X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/42f57e0294c13f14f8ebcdcc529b5872c2884786..33315928fb1daddcef528f4624f4c712e365ab8d:/client/cmdhficlass.c?ds=inline diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c index b8e1e098..6c92893a 100644 --- a/client/cmdhficlass.c +++ b/client/cmdhficlass.c @@ -1,6 +1,7 @@ //----------------------------------------------------------------------------- // Copyright (C) 2010 iZsh , Hagen Fritsch // Copyright (C) 2011 Gerhard de Koning Gans +// Copyright (C) 2014 Midnitesnake & Andy Davies & Martin Holst Swende // // This code is licensed to you under the terms of the GNU GPL, version 2 or, // at your option, any later version. See the LICENSE.txt file for the text of @@ -15,7 +16,6 @@ #include #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type #include "data.h" -//#include "proxusb.h" #include "proxmark3.h" #include "ui.h" #include "cmdparser.h" @@ -23,6 +23,12 @@ #include "common.h" #include "util.h" #include "cmdmain.h" +#include "loclass/des.h" +#include "loclass/cipherutils.h" +#include "loclass/cipher.h" +#include "loclass/ikeys.h" +#include "loclass/elite_crack.h" +#include "loclass/fileutils.h" static int CmdHelp(const char *Cmd); @@ -37,311 +43,57 @@ int xorbits_8(uint8_t val) int CmdHFiClassList(const char *Cmd) { + PrintAndLog("Deprecated command, use 'hf list iclass' instead"); + return 0; +} - bool ShowWaitCycles = false; - char param = param_getchar(Cmd, 0); - - if (param != 0) { - PrintAndLog("List data in trace buffer."); - PrintAndLog("Usage: hf iclass list"); - PrintAndLog("h - help"); - PrintAndLog("sample: hf iclass list"); +int CmdHFiClassSnoop(const char *Cmd) +{ + UsbCommand c = {CMD_SNOOP_ICLASS}; + SendCommand(&c); + return 0; +} +#define NUM_CSNS 15 +int CmdHFiClassSim(const char *Cmd) +{ + uint8_t simType = 0; + uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0}; + + if (strlen(Cmd)<1) { + PrintAndLog("Usage: hf iclass sim [0 ] | x"); + PrintAndLog(" options"); + PrintAndLog(" 0 simulate the given CSN"); + PrintAndLog(" 1 simulate default CSN"); + PrintAndLog(" 2 iterate CSNs, gather MACs"); + PrintAndLog(" sample: hf iclass sim 0 031FEC8AF7FF12E0"); + PrintAndLog(" sample: hf iclass sim 2"); return 0; } - uint8_t got[1920]; - GetFromBigBuf(got,sizeof(got),0); - WaitForResponse(CMD_ACK,NULL); - - PrintAndLog("Recorded Activity"); - PrintAndLog(""); - PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer"); - PrintAndLog("All times are in carrier periods (1/13.56Mhz)"); - PrintAndLog(""); - PrintAndLog(" Start | End | Src | Data"); - PrintAndLog("-----------|-----------|-----|--------"); + simType = param_get8(Cmd, 0); - int i; - uint32_t first_timestamp = 0; - uint32_t timestamp; - bool tagToReader; - uint32_t parityBits; - uint8_t len; - uint8_t *frame; - uint32_t EndOfTransmissionTimestamp = 0; - - - for( i=0; i < 1900;) + if(simType == 0) { - //First 32 bits contain - // isResponse (1 bit) - // timestamp (remaining) - //Then paritybits - //Then length - timestamp = *((uint32_t *)(got+i)); - parityBits = *((uint32_t *)(got+i+4)); - len = got[i+8]; - frame = (got+i+9); - uint32_t next_timestamp = (*((uint32_t *)(got+i+9))) & 0x7fffffff; - - tagToReader = timestamp & 0x80000000; - timestamp &= 0x7fffffff; - - if(i==0) { - first_timestamp = timestamp; - } - - // Break and stick with current result if buffer was not completely full - if (frame[0] == 0x44 && frame[1] == 0x44 && frame[2] == 0x44 && frame[3] == 0x44) break; - - char line[1000] = ""; - - if(len)//We have some data to display - { - int j,oddparity; - - for(j = 0; j < len ; j++) - { - oddparity = 0x01 ^ xorbits_8(frame[j] & 0xFF); - - if (tagToReader && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) { - sprintf(line+(j*4), "%02x! ", frame[j]); - } else { - sprintf(line+(j*4), "%02x ", frame[j]); - } - } - }else - { - if (ShowWaitCycles) { - sprintf(line, "fdt (Frame Delay Time): %d", (next_timestamp - timestamp)); - } + if (param_gethex(Cmd, 1, CSN, 16)) { + PrintAndLog("A CSN should consist of 16 HEX symbols"); + return 1; } + PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8)); - char *crc = ""; - - if(len > 2) - { - uint8_t b1, b2; - if(!tagToReader && len == 4) { - // Rough guess that this is a command from the reader - // For iClass the command byte is not part of the CRC - ComputeCrc14443(CRC_ICLASS, &frame[1], len-3, &b1, &b2); - } - else { - // For other data.. CRC might not be applicable (UPDATE commands etc.) - ComputeCrc14443(CRC_ICLASS, frame, len-2, &b1, &b2); - } - - if (b1 != frame[len-2] || b2 != frame[len-1]) { - crc = (tagToReader & (len < 8)) ? "" : " !crc"; - } - } - - i += (len + 9); - EndOfTransmissionTimestamp = (*((uint32_t *)(got+i))) & 0x7fffffff; - - // Not implemented for iclass on the ARM-side - //if (!ShowWaitCycles) i += 9; - - PrintAndLog(" %9d | %9d | %s | %s %s", - (timestamp - first_timestamp), - (EndOfTransmissionTimestamp - first_timestamp), - (len?(tagToReader ? "Tag" : "Rdr"):" "), - line, crc); - } - return 0; -} - -int CmdHFiClassListOld(const char *Cmd) -{ - uint8_t got[1920]; - GetFromBigBuf(got,sizeof(got),0); - - PrintAndLog("recorded activity:"); - PrintAndLog(" ETU :rssi: who bytes"); - PrintAndLog("---------+----+----+-----------"); - - int i = 0; - int prev = -1; - - for (;;) { - if(i >= 1900) { - break; - } - - bool isResponse; - int timestamp = *((uint32_t *)(got+i)); - if (timestamp & 0x80000000) { - timestamp &= 0x7fffffff; - isResponse = 1; - } else { - isResponse = 0; - } - - - int metric = 0; - - int parityBits = *((uint32_t *)(got+i+4)); - // 4 bytes of additional information... - // maximum of 32 additional parity bit information - // - // TODO: - // at each quarter bit period we can send power level (16 levels) - // or each half bit period in 256 levels. - - - int len = got[i+8]; - - if (len > 100) { - break; - } - if (i + len >= 1900) { - break; - } - - uint8_t *frame = (got+i+9); - - // Break and stick with current result if buffer was not completely full - if (frame[0] == 0x44 && frame[1] == 0x44 && frame[3] == 0x44) { break; } - - char line[1000] = ""; - int j; - for (j = 0; j < len; j++) { - int oddparity = 0x01; - int k; - - for (k=0;k<8;k++) { - oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01); - } - - //if((parityBits >> (len - j - 1)) & 0x01) { - if (isResponse && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) { - sprintf(line+(j*4), "%02x! ", frame[j]); - } - else { - sprintf(line+(j*4), "%02x ", frame[j]); - } - } - - char *crc; - crc = ""; - if (len > 2) { - uint8_t b1, b2; - for (j = 0; j < (len - 1); j++) { - // gives problems... search for the reason.. - /*if(frame[j] == 0xAA) { - switch(frame[j+1]) { - case 0x01: - crc = "[1] Two drops close after each other"; - break; - case 0x02: - crc = "[2] Potential SOC with a drop in second half of bitperiod"; - break; - case 0x03: - crc = "[3] Segment Z after segment X is not possible"; - break; - case 0x04: - crc = "[4] Parity bit of a fully received byte was wrong"; - break; - default: - crc = "[?] Unknown error"; - break; - } - break; - }*/ - } - - if (strlen(crc)==0) { - if(!isResponse && len == 4) { - // Rough guess that this is a command from the reader - // For iClass the command byte is not part of the CRC - ComputeCrc14443(CRC_ICLASS, &frame[1], len-3, &b1, &b2); } - else { - // For other data.. CRC might not be applicable (UPDATE commands etc.) - ComputeCrc14443(CRC_ICLASS, frame, len-2, &b1, &b2); + if(simType > 2) + { + PrintAndLog("Undefined simptype %d", simType); + return 1; } - //printf("%1x %1x",(unsigned)b1,(unsigned)b2); - if (b1 != frame[len-2] || b2 != frame[len-1]) { - crc = (isResponse & (len < 8)) ? "" : " !crc"; - } else { - crc = ""; - } - } - } else { - crc = ""; // SHORT - } - - char metricString[100]; - if (isResponse) { - sprintf(metricString, "%3d", metric); - } else { - strcpy(metricString, " "); - } - - PrintAndLog(" +%7d: %s: %s %s %s", - (prev < 0 ? 0 : (timestamp - prev)), - metricString, - (isResponse ? "TAG" : " "), line, crc); - - prev = timestamp; - i += (len + 9); - } - return 0; -} - -/*void iso14a_set_timeout(uint32_t timeout) { - UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}}; - SendCommand(&c); -}*/ - -int CmdHFiClassSnoop(const char *Cmd) -{ - UsbCommand c = {CMD_SNOOP_ICLASS}; - SendCommand(&c); - return 0; -} - -int CmdHFiClassSim(const char *Cmd) -{ - uint8_t simType = 0; - uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0}; - - if (strlen(Cmd)<1) { - PrintAndLog("Usage: hf iclass sim [0 ] | x"); - PrintAndLog(" options"); - PrintAndLog(" 0 simulate the given CSN"); - PrintAndLog(" 1 simulate default CSN"); - PrintAndLog(" 2 iterate CSNs, gather MACs"); - PrintAndLog(" sample: hf iclass sim 0 031FEC8AF7FF12E0"); - PrintAndLog(" sample: hf iclass sim 2"); - return 0; - } - - simType = param_get8(Cmd, 0); - - if(simType == 0) - { - if (param_gethex(Cmd, 1, CSN, 16)) { - PrintAndLog("A CSN should consist of 16 HEX symbols"); - return 1; - } - PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8)); - - } - if(simType > 2) - { - PrintAndLog("Undefined simptype %d", simType); - return 1; - } - uint8_t numberOfCSNs=0; + uint8_t numberOfCSNs=0; if(simType == 2) { - UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,63}}; + UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,NUM_CSNS}}; UsbCommand resp = {0}; - uint8_t csns[64] = { + /*uint8_t csns[8 * NUM_CSNS] = { 0x00,0x0B,0x0F,0xFF,0xF7,0xFF,0x12,0xE0 , 0x00,0x13,0x94,0x7e,0x76,0xff,0x12,0xe0 , 0x2a,0x99,0xac,0x79,0xec,0xff,0x12,0xe0 , @@ -350,8 +102,26 @@ int CmdHFiClassSim(const char *Cmd) 0x4b,0x5e,0x0b,0x72,0xef,0xff,0x12,0xe0 , 0x00,0x73,0xd8,0x75,0x58,0xff,0x12,0xe0 , 0x0c,0x90,0x32,0xf3,0x5d,0xff,0x12,0xe0 }; - - memcpy(c.d.asBytes, csns, 64); +*/ + + uint8_t csns[8*NUM_CSNS] = { + 0x00, 0x0B, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x04, 0x0E, 0x08, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x09, 0x0D, 0x05, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x0A, 0x0C, 0x06, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x0F, 0x0B, 0x03, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x08, 0x0A, 0x0C, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x0D, 0x09, 0x09, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x0E, 0x08, 0x0A, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x03, 0x07, 0x17, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x3C, 0x06, 0xE0, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x01, 0x05, 0x1D, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x02, 0x04, 0x1E, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x07, 0x03, 0x1B, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x00, 0x02, 0x24, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x05, 0x01, 0x21, 0xF7, 0xFF, 0x12, 0xE0 }; + + memcpy(c.d.asBytes, csns, 8*NUM_CSNS); SendCommand(&c); if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) { @@ -360,9 +130,9 @@ int CmdHFiClassSim(const char *Cmd) } uint8_t num_mac_responses = resp.arg[1]; - PrintAndLog("Mac responses: %d MACs obtained (should be 8)", num_mac_responses); + PrintAndLog("Mac responses: %d MACs obtained (should be %d)", num_mac_responses,NUM_CSNS); - size_t datalen = 8*24; + size_t datalen = NUM_CSNS*24; /* * Now, time to dump to file. We'll use this format: * <8-byte CSN><8-byte CC><4 byte NR><4 byte MAC>.... @@ -376,7 +146,7 @@ int CmdHFiClassSim(const char *Cmd) void* dump = malloc(datalen); memset(dump,0,datalen);//<-- Need zeroes for the CC-field uint8_t i = 0; - for(i = 0 ; i < 8 ; i++) + for(i = 0 ; i < NUM_CSNS ; i++) { memcpy(dump+i*24, csns+i*8,8); //CSN //8 zero bytes here... @@ -393,105 +163,440 @@ int CmdHFiClassSim(const char *Cmd) memcpy(c.d.asBytes, CSN, 8); SendCommand(&c); } - return 0; + + return 0; } int CmdHFiClassReader(const char *Cmd) { - uint8_t readerType = 0; + UsbCommand c = {CMD_READER_ICLASS, {0}}; + SendCommand(&c); + UsbCommand resp; + while(!ukbhit()){ + if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) { + uint8_t isOK = resp.arg[0] & 0xff; + uint8_t * data = resp.d.asBytes; + + PrintAndLog("isOk:%02x", isOK); + if( isOK == 0){ + //Aborted + PrintAndLog("Quitting..."); + return 0; + } + if(isOK > 0) + { + PrintAndLog("CSN: %s",sprint_hex(data,8)); + } + if(isOK >= 1) + { + PrintAndLog("CC: %s",sprint_hex(data+8,8)); + }else{ + PrintAndLog("No CC obtained"); + } + } else { + PrintAndLog("Command execute timeout"); + } + } - if (strlen(Cmd)<1) { - PrintAndLog("Usage: hf iclass reader "); - PrintAndLog(" sample: hf iclass reader 0"); return 0; - } +} + +int CmdHFiClassReader_Replay(const char *Cmd) +{ + uint8_t readerType = 0; + uint8_t MAC[4]={0x00, 0x00, 0x00, 0x00}; - readerType = param_get8(Cmd, 0); - PrintAndLog("--readertype:%02x", readerType); + if (strlen(Cmd)<1) { + PrintAndLog("Usage: hf iclass replay "); + PrintAndLog(" sample: hf iclass replay 00112233"); + return 0; + } - UsbCommand c = {CMD_READER_ICLASS, {readerType}}; - //memcpy(c.d.asBytes, CSN, 8); - SendCommand(&c); + if (param_gethex(Cmd, 0, MAC, 8)) { + PrintAndLog("MAC must include 8 HEX symbols"); + return 1; + } - /*UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500); - if (resp != NULL) { - uint8_t isOK = resp->arg[0] & 0xff; - PrintAndLog("isOk:%02x", isOK); - } else { - PrintAndLog("Command execute timeout"); - }*/ + UsbCommand c = {CMD_READER_ICLASS_REPLAY, {readerType}}; + memcpy(c.d.asBytes, MAC, 4); + SendCommand(&c); - return 0; + return 0; } -static command_t CommandTable[] = +int CmdHFiClassReader_Dump(const char *Cmd) { - {"help", CmdHelp, 1, "This help"}, - {"list", CmdHFiClassList, 0, "List iClass history"}, - {"snoop", CmdHFiClassSnoop, 0, "Eavesdrop iClass communication"}, - {"sim", CmdHFiClassSim, 0, "Simulate iClass tag"}, - {"reader", CmdHFiClassReader, 0, "Read an iClass tag"}, - {NULL, NULL, 0, NULL} -}; + uint8_t readerType = 0; + uint8_t MAC[4]={0x00,0x00,0x00,0x00}; + uint8_t 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 CC_temp[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; + uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; + uint8_t keytable[128] = {0}; + int elite = 0; + uint8_t *used_key; + int i; + if (strlen(Cmd)<1) + { + PrintAndLog("Usage: hf iclass dump [e]"); + PrintAndLog(" Key - A 16 byte master key"); + PrintAndLog(" e - If 'e' is specified, the key is interpreted as the 16 byte"); + PrintAndLog(" Custom Key (KCus), which can be obtained via reader-attack"); + PrintAndLog(" See 'hf iclass sim 2'. This key should be on iclass-format"); + PrintAndLog(" sample: hf iclass dump 0011223344556677"); -int CmdHFiClass(const char *Cmd) -{ - CmdsParse(CommandTable, Cmd); - return 0; + + return 0; + } + + if (param_gethex(Cmd, 0, KEY, 16)) + { + PrintAndLog("KEY must include 16 HEX symbols"); + return 1; + } + + if (param_getchar(Cmd, 1) == 'e') + { + PrintAndLog("Elite switch on"); + elite = 1; + + //calc h2 + hash2(KEY, keytable); + printarr_human_readable("keytable", keytable, 128); + + } + + UsbCommand resp; + uint8_t key_sel[8] = {0}; + uint8_t key_sel_p[8] = { 0 }; + + UsbCommand c = {CMD_READER_ICLASS, {0}}; + c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE| FLAG_ICLASS_READER_GET_CC; + SendCommand(&c); + + + + if (!WaitForResponseTimeout(CMD_ACK,&resp,4500)) + { + PrintAndLog("Command execute timeout"); + return 0; + } + + uint8_t isOK = resp.arg[0] & 0xff; + uint8_t * data = resp.d.asBytes; + + memcpy(CSN,data,8); + memcpy(CCNR,data+8,8); + + PrintAndLog("isOk:%02x", isOK); + + if(isOK > 0) + { + PrintAndLog("CSN: %s",sprint_hex(CSN,8)); + } + if(isOK <= 1){ + PrintAndLog("Failed to obtain CC! Aborting"); + return 0; + } + //Status 2 or higher + + if(elite) + { + //Get the key index (hash1) + uint8_t key_index[8] = {0}; + + hash1(CSN, key_index); + printvar("hash1", key_index,8); + for(i = 0; i < 8 ; i++) + key_sel[i] = keytable[key_index[i]] & 0xFF; + PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:"); + printvar("k_sel", key_sel,8); + //Permute from iclass format to standard format + permutekey_rev(key_sel,key_sel_p); + used_key = key_sel_p; + }else{ + used_key = KEY; + } + + PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:"); + printvar("Used key",used_key,8); + diversifyKey(CSN,used_key, div_key); + PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):"); + printvar("Div key", div_key, 8); + printvar("CC_NR:",CCNR,12); + doMAC(CCNR,12,div_key, MAC); + printvar("MAC", MAC, 4); + + uint8_t iclass_data[32000] = {0}; + uint32_t iclass_datalen = 0; + uint32_t iclass_blocksFailed = 0;//Set to 1 if dump was incomplete + + UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}}; + memcpy(d.d.asBytes, MAC, 4); + clearCommandBuffer(); + SendCommand(&d); + PrintAndLog("Waiting for device to dump data. Press button on device and key on keyboard to abort..."); + while (true) { + printf("."); + if (ukbhit()) { + getchar(); + printf("\naborted via keyboard!\n"); + break; + } + if(WaitForResponseTimeout(CMD_ACK,&resp,4500)) + { + uint32_t dataLength = resp.arg[0]; + iclass_blocksFailed |= resp.arg[1]; + if(dataLength > 0) + { + PrintAndLog("Got %d bytes data (total so far %d)" ,dataLength,iclass_datalen); + memcpy(iclass_data, resp.d.asBytes,dataLength); + iclass_datalen += dataLength; + }else + {//Last transfer, datalength 0 means the dump is finished + PrintAndLog("Dumped %d bytes of data from tag. ", iclass_datalen); + if(iclass_blocksFailed) + { + PrintAndLog("OBS! Some blocks failed to be dumped correctly!"); + } + if(iclass_datalen > 0) + { + char filename[100] = {0}; + //create a preferred filename + snprintf(filename, 100,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x", + CSN[0],CSN[1],CSN[2],CSN[3], + CSN[4],CSN[5],CSN[6],CSN[7]); + saveFile(filename,"bin",iclass_data, iclass_datalen ); + } + //Aaaand we're finished + return 0; + } + } + } + + + return 0; } -int CmdHelp(const char *Cmd) +int hf_iclass_eload_usage() { - CmdsHelp(CommandTable); - return 0; + PrintAndLog("Loads iclass tag-dump into emulator memory on device"); + PrintAndLog("Usage: hf iclass eload f "); + PrintAndLog(""); + PrintAndLog("Example: hf iclass eload f iclass_tagdump-aa162d30f8ff12f1.bin"); + return 0; + } -/** - * @brief checks if a file exists - * @param filename - * @return - */ -int fileExists(const char *filename) { - struct stat st; - int result = stat(filename, &st); - return result == 0; +int iclassEmlSetMem(uint8_t *data, int blockNum, int blocksCount) { + UsbCommand c = {CMD_MIFARE_EML_MEMSET, {blockNum, blocksCount, 0}}; + memcpy(c.d.asBytes, data, blocksCount * 16); + SendCommand(&c); + return 0; } -/** - * @brief Utility function to save data to a file. This method takes a preferred name, but if that - * file already exists, it tries with another name until it finds something suitable. - * E.g. dumpdata-15.txt - * @param preferredName - * @param suffix the file suffix. Leave out the ".". - * @param data The binary data to write to the file - * @param datalen the length of the data - * @return 0 for ok, 1 for failz - */ -int saveFile(const char *preferredName, const char *suffix, const void* data, size_t datalen) +int CmdHFiClassELoad(const char *Cmd) { - FILE *f = fopen(preferredName, "wb"); - int size = sizeof(char) * (strlen(preferredName)+strlen(suffix)+5); - char * fileName = malloc(size); - - memset(fileName,0,size); - int num = 1; - sprintf(fileName,"%s.%s", preferredName, suffix); - while(fileExists(fileName)) + + char opt = param_getchar(Cmd, 0); + if (strlen(Cmd)<1 || opt == 'h') + return hf_iclass_eload_usage(); + + //File handling and reading + FILE *f; + char filename[FILE_PATH_SIZE]; + if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0) { - sprintf(fileName,"%s-%d.%s", preferredName, num, suffix); - num++; + f = fopen(filename, "rb"); + }else{ + return hf_iclass_eload_usage(); } - /* We should have a valid filename now, e.g. dumpdata-3.bin */ - /*Opening file for writing in binary mode*/ - FILE *fileHandle=fopen(fileName,"wb"); if(!f) { - PrintAndLog("Failed to write to file '%s'", fileName); + 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); + + //Validate + + if (bytes_read < fsize) + { + prnlog("Error, could only read %d bytes (should be %d)",bytes_read, fsize ); + free(dump); + return 1; + } + //Send to device + uint32_t bytes_sent = 0; + uint32_t bytes_remaining = bytes_read; + + while(bytes_remaining > 0){ + uint32_t bytes_in_packet = MIN(USB_CMD_DATA_SIZE, bytes_remaining); + UsbCommand c = {CMD_ICLASS_EML_MEMSET, {bytes_sent,bytes_in_packet,0}}; + memcpy(c.d.asBytes, dump, bytes_in_packet); + SendCommand(&c); + bytes_remaining -= bytes_in_packet; + bytes_sent += bytes_in_packet; + } + free(dump); + PrintAndLog("Sent %d bytes of data to device emulator memory", bytes_sent); + return 0; +} + + +int CmdHFiClass_iso14443A_write(const char *Cmd) +{ + uint8_t readerType = 0; + uint8_t MAC[4]={0x00,0x00,0x00,0x00}; + uint8_t 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 div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; + + uint8_t blockNo=0; + uint8_t bldata[8]={0}; + + if (strlen(Cmd)<3) + { + PrintAndLog("Usage: hf iclass write "); + PrintAndLog(" sample: hf iclass write 0011223344556677 10 AAAAAAAAAAAAAAAA"); return 0; } - fwrite(data, 1, datalen, fileHandle); - fclose(fileHandle); - PrintAndLog("Saved data to '%s'", fileName); - free(fileName); + if (param_gethex(Cmd, 0, KEY, 16)) + { + PrintAndLog("KEY must include 16 HEX symbols"); + return 1; + } + + blockNo = param_get8(Cmd, 1); + if (blockNo>32) + { + PrintAndLog("Error: Maximum number of blocks is 32 for iClass 2K Cards!"); + return 1; + } + if (param_gethex(Cmd, 2, bldata, 8)) + { + PrintAndLog("Block data must include 8 HEX symbols"); + return 1; + } + + UsbCommand c = {CMD_ICLASS_ISO14443A_WRITE, {0}}; + SendCommand(&c); + UsbCommand resp; + + if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) { + uint8_t isOK = resp.arg[0] & 0xff; + uint8_t * data = resp.d.asBytes; + + memcpy(CSN,data,8); + memcpy(CCNR,data+8,8); + PrintAndLog("DEBUG: %s",sprint_hex(CSN,8)); + PrintAndLog("DEBUG: %s",sprint_hex(CCNR,8)); + PrintAndLog("isOk:%02x", isOK); + } else { + PrintAndLog("Command execute timeout"); + } + + diversifyKey(CSN,KEY, div_key); + + PrintAndLog("Div Key: %s",sprint_hex(div_key,8)); + doMAC(CCNR, 12,div_key, MAC); + + UsbCommand c2 = {CMD_ICLASS_ISO14443A_WRITE, {readerType,blockNo}}; + memcpy(c2.d.asBytes, bldata, 8); + memcpy(c2.d.asBytes+8, MAC, 4); + SendCommand(&c2); + + 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 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 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 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; +} + +static command_t CommandTable[] = +{ + {"help", CmdHelp, 1, "This help"}, + {"list", CmdHFiClassList, 0, "[Deprecated] List iClass history"}, + {"snoop", CmdHFiClassSnoop, 0, "Eavesdrop iClass communication"}, + {"sim", CmdHFiClassSim, 0, "Simulate iClass tag"}, + {"reader",CmdHFiClassReader, 0, "Read an iClass tag"}, + {"replay",CmdHFiClassReader_Replay, 0, "Read an iClass tag via Reply Attack"}, + {"dump", CmdHFiClassReader_Dump, 0, "Authenticate and Dump iClass tag"}, +// {"write", CmdHFiClass_iso14443A_write, 0, "Authenticate and Write iClass block"}, + {"loclass", CmdHFiClass_loclass, 1, "Use loclass to perform bruteforce of reader attack dump"}, + {"eload", CmdHFiClassELoad, 0, "[experimental] Load data into iclass emulator memory"}, + {NULL, NULL, 0, NULL} +}; + +int CmdHFiClass(const char *Cmd) +{ + CmdsParse(CommandTable, Cmd); + return 0; +} + +int CmdHelp(const char *Cmd) +{ + CmdsHelp(CommandTable); return 0; }