X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/fecd8202a5ad638db4c1ba088842390e78ef52db..e6ee6c4cd135c29fcd3812e0ceea8fe17497700d:/client/cmdhficlass.c diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c index e68fdc4f..7156b118 100644 --- a/client/cmdhficlass.c +++ b/client/cmdhficlass.c @@ -1,7 +1,7 @@ //----------------------------------------------------------------------------- // Copyright (C) 2010 iZsh , Hagen Fritsch // Copyright (C) 2011 Gerhard de Koning Gans -// Copyright (C) 2014 Midnitesnake & Andy Davies +// 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 @@ -13,6 +13,7 @@ #include #include #include +#include #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type #include "data.h" //#include "proxusb.h" @@ -22,14 +23,143 @@ #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" +#include "loclass/elite_crack.h" +#include "loclass/fileutils.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 idf 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); @@ -55,7 +185,9 @@ int CmdHFiClassList(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 @@ -177,41 +309,122 @@ int CmdHFiClassSim(const char *Cmd) uint8_t simType = 0; uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0}; - if (strlen(Cmd)<2) { - PrintAndLog("Usage: hf iclass sim "); + 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 (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 == 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; + + 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; } int CmdHFiClassReader(const char *Cmd) { - uint8_t readerType = 0; - - if (strlen(Cmd)<1) { - PrintAndLog("Usage: hf iclass reader "); - PrintAndLog(" sample: hf iclass reader 0"); - return 0; - } - - readerType = param_get8(Cmd, 0); - PrintAndLog("--readertype:%02x", readerType); - - UsbCommand c = {CMD_READER_ICLASS, {readerType}}; + 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) + { + 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"); + } + } return 0; } @@ -247,17 +460,21 @@ int CmdHFiClassReader_Dump(const char *Cmd) 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; - + uint8_t keytable[128] = {0}; + int elite = 0; + uint8_t *used_key; + int i; if (strlen(Cmd)<1) { - //PrintAndLog("Usage: hf iclass dump "); - //PrintAndLog(" sample: hf iclass dump 0011223344556677 aabbccddeeffgghh FFFFFFFFFFFFFFFF"); - PrintAndLog("Usage: hf iclass dump "); + 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"); + + return 0; } @@ -266,63 +483,85 @@ int CmdHFiClassReader_Dump(const char *Cmd) PrintAndLog("KEY must include 16 HEX symbols"); return 1; } - - /*if (param_gethex(Cmd, 1, CSN, 16)) + + if (param_getchar(Cmd, 1) == 'e') { - PrintAndLog("CSN must include 16 HEX symbols"); - return 1; + PrintAndLog("Elite switch on"); + elite = 1; + + //calc h2 + hash2(KEY, keytable); + printarr_human_readable("keytable", keytable, 128); + } - 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); + + + UsbCommand c = {CMD_READER_ICLASS, {0}}; + c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE; + 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"); - } - - - //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); + uint8_t isOK = resp.arg[0] & 0xff; + uint8_t * data = resp.d.asBytes; - UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}}; - memcpy(d.d.asBytes, MAC, 4); - SendCommand(&d); + 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) + { + if(elite) + { + uint8_t key_sel[8] = {0}; + uint8_t key_sel_p[8] = { 0 }; + //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; + 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{ + //Perhaps this should also be permuted to std format? + // Something like the code below? I have no std system + // to test this with /Martin + + //uint8_t key_sel_p[8] = { 0 }; + //permutekey_rev(KEY,key_sel_p); + //used_key = key_sel_p; + + used_key = KEY; + + } + printvar("Used key",used_key,8); + diversifyKey(CSN,used_key, div_key); + printvar("Div key", div_key, 8); + printvar("CC_NR:",CCNR,12); + doMAC(CCNR,12,div_key, MAC); + printvar("MAC", MAC, 4); + + UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}}; + memcpy(d.d.asBytes, MAC, 4); + SendCommand(&d); + + }else{ + PrintAndLog("Failed to obtain CC! Aborting"); + } + } else { + PrintAndLog("Command execute timeout"); + } return 0; } @@ -334,11 +573,8 @@ int CmdHFiClass_iso14443A_write(const char *Cmd) 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; + uint8_t blockNo=0; uint8_t bldata[8]={0}; @@ -367,11 +603,10 @@ int CmdHFiClass_iso14443A_write(const char *Cmd) return 1; } - UsbCommand c = {CMD_ICLASS_ISO14443A_GETPUBLIC, {0}}; - //memcpy(c.d.asBytes, MAC, 4); + 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; @@ -384,35 +619,17 @@ int CmdHFiClass_iso14443A_write(const char *Cmd) } else { PrintAndLog("Command execute timeout"); } - - 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); + + diversifyKey(CSN,KEY, div_key); + PrintAndLog("Div Key: %s",sprint_hex(div_key,8)); - calc_iclass_mac(CCNR,12,div_key,MAC); + doMAC(CCNR, 12,div_key, MAC); - UsbCommand c = {CMD_ICLASS_ISO14443A_WRITE, {readerType,blockNo}}; - memcpy(c.d.asBytes, bldata, 8); - memcpy(c.d.asBytes+8, MAC, 4); - SendCommand(&c); + UsbCommand c2 = {CMD_ICLASS_ISO14443A_WRITE, {readerType,blockNo}}; + memcpy(c2.d.asBytes, bldata, 8); + memcpy(c2.d.asBytes+8, MAC, 4); + SendCommand(&c2); - UsbCommand resp; if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) { uint8_t isOK = resp.arg[0] & 0xff; uint8_t * data = resp.d.asBytes;