CHG: NEDAP, changed back the preamble. With new parity check it has a decent detec...

[proxmark3-svn] / client / cmdhfmfhard.c

diff --git a/client/cmdhfmfhard.c b/client/cmdhfmfhard.c
index 15bdd566ff188a8366fe1b484bb795eca1fcebb6..427f503d234aa5cf51f15ce5c33461851cb04911 100644 (file)
--- a/client/cmdhfmfhard.c
+++ b/client/cmdhfmfhard.c
@@ -33,9 +33,6 @@
 #include <malloc.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 GOOD_BYTES_REQUIRED            28
 
@@ -1360,6 +1357,7 @@ static void free_statelist_cache(void)
        }               
 }
 
+uint64_t foundkey = 0;
 size_t keys_found = 0;
 size_t bucket_count = 0;
 statelist_t* buckets[128];
@@ -1609,8 +1607,8 @@ static void* crack_states_thread(void* x){
                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(&foundkey, key);
                 break;
             } else if(keys_found){
                 break;
@@ -1640,8 +1638,8 @@ static void brute_force(void)
         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;
@@ -1650,7 +1648,7 @@ 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);
-        }
+               }
         total_states_tested = 0;
 
         // count number of states to go
@@ -1665,6 +1663,7 @@ static void brute_force(void)
                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
@@ -1679,10 +1678,12 @@ static void brute_force(void)
 
         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);
-        }
+        if(keys_found){
+                       PrintAndLog("Success! Tested %"PRIu32" states, found %u keys after %u 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);
+               }
         // reset this counter for the next call
         nonces_to_bruteforce = 0;
        }
@@ -1741,7 +1742,7 @@ int mfnestedhard(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_t trgBloc
                        }
                }
 
-               Tests();
+               //Tests();
 
                PrintAndLog("");
                PrintAndLog("Sum(a0) = %d", first_byte_Sum);