From 6b23be6b7ecd1660922d53c8c1c0522f69389dc6 Mon Sep 17 00:00:00 2001 From: iceman1001 Date: Thu, 4 Aug 2016 21:37:43 +0200 Subject: [PATCH] CHG: cleaning up. --- armsrc/iso14443a.c | 169 +++++++++++----- armsrc/iso14443a.h | 13 +- armsrc/iso15693.c | 476 +++++++++++++-------------------------------- armsrc/mifarecmd.c | 1 - armsrc/mifarecmd.h | 2 - 5 files changed, 271 insertions(+), 390 deletions(-) diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c index 21f70c3e..f9dfebd9 100644 --- a/armsrc/iso14443a.c +++ b/armsrc/iso14443a.c @@ -9,19 +9,7 @@ //----------------------------------------------------------------------------- // Routines to support ISO 14443 type A. //----------------------------------------------------------------------------- - -#include "proxmark3.h" -#include "apps.h" -#include "util.h" -#include "string.h" -#include "cmd.h" -#include "iso14443crc.h" #include "iso14443a.h" -#include "iso14443b.h" -#include "crapto1.h" -#include "mifareutil.h" -#include "BigBuf.h" -#include "parity.h" static uint32_t iso14a_timeout; int rsamples = 0; @@ -861,11 +849,6 @@ bool prepare_allocated_tag_modulation(tag_response_info_t* response_info) { //----------------------------------------------------------------------------- void SimulateIso14443aTag(int tagType, int flags, byte_t* data) { - // Here, we collect CUID, block1, keytype1, NT1, NR1, AR1, CUID, block2, keytyp2, NT2, NR2, AR2 - // it should also collect block, keytype. - // This can be used in a reader-only attack. - uint32_t ar_nr_responses[] = {0,0,0,0,0,0,0,0,0,0}; - uint8_t ar_nr_collected = 0; uint8_t sak = 0; uint32_t cuid = 0; uint32_t nonce = 0; @@ -877,6 +860,24 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) { // The first response contains the ATQA (note: bytes are transmitted in reverse order). uint8_t response1[] = {0,0}; + + // Here, we collect CUID, block1, keytype1, NT1, NR1, AR1, CUID, block2, keytyp2, NT2, NR2, AR2 + // it should also collect block, keytype. + uint8_t cardAUTHSC = 0; + uint8_t cardAUTHKEY = 0xff; // no authentication + // allow collecting up to 8 sets of nonces to allow recovery of up to 8 keys + #define ATTACK_KEY_COUNT 8 // keep same as define in cmdhfmf.c -> readerAttack() + nonces_t ar_nr_resp[ATTACK_KEY_COUNT*2]; //*2 for 2 separate attack types (nml, moebius) + memset(ar_nr_resp, 0x00, sizeof(ar_nr_resp)); + + uint8_t ar_nr_collected[ATTACK_KEY_COUNT*2]; //*2 for 2nd attack type (moebius) + memset(ar_nr_collected, 0x00, sizeof(ar_nr_collected)); + uint8_t nonce1_count = 0; + uint8_t nonce2_count = 0; + uint8_t moebius_n_count = 0; + bool gettingMoebius = false; + uint8_t mM = 0; //moebius_modifier for collection storage + switch (tagType) { case 1: { // MIFARE Classic 1k @@ -1082,14 +1083,18 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) { if ( tagType == 7 || tagType == 2 ) { //first 12 blocks of emu are [getversion answer - check tearing - pack - 0x00 - signature] uint16_t start = 4 * (block+12); - uint8_t emdata[MAX_MIFARE_FRAME_SIZE]; - emlGetMemBt( emdata, start, 16); - AppendCrc14443a(emdata, 16); - EmSendCmdEx(emdata, sizeof(emdata), false); + uint8_t emdata[MAX_MIFARE_FRAME_SIZE]; + emlGetMemBt( emdata, start, 16); + AppendCrc14443a(emdata, 16); + EmSendCmdEx(emdata, sizeof(emdata), false); // We already responded, do not send anything with the EmSendCmd14443aRaw() that is called below p_response = NULL; } else { // all other tags (16 byte block tags) - EmSendCmdEx(data+(4*receivedCmd[1]),16,false); + uint8_t emdata[MAX_MIFARE_FRAME_SIZE]; + emlGetMemBt( emdata, block, 16); + AppendCrc14443a(emdata, 16); + EmSendCmdEx(emdata, sizeof(emdata), false); + //EmSendCmdEx(data+(4*receivedCmd[1]),16,false); // Dbprintf("Read request from reader: %x %x",receivedCmd[0],receivedCmd[1]); // We already responded, do not send anything with the EmSendCmd14443aRaw() that is called below p_response = NULL; @@ -1147,9 +1152,11 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) { uint8_t emdata[10]; emlGetMemBt( emdata, 0, 8 ); AppendCrc14443a(emdata, sizeof(emdata)-2); - EmSendCmdEx(emdata, sizeof(emdata), false); + EmSendCmdEx(emdata, sizeof(emdata), false); p_response = NULL; } else { + cardAUTHSC = receivedCmd[1] / 4; // received block num + cardAUTHKEY = receivedCmd[0] - 0x60; p_response = &responses[5]; order = 7; } } else if(receivedCmd[0] == ISO14443A_CMD_RATS) { // Received a RATS request @@ -1164,33 +1171,68 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) { uint32_t nr = bytes_to_num(receivedCmd,4); uint32_t ar = bytes_to_num(receivedCmd+4,4); + // Collect AR/NR per keytype & sector if ( (flags & FLAG_NR_AR_ATTACK) == FLAG_NR_AR_ATTACK ) { - if(ar_nr_collected < 2){ - ar_nr_responses[ar_nr_collected*4] = cuid; - ar_nr_responses[ar_nr_collected*4+1] = nonce; - ar_nr_responses[ar_nr_collected*4+2] = nr; - ar_nr_responses[ar_nr_collected*4+3] = ar; - ar_nr_collected++; - } - if(ar_nr_collected > 1 ) { - if (MF_DBGLEVEL >= 2 && !(flags & FLAG_INTERACTIVE)) { - Dbprintf("Collected two pairs of AR/NR which can be used to extract keys from reader:"); - Dbprintf("../tools/mfkey/mfkey32v2.exe %08x %08x %08x %08x %08x %08x %08x", - ar_nr_responses[0], // CUID - ar_nr_responses[1], // NT_1 - ar_nr_responses[2], // AR_1 - ar_nr_responses[3], // NR_1 - ar_nr_responses[5], // NT_2 - ar_nr_responses[6], // AR_2 - ar_nr_responses[7] // NR_2 - ); + for (uint8_t i = 0; i < ATTACK_KEY_COUNT; i++) { + if ( ar_nr_collected[i+mM]==0 || ((cardAUTHSC == ar_nr_resp[i+mM].sector) && (cardAUTHKEY == ar_nr_resp[i+mM].keytype) && (ar_nr_collected[i+mM] > 0)) ) { + // if first auth for sector, or matches sector and keytype of previous auth + if (ar_nr_collected[i+mM] < 2) { + // if we haven't already collected 2 nonces for this sector + if (ar_nr_resp[ar_nr_collected[i+mM]].ar != ar) { + // Avoid duplicates... probably not necessary, ar should vary. + if (ar_nr_collected[i+mM]==0) { + // first nonce collect + ar_nr_resp[i+mM].cuid = cuid; + ar_nr_resp[i+mM].sector = cardAUTHSC; + ar_nr_resp[i+mM].keytype = cardAUTHKEY; + ar_nr_resp[i+mM].nonce = nonce; + ar_nr_resp[i+mM].nr = nr; + ar_nr_resp[i+mM].ar = ar; + nonce1_count++; + // add this nonce to first moebius nonce + ar_nr_resp[i+ATTACK_KEY_COUNT].cuid = cuid; + ar_nr_resp[i+ATTACK_KEY_COUNT].sector = cardAUTHSC; + ar_nr_resp[i+ATTACK_KEY_COUNT].keytype = cardAUTHKEY; + ar_nr_resp[i+ATTACK_KEY_COUNT].nonce = nonce; + ar_nr_resp[i+ATTACK_KEY_COUNT].nr = nr; + ar_nr_resp[i+ATTACK_KEY_COUNT].ar = ar; + ar_nr_collected[i+ATTACK_KEY_COUNT]++; + } else { // second nonce collect (std and moebius) + ar_nr_resp[i+mM].nonce2 = nonce; + ar_nr_resp[i+mM].nr2 = nr; + ar_nr_resp[i+mM].ar2 = ar; + if (!gettingMoebius) { + nonce2_count++; + // check if this was the last second nonce we need for std attack + if ( nonce2_count == nonce1_count ) { + // done collecting std test switch to moebius + // first finish incrementing last sample + ar_nr_collected[i+mM]++; + // switch to moebius collection + gettingMoebius = true; + mM = ATTACK_KEY_COUNT; + break; + } + } else { + moebius_n_count++; + // if we've collected all the nonces we need - finish. + if (nonce1_count == moebius_n_count) { + cmd_send(CMD_ACK,CMD_SIMULATE_MIFARE_CARD,0,0,&ar_nr_resp,sizeof(ar_nr_resp)); + nonce1_count = 0; + nonce2_count = 0; + moebius_n_count = 0; + gettingMoebius = false; + } + } + } + ar_nr_collected[i+mM]++; + } + } + // we found right spot for this nonce stop looking + break; + } } - uint8_t len = ar_nr_collected*4*4; - cmd_send(CMD_ACK, CMD_SIMULATE_MIFARE_CARD, len, 0, &ar_nr_responses, len); - ar_nr_collected = 0; - memset(ar_nr_responses, 0x00, len); } - } } else if (receivedCmd[0] == MIFARE_ULC_AUTH_1 ) { // ULC authentication, or Desfire Authentication } else if (receivedCmd[0] == MIFARE_ULEV1_AUTH) { // NTAG / EV-1 authentication @@ -1318,6 +1360,36 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) { BigBuf_free_keep_EM(); LED_A_OFF(); + if(flags & FLAG_NR_AR_ATTACK && MF_DBGLEVEL >= 1) { + for ( uint8_t i = 0; i < ATTACK_KEY_COUNT; i++) { + if (ar_nr_collected[i] == 2) { + Dbprintf("Collected two pairs of AR/NR which can be used to extract %s from reader for sector %d:", (i= 4){ Dbprintf("-[ Wake ups after halt [%d]", happened); Dbprintf("-[ Messages after halt [%d]", happened2); @@ -1399,8 +1471,7 @@ static void TransmitFor14443a(const uint8_t *cmd, uint16_t len, uint32_t *timing //----------------------------------------------------------------------------- // Prepare reader command (in bits, support short frames) to send to FPGA //----------------------------------------------------------------------------- -void CodeIso14443aBitsAsReaderPar(const uint8_t *cmd, uint16_t bits, const uint8_t *parity) -{ +void CodeIso14443aBitsAsReaderPar(const uint8_t *cmd, uint16_t bits, const uint8_t *parity) { int i, j; int last = 0; uint8_t b; diff --git a/armsrc/iso14443a.h b/armsrc/iso14443a.h index 8c1117d8..5fb45b60 100644 --- a/armsrc/iso14443a.h +++ b/armsrc/iso14443a.h @@ -13,7 +13,18 @@ #ifndef __ISO14443A_H #define __ISO14443A_H #include "common.h" +#include "proxmark3.h" +#include "apps.h" +#include "util.h" +#include "string.h" +#include "cmd.h" +#include "iso14443crc.h" #include "mifaresniff.h" +#include "iso14443b.h" +#include "crapto1.h" +#include "mifareutil.h" +#include "BigBuf.h" +#include "parity.h" typedef struct { enum { @@ -95,7 +106,7 @@ int EmSend4bitEx(uint8_t resp, bool correctionNeeded); int EmSend4bit(uint8_t resp); int EmSendCmdExPar(uint8_t *resp, uint16_t respLen, bool correctionNeeded, uint8_t *par); int EmSendCmdEx(uint8_t *resp, uint16_t respLen, bool correctionNeeded); -int EmSendCmd(uint8_t *resp, uint16_t respLen); +extern int EmSendCmd(uint8_t *resp, uint16_t respLen); int EmSendCmdPar(uint8_t *resp, uint16_t respLen, uint8_t *par); bool EmLogTrace(uint8_t *reader_data, uint16_t reader_len, uint32_t reader_StartTime, uint32_t reader_EndTime, uint8_t *reader_Parity, uint8_t *tag_data, uint16_t tag_len, uint32_t tag_StartTime, uint32_t tag_EndTime, uint8_t *tag_Parity); diff --git a/armsrc/iso15693.c b/armsrc/iso15693.c index a6ad58ae..1e9a3b5b 100644 --- a/armsrc/iso15693.c +++ b/armsrc/iso15693.c @@ -65,8 +65,6 @@ #include "iso15693tools.h" #include "cmd.h" -#define arraylen(x) (sizeof(x)/sizeof((x)[0])) - /////////////////////////////////////////////////////////////////////// // ISO 15693 Part 2 - Air Interface // This section basicly contains transmission and receiving of bits @@ -81,7 +79,7 @@ #define AddCrc(data,datalen) Iso15693AddCrc(data,datalen) #define sprintUID(target,uid) Iso15693sprintUID(target,uid) -int DEBUG=0; +int DEBUG = 0; // --------------------------- @@ -99,9 +97,8 @@ static void CodeIso15693AsReader(uint8_t *cmd, int n) ToSendReset(); // Give it a bit of slack at the beginning - for(i = 0; i < 24; i++) { + for(i = 0; i < 24; i++) ToSendStuffBit(1); - } // SOF for 1of4 ToSendStuffBit(0); @@ -166,9 +163,8 @@ static void CodeIso15693AsReader(uint8_t *cmd, int n) ToSendStuffBit(1); // And slack at the end, too. - for(i = 0; i < 24; i++) { + for(i = 0; i < 24; i++) ToSendStuffBit(1); - } } // encode data using "1 out of 256" sheme @@ -181,9 +177,8 @@ static void CodeIso15693AsReader256(uint8_t *cmd, int n) ToSendReset(); // Give it a bit of slack at the beginning - for(i = 0; i < 24; i++) { + for(i = 0; i < 24; i++) ToSendStuffBit(1); - } // SOF for 1of256 ToSendStuffBit(0); @@ -196,8 +191,8 @@ static void CodeIso15693AsReader256(uint8_t *cmd, int n) ToSendStuffBit(0); for(i = 0; i < n; i++) { - for (j = 0; j<=255; j++) { - if (cmd[i]==j) { + for (j = 0; j <= 255; j++) { + if (cmd[i] == j) { ToSendStuffBit(1); ToSendStuffBit(0); } else { @@ -213,9 +208,8 @@ static void CodeIso15693AsReader256(uint8_t *cmd, int n) ToSendStuffBit(1); // And slack at the end, too. - for(i = 0; i < 24; i++) { + for(i = 0; i < 24; i++) ToSendStuffBit(1); - } } @@ -224,7 +218,6 @@ static void TransmitTo15693Tag(const uint8_t *cmd, int len, int *samples, int *w { int c; volatile uint32_t r; -// FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD); FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_TX); if(*wait < 10) { *wait = 10; } @@ -292,8 +285,7 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int * { uint8_t *dest = BigBuf_get_addr(); - int c = 0; - int getNext = FALSE; + int c = 0, getNext = FALSE; int8_t prev = 0; FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); @@ -311,14 +303,12 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int * // tone that the tag AM-modulates, so every other sample is I, // every other is Q. We just want power, so abs(I) + abs(Q) is // close to what we want. + // iceman 2016, amplitude sqrt(abs(i) + abs(q)) if(getNext) { - int8_t r = ABS(b) + ABS(prev); - - dest[c++] = (uint8_t)r; + dest[c++] = (uint8_t)ABS(b) + ABS(prev); - if(c >= 2000) { + if(c >= 2000) break; - } } else { prev = b; } @@ -332,46 +322,42 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int * ////////////////////////////////////////// int i, j; - int max = 0, maxPos=0; - - int skip = 4; - + int max = 0, maxPos=0, skip = 4; + int k = 0; // this will be our return value + // if(GraphTraceLen < 1000) return; // THIS CHECKS FOR A BUFFER TO SMALL // First, correlate for SOF for(i = 0; i < 100; i++) { int corr = 0; - for(j = 0; j < arraylen(FrameSOF); j += skip) { - corr += FrameSOF[j]*dest[i+(j/skip)]; + for(j = 0; j < ARRAYLEN(FrameSOF); j += skip) { + corr += FrameSOF[j] * dest[i+(j/skip)]; } if(corr > max) { max = corr; maxPos = i; } } - // DbpString("SOF at %d, correlation %d", maxPos,max/(arraylen(FrameSOF)/skip)); - - int k = 0; // this will be our return value + // DbpString("SOF at %d, correlation %d", maxPos,max/(ARRAYLEN(FrameSOF)/skip)); // greg - If correlation is less than 1 then there's little point in continuing - if ((max/(arraylen(FrameSOF)/skip)) >= 1) + if ((max/(ARRAYLEN(FrameSOF)/skip)) >= 1) { - - i = maxPos + arraylen(FrameSOF)/skip; + i = maxPos + ARRAYLEN(FrameSOF) / skip; uint8_t outBuf[20]; memset(outBuf, 0, sizeof(outBuf)); uint8_t mask = 0x01; for(;;) { int corr0 = 0, corr1 = 0, corrEOF = 0; - for(j = 0; j < arraylen(Logic0); j += skip) { - corr0 += Logic0[j]*dest[i+(j/skip)]; + for(j = 0; j < ARRAYLEN(Logic0); j += skip) { + corr0 += Logic0[j] * dest[i+(j/skip)]; } - for(j = 0; j < arraylen(Logic1); j += skip) { - corr1 += Logic1[j]*dest[i+(j/skip)]; + for(j = 0; j < ARRAYLEN(Logic1); j += skip) { + corr1 += Logic1[j] * dest[i+(j/skip)]; } - for(j = 0; j < arraylen(FrameEOF); j += skip) { - corrEOF += FrameEOF[j]*dest[i+(j/skip)]; + for(j = 0; j < ARRAYLEN(FrameEOF); j += skip) { + corrEOF += FrameEOF[j] * dest[i+(j/skip)]; } // Even things out by the length of the target waveform. corr0 *= 4; @@ -381,17 +367,17 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int * // DbpString("EOF at %d", i); break; } else if(corr1 > corr0) { - i += arraylen(Logic1)/skip; + i += ARRAYLEN(Logic1)/skip; outBuf[k] |= mask; } else { - i += arraylen(Logic0)/skip; + i += ARRAYLEN(Logic0)/skip; } mask <<= 1; if(mask == 0) { k++; mask = 0x01; } - if((i+(int)arraylen(FrameEOF)) >= 2000) { + if( ( i + (int)ARRAYLEN(FrameEOF)) >= 2000) { DbpString("ran off end!"); break; } @@ -399,7 +385,7 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int * if(mask != 0x01) { // this happens, when we miss the EOF // TODO: for some reason this happens quite often if (DEBUG) Dbprintf("error, uneven octet! (extra bits!) mask=%02x", mask); - if (mask<0x08) k--; // discard the last uneven octet; + if (mask < 0x08) k--; // discard the last uneven octet; // 0x08 is an assumption - but works quite often } // uint8_t str1 [8]; @@ -416,10 +402,8 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int * for(i = 0; i < k; i++) { receivedResponse[i] = outBuf[i]; } - } // "end if correlation > 0" (max/(arraylen(FrameSOF)/skip)) + } // "end if correlation > 0" (max/(ARRAYLEN(FrameSOF)/skip)) return k; // return the number of bytes demodulated - -// DbpString("CRC=%04x", Iso15693Crc(outBuf, k-2)); } @@ -428,8 +412,7 @@ static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int { uint8_t *dest = BigBuf_get_addr(); - int c = 0; - int getNext = FALSE; + int c = 0, getNext = FALSE; int8_t prev = 0; FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); @@ -447,17 +430,13 @@ static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int // every other is Q. We just want power, so abs(I) + abs(Q) is // close to what we want. if(getNext) { - int8_t r = ABS(b) + ABS(prev); + dest[c++] = (uint8_t)ABS(b) + ABS(prev); - dest[c++] = (uint8_t)r; - - if(c >= 20000) { + if(c >= 20000) break; - } } else { prev = b; } - getNext = !getNext; } } @@ -466,17 +445,12 @@ static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int /////////// DEMODULATE /////////////////// ////////////////////////////////////////// - int i, j; - int max = 0, maxPos=0; - - int skip = 4; - -// if(GraphTraceLen < 1000) return; // THIS CHECKS FOR A BUFFER TO SMALL + int i, j, max = 0, maxPos=0, skip = 4; // First, correlate for SOF for(i = 0; i < 19000; i++) { int corr = 0; - for(j = 0; j < arraylen(FrameSOF); j += skip) { + for(j = 0; j < ARRAYLEN(FrameSOF); j += skip) { corr += FrameSOF[j]*dest[i+(j/skip)]; } if(corr > max) { @@ -484,28 +458,28 @@ static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int maxPos = i; } } -// DbpString("SOF at %d, correlation %d", maxPos,max/(arraylen(FrameSOF)/skip)); +// DbpString("SOF at %d, correlation %d", maxPos,max/(ARRAYLEN(FrameSOF)/skip)); int k = 0; // this will be our return value // greg - If correlation is less than 1 then there's little point in continuing - if ((max/(arraylen(FrameSOF)/skip)) >= 1) // THIS SHOULD BE 1 + if ((max/(ARRAYLEN(FrameSOF)/skip)) >= 1) // THIS SHOULD BE 1 { - i = maxPos + arraylen(FrameSOF)/skip; + i = maxPos + ARRAYLEN(FrameSOF)/skip; uint8_t outBuf[20]; memset(outBuf, 0, sizeof(outBuf)); uint8_t mask = 0x01; for(;;) { int corr0 = 0, corr1 = 0, corrEOF = 0; - for(j = 0; j < arraylen(Logic0); j += skip) { + for(j = 0; j < ARRAYLEN(Logic0); j += skip) { corr0 += Logic0[j]*dest[i+(j/skip)]; } - for(j = 0; j < arraylen(Logic1); j += skip) { + for(j = 0; j < ARRAYLEN(Logic1); j += skip) { corr1 += Logic1[j]*dest[i+(j/skip)]; } - for(j = 0; j < arraylen(FrameEOF); j += skip) { + for(j = 0; j < ARRAYLEN(FrameEOF); j += skip) { corrEOF += FrameEOF[j]*dest[i+(j/skip)]; } // Even things out by the length of the target waveform. @@ -516,24 +490,24 @@ static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int // DbpString("EOF at %d", i); break; } else if(corr1 > corr0) { - i += arraylen(Logic1)/skip; + i += ARRAYLEN(Logic1)/skip; outBuf[k] |= mask; } else { - i += arraylen(Logic0)/skip; + i += ARRAYLEN(Logic0)/skip; } mask <<= 1; if(mask == 0) { k++; mask = 0x01; } - if((i+(int)arraylen(FrameEOF)) >= 2000) { + if((i+(int)ARRAYLEN(FrameEOF)) >= 2000) { DbpString("ran off end!"); break; } } if(mask != 0x01) { DbpString("sniff: error, uneven octet! (discard extra bits!)"); - /// DbpString(" mask=%02x", mask); + // DbpString(" mask=%02x", mask); } // uint8_t str1 [8]; // itoa(k,str1); @@ -549,10 +523,8 @@ static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int for(i = 0; i < k; i++) { receivedResponse[i] = outBuf[i]; } - } // "end if correlation > 0" (max/(arraylen(FrameSOF)/skip)) + } // "end if correlation > 0" (max/(ARRAYLEN(FrameSOF)/skip)) return k; // return the number of bytes demodulated - -/// DbpString("CRC=%04x", Iso15693Crc(outBuf, k-2)); } @@ -566,8 +538,7 @@ void AcquireRawAdcSamplesIso15693(void) { FpgaDownloadAndGo(FPGA_BITSTREAM_HF); - int c = 0; - int getNext = 0; + int c = 0, getNext = FALSE; int8_t prev = 0; volatile uint32_t r; @@ -600,14 +571,13 @@ void AcquireRawAdcSamplesIso15693(void) FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); c = 0; - getNext = FALSE; for(;;) { if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) AT91C_BASE_SSC->SSC_THR = 0x43; if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { - int8_t b; - b = (int8_t)AT91C_BASE_SSC->SSC_RHR; + + int8_t b = (int8_t)AT91C_BASE_SSC->SSC_RHR; // The samples are correlations against I and Q versions of the // tone that the tag AM-modulates, so every other sample is I, @@ -622,7 +592,6 @@ void AcquireRawAdcSamplesIso15693(void) } else { prev = b; } - getNext = !getNext; } } @@ -633,8 +602,7 @@ void RecordRawAdcSamplesIso15693(void) { uint8_t *dest = BigBuf_get_addr(); - int c = 0; - int getNext = 0; + int c = 0, getNext = FALSE; int8_t prev = 0; FpgaDownloadAndGo(FPGA_BITSTREAM_HF); @@ -646,13 +614,10 @@ void RecordRawAdcSamplesIso15693(void) SpinDelay(200); SetAdcMuxFor(GPIO_MUXSEL_HIPKD); - SpinDelay(100); FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); - c = 0; - getNext = FALSE; for(;;) { if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { AT91C_BASE_SSC->SSC_THR = 0x43; @@ -666,13 +631,10 @@ void RecordRawAdcSamplesIso15693(void) // every other is Q. We just want power, so abs(I) + abs(Q) is // close to what we want. if(getNext) { - int8_t r = ABS(b) + ABS(prev); + dest[c++] = (uint8_t) ABS(b) + ABS(prev); - dest[c++] = (uint8_t)r; - - if(c >= 7000) { + if(c >= 7000) break; - } } else { prev = b; } @@ -723,8 +685,7 @@ void Iso15693InitReader() { // thing that you must send to a tag to get a response. static void BuildIdentifyRequest(void) { - uint8_t cmd[5]; - + uint8_t cmd[5] = {0,1,0,0,0}; uint16_t crc; // one sub-carrier, inventory, 1 slot, fast rate // AFI is at bit 5 (1<<4) when doing an INVENTORY @@ -744,8 +705,7 @@ static void BuildIdentifyRequest(void) // uid is in transmission order (which is reverse of display order) static void BuildReadBlockRequest(uint8_t *uid, uint8_t blockNumber ) { - uint8_t cmd[13]; - + uint8_t cmd[13] = {0,0,0,0,0,0,0,0,0,0,0,0,0}; uint16_t crc; // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block // followed by teh block data @@ -776,8 +736,7 @@ static void BuildReadBlockRequest(uint8_t *uid, uint8_t blockNumber ) // Now the VICC>VCD responses when we are simulating a tag static void BuildInventoryResponse( uint8_t *uid) { - uint8_t cmd[12]; - + uint8_t cmd[12] = {0,0,0,0,0,0,0,0,0,0,0,0}; uint16_t crc; // one sub-carrier, inventory, 1 slot, fast rate // AFI is at bit 5 (1<<4) when doing an INVENTORY @@ -809,20 +768,18 @@ static void BuildReadBlockRequest(uint8_t *uid, uint8_t blockNumber ) // return: lenght of received data int SendDataTag(uint8_t *send, int sendlen, int init, int speed, uint8_t **recv) { - int samples = 0; - int tsamples = 0; - int wait = 0; - int elapsed = 0; + int samples = 0, tsamples = 0; + int wait = 0, elapsed = 0; + int answerLen = 0; - LED_A_ON(); - LED_B_ON(); - LED_C_OFF(); - LED_D_OFF(); + LED_A_ON(); LED_B_ON(); + + LED_C_OFF(); LED_D_OFF(); if (init) Iso15693InitReader(); - int answerLen=0; - uint8_t *answer = BigBuf_get_addr() + 3660; + // answer is 100bytes long? + uint8_t *answer = BigBuf_malloc(100); if (recv != NULL) memset(answer, 0, 100); if (!speed) { @@ -836,17 +793,16 @@ int SendDataTag(uint8_t *send, int sendlen, int init, int speed, uint8_t **recv) LED_A_ON(); LED_B_OFF(); - TransmitTo15693Tag(ToSend,ToSendMax,&tsamples, &wait); + TransmitTo15693Tag(ToSend, ToSendMax, &tsamples, &wait); // Now wait for a response if (recv!=NULL) { LED_A_OFF(); LED_B_ON(); answerLen = GetIso15693AnswerFromTag(answer, 100, &samples, &elapsed) ; - *recv=answer; + *recv = answer; } LEDsoff(); - return answerLen; } @@ -858,75 +814,71 @@ int SendDataTag(uint8_t *send, int sendlen, int init, int speed, uint8_t **recv) // Decodes a message from a tag and displays its metadata and content #define DBD15STATLEN 48 void DbdecodeIso15693Answer(int len, uint8_t *d) { - char status[DBD15STATLEN+1]={0}; + char status[DBD15STATLEN+1] = {0}; uint16_t crc; - if (len>3) { - if (d[0]&(1<<3)) - strncat(status,"ProtExt ",DBD15STATLEN); - if (d[0]&1) { + if (len > 3) { + if (d[0] & ( 1 << 3 )) + strncat(status, "ProtExt ", DBD15STATLEN); + if (d[0] & 1) { // error - strncat(status,"Error ",DBD15STATLEN); + strncat(status, "Error ", DBD15STATLEN); switch (d[1]) { case 0x01: - strncat(status,"01:notSupp",DBD15STATLEN); + strncat(status, "01:notSupp", DBD15STATLEN); break; case 0x02: - strncat(status,"02:notRecog",DBD15STATLEN); + strncat(status, "02:notRecog", DBD15STATLEN); break; case 0x03: - strncat(status,"03:optNotSupp",DBD15STATLEN); + strncat(status, "03:optNotSupp", DBD15STATLEN); break; case 0x0f: - strncat(status,"0f:noInfo",DBD15STATLEN); + strncat(status, "0f:noInfo", DBD15STATLEN); break; case 0x10: - strncat(status,"10:dontExist",DBD15STATLEN); + strncat(status, "10:dontExist", DBD15STATLEN); break; case 0x11: - strncat(status,"11:lockAgain",DBD15STATLEN); + strncat(status, "11:lockAgain", DBD15STATLEN); break; case 0x12: - strncat(status,"12:locked",DBD15STATLEN); + strncat(status, "12:locked", DBD15STATLEN); break; case 0x13: - strncat(status,"13:progErr",DBD15STATLEN); + strncat(status, "13:progErr", DBD15STATLEN); break; case 0x14: - strncat(status,"14:lockErr",DBD15STATLEN); + strncat(status, "14:lockErr", DBD15STATLEN); break; default: - strncat(status,"unknownErr",DBD15STATLEN); + strncat(status, "unknownErr", DBD15STATLEN); } - strncat(status," ",DBD15STATLEN); + strncat(status ," " ,DBD15STATLEN); } else { - strncat(status,"NoErr ",DBD15STATLEN); + strncat(status ,"NoErr ", DBD15STATLEN); } - crc=Crc(d,len-2); + crc = Crc(d,len-2); if ( (( crc & 0xff ) == d[len-2]) && (( crc >> 8 ) == d[len-1]) ) - strncat(status,"CrcOK",DBD15STATLEN); + strncat(status, "CrcOK", DBD15STATLEN); else - strncat(status,"CrcFail!",DBD15STATLEN); + strncat(status, "CrcFail!", DBD15STATLEN); - Dbprintf("%s",status); + Dbprintf("%s", status); } } - - /////////////////////////////////////////////////////////////////////// // Functions called via USB/Client /////////////////////////////////////////////////////////////////////// void SetDebugIso15693(uint32_t debug) { - DEBUG=debug; - Dbprintf("Iso15693 Debug is now %s",DEBUG?"on":"off"); + DEBUG = debug; + Dbprintf("Iso15693 Debug is now %s", DEBUG ? "on" : "off"); return; } - - //----------------------------------------------------------------------------- // Simulate an ISO15693 reader, perform anti-collision and then attempt to read a sector // all demodulation performed in arm rather than host. - greg @@ -950,11 +902,13 @@ void ReaderIso15693(uint32_t parameter) FpgaDownloadAndGo(FPGA_BITSTREAM_HF); - uint8_t *answer1 = BigBuf_get_addr() + 3660; - uint8_t *answer2 = BigBuf_get_addr() + 3760; - uint8_t *answer3 = BigBuf_get_addr() + 3860; + uint8_t *answer1 = BigBuf_malloc(100); + uint8_t *answer2 = BigBuf_malloc(100); + uint8_t *answer3 = BigBuf_malloc(100); // Blank arrays - memset(answer1, 0x00, 300); + memset(answer1, 0x00, 100); + memset(answer2, 0x00, 100); + memset(answer3, 0x00, 100); SetAdcMuxFor(GPIO_MUXSEL_HIPKD); // Setup SSC @@ -984,7 +938,7 @@ void ReaderIso15693(uint32_t parameter) // Now wait for a response answerLen1 = GetIso15693AnswerFromTag(answer1, 100, &samples, &elapsed) ; - if (answerLen1 >=12) // we should do a better check than this + if (answerLen1 >= 12) // we should do a better check than this { TagUID[0] = answer1[2]; TagUID[1] = answer1[3]; @@ -998,8 +952,8 @@ void ReaderIso15693(uint32_t parameter) } Dbprintf("%d octets read from IDENTIFY request:", answerLen1); - DbdecodeIso15693Answer(answerLen1,answer1); - Dbhexdump(answerLen1,answer1,true); + DbdecodeIso15693Answer(answerLen1, answer1); + Dbhexdump(answerLen1, answer1, true); // UID is reverse if (answerLen1>=12) @@ -1009,27 +963,27 @@ void ReaderIso15693(uint32_t parameter) Dbprintf("%d octets read from SELECT request:", answerLen2); - DbdecodeIso15693Answer(answerLen2,answer2); - Dbhexdump(answerLen2,answer2,true); + DbdecodeIso15693Answer(answerLen2, answer2); + Dbhexdump(answerLen2, answer2, true); Dbprintf("%d octets read from XXX request:", answerLen3); DbdecodeIso15693Answer(answerLen3,answer3); - Dbhexdump(answerLen3,answer3,true); + Dbhexdump(answerLen3, answer3, true); // read all pages - if (answerLen1>=12 && DEBUG) { - i=0; - while (i<32) { // sanity check, assume max 32 pages + if (answerLen1 >= 12 && DEBUG) { + i = 0; + while ( i < 32 ) { // sanity check, assume max 32 pages BuildReadBlockRequest(TagUID,i); - TransmitTo15693Tag(ToSend,ToSendMax,&tsamples, &wait); - answerLen2 = GetIso15693AnswerFromTag(answer2, 100, &samples, &elapsed); + TransmitTo15693Tag(ToSend,ToSendMax,&tsamples, &wait); + answerLen2 = GetIso15693AnswerFromTag(answer2, 100, &samples, &elapsed); if (answerLen2>0) { - Dbprintf("READ SINGLE BLOCK %d returned %d octets:",i,answerLen2); - DbdecodeIso15693Answer(answerLen2,answer2); - Dbhexdump(answerLen2,answer2,true); + Dbprintf("READ SINGLE BLOCK %d returned %d octets:", i, answerLen2); + DbdecodeIso15693Answer(answerLen2, answer2); + Dbhexdump(answerLen2, answer2, true); if ( *((uint32_t*) answer2) == 0x07160101 ) break; // exit on NoPageErr } - i++; + ++i; } } @@ -1056,7 +1010,7 @@ void SimTagIso15693(uint32_t parameter, uint8_t *uid) FpgaDownloadAndGo(FPGA_BITSTREAM_HF); - uint8_t *buf = BigBuf_get_addr() + 3660; + uint8_t *buf = BigBuf_malloc(100); memset(buf, 0x00, 100); SetAdcMuxFor(GPIO_MUXSEL_HIPKD); @@ -1104,63 +1058,63 @@ void SimTagIso15693(uint32_t parameter, uint8_t *uid) void BruteforceIso15693Afi(uint32_t speed) { uint8_t data[20]; - uint8_t *recv=data; - int datalen=0, recvlen=0; - + uint8_t *recv = data; + int datalen = 0, recvlen = 0; + + memset(data, 0, sizeof(data)); + Iso15693InitReader(); // first without AFI // Tags should respond wihtout AFI and with AFI=0 even when AFI is active - data[0]=ISO15_REQ_SUBCARRIER_SINGLE | ISO15_REQ_DATARATE_HIGH | - ISO15_REQ_INVENTORY | ISO15_REQINV_SLOT1; - data[1]=ISO15_CMD_INVENTORY; - data[2]=0; // mask length - datalen=AddCrc(data,3); - recvlen=SendDataTag(data,datalen,0,speed,&recv); + data[0] = ISO15_REQ_SUBCARRIER_SINGLE | ISO15_REQ_DATARATE_HIGH | + ISO15_REQ_INVENTORY | ISO15_REQINV_SLOT1; + data[1] = ISO15_CMD_INVENTORY; + data[2] = 0; // mask length + datalen = AddCrc(data, 3); + recvlen = SendDataTag(data, datalen, 0, speed, &recv); WDT_HIT(); - if (recvlen>=12) { - Dbprintf("NoAFI UID=%s",sprintUID(NULL,&recv[2])); + if (recvlen >= 12) { + Dbprintf("NoAFI UID=%s", sprintUID(NULL, &recv[2])); } // now with AFI - data[0]=ISO15_REQ_SUBCARRIER_SINGLE | ISO15_REQ_DATARATE_HIGH | - ISO15_REQ_INVENTORY | ISO15_REQINV_AFI | ISO15_REQINV_SLOT1; - data[1]=ISO15_CMD_INVENTORY; - data[2]=0; // AFI - data[3]=0; // mask length + data[0] = ISO15_REQ_SUBCARRIER_SINGLE | ISO15_REQ_DATARATE_HIGH | + ISO15_REQ_INVENTORY | ISO15_REQINV_AFI | ISO15_REQINV_SLOT1; + data[1] = ISO15_CMD_INVENTORY; + data[2] = 0; // AFI + data[3] = 0; // mask length - for (int i=0;i<256;i++) { - data[2]=i & 0xFF; - datalen=AddCrc(data,4); - recvlen=SendDataTag(data,datalen,0,speed,&recv); + for (int i = 0; i < 256; i++) { + data[2] = i & 0xFF; // iceman 2016, is & 0xFF needed? + datalen = AddCrc(data, 4); + recvlen = SendDataTag(data, datalen, 0, speed, &recv); WDT_HIT(); - if (recvlen>=12) { - Dbprintf("AFI=%i UID=%s",i,sprintUID(NULL,&recv[2])); + if (recvlen >= 12) { + Dbprintf("AFI=%i UID=%s", i, sprintUID(NULL, &recv[2])); } } Dbprintf("AFI Bruteforcing done."); - } // Allows to directly send commands to the tag via the client void DirectTag15693Command(uint32_t datalen,uint32_t speed, uint32_t recv, uint8_t data[]) { - int recvlen=0; + int recvlen = 0; uint8_t *recvbuf = BigBuf_get_addr(); -// UsbCommand n; if (DEBUG) { Dbprintf("SEND"); Dbhexdump(datalen,data,true); } - recvlen=SendDataTag(data,datalen,1,speed,(recv?&recvbuf:NULL)); + recvlen = SendDataTag(data, datalen, 1, speed, (recv ? &recvbuf : NULL)); if (recv) { LED_B_ON(); - cmd_send(CMD_ACK,recvlen>48?48:recvlen,0,0,recvbuf,48); + cmd_send(CMD_ACK,recvlen>48?48:recvlen,0,0,recvbuf,48); LED_B_OFF(); if (DEBUG) { @@ -1169,156 +1123,4 @@ void DirectTag15693Command(uint32_t datalen,uint32_t speed, uint32_t recv, uint8 Dbhexdump(recvlen,recvbuf,true); } } - -} - - - - -// -------------------------------------------------------------------- -// -- Misc & deprecated functions -// -------------------------------------------------------------------- - -/* - -// do not use; has a fix UID -static void __attribute__((unused)) BuildSysInfoRequest(uint8_t *uid) -{ - uint8_t cmd[12]; - - uint16_t crc; - // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block - // followed by teh block data - // one sub-carrier, inventory, 1 slot, fast rate - cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit - // System Information command code - cmd[1] = 0x2B; - // UID may be optionally specified here - // 64-bit UID - cmd[2] = 0x32; - cmd[3]= 0x4b; - cmd[4] = 0x03; - cmd[5] = 0x01; - cmd[6] = 0x00; - cmd[7] = 0x10; - cmd[8] = 0x05; - cmd[9]= 0xe0; // always e0 (not exactly unique) - //Now the CRC - crc = Crc(cmd, 10); // the crc needs to be calculated over 2 bytes - cmd[10] = crc & 0xff; - cmd[11] = crc >> 8; - - CodeIso15693AsReader(cmd, sizeof(cmd)); -} - - -// do not use; has a fix UID -static void __attribute__((unused)) BuildReadMultiBlockRequest(uint8_t *uid) -{ - uint8_t cmd[14]; - - uint16_t crc; - // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block - // followed by teh block data - // one sub-carrier, inventory, 1 slot, fast rate - cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit - // READ Multi BLOCK command code - cmd[1] = 0x23; - // UID may be optionally specified here - // 64-bit UID - cmd[2] = 0x32; - cmd[3]= 0x4b; - cmd[4] = 0x03; - cmd[5] = 0x01; - cmd[6] = 0x00; - cmd[7] = 0x10; - cmd[8] = 0x05; - cmd[9]= 0xe0; // always e0 (not exactly unique) - // First Block number to read - cmd[10] = 0x00; - // Number of Blocks to read - cmd[11] = 0x2f; // read quite a few - //Now the CRC - crc = Crc(cmd, 12); // the crc needs to be calculated over 2 bytes - cmd[12] = crc & 0xff; - cmd[13] = crc >> 8; - - CodeIso15693AsReader(cmd, sizeof(cmd)); -} - -// do not use; has a fix UID -static void __attribute__((unused)) BuildArbitraryRequest(uint8_t *uid,uint8_t CmdCode) -{ - uint8_t cmd[14]; - - uint16_t crc; - // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block - // followed by teh block data - // one sub-carrier, inventory, 1 slot, fast rate - cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit - // READ BLOCK command code - cmd[1] = CmdCode; - // UID may be optionally specified here - // 64-bit UID - cmd[2] = 0x32; - cmd[3]= 0x4b; - cmd[4] = 0x03; - cmd[5] = 0x01; - cmd[6] = 0x00; - cmd[7] = 0x10; - cmd[8] = 0x05; - cmd[9]= 0xe0; // always e0 (not exactly unique) - // Parameter - cmd[10] = 0x00; - cmd[11] = 0x0a; - -// cmd[12] = 0x00; -// cmd[13] = 0x00; //Now the CRC - crc = Crc(cmd, 12); // the crc needs to be calculated over 2 bytes - cmd[12] = crc & 0xff; - cmd[13] = crc >> 8; - - CodeIso15693AsReader(cmd, sizeof(cmd)); -} - -// do not use; has a fix UID -static void __attribute__((unused)) BuildArbitraryCustomRequest(uint8_t uid[], uint8_t CmdCode) -{ - uint8_t cmd[14]; - - uint16_t crc; - // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block - // followed by teh block data - // one sub-carrier, inventory, 1 slot, fast rate - cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit - // READ BLOCK command code - cmd[1] = CmdCode; - // UID may be optionally specified here - // 64-bit UID - cmd[2] = 0x32; - cmd[3]= 0x4b; - cmd[4] = 0x03; - cmd[5] = 0x01; - cmd[6] = 0x00; - cmd[7] = 0x10; - cmd[8] = 0x05; - cmd[9]= 0xe0; // always e0 (not exactly unique) - // Parameter - cmd[10] = 0x05; // for custom codes this must be manufcturer code - cmd[11] = 0x00; - -// cmd[12] = 0x00; -// cmd[13] = 0x00; //Now the CRC - crc = Crc(cmd, 12); // the crc needs to be calculated over 2 bytes - cmd[12] = crc & 0xff; - cmd[13] = crc >> 8; - - CodeIso15693AsReader(cmd, sizeof(cmd)); -} - - - - -*/ - - +} \ No newline at end of file diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c index 93eea212..269f36c4 100644 --- a/armsrc/mifarecmd.c +++ b/armsrc/mifarecmd.c @@ -1428,7 +1428,6 @@ void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){ } void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){ - uint32_t cuid = arg0; uint8_t key[16] = {0x00}; byte_t dataout[12] = {0x00}; diff --git a/armsrc/mifarecmd.h b/armsrc/mifarecmd.h index 3c00a343..3e2d0032 100644 --- a/armsrc/mifarecmd.h +++ b/armsrc/mifarecmd.h @@ -17,12 +17,10 @@ #include "apps.h" #include "util.h" #include "string.h" - #include "iso14443crc.h" #include "iso14443a.h" #include "crapto1.h" #include "mifareutil.h" #include "common.h" - #endif \ No newline at end of file -- 2.39.5