X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/5149e37e66dd3324905ec7e18e67798b03f16ef6..refs/pull/262/head:/client/cmdhfmf.c diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c index aae6290d..7a6aaa3b 100644 --- a/client/cmdhfmf.c +++ b/client/cmdhfmf.c @@ -8,89 +8,46 @@ // High frequency MIFARE commands //----------------------------------------------------------------------------- -#include "cmdhfmf.h" +#include +#include +#include +#include +#include +#include "proxmark3.h" +#include "cmdmain.h" +#include "util.h" +#include "ui.h" +#include "mifarehost.h" +#include "mifare.h" +#include "mfkey.h" + +#define NESTED_SECTOR_RETRY 10 // how often we try mfested() until we give up + static int CmdHelp(const char *Cmd); + int CmdHF14AMifare(const char *Cmd) { - uint32_t uid = 0; - uint32_t nt = 0, nr = 0; - uint64_t par_list = 0, ks_list = 0, r_key = 0; - uint8_t isOK = 0; - uint8_t keyBlock[8] = {0}; - - UsbCommand c = {CMD_READER_MIFARE, {true, 0, 0}}; - - // message - printf("-------------------------------------------------------------------------\n"); - printf("Executing command. Expected execution time: 25sec on average :-)\n"); - printf("Press the key on the proxmark3 device to abort both proxmark3 and client.\n"); - printf("-------------------------------------------------------------------------\n"); - - -start: - clearCommandBuffer(); - SendCommand(&c); - - //flush queue - while (ukbhit()) getchar(); - - // wait cycle - while (true) { - printf("."); - fflush(stdout); - if (ukbhit()) { - getchar(); - printf("\naborted via keyboard!\n"); - break; - } - - UsbCommand resp; - if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) { - isOK = resp.arg[0] & 0xff; - uid = (uint32_t)bytes_to_num(resp.d.asBytes + 0, 4); - nt = (uint32_t)bytes_to_num(resp.d.asBytes + 4, 4); - par_list = bytes_to_num(resp.d.asBytes + 8, 8); - ks_list = bytes_to_num(resp.d.asBytes + 16, 8); - nr = bytes_to_num(resp.d.asBytes + 24, 4); - printf("\n\n"); - if (!isOK) PrintAndLog("Proxmark can't get statistic info. Execution aborted.\n"); - break; - } - } + int isOK = 0; + uint64_t key = 0; - printf("\n"); - - // error - if (isOK != 1) return 1; - - // execute original function from util nonce2key - if (nonce2key(uid, nt, nr, par_list, ks_list, &r_key)) { - isOK = 2; - PrintAndLog("Key not found (lfsr_common_prefix list is null). Nt=%08x", nt); - } else { - printf("------------------------------------------------------------------\n"); - PrintAndLog("Key found:%012"llx" \n", r_key); - - num_to_bytes(r_key, 6, keyBlock); - isOK = mfCheckKeys(0, 0, 1, keyBlock, &r_key); - } - - if (!isOK) - PrintAndLog("Found valid key:%012"llx, r_key); - else - { - if (isOK != 2) PrintAndLog("Found invalid key. "); - PrintAndLog("Failing is expected to happen in 25%% of all cases. Trying again with a different reader nonce..."); - c.arg[0] = false; - goto start; + isOK = mfDarkside(&key); + switch (isOK) { + case -1 : PrintAndLog("Button pressed. Aborted."); return 1; + case -2 : PrintAndLog("Card is not vulnerable to Darkside attack (doesn't send NACK on authentication requests)."); return 1; + case -3 : PrintAndLog("Card is not vulnerable to Darkside attack (its random number generator is not predictable)."); return 1; + case -4 : PrintAndLog("Card is not vulnerable to Darkside attack (its random number generator seems to be based on the wellknown"); + PrintAndLog("generating polynomial with 16 effective bits only, but shows unexpected behaviour."); return 1; + case -5 : PrintAndLog("Aborted via keyboard."); return 1; + default : PrintAndLog("Found valid key:%012" PRIx64 "\n", key); } PrintAndLog(""); return 0; } + int CmdHF14AMfWrBl(const char *Cmd) { uint8_t blockNo = 0; @@ -140,117 +97,6 @@ int CmdHF14AMfWrBl(const char *Cmd) return 0; } -int CmdHF14AMfUWrBl(const char *Cmd) -{ - uint8_t blockNo = 0; - bool chinese_card=0; - uint8_t bldata[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; - UsbCommand resp; - - if (strlen(Cmd)<3) { - PrintAndLog("Usage: hf mf uwrbl "); - PrintAndLog(" sample: hf mf uwrbl 0 01020304"); - return 0; - } - - blockNo = param_get8(Cmd, 0); - if (param_gethex(Cmd, 1, bldata, 8)) { - PrintAndLog("Block data must include 8 HEX symbols"); - return 1; - } - - if (strchr(Cmd,'w') != 0) { - chinese_card=1; - } - - switch(blockNo){ - case 0: - if (!chinese_card){ - PrintAndLog("Access Denied"); - }else{ - PrintAndLog("--specialblock no:%d", blockNo); - PrintAndLog("--data: %s", sprint_hex(bldata, 4)); - UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}}; - memcpy(d.d.asBytes,bldata, 4); - SendCommand(&d); - - if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) { - uint8_t isOK = resp.arg[0] & 0xff; - PrintAndLog("isOk:%02x", isOK); - } else { - PrintAndLog("Command execute timeout"); - } - } - break; - case 1: - if (!chinese_card){ - PrintAndLog("Access Denied"); - }else{ - PrintAndLog("--specialblock no:%d", blockNo); - PrintAndLog("--data: %s", sprint_hex(bldata, 4)); - UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}}; - memcpy(d.d.asBytes,bldata, 4); - SendCommand(&d); - - if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) { - uint8_t isOK = resp.arg[0] & 0xff; - PrintAndLog("isOk:%02x", isOK); - } else { - PrintAndLog("Command execute timeout"); - } - } - break; - case 2: - if (!chinese_card){ - PrintAndLog("Access Denied"); - }else{ - PrintAndLog("--specialblock no:%d", blockNo); - PrintAndLog("--data: %s", sprint_hex(bldata, 4)); - UsbCommand c = {CMD_MIFAREU_WRITEBL, {blockNo}}; - memcpy(c.d.asBytes, bldata, 4); - SendCommand(&c); - - if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) { - uint8_t isOK = resp.arg[0] & 0xff; - PrintAndLog("isOk:%02x", isOK); - } else { - PrintAndLog("Command execute timeout"); - } - } - break; - case 3: - PrintAndLog("--specialblock no:%d", blockNo); - PrintAndLog("--data: %s", sprint_hex(bldata, 4)); - UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}}; - memcpy(d.d.asBytes,bldata, 4); - SendCommand(&d); - - if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) { - uint8_t isOK = resp.arg[0] & 0xff; - PrintAndLog("isOk:%02x", isOK); - } else { - PrintAndLog("Command execute timeout"); - } - break; - default: - PrintAndLog("--block no:%d", blockNo); - PrintAndLog("--data: %s", sprint_hex(bldata, 4)); - UsbCommand e = {CMD_MIFAREU_WRITEBL, {blockNo}}; - memcpy(e.d.asBytes,bldata, 4); - SendCommand(&e); - - if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) { - uint8_t isOK = resp.arg[0] & 0xff; - PrintAndLog("isOk:%02x", isOK); - } else { - PrintAndLog("Command execute timeout"); - } - break; - } - return 0; -} - - int CmdHF14AMfRdBl(const char *Cmd) { uint8_t blockNo = 0; @@ -299,87 +145,6 @@ int CmdHF14AMfRdBl(const char *Cmd) return 0; } -int CmdHF14AMfURdBl(const char *Cmd) -{ - uint8_t blockNo = 0; - - if (strlen(Cmd)<1) { - PrintAndLog("Usage: hf mf urdbl "); - PrintAndLog(" sample: hf mf urdbl 0"); - return 0; - } - - blockNo = param_get8(Cmd, 0); - PrintAndLog("--block no:%d", blockNo); - - UsbCommand c = {CMD_MIFAREU_READBL, {blockNo}}; - SendCommand(&c); - - UsbCommand resp; - if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) { - uint8_t isOK = resp.arg[0] & 0xff; - uint8_t *data = resp.d.asBytes; - - if (isOK) - PrintAndLog("isOk:%02x data:%s", isOK, sprint_hex(data, 4)); - else - PrintAndLog("isOk:%02x", isOK); - } else { - PrintAndLog("Command execute timeout"); - } - - return 0; -} - - -int CmdHF14AMfURdCard(const char *Cmd) -{ - int i; - uint8_t sectorNo = 0; - uint8_t *lockbytes_t=NULL; - uint8_t lockbytes[2]={0,0}; - bool bit[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; - - uint8_t isOK = 0; - uint8_t * data = NULL; - - PrintAndLog("Attempting to Read Ultralight... "); - - UsbCommand c = {CMD_MIFAREU_READCARD, {sectorNo}}; - SendCommand(&c); - - UsbCommand resp; - if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) { - isOK = resp.arg[0] & 0xff; - data = resp.d.asBytes; - - PrintAndLog("isOk:%02x", isOK); - if (isOK) - { // bit 0 and 1 - PrintAndLog("Block %3d:%s ", 0,sprint_hex(data + 0 * 4, 4)); - PrintAndLog("Block %3d:%s ", 1,sprint_hex(data + 1 * 4, 4)); - // bit 2 - //process lock bytes - lockbytes_t=data+(2*4); - lockbytes[0]=lockbytes_t[2]; - lockbytes[1]=lockbytes_t[3]; - for(int j=0; j<16; j++){ - bit[j]=lockbytes[j/8] & ( 1 <<(7-j%8)); - } - //remaining - for (i = 3; i < 16; i++) { - int bitnum = (23-i) % 16; - PrintAndLog("Block %3d:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[bitnum]); - } - - } - } else { - PrintAndLog("Command execute timeout"); - } - return 0; -} - - int CmdHF14AMfRdSc(const char *Cmd) { int i; @@ -496,7 +261,8 @@ int CmdHF14AMfDump(const char *Cmd) // Read keys A from file for (sectorNo=0; sectorNo>2) | ((data[8] & 0x1)<<1) | ((data[8] & 0x10)>>4); // C1C2C3 for data area 0 - rights[sectorNo][1] = ((data[7] & 0x20)>>3) | ((data[8] & 0x2)<<0) | ((data[8] & 0x20)>>5); // C1C2C3 for data area 1 - rights[sectorNo][2] = ((data[7] & 0x40)>>4) | ((data[8] & 0x4)>>1) | ((data[8] & 0x40)>>6); // C1C2C3 for data area 2 - rights[sectorNo][3] = ((data[7] & 0x80)>>5) | ((data[8] & 0x8)>>2) | ((data[8] & 0x80)>>7); // C1C2C3 for sector trailer + if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) { + uint8_t isOK = resp.arg[0] & 0xff; + uint8_t *data = resp.d.asBytes; + if (isOK){ + rights[sectorNo][0] = ((data[7] & 0x10)>>2) | ((data[8] & 0x1)<<1) | ((data[8] & 0x10)>>4); // C1C2C3 for data area 0 + rights[sectorNo][1] = ((data[7] & 0x20)>>3) | ((data[8] & 0x2)<<0) | ((data[8] & 0x20)>>5); // C1C2C3 for data area 1 + rights[sectorNo][2] = ((data[7] & 0x40)>>4) | ((data[8] & 0x4)>>1) | ((data[8] & 0x40)>>6); // C1C2C3 for data area 2 + rights[sectorNo][3] = ((data[7] & 0x80)>>5) | ((data[8] & 0x8)>>2) | ((data[8] & 0x80)>>7); // C1C2C3 for sector trailer + break; + } else if (tries == 2) { // on last try set defaults + PrintAndLog("Could not get access rights for sector %2d. Trying with defaults...", sectorNo); + rights[sectorNo][0] = rights[sectorNo][1] = rights[sectorNo][2] = 0x00; + rights[sectorNo][3] = 0x01; + } } else { - PrintAndLog("Could not get access rights for sector %2d. Trying with defaults...", sectorNo); + PrintAndLog("Command execute timeout when trying to read access rights for sector %2d. Trying with defaults...", sectorNo); rights[sectorNo][0] = rights[sectorNo][1] = rights[sectorNo][2] = 0x00; rights[sectorNo][3] = 0x01; } - } else { - PrintAndLog("Command execute timeout when trying to read access rights for sector %2d. Trying with defaults...", sectorNo); - rights[sectorNo][0] = rights[sectorNo][1] = rights[sectorNo][2] = 0x00; - rights[sectorNo][3] = 0x01; } } @@ -551,27 +321,33 @@ int CmdHF14AMfDump(const char *Cmd) for (sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) { for (blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) { bool received = false; - - if (blockNo == NumBlocksPerSector(sectorNo) - 1) { // sector trailer. At least the Access Conditions can always be read with key A. - UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 0, 0}}; - memcpy(c.d.asBytes, keyA[sectorNo], 6); - SendCommand(&c); - received = WaitForResponseTimeout(CMD_ACK,&resp,1500); - } else { // data block. Check if it can be read with key A or key B - uint8_t data_area = sectorNo<32?blockNo:blockNo/5; - if ((rights[sectorNo][data_area] == 0x03) || (rights[sectorNo][data_area] == 0x05)) { // only key B would work - UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 1, 0}}; - memcpy(c.d.asBytes, keyB[sectorNo], 6); - SendCommand(&c); - received = WaitForResponseTimeout(CMD_ACK,&resp,1500); - } else if (rights[sectorNo][data_area] == 0x07) { // no key would work - isOK = false; - PrintAndLog("Access rights do not allow reading of sector %2d block %3d", sectorNo, blockNo); - } else { // key A would work + for (tries = 0; tries < 3; tries++) { + if (blockNo == NumBlocksPerSector(sectorNo) - 1) { // sector trailer. At least the Access Conditions can always be read with key A. UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 0, 0}}; memcpy(c.d.asBytes, keyA[sectorNo], 6); SendCommand(&c); received = WaitForResponseTimeout(CMD_ACK,&resp,1500); + } else { // data block. Check if it can be read with key A or key B + uint8_t data_area = sectorNo<32?blockNo:blockNo/5; + if ((rights[sectorNo][data_area] == 0x03) || (rights[sectorNo][data_area] == 0x05)) { // only key B would work + UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 1, 0}}; + memcpy(c.d.asBytes, keyB[sectorNo], 6); + SendCommand(&c); + received = WaitForResponseTimeout(CMD_ACK,&resp,1500); + } else if (rights[sectorNo][data_area] == 0x07) { // no key would work + isOK = false; + PrintAndLog("Access rights do not allow reading of sector %2d block %3d", sectorNo, blockNo); + tries = 2; + } else { // key A would work + UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 0, 0}}; + memcpy(c.d.asBytes, keyA[sectorNo], 6); + SendCommand(&c); + received = WaitForResponseTimeout(CMD_ACK,&resp,1500); + } + } + if (received) { + isOK = resp.arg[0] & 0xff; + if (isOK) break; } } @@ -626,7 +402,7 @@ int CmdHF14AMfRestore(const char *Cmd) { uint8_t sectorNo,blockNo; uint8_t keyType = 0; - uint8_t key[6] = {0xFF}; + uint8_t key[6] = {0xFF,0xFF,0xFF,0xFF,0xFF,0xFF}; uint8_t bldata[16] = {0x00}; uint8_t keyA[40][6]; uint8_t keyB[40][6]; @@ -660,16 +436,17 @@ int CmdHF14AMfRestore(const char *Cmd) } for (sectorNo = 0; sectorNo < numSectors; sectorNo++) { - if (fread(keyA[sectorNo], 1, 6, fkeys) == 0) { + size_t bytes_read = fread(keyA[sectorNo], 1, 6, fkeys); + if (bytes_read != 6) { PrintAndLog("File reading error (dumpkeys.bin)."); - fclose(fkeys); return 2; } } for (sectorNo = 0; sectorNo < numSectors; sectorNo++) { - if (fread(keyB[sectorNo], 1, 6, fkeys) == 0) { + size_t bytes_read = fread(keyB[sectorNo], 1, 6, fkeys); + if (bytes_read != 6) { PrintAndLog("File reading error (dumpkeys.bin)."); fclose(fkeys); return 2; @@ -689,7 +466,8 @@ int CmdHF14AMfRestore(const char *Cmd) UsbCommand c = {CMD_MIFARE_WRITEBL, {FirstBlockOfSector(sectorNo) + blockNo, keyType, 0}}; memcpy(c.d.asBytes, key, 6); - if (fread(bldata, 1, 16, fdump) == 0) { + size_t bytes_read = fread(bldata, 1, 16, fdump); + if (bytes_read != 16) { PrintAndLog("File reading error (dumpdata.bin)."); fclose(fdump); return 2; @@ -729,17 +507,24 @@ int CmdHF14AMfRestore(const char *Cmd) return 0; } + +typedef struct { + uint64_t Key[2]; + int foundKey[2]; +} sector_t; + + int CmdHF14AMfNested(const char *Cmd) { int i, j, res, iterations; - sector *e_sector = NULL; + sector_t *e_sector = NULL; uint8_t blockNo = 0; uint8_t keyType = 0; uint8_t trgBlockNo = 0; uint8_t trgKeyType = 0; uint8_t SectorsCnt = 0; uint8_t key[6] = {0, 0, 0, 0, 0, 0}; - uint8_t keyBlock[13*6]; + uint8_t keyBlock[14*6]; uint64_t key64 = 0; bool transferToEml = false; @@ -814,13 +599,19 @@ int CmdHF14AMfNested(const char *Cmd) if (cmdp == 'o') { PrintAndLog("--target block no:%3d, target key type:%c ", trgBlockNo, trgKeyType?'B':'A'); - if (mfnested(blockNo, keyType, key, trgBlockNo, trgKeyType, keyBlock, true)) { - PrintAndLog("Nested error."); + int16_t isOK = mfnested(blockNo, keyType, key, trgBlockNo, trgKeyType, keyBlock, true); + if (isOK) { + switch (isOK) { + case -1 : PrintAndLog("Error: No response from Proxmark.\n"); break; + case -2 : PrintAndLog("Button pressed. Aborted.\n"); break; + case -3 : PrintAndLog("Tag isn't vulnerable to Nested Attack (random numbers are not predictable).\n"); break; + default : PrintAndLog("Unknown Error.\n"); + } return 2; } key64 = bytes_to_num(keyBlock, 6); if (key64) { - PrintAndLog("Found valid key:%012"llx, key64); + PrintAndLog("Found valid key:%012" PRIx64, key64); // transfer key to the emulator if (transferToEml) { @@ -843,10 +634,10 @@ int CmdHF14AMfNested(const char *Cmd) } } else { // ------------------------------------ multiple sectors working - clock_t time1; - time1 = clock(); + uint64_t msclock1; + msclock1 = msclock(); - e_sector = calloc(SectorsCnt, sizeof(sector)); + e_sector = calloc(SectorsCnt, sizeof(sector_t)); if (e_sector == NULL) return 1; //test current key and additional standard keys first @@ -870,7 +661,7 @@ int CmdHF14AMfNested(const char *Cmd) for (j = 0; j < 2; j++) { if (e_sector[i].foundKey[j]) continue; - res = mfCheckKeys(FirstBlockOfSector(i), j, 6, keyBlock, &key64); + res = mfCheckKeys(FirstBlockOfSector(i), j, true, 6, keyBlock, &key64); if (!res) { e_sector[i].Key[j] = key64; @@ -888,11 +679,17 @@ int CmdHF14AMfNested(const char *Cmd) for (trgKeyType = 0; trgKeyType < 2; trgKeyType++) { if (e_sector[sectorNo].foundKey[trgKeyType]) continue; PrintAndLog("-----------------------------------------------"); - if(mfnested(blockNo, keyType, key, FirstBlockOfSector(sectorNo), trgKeyType, keyBlock, calibrate)) { - PrintAndLog("Nested error.\n"); + int16_t isOK = mfnested(blockNo, keyType, key, FirstBlockOfSector(sectorNo), trgKeyType, keyBlock, calibrate); + if(isOK) { + switch (isOK) { + case -1 : PrintAndLog("Error: No response from Proxmark.\n"); break; + case -2 : PrintAndLog("Button pressed. Aborted.\n"); break; + case -3 : PrintAndLog("Tag isn't vulnerable to Nested Attack (random numbers are not predictable).\n"); break; + default : PrintAndLog("Unknown Error.\n"); + } free(e_sector); - return 2; } - else { + return 2; + } else { calibrate = false; } @@ -900,7 +697,7 @@ int CmdHF14AMfNested(const char *Cmd) key64 = bytes_to_num(keyBlock, 6); if (key64) { - PrintAndLog("Found valid key:%012"llx, key64); + PrintAndLog("Found valid key:%012" PRIx64, key64); e_sector[sectorNo].foundKey[trgKeyType] = 1; e_sector[sectorNo].Key[trgKeyType] = key64; } @@ -908,7 +705,7 @@ int CmdHF14AMfNested(const char *Cmd) } } - printf("Time in nested: %1.3f (%1.3f sec per key)\n\n", ((float)clock() - time1)/CLOCKS_PER_SEC, ((float)clock() - time1)/iterations/CLOCKS_PER_SEC); + printf("Time in nested: %1.3f (%1.3f sec per key)\n\n", ((float)(msclock() - msclock1))/1000.0, ((float)(msclock() - msclock1))/iterations/1000.0); PrintAndLog("-----------------------------------------------\nIterations count: %d\n\n", iterations); //print them @@ -916,7 +713,7 @@ int CmdHF14AMfNested(const char *Cmd) PrintAndLog("|sec|key A |res|key B |res|"); PrintAndLog("|---|----------------|---|----------------|---|"); for (i = 0; i < SectorsCnt; i++) { - PrintAndLog("|%03d| %012"llx" | %d | %012"llx" | %d |", i, + PrintAndLog("|%03d| %012" PRIx64 " | %d | %012" PRIx64 " | %d |", i, e_sector[i].Key[0], e_sector[i].foundKey[0], e_sector[i].Key[1], e_sector[i].foundKey[1]); } PrintAndLog("|---|----------------|---|----------------|---|"); @@ -970,12 +767,14 @@ int CmdHF14AMfNested(const char *Cmd) int CmdHF14AMfChk(const char *Cmd) { if (strlen(Cmd)<3) { - PrintAndLog("Usage: hf mf chk |<*card memory> [t] [] []"); + PrintAndLog("Usage: hf mf chk |<*card memory> [t|d] [] []"); PrintAndLog(" * - all sectors"); PrintAndLog("card memory - 0 - MINI(320 bytes), 1 - 1K, 2 - 2K, 4 - 4K, - 1K"); PrintAndLog("d - write keys to binary file\n"); + PrintAndLog("t - write keys to emulator memory"); PrintAndLog(" sample: hf mf chk 0 A 1234567890ab keys.dic"); PrintAndLog(" hf mf chk *1 ? t"); + PrintAndLog(" hf mf chk *1 ? d"); return 0; } @@ -1099,13 +898,14 @@ int CmdHF14AMfChk(const char *Cmd) if (!p) { PrintAndLog("Cannot allocate memory for defKeys"); free(keyBlock); + fclose(f); return 2; } keyBlock = p; } memset(keyBlock + 6 * keycnt, 0, 6); num_to_bytes(strtoll(buf, NULL, 16), 6, keyBlock + 6*keycnt); - PrintAndLog("chk custom key[%2d] %012"llx, keycnt, bytes_to_num(keyBlock + 6*keycnt, 6)); + PrintAndLog("chk custom key[%2d] %012" PRIx64 , keycnt, bytes_to_num(keyBlock + 6*keycnt, 6)); keycnt++; memset(buf, 0, sizeof(buf)); } @@ -1146,10 +946,10 @@ int CmdHF14AMfChk(const char *Cmd) uint32_t max_keys = keycnt>USB_CMD_DATA_SIZE/6?USB_CMD_DATA_SIZE/6:keycnt; for (uint32_t c = 0; c < keycnt; c+=max_keys) { uint32_t size = keycnt-c>max_keys?max_keys:keycnt-c; - res = mfCheckKeys(b, t, size, &keyBlock[6*c], &key64); + res = mfCheckKeys(b, t, true, size, &keyBlock[6*c], &key64); if (res != 1) { if (!res) { - PrintAndLog("Found valid key:[%012"llx"]",key64); + PrintAndLog("Found valid key:[%012" PRIx64 "]",key64); num_to_bytes(key64, 6, foundKey[t][i]); validKey[t][i] = true; } @@ -1196,68 +996,309 @@ int CmdHF14AMfChk(const char *Cmd) return 0; } -int CmdHF14AMf1kSim(const char *Cmd) -{ - uint8_t uid[7] = {0, 0, 0, 0, 0, 0, 0}; +void readerAttack(nonces_t ar_resp[], bool setEmulatorMem, bool doStandardAttack) { + #define ATTACK_KEY_COUNT 8 // keep same as define in iso14443a.c -> Mifare1ksim() + uint64_t key = 0; + typedef struct { + uint64_t keyA; + uint64_t keyB; + } st_t; + st_t sector_trailer[ATTACK_KEY_COUNT]; + memset(sector_trailer, 0x00, sizeof(sector_trailer)); + + uint8_t stSector[ATTACK_KEY_COUNT]; + memset(stSector, 0x00, sizeof(stSector)); + uint8_t key_cnt[ATTACK_KEY_COUNT]; + memset(key_cnt, 0x00, sizeof(key_cnt)); + + for (uint8_t i = 0; i 0) { + //PrintAndLog("DEBUG: Trying sector %d, cuid %08x, nt %08x, ar %08x, nr %08x, ar2 %08x, nr2 %08x",ar_resp[i].sector, ar_resp[i].cuid,ar_resp[i].nonce,ar_resp[i].ar,ar_resp[i].nr,ar_resp[i].ar2,ar_resp[i].nr2); + if (doStandardAttack && mfkey32(ar_resp[i], &key)) { + PrintAndLog(" Found Key%s for sector %02d: [%04x%08x]", (ar_resp[i].keytype) ? "B" : "A", ar_resp[i].sector, (uint32_t) (key>>32), (uint32_t) (key &0xFFFFFFFF)); + + for (uint8_t ii = 0; ii0) { + uint8_t memBlock[16]; + memset(memBlock, 0x00, sizeof(memBlock)); + char cmd1[36]; + memset(cmd1,0x00,sizeof(cmd1)); + snprintf(cmd1,sizeof(cmd1),"%04x%08xFF078069%04x%08x",(uint32_t) (sector_trailer[i].keyA>>32), (uint32_t) (sector_trailer[i].keyA &0xFFFFFFFF),(uint32_t) (sector_trailer[i].keyB>>32), (uint32_t) (sector_trailer[i].keyB &0xFFFFFFFF)); + PrintAndLog("Setting Emulator Memory Block %02d: [%s]",stSector[i]*4+3, cmd1); + if (param_gethex(cmd1, 0, memBlock, 32)) { + PrintAndLog("block data must include 32 HEX symbols"); + return; + } + + UsbCommand c = {CMD_MIFARE_EML_MEMSET, {(stSector[i]*4+3), 1, 0}}; + memcpy(c.d.asBytes, memBlock, 16); + clearCommandBuffer(); + SendCommand(&c); + } + } + } + /* + //un-comment to use as well moebius attack + for (uint8_t i = ATTACK_KEY_COUNT; i 0) { + if (tryMfk32_moebius(ar_resp[i], &key)) { + PrintAndLog("M-Found Key%s for sector %02d: [%04x%08x]", (ar_resp[i].keytype) ? "B" : "A", ar_resp[i].sector, (uint32_t) (key>>32), (uint32_t) (key &0xFFFFFFFF)); + } + } + }*/ +} + +int usage_hf14_mf1ksim(void) { + PrintAndLog("Usage: hf mf sim h u n i x"); + PrintAndLog("options:"); + PrintAndLog(" h this help"); + PrintAndLog(" u (Optional) UID 4,7 or 10 bytes. If not specified, the UID 4B from emulator memory will be used"); + PrintAndLog(" n (Optional) Automatically exit simulation after blocks have been read by reader. 0 = infinite"); + PrintAndLog(" i (Optional) Interactive, means that console will not be returned until simulation finishes or is aborted"); + PrintAndLog(" x (Optional) Crack, performs the 'reader attack', nr/ar attack against a legitimate reader, fishes out the key(s)"); + PrintAndLog(" e (Optional) set keys found from 'reader attack' to emulator memory (implies x and i)"); + PrintAndLog(" f (Optional) get UIDs to use for 'reader attack' from file 'f ' (implies x and i)"); + PrintAndLog(" r (Optional) Generate random nonces instead of sequential nonces. Standard reader attack won't work with this option, only moebius attack works."); + PrintAndLog("samples:"); + PrintAndLog(" hf mf sim u 0a0a0a0a"); + PrintAndLog(" hf mf sim u 11223344556677"); + PrintAndLog(" hf mf sim u 112233445566778899AA"); + PrintAndLog(" hf mf sim f uids.txt"); + PrintAndLog(" hf mf sim u 0a0a0a0a e"); + + return 0; +} + +int CmdHF14AMf1kSim(const char *Cmd) { + UsbCommand resp; + uint8_t uid[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; uint8_t exitAfterNReads = 0; uint8_t flags = 0; + int uidlen = 0; + uint8_t pnr = 0; + bool setEmulatorMem = false; + bool attackFromFile = false; + FILE *f; + char filename[FILE_PATH_SIZE]; + memset(filename, 0x00, sizeof(filename)); + int len = 0; + char buf[64]; - if (param_getchar(Cmd, 0) == 'h') { - PrintAndLog("Usage: hf mf sim u n i x"); - PrintAndLog(" u (Optional) UID. If not specified, the UID from emulator memory will be used"); - PrintAndLog(" n (Optional) Automatically exit simulation after blocks have been read by reader. 0 = infinite"); - PrintAndLog(" i (Optional) Interactive, means that console will not be returned until simulation finishes or is aborted"); - PrintAndLog(" x (Optional) Crack, performs the 'reader attack', nr/ar attack against a legitimate reader, fishes out the key(s)"); - PrintAndLog(" sample: hf mf sim u 0a0a0a0a "); - return 0; + uint8_t cmdp = 0; + bool errors = false; + + while(param_getchar(Cmd, cmdp) != 0x00) { + switch(param_getchar(Cmd, cmdp)) { + case 'e': + case 'E': + setEmulatorMem = true; + //implies x and i + flags |= FLAG_INTERACTIVE; + flags |= FLAG_NR_AR_ATTACK; + cmdp++; + break; + case 'f': + case 'F': + len = param_getstr(Cmd, cmdp+1, filename); + if (len < 1) { + PrintAndLog("error no filename found"); + return 0; + } + attackFromFile = true; + //implies x and i + flags |= FLAG_INTERACTIVE; + flags |= FLAG_NR_AR_ATTACK; + cmdp += 2; + break; + case 'h': + case 'H': + return usage_hf14_mf1ksim(); + case 'i': + case 'I': + flags |= FLAG_INTERACTIVE; + cmdp++; + break; + case 'n': + case 'N': + exitAfterNReads = param_get8(Cmd, pnr+1); + cmdp += 2; + break; + case 'r': + case 'R': + flags |= FLAG_RANDOM_NONCE; + cmdp++; + break; + case 'u': + case 'U': + param_gethex_ex(Cmd, cmdp+1, uid, &uidlen); + switch(uidlen) { + case 20: flags = FLAG_10B_UID_IN_DATA; break; //not complete + case 14: flags = FLAG_7B_UID_IN_DATA; break; + case 8: flags = FLAG_4B_UID_IN_DATA; break; + default: return usage_hf14_mf1ksim(); + } + cmdp += 2; + break; + case 'x': + case 'X': + flags |= FLAG_NR_AR_ATTACK; + cmdp++; + break; + default: + PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); + errors = true; + break; + } + if(errors) break; } - uint8_t pnr = 0; - if (param_getchar(Cmd, pnr) == 'u') { - if(param_gethex(Cmd, pnr+1, uid, 8) == 0) - { - flags |= FLAG_4B_UID_IN_DATA; // UID from packet - } else if(param_gethex(Cmd,pnr+1,uid,14) == 0) { - flags |= FLAG_7B_UID_IN_DATA;// UID from packet - } else { - PrintAndLog("UID, if specified, must include 8 or 14 HEX symbols"); + //Validations + if(errors) return usage_hf14_mf1ksim(); + + //get uid from file + if (attackFromFile) { + int count = 0; + // open file + f = fopen(filename, "r"); + if (f == NULL) { + PrintAndLog("File %s not found or locked", filename); return 1; } - pnr +=2; - } - if (param_getchar(Cmd, pnr) == 'n') { - exitAfterNReads = param_get8(Cmd,pnr+1); - pnr += 2; - } - if (param_getchar(Cmd, pnr) == 'i' ) { - //Using a flag to signal interactiveness, least significant bit - flags |= FLAG_INTERACTIVE; - pnr++; - } + PrintAndLog("Loading file and simulating. Press keyboard to abort"); + while(!feof(f) && !ukbhit()){ + memset(buf, 0, sizeof(buf)); + memset(uid, 0, sizeof(uid)); - if (param_getchar(Cmd, pnr) == 'x' ) { - //Using a flag to signal interactiveness, least significant bit - flags |= FLAG_NR_AR_ATTACK; - } - PrintAndLog(" uid:%s, numreads:%d, flags:%d (0x%02x) ", - flags & FLAG_4B_UID_IN_DATA ? sprint_hex(uid,4): - flags & FLAG_7B_UID_IN_DATA ? sprint_hex(uid,7): "N/A" - , exitAfterNReads, flags,flags); + if (fgets(buf, sizeof(buf), f) == NULL) { + if (count > 0) break; + + PrintAndLog("File reading error."); + fclose(f); + return 2; + } + if(!strlen(buf) && feof(f)) break; + + uidlen = strlen(buf)-1; + switch(uidlen) { + case 20: flags |= FLAG_10B_UID_IN_DATA; break; //not complete + case 14: flags |= FLAG_7B_UID_IN_DATA; break; + case 8: flags |= FLAG_4B_UID_IN_DATA; break; + default: + PrintAndLog("uid in file wrong length at %d (length: %d) [%s]",count, uidlen, buf); + fclose(f); + return 2; + } + for (uint8_t i = 0; i < uidlen; i += 2) { + sscanf(&buf[i], "%02x", (unsigned int *)&uid[i / 2]); + } + + PrintAndLog("mf 1k sim uid: %s, numreads:%d, flags:%d (0x%02x) - press button to abort", + flags & FLAG_4B_UID_IN_DATA ? sprint_hex(uid,4): + flags & FLAG_7B_UID_IN_DATA ? sprint_hex(uid,7): + flags & FLAG_10B_UID_IN_DATA ? sprint_hex(uid,10): "N/A" + , exitAfterNReads, flags, flags); + + UsbCommand c = {CMD_SIMULATE_MIFARE_CARD, {flags, exitAfterNReads,0}}; + memcpy(c.d.asBytes, uid, sizeof(uid)); + clearCommandBuffer(); + SendCommand(&c); - UsbCommand c = {CMD_SIMULATE_MIFARE_CARD, {flags, exitAfterNReads,0}}; - memcpy(c.d.asBytes, uid, sizeof(uid)); - SendCommand(&c); + while(! WaitForResponseTimeout(CMD_ACK,&resp,1500)) { + //We're waiting only 1.5 s at a time, otherwise we get the + // annoying message about "Waiting for a response... " + } + //got a response + nonces_t ar_resp[ATTACK_KEY_COUNT*2]; + memcpy(ar_resp, resp.d.asBytes, sizeof(ar_resp)); + // We can skip the standard attack if we have RANDOM_NONCE set. + readerAttack(ar_resp, setEmulatorMem, !(flags & FLAG_RANDOM_NONCE)); + if ((bool)resp.arg[1]) { + PrintAndLog("Device button pressed - quitting"); + fclose(f); + return 4; + } + count++; + } + fclose(f); + } else { //not from file - if(flags & FLAG_INTERACTIVE) - { - UsbCommand resp; - PrintAndLog("Press pm3-button to abort simulation"); - while(! WaitForResponseTimeout(CMD_ACK,&resp,1500)) { - //We're waiting only 1.5 s at a time, otherwise we get the - // annoying message about "Waiting for a response... " + PrintAndLog("mf 1k sim uid: %s, numreads:%d, flags:%d (0x%02x) ", + flags & FLAG_4B_UID_IN_DATA ? sprint_hex(uid,4): + flags & FLAG_7B_UID_IN_DATA ? sprint_hex(uid,7): + flags & FLAG_10B_UID_IN_DATA ? sprint_hex(uid,10): "N/A" + , exitAfterNReads, flags, flags); + + UsbCommand c = {CMD_SIMULATE_MIFARE_CARD, {flags, exitAfterNReads,0}}; + memcpy(c.d.asBytes, uid, sizeof(uid)); + clearCommandBuffer(); + SendCommand(&c); + + if(flags & FLAG_INTERACTIVE) { + PrintAndLog("Press pm3-button to abort simulation"); + while(! WaitForResponseTimeout(CMD_ACK,&resp,1500)) { + //We're waiting only 1.5 s at a time, otherwise we get the + // annoying message about "Waiting for a response... " + } + //got a response + if (flags & FLAG_NR_AR_ATTACK) { + nonces_t ar_resp[ATTACK_KEY_COUNT*2]; + memcpy(ar_resp, resp.d.asBytes, sizeof(ar_resp)); + // We can skip the standard attack if we have RANDOM_NONCE set. + readerAttack(ar_resp, setEmulatorMem, !(flags & FLAG_RANDOM_NONCE)); + } } } - + return 0; } @@ -1288,7 +1329,7 @@ int CmdHF14AMfDbg(const char *Cmd) int CmdHF14AMfEGet(const char *Cmd) { uint8_t blockNo = 0; - uint8_t data[16]; + uint8_t data[16] = {0x00}; if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') { PrintAndLog("Usage: hf mf eget "); @@ -1355,14 +1396,11 @@ int CmdHF14AMfELoad(const char *Cmd) FILE * f; char filename[FILE_PATH_SIZE]; char *fnameptr = filename; - char buf[64]; - uint8_t buf8[64]; + char buf[64] = {0x00}; + uint8_t buf8[64] = {0x00}; int i, len, blockNum, numBlocks; int nameParamNo = 1; - memset(filename, 0, sizeof(filename)); - memset(buf, 0, sizeof(buf)); - char ctmp = param_getchar(Cmd, 0); if ( ctmp == 'h' || ctmp == 0x00) { @@ -1389,7 +1427,7 @@ int CmdHF14AMfELoad(const char *Cmd) len = param_getstr(Cmd,nameParamNo,filename); - if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; + if (len > FILE_PATH_SIZE - 5) len = FILE_PATH_SIZE - 5; fnameptr += len; @@ -1432,11 +1470,13 @@ int CmdHF14AMfELoad(const char *Cmd) fclose(f); return 3; } + printf("."); blockNum++; if (blockNum >= numBlocks) break; } fclose(f); + printf("\n"); if ((blockNum != numBlocks)) { PrintAndLog("File content error. Got %d must be %d blocks.",blockNum, numBlocks); @@ -1486,17 +1526,20 @@ int CmdHF14AMfESave(const char *Cmd) len = param_getstr(Cmd,nameParamNo,filename); - if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; + if (len > FILE_PATH_SIZE - 5) len = FILE_PATH_SIZE - 5; // user supplied filename? if (len < 1) { // get filename (UID from memory) if (mfEmlGetMem(buf, 0, 1)) { PrintAndLog("Can\'t get UID from block: %d", 0); - sprintf(filename, "dump.eml"); + len = sprintf(fnameptr, "dump"); + fnameptr += len; + } + else { + for (j = 0; j < 7; j++, fnameptr += 2) + sprintf(fnameptr, "%02X", buf[j]); } - for (j = 0; j < 7; j++, fnameptr += 2) - sprintf(fnameptr, "%02X", buf[j]); } else { fnameptr += len; } @@ -1607,7 +1650,7 @@ int CmdHF14AMfEKeyPrn(const char *Cmd) } keyA = bytes_to_num(data, 6); keyB = bytes_to_num(data + 10, 6); - PrintAndLog("|%03d| %012"llx" | %012"llx" |", i, keyA, keyB); + PrintAndLog("|%03d| %012" PRIx64 " | %012" PRIx64 " |", i, keyA, keyB); } PrintAndLog("|---|----------------|----------------|"); @@ -1620,27 +1663,60 @@ int CmdHF14AMfCSetUID(const char *Cmd) uint8_t wipeCard = 0; uint8_t uid[8] = {0x00}; uint8_t oldUid[8] = {0x00}; + uint8_t atqa[2] = {0x00}; + uint8_t sak[1] = {0x00}; + uint8_t atqaPresent = 1; int res; - - if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') { - PrintAndLog("Usage: hf mf csetuid "); - PrintAndLog("sample: hf mf csetuid 01020304 w"); - PrintAndLog("Set UID for magic Chinese card (only works with!!!)"); - PrintAndLog("If you want wipe card then add 'w' into command line. \n"); + char ctmp; + int argi=0; + + if (strlen(Cmd) < 1 || param_getchar(Cmd, argi) == 'h') { + PrintAndLog("Usage: hf mf csetuid [ATQA 4 hex symbols SAK 2 hex symbols] [w]"); + PrintAndLog("sample: hf mf csetuid 01020304"); + PrintAndLog("sample: hf mf csetuid 01020304 0004 08 w"); + PrintAndLog("Set UID, ATQA, and SAK for magic Chinese card (only works with such cards)"); + PrintAndLog("If you also want to wipe the card then add 'w' at the end of the command line."); return 0; - } + } - if (param_getchar(Cmd, 0) && param_gethex(Cmd, 0, uid, 8)) { + if (param_getchar(Cmd, argi) && param_gethex(Cmd, argi, uid, 8)) { PrintAndLog("UID must include 8 HEX symbols"); return 1; } + argi++; - char ctmp = param_getchar(Cmd, 1); - if (ctmp == 'w' || ctmp == 'W') wipeCard = 1; - - PrintAndLog("--wipe card:%02x uid:%s", wipeCard, sprint_hex(uid, 4)); + ctmp = param_getchar(Cmd, argi); + if (ctmp == 'w' || ctmp == 'W') { + wipeCard = 1; + atqaPresent = 0; + } + + if (atqaPresent) { + if (param_getchar(Cmd, argi)) { + if (param_gethex(Cmd, argi, atqa, 4)) { + PrintAndLog("ATQA must include 4 HEX symbols"); + return 1; + } + argi++; + if (!param_getchar(Cmd, argi) || param_gethex(Cmd, argi, sak, 2)) { + PrintAndLog("SAK must include 2 HEX symbols"); + return 1; + } + argi++; + } else + atqaPresent = 0; + } - res = mfCSetUID(uid, oldUid, wipeCard); + if(!wipeCard) { + ctmp = param_getchar(Cmd, argi); + if (ctmp == 'w' || ctmp == 'W') { + wipeCard = 1; + } + } + + PrintAndLog("--wipe card:%s uid:%s", (wipeCard)?"YES":"NO", sprint_hex(uid, 4)); + + res = mfCSetUID(uid, (atqaPresent)?atqa:NULL, (atqaPresent)?sak:NULL, oldUid, wipeCard); if (res) { PrintAndLog("Can't set UID. error=%d", res); return 1; @@ -1653,17 +1729,16 @@ int CmdHF14AMfCSetUID(const char *Cmd) int CmdHF14AMfCSetBlk(const char *Cmd) { - uint8_t uid[8]; - uint8_t memBlock[16]; + uint8_t memBlock[16] = {0x00}; uint8_t blockNo = 0; + bool wipeCard = false; int res; - memset(memBlock, 0x00, sizeof(memBlock)); if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') { - PrintAndLog("Usage: hf mf csetblk "); + PrintAndLog("Usage: hf mf csetblk [w]"); PrintAndLog("sample: hf mf csetblk 1 01020304050607080910111213141516"); - PrintAndLog("Set block data for magic Chinese card (only works with!!!)"); - PrintAndLog("If you want wipe card then add 'w' into command line. \n"); + PrintAndLog("Set block data for magic Chinese card (only works with such cards)"); + PrintAndLog("If you also want wipe the card then add 'w' at the end of the command line"); return 0; } @@ -1674,15 +1749,15 @@ int CmdHF14AMfCSetBlk(const char *Cmd) return 1; } + char ctmp = param_getchar(Cmd, 2); + wipeCard = (ctmp == 'w' || ctmp == 'W'); PrintAndLog("--block number:%2d data:%s", blockNo, sprint_hex(memBlock, 16)); - res = mfCSetBlock(blockNo, memBlock, uid, 0, CSETBLOCK_SINGLE_OPER); + res = mfCSetBlock(blockNo, memBlock, NULL, wipeCard, CSETBLOCK_SINGLE_OPER); if (res) { - PrintAndLog("Can't write block. error=%d", res); - return 1; - } - - PrintAndLog("UID:%s", sprint_hex(uid, 4)); + PrintAndLog("Can't write block. error=%d", res); + return 1; + } return 0; } @@ -1695,13 +1770,10 @@ int CmdHF14AMfCLoad(const char *Cmd) char buf[64] = {0x00}; uint8_t buf8[64] = {0x00}; uint8_t fillFromEmulator = 0; - int i, len, blockNum, flags; + int i, len, blockNum, flags=0; - // memset(filename, 0, sizeof(filename)); - // memset(buf, 0, sizeof(buf)); - if (param_getchar(Cmd, 0) == 'h' || param_getchar(Cmd, 0)== 0x00) { - PrintAndLog("It loads magic Chinese card (only works with!!!) from the file `filename.eml`"); + PrintAndLog("It loads magic Chinese card from the file `filename.eml`"); PrintAndLog("or from emulator memory (option `e`)"); PrintAndLog("Usage: hf mf cload "); PrintAndLog(" or: hf mf cload e "); @@ -1713,15 +1785,14 @@ int CmdHF14AMfCLoad(const char *Cmd) if (ctmp == 'e' || ctmp == 'E') fillFromEmulator = 1; if (fillFromEmulator) { - flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC; for (blockNum = 0; blockNum < 16 * 4; blockNum += 1) { if (mfEmlGetMem(buf8, blockNum, 1)) { PrintAndLog("Cant get block: %d", blockNum); return 2; } - - if (blockNum == 2) flags = 0; - if (blockNum == 16 * 4 - 1) flags = CSETBLOCK_HALT + CSETBLOCK_RESET_FIELD; + if (blockNum == 0) flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC; // switch on field and send magic sequence + if (blockNum == 1) flags = 0; // just write + if (blockNum == 16 * 4 - 1) flags = CSETBLOCK_HALT + CSETBLOCK_RESET_FIELD; // Done. Magic Halt and switch off field. if (mfCSetBlock(blockNum, buf8, NULL, 0, flags)) { PrintAndLog("Cant set magic card block: %d", blockNum); @@ -1731,7 +1802,7 @@ int CmdHF14AMfCLoad(const char *Cmd) return 0; } else { len = strlen(Cmd); - if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; + if (len > FILE_PATH_SIZE - 5) len = FILE_PATH_SIZE - 5; memcpy(filename, Cmd, len); fnameptr += len; @@ -1746,28 +1817,33 @@ int CmdHF14AMfCLoad(const char *Cmd) } blockNum = 0; - flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC; while(!feof(f)){ + memset(buf, 0, sizeof(buf)); + if (fgets(buf, sizeof(buf), f) == NULL) { + fclose(f); PrintAndLog("File reading error."); return 2; } - if (strlen(buf) < 32){ + if (strlen(buf) < 32) { if(strlen(buf) && feof(f)) break; PrintAndLog("File content error. Block data must include 32 HEX symbols"); + fclose(f); return 2; } for (i = 0; i < 32; i += 2) sscanf(&buf[i], "%02x", (unsigned int *)&buf8[i / 2]); - if (blockNum == 2) flags = 0; - if (blockNum == 16 * 4 - 1) flags = CSETBLOCK_HALT + CSETBLOCK_RESET_FIELD; + if (blockNum == 0) flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC; // switch on field and send magic sequence + if (blockNum == 1) flags = 0; // just write + if (blockNum == 16 * 4 - 1) flags = CSETBLOCK_HALT + CSETBLOCK_RESET_FIELD; // Done. Switch off field. if (mfCSetBlock(blockNum, buf8, NULL, 0, flags)) { PrintAndLog("Can't set magic card block: %d", blockNum); + fclose(f); return 3; } blockNum++; @@ -1783,6 +1859,7 @@ int CmdHF14AMfCLoad(const char *Cmd) PrintAndLog("Loaded from file: %s", filename); return 0; } + return 0; } int CmdHF14AMfCGetBlk(const char *Cmd) { @@ -1794,7 +1871,7 @@ int CmdHF14AMfCGetBlk(const char *Cmd) { if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') { PrintAndLog("Usage: hf mf cgetblk "); PrintAndLog("sample: hf mf cgetblk 1"); - PrintAndLog("Get block data from magic Chinese card (only works with!!!)\n"); + PrintAndLog("Get block data from magic Chinese card (only works with such cards)\n"); return 0; } @@ -1814,15 +1891,14 @@ int CmdHF14AMfCGetBlk(const char *Cmd) { int CmdHF14AMfCGetSc(const char *Cmd) { - uint8_t memBlock[16]; + uint8_t memBlock[16] = {0x00}; uint8_t sectorNo = 0; int i, res, flags; - memset(memBlock, 0x00, sizeof(memBlock)); if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') { PrintAndLog("Usage: hf mf cgetsc "); PrintAndLog("sample: hf mf cgetsc 0"); - PrintAndLog("Get sector data from magic Chinese card (only works with!!!)\n"); + PrintAndLog("Get sector data from magic Chinese card (only works with such cards)\n"); return 0; } @@ -1896,16 +1972,19 @@ int CmdHF14AMfCSave(const char *Cmd) { return 0; } else { len = strlen(Cmd); - if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; + if (len > FILE_PATH_SIZE - 5) len = FILE_PATH_SIZE - 5; if (len < 1) { // get filename if (mfCGetBlock(0, buf, CSETBLOCK_SINGLE_OPER)) { PrintAndLog("Cant get block: %d", 0); - return 1; + len = sprintf(fnameptr, "dump"); + fnameptr += len; + } + else { + for (j = 0; j < 7; j++, fnameptr += 2) + sprintf(fnameptr, "%02x", buf[j]); } - for (j = 0; j < 7; j++, fnameptr += 2) - sprintf(fnameptr, "%02x", buf[j]); } else { memcpy(filename, Cmd, len); fnameptr += len; @@ -1955,18 +2034,19 @@ int CmdHF14AMfSniff(const char *Cmd){ int res = 0; int len = 0; int blockLen = 0; - int num = 0; int pckNum = 0; + int num = 0; uint8_t uid[7]; uint8_t uid_len; - uint8_t atqa[2]; + uint8_t atqa[2] = {0x00}; uint8_t sak; bool isTag; - uint8_t buf[3000]; - uint8_t * bufPtr = buf; - memset(buf, 0x00, 3000); + uint8_t *buf = NULL; + uint16_t bufsize = 0; + uint8_t *bufPtr = NULL; - if (param_getchar(Cmd, 0) == 'h') { + char ctmp = param_getchar(Cmd, 0); + if ( ctmp == 'h' || ctmp == 'H' ) { PrintAndLog("It continuously gets data from the field and saves it to: log, emulator, emulator file."); PrintAndLog("You can specify:"); PrintAndLog(" l - save encrypted sequence to logfile `uid.log`"); @@ -1979,7 +2059,7 @@ int CmdHF14AMfSniff(const char *Cmd){ } for (int i = 0; i < 4; i++) { - char ctmp = param_getchar(Cmd, i); + ctmp = param_getchar(Cmd, i); if (ctmp == 'l' || ctmp == 'L') wantLogToFile = true; if (ctmp == 'd' || ctmp == 'D') wantDecrypt = true; //if (ctmp == 'e' || ctmp == 'E') wantSaveToEml = true; TODO @@ -2006,32 +2086,50 @@ int CmdHF14AMfSniff(const char *Cmd){ break; } - UsbCommand resp; - if (WaitForResponseTimeout(CMD_ACK,&resp,2000)) { + UsbCommand resp; + if (WaitForResponseTimeout(CMD_ACK,&resp,2000)) { res = resp.arg[0] & 0xff; - len = resp.arg[1]; - num = resp.arg[2]; - - if (res == 0) return 0; - if (res == 1) { - if (num ==0) { + uint16_t traceLen = resp.arg[1]; + len = resp.arg[2]; + + if (res == 0) { // we are done + free(buf); + return 0; + } + + if (res == 1) { // there is (more) data to be transferred + if (pckNum == 0) { // first packet, (re)allocate necessary buffer + if (traceLen > bufsize || buf == NULL) { + uint8_t *p; + if (buf == NULL) { // not yet allocated + p = malloc(traceLen); + } else { // need more memory + p = realloc(buf, traceLen); + } + if (p == NULL) { + PrintAndLog("Cannot allocate memory for trace"); + free(buf); + return 2; + } + buf = p; + } bufPtr = buf; - memset(buf, 0x00, 3000); + bufsize = traceLen; + memset(buf, 0x00, traceLen); } memcpy(bufPtr, resp.d.asBytes, len); bufPtr += len; pckNum++; } - if (res == 2) { + + if (res == 2) { // received all data, start displaying blockLen = bufPtr - buf; bufPtr = buf; printf(">\n"); PrintAndLog("received trace len: %d packages: %d", blockLen, pckNum); - num = 0; while (bufPtr - buf < blockLen) { - bufPtr += 6; + bufPtr += 6; // skip (void) timing information len = *((uint16_t *)bufPtr); - if(len & 0x8000) { isTag = true; len &= 0x7fff; @@ -2040,12 +2138,10 @@ int CmdHF14AMfSniff(const char *Cmd){ } bufPtr += 2; if ((len == 14) && (bufPtr[0] == 0xff) && (bufPtr[1] == 0xff) && (bufPtr[12] == 0xff) && (bufPtr[13] == 0xff)) { - memcpy(uid, bufPtr + 2, 7); memcpy(atqa, bufPtr + 2 + 7, 2); uid_len = (atqa[0] & 0xC0) == 0x40 ? 7 : 4; sak = bufPtr[11]; - PrintAndLog("tag select uid:%s atqa:0x%02x%02x sak:0x%02x", sprint_hex(uid + (7 - uid_len), uid_len), atqa[1], @@ -2063,26 +2159,33 @@ int CmdHF14AMfSniff(const char *Cmd){ AddLogHex(logHexFileName, isTag ? "TAG: ":"RDR: ", bufPtr, len); if (wantDecrypt) mfTraceDecode(bufPtr, len, wantSaveToEmlFile); + num++; } bufPtr += len; bufPtr += ((len-1)/8+1); // ignore parity - num++; } + pckNum = 0; } } // resp not NULL } // while (true) - + + free(buf); return 0; } +//needs nt, ar, at, Data to decrypt +int CmdDecryptTraceCmds(const char *Cmd){ + uint8_t data[50]; + int len = 0; + param_gethex_ex(Cmd,3,data,&len); + return tryDecryptWord(param_get32ex(Cmd,0,0,16),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16),data,len/2); +} + static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, {"dbg", CmdHF14AMfDbg, 0, "Set default debug mode"}, {"rdbl", CmdHF14AMfRdBl, 0, "Read MIFARE classic block"}, - {"urdbl", CmdHF14AMfURdBl, 0, "Read MIFARE Ultralight block"}, - {"urdcard", CmdHF14AMfURdCard, 0,"Read MIFARE Ultralight Card"}, - {"uwrbl", CmdHF14AMfUWrBl, 0,"Write MIFARE Ultralight block"}, {"rdsc", CmdHF14AMfRdSc, 0, "Read MIFARE classic sector"}, {"dump", CmdHF14AMfDump, 0, "Dump MIFARE classic tag to binary file"}, {"restore", CmdHF14AMfRestore, 0, "Restore MIFARE classic binary file to BLANK tag"}, @@ -2105,6 +2208,7 @@ static command_t CommandTable[] = {"cgetsc", CmdHF14AMfCGetSc, 0, "Read sector - Magic Chinese card"}, {"cload", CmdHF14AMfCLoad, 0, "Load dump into magic Chinese card"}, {"csave", CmdHF14AMfCSave, 0, "Save dump from magic Chinese card into file or emulator"}, + {"decrypt", CmdDecryptTraceCmds,1, "[nt] [ar_enc] [at_enc] [data] - to decrypt snoop or trace"}, {NULL, NULL, 0, NULL} };