+int usage_hf_iclass_readtagfile(){
+ PrintAndLog("Usage: hf iclass readtagfile <filename>");
+ return 1;
+}
+
+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 = 32;
+
+ 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++;
+ }
+ if ((i < filemaxblock) && (i < maxmemcount)){
+ printf("block[%02X]: ",i);
+ memcpy(blockdata,iclass_dump + (i * 8),8);
+ for (j = 0;j < 8;j++)
+ printf("%02X",blockdata[j]);
+ printf("\n");
+ }
+}
+
+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);
+
+ uint8_t *dump = malloc(fsize);
+
+
+ size_t bytes_read = fread(dump, 1, fsize, f);
+ fclose(f);
+ uint8_t *csn = dump;
+ printf("CSN : %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;
+}
+
+int usage_hf_iclass_calc_ekey(){
+ PrintAndLog("Usage: hf iclass calc_ekey <STDKEY> <ELITE key> [c]");
+ return 1;
+}
+
+int CmdHFiClassCalcEKey(const char *Cmd){
+ uint8_t STDKEY[8];
+ uint8_t ELITEKEY[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 std_div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t elite_div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t keytable[128] = {0};
+ uint8_t key_index[8] = {0};
+ uint64_t new_div_key;
+ uint64_t i_elite_div_key;
+ uint64_t i_std_div_key;
+ bool use_credit_key = false;
+ //memcpy(STDKEY,GLOBAL_KEY,sizeof(STDKEY));
+ int i;
+ if (strlen(Cmd) < 2)
+ return usage_hf_iclass_calc_ekey();
+
+ if (param_gethex(Cmd, 0, STDKEY, 16))
+ return usage_hf_iclass_calc_ekey();
+
+ if (param_gethex(Cmd, 1, ELITEKEY, 16) != 0)
+ return usage_hf_iclass_calc_ekey();
+
+ if (param_getchar(Cmd, 2)=='c')
+ use_credit_key = true;
+
+ hash2(ELITEKEY, keytable);
+
+ uint8_t key_sel[8] = { 0 };
+ uint8_t key_sel_p[8] = { 0 };
+
+ if (!select_only(CSN, CCNR, use_credit_key, true))
+ return 0;
+
+ diversifyKey(CSN, STDKEY, std_div_key);
+
+ // printvar("(S)Div key", std_div_key, 8);
+ hash1(CSN, key_index);
+ for(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, elite_div_key);
+ // printvar("(E)Div key", elite_div_key, 8);
+ i_elite_div_key = hexarray_to_uint64(elite_div_key);
+ i_std_div_key = hexarray_to_uint64(std_div_key);
+ new_div_key = xorcheck(i_std_div_key, i_elite_div_key);
+ printf("New Div Key : %016"llX"\n",new_div_key);
+ return 0;
+}
+
+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);
+
+ 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;
+}
+
+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;
+}
+
+int printKeys(){
+ 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(){
+ 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 CmdManageKeys(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 < 0) {
+ PrintAndLog("Wrong 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