+ gotBytes += blocksRead*8;
+ } else { //field is still on - turn it off...
+ ul_switch_off_field();
+ }
+ }
+
+ // add diversified keys to dump
+ if (have_debit_key) memcpy(tag_data+(3*8),div_key,8);
+ if (have_credit_key) memcpy(tag_data+(4*8),c_div_key,8);
+ // print the dump
+ printf("CSN |00| %02X %02X %02X %02X %02X %02X %02X %02X |\n",tag_data[0],tag_data[1],tag_data[2]
+ ,tag_data[3],tag_data[4],tag_data[5],tag_data[6],tag_data[7]);
+ printIclassDumpContents(tag_data, 1, (gotBytes/8)-1, gotBytes-8);
+
+ if (filename[0] == 0){
+ snprintf(filename, FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x",
+ tag_data[0],tag_data[1],tag_data[2],tag_data[3],
+ tag_data[4],tag_data[5],tag_data[6],tag_data[7]);
+ }
+
+ // save the dump to .bin file
+ PrintAndLog("Saving dump file - %d blocks read", gotBytes/8);
+ saveFile(filename, "bin", tag_data, gotBytes);
+ return 1;
+}
+
+static int WriteBlock(uint8_t blockno, uint8_t *bldata, uint8_t *KEY, bool use_credit_key, bool elite, bool rawkey, bool verbose) {
+ uint8_t MAC[4]={0x00,0x00,0x00,0x00};
+ uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, verbose))
+ return 0;
+
+ UsbCommand resp;
+
+ Calc_wb_mac(blockno,bldata,div_key,MAC);
+ UsbCommand w = {CMD_ICLASS_WRITEBLOCK, {blockno}};
+ memcpy(w.d.asBytes, bldata, 8);
+ memcpy(w.d.asBytes + 8, MAC, 4);
+
+ clearCommandBuffer();
+ SendCommand(&w);
+ if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
+ {
+ PrintAndLog("Write Command execute timeout");
+ return 0;
+ }
+ uint8_t isOK = resp.arg[0] & 0xff;
+ if (!isOK) {
+ PrintAndLog("Write Block Failed");
+ return 0;
+ }
+ PrintAndLog("Write Block Successful");
+ return 1;
+}
+
+int usage_hf_iclass_writeblock(void) {
+ PrintAndLog("Options:");
+ PrintAndLog(" b <Block> : The block number as 2 hex symbols");
+ PrintAndLog(" d <data> : Set the Data to write as 16 hex symbols");
+ PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory");
+ PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n");
+ PrintAndLog(" e : If 'e' is specified, elite computations applied to key");
+ PrintAndLog(" r : If 'r' is specified, no computations applied to key");
+ PrintAndLog("Samples:");
+ PrintAndLog(" hf iclass writeblk b 0A d AAAAAAAAAAAAAAAA k 001122334455667B");
+ PrintAndLog(" hf iclass writeblk b 1B d AAAAAAAAAAAAAAAA k 001122334455667B c");
+ PrintAndLog(" hf iclass writeblk b 0A d AAAAAAAAAAAAAAAA n 0");
+ return 0;
+}
+
+int CmdHFiClass_WriteBlock(const char *Cmd) {
+ uint8_t blockno=0;
+ uint8_t bldata[8]={0,0,0,0,0,0,0,0};
+ uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t keyNbr = 0;
+ uint8_t dataLen = 0;
+ char tempStr[50] = {0};
+ bool use_credit_key = false;
+ bool elite = false;
+ bool rawkey= false;
+ bool errors = false;
+ uint8_t cmdp = 0;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ case 'H':
+ return usage_hf_iclass_writeblock();
+ case 'b':
+ case 'B':
+ if (param_gethex(Cmd, cmdp+1, &blockno, 2)) {
+ PrintAndLog("Block No must include 2 HEX symbols\n");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'c':
+ case 'C':
+ use_credit_key = true;
+ cmdp++;
+ break;
+ case 'd':
+ case 'D':
+ if (param_gethex(Cmd, cmdp+1, bldata, 16))
+ {
+ PrintAndLog("KEY must include 16 HEX symbols\n");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'e':
+ case 'E':
+ elite = true;
+ cmdp++;
+ break;
+ case 'k':
+ case 'K':
+ dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+ if (dataLen == 16) {
+ errors = param_gethex(tempStr, 0, KEY, dataLen);
+ } else if (dataLen == 1) {
+ keyNbr = param_get8(Cmd, cmdp+1);
+ if (keyNbr < ICLASS_KEYS_MAX) {
+ memcpy(KEY, iClass_Key_Table[keyNbr], 8);
+ } else {
+ PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
+ errors = true;
+ }
+ } else {
+ PrintAndLog("\nERROR: Credit Key is incorrect length\n");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'r':
+ case 'R':
+ rawkey = true;
+ cmdp++;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ if(errors) return usage_hf_iclass_writeblock();
+ }
+
+ if (cmdp < 6) return usage_hf_iclass_writeblock();
+ int ans = WriteBlock(blockno, bldata, KEY, use_credit_key, elite, rawkey, true);
+ ul_switch_off_field();
+ return ans;
+}
+
+int usage_hf_iclass_clone(void) {
+ PrintAndLog("Usage: hf iclass clone f <tagfile.bin> b <first block> l <last block> k <KEY> c e|r");
+ PrintAndLog("Options:");
+ PrintAndLog(" f <filename>: specify a filename to clone from");
+ PrintAndLog(" b <Block> : The first block to clone as 2 hex symbols");
+ PrintAndLog(" l <Last Blk>: Set the Data to write as 16 hex symbols");
+ PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory");
+ PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n");
+ PrintAndLog(" e : If 'e' is specified, elite computations applied to key");
+ PrintAndLog(" r : If 'r' is specified, no computations applied to key");
+ PrintAndLog("Samples:");
+ PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 06 l 1A k 1122334455667788 e");
+ PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 05 l 19 k 0");
+ PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 06 l 19 k 0 e");
+ return -1;
+}
+
+int CmdHFiClassCloneTag(const char *Cmd) {
+ char filename[FILE_PATH_SIZE] = {0};
+ char tempStr[50]={0};
+ uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t keyNbr = 0;
+ uint8_t fileNameLen = 0;
+ uint8_t startblock = 0;
+ uint8_t endblock = 0;
+ uint8_t dataLen = 0;
+ bool use_credit_key = false;
+ bool elite = false;
+ bool rawkey = false;
+ bool errors = false;
+ uint8_t cmdp = 0;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ case 'H':
+ return usage_hf_iclass_clone();
+ case 'b':
+ case 'B':
+ if (param_gethex(Cmd, cmdp+1, &startblock, 2)) {
+ PrintAndLog("Start Block No must include 2 HEX symbols\n");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'c':
+ case 'C':
+ use_credit_key = true;
+ cmdp++;
+ break;
+ case 'e':
+ case 'E':
+ elite = true;
+ cmdp++;
+ break;
+ case 'f':
+ case 'F':
+ fileNameLen = param_getstr(Cmd, cmdp+1, filename);
+ if (fileNameLen < 1) {
+ PrintAndLog("No filename found after f");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'k':
+ case 'K':
+ dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+ if (dataLen == 16) {
+ errors = param_gethex(tempStr, 0, KEY, dataLen);
+ } else if (dataLen == 1) {
+ keyNbr = param_get8(Cmd, cmdp+1);
+ if (keyNbr < ICLASS_KEYS_MAX) {
+ memcpy(KEY, iClass_Key_Table[keyNbr], 8);
+ } else {
+ PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
+ errors = true;
+ }
+ } else {
+ PrintAndLog("\nERROR: Credit Key is incorrect length\n");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'l':
+ case 'L':
+ if (param_gethex(Cmd, cmdp+1, &endblock, 2)) {
+ PrintAndLog("Start Block No must include 2 HEX symbols\n");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'r':
+ case 'R':
+ rawkey = true;
+ cmdp++;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ if(errors) return usage_hf_iclass_clone();
+ }
+
+ if (cmdp < 8) return usage_hf_iclass_clone();
+
+ FILE *f;
+
+ iclass_block_t tag_data[USB_CMD_DATA_SIZE/12];
+
+ if ((endblock-startblock+1)*12 > USB_CMD_DATA_SIZE) {
+ PrintAndLog("Trying to write too many blocks at once. Max: %d", USB_CMD_DATA_SIZE/8);
+ }
+ // file handling and reading
+ f = fopen(filename,"rb");
+ if(!f) {
+ PrintAndLog("Failed to read from file '%s'", filename);
+ return 1;
+ }
+
+ if (startblock<5) {
+ PrintAndLog("You cannot write key blocks this way. yet... make your start block > 4");
+ fclose(f);
+ return 0;
+ }
+ // now read data from the file from block 6 --- 19
+ // ok we will use this struct [data 8 bytes][MAC 4 bytes] for each block calculate all mac number for each data
+ // then copy to usbcommand->asbytes; the max is 32 - 6 = 24 block 12 bytes each block 288 bytes then we can only accept to clone 21 blocks at the time,
+ // else we have to create a share memory
+ int i;
+ fseek(f,startblock*8,SEEK_SET);
+ if ( fread(tag_data,sizeof(iclass_block_t),endblock - startblock + 1,f) == 0 ) {
+ PrintAndLog("File reading error.");
+ fclose(f);
+ return 2;
+ }
+
+ uint8_t MAC[4]={0x00,0x00,0x00,0x00};
+ uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+
+ if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, true))
+ return 0;
+
+ UsbCommand w = {CMD_ICLASS_CLONE,{startblock,endblock}};
+ uint8_t *ptr;
+ // calculate all mac for every the block we will write
+ for (i = startblock; i <= endblock; i++){
+ Calc_wb_mac(i,tag_data[i - startblock].d,div_key,MAC);
+ // usb command d start pointer = d + (i - 6) * 12
+ // memcpy(pointer,tag_data[i - 6],8) 8 bytes
+ // memcpy(pointer + 8,mac,sizoof(mac) 4 bytes;
+ // next one
+ ptr = w.d.asBytes + (i - startblock) * 12;
+ memcpy(ptr, &(tag_data[i - startblock].d[0]), 8);
+ memcpy(ptr + 8,MAC, 4);
+ }
+ uint8_t p[12];
+ for (i = 0; i <= endblock - startblock;i++){
+ memcpy(p,w.d.asBytes + (i * 12),12);
+ printf("Block |%02x|",i + startblock);
+ printf(" %02x%02x%02x%02x%02x%02x%02x%02x |",p[0],p[1],p[2],p[3],p[4],p[5],p[6],p[7]);
+ printf(" MAC |%02x%02x%02x%02x|\n",p[8],p[9],p[10],p[11]);
+ }
+ UsbCommand resp;
+ SendCommand(&w);
+ if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
+ {
+ PrintAndLog("Command execute timeout");
+ return 0;
+ }
+ return 1;
+}
+
+static int ReadBlock(uint8_t *KEY, uint8_t blockno, uint8_t keyType, bool elite, bool rawkey, bool verbose) {
+ uint8_t MAC[4]={0x00,0x00,0x00,0x00};
+ uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+
+ if (!select_and_auth(KEY, MAC, div_key, (keyType==0x18), elite, rawkey, verbose))
+ return 0;
+
+ UsbCommand resp;
+ UsbCommand w = {CMD_ICLASS_READBLOCK, {blockno}};
+ clearCommandBuffer();
+ SendCommand(&w);
+ if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
+ {
+ PrintAndLog("Command execute timeout");
+ return 0;
+ }
+ uint8_t isOK = resp.arg[0] & 0xff;
+ if (!isOK) {
+ PrintAndLog("Read Block Failed");
+ return 0;
+ }
+ //data read is stored in: resp.d.asBytes[0-15]
+ if (verbose) PrintAndLog("Block %02X: %s\n",blockno, sprint_hex(resp.d.asBytes,8));
+ return 1;
+}
+
+int usage_hf_iclass_readblock(void) {
+ PrintAndLog("Usage: hf iclass readblk b <Block> k <Key> c e|r\n");
+ PrintAndLog("Options:");
+ PrintAndLog(" b <Block> : The block number as 2 hex symbols");
+ PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory");
+ PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n");
+ PrintAndLog(" e : If 'e' is specified, elite computations applied to key");
+ PrintAndLog(" r : If 'r' is specified, no computations applied to key");
+ PrintAndLog("Samples:");
+ PrintAndLog(" hf iclass readblk b 06 k 0011223344556677");
+ PrintAndLog(" hf iclass readblk b 1B k 0011223344556677 c");
+ PrintAndLog(" hf iclass readblk b 0A k 0");
+ return 0;
+}
+
+int CmdHFiClass_ReadBlock(const char *Cmd) {
+ uint8_t blockno=0;
+ uint8_t keyType = 0x88; //debit key
+ uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t keyNbr = 0;
+ uint8_t dataLen = 0;
+ char tempStr[50] = {0};
+ bool elite = false;
+ bool rawkey = false;
+ bool errors = false;
+ uint8_t cmdp = 0;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ case 'H':
+ return usage_hf_iclass_readblock();
+ case 'b':
+ case 'B':
+ if (param_gethex(Cmd, cmdp+1, &blockno, 2)) {
+ PrintAndLog("Block No must include 2 HEX symbols\n");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'c':
+ case 'C':
+ keyType = 0x18;
+ cmdp++;
+ break;
+ case 'e':
+ case 'E':
+ elite = true;
+ cmdp++;
+ break;
+ case 'k':
+ case 'K':
+ dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+ if (dataLen == 16) {
+ errors = param_gethex(tempStr, 0, KEY, dataLen);
+ } else if (dataLen == 1) {
+ keyNbr = param_get8(Cmd, cmdp+1);
+ if (keyNbr < ICLASS_KEYS_MAX) {
+ memcpy(KEY, iClass_Key_Table[keyNbr], 8);
+ } else {
+ PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
+ errors = true;
+ }
+ } else {
+ PrintAndLog("\nERROR: Credit Key is incorrect length\n");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'r':
+ case 'R':
+ rawkey = true;
+ cmdp++;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ if(errors) return usage_hf_iclass_readblock();
+ }
+
+ if (cmdp < 4) return usage_hf_iclass_readblock();
+
+ return ReadBlock(KEY, blockno, keyType, elite, rawkey, true);
+}
+
+int CmdHFiClass_loclass(const char *Cmd) {
+ char opt = param_getchar(Cmd, 0);
+
+ if (strlen(Cmd)<1 || opt == 'h') {
+ PrintAndLog("Usage: hf iclass loclass [options]");
+ PrintAndLog("Options:");
+ PrintAndLog("h Show this help");
+ PrintAndLog("t Perform self-test");
+ PrintAndLog("f <filename> Bruteforce iclass dumpfile");
+ PrintAndLog(" An iclass dumpfile is assumed to consist of an arbitrary number of");
+ PrintAndLog(" malicious CSNs, and their protocol responses");
+ PrintAndLog(" The binary format of the file is expected to be as follows: ");
+ PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
+ PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
+ PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
+ PrintAndLog(" ... totalling N*24 bytes");
+ return 0;
+ }
+ char fileName[255] = {0};
+ if(opt == 'f')
+ {
+ if(param_getstr(Cmd, 1, fileName) > 0)
+ {
+ return bruteforceFileNoKeys(fileName);
+ }else
+ {
+ PrintAndLog("You must specify a filename");
+ }
+ }
+ else if(opt == 't')
+ {
+ int errors = testCipherUtils();
+ errors += testMAC();
+ errors += doKeyTests(0);
+ errors += testElite();
+ if(errors)
+ {
+ prnlog("OBS! There were errors!!!");
+ }
+ return errors;
+ }
+
+ return 0;
+}
+
+void printIclassDumpContents(uint8_t *iclass_dump, uint8_t startblock, uint8_t endblock, size_t filesize) {
+ uint8_t blockdata[8];
+ uint8_t mem_config;
+ memcpy(&mem_config, iclass_dump + 13,1);
+ uint8_t maxmemcount;
+ uint8_t filemaxblock = filesize / 8;
+ if (mem_config & 0x80)
+ maxmemcount = 255;
+ else
+ maxmemcount = 31;
+ //PrintAndLog ("endblock: %d, filesize: %d, maxmemcount: %d, filemaxblock: %d", endblock,filesize, maxmemcount, filemaxblock);
+
+ if (startblock == 0)
+ startblock = 6;
+ if ((endblock > maxmemcount) || (endblock == 0))
+ endblock = maxmemcount;
+ if (endblock > filemaxblock)
+ endblock = filemaxblock;
+ int i = startblock;
+ int j;
+ while (i <= endblock){
+ printf("Block |%02X| ",i);
+ memcpy(blockdata,iclass_dump + (i * 8),8);
+ for (j = 0;j < 8;j++)
+ printf("%02X ",blockdata[j]);
+ printf("|\n");
+ i++;
+ }
+}
+
+int usage_hf_iclass_readtagfile() {
+ PrintAndLog("Usage: hf iclass readtagfile <filename> [startblock] [endblock]");
+ return 1;
+}
+
+int CmdHFiClassReadTagFile(const char *Cmd) {
+ int startblock = 0;
+ int endblock = 0;
+ char tempnum[5];
+ FILE *f;
+ char filename[FILE_PATH_SIZE];
+ if (param_getstr(Cmd, 0, filename) < 1)
+ return usage_hf_iclass_readtagfile();
+ if (param_getstr(Cmd,1,(char *)&tempnum) < 1)
+ startblock = 0;
+ else
+ sscanf(tempnum,"%d",&startblock);
+
+ if (param_getstr(Cmd,2,(char *)&tempnum) < 1)
+ endblock = 0;
+ else
+ sscanf(tempnum,"%d",&endblock);
+ // file handling and reading
+ f = fopen(filename,"rb");
+ if(!f) {
+ PrintAndLog("Failed to read from file '%s'", filename);
+ return 1;
+ }
+ fseek(f, 0, SEEK_END);
+ long fsize = ftell(f);
+ fseek(f, 0, SEEK_SET);
+
+ if ( fsize < 0 ) {
+ PrintAndLog("Error, when getting filesize");
+ fclose(f);
+ return 1;
+ }
+
+ uint8_t *dump = malloc(fsize);
+
+ size_t bytes_read = fread(dump, 1, fsize, f);
+ fclose(f);
+ uint8_t *csn = dump;
+ printf("CSN [00] | %02X %02X %02X %02X %02X %02X %02X %02X |\n",csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
+ // printIclassDumpInfo(dump);
+ printIclassDumpContents(dump,startblock,endblock,bytes_read);
+ free(dump);
+ return 0;
+}
+
+/*
+uint64_t xorcheck(uint64_t sdiv,uint64_t hdiv) {
+ uint64_t new_div = 0x00;
+ new_div ^= sdiv;
+ new_div ^= hdiv;
+ return new_div;
+}
+
+uint64_t hexarray_to_uint64(uint8_t *key) {
+ char temp[17];
+ uint64_t uint_key;
+ for (int i = 0;i < 8;i++)
+ sprintf(&temp[(i *2)],"%02X",key[i]);
+ temp[16] = '\0';
+ if (sscanf(temp,"%016"llx,&uint_key) < 1)
+ return 0;
+ return uint_key;
+}
+*/
+void HFiClassCalcDivKey(uint8_t *CSN, uint8_t *KEY, uint8_t *div_key, bool elite){
+ uint8_t keytable[128] = {0};
+ uint8_t key_index[8] = {0};
+ if (elite) {
+ uint8_t key_sel[8] = { 0 };
+ uint8_t key_sel_p[8] = { 0 };
+ hash2(KEY, keytable);
+ hash1(CSN, key_index);
+ for(uint8_t i = 0; i < 8 ; i++)
+ key_sel[i] = keytable[key_index[i]] & 0xFF;
+
+ //Permute from iclass format to standard format
+ permutekey_rev(key_sel, key_sel_p);
+ diversifyKey(CSN, key_sel_p, div_key);
+ } else {
+ diversifyKey(CSN, KEY, div_key);
+ }
+}
+
+//when told CSN, oldkey, newkey, if new key is elite (elite), and if old key was elite (oldElite)
+//calculate and return xor_div_key (ready for a key write command)
+//print all div_keys if verbose
+static void HFiClassCalcNewKey(uint8_t *CSN, uint8_t *OLDKEY, uint8_t *NEWKEY, uint8_t *xor_div_key, bool elite, bool oldElite, bool verbose){
+ uint8_t old_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t new_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ //get old div key
+ HFiClassCalcDivKey(CSN, OLDKEY, old_div_key, oldElite);
+ //get new div key
+ HFiClassCalcDivKey(CSN, NEWKEY, new_div_key, elite);
+
+ for (uint8_t i = 0; i < sizeof(old_div_key); i++){
+ xor_div_key[i] = old_div_key[i] ^ new_div_key[i];
+ }
+ if (verbose) {
+ printf("Old Div Key : %s\n",sprint_hex(old_div_key,8));
+ printf("New Div Key : %s\n",sprint_hex(new_div_key,8));
+ printf("Xor Div Key : %s\n",sprint_hex(xor_div_key,8));
+ }
+}
+
+int usage_hf_iclass_calc_newkey(void) {
+ PrintAndLog("HELP : Manage iClass Keys in client memory:\n");
+ PrintAndLog("Usage: hf iclass calc_newkey o <Old key> n <New key> s [csn] e");
+ PrintAndLog(" Options:");
+ PrintAndLog(" o <oldkey> : *specify a key as 16 hex symbols or a key number as 1 symbol");
+ PrintAndLog(" n <newkey> : *specify a key as 16 hex symbols or a key number as 1 symbol");
+ PrintAndLog(" s <csn> : specify a card Serial number to diversify the key (if omitted will attempt to read a csn)");
+ PrintAndLog(" e : specify new key as elite calc");
+ PrintAndLog(" ee : specify old and new key as elite calc");
+ PrintAndLog("Samples:");
+ PrintAndLog(" e key to e key given csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899 s deadbeafdeadbeaf ee");
+ PrintAndLog(" std key to e key read csn: hf iclass calcnewkey o 1122334455667788 n 2233445566778899 e");
+ PrintAndLog(" std to std read csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899");
+ PrintAndLog("NOTE: * = required\n");
+
+ return 1;
+}
+
+int CmdHFiClassCalcNewKey(const char *Cmd) {
+ uint8_t OLDKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t NEWKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t xor_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t CSN[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t CCNR[12] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t keyNbr = 0;
+ uint8_t dataLen = 0;
+ char tempStr[50] = {0};
+ bool givenCSN = false;
+ bool oldElite = false;
+ bool elite = false;
+ bool errors = false;
+ uint8_t cmdp = 0;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ case 'H':
+ return usage_hf_iclass_calc_newkey();
+ case 'e':
+ case 'E':
+ dataLen = param_getstr(Cmd, cmdp, tempStr);
+ if (dataLen==2)
+ oldElite = true;
+ elite = true;
+ cmdp++;
+ break;
+ case 'n':
+ case 'N':
+ dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+ if (dataLen == 16) {
+ errors = param_gethex(tempStr, 0, NEWKEY, dataLen);
+ } else if (dataLen == 1) {
+ keyNbr = param_get8(Cmd, cmdp+1);
+ if (keyNbr < ICLASS_KEYS_MAX) {
+ memcpy(NEWKEY, iClass_Key_Table[keyNbr], 8);
+ } else {
+ PrintAndLog("\nERROR: NewKey Nbr is invalid\n");
+ errors = true;
+ }
+ } else {
+ PrintAndLog("\nERROR: NewKey is incorrect length\n");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'o':
+ case 'O':
+ dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+ if (dataLen == 16) {
+ errors = param_gethex(tempStr, 0, OLDKEY, dataLen);
+ } else if (dataLen == 1) {
+ keyNbr = param_get8(Cmd, cmdp+1);
+ if (keyNbr < ICLASS_KEYS_MAX) {
+ memcpy(OLDKEY, iClass_Key_Table[keyNbr], 8);
+ } else {
+ PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
+ errors = true;
+ }
+ } else {
+ PrintAndLog("\nERROR: Credit Key is incorrect length\n");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 's':
+ case 'S':
+ givenCSN = true;
+ if (param_gethex(Cmd, cmdp+1, CSN, 16))
+ return usage_hf_iclass_calc_newkey();
+ cmdp += 2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ if(errors) return usage_hf_iclass_calc_newkey();
+ }
+
+ if (cmdp < 4) return usage_hf_iclass_calc_newkey();
+
+ if (!givenCSN)
+ if (!select_only(CSN, CCNR, false, true))
+ return 0;
+
+ HFiClassCalcNewKey(CSN, OLDKEY, NEWKEY, xor_div_key, elite, oldElite, true);
+ return 0;
+}
+
+static int loadKeys(char *filename) {
+ FILE *f;
+ f = fopen(filename,"rb");
+ if(!f) {
+ PrintAndLog("Failed to read from file '%s'", filename);
+ return 0;
+ }
+ fseek(f, 0, SEEK_END);
+ long fsize = ftell(f);
+ fseek(f, 0, SEEK_SET);
+
+ if ( fsize < 0 ) {
+ PrintAndLog("Error, when getting filesize");
+ fclose(f);
+ return 1;
+ }
+
+ uint8_t *dump = malloc(fsize);
+
+ size_t bytes_read = fread(dump, 1, fsize, f);
+ fclose(f);
+ if (bytes_read > ICLASS_KEYS_MAX * 8){
+ PrintAndLog("File is too long to load - bytes: %u", bytes_read);
+ free(dump);
+ return 0;
+ }
+ uint8_t i = 0;
+ for (; i < bytes_read/8; i++){
+ memcpy(iClass_Key_Table[i],dump+(i*8),8);
+ }
+ free(dump);
+ PrintAndLog("%u keys loaded", i);
+ return 1;
+}
+
+static int saveKeys(char *filename) {
+ FILE *f;
+ f = fopen(filename,"wb");
+ if (f == NULL) {
+ printf("error opening file %s\n",filename);
+ return 0;
+ }
+ for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){
+ if (fwrite(iClass_Key_Table[i],8,1,f) != 1){
+ PrintAndLog("save key failed to write to file: %s", filename);
+ break;
+ }
+ }
+ fclose(f);
+ return 0;
+}
+
+static int printKeys(void) {
+ PrintAndLog("");
+ for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){
+ PrintAndLog("%u: %s",i,sprint_hex(iClass_Key_Table[i],8));
+ }
+ PrintAndLog("");
+ return 0;
+}
+
+int usage_hf_iclass_managekeys(void) {
+ PrintAndLog("HELP : Manage iClass Keys in client memory:\n");
+ PrintAndLog("Usage: hf iclass managekeys n [keynbr] k [key] f [filename] s l p\n");
+ PrintAndLog(" Options:");
+ PrintAndLog(" n <keynbr> : specify the keyNbr to set in memory");
+ PrintAndLog(" k <key> : set a key in memory");
+ PrintAndLog(" f <filename>: specify a filename to use with load or save operations");
+ PrintAndLog(" s : save keys in memory to file specified by filename");
+ PrintAndLog(" l : load keys to memory from file specified by filename");
+ PrintAndLog(" p : print keys loaded into memory\n");
+ PrintAndLog("Samples:");
+ PrintAndLog(" set key : hf iclass managekeys n 0 k 1122334455667788");
+ PrintAndLog(" save key file: hf iclass managekeys f mykeys.bin s");
+ PrintAndLog(" load key file: hf iclass managekeys f mykeys.bin l");
+ PrintAndLog(" print keys : hf iclass managekeys p\n");
+ return 0;
+}
+
+int CmdHFiClassManageKeys(const char *Cmd) {
+ uint8_t keyNbr = 0;
+ uint8_t dataLen = 0;
+ uint8_t KEY[8] = {0};
+ char filename[FILE_PATH_SIZE];
+ uint8_t fileNameLen = 0;
+ bool errors = false;
+ uint8_t operation = 0;
+ char tempStr[20];
+ uint8_t cmdp = 0;
+
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ case 'H':
+ return usage_hf_iclass_managekeys();
+ case 'f':
+ case 'F':
+ fileNameLen = param_getstr(Cmd, cmdp+1, filename);
+ if (fileNameLen < 1) {
+ PrintAndLog("No filename found after f");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'n':
+ case 'N':
+ keyNbr = param_get8(Cmd, cmdp+1);
+ if (keyNbr >= ICLASS_KEYS_MAX) {
+ PrintAndLog("Invalid block number");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'k':
+ case 'K':
+ operation += 3; //set key
+ dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+ if (dataLen == 16) { //ul-c or ev1/ntag key length
+ errors = param_gethex(tempStr, 0, KEY, dataLen);
+ } else {
+ PrintAndLog("\nERROR: Key is incorrect length\n");
+ errors = true;
+ }
+ cmdp += 2;
+ break;
+ case 'p':
+ case 'P':
+ operation += 4; //print keys in memory
+ cmdp++;
+ break;
+ case 'l':
+ case 'L':
+ operation += 5; //load keys from file
+ cmdp++;
+ break;
+ case 's':
+ case 'S':
+ operation += 6; //save keys to file
+ cmdp++;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ if(errors) return usage_hf_iclass_managekeys();
+ }
+ if (operation == 0){
+ PrintAndLog("no operation specified (load, save, or print)\n");
+ return usage_hf_iclass_managekeys();
+ }
+ if (operation > 6){
+ PrintAndLog("Too many operations specified\n");
+ return usage_hf_iclass_managekeys();
+ }
+ if (operation > 4 && fileNameLen == 0){
+ PrintAndLog("You must enter a filename when loading or saving\n");
+ return usage_hf_iclass_managekeys();
+ }
+
+ switch (operation){
+ case 3: memcpy(iClass_Key_Table[keyNbr], KEY, 8); return 1;
+ case 4: return printKeys();
+ case 5: return loadKeys(filename);
+ case 6: return saveKeys(filename);
+ break;
+ }
+ return 0;
projects / proxmark3-svn / blobdiff