\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
uint8_t bt = 0;\r
int i;\r
par[0] = 0;\r
+ \r
for (i = 0; i < len; i++) {\r
bt = data[i];\r
data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];\r
- if((i&0x0007) == 0) par[i>>3] = 0;\r
+ if((i&0x0007) == 0) \r
+ par[i>>3] = 0;\r
par[i>>3] |= (((filter(pcs->odd) ^ oddparity(bt)) & 0x01)<<(7-(i&0x0007)));\r
} \r
return;\r
int mifare_sendcmd_short_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)
{
- uint8_t dcmd[8];//, ecmd[4];
- //uint32_t par=0;
-
+ uint8_t dcmd[8];
dcmd[0] = cmd;
dcmd[1] = data[0];
dcmd[2] = data[1];
dcmd[4] = data[3];
dcmd[5] = data[4];
AppendCrc14443a(dcmd, 6);
- //Dbprintf("Data command: %02x", dcmd[0]);
- //Dbprintf("Data R: %02x %02x %02x %02x %02x %02x %02x", dcmd[1],dcmd[2],dcmd[3],dcmd[4],dcmd[5],dcmd[6],dcmd[7]);
-
- //memcpy(ecmd, dcmd, sizeof(dcmd));
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;
+ }\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;\r
}\r
\r
-// mifare commands\r
+// mifare classic commands\r
int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested) \r
{\r
return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL, NULL);\r
int len; \r
uint32_t pos;\r
uint8_t tmp4[4];\r
- uint8_t par[1] = {0};\r
+ uint8_t par[1] = {0x00};\r
byte_t nr[4];\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
if (ntptr)\r
*ntptr = nt;\r
\r
- \r
// Generate (encrypted) nr+parity by loading it into the cipher (Nr)\r
par[0] = 0;\r
for (pos = 0; pos < 4; pos++)\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
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)
{
- // variables
uint16_t len;
uint8_t bt[2];
+ uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+ uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
- uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
- uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
-
+ \r
// command MIFARE_CLASSIC_READBLOCK
len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);
if (len == 1) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
return 1;
}
if (len != 18) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: card timeout. len: %x", len);
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("Cmd Error: card timeout. len: %x", len);
return 2;
}
memcpy(bt, receivedAnswer + 16, 2);
AppendCrc14443a(receivedAnswer, 16);
if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Cmd CRC response error.");
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("Cmd CRC response error.");
return 3;
}
int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData)
{
// variables
- int len, i; \r
+ uint16_t len, i; \r
uint32_t pos;\r
uint8_t par[3] = {0}; // enough for 18 Bytes to send\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
int mifare_ultra_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData)
{
- // variables
uint16_t len;
uint8_t par[3] = {0}; // enough for 18 parity bits
-
- uint8_t d_block[18];
- uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
- uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+ uint8_t d_block[18] = {0x00};
+ 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);
if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK
- if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]);
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]);
return 1;
}
- memset(d_block,'\0',18);
memcpy(d_block, blockData, 16);
AppendCrc14443a(d_block, 16);
ReaderTransmitPar(d_block, sizeof(d_block), par, NULL);
- // Receive the response
len = ReaderReceive(receivedAnswer, receivedAnswerPar);
if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK
- if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len);
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len);
return 2;
}
-
return 0;
}
int mifare_ultra_special_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData)
{
uint16_t len;
-
- uint8_t d_block[8];
- uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();\r
- uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+ uint8_t d_block[8] = {0x00};
+ uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+ uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
// command MIFARE_CLASSIC_WRITEBLOCK
- memset(d_block,'\0',8);
d_block[0]= blockNo;
memcpy(d_block+1,blockData,4);
AppendCrc14443a(d_block, 6);
- //i know the data send here is correct
len = mifare_sendcmd_short_special(NULL, 1, 0xA2, d_block, receivedAnswer, receivedAnswerPar, NULL);
if (receivedAnswer[0] != 0x0A) { // 0x0a - ACK
- if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len);
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len);
return 1;
}
-\r
- return 0;
+\r return 0;
}
int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid)
{
- // variables
uint16_t len; \r
- \r
- // Mifare HALT\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
- if (MF_DBGLEVEL >= 1) Dbprintf("halt error. response len: %x", len); \r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("halt error. response len: %x", len); \r
return 1;\r
}\r
\r
int mifare_ultra_halt(uint32_t uid)
{
uint16_t len;
-
- // Mifare HALT
- 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) {
- if (MF_DBGLEVEL >= 1) Dbprintf("halt error. response len: %x", len);
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("halt error. response len: %x", len);
return 1;
}
-
return 0;
}
\r
// work with emulator memory
void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {
- uint8_t* emCARD = get_bigbufptr_emlcardmem();
- \r
+ 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
- uint8_t* emCARD = get_bigbufptr_emlcardmem();\r
- \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
- uint8_t* emCARD = get_bigbufptr_emlcardmem();\r
- \r
+ uint8_t* emCARD = BigBuf_get_EM_addr();\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
}\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
\r
memcpy(blReg, data, 4);\r
*blBlock = data[12];\r
- \r
return 0;\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
\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
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
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
+}