X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/2e656c39ebfd7e2471296ec96bcb1eee7b6b39f6..f028213f0e2073099dbfae86a43f6a43bdd9c495:/client/cmdhficlass.c?ds=sidebyside diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c index b8e1e098..21297b5e 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 // // 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 @@ -12,7 +13,6 @@ #include #include #include -#include #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type #include "data.h" //#include "proxusb.h" @@ -22,137 +22,14 @@ #include "cmdhficlass.h" #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" static int CmdHelp(const char *Cmd); -int xorbits_8(uint8_t val) -{ - uint8_t res = val ^ (val >> 1); //1st pass - res = res ^ (res >> 1); // 2nd pass - res = res ^ (res >> 2); // 3rd pass - res = res ^ (res >> 4); // 4th pass - return res & 1; -} - int CmdHFiClassList(const char *Cmd) -{ - - 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"); - 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("-----------|-----------|-----|--------"); - - 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;) - { - //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)); - } - } - - 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); @@ -178,9 +55,7 @@ int CmdHFiClassListOld(const char *Cmd) isResponse = 0; } - int metric = 0; - int parityBits = *((uint32_t *)(got+i+4)); // 4 bytes of additional information... // maximum of 32 additional parity bit information @@ -290,11 +165,6 @@ int CmdHFiClassListOld(const char *Cmd) 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}; @@ -307,92 +177,23 @@ 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"); + if (strlen(Cmd)<2) { + PrintAndLog("Usage: hf iclass sim "); PrintAndLog(" sample: hf iclass sim 0 031FEC8AF7FF12E0"); - PrintAndLog(" sample: hf iclass sim 2"); return 0; } simType = param_get8(Cmd, 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 == 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)); + UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType}}; + memcpy(c.d.asBytes, CSN, 8); + SendCommand(&c); - } - if(simType > 2) - { - PrintAndLog("Undefined simptype %d", simType); - return 1; - } - uint8_t numberOfCSNs=0; - - if(simType == 2) - { - UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,63}}; - UsbCommand resp = {0}; - - uint8_t csns[64] = { - 0x00,0x0B,0x0F,0xFF,0xF7,0xFF,0x12,0xE0 , - 0x00,0x13,0x94,0x7e,0x76,0xff,0x12,0xe0 , - 0x2a,0x99,0xac,0x79,0xec,0xff,0x12,0xe0 , - 0x17,0x12,0x01,0xfd,0xf7,0xff,0x12,0xe0 , - 0xcd,0x56,0x01,0x7c,0x6f,0xff,0x12,0xe0 , - 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); - - SendCommand(&c); - if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) { - PrintAndLog("Command timed out"); - return 0; - } - - uint8_t num_mac_responses = resp.arg[1]; - PrintAndLog("Mac responses: %d MACs obtained (should be 8)", num_mac_responses); - - size_t datalen = 8*24; - /* - * Now, time to dump to file. We'll use this format: - * <8-byte CSN><8-byte CC><4 byte NR><4 byte MAC>.... - * So, it should wind up as - * 8 * 24 bytes. - * - * The returndata from the pm3 is on the following format - * <4 byte NR><4 byte MAC> - * CC are all zeroes, CSN is the same as was sent in - **/ - void* dump = malloc(datalen); - memset(dump,0,datalen);//<-- Need zeroes for the CC-field - uint8_t i = 0; - for(i = 0 ; i < 8 ; i++) - { - memcpy(dump+i*24, csns+i*8,8); //CSN - //8 zero bytes here... - //Then comes NR_MAC (eight bytes from the response) - memcpy(dump+i*24+16,resp.d.asBytes+i*8,8); - - } - /** Now, save to dumpfile **/ - saveFile("iclass_mac_attack", "bin", dump,datalen); - free(dump); - }else - { - UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,numberOfCSNs}}; - memcpy(c.d.asBytes, CSN, 8); - SendCommand(&c); - } return 0; } @@ -410,27 +211,130 @@ int CmdHFiClassReader(const char *Cmd) PrintAndLog("--readertype:%02x", readerType); UsbCommand c = {CMD_READER_ICLASS, {readerType}}; - //memcpy(c.d.asBytes, CSN, 8); SendCommand(&c); - /*UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500); - if (resp != NULL) { - uint8_t isOK = resp->arg[0] & 0xff; + return 0; +} + +int CmdHFiClassReader_Replay(const char *Cmd) +{ + uint8_t readerType = 0; + uint8_t MAC[4]={0x00, 0x00, 0x00, 0x00}; + + if (strlen(Cmd)<1) { + PrintAndLog("Usage: hf iclass replay "); + PrintAndLog(" sample: hf iclass replay 00112233"); + return 0; + } + + if (param_gethex(Cmd, 0, MAC, 8)) { + PrintAndLog("MAC must include 8 HEX symbols"); + return 1; + } + + UsbCommand c = {CMD_READER_ICLASS_REPLAY, {readerType}}; + memcpy(c.d.asBytes, MAC, 4); + SendCommand(&c); + + return 0; +} + +int CmdHFiClassReader_Dump(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 CC_temp[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; + uint8_t result[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; + uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; + des_context ctx_enc; + uint64_t crypted_id=0; + + if (strlen(Cmd)<1) + { + //PrintAndLog("Usage: hf iclass dump "); + //PrintAndLog(" sample: hf iclass dump 0011223344556677 aabbccddeeffgghh FFFFFFFFFFFFFFFF"); + PrintAndLog("Usage: hf iclass dump "); + PrintAndLog(" sample: hf iclass dump 0011223344556677"); + return 0; + } + + if (param_gethex(Cmd, 0, KEY, 16)) + { + PrintAndLog("KEY must include 16 HEX symbols"); + return 1; + } + + /*if (param_gethex(Cmd, 1, CSN, 16)) + { + PrintAndLog("CSN must include 16 HEX symbols"); + return 1; + } + if (param_gethex(Cmd, 2, CC_temp, 16)) + { + PrintAndLog("CC must include 16 HEX symbols"); + return 1; + }*/ + + UsbCommand c = {CMD_ICLASS_ISO14443A_GETPUBLIC, {0}}; + //memcpy(c.d.asBytes, MAC, 4); + 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: CSN %s",sprint_hex(CSN,8)); + PrintAndLog("DEBUG: CC %s",sprint_hex(CCNR,8)); PrintAndLog("isOk:%02x", isOK); } else { PrintAndLog("Command execute timeout"); - }*/ + } + + //memcpy(CCNR,CC_temp,8); + des_setkey_enc( &ctx_enc, KEY); + des_crypt_ecb(&ctx_enc,CSN,result); + PrintAndLog("DES Key: %s",sprint_hex(result,8)); + uint64_t newz=0; + crypted_id = bytes_to_num(result,8); + uint64_t x = (crypted_id & 0xFFFF000000000000 ); + pushbackSixBitByte(&newz, getSixBitByte(crypted_id,0),7); + pushbackSixBitByte(&newz, getSixBitByte(crypted_id,1),6); + pushbackSixBitByte(&newz, getSixBitByte(crypted_id,2),5); + pushbackSixBitByte(&newz, getSixBitByte(crypted_id,3),4); + pushbackSixBitByte(&newz, getSixBitByte(crypted_id,4),3); + pushbackSixBitByte(&newz, getSixBitByte(crypted_id,5),2); + pushbackSixBitByte(&newz, getSixBitByte(crypted_id,6),1); + pushbackSixBitByte(&newz, getSixBitByte(crypted_id,7),0); + newz|= x; + crypted_id=newz; + num_to_bytes(crypted_id,8,result); + PrintAndLog("DESr Key: %s",sprint_hex(result,8)); + hash0(crypted_id,div_key); + PrintAndLog("Div Key: %s",sprint_hex(div_key,8)); + calc_iclass_mac(CCNR,12,div_key,MAC); + + UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}}; + memcpy(d.d.asBytes, MAC, 4); + SendCommand(&d); return 0; } static command_t CommandTable[] = { - {"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"}, + {"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"}, + {"replay", CmdHFiClassReader_Replay,0, "Read an iClass tag via Reply Attack"}, + {"dump", CmdHFiClassReader_Dump, 0, "Authenticate and Dump iClass tag"}, {NULL, NULL, 0, NULL} }; @@ -446,52 +350,3 @@ int CmdHelp(const char *Cmd) 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; -} -/** - * @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) -{ - 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)) - { - sprintf(fileName,"%s-%d.%s", preferredName, num, suffix); - num++; - } - /* 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); - return 0; - } - fwrite(data, 1, datalen, fileHandle); - fclose(fileHandle); - PrintAndLog("Saved data to '%s'", fileName); - - free(fileName); - return 0; -}