X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e68862947566842c673c005dc3f94aff9c830cfc..59d86bafb73b420c7c26131626c48243488a4f2b:/armsrc/mifarecmd.c?ds=sidebyside diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c index 344b0f3e..6f57c113 100644 --- a/armsrc/mifarecmd.c +++ b/armsrc/mifarecmd.c @@ -2,6 +2,9 @@ // Merlok - June 2011, 2012 // Gerhard de Koning Gans - May 2008 // Hagen Fritsch - June 2010 +// Midnitesnake - Dec 2013 +// Andy Davies - Apr 2014 +// Iceman - May 2014 // // 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 @@ -11,7 +14,20 @@ //----------------------------------------------------------------------------- #include "mifarecmd.h" + #include "apps.h" +#include "util.h" +#include "parity.h" +#include "crc.h" + +#define AUTHENTICATION_TIMEOUT 848 // card times out 1ms after wrong authentication (according to NXP documentation) +#define PRE_AUTHENTICATION_LEADTIME 400 // some (non standard) cards need a pause after select before they are ready for first authentication + + +// the block number for the ISO14443-4 PCB +static uint8_t pcb_blocknum = 0; +// Deselect card by sending a s-block. the crc is precalced for speed +static uint8_t deselect_cmd[] = {0xc2,0xe0,0xb4}; //----------------------------------------------------------------------------- // Select, Authenticate, Read a MIFARE tag. @@ -34,18 +50,16 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) struct Crypto1State *pcs; pcs = &mpcs; - // clear trace - iso14a_clear_trace(); -// iso14a_set_tracing(false); - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + LED_A_ON(); LED_B_OFF(); LED_C_OFF(); while (true) { - if(!iso14443a_select_card(uid, NULL, &cuid)) { + if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) { if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); break; }; @@ -78,65 +92,101 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16); LED_B_OFF(); - // Thats it... FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); -// iso14a_set_tracing(TRUE); +} + +void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){ + bool turnOffField = (arg0 == 1); + + LED_A_ON(); LED_B_OFF(); LED_C_OFF(); + + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + + clear_trace(); + + if(!iso14443a_select_card(NULL, NULL, NULL, true, 0)) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card"); + OnError(0); + return; + }; + + if(!mifare_ultra_auth(keybytes)){ + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed"); + OnError(1); + return; + } + + if (turnOffField) { + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LEDsoff(); + } + cmd_send(CMD_ACK,1,0,0,0,0); } -void MifareUReadBlock(uint8_t arg0,uint8_t *datain) +// Arg0 = BlockNo, +// Arg1 = UsePwd bool +// datain = PWD bytes, +void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain) { - // params uint8_t blockNo = arg0; - - // variables - byte_t isOK = 0; - byte_t dataoutbuf[16]; - uint8_t uid[10]; - uint32_t cuid; - - // clear trace - iso14a_clear_trace(); - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - + byte_t dataout[16] = {0x00}; + bool useKey = (arg1 == 1); //UL_C + bool usePwd = (arg1 == 2); //UL_EV1/NTAG + + LEDsoff(); LED_A_ON(); - LED_B_OFF(); - LED_C_OFF(); - - while (true) { - if(!iso14443a_select_card(uid, NULL, &cuid)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); - break; - }; - - if(mifare_ultra_readblock(cuid, blockNo, dataoutbuf)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Read block error"); - break; - }; - - if(mifare_ultra_halt(cuid)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Halt error"); - break; - }; - - isOK = 1; - break; + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + + clear_trace(); + + int len = iso14443a_select_card(NULL, NULL, NULL, true, 0); + if(!len) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len); + OnError(1); + return; } - - if (MF_DBGLEVEL >= 2) DbpString("READ BLOCK FINISHED"); - - LED_B_ON(); - cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16); - LED_B_OFF(); - - - // Thats it... + + // UL-C authentication + if ( useKey ) { + uint8_t key[16] = {0x00}; + memcpy(key, datain, sizeof(key) ); + + if ( !mifare_ultra_auth(key) ) { + OnError(1); + return; + } + } + + // UL-EV1 / NTAG authentication + if ( usePwd ) { + uint8_t pwd[4] = {0x00}; + memcpy(pwd, datain, 4); + uint8_t pack[4] = {0,0,0,0}; + if (!mifare_ul_ev1_auth(pwd, pack)) { + OnError(1); + return; + } + } + + if( mifare_ultra_readblock(blockNo, dataout) ) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error"); + OnError(2); + return; + } + + if( mifare_ultra_halt() ) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error"); + OnError(3); + return; + } + + cmd_send(CMD_ACK,1,0,0,dataout,16); FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); } - //----------------------------------------------------------------------------- // Select, Authenticate, Read a MIFARE tag. // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes) @@ -150,7 +200,7 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) ui64Key = bytes_to_num(datain, 6); // variables - byte_t isOK; + byte_t isOK = 0; byte_t dataoutbuf[16 * 16]; uint8_t uid[10]; uint32_t cuid; @@ -158,18 +208,16 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) struct Crypto1State *pcs; pcs = &mpcs; - // clear trace - iso14a_clear_trace(); -// iso14a_set_tracing(false); - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + LED_A_ON(); LED_B_OFF(); LED_C_OFF(); isOK = 1; - if(!iso14443a_select_card(uid, NULL, &cuid)) { + if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) { isOK = 0; if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); } @@ -192,7 +240,6 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) if (MF_DBGLEVEL >= 1) Dbprintf("Halt error"); } - // ----------------------------- crypto1 destroy crypto1_destroy(pcs); @@ -205,63 +252,104 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) // Thats it... FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); -// iso14a_set_tracing(TRUE); } - -void MifareUReadCard(uint8_t arg0, uint8_t *datain) +// arg0 = blockNo (start) +// arg1 = Pages (number of blocks) +// arg2 = useKey +// datain = KEY bytes +void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain) { - // params - uint8_t sectorNo = arg0; - - // variables - byte_t isOK = 0; - byte_t dataoutbuf[16 * 4]; - uint8_t uid[10]; - uint32_t cuid; - - // clear trace - iso14a_clear_trace(); -// iso14a_set_tracing(false); + LEDsoff(); + LED_A_ON(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + // free eventually allocated BigBuf memory + BigBuf_free(); + clear_trace(); + + // params + uint8_t blockNo = arg0; + uint16_t blocks = arg1; + bool useKey = (arg2 == 1); //UL_C + bool usePwd = (arg2 == 2); //UL_EV1/NTAG + uint32_t countblocks = 0; + uint8_t *dataout = BigBuf_malloc(CARD_MEMORY_SIZE); + if (dataout == NULL){ + Dbprintf("out of memory"); + OnError(1); + return; + } - LED_A_ON(); - LED_B_OFF(); - LED_C_OFF(); - - while (true) { - if(!iso14443a_select_card(uid, NULL, &cuid)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); - break; - }; - for(int sec=0;sec<16;sec++){ - if(mifare_ultra_readblock(cuid, sectorNo * 4 + sec, dataoutbuf + 4 * sec)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Read block %d error",sec); - break; - }; - } - if(mifare_ultra_halt(cuid)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Halt error"); - break; - }; - - isOK = 1; - break; - } - - if (MF_DBGLEVEL >= 2) DbpString("READ CARD FINISHED"); - - LED_B_ON(); - cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,64); - LED_B_OFF(); - - // Thats it... - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - LEDsoff(); + int len = iso14443a_select_card(NULL, NULL, NULL, true, 0); + if (!len) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len); + OnError(1); + return; + } -} + // UL-C authentication + if ( useKey ) { + uint8_t key[16] = {0x00}; + memcpy(key, datain, sizeof(key) ); + + if ( !mifare_ultra_auth(key) ) { + OnError(1); + return; + } + } + // UL-EV1 / NTAG authentication + if (usePwd) { + uint8_t pwd[4] = {0x00}; + memcpy(pwd, datain, sizeof(pwd)); + uint8_t pack[4] = {0,0,0,0}; + + if (!mifare_ul_ev1_auth(pwd, pack)){ + OnError(1); + return; + } + } + + for (int i = 0; i < blocks; i++){ + if ((i*4) + 4 >= CARD_MEMORY_SIZE) { + Dbprintf("Data exceeds buffer!!"); + break; + } + + len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i); + + if (len) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i); + // if no blocks read - error out + if (i==0){ + OnError(2); + return; + } else { + //stop at last successful read block and return what we got + break; + } + } else { + countblocks++; + } + } + + len = mifare_ultra_halt(); + if (len) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error"); + OnError(3); + return; + } + + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Blocks read %d", countblocks); + + countblocks *= 4; + + cmd_send(CMD_ACK, 1, countblocks, BigBuf_max_traceLen(), 0, 0); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LEDsoff(); + BigBuf_free(); +} //----------------------------------------------------------------------------- // Select, Authenticate, Write a MIFARE tag. @@ -286,18 +374,16 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) struct Crypto1State *pcs; pcs = &mpcs; - // clear trace - iso14a_clear_trace(); -// iso14a_set_tracing(false); - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + LED_A_ON(); LED_B_OFF(); LED_C_OFF(); while (true) { - if(!iso14443a_select_card(uid, NULL, &cuid)) { + if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) { if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); break; }; @@ -334,132 +420,319 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) // Thats it... FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); -// iso14a_set_tracing(TRUE); - } - -void MifareUWriteBlock(uint8_t arg0, uint8_t *datain) +/* // Command not needed but left for future testing +void MifareUWriteBlockCompat(uint8_t arg0, uint8_t *datain) { - // params - uint8_t blockNo = arg0; - byte_t blockdata[16]; - - memset(blockdata,'\0',16); - memcpy(blockdata, datain,16); - - // variables - byte_t isOK = 0; - uint8_t uid[10]; - uint32_t cuid; - - // clear trace - iso14a_clear_trace(); - // iso14a_set_tracing(false); + uint8_t blockNo = arg0; + byte_t blockdata[16] = {0x00}; - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + memcpy(blockdata, datain, 16); - LED_A_ON(); - LED_B_OFF(); - LED_C_OFF(); - - while (true) { - if(!iso14443a_select_card(uid, NULL, &cuid)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); - break; - }; - - if(mifare_ultra_writeblock(cuid, blockNo, blockdata)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); - break; - }; - - if(mifare_ultra_halt(cuid)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Halt error"); - break; - }; - - isOK = 1; - break; - } - - if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED"); - - LED_B_ON(); - cmd_send(CMD_ACK,isOK,0,0,0,0); - LED_B_OFF(); - - - // Thats it... - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - LEDsoff(); -// iso14a_set_tracing(TRUE); -} + uint8_t uid[10] = {0x00}; + LED_A_ON(); LED_B_OFF(); LED_C_OFF(); -void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain) -{ - // params - uint8_t blockNo = arg0; - byte_t blockdata[4]; - - memcpy(blockdata, datain,4); + clear_trace(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - // variables - byte_t isOK = 0; - uint8_t uid[10]; - uint32_t cuid; + if(!iso14443a_select_card(uid, NULL, NULL, true, 0)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); + OnError(0); + return; + }; - // clear trace - iso14a_clear_trace(); - // iso14a_set_tracing(false); + if(mifare_ultra_writeblock_compat(blockNo, blockdata)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); + OnError(0); + return; }; - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + if(mifare_ultra_halt()) { + if (MF_DBGLEVEL >= 1) Dbprintf("Halt error"); + OnError(0); + return; + }; + + if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED"); + cmd_send(CMD_ACK,1,0,0,0,0); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LEDsoff(); +} +*/ + +// Arg0 : Block to write to. +// Arg1 : 0 = use no authentication. +// 1 = use 0x1A authentication. +// 2 = use 0x1B authentication. +// datain : 4 first bytes is data to be written. +// : 4/16 next bytes is authentication key. +void MifareUWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain) +{ + uint8_t blockNo = arg0; + bool useKey = (arg1 == 1); //UL_C + bool usePwd = (arg1 == 2); //UL_EV1/NTAG + byte_t blockdata[4] = {0x00}; + + memcpy(blockdata, datain,4); + + LEDsoff(); LED_A_ON(); - LED_B_OFF(); - LED_C_OFF(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - while (true) { - if(!iso14443a_select_card(uid, NULL, &cuid)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); - break; - }; + clear_trace(); - if(mifare_ultra_special_writeblock(cuid, blockNo, blockdata)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); - break; - }; + if(!iso14443a_select_card(NULL, NULL, NULL, true, 0)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); + OnError(0); + return; + }; - if(mifare_ultra_halt(cuid)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Halt error"); - break; - }; + // UL-C authentication + if ( useKey ) { + uint8_t key[16] = {0x00}; + memcpy(key, datain+4, sizeof(key) ); - isOK = 1; - break; + if ( !mifare_ultra_auth(key) ) { + OnError(1); + return; + } + } + + // UL-EV1 / NTAG authentication + if (usePwd) { + uint8_t pwd[4] = {0x00}; + memcpy(pwd, datain+4, 4); + uint8_t pack[4] = {0,0,0,0}; + if (!mifare_ul_ev1_auth(pwd, pack)) { + OnError(1); + return; + } } - if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED"); + if(mifare_ultra_writeblock(blockNo, blockdata)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); + OnError(0); + return; + }; - LED_B_ON(); - cmd_send(CMD_ACK,isOK,0,0,0,0); - LED_B_OFF(); + if(mifare_ultra_halt()) { + if (MF_DBGLEVEL >= 1) Dbprintf("Halt error"); + OnError(0); + return; + }; + if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED"); - // Thats it... + cmd_send(CMD_ACK,1,0,0,0,0); FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); -// iso14a_set_tracing(TRUE); - } +void MifareUSetPwd(uint8_t arg0, uint8_t *datain){ + + uint8_t pwd[16] = {0x00}; + byte_t blockdata[4] = {0x00}; + + memcpy(pwd, datain, 16); + + LED_A_ON(); LED_B_OFF(); LED_C_OFF(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + + clear_trace(); + + if(!iso14443a_select_card(NULL, NULL, NULL, true, 0)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); + OnError(0); + return; + }; + + blockdata[0] = pwd[7]; + blockdata[1] = pwd[6]; + blockdata[2] = pwd[5]; + blockdata[3] = pwd[4]; + if(mifare_ultra_writeblock( 44, blockdata)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); + OnError(44); + return; + }; + + blockdata[0] = pwd[3]; + blockdata[1] = pwd[2]; + blockdata[2] = pwd[1]; + blockdata[3] = pwd[0]; + if(mifare_ultra_writeblock( 45, blockdata)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); + OnError(45); + return; + }; + + blockdata[0] = pwd[15]; + blockdata[1] = pwd[14]; + blockdata[2] = pwd[13]; + blockdata[3] = pwd[12]; + if(mifare_ultra_writeblock( 46, blockdata)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); + OnError(46); + return; + }; + + blockdata[0] = pwd[11]; + blockdata[1] = pwd[10]; + blockdata[2] = pwd[9]; + blockdata[3] = pwd[8]; + if(mifare_ultra_writeblock( 47, blockdata)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Write block error"); + OnError(47); + return; + }; + + if(mifare_ultra_halt()) { + if (MF_DBGLEVEL >= 1) Dbprintf("Halt error"); + OnError(0); + return; + }; + + cmd_send(CMD_ACK,1,0,0,0,0); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LEDsoff(); +} // Return 1 if the nonce is invalid else return 0 int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) { - return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \ - (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \ - (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0; + return ((oddparity8((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity8((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \ + (oddparity8((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity8((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \ + (oddparity8((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity8((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0; +} + + +//----------------------------------------------------------------------------- +// acquire encrypted nonces in order to perform the attack described in +// Carlo Meijer, Roel Verdult, "Ciphertext-only Cryptanalysis on Hardened +// Mifare Classic Cards" in Proceedings of the 22nd ACM SIGSAC Conference on +// Computer and Communications Security, 2015 +//----------------------------------------------------------------------------- +void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags, uint8_t *datain) +{ + uint64_t ui64Key = 0; + uint8_t uid[10]; + uint32_t cuid; + uint8_t cascade_levels = 0; + struct Crypto1State mpcs = {0, 0}; + struct Crypto1State *pcs; + pcs = &mpcs; + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; + int16_t isOK = 0; + uint8_t par_enc[1]; + uint8_t nt_par_enc = 0; + uint8_t buf[USB_CMD_DATA_SIZE]; + uint32_t timeout; + + uint8_t blockNo = arg0 & 0xff; + uint8_t keyType = (arg0 >> 8) & 0xff; + uint8_t targetBlockNo = arg1 & 0xff; + uint8_t targetKeyType = (arg1 >> 8) & 0xff; + ui64Key = bytes_to_num(datain, 6); + bool initialize = flags & 0x0001; + bool slow = flags & 0x0002; + bool field_off = flags & 0x0004; + + LED_A_ON(); + LED_C_OFF(); + + if (initialize) { + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + set_tracing(true); + } + + LED_C_ON(); + + uint16_t num_nonces = 0; + bool have_uid = false; + for (uint16_t i = 0; i <= USB_CMD_DATA_SIZE - 9; ) { + + // Test if the action was cancelled + if(BUTTON_PRESS()) { + isOK = 2; + field_off = true; + break; + } + + if (!have_uid) { // need a full select cycle to get the uid first + iso14a_card_select_t card_info; + if(!iso14443a_select_card(uid, &card_info, &cuid, true, 0)) { + if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Can't select card (ALL)"); + continue; + } + switch (card_info.uidlen) { + case 4 : cascade_levels = 1; break; + case 7 : cascade_levels = 2; break; + case 10: cascade_levels = 3; break; + default: break; + } + have_uid = true; + } else { // no need for anticollision. We can directly select the card + if(!iso14443a_select_card(uid, NULL, NULL, false, cascade_levels)) { + if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Can't select card (UID)"); + continue; + } + } + + if (slow) { + timeout = GetCountSspClk() + PRE_AUTHENTICATION_LEADTIME; + while(GetCountSspClk() < timeout); + } + + uint32_t nt1; + if (mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, NULL)) { + if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Auth1 error"); + continue; + } + + // nested authentication + uint16_t len = mifare_sendcmd_short(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par_enc, NULL); + if (len != 4) { + if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Auth2 error len=%d", len); + continue; + } + + // send a dummy byte as reader response in order to trigger the cards authentication timeout + uint8_t dummy_answer = 0; + ReaderTransmit(&dummy_answer, 1, NULL); + timeout = GetCountSspClk() + AUTHENTICATION_TIMEOUT; + + num_nonces++; + if (num_nonces % 2) { + memcpy(buf+i, receivedAnswer, 4); + nt_par_enc = par_enc[0] & 0xf0; + } else { + nt_par_enc |= par_enc[0] >> 4; + memcpy(buf+i+4, receivedAnswer, 4); + memcpy(buf+i+8, &nt_par_enc, 1); + i += 9; + } + + // wait for the card to become ready again + while(GetCountSspClk() < timeout); + + } + + LED_C_OFF(); + + crypto1_destroy(pcs); + + LED_B_ON(); + cmd_send(CMD_ACK, isOK, cuid, num_nonces, buf, sizeof(buf)); + LED_B_OFF(); + + if (MF_DBGLEVEL >= 3) DbpString("AcquireEncryptedNonces finished"); + + if (field_off) { + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LEDsoff(); + } } @@ -492,24 +765,28 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat struct Crypto1State mpcs = {0, 0}; struct Crypto1State *pcs; pcs = &mpcs; - uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf(); + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; uint32_t auth1_time, auth2_time; static uint16_t delta_time; - // clear trace - iso14a_clear_trace(); - iso14a_set_tracing(false); - - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - LED_A_ON(); LED_C_OFF(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + // free eventually allocated BigBuf memory + BigBuf_free(); + if (calibrate) clear_trace(); + set_tracing(true); + // statistics on nonce distance + int16_t isOK = 0; + #define NESTED_MAX_TRIES 12 + uint16_t unsuccessfull_tries = 0; if (calibrate) { // for first call only. Otherwise reuse previous calibration LED_B_ON(); + WDT_HIT(); davg = dmax = 0; dmin = 2000; @@ -517,6 +794,12 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat for (rtr = 0; rtr < 17; rtr++) { + // Test if the action was cancelled + if(BUTTON_PRESS()) { + isOK = -2; + break; + } + // prepare next select. No need to power down the card. if(mifare_classic_halt(pcs, cuid)) { if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Halt error"); @@ -524,7 +807,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat continue; } - if(!iso14443a_select_card(uid, NULL, &cuid)) { + if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) { if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Can't select card"); rtr--; continue; @@ -564,14 +847,17 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat delta_time = auth2_time - auth1_time + 32; // allow some slack for proper timing } if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i); + } else { + unsuccessfull_tries++; + if (unsuccessfull_tries > NESTED_MAX_TRIES) { // card isn't vulnerable to nested attack (random numbers are not predictable) + isOK = -3; + } } } - - if (rtr <= 1) return; davg = (davg + (rtr - 1)/2) / (rtr - 1); - if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time); + if (MF_DBGLEVEL >= 3) Dbprintf("rtr=%d isOK=%d min=%d max=%d avg=%d, delta_time=%d", rtr, isOK, dmin, dmax, davg, delta_time); dmin = davg - 2; dmax = davg + 2; @@ -579,12 +865,12 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat LED_B_OFF(); } -// ------------------------------------------------------------------------------------------------- + // ------------------------------------------------------------------------------------------------- LED_C_ON(); // get crypted nonces for target sector - for(i=0; i < 2; i++) { // look for exactly two different nonces + for(i=0; i < 2 && !isOK; i++) { // look for exactly two different nonces target_nt[i] = 0; while(target_nt[i] == 0) { // continue until we have an unambiguous nonce @@ -595,7 +881,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat continue; } - if(!iso14443a_select_card(uid, NULL, &cuid)) { + if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) { if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Can't select card"); continue; }; @@ -608,7 +894,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat // nested authentication auth2_time = auth1_time + delta_time; - len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time); + len = mifare_sendcmd_short(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time); if (len != 4) { if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth2 error len=%d", len); continue; @@ -619,7 +905,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat // Parity validity check for (j = 0; j < 4; j++) { - par_array[j] = (oddparity(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01)); + par_array[j] = (oddparity8(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01)); } ncount = 0; @@ -662,29 +948,30 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat memcpy(buf+16, &target_ks[1], 4); LED_B_ON(); - cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf)); + cmd_send(CMD_ACK, isOK, 0, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf)); LED_B_OFF(); if (MF_DBGLEVEL >= 3) DbpString("NESTED FINISHED"); FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); - iso14a_set_tracing(TRUE); } //----------------------------------------------------------------------------- // MIFARE check keys. key count up to 85. // //----------------------------------------------------------------------------- -void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) +void MifareChkKeys(uint16_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) { - // params - uint8_t blockNo = arg0; - uint8_t keyType = arg1; + uint8_t blockNo = arg0 & 0xff; + uint8_t keyType = (arg0 >> 8) & 0xff; + bool clearTrace = arg1; uint8_t keyCount = arg2; uint64_t ui64Key = 0; - // variables + bool have_uid = false; + uint8_t cascade_levels = 0; + uint32_t timeout = 0; int i; byte_t isOK = 0; uint8_t uid[10]; @@ -697,43 +984,61 @@ void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) int OLD_MF_DBGLEVEL = MF_DBGLEVEL; MF_DBGLEVEL = MF_DBG_NONE; - // clear trace - iso14a_clear_trace(); - iso14a_set_tracing(TRUE); - - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - LED_A_ON(); LED_B_OFF(); LED_C_OFF(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + + if (clearTrace) clear_trace(); + set_tracing(true); for (i = 0; i < keyCount; i++) { - if(mifare_classic_halt(pcs, cuid)) { - if (MF_DBGLEVEL >= 1) Dbprintf("ChkKeys: Halt error"); +// if(mifare_classic_halt(pcs, cuid)) { +// if (MF_DBGLEVEL >= 1) Dbprintf("ChkKeys: Halt error"); +// } + + // Iceman: use piwi's faster nonce collecting part in hardnested. + if (!have_uid) { // need a full select cycle to get the uid first + iso14a_card_select_t card_info; + if(!iso14443a_select_card(uid, &card_info, &cuid, true, 0)) { + if (OLD_MF_DBGLEVEL >= 1) Dbprintf("ChkKeys: Can't select card"); + --i; // try same key once again + continue; + } + switch (card_info.uidlen) { + case 4 : cascade_levels = 1; break; + case 7 : cascade_levels = 2; break; + case 10: cascade_levels = 3; break; + default: break; + } + have_uid = true; + } else { // no need for anticollision. We can directly select the card + if(!iso14443a_select_card(uid, NULL, NULL, false, cascade_levels)) { + if (OLD_MF_DBGLEVEL >= 1) Dbprintf("ChkKeys: Can't select card (UID)"); + --i; // try same key once again + continue; + } } - if(!iso14443a_select_card(uid, NULL, &cuid)) { - if (OLD_MF_DBGLEVEL >= 1) Dbprintf("ChkKeys: Can't select card"); - break; - }; - ui64Key = bytes_to_num(datain + i * 6, 6); if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) { + uint8_t dummy_answer = 0; + ReaderTransmit(&dummy_answer, 1, NULL); + timeout = GetCountSspClk() + AUTHENTICATION_TIMEOUT; + + // wait for the card to become ready again + while(GetCountSspClk() < timeout); continue; - }; + } isOK = 1; break; } - // ----------------------------- crypto1 destroy - crypto1_destroy(pcs); - LED_B_ON(); cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6); LED_B_OFF(); - // Thats it... FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); @@ -750,32 +1055,34 @@ void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai Dbprintf("Debug level: %d", MF_DBGLEVEL); } - //----------------------------------------------------------------------------- // Work with emulator memory // +// Note: we call FpgaDownloadAndGo(FPGA_BITSTREAM_HF) here although FPGA is not +// involved in dealing with emulator memory. But if it is called later, it might +// destroy the Emulator Memory. //----------------------------------------------------------------------------- + void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){ + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); emlClearMem(); } - void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){ + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); emlSetMem(datain, arg0, arg1); // data, block num, blocks count } - void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){ - - byte_t buf[48]; + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); + byte_t buf[USB_CMD_DATA_SIZE]; emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4) LED_B_ON(); - cmd_send(CMD_ACK,arg0,arg1,0,buf,48); + cmd_send(CMD_ACK,arg0,arg1,0,buf,USB_CMD_DATA_SIZE); LED_B_OFF(); } - //----------------------------------------------------------------------------- // Load a card into the emulator memory // @@ -794,19 +1101,17 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai byte_t dataoutbuf2[16]; uint8_t uid[10]; - // clear trace - iso14a_clear_trace(); - iso14a_set_tracing(false); - - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - LED_A_ON(); LED_B_OFF(); LED_C_OFF(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + + clear_trace(); + set_tracing(false); bool isOK = true; - if(!iso14443a_select_card(uid, NULL, &cuid)) { + if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) { isOK = false; if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); } @@ -884,35 +1189,29 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai // variables byte_t isOK = 0; - uint8_t uid[10]; - uint8_t d_block[18]; + uint8_t uid[10] = {0x00}; + uint8_t d_block[18] = {0x00}; uint32_t cuid; - memset(uid, 0x00, 10); - uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf(); - uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE; + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE]; + // reset FPGA and LED if (workFlags & 0x08) { - // clear trace - iso14a_clear_trace(); - iso14a_set_tracing(TRUE); - - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - LED_A_ON(); LED_B_OFF(); LED_C_OFF(); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - SpinDelay(300); - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(100); - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD); + clear_trace(); + set_tracing(true); } while (true) { + // get UID from chip if (workFlags & 0x01) { - if(!iso14443a_select_card(uid, NULL, &cuid)) { + if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) { if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card"); break; }; @@ -988,7 +1287,6 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai LED_B_OFF(); if ((workFlags & 0x10) || (!isOK)) { - // Thats it... FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); } @@ -1002,6 +1300,7 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai // bit 2 - need HALT after sequence // bit 3 - need init FPGA and field before sequence // bit 4 - need reset FPGA and LED + // bit 5 - need to set datain instead of issuing USB reply (called via ARM for StandAloneMode14a) uint8_t workFlags = arg0; uint8_t blockNo = arg2; @@ -1011,28 +1310,20 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai // variables byte_t isOK = 0; - uint8_t data[18]; + uint8_t data[18] = {0x00}; uint32_t cuid = 0; - memset(data, 0x00, 18); - uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf(); - uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE; + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE]; if (workFlags & 0x08) { - // clear trace - iso14a_clear_trace(); - iso14a_set_tracing(TRUE); - - iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); - LED_A_ON(); LED_B_OFF(); LED_C_OFF(); - - SpinDelay(300); - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(100); - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD); + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + + clear_trace(); + set_tracing(true); } while (true) { @@ -1069,13 +1360,114 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai } LED_B_ON(); - cmd_send(CMD_ACK,isOK,0,0,data,18); + if (workFlags & 0x20) { + if (isOK) + memcpy(datain, data, 18); + } + else + cmd_send(CMD_ACK,isOK,0,0,data,18); LED_B_OFF(); if ((workFlags & 0x10) || (!isOK)) { - // Thats it... FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); } } +void MifareCIdent(){ + + // card commands + uint8_t wupC1[] = { 0x40 }; + uint8_t wupC2[] = { 0x43 }; + + // variables + byte_t isOK = 1; + + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE]; + + ReaderTransmitBitsPar(wupC1,7,0, NULL); + if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) { + isOK = 0; + }; + + ReaderTransmit(wupC2, sizeof(wupC2), NULL); + if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) { + isOK = 0; + }; + + if (mifare_classic_halt(NULL, 0)) { + isOK = 0; + }; + + cmd_send(CMD_ACK,isOK,0,0,0,0); +} + +// +// DESFIRE +// + +void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){ + + byte_t dataout[11] = {0x00}; + uint8_t uid[10] = {0x00}; + uint32_t cuid; + + iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN); + clear_trace(); + + int len = iso14443a_select_card(uid, NULL, &cuid, true, 0); + if(!len) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card"); + OnError(1); + return; + }; + + if(mifare_desfire_des_auth1(cuid, dataout)){ + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail."); + OnError(4); + return; + } + + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED"); + cmd_send(CMD_ACK,1,cuid,0,dataout, sizeof(dataout)); +} + +void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){ + + uint32_t cuid = arg0; + uint8_t key[16] = {0x00}; + byte_t isOK = 0; + byte_t dataout[12] = {0x00}; + + memcpy(key, datain, 16); + + isOK = mifare_desfire_des_auth2(cuid, key, dataout); + + if( isOK) { + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed"); + OnError(4); + return; + } + + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 2 FINISHED"); + + cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout)); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LEDsoff(); +} + +void OnSuccess(){ + pcb_blocknum = 0; + ReaderTransmit(deselect_cmd, 3 , NULL); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LEDsoff(); +} + +void OnError(uint8_t reason){ + pcb_blocknum = 0; + ReaderTransmit(deselect_cmd, 3 , NULL); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + cmd_send(CMD_ACK,0,reason,0,0,0); + LEDsoff(); +}