Implemented new optimized version of MAC-calculation for iclass

[proxmark3-svn] / armsrc / mifareutil.c

diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c
index 976f6dca7651ca54436b45b6b8df11b2a5b01c42..f79c2ede2d78676ddc6aef7b373129e3198a23ca 100644 (file)
--- a/armsrc/mifareutil.c
+++ b/armsrc/mifareutil.c
@@ -21,17 +21,6 @@
 \r
 int MF_DBGLEVEL = MF_DBG_ALL;\r
 \r
 \r
 int MF_DBGLEVEL = MF_DBG_ALL;\r
 \r

-// memory management\r
-uint8_t* get_bigbufptr_recvrespbuf(void) {\r
-       return (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);        \r
-}\r
-uint8_t* get_bigbufptr_recvcmdbuf(void) {\r
-       return (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); \r
-}\r
-uint8_t* get_bigbufptr_emlcardmem(void) {\r
-       return (((uint8_t *)BigBuf) + CARD_MEMORY_OFFSET);\r
-}\r
-\r

 // crypto1 helpers\r
 void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){\r
        uint8_t bt = 0;\r
 // crypto1 helpers\r
 void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){\r
        uint8_t bt = 0;\r


@@ -93,10 +82,30 @@ int mifare_sendcmd_short_special(struct Crypto1State *pcs, uint8_t crypted, uint
        AppendCrc14443a(dcmd, 6);
        ReaderTransmit(dcmd, sizeof(dcmd), NULL);
        int len = ReaderReceive(answer, answer_parity);
        AppendCrc14443a(dcmd, 6);
        ReaderTransmit(dcmd, sizeof(dcmd), NULL);
        int len = ReaderReceive(answer, answer_parity);

-       if(!len)
-       {
+       if(!len) {

                 if (MF_DBGLEVEL >= 1)   Dbprintf("Authentication failed. Card timeout.");
                 return 2;
                 if (MF_DBGLEVEL >= 1)   Dbprintf("Authentication failed. Card timeout.");
                 return 2;

+    }\r
+       return len;\r
+}\r
+\r
+int mifare_sendcmd_short_mfucauth(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t *data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)\r
+{\r
+    uint8_t dcmd[19];\r
+       int len; \r
+    dcmd[0] = cmd;\r
+    memcpy(dcmd+1,data,16);\r
+       AppendCrc14443a(dcmd, 17);\r
+       \r
+       ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
+       len = ReaderReceive(answer, answer_parity);\r
+       if(!len) {\r
+        if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("Authentication failed. Card timeout.");\r
+        len = ReaderReceive(answer,answer_parity);\r
+    }\r
+    if(len==1) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("NAK - Authentication failed.");\r
+               return 1;\r

         }
        return len;
 }
         }
        return len;
 }


@@ -166,8 +175,8 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
        uint32_t nt, ntpp; // Supplied tag nonce\r
        \r
        uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };\r
        uint32_t nt, ntpp; // Supplied tag nonce\r
        \r
        uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };\r

-       uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r

        \r
        // Transmit MIFARE_CLASSIC_AUTH\r
        len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer, receivedAnswerPar, timing);\r
        \r
        // Transmit MIFARE_CLASSIC_AUTH\r
        len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer, receivedAnswerPar, timing);\r


@@ -253,8 +262,8 @@ int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blo
        int len;        \r
        uint8_t bt[2];\r
        \r
        int len;        \r
        uint8_t bt[2];\r
        \r

-       uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r

        \r
        // command MIFARE_CLASSIC_READBLOCK\r
        len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
        \r
        // command MIFARE_CLASSIC_READBLOCK\r
        len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r


@@ -278,12 +287,63 @@ int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blo
        return 0;
 }
 
        return 0;
 }
 

+// mifare ultralight commands\r
+int mifare_ultra_auth1(uint32_t uid, uint8_t *blockData){\r
+\r
+       uint16_t len;\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
+       \r
+       len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,receivedAnswerPar ,NULL);\r
+       if (len == 1) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+                       Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
+               return 1;\r
+       }\r
+       if (len != 11)\r
+               return 1;\r
+\r
+       if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
+               Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
+                       receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
+                       receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
+                       receivedAnswer[10]);\r
+               }\r
+       memcpy(blockData, receivedAnswer, 11);\r
+       return 0;\r
+}\r
+\r
+int mifare_ultra_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){\r
+\r
+       uint16_t len;\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
+       \r
+       len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, key, receivedAnswer, receivedAnswerPar, NULL);\r
+       if (len == 1) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+                       Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
+               return 1;\r
+       }\r
+       if (len != 11)\r
+               return 1;       \r
+       \r
+       if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
+               Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
+                       receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
+                       receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
+                       receivedAnswer[10]);\r
+       }\r
+       memcpy(blockData, receivedAnswer, 11);\r
+       return 0;\r
+}\r
+\r

 int mifare_ultra_readblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData)
 {
        uint16_t len;
        uint8_t bt[2];
 int mifare_ultra_readblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData)
 {
        uint16_t len;
        uint8_t bt[2];

-       uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r

        
        \r
        // command MIFARE_CLASSIC_READBLOCK
        
        \r
        // command MIFARE_CLASSIC_READBLOCK


@@ -321,8 +381,8 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl
        byte_t res;\r
        \r
        uint8_t d_block[18], d_block_enc[18];\r
        byte_t res;\r
        \r
        uint8_t d_block[18], d_block_enc[18];\r

-       uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r

        \r
        // command MIFARE_CLASSIC_WRITEBLOCK\r
        len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
        \r
        // command MIFARE_CLASSIC_WRITEBLOCK\r
        len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r


@@ -364,8 +424,8 @@ int mifare_ultra_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData)
     uint16_t len;     
     uint8_t par[3] = {0};  // enough for 18 parity bits
        uint8_t d_block[18] = {0x00};
     uint16_t len;     
     uint8_t par[3] = {0};  // enough for 18 parity bits
        uint8_t d_block[18] = {0x00};

-    uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r

         
     // command MIFARE_CLASSIC_WRITEBLOCK
     len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);
         
     // command MIFARE_CLASSIC_WRITEBLOCK
     len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);


@@ -395,8 +455,8 @@ int mifare_ultra_special_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *bloc
 {
     uint16_t len;
        uint8_t d_block[8] = {0x00};
 {
     uint16_t len;
        uint8_t d_block[8] = {0x00};

-    uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r

 
     // command MIFARE_CLASSIC_WRITEBLOCK
        d_block[0]= blockNo;
 
     // command MIFARE_CLASSIC_WRITEBLOCK
        d_block[0]= blockNo;


@@ -416,8 +476,8 @@ int mifare_ultra_special_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *bloc
 int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) 
 {
        uint16_t len;   \r
 int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) 
 {
        uint16_t len;   \r

-       uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r

 \r
        len = mifare_sendcmd_short(pcs, pcs == NULL ? false:true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);\r
        if (len != 0) {\r
 \r
        len = mifare_sendcmd_short(pcs, pcs == NULL ? false:true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);\r
        if (len != 0) {\r


@@ -432,8 +492,8 @@ int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid)
 int mifare_ultra_halt(uint32_t uid)
 {
        uint16_t len;
 int mifare_ultra_halt(uint32_t uid)
 {
        uint16_t len;

-       uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r

     
        len = mifare_sendcmd_short(NULL, true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);
        if (len != 0) {
     
        len = mifare_sendcmd_short(NULL, true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);
        if (len != 0) {


@@ -467,22 +527,22 @@ uint8_t FirstBlockOfSector(uint8_t sectorNo)
 \r
 // work with emulator memory
 void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {
 \r
 // work with emulator memory
 void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {

-       uint8_t* emCARD = get_bigbufptr_emlcardmem();
+       uint8_t* emCARD = BigBuf_get_EM_addr();

        memcpy(emCARD + blockNum * 16, data, blocksCount * 16);\r
 }\r
 \r
 void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {\r
        memcpy(emCARD + blockNum * 16, data, blocksCount * 16);\r
 }\r
 \r
 void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {\r

-       uint8_t* emCARD = get_bigbufptr_emlcardmem();\r
+       uint8_t* emCARD = BigBuf_get_EM_addr();\r

        memcpy(data, emCARD + blockNum * 16, blocksCount * 16);\r
 }\r
 \r
 void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) {\r
        memcpy(data, emCARD + blockNum * 16, blocksCount * 16);\r
 }\r
 \r
 void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) {\r

-       uint8_t* emCARD = get_bigbufptr_emlcardmem();\r
+       uint8_t* emCARD = BigBuf_get_EM_addr();\r

        memcpy(data, emCARD + bytePtr, byteCount);\r
 }\r
 \r
 int emlCheckValBl(int blockNum) {\r
        memcpy(data, emCARD + bytePtr, byteCount);\r
 }\r
 \r
 int emlCheckValBl(int blockNum) {\r

-       uint8_t* emCARD = get_bigbufptr_emlcardmem();\r
+       uint8_t* emCARD = BigBuf_get_EM_addr();\r

        uint8_t* data = emCARD + blockNum * 16;\r
 \r
        if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) ||\r
        uint8_t* data = emCARD + blockNum * 16;\r
 \r
        if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) ||\r


@@ -497,7 +557,7 @@ int emlCheckValBl(int blockNum) {
 }\r
 \r
 int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {\r
 }\r
 \r
 int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {\r

-       uint8_t* emCARD = get_bigbufptr_emlcardmem();\r
+       uint8_t* emCARD = BigBuf_get_EM_addr();\r

        uint8_t* data = emCARD + blockNum * 16;\r
        \r
        if (emlCheckValBl(blockNum)) {\r
        uint8_t* data = emCARD + blockNum * 16;\r
        \r
        if (emlCheckValBl(blockNum)) {\r


@@ -510,7 +570,7 @@ int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {
 }\r
 \r
 int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {\r
 }\r
 \r
 int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {\r

-       uint8_t* emCARD = get_bigbufptr_emlcardmem();\r
+       uint8_t* emCARD = BigBuf_get_EM_addr();\r

        uint8_t* data = emCARD + blockNum * 16;\r
        \r
        memcpy(data + 0, &blReg, 4);\r
        uint8_t* data = emCARD + blockNum * 16;\r
        \r
        memcpy(data + 0, &blReg, 4);\r


@@ -528,7 +588,7 @@ int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {
 \r
 uint64_t emlGetKey(int sectorNum, int keyType) {\r
        uint8_t key[6];\r
 \r
 uint64_t emlGetKey(int sectorNum, int keyType) {\r
        uint8_t key[6];\r

-       uint8_t* emCARD = get_bigbufptr_emlcardmem();\r
+       uint8_t* emCARD = BigBuf_get_EM_addr();\r

        \r
        memcpy(key, emCARD + 16 * (FirstBlockOfSector(sectorNum) + NumBlocksPerSector(sectorNum) - 1) + keyType * 10, 6);\r
        return bytes_to_num(key, 6);\r
        \r
        memcpy(key, emCARD + 16 * (FirstBlockOfSector(sectorNum) + NumBlocksPerSector(sectorNum) - 1) + keyType * 10, 6);\r
        return bytes_to_num(key, 6);\r


@@ -539,7 +599,7 @@ void emlClearMem(void) {
        \r
        const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};\r
        const uint8_t uid[]   =   {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};\r
        \r
        const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};\r
        const uint8_t uid[]   =   {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};\r

-       uint8_t* emCARD = get_bigbufptr_emlcardmem();\r
+       uint8_t* emCARD = BigBuf_get_EM_addr();\r

        \r
        memset(emCARD, 0, CARD_MEMORY_SIZE);\r
        \r
        \r
        memset(emCARD, 0, CARD_MEMORY_SIZE);\r
        \r


@@ -552,3 +612,98 @@ void emlClearMem(void) {
        emlSetMem((uint8_t *)uid, 0, 1);\r
        return;\r
 }\r
        emlSetMem((uint8_t *)uid, 0, 1);\r
        return;\r
 }\r

+\r
+\r
+// Mifare desfire commands\r
+int mifare_sendcmd_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)\r
+{\r
+    uint8_t dcmd[5] = {0x00};\r
+    dcmd[0] = cmd;\r
+    memcpy(dcmd+1,data,2);\r
+       AppendCrc14443a(dcmd, 3);\r
+       \r
+       ReaderTransmit(dcmd, sizeof(dcmd), NULL);\r
+       int len = ReaderReceive(answer, answer_parity);\r
+       if(!len) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) \r
+                       Dbprintf("Authentication failed. Card timeout.");\r
+               return 1;\r
+    }\r
+       return len;\r
+}\r
+\r
+int mifare_sendcmd_special2(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer,uint8_t *answer_parity, uint32_t *timing)\r
+{\r
+    uint8_t dcmd[20] = {0x00};\r
+    dcmd[0] = cmd;\r
+    memcpy(dcmd+1,data,17);\r
+       AppendCrc14443a(dcmd, 18);\r
+\r
+       ReaderTransmit(dcmd, sizeof(dcmd), NULL);\r
+       int len = ReaderReceive(answer, answer_parity);\r
+       if(!len){\r
+        if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+                       Dbprintf("Authentication failed. Card timeout.");\r
+               return 1;\r
+    }\r
+       return len;\r
+}\r
+\r
+int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData){\r
+\r
+       int len;\r
+       // load key, keynumber\r
+       uint8_t data[2]={0x0a, 0x00};\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
+       \r
+       len = mifare_sendcmd_special(NULL, 1, 0x02, data, receivedAnswer,receivedAnswerPar,NULL);\r
+       if (len == 1) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+                       Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
+               return 1;\r
+       }\r
+       \r
+       if (len == 12) {\r
+               if (MF_DBGLEVEL >= MF_DBG_EXTENDED)     {\r
+                       Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
+                               receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
+                               receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
+                               receivedAnswer[10],receivedAnswer[11]);\r
+                       }\r
+                       memcpy(blockData, receivedAnswer, 12);\r
+               return 0;\r
+       }\r
+       return 1;\r
+}\r
+\r
+int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){\r
+\r
+       int len;\r
+       uint8_t data[17] = {0x00};\r
+       data[0] = 0xAF;\r
+       memcpy(data+1,key,16);\r
+       \r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
+       \r
+       len = mifare_sendcmd_special2(NULL, 1, 0x03, data, receivedAnswer, receivedAnswerPar ,NULL);\r
+       \r
+       if ((receivedAnswer[0] == 0x03) && (receivedAnswer[1] == 0xae)) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+                       Dbprintf("Auth Error: %02x %02x", receivedAnswer[0], receivedAnswer[1]);\r
+               return 1;\r
+       }\r
+       \r
+       if (len == 12){\r
+               if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
+                       Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
+                               receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
+                               receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
+                               receivedAnswer[10],receivedAnswer[11]);\r
+                       }\r
+               memcpy(blockData, receivedAnswer, 12);\r
+               return 0;\r
+       }\r
+       return 1;\r
+}