X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/8b5ec1f4a68e86ae1bffe965d3e131ad709b75fc..e1e7a09db1d2fea34ea44c4cadda0c47ccf4269f:/client/cmdhficlass.c?ds=sidebyside diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c index 63634cd4..d42f7eef 100644 --- a/client/cmdhficlass.c +++ b/client/cmdhficlass.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type #include "data.h" #include "proxmark3.h" @@ -32,6 +33,7 @@ #include "protocols.h" #include "usb_cmd.h" #include "cmdhfmfu.h" +#include "util_posix.h" static int CmdHelp(const char *Cmd); @@ -51,6 +53,20 @@ typedef struct iclass_block { uint8_t d[8]; } iclass_block_t; +int usage_hf_iclass_chk(void) { + PrintAndLog("Checkkeys loads a dictionary text file with 8byte hex keys to test authenticating against a iClass tag"); + PrintAndLog("Usage: hf iclass chk [h|e|r] "); + PrintAndLog("Options:"); + PrintAndLog("h Show this help"); + PrintAndLog("f Dictionary file with default iclass keys"); + PrintAndLog(" e target Elite / High security key scheme"); + PrintAndLog(" r interpret dictionary file as raw (diversified keys)"); + PrintAndLog("Samples:"); + PrintAndLog(" hf iclass chk f default_iclass_keys.dic"); + PrintAndLog(" hf iclass chk f default_iclass_keys.dic e"); + return 0; +} + int xorbits_8(uint8_t val) { uint8_t res = val ^ (val >> 1); //1st pass res = res ^ (res >> 1); // 2nd pass @@ -278,7 +294,7 @@ int CmdHFiClassELoad(const char *Cmd) { //File handling and reading FILE *f; char filename[FILE_PATH_SIZE]; - if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0) + if(opt == 'f' && param_getstr(Cmd, 1, filename, sizeof(filename)) > 0) { f = fopen(filename, "rb"); }else{ @@ -384,7 +400,7 @@ int CmdHFiClassDecrypt(const char *Cmd) { //Open the tagdump-file FILE *f; char filename[FILE_PATH_SIZE]; - if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0) { + if(opt == 'f' && param_getstr(Cmd, 1, filename, sizeof(filename)) > 0) { f = fopen(filename, "rb"); if ( f == NULL ) { PrintAndLog("Could not find file %s", filename); @@ -531,7 +547,7 @@ static bool select_and_auth(uint8_t *KEY, uint8_t *MAC, uint8_t *div_key, bool u memcpy(div_key, KEY, 8); else HFiClassCalcDivKey(CSN, KEY, div_key, elite); - PrintAndLog("Authing with %s: %02x%02x%02x%02x%02x%02x%02x%02x", rawkey ? "raw key" : "diversified key", div_key[0],div_key[1],div_key[2],div_key[3],div_key[4],div_key[5],div_key[6],div_key[7]); + if (verbose) PrintAndLog("Authing with %s: %02x%02x%02x%02x%02x%02x%02x%02x", rawkey ? "raw key" : "diversified key", div_key[0],div_key[1],div_key[2],div_key[3],div_key[4],div_key[5],div_key[6],div_key[7]); doMAC(CCNR, div_key, MAC); UsbCommand resp; @@ -541,12 +557,12 @@ static bool select_and_auth(uint8_t *KEY, uint8_t *MAC, uint8_t *div_key, bool u SendCommand(&d); if (!WaitForResponseTimeout(CMD_ACK,&resp,4500)) { - PrintAndLog("Auth Command execute timeout"); + if (verbose) PrintAndLog("Auth Command execute timeout"); return false; } uint8_t isOK = resp.arg[0] & 0xff; if (!isOK) { - PrintAndLog("Authentication error"); + if (verbose) PrintAndLog("Authentication error"); return false; } return true; @@ -605,7 +621,7 @@ int CmdHFiClassReader_Dump(const char *Cmd) { case 'c': case 'C': have_credit_key = true; - dataLen = param_getstr(Cmd, cmdp+1, tempStr); + dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); if (dataLen == 16) { errors = param_gethex(tempStr, 0, CreditKEY, dataLen); } else if (dataLen == 1) { @@ -629,7 +645,7 @@ int CmdHFiClassReader_Dump(const char *Cmd) { break; case 'f': case 'F': - fileNameLen = param_getstr(Cmd, cmdp+1, filename); + fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); if (fileNameLen < 1) { PrintAndLog("No filename found after f"); errors = true; @@ -639,7 +655,7 @@ int CmdHFiClassReader_Dump(const char *Cmd) { case 'k': case 'K': have_debit_key = true; - dataLen = param_getstr(Cmd, cmdp+1, tempStr); + dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); if (dataLen == 16) { errors = param_gethex(tempStr, 0, KEY, dataLen); } else if (dataLen == 1) { @@ -898,7 +914,7 @@ int CmdHFiClass_WriteBlock(const char *Cmd) { break; case 'k': case 'K': - dataLen = param_getstr(Cmd, cmdp+1, tempStr); + dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); if (dataLen == 16) { errors = param_gethex(tempStr, 0, KEY, dataLen); } else if (dataLen == 1) { @@ -992,7 +1008,7 @@ int CmdHFiClassCloneTag(const char *Cmd) { break; case 'f': case 'F': - fileNameLen = param_getstr(Cmd, cmdp+1, filename); + fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); if (fileNameLen < 1) { PrintAndLog("No filename found after f"); errors = true; @@ -1001,7 +1017,7 @@ int CmdHFiClassCloneTag(const char *Cmd) { break; case 'k': case 'K': - dataLen = param_getstr(Cmd, cmdp+1, tempStr); + dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); if (dataLen == 16) { errors = param_gethex(tempStr, 0, KEY, dataLen); } else if (dataLen == 1) { @@ -1196,7 +1212,7 @@ int CmdHFiClass_ReadBlock(const char *Cmd) { case 'k': case 'K': auth = true; - dataLen = param_getstr(Cmd, cmdp+1, tempStr); + dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); if (dataLen == 16) { errors = param_gethex(tempStr, 0, KEY, dataLen); } else if (dataLen == 1) { @@ -1253,7 +1269,7 @@ int CmdHFiClass_loclass(const char *Cmd) { char fileName[255] = {0}; if(opt == 'f') { - if(param_getstr(Cmd, 1, fileName) > 0) + if(param_getstr(Cmd, 1, fileName, sizeof(fileName)) > 0) { return bruteforceFileNoKeys(fileName); }else @@ -1318,14 +1334,14 @@ int CmdHFiClassReadTagFile(const char *Cmd) { char tempnum[5]; FILE *f; char filename[FILE_PATH_SIZE]; - if (param_getstr(Cmd, 0, filename) < 1) + if (param_getstr(Cmd, 0, filename, sizeof(filename)) < 1) return usage_hf_iclass_readtagfile(); - if (param_getstr(Cmd,1,(char *)&tempnum) < 1) + if (param_getstr(Cmd, 1, tempnum, sizeof(tempnum)) < 1) startblock = 0; else sscanf(tempnum,"%d",&startblock); - if (param_getstr(Cmd,2,(char *)&tempnum) < 1) + if (param_getstr(Cmd,2, tempnum, sizeof(tempnum)) < 1) endblock = 0; else sscanf(tempnum,"%d",&endblock); @@ -1458,7 +1474,7 @@ int CmdHFiClassCalcNewKey(const char *Cmd) { return usage_hf_iclass_calc_newkey(); case 'e': case 'E': - dataLen = param_getstr(Cmd, cmdp, tempStr); + dataLen = param_getstr(Cmd, cmdp, tempStr, sizeof(tempStr)); if (dataLen==2) oldElite = true; elite = true; @@ -1466,7 +1482,7 @@ int CmdHFiClassCalcNewKey(const char *Cmd) { break; case 'n': case 'N': - dataLen = param_getstr(Cmd, cmdp+1, tempStr); + dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); if (dataLen == 16) { errors = param_gethex(tempStr, 0, NEWKEY, dataLen); } else if (dataLen == 1) { @@ -1485,7 +1501,7 @@ int CmdHFiClassCalcNewKey(const char *Cmd) { break; case 'o': case 'O': - dataLen = param_getstr(Cmd, cmdp+1, tempStr); + dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); if (dataLen == 16) { errors = param_gethex(tempStr, 0, OLDKEY, dataLen); } else if (dataLen == 1) { @@ -1626,7 +1642,7 @@ int CmdHFiClassManageKeys(const char *Cmd) { return usage_hf_iclass_managekeys(); case 'f': case 'F': - fileNameLen = param_getstr(Cmd, cmdp+1, filename); + fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); if (fileNameLen < 1) { PrintAndLog("No filename found after f"); errors = true; @@ -1645,7 +1661,7 @@ int CmdHFiClassManageKeys(const char *Cmd) { case 'k': case 'K': operation += 3; //set key - dataLen = param_getstr(Cmd, cmdp+1, tempStr); + dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); if (dataLen == 16) { //ul-c or ev1/ntag key length errors = param_gethex(tempStr, 0, KEY, dataLen); } else { @@ -1699,10 +1715,152 @@ int CmdHFiClassManageKeys(const char *Cmd) { return 0; } +int CmdHFiClassCheckKeys(const char *Cmd) { + + uint8_t mac[4] = {0x00,0x00,0x00,0x00}; + uint8_t key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; + uint8_t div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; + + // elite key, raw key, standard key + bool use_elite = false; + bool use_raw = false; + bool found_debit = false; + bool found_credit = false; + bool errors = false; + uint8_t cmdp = 0x00; + FILE * f; + char filename[FILE_PATH_SIZE] = {0}; + uint8_t fileNameLen = 0; + char buf[17]; + uint8_t *keyBlock = NULL, *p; + int keyitems = 0, keycnt = 0; + + while (param_getchar(Cmd, cmdp) != 0x00 && !errors) { + switch (param_getchar(Cmd, cmdp)) { + case 'h': + case 'H': + return usage_hf_iclass_chk(); + case 'f': + case 'F': + fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); + if (fileNameLen < 1) { + PrintAndLog("No filename found after f"); + errors = true; + } + cmdp += 2; + break; + case 'e': + case 'E': + use_elite = true; + cmdp++; + break; + case 'r': + case 'R': + use_raw = true; + cmdp++; + break; + default: + PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); + errors = true; + break; + } + } + if (errors) return usage_hf_iclass_chk(); + + if ( !(f = fopen( filename , "r")) ) { + PrintAndLog("File: %s: not found or locked.", filename); + return 1; + } + + while( fgets(buf, sizeof(buf), f) ){ + if (strlen(buf) < 16 || buf[15] == '\n') + continue; + + while (fgetc(f) != '\n' && !feof(f)) ; //goto next line + + if( buf[0]=='#' ) continue; //The line start with # is comment, skip + + if (!isxdigit(buf[0])){ + PrintAndLog("File content error. '%s' must include 16 HEX symbols",buf); + continue; + } + + buf[16] = 0; + + p = realloc(keyBlock, 8 * (keyitems += 64)); + if (!p) { + PrintAndLog("Cannot allocate memory for default keys"); + free(keyBlock); + fclose(f); + return 2; + } + keyBlock = p; + + memset(keyBlock + 8 * keycnt, 0, 8); + num_to_bytes(strtoull(buf, NULL, 16), 8, keyBlock + 8 * keycnt); + + //PrintAndLog("check key[%2d] %016" PRIx64, keycnt, bytes_to_num(keyBlock + 8*keycnt, 8)); + keycnt++; + memset(buf, 0, sizeof(buf)); + } + fclose(f); + PrintAndLog("Loaded %2d keys from %s", keycnt, filename); + + // time + uint64_t t1 = msclock(); + + for (uint32_t c = 0; c < keycnt; c += 1) { + printf("."); fflush(stdout); + if (ukbhit()) { + int gc = getchar(); (void)gc; + printf("\naborted via keyboard!\n"); + break; + } + + memcpy(key, keyBlock + 8 * c , 8); + + // debit key. try twice + for (int foo = 0; foo < 2 && !found_debit; foo++) { + if (!select_and_auth(key, mac, div_key, false, use_elite, use_raw, false)) + continue; + + // key found. + PrintAndLog("\n--------------------------------------------------------"); + PrintAndLog(" Found AA1 debit key\t\t[%s]", sprint_hex(key, 8)); + found_debit = true; + } + + // credit key. try twice + for (int foo = 0; foo < 2 && !found_credit; foo++) { + if (!select_and_auth(key, mac, div_key, true, use_elite, use_raw, false)) + continue; + + // key found + PrintAndLog("\n--------------------------------------------------------"); + PrintAndLog(" Found AA2 credit key\t\t[%s]", sprint_hex(key, 8)); + found_credit = true; + } + + // both keys found. + if ( found_debit && found_credit ) + break; + } + + t1 = msclock() - t1; + + PrintAndLog("\nTime in iclass checkkeys: %.0f seconds\n", (float)t1/1000.0); + + DropField(); + free(keyBlock); + PrintAndLog(""); + return 0; +} + static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, {"calcnewkey", CmdHFiClassCalcNewKey, 1, "[options..] Calc Diversified keys (blocks 3 & 4) to write new keys"}, + {"chk", CmdHFiClassCheckKeys, 0, " Check keys"}, {"clone", CmdHFiClassCloneTag, 0, "[options..] Authenticate and Clone from iClass bin file"}, {"decrypt", CmdHFiClassDecrypt, 1, "[f ] Decrypt tagdump" }, {"dump", CmdHFiClassReader_Dump, 0, "[options..] Authenticate and Dump iClass tag's AA1"}, @@ -1723,6 +1881,7 @@ static command_t CommandTable[] = int CmdHFiClass(const char *Cmd) { + clearCommandBuffer(); CmdsParse(CommandTable, Cmd); return 0; }