CHG: removed a -L path for OSX

[proxmark3-svn] / armsrc / iso14443a.c

diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c
index 4bd55fb3b75d77681120a6d4c4b3150731aa63c6..d069550144251d8d08772a3590b5deb7fac3d7d6 100644 (file)
--- a/armsrc/iso14443a.c
+++ b/armsrc/iso14443a.c
@@ -849,6 +849,8 @@ bool prepare_allocated_tag_modulation(tag_response_info_t* response_info) {
 //-----------------------------------------------------------------------------
 void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
 
 //-----------------------------------------------------------------------------
 void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
 

+       #define ATTACK_KEY_COUNT 8 // keep same as define in cmdhfmf.c -> readerAttack()
+       

        uint8_t sak = 0;
        uint32_t cuid = 0;                      
        uint32_t nonce = 0;
        uint8_t sak = 0;
        uint32_t cuid = 0;                      
        uint32_t nonce = 0;


@@ -866,7 +868,7 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
        uint8_t cardAUTHSC = 0;
        uint8_t cardAUTHKEY = 0xff;  // no authentication
        // allow collecting up to 8 sets of nonces to allow recovery of up to 8 keys
        uint8_t cardAUTHSC = 0;
        uint8_t cardAUTHKEY = 0xff;  // no authentication
        // allow collecting up to 8 sets of nonces to allow recovery of up to 8 keys

-       #define ATTACK_KEY_COUNT 8 // keep same as define in cmdhfmf.c -> readerAttack()
+

        nonces_t ar_nr_resp[ATTACK_KEY_COUNT*2]; // for 2 separate attack types (nml, moebius)
        memset(ar_nr_resp, 0x00, sizeof(ar_nr_resp));
 
        nonces_t ar_nr_resp[ATTACK_KEY_COUNT*2]; // for 2 separate attack types (nml, moebius)
        memset(ar_nr_resp, 0x00, sizeof(ar_nr_resp));
 


@@ -972,16 +974,17 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
        response3a[0] = sak & 0xFB;
        ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
 
        response3a[0] = sak & 0xFB;
        ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
 

-       uint8_t response5[] = { 0x01, 0x01, 0x01, 0x01 };                               // Very random tag nonce
+       // Tag NONCE.
+       uint8_t response5[4]; 
+       nonce = prand();
+       num_to_bytes(nonce, 4, response5);
+       

        uint8_t response6[] = { 0x04, 0x58, 0x80, 0x02, 0x00, 0x00 };   // dummy ATS (pseudo-ATR), answer to RATS: 
        // Format byte = 0x58: FSCI=0x08 (FSC=256), TA(1) and TC(1) present, 
        // TA(1) = 0x80: different divisors not supported, DR = 1, DS = 1
        // TB(1) = not present. Defaults: FWI = 4 (FWT = 256 * 16 * 2^4 * 1/fc = 4833us), SFGI = 0 (SFG = 256 * 16 * 2^0 * 1/fc = 302us)
        // TC(1) = 0x02: CID supported, NAD not supported
        ComputeCrc14443(CRC_14443_A, response6, 4, &response6[4], &response6[5]);
        uint8_t response6[] = { 0x04, 0x58, 0x80, 0x02, 0x00, 0x00 };   // dummy ATS (pseudo-ATR), answer to RATS: 
        // Format byte = 0x58: FSCI=0x08 (FSC=256), TA(1) and TC(1) present, 
        // TA(1) = 0x80: different divisors not supported, DR = 1, DS = 1
        // TB(1) = not present. Defaults: FWI = 4 (FWT = 256 * 16 * 2^4 * 1/fc = 4833us), SFGI = 0 (SFG = 256 * 16 * 2^0 * 1/fc = 302us)
        // TC(1) = 0x02: CID supported, NAD not supported
        ComputeCrc14443(CRC_14443_A, response6, 4, &response6[4], &response6[5]);

-
-       // the randon nonce
-       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.
        
        // 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.


@@ -1058,7 +1061,7 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                }
                
                // incease nonce at every command recieved
                }
                
                // incease nonce at every command recieved

-               nonce++;
+               nonce = prand();

                num_to_bytes(nonce, 4, response5);
                
                p_response = NULL;
                num_to_bytes(nonce, 4, response5);
                
                p_response = NULL;


@@ -1173,8 +1176,16 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
 
                        // Collect AR/NR per keytype & sector
                        if ( (flags & FLAG_NR_AR_ATTACK) == FLAG_NR_AR_ATTACK ) {
 
                        // Collect AR/NR per keytype & sector
                        if ( (flags & FLAG_NR_AR_ATTACK) == FLAG_NR_AR_ATTACK ) {

+                               

                                        for (uint8_t i = 0; i < ATTACK_KEY_COUNT; i++) {
                                        for (uint8_t i = 0; i < ATTACK_KEY_COUNT; i++) {

-                                               if ( ar_nr_collected[i+mM]==0 || ((cardAUTHSC == ar_nr_resp[i+mM].sector) && (cardAUTHKEY == ar_nr_resp[i+mM].keytype) && (ar_nr_collected[i+mM] > 0)) ) {
+                                               
+                                               if ( ar_nr_collected[i+mM] == 0 || (
+                                                                       (cardAUTHSC == ar_nr_resp[i+mM].sector) && 
+                                                                       (cardAUTHKEY == ar_nr_resp[i+mM].keytype) &&
+                                                                       (ar_nr_collected[i+mM] > 0)
+                                                               )
+                                                       ) {
+                                                               

                                                        // if first auth for sector, or matches sector and keytype of previous auth
                                                        if (ar_nr_collected[i+mM] < 2) {
                                                                // if we haven't already collected 2 nonces for this sector
                                                        // if first auth for sector, or matches sector and keytype of previous auth
                                                        if (ar_nr_collected[i+mM] < 2) {
                                                                // if we haven't already collected 2 nonces for this sector


@@ -1360,7 +1371,7 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
        BigBuf_free_keep_EM();
        LED_A_OFF();
        
        BigBuf_free_keep_EM();
        LED_A_OFF();
        

-               if(flags & FLAG_NR_AR_ATTACK && MF_DBGLEVEL >= 1) {
+       if(flags & FLAG_NR_AR_ATTACK && MF_DBGLEVEL >= 1) {

                for ( uint8_t   i = 0; i < ATTACK_KEY_COUNT; i++) {
                        if (ar_nr_collected[i] == 2) {
                                Dbprintf("Collected two pairs of AR/NR which can be used to extract %s from reader for sector %d:", (i<ATTACK_KEY_COUNT/2) ? "keyA" : "keyB", ar_nr_resp[i].sector);
                for ( uint8_t   i = 0; i < ATTACK_KEY_COUNT; i++) {
                        if (ar_nr_collected[i] == 2) {
                                Dbprintf("Collected two pairs of AR/NR which can be used to extract %s from reader for sector %d:", (i<ATTACK_KEY_COUNT/2) ? "keyA" : "keyB", ar_nr_resp[i].sector);


@@ -1866,6 +1877,9 @@ int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, u
                        memset(uid_ptr,0,10);
        }
 
                        memset(uid_ptr,0,10);
        }
 

+       // reset the PCB block number
+       iso14_pcb_blocknum = 0;
+       

        // check for proprietary anticollision:
        if ((resp[0] & 0x1F) == 0) return 3;
        
        // check for proprietary anticollision:
        if ((resp[0] & 0x1F) == 0) return 3;
        


@@ -1977,12 +1991,8 @@ int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, u
                p_hi14a_card->ats_len = len;
        }
 
                p_hi14a_card->ats_len = len;
        }
 

-       // reset the PCB block number
-       iso14_pcb_blocknum = 0;
-

        // set default timeout based on ATS
        iso14a_set_ATS_timeout(resp);
        // set default timeout based on ATS
        iso14a_set_ATS_timeout(resp);

-

        return 1;       
 }
 
        return 1;       
 }
 


@@ -2086,17 +2096,17 @@ void ReaderIso14443a(UsbCommand *c) {
        }
 
        if (param & ISO14A_RAW) {
        }
 
        if (param & ISO14A_RAW) {

-               if(param & ISO14A_APPEND_CRC) {
-                       if(param & ISO14A_TOPAZMODE) {
+               if (param & ISO14A_APPEND_CRC) {
+                       if (param & ISO14A_TOPAZMODE)

                                AppendCrc14443b(cmd,len);
                                AppendCrc14443b(cmd,len);

-                       } else {
+                       else

                                AppendCrc14443a(cmd,len);
                                AppendCrc14443a(cmd,len);

-                       }
+                       

                        len += 2;
                        if (lenbits) lenbits += 16;
                }
                        len += 2;
                        if (lenbits) lenbits += 16;
                }

-               if(lenbits>0) {                         // want to send a specific number of bits (e.g. short commands)
-                       if(param & ISO14A_TOPAZMODE) {
+               if (lenbits>0) {                                // want to send a specific number of bits (e.g. short commands)
+                       if (param & ISO14A_TOPAZMODE) {

                                int bits_to_send = lenbits;
                                uint16_t i = 0;
                                ReaderTransmitBitsPar(&cmd[i++], MIN(bits_to_send, 7), NULL, NULL);             // first byte is always short (7bits) and no parity
                                int bits_to_send = lenbits;
                                uint16_t i = 0;
                                ReaderTransmitBitsPar(&cmd[i++], MIN(bits_to_send, 7), NULL, NULL);             // first byte is always short (7bits) and no parity


@@ -2110,7 +2120,7 @@ void ReaderIso14443a(UsbCommand *c) {
                                ReaderTransmitBitsPar(cmd, lenbits, par, NULL);                                                 // bytes are 8 bit with odd parity
                        }
                } else {                                        // want to send complete bytes only
                                ReaderTransmitBitsPar(cmd, lenbits, par, NULL);                                                 // bytes are 8 bit with odd parity
                        }
                } else {                                        // want to send complete bytes only

-                       if(param & ISO14A_TOPAZMODE) {
+                       if (param & ISO14A_TOPAZMODE) {

                                uint16_t i = 0;
                                ReaderTransmitBitsPar(&cmd[i++], 7, NULL, NULL);                                                // first byte: 7 bits, no paritiy
                                while (i < len) {
                                uint16_t i = 0;
                                ReaderTransmitBitsPar(&cmd[i++], 7, NULL, NULL);                                                // first byte: 7 bits, no paritiy
                                while (i < len) {


@@ -2216,14 +2226,14 @@ void ReaderMifare(bool first_try, uint8_t block, uint8_t keytype ) {
        
        BigBuf_free(); BigBuf_Clear_ext(false); 
        clear_trace();
        
        BigBuf_free(); BigBuf_Clear_ext(false); 
        clear_trace();

-       set_tracing(TRUE);      
+       set_tracing(FALSE);     

        iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD);
 
        sync_time = GetCountSspClk() & 0xfffffff8;
        sync_cycles = PRNG_SEQUENCE_LENGTH; // Mifare Classic's random generator repeats every 2^16 cycles (and so do the nonces).              
        nt_attacked = 0;
        
        iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD);
 
        sync_time = GetCountSspClk() & 0xfffffff8;
        sync_cycles = PRNG_SEQUENCE_LENGTH; // 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 (MF_DBGLEVEL >= 4)       Dbprintf("Mifare::Sync %u", sync_time);

                                
        if (first_try) {
                mf_nr_ar3 = 0;
                                
        if (first_try) {
                mf_nr_ar3 = 0;


@@ -2473,10 +2483,14 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
        uint8_t rUIDBCC2[] = {0xde, 0xad, 0xbe, 0xaf, 0x62}; 
        uint8_t rUIDBCC3[] = {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
+       // TAG Nonce - Authenticate response
+       uint8_t rAUTH_NT[4];
+       uint32_t nonce = prand();
+       num_to_bytes(nonce, 4, rAUTH_NT);
+       

        // uint8_t rAUTH_NT[] = {0x55, 0x41, 0x49, 0x92};// nonce from nested? why this?
        uint8_t rAUTH_AT[] = {0x00, 0x00, 0x00, 0x00};
        // 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
        // This can be used in a reader-only attack.
        nonces_t ar_nr_resp[ATTACK_KEY_COUNT*2]; // for 2 separate attack types (nml, moebius)
        // Here, we collect CUID, NT, NR, AR, CUID2, NT2, NR2, AR2
        // This can be used in a reader-only attack.
        nonces_t ar_nr_resp[ATTACK_KEY_COUNT*2]; // for 2 separate attack types (nml, moebius)


@@ -2491,9 +2505,6 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
        uint8_t mM = 0; // moebius_modifier for collection storage
        bool doBufResetNext = false;
 
        uint8_t mM = 0; // moebius_modifier for collection storage
        bool doBufResetNext = false;
 

-       // Authenticate response - nonce
-       uint32_t nonce = bytes_to_num(rAUTH_NT, 4);
-       

        // -- Determine the UID
        // Can be set from emulator memory or incoming data
        // Length: 4,7,or 10 bytes
        // -- Determine the UID
        // Can be set from emulator memory or incoming data
        // Length: 4,7,or 10 bytes


@@ -2629,7 +2640,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                        crypto1_destroy(pcs);
                        cardAUTHKEY = 0xff;
                        LEDsoff();
                        crypto1_destroy(pcs);
                        cardAUTHKEY = 0xff;
                        LEDsoff();

-                       nonce++; 
+                       nonce = prand(); 

                        continue;
                }
                
                        continue;
                }
                


@@ -2744,7 +2755,13 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                                }
 
                                for (uint8_t i = 0; i < ATTACK_KEY_COUNT; i++) {
                                }
 
                                for (uint8_t i = 0; i < ATTACK_KEY_COUNT; i++) {

-                                       if ( ar_nr_collected[i+mM]==0 || ((cardAUTHSC == ar_nr_resp[i+mM].sector) && (cardAUTHKEY == ar_nr_resp[i+mM].keytype) && (ar_nr_collected[i+mM] > 0)) ) {
+                                       
+                                       if ( ar_nr_collected[i+mM] == 0 || (
+                                                               (cardAUTHSC == ar_nr_resp[i+mM].sector) && 
+                                                               (cardAUTHKEY == ar_nr_resp[i+mM].keytype) && 
+                                                               (ar_nr_collected[i+mM] > 0)
+                                                       )
+                                               ) {

 
                                                // if first auth for sector, or matches sector and keytype of previous auth
                                                if (ar_nr_collected[i+mM] < 2) {
 
                                                // if first auth for sector, or matches sector and keytype of previous auth
                                                if (ar_nr_collected[i+mM] < 2) {


@@ -2789,7 +2806,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                                                                                // if we've collected all the nonces we need - finish.
 
                                                                                if (nonce1_count == moebius_n_count) {
                                                                                // if we've collected all the nonces we need - finish.
 
                                                                                if (nonce1_count == moebius_n_count) {

-                                                                                       cmd_send(CMD_ACK,CMD_SIMULATE_MIFARE_CARD,0,0,&ar_nr_resp,sizeof(ar_nr_resp));
+                                                                                       cmd_send(CMD_ACK, CMD_SIMULATE_MIFARE_CARD, 0, 0, &ar_nr_resp, sizeof(ar_nr_resp));

                                                                                        nonce1_count = 0;
                                                                                        nonce2_count = 0;
                                                                                        moebius_n_count = 0;
                                                                                        nonce1_count = 0;
                                                                                        nonce2_count = 0;
                                                                                        moebius_n_count = 0;


@@ -3059,13 +3076,13 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
 
        // Interactive mode flag, means we need to send ACK
        /*
 
        // Interactive mode flag, means we need to send ACK
        /*

-       if((flags & FLAG_INTERACTIVE) == FLAG_INTERACTIVE) {
+       if((flags & FLAG_INTERACTIVE) == FLAG_INTERACTIVE && flags & FLAG_NR_AR_ATTACK == FLAG_NR_AR_ATTACK) {

                // 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);
        }
                // 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);
        }

+       */

        
        

-   */

        if( ((flags & FLAG_NR_AR_ATTACK) == FLAG_NR_AR_ATTACK ) && MF_DBGLEVEL >= 1 ) {
                for ( uint8_t   i = 0; i < ATTACK_KEY_COUNT; i++) {
                        if (ar_nr_collected[i] == 2) {
        if( ((flags & FLAG_NR_AR_ATTACK) == FLAG_NR_AR_ATTACK ) && MF_DBGLEVEL >= 1 ) {
                for ( uint8_t   i = 0; i < ATTACK_KEY_COUNT; i++) {
                        if (ar_nr_collected[i] == 2) {


@@ -3094,10 +3111,10 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                                                );
                        }
                }
                                                );
                        }
                }

-       }
-       
+       }       

        
        

-       if (MF_DBGLEVEL >= 1) Dbprintf("Emulator stopped. Tracing: %d  trace length: %d ", tracing, BigBuf_get_traceLen());
+       if (MF_DBGLEVEL >= 1) 
+               Dbprintf("Emulator stopped. Tracing: %d  trace length: %d ", tracing, BigBuf_get_traceLen());

        
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        LEDsoff();
        
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        LEDsoff();