted_parity: %02x\n", nt_enc2, par_enc & 0x0f);
                                total_added_nonces += add_nonce(nt_enc2, par_enc & 0x0f);
                                

-

                                if (nonce_file_write) {
                                        fwrite(bufp, 1, 9, fnonces);
                                }
                                if (nonce_file_write) {
                                        fwrite(bufp, 1, 9, fnonces);
                                }


@@ -870,10 +869,10 @@ static int acquire_nonces(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_
        
        time1 = clock() - time1;
        if ( time1 > 0 ) {
        
        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;
                );
        }
        return 0;


@@ -922,7 +921,7 @@ static int init_partial_statelists(void)
                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];
                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;

                }
        }
        
                }
        }
        


@@ -948,7 +947,7 @@ static void init_BitFlip_statelist(void)
        }
        // set len and add End Of List marker
        statelist_bitflip.len[0] = p - statelist_bitflip.states[0];
        }
        // 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));
 }
                
        statelist_bitflip.states[0] = realloc(statelist_bitflip.states[0], sizeof(uint32_t) * (statelist_bitflip.len[0] + 1));
 }
                


@@ -958,7 +957,7 @@ static inline uint32_t *find_first_state(uint32_t state, uint32_t mask, partial_
 
        if (p == NULL) return NULL;
        while (*p < (state & mask)) p++;
 
        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
 } 
        if ((*p & mask) == (state & mask)) return p;            // found a match.
        return NULL;                                                                            // no match
 } 


@@ -1036,7 +1035,7 @@ static bool all_other_first_bytes_match(uint32_t state, odd_even_t odd_even)
                                        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) {
                                        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)
                                                        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)


@@ -1094,7 +1093,7 @@ static bool all_bit_flips_match(uint32_t state, odd_even_t odd_even)
                        bool found_match = false;
                        uint32_t *p = find_first_state(state, mask, &statelist_bitflip, 0);
                        if (p != NULL) {
                        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)
                                        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)


@@ -1167,11 +1166,11 @@ static int add_matching_states(statelist_t *candidates, uint16_t part_sum_a0, ui
                return 4;
        }
        uint32_t *add_p = candidates->states[odd_even]; 
                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) {
                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)) {
                                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)) {


@@ -1186,7 +1185,7 @@ static int add_matching_states(statelist_t *candidates, uint16_t part_sum_a0, ui
        }
 
        // set end of list marker and len
        }
 
        // 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));
        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));


@@ -1232,14 +1231,14 @@ static void TestIfKeyExists(uint64_t key)
                bool found_even = false;
                uint32_t *p_odd = p->states[ODD_STATE];
                uint32_t *p_even = p->states[EVEN_STATE];
                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++;
                }
                        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;
                        }
                        if ((*p_even & 0x00ffffff) == state_even) {
                                found_even = true;
                        }


@@ -1247,10 +1246,12 @@ static void TestIfKeyExists(uint64_t key)
                }
                count += (p_odd - p->states[ODD_STATE]) * (p_even - p->states[EVEN_STATE]);
                if (found_odd && found_even) {
                }
                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");
                        }
                        if (write_stats) {
                                fprintf(fstats, "1\n");
                        }


@@ -1303,7 +1304,7 @@ static void generate_candidates(uint16_t sum_a0, uint16_t sum_a8)
                                                                } else {
                                                                        current_candidates->len[EVEN_STATE] = 0;
                                                                        uint32_t *p = current_candidates->states[EVEN_STATE] = malloc(sizeof(uint32_t));
                                                                } 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 {
                                                                add_matching_states(current_candidates, q, s, EVEN_STATE);


@@ -1312,11 +1313,11 @@ static void generate_candidates(uint16_t sum_a0, uint16_t sum_a8)
                                                                } else {
                                                                        current_candidates->len[ODD_STATE] = 0;
                                                                        uint32_t *p = current_candidates->states[ODD_STATE] = malloc(sizeof(uint32_t));
                                                                } 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)); 
-                                                       printf("Even state candidates: %6d (2^%0.1f)\n", current_candidates->len[EVEN_STATE], log(current_candidates->len[EVEN_STATE])/log(2)); 
+                                                       //printf("Odd  state candidates: %6d (2^%0.1f)\n", current_candidates->len[ODD_STATE], log(current_candidates->len[ODD_STATE])/log(2)); 
+                                                       //printf("Even state candidates: %6d (2^%0.1f)\n", current_candidates->len[EVEN_STATE], log(current_candidates->len[EVEN_STATE])/log(2)); 

                                                }
                                        }
                                }
                                                }
                                        }
                                }


@@ -1360,6 +1361,7 @@ static void free_statelist_cache(void)
        }               
 }
 
        }               
 }
 

+uint64_t foundkey = 0;

 size_t keys_found = 0;
 size_t bucket_count = 0;
 statelist_t* buckets[128];
 size_t keys_found = 0;
 size_t bucket_count = 0;
 statelist_t* buckets[128];


@@ -1402,7 +1404,11 @@ static const uint64_t crack_states_bitsliced(statelist_t *p){
                bitslice_t * restrict lstate_p = _aligned_malloc((STATE_SIZE+ROLLBACK_SIZE) * bSize, bSize);
        #endif
 #else
                bitslice_t * restrict lstate_p = _aligned_malloc((STATE_SIZE+ROLLBACK_SIZE) * bSize, bSize);
        #endif
 #else

+       #ifdef __APPLE__
+               bitslice_t * restrict lstate_p = malloc((STATE_SIZE+ROLLBACK_SIZE) * bSize);
+       #else

                bitslice_t * restrict lstate_p = memalign(bSize, (STATE_SIZE+ROLLBACK_SIZE) * bSize);
                bitslice_t * restrict lstate_p = memalign(bSize, (STATE_SIZE+ROLLBACK_SIZE) * bSize);

+       #endif

 #endif
 
                if ( !lstate_p )        {
 #endif
 
                if ( !lstate_p )        {


@@ -1609,8 +1615,8 @@ static void* crack_states_thread(void* x){
                if(bucket){
             const uint64_t key = crack_states_bitsliced(bucket);
             if(key != -1){
                if(bucket){
             const uint64_t key = crack_states_bitsliced(bucket);
             if(key != -1){

-                printf("\nFound key: %012"PRIx64"\n", key);

                 __sync_fetch_and_add(&keys_found, 1);
                 __sync_fetch_and_add(&keys_found, 1);

+                               __sync_fetch_and_add(&foundkey, key);

                 break;
             } else if(keys_found){
                 break;
                 break;
             } else if(keys_found){
                 break;


@@ -1634,14 +1640,15 @@ static void brute_force(void)
         time_t start, end;
         time(&start);
         keys_found = 0;
         time_t start, end;
         time(&start);
         keys_found = 0;

-
+               foundkey = 0;
+               

         crypto1_bs_init();
 
         PrintAndLog("Using %u-bit bitslices", MAX_BITSLICES);
         PrintAndLog("Bitslicing best_first_byte^uid[3] (rollback byte): %02x...", best_first_bytes[0]^(cuid>>24));
         // convert to 32 bit little-endian
         crypto1_bs_init();
 
         PrintAndLog("Using %u-bit bitslices", MAX_BITSLICES);
         PrintAndLog("Bitslicing best_first_byte^uid[3] (rollback byte): %02x...", best_first_bytes[0]^(cuid>>24));
         // convert to 32 bit little-endian

-        crypto1_bs_bitslice_value32(rev32((best_first_bytes[0]^(cuid>>24))), bitsliced_rollback_byte, 8);
-
+               crypto1_bs_bitslice_value32((best_first_bytes[0]<<24)^cuid, bitsliced_rollback_byte, 8);
+                       

         PrintAndLog("Bitslicing nonces...");
         for(size_t tests = 0; tests < NONCE_TESTS; tests++){
             uint32_t test_nonce = brute_force_nonces[tests]->nonce_enc;
         PrintAndLog("Bitslicing nonces...");
         for(size_t tests = 0; tests < NONCE_TESTS; tests++){
             uint32_t test_nonce = brute_force_nonces[tests]->nonce_enc;


@@ -1650,7 +1657,7 @@ static void brute_force(void)
             crypto1_bs_bitslice_value32(cuid^test_nonce, bitsliced_encrypted_nonces[tests], 32);
             // convert to 32 bit little-endian
             crypto1_bs_bitslice_value32(rev32( ~(test_parity ^ ~(parity(cuid>>24 & 0xff)<<3 | parity(cuid>>16 & 0xff)<<2 | parity(cuid>>8 & 0xff)<<1 | parity(cuid&0xff)))), bitsliced_encrypted_parity_bits[tests], 4);
             crypto1_bs_bitslice_value32(cuid^test_nonce, bitsliced_encrypted_nonces[tests], 32);
             // convert to 32 bit little-endian
             crypto1_bs_bitslice_value32(rev32( ~(test_parity ^ ~(parity(cuid>>24 & 0xff)<<3 | parity(cuid>>16 & 0xff)<<2 | parity(cuid>>8 & 0xff)<<1 | parity(cuid&0xff)))), bitsliced_encrypted_parity_bits[tests], 4);

-        }
+               }

         total_states_tested = 0;
 
         // count number of states to go
         total_states_tested = 0;
 
         // count number of states to go


@@ -1665,10 +1672,11 @@ static void brute_force(void)
                if ( thread_count < 1)
                        thread_count = 1;
 #endif  /* _WIN32 */
                if ( thread_count < 1)
                        thread_count = 1;
 #endif  /* _WIN32 */

+

         pthread_t threads[thread_count];
                
         // enumerate states using all hardware threads, each thread handles one bucket
         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);
                
         for(size_t i = 0; i < thread_count; i++){
             pthread_create(&threads[i], NULL, crack_states_thread, (void*) i);


@@ -1677,12 +1685,15 @@ static void brute_force(void)
             pthread_join(threads[i], 0);
         }
 
             pthread_join(threads[i], 0);
         }
 

-        time(&end);
-        unsigned long elapsed_time = difftime(end, start);
-        PrintAndLog("Tested %"PRIu32" states, found %u keys after %u seconds", total_states_tested, keys_found, elapsed_time);
-        if(!keys_found){
-            assert(total_states_tested == maximum_states);
-        }
+        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 %.f seconds", total_states_tested, keys_found, elapsed_time);
+                       PrintAndLog("\nFound key: %012"PRIx64"\n", foundkey);
+        } else {
+                       PrintAndLog("Fail! Tested %"PRIu32" states, in %.f seconds", total_states_tested, elapsed_time);
+               }

         // reset this counter for the next call
         nonces_to_bruteforce = 0;
        }
         // reset this counter for the next call
         nonces_to_bruteforce = 0;
        }


@@ -1741,10 +1752,10 @@ int mfnestedhard(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_t trgBloc
                        }
                }
 
                        }
                }
 

-               Tests();
+               //Tests();

 
 

-               PrintAndLog("");
-               PrintAndLog("Sum(a0) = %d", first_byte_Sum);
+               //PrintAndLog("");
+               //PrintAndLog("Sum(a0) = %d", first_byte_Sum);

                // PrintAndLog("Best 10 first bytes: %02x, %02x, %02x, %02x, %02x, %02x, %02x, %02x, %02x, %02x",
                        // best_first_bytes[0],
                        // best_first_bytes[1],
                // PrintAndLog("Best 10 first bytes: %02x, %02x, %02x, %02x, %02x, %02x, %02x, %02x, %02x, %02x",
                        // best_first_bytes[0],
                        // best_first_bytes[1],


@@ -1765,6 +1776,7 @@ int mfnestedhard(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_t trgBloc
                        PrintAndLog("Time for generating key candidates list: %1.0f seconds", ((float)time1)/CLOCKS_PER_SEC);
        
                brute_force();
                        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);
                free_nonces_memory();
                free_statelist_cache();
                free_candidates_memory(candidates);