]> git.zerfleddert.de Git - proxmark3-svn/commitdiff
CHG: fixed the collapsing comments when opening this file in notepad++ Need spaces...
authoriceman1001 <iceman@iuse.se>
Wed, 24 Aug 2016 10:34:34 +0000 (12:34 +0200)
committericeman1001 <iceman@iuse.se>
Wed, 24 Aug 2016 10:34:34 +0000 (12:34 +0200)
armsrc/iso14443a.c

index 642e889953327dcf7f8a17db3fb961040dc609cb..93bed2d5545ba5bf1ce2b7b04c7b22af24665e05 100644 (file)
@@ -876,7 +876,7 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
        uint8_t nonce2_count = 0;
        uint8_t moebius_n_count = 0;
        bool gettingMoebius = false;
-       uint8_t mM = 0; //moebius_modifier for collection storage
+       uint8_t mM = 0; // moebius_modifier for collection storage
 
        
        switch (tagType) {
@@ -918,8 +918,8 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                                uint16_t start = 4 * (0+12);  
                                uint8_t emdata[8];
                                emlGetMemBt( emdata, start, sizeof(emdata));
-                               memcpy(data, emdata, 3); //uid bytes 0-2
-                               memcpy(data+3, emdata+4, 4); //uid bytes 3-7
+                               memcpy(data, emdata, 3); // uid bytes 0-2
+                               memcpy(data+3, emdata+4, 4); // uid bytes 3-7
                                flags |= FLAG_7B_UID_IN_DATA;
                        }
                } break;                
@@ -984,10 +984,10 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
        nonce = bytes_to_num(response5, 4);     
        
        // Prepare GET_VERSION (different for UL EV-1 / NTAG)
-       //uint8_t response7_EV1[] = {0x00, 0x04, 0x03, 0x01, 0x01, 0x00, 0x0b, 0x03, 0xfd, 0xf7};  //EV1 48bytes VERSION.
-       //uint8_t response7_NTAG[] = {0x00, 0x04, 0x04, 0x02, 0x01, 0x00, 0x11, 0x03, 0x01, 0x9e}; //NTAG 215   
+       // uint8_t response7_EV1[] = {0x00, 0x04, 0x03, 0x01, 0x01, 0x00, 0x0b, 0x03, 0xfd, 0xf7};  //EV1 48bytes VERSION.
+       // uint8_t response7_NTAG[] = {0x00, 0x04, 0x04, 0x02, 0x01, 0x00, 0x11, 0x03, 0x01, 0x9e}; //NTAG 215  
        // Prepare CHK_TEARING
-       //uint8_t response9[] =  {0xBD,0x90,0x3f};
+       // uint8_t response9[] =  {0xBD,0x90,0x3f};
        
        #define TAG_RESPONSE_COUNT 10
        tag_response_info_t responses[TAG_RESPONSE_COUNT] = {
@@ -1001,8 +1001,8 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
 
                { .response = response8,   .response_n = sizeof(response8) }  // EV1/NTAG PACK response
        };      
-               //{ .response = response7_NTAG, .response_n = sizeof(response7_NTAG)}, // EV1/NTAG GET_VERSION response
-               //{ .response = response9,      .response_n = sizeof(response9)     }  // EV1/NTAG CHK_TEAR response
+               // { .response = response7_NTAG, .response_n = sizeof(response7_NTAG)}, // EV1/NTAG GET_VERSION response
+               // { .response = response9,      .response_n = sizeof(response9)     }  // EV1/NTAG CHK_TEAR response
        
 
        // Allocate 512 bytes for the dynamic modulation, created when the reader queries for it
@@ -1081,7 +1081,7 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                        uint8_t block = receivedCmd[1];
                        // if Ultralight or NTAG (4 byte blocks)
                        if ( tagType == 7 || tagType == 2 ) {
-                               //first 12 blocks of emu are [getversion answer - check tearing - pack - 0x00 - signature]
+                               // first 12 blocks of emu are [getversion answer - check tearing - pack - 0x00 - signature]
                                uint16_t start = 4 * (block+12);  
                                uint8_t emdata[MAX_MIFARE_FRAME_SIZE];
                                emlGetMemBt( emdata, start, 16);
@@ -1094,14 +1094,14 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                                emlGetMemBt( emdata, block, 16);
                                AppendCrc14443a(emdata, 16);
                                EmSendCmdEx(emdata, sizeof(emdata), false);
-                               //EmSendCmdEx(data+(4*receivedCmd[1]),16,false);
+                               // EmSendCmdEx(data+(4*receivedCmd[1]),16,false);
                                // Dbprintf("Read request from reader: %x %x",receivedCmd[0],receivedCmd[1]);
                                // We already responded, do not send anything with the EmSendCmd14443aRaw() that is called below
                                p_response = NULL;
                        }
                } else if(receivedCmd[0] == MIFARE_ULEV1_FASTREAD) {    // Received a FAST READ (ranged read)                           
                        uint8_t emdata[MAX_FRAME_SIZE];
-                       //first 12 blocks of emu are [getversion answer - check tearing - pack - 0x00 - signature]
+                       // first 12 blocks of emu are [getversion answer - check tearing - pack - 0x00 - signature]
                        int start =  (receivedCmd[1]+12) * 4; 
                        int len   = (receivedCmd[2] - receivedCmd[1] + 1) * 4;
                        emlGetMemBt( emdata, start, len);
@@ -1109,7 +1109,7 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                        EmSendCmdEx(emdata, len+2, false);                              
                        p_response = NULL;              
                } else if(receivedCmd[0] == MIFARE_ULEV1_READSIG && tagType == 7) {     // Received a READ SIGNATURE -- 
-                       //first 12 blocks of emu are [getversion answer - check tearing - pack - 0x00 - signature]
+                       // first 12 blocks of emu are [getversion answer - check tearing - pack - 0x00 - signature]
                        uint16_t start = 4 * 4;
                        uint8_t emdata[34];
                        emlGetMemBt( emdata, start, 32);
@@ -1136,7 +1136,7 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                        EmSendCmdEx(ack,sizeof(ack),false);
                        p_response = NULL;                      
                } else if(receivedCmd[0] == MIFARE_ULEV1_CHECKTEAR && tagType == 7) {   // Received a CHECK_TEARING_EVENT -- 
-                       //first 12 blocks of emu are [getversion answer - check tearing - pack - 0x00 - signature]
+                       // first 12 blocks of emu are [getversion answer - check tearing - pack - 0x00 - signature]
                        uint8_t emdata[3];
                        uint8_t counter=0;
                        if (receivedCmd[1]<3) counter = receivedCmd[1];
@@ -1237,7 +1237,7 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                } else if (receivedCmd[0] == MIFARE_ULC_AUTH_1 ) { // ULC authentication, or Desfire Authentication
                } else if (receivedCmd[0] == MIFARE_ULEV1_AUTH) { // NTAG / EV-1 authentication
                        if ( tagType == 7 ) {
-                               uint16_t start = 13; //first 4 blocks of emu are [getversion answer - check tearing - pack - 0x00]
+                               uint16_t start = 13; // first 4 blocks of emu are [getversion answer - check tearing - pack - 0x00]
                                uint8_t emdata[4];
                                emlGetMemBt( emdata, start, 2);
                                AppendCrc14443a(emdata, 2);
@@ -2142,28 +2142,12 @@ int32_t dist_nt(uint32_t nt1, uint32_t nt2) {
 
        if (nt1 == nt2) return 0;
        
-       uint16_t i;
        uint32_t nttmp1 = nt1;
        uint32_t nttmp2 = nt2;
 
-       for (i = 1; i < (32768/8); ++i) {
+       for (uint16_t i = 1; i < 0xFFFF; ++i) {
                nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i;
                nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -i;
-               
-               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+1;
-               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+1);
-               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+2;
-               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+2);
-               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+3;
-               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+3);
-               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+4;
-               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+4);
-               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+5;
-               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+5);
-               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+6;
-               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+6);
-               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+7;
-               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+7);
        }       
        // either nt1 or nt2 are invalid nonces 
        return(-99999); 
@@ -2175,6 +2159,7 @@ int32_t dist_nt(uint32_t nt1, uint32_t nt2) {
 // Cloning MiFare Classic Rail and Building Passes, Anywhere, Anytime"
 // (article by Nicolas T. Courtois, 2009)
 //-----------------------------------------------------------------------------
+
 void ReaderMifare(bool first_try, uint8_t block, uint8_t keytype ) {
        
        uint8_t mf_auth[]       = { keytype, block, 0x00, 0x00 };
@@ -2221,10 +2206,12 @@ void ReaderMifare(bool first_try, uint8_t block, uint8_t keytype ) {
        sync_time = GetCountSspClk() & 0xfffffff8;
        // iceman,  i add 1130 because during my observations this makse the syncronization much fast to sync.
        sync_cycles = PRNG_SEQUENCE_LENGTH + 1130; //65536;     // Mifare Classic's random generator repeats every 2^16 cycles (and so do the nonces).          
-
+       nt_attacked = 0;
+       
+   if (MF_DBGLEVEL >= 4)       Dbprintf("Mifare::Sync %08x", sync_time);
+                               
        if (first_try) {
-               mf_nr_ar3 = 0;                  
-               nt_attacked = 0;
+               mf_nr_ar3 = 0;
                par_low = 0;
        } else {
                // we were unsuccessful on a previous call. 
@@ -2293,11 +2280,9 @@ void ReaderMifare(bool first_try, uint8_t block, uint8_t keytype ) {
                // Transmit reader nonce with fake par
                ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par, NULL);
        
-               WDT_HIT();
-               LED_B_ON();
                // we didn't calibrate our clock yet,
                // iceman: has to be calibrated every time.
-               if (previous_nt && !nt_attacked) { 
+               if (first_try &&  previous_nt && !nt_attacked) { 
 
                        nt_distance = dist_nt(previous_nt, nt);
                        
@@ -2426,6 +2411,7 @@ void ReaderMifare(bool first_try, uint8_t block, uint8_t keytype ) {
        set_tracing(FALSE);
 }
 
+
 /**
   *MIFARE 1K simulate.
   *
@@ -2456,7 +2442,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
        struct Crypto1State mpcs = {0, 0};
        struct Crypto1State *pcs;
        pcs = &mpcs;
-       uint32_t numReads = 0;  //Counts numer of times reader read a block
+       uint32_t numReads = 0;  // Counts numer of times reader read a block
        uint8_t receivedCmd[MAX_MIFARE_FRAME_SIZE] = {0x00};
        uint8_t receivedCmd_par[MAX_MIFARE_PARITY_SIZE] = {0x00};
        uint8_t response[MAX_MIFARE_FRAME_SIZE] = {0x00};
@@ -2466,14 +2452,14 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
        uint8_t sak_4[]  = {0x0C, 0x00, 0x00}; // CL1 - 4b uid
        uint8_t sak_7[]  = {0x0C, 0x00, 0x00}; // CL2 - 7b uid
        uint8_t sak_10[] = {0x0C, 0x00, 0x00}; // CL3 - 10b uid
-       //uint8_t sak[] = {0x09, 0x3f, 0xcc };  // Mifare Mini 
+       // uint8_t sak[] = {0x09, 0x3f, 0xcc };  // Mifare Mini 
        
        uint8_t rUIDBCC1[] = {0xde, 0xad, 0xbe, 0xaf, 0x62}; 
        uint8_t rUIDBCC2[] = {0xde, 0xad, 0xbe, 0xaf, 0x62}; 
        uint8_t rUIDBCC3[] = {0xde, 0xad, 0xbe, 0xaf, 0x62};
 
        uint8_t rAUTH_NT[] = {0x01, 0x01, 0x01, 0x01};  // very random nonce
-       //uint8_t rAUTH_NT[] = {0x55, 0x41, 0x49, 0x92};// nonce from nested? why this?
+       // uint8_t rAUTH_NT[] = {0x55, 0x41, 0x49, 0x92};// nonce from nested? why this?
        uint8_t rAUTH_AT[] = {0x00, 0x00, 0x00, 0x00};
                
        // Here, we collect CUID, NT, NR, AR, CUID2, NT2, NR2, AR2
@@ -2485,7 +2471,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
        uint32_t nonce = bytes_to_num(rAUTH_NT, 4);
        ar_nr_responses[1] = nonce;
        
-       //-- Determine the UID
+       // -- Determine the UID
        // Can be set from emulator memory or incoming data
        // Length: 4,7,or 10 bytes
        if ( (flags & FLAG_UID_IN_EMUL) == FLAG_UID_IN_EMUL)
@@ -2601,14 +2587,14 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                } 
                if (cardSTATE == MFEMUL_NOFIELD) continue;
 
-               //Now, get data
+               // Now, get data
                res = EmGetCmd(receivedCmd, &len, receivedCmd_par);
                if (res == 2) { //Field is off!
                        cardSTATE = MFEMUL_NOFIELD;
                        LEDsoff();
                        continue;
                } else if (res == 1) {
-                       break;  //return value 1 means button press
+                       break;  // return value 1 means button press
                }
                        
                // REQ or WUP request in ANY state and WUP in HALTED state
@@ -2725,16 +2711,16 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                                uint32_t nr = bytes_to_num(receivedCmd, 4);
                                uint32_t ar = bytes_to_num(&receivedCmd[4], 4);
 
-                               //Collect AR/NR
-                               //if(ar_nr_collected < 2 && cardAUTHSC == 2){
+                               // Collect AR/NR
+                               // if(ar_nr_collected < 2 && cardAUTHSC == 2){
                                if(ar_nr_collected < 2) {                                       
-                                       //if(ar_nr_responses[2] != nr) {
+                                       // if(ar_nr_responses[2] != nr) {
                                                ar_nr_responses[ar_nr_collected*4]   = cuid;
                                                ar_nr_responses[ar_nr_collected*4+1] = nonce;
                                                ar_nr_responses[ar_nr_collected*4+2] = nr;
                                                ar_nr_responses[ar_nr_collected*4+3] = ar;
                                                ar_nr_collected++;
-                                       //                                    
+                                       // }                                    
                
                                        // Interactive mode flag, means we need to send ACK
                                        finished = ( ((flags & FLAG_INTERACTIVE) == FLAG_INTERACTIVE)&& ar_nr_collected == 2);
@@ -2795,7 +2781,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
 
                                        if (!encrypted_data) { 
                                                // first authentication
-                                               crypto1_word(pcs, cuid ^ nonce, 0);//Update crypto state
+                                               crypto1_word(pcs, cuid ^ nonce, 0);// Update crypto state
                                                num_to_bytes(nonce, 4, rAUTH_AT); // Send nonce
                                                
                                                if (MF_DBGLEVEL >= 4) Dbprintf("Reader authenticating for block %d (0x%02x) with key %d",receivedCmd[1] ,receivedCmd[1],cardAUTHKEY  );
@@ -2975,7 +2961,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
 
        // Interactive mode flag, means we need to send ACK
        if((flags & FLAG_INTERACTIVE) == FLAG_INTERACTIVE) {
-               //May just aswell send the collected ar_nr in the response aswell
+               // May just aswell send the collected ar_nr in the response aswell
                uint8_t len = ar_nr_collected * 4 * 4;
                cmd_send(CMD_ACK, CMD_SIMULATE_MIFARE_CARD, len, 0, &ar_nr_responses, len);
        }
@@ -2988,7 +2974,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                                        ar_nr_responses[1], // NT1
                                        ar_nr_responses[2], // NR1
                                        ar_nr_responses[3], // AR1
-                                       //ar_nr_responses[4], // CUID2
+                                       // ar_nr_responses[4], // CUID2
                                        ar_nr_responses[5],  // NT2
                                        ar_nr_responses[6], // NR2
                                        ar_nr_responses[7]  // AR2
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