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fix hf mf sim

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* fix parity encryption (thanks to Eloff, http://www.proxmark.org/forum/viewtopic.php?id=6347)
* add support to simulate Mifare Mini, Mifare 2K and Mifare 4K
* change to standard LED handling (A: PM is working, B: reader is sending, C: tag is responding, D: HF field is on)
* whitespace
This commit is contained in:
pwpiwi 2019-03-26 08:12:01 +01:00
commit 02e47adfb8
10 changed files with 292 additions and 180 deletions
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11
armsrc/BigBuf.c
View file

@ -39,6 +39,7 @@ static uint8_t *emulator_memory = NULL;
static uint32_t traceLen = 0; static uint32_t traceLen = 0;
static bool tracing = true; static bool tracing = true;
// get the address of BigBuf // get the address of BigBuf
uint8_t *BigBuf_get_addr(void) uint8_t *BigBuf_get_addr(void)
{ {
@ -63,6 +64,8 @@ void BigBuf_Clear(void)
{ {
BigBuf_Clear_ext(true); BigBuf_Clear_ext(true);
} }
// clear ALL of BigBuf // clear ALL of BigBuf
void BigBuf_Clear_ext(bool verbose) void BigBuf_Clear_ext(bool verbose)
{ {
@ -70,10 +73,13 @@ void BigBuf_Clear_ext(bool verbose)
if (verbose) if (verbose)
Dbprintf("Buffer cleared (%i bytes)", BIGBUF_SIZE); Dbprintf("Buffer cleared (%i bytes)", BIGBUF_SIZE);
} }
void BigBuf_Clear_EM(void){ void BigBuf_Clear_EM(void){
memset(BigBuf_get_EM_addr(), 0, CARD_MEMORY_SIZE); memset(BigBuf_get_EM_addr(), 0, CARD_MEMORY_SIZE);
} }
void BigBuf_Clear_keep_EM(void) void BigBuf_Clear_keep_EM(void)
{ {
memset(BigBuf, 0, BigBuf_hi); memset(BigBuf, 0, BigBuf_hi);
@ -128,18 +134,22 @@ uint16_t BigBuf_max_traceLen(void)
return BigBuf_hi; return BigBuf_hi;
} }
void clear_trace() { void clear_trace() {
traceLen = 0; traceLen = 0;
} }
void set_tracing(bool enable) { void set_tracing(bool enable) {
tracing = enable; tracing = enable;
} }
bool get_tracing(void) { bool get_tracing(void) {
return tracing; return tracing;
} }
/** /**
* Get the number of bytes traced * Get the number of bytes traced
* @return * @return
@ -149,6 +159,7 @@ uint16_t BigBuf_get_traceLen(void)
return traceLen; return traceLen;
} }
/** /**
This is a function to store traces. All protocols can use this generic tracer-function. This is a function to store traces. All protocols can use this generic tracer-function.
The traces produced by calling this function can be fetched on the client-side The traces produced by calling this function can be fetched on the client-side

3
armsrc/appmain.c
View file

@ -29,6 +29,7 @@
#include "lfsampling.h" #include "lfsampling.h"
#include "BigBuf.h" #include "BigBuf.h"
#include "mifareutil.h" #include "mifareutil.h"
#include "mifaresim.h"
#include "pcf7931.h" #include "pcf7931.h"
#include "i2c.h" #include "i2c.h"
#include "hfsnoop.h" #include "hfsnoop.h"
@ -1249,7 +1250,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
MifareChkKeys(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes); MifareChkKeys(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
break; break;
case CMD_SIMULATE_MIFARE_CARD: case CMD_SIMULATE_MIFARE_CARD:
Mifare1ksim(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes); MifareSim(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
break; break;
// emulator // emulator

1
armsrc/apps.h
View file

@ -119,7 +119,6 @@ void MifareUWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain);
void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain); void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain);
void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags, uint8_t *datain); void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags, uint8_t *datain);
void MifareChkKeys(uint16_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain); void MifareChkKeys(uint16_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain);
void Mifare1ksim(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain);
void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain); void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain);
void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain); void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain);
void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain); void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain);

10
armsrc/iso14443a.c
View file

@ -1264,6 +1264,7 @@ static void PrepareDelayedTransfer(uint16_t delay)
//------------------------------------------------------------------------------------- //-------------------------------------------------------------------------------------
static void TransmitFor14443a(const uint8_t *cmd, uint16_t len, uint32_t *timing) static void TransmitFor14443a(const uint8_t *cmd, uint16_t len, uint32_t *timing)
{ {
LED_B_ON();
LED_D_ON(); LED_D_ON();
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD); FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
@ -1299,6 +1300,7 @@ static void TransmitFor14443a(const uint8_t *cmd, uint16_t len, uint32_t *timing
} }
NextTransferTime = MAX(NextTransferTime, LastTimeProxToAirStart + REQUEST_GUARD_TIME); NextTransferTime = MAX(NextTransferTime, LastTimeProxToAirStart + REQUEST_GUARD_TIME);
LED_B_OFF();
} }
@ -1420,8 +1422,6 @@ int EmGetCmd(uint8_t *received, uint16_t *len, uint8_t *parity)
// Set FPGA mode to "simulated ISO 14443 tag", no modulation (listen // Set FPGA mode to "simulated ISO 14443 tag", no modulation (listen
// only, since we are receiving, not transmitting). // only, since we are receiving, not transmitting).
// Signal field is off with the appropriate LED
LED_D_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN); FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN);
for(;;) { for(;;) {
@ -1463,12 +1463,13 @@ int EmGetCmd(uint8_t *received, uint16_t *len, uint8_t *parity)
static int EmSendCmd14443aRaw(uint8_t *resp, uint16_t respLen) static int EmSendCmd14443aRaw(uint8_t *resp, uint16_t respLen)
{ {
LED_C_ON();
uint8_t b; uint8_t b;
uint16_t i = 0; uint16_t i = 0;
bool correctionNeeded; bool correctionNeeded;
// Modulate Manchester // Modulate Manchester
LED_D_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD); FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD);
// include correction bit if necessary // include correction bit if necessary
@ -1516,6 +1517,7 @@ static int EmSendCmd14443aRaw(uint8_t *resp, uint16_t respLen)
} }
} }
LED_C_OFF();
return 0; return 0;
} }
@ -1762,7 +1764,7 @@ int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, u
// OK we will select at least at cascade 1, lets see if first byte of UID was 0x88 in // OK we will select at least at cascade 1, lets see if first byte of UID was 0x88 in
// which case we need to make a cascade 2 request and select - this is a long UID // which case we need to make a cascade 2 request and select - this is a long UID
// While the UID is not complete, the 3nd bit (from the right) is set in the SAK. // While the UID is not complete, the 3rd bit (from the right) is set in the SAK.
for(; sak & 0x04; cascade_level++) { for(; sak & 0x04; cascade_level++) {
// SELECT_* (L1: 0x93, L2: 0x95, L3: 0x97) // SELECT_* (L1: 0x93, L2: 0x95, L3: 0x97)
sel_uid[0] = sel_all[0] = 0x93 + cascade_level * 2; sel_uid[0] = sel_all[0] = 0x93 + cascade_level * 2;

157
armsrc/mifaresim.c
View file

@ -39,8 +39,6 @@
#define MFEMUL_INTREG_REST 11 #define MFEMUL_INTREG_REST 11
#define MFEMUL_HALTED 12 #define MFEMUL_HALTED 12
#define cardSTATE_TO_IDLE() { cardSTATE = MFEMUL_IDLE; LED_B_OFF(); LED_C_OFF(); }
#define AC_DATA_READ 0 #define AC_DATA_READ 0
#define AC_DATA_WRITE 1 #define AC_DATA_WRITE 1
#define AC_DATA_INC 2 #define AC_DATA_INC 2
@ -57,6 +55,25 @@
#define AUTHKEYNONE 0xff #define AUTHKEYNONE 0xff
static int ParamCardSizeBlocks(const char c) {
int numBlocks = 16 * 4;
switch (c) {
case '0' : numBlocks = 5 * 4; break;
case '2' : numBlocks = 32 * 4; break;
case '4' : numBlocks = 32 * 4 + 8 * 16; break;
default: numBlocks = 16 * 4;
}
return numBlocks;
}
static uint8_t BlockToSector(int block_num) {
if (block_num < 32 * 4) { // 4 blocks per sector
return (block_num / 4);
} else { // 16 blocks per sector
return 32 + (block_num - 32 * 4) / 16;
}
}
static bool IsTrailerAccessAllowed(uint8_t blockNo, uint8_t keytype, uint8_t action) { static bool IsTrailerAccessAllowed(uint8_t blockNo, uint8_t keytype, uint8_t action) {
uint8_t sector_trailer[16]; uint8_t sector_trailer[16];
emlGetMem(sector_trailer, blockNo, 1); emlGetMem(sector_trailer, blockNo, 1);
@ -169,14 +186,14 @@ static bool IsAccessAllowed(uint8_t blockNo, uint8_t keytype, uint8_t action) {
} }
static void MifareSimInit(uint8_t flags, uint8_t *datain, tag_response_info_t **responses, uint32_t *cuid, uint8_t *uid_len) { static void MifareSimInit(uint8_t flags, uint8_t *datain, tag_response_info_t **responses, uint32_t *cuid, uint8_t *uid_len, uint8_t cardsize) {
#define TAG_RESPONSE_COUNT 5 // number of precompiled responses #define TAG_RESPONSE_COUNT 5 // number of precompiled responses
static uint8_t rATQA[] = {0x04, 0x00}; // indicate Mifare classic 1k 4Byte UID static uint8_t rATQA[] = {0x00, 0x00};
static uint8_t rUIDBCC1[] = {0x00, 0x00, 0x00, 0x00, 0x00}; // UID 1st cascade level static uint8_t rUIDBCC1[] = {0x00, 0x00, 0x00, 0x00, 0x00}; // UID 1st cascade level
static uint8_t rUIDBCC2[] = {0x00, 0x00, 0x00, 0x00, 0x00}; // UID 2nd cascade level static uint8_t rUIDBCC2[] = {0x00, 0x00, 0x00, 0x00, 0x00}; // UID 2nd cascade level
static uint8_t rSAKfinal[]= {0x08, 0xb6, 0xdd}; // mifare 1k indicated static uint8_t rSAKfinal[]= {0x00, 0x00, 0x00}; // SAK after UID complete
static uint8_t rSAK1[] = {0x04, 0xda, 0x17}; // indicate UID not finished static uint8_t rSAK1[] = {0x00, 0x00, 0x00}; // indicate UID not finished
*uid_len = 4; *uid_len = 4;
// UID can be set from emulator memory or incoming data and can be 4 or 7 bytes long // UID can be set from emulator memory or incoming data and can be 4 or 7 bytes long
@ -210,7 +227,6 @@ static void MifareSimInit(uint8_t flags, uint8_t *datain, tag_response_info_t **
} }
break; break;
case 7: case 7:
rATQA[0] |= 0x40;
*cuid = bytes_to_num(rUIDBCC2, 4); *cuid = bytes_to_num(rUIDBCC2, 4);
rUIDBCC1[4] = rUIDBCC1[0] ^ rUIDBCC1[1] ^ rUIDBCC1[2] ^ rUIDBCC1[3]; rUIDBCC1[4] = rUIDBCC1[0] ^ rUIDBCC1[1] ^ rUIDBCC1[2] ^ rUIDBCC1[3];
rUIDBCC2[4] = rUIDBCC2[0] ^ rUIDBCC2[1] ^ rUIDBCC2[2] ^ rUIDBCC2[3]; rUIDBCC2[4] = rUIDBCC2[0] ^ rUIDBCC2[1] ^ rUIDBCC2[2] ^ rUIDBCC2[3];
@ -223,6 +239,35 @@ static void MifareSimInit(uint8_t flags, uint8_t *datain, tag_response_info_t **
break; break;
} }
// set SAK based on cardsize
switch (cardsize) {
case '0': rSAKfinal[0] = 0x09; break; // Mifare Mini
case '2': rSAKfinal[0] = 0x10; break; // Mifare 2K
case '4': rSAKfinal[0] = 0x18; break; // Mifare 4K
default: rSAKfinal[0] = 0x08; // Mifare 1K
}
ComputeCrc14443(CRC_14443_A, rSAKfinal, 1, rSAKfinal + 1, rSAKfinal + 2);
if (MF_DBGLEVEL >= 2) {
Dbprintf("SAK: %02x", rSAKfinal[0]);
}
// set SAK for incomplete UID
rSAK1[0] = 0x04; // Bit 3 indicates incomplete UID
ComputeCrc14443(CRC_14443_A, rSAK1, 1, rSAK1 + 1, rSAK1 + 2);
// set ATQA based on cardsize and UIDlen
if (cardsize == '4') {
rATQA[0] = 0x02;
} else {
rATQA[0] = 0x04;
}
if (*uid_len == 7) {
rATQA[0] |= 0x40;
}
if (MF_DBGLEVEL >= 2) {
Dbprintf("ATQA: %02x %02x", rATQA[1], rATQA[0]);
}
static tag_response_info_t responses_init[TAG_RESPONSE_COUNT] = { static tag_response_info_t responses_init[TAG_RESPONSE_COUNT] = {
{ .response = rATQA, .response_n = sizeof(rATQA) }, // Answer to request - respond with card type { .response = rATQA, .response_n = sizeof(rATQA) }, // Answer to request - respond with card type
{ .response = rUIDBCC1, .response_n = sizeof(rUIDBCC1) }, // Anticollision cascade1 - respond with first part of uid { .response = rUIDBCC1, .response_n = sizeof(rUIDBCC1) }, // Anticollision cascade1 - respond with first part of uid
@ -262,7 +307,7 @@ static bool HasValidCRC(uint8_t *receivedCmd, uint16_t receivedCmd_len) {
/** /**
*MIFARE 1K simulate. *MIFARE simulate.
* *
*@param flags : *@param flags :
* FLAG_INTERACTIVE - In interactive mode, we are expected to finish the operation with an ACK * FLAG_INTERACTIVE - In interactive mode, we are expected to finish the operation with an ACK
@ -274,8 +319,10 @@ static bool HasValidCRC(uint8_t *receivedCmd, uint16_t receivedCmd_len) {
*@param exitAfterNReads, exit simulation after n blocks have been read, 0 is infinite ... *@param exitAfterNReads, exit simulation after n blocks have been read, 0 is infinite ...
* (unless reader attack mode enabled then it runs util it gets enough nonces to recover all keys attmpted) * (unless reader attack mode enabled then it runs util it gets enough nonces to recover all keys attmpted)
*/ */
void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *datain) void MifareSim(uint8_t flags, uint8_t exitAfterNReads, uint8_t cardsize, uint8_t *datain)
{ {
LED_A_ON();
tag_response_info_t *responses; tag_response_info_t *responses;
uint8_t uid_len = 4; uint8_t uid_len = 4;
uint32_t cuid = 0; uint32_t cuid = 0;
@ -301,7 +348,9 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
uint8_t rAUTH_NT[] = {0x01, 0x02, 0x03, 0x04}; uint8_t rAUTH_NT[] = {0x01, 0x02, 0x03, 0x04};
uint8_t rAUTH_AT[] = {0x00, 0x00, 0x00, 0x00}; uint8_t rAUTH_AT[] = {0x00, 0x00, 0x00, 0x00};
//Here, we collect UID,sector,keytype,NT,AR,NR,NT2,AR2,NR2 int num_blocks = ParamCardSizeBlocks(cardsize);
// Here we collect UID, sector, keytype, NT, AR, NR, NT2, AR2, NR2
// This will be used in the reader-only attack. // This will be used in the reader-only attack.
// allow collecting up to 7 sets of nonces to allow recovery of up to 7 keys // allow collecting up to 7 sets of nonces to allow recovery of up to 7 keys
@ -328,7 +377,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
// free eventually allocated BigBuf memory but keep Emulator Memory // free eventually allocated BigBuf memory but keep Emulator Memory
BigBuf_free_keep_EM(); BigBuf_free_keep_EM();
MifareSimInit(flags, datain, &responses, &cuid, &uid_len); MifareSimInit(flags, datain, &responses, &cuid, &uid_len, cardsize);
// We need to listen to the high-frequency, peak-detected path. // We need to listen to the high-frequency, peak-detected path.
iso14443a_setup(FPGA_HF_ISO14443A_TAGSIM_LISTEN); iso14443a_setup(FPGA_HF_ISO14443A_TAGSIM_LISTEN);
@ -349,18 +398,19 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
if (cardSTATE == MFEMUL_NOFIELD) { if (cardSTATE == MFEMUL_NOFIELD) {
int vHf = (MAX_ADC_HF_VOLTAGE_LOW * AvgAdc(ADC_CHAN_HF_LOW)) >> 10; int vHf = (MAX_ADC_HF_VOLTAGE_LOW * AvgAdc(ADC_CHAN_HF_LOW)) >> 10;
if (vHf > MF_MINFIELDV) { if (vHf > MF_MINFIELDV) {
LED_A_ON(); LED_D_ON();
cardSTATE_TO_IDLE(); cardSTATE = MFEMUL_IDLE;
} }
button_pushed = BUTTON_PRESS(); button_pushed = BUTTON_PRESS();
continue; continue;
} }
FpgaEnableTracing();
//Now, get data //Now, get data
int res = EmGetCmd(receivedCmd, &receivedCmd_len, receivedCmd_par); int res = EmGetCmd(receivedCmd, &receivedCmd_len, receivedCmd_par);
if (res == 2) { //Field is off! if (res == 2) { //Field is off!
LEDsoff(); LED_D_OFF();
cardSTATE = MFEMUL_NOFIELD; cardSTATE = MFEMUL_NOFIELD;
continue; continue;
} else if (res == 1) { // button pressed } else if (res == 1) { // button pressed
@ -371,6 +421,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
// WUPA in HALTED state or REQA or WUPA in any other state // WUPA in HALTED state or REQA or WUPA in any other state
if (receivedCmd_len == 1 && ((receivedCmd[0] == ISO14443A_CMD_REQA && cardSTATE != MFEMUL_HALTED) || receivedCmd[0] == ISO14443A_CMD_WUPA)) { if (receivedCmd_len == 1 && ((receivedCmd[0] == ISO14443A_CMD_REQA && cardSTATE != MFEMUL_HALTED) || receivedCmd[0] == ISO14443A_CMD_WUPA)) {
EmSendPrecompiledCmd(&responses[ATQA]); EmSendPrecompiledCmd(&responses[ATQA]);
FpgaDisableTracing();
// init crypto block // init crypto block
crypto1_destroy(pcs); crypto1_destroy(pcs);
@ -378,8 +429,6 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
if (flags & FLAG_RANDOM_NONCE) { if (flags & FLAG_RANDOM_NONCE) {
nonce = prand(); nonce = prand();
} }
LED_B_OFF();
LED_C_OFF();
cardSTATE = MFEMUL_SELECT1; cardSTATE = MFEMUL_SELECT1;
continue; continue;
} }
@ -395,6 +444,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
if (receivedCmd_len == 2 && (receivedCmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT && receivedCmd[1] == 0x20)) { if (receivedCmd_len == 2 && (receivedCmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT && receivedCmd[1] == 0x20)) {
if (MF_DBGLEVEL >= 4) Dbprintf("SELECT ALL CL1 received"); if (MF_DBGLEVEL >= 4) Dbprintf("SELECT ALL CL1 received");
EmSendPrecompiledCmd(&responses[UIDBCC1]); EmSendPrecompiledCmd(&responses[UIDBCC1]);
FpgaDisableTracing();
break; break;
} }
// select card - 0x93 0x70 ... // select card - 0x93 0x70 ...
@ -403,16 +453,17 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
if (MF_DBGLEVEL >= 4) Dbprintf("SELECT CL1 %02x%02x%02x%02x received",receivedCmd[2],receivedCmd[3],receivedCmd[4],receivedCmd[5]); if (MF_DBGLEVEL >= 4) Dbprintf("SELECT CL1 %02x%02x%02x%02x received",receivedCmd[2],receivedCmd[3],receivedCmd[4],receivedCmd[5]);
if (uid_len == 4) { if (uid_len == 4) {
EmSendPrecompiledCmd(&responses[SAKfinal]); EmSendPrecompiledCmd(&responses[SAKfinal]);
LED_B_ON(); FpgaDisableTracing();
cardSTATE = MFEMUL_WORK; cardSTATE = MFEMUL_WORK;
break; break;
} else if (uid_len == 7) { } else if (uid_len == 7) {
EmSendPrecompiledCmd(&responses[SAK1]); EmSendPrecompiledCmd(&responses[SAK1]);
FpgaDisableTracing();
cardSTATE = MFEMUL_SELECT2; cardSTATE = MFEMUL_SELECT2;
break; break;
} }
} }
cardSTATE_TO_IDLE(); cardSTATE = MFEMUL_IDLE;
break; break;
} }
case MFEMUL_SELECT2:{ case MFEMUL_SELECT2:{
@ -420,6 +471,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
if (receivedCmd_len == 2 && (receivedCmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT_2 && receivedCmd[1] == 0x20)) { if (receivedCmd_len == 2 && (receivedCmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT_2 && receivedCmd[1] == 0x20)) {
if (MF_DBGLEVEL >= 4) Dbprintf("SELECT ALL CL2 received"); if (MF_DBGLEVEL >= 4) Dbprintf("SELECT ALL CL2 received");
EmSendPrecompiledCmd(&responses[UIDBCC2]); EmSendPrecompiledCmd(&responses[UIDBCC2]);
FpgaDisableTracing();
break; break;
} }
// select cl2 card - 0x95 0x70 xxxxxxxxxxxx // select cl2 card - 0x95 0x70 xxxxxxxxxxxx
@ -428,16 +480,17 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
if (uid_len == 7) { if (uid_len == 7) {
if (MF_DBGLEVEL >= 4) Dbprintf("SELECT CL2 %02x%02x%02x%02x received",receivedCmd[2],receivedCmd[3],receivedCmd[4],receivedCmd[5]); if (MF_DBGLEVEL >= 4) Dbprintf("SELECT CL2 %02x%02x%02x%02x received",receivedCmd[2],receivedCmd[3],receivedCmd[4],receivedCmd[5]);
EmSendPrecompiledCmd(&responses[SAKfinal]); EmSendPrecompiledCmd(&responses[SAKfinal]);
LED_B_ON(); FpgaDisableTracing();
cardSTATE = MFEMUL_WORK; cardSTATE = MFEMUL_WORK;
break; break;
} }
} }
cardSTATE_TO_IDLE(); cardSTATE = MFEMUL_IDLE;
break; break;
} }
case MFEMUL_WORK:{ case MFEMUL_WORK:{
if (receivedCmd_len != 4) { // all commands must have exactly 4 bytes if (receivedCmd_len != 4) { // all commands must have exactly 4 bytes
FpgaDisableTracing();
break; break;
} }
bool encrypted_data = (cardAUTHKEY != AUTHKEYNONE) ; bool encrypted_data = (cardAUTHKEY != AUTHKEYNONE) ;
@ -448,35 +501,43 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
memcpy(receivedCmd_dec, receivedCmd, receivedCmd_len); memcpy(receivedCmd_dec, receivedCmd, receivedCmd_len);
} }
if (!HasValidCRC(receivedCmd_dec, receivedCmd_len)) { // all commands must have a valid CRC if (!HasValidCRC(receivedCmd_dec, receivedCmd_len)) { // all commands must have a valid CRC
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_TR));
FpgaDisableTracing();
break; break;
} }
if (receivedCmd_dec[0] == MIFARE_AUTH_KEYA || receivedCmd_dec[0] == MIFARE_AUTH_KEYB) { if (receivedCmd_dec[0] == MIFARE_AUTH_KEYA || receivedCmd_dec[0] == MIFARE_AUTH_KEYB) {
// if authenticating to a block that shouldn't exist - as long as we are not doing the reader attack // if authenticating to a block that shouldn't exist - as long as we are not doing the reader attack
if (receivedCmd_dec[1] >= 16 * 4 && !(flags & FLAG_NR_AR_ATTACK)) { if (receivedCmd_dec[1] >= num_blocks && !(flags & FLAG_NR_AR_ATTACK)) {
//is this the correct response to an auth on a out of range block? marshmellow //is this the correct response to an auth on a out of range block? marshmellow
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
FpgaDisableTracing();
if (MF_DBGLEVEL >= 2) Dbprintf("Reader tried to operate (0x%02x) on out of range block: %d (0x%02x), nacking", receivedCmd_dec[0], receivedCmd_dec[1], receivedCmd_dec[1]); if (MF_DBGLEVEL >= 2) Dbprintf("Reader tried to operate (0x%02x) on out of range block: %d (0x%02x), nacking", receivedCmd_dec[0], receivedCmd_dec[1], receivedCmd_dec[1]);
break; break;
} }
cardAUTHSC = receivedCmd_dec[1] / 4; // received block num cardAUTHSC = BlockToSector(receivedCmd_dec[1]); // received block num
cardAUTHKEY = receivedCmd_dec[0] & 0x01; cardAUTHKEY = receivedCmd_dec[0] & 0x01;
crypto1_destroy(pcs);//Added by martin crypto1_destroy(pcs);//Added by martin
crypto1_create(pcs, emlGetKey(cardAUTHSC, cardAUTHKEY)); crypto1_create(pcs, emlGetKey(cardAUTHSC, cardAUTHKEY));
if (!encrypted_data) { // first authentication if (!encrypted_data) { // first authentication
if (MF_DBGLEVEL >= 4) Dbprintf("Reader authenticating for block %d (0x%02x) with key %d", receivedCmd_dec[1], receivedCmd_dec[1], cardAUTHKEY); if (MF_DBGLEVEL >= 4) Dbprintf("Reader authenticating for block %d (0x%02x) with key %d", receivedCmd_dec[1], receivedCmd_dec[1], cardAUTHKEY);
crypto1_word(pcs, cuid ^ nonce, 0); // Update crypto state crypto1_word(pcs, cuid ^ nonce, 0); // Update crypto state
num_to_bytes(nonce, 4, rAUTH_AT); // Send nonce num_to_bytes(nonce, 4, rAUTH_AT); // Send unencrypted nonce
EmSendCmd(rAUTH_AT, sizeof(rAUTH_AT));
} else { // nested authentication } else { // nested authentication
if (MF_DBGLEVEL >= 4) Dbprintf("Reader doing nested authentication for block %d (0x%02x) with key %d", receivedCmd_dec[1], receivedCmd_dec[1], cardAUTHKEY); if (MF_DBGLEVEL >= 4) Dbprintf("Reader doing nested authentication for block %d (0x%02x) with key %d", receivedCmd_dec[1], receivedCmd_dec[1], cardAUTHKEY);
ans = nonce ^ crypto1_word(pcs, cuid ^ nonce, 0); num_to_bytes(nonce, sizeof(nonce), response);
num_to_bytes(ans, 4, rAUTH_AT); uint8_t pcs_in[4] = {0};
num_to_bytes(cuid ^ nonce, sizeof(nonce), pcs_in);
mf_crypto1_encryptEx(pcs, response, pcs_in, sizeof(nonce), response_par);
EmSendCmdPar(response, sizeof(nonce), response_par); // send encrypted nonce
} }
EmSendCmd(rAUTH_AT, sizeof(rAUTH_AT)); FpgaDisableTracing();
cardSTATE = MFEMUL_AUTH1; cardSTATE = MFEMUL_AUTH1;
break; break;
} }
if (!encrypted_data) { // all other commands must be encrypted (authenticated) if (!encrypted_data) { // all other commands must be encrypted (authenticated)
FpgaDisableTracing();
break; break;
} }
if(receivedCmd_dec[0] == ISO14443A_CMD_READBLOCK if(receivedCmd_dec[0] == ISO14443A_CMD_READBLOCK
@ -485,13 +546,15 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
|| receivedCmd_dec[0] == MIFARE_CMD_DEC || receivedCmd_dec[0] == MIFARE_CMD_DEC
|| receivedCmd_dec[0] == MIFARE_CMD_RESTORE || receivedCmd_dec[0] == MIFARE_CMD_RESTORE
|| receivedCmd_dec[0] == MIFARE_CMD_TRANSFER) { || receivedCmd_dec[0] == MIFARE_CMD_TRANSFER) {
if (receivedCmd_dec[1] >= 16 * 4) { if (receivedCmd_dec[1] >= num_blocks) {
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
FpgaDisableTracing();
if (MF_DBGLEVEL >= 2) Dbprintf("Reader tried to operate (0x%02x) on out of range block: %d (0x%02x), nacking",receivedCmd_dec[0],receivedCmd_dec[1],receivedCmd_dec[1]); if (MF_DBGLEVEL >= 2) Dbprintf("Reader tried to operate (0x%02x) on out of range block: %d (0x%02x), nacking",receivedCmd_dec[0],receivedCmd_dec[1],receivedCmd_dec[1]);
break; break;
} }
if (receivedCmd_dec[1] / 4 != cardAUTHSC) { if (BlockToSector(receivedCmd_dec[1]) != cardAUTHSC) {
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
FpgaDisableTracing();
if (MF_DBGLEVEL >= 2) Dbprintf("Reader tried to operate (0x%02x) on block (0x%02x) not authenticated for (0x%02x), nacking",receivedCmd_dec[0],receivedCmd_dec[1],cardAUTHSC); if (MF_DBGLEVEL >= 2) Dbprintf("Reader tried to operate (0x%02x) on block (0x%02x) not authenticated for (0x%02x), nacking",receivedCmd_dec[0],receivedCmd_dec[1],cardAUTHSC);
break; break;
} }
@ -518,6 +581,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
AppendCrc14443a(response, 16); AppendCrc14443a(response, 16);
mf_crypto1_encrypt(pcs, response, 18, response_par); mf_crypto1_encrypt(pcs, response, 18, response_par);
EmSendCmdPar(response, 18, response_par); EmSendCmdPar(response, 18, response_par);
FpgaDisableTracing();
numReads++; numReads++;
if(exitAfterNReads > 0 && numReads == exitAfterNReads) { if(exitAfterNReads > 0 && numReads == exitAfterNReads) {
Dbprintf("%d reads done, exiting", numReads); Dbprintf("%d reads done, exiting", numReads);
@ -529,6 +593,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
uint8_t blockNo = receivedCmd_dec[1]; uint8_t blockNo = receivedCmd_dec[1];
if (MF_DBGLEVEL >= 4) Dbprintf("RECV 0xA0 write block %d (%02x)", blockNo, blockNo); if (MF_DBGLEVEL >= 4) Dbprintf("RECV 0xA0 write block %d (%02x)", blockNo, blockNo);
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK));
FpgaDisableTracing();
cardWRBL = blockNo; cardWRBL = blockNo;
cardSTATE = MFEMUL_WRITEBL2; cardSTATE = MFEMUL_WRITEBL2;
break; break;
@ -539,9 +604,11 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
if (emlCheckValBl(blockNo)) { if (emlCheckValBl(blockNo)) {
if (MF_DBGLEVEL >= 2) Dbprintf("Reader tried to operate on block, but emlCheckValBl failed, nacking"); if (MF_DBGLEVEL >= 2) Dbprintf("Reader tried to operate on block, but emlCheckValBl failed, nacking");
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
FpgaDisableTracing();
break; break;
} }
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK));
FpgaDisableTracing();
cardWRBL = blockNo; cardWRBL = blockNo;
if (receivedCmd_dec[0] == MIFARE_CMD_INC) if (receivedCmd_dec[0] == MIFARE_CMD_INC)
cardSTATE = MFEMUL_INTREG_INC; cardSTATE = MFEMUL_INTREG_INC;
@ -558,13 +625,12 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
else else
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK));
FpgaDisableTracing();
break; break;
} }
// halt // halt
if (receivedCmd_dec[0] == ISO14443A_CMD_HALT && receivedCmd_dec[1] == 0x00) { if (receivedCmd_dec[0] == ISO14443A_CMD_HALT && receivedCmd_dec[1] == 0x00) {
if (MF_DBGLEVEL >= 4) Dbprintf("--> HALTED."); if (MF_DBGLEVEL >= 4) Dbprintf("--> HALTED.");
LED_B_OFF();
LED_C_OFF();
cardSTATE = MFEMUL_HALTED; cardSTATE = MFEMUL_HALTED;
break; break;
} }
@ -575,7 +641,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
} }
case MFEMUL_AUTH1:{ case MFEMUL_AUTH1:{
if (receivedCmd_len != 8) { if (receivedCmd_len != 8) {
cardSTATE_TO_IDLE(); cardSTATE = MFEMUL_IDLE;
break; break;
} }
@ -658,14 +724,15 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
// reader to do a WUPA after a while. /Martin // reader to do a WUPA after a while. /Martin
// -- which is the correct response. /piwi // -- which is the correct response. /piwi
cardAUTHKEY = AUTHKEYNONE; // not authenticated cardAUTHKEY = AUTHKEYNONE; // not authenticated
cardSTATE_TO_IDLE(); cardSTATE = MFEMUL_IDLE;
break; break;
} }
ans = prng_successor(nonce, 96) ^ crypto1_word(pcs, 0, 0); ans = prng_successor(nonce, 96);
num_to_bytes(ans, 4, rAUTH_AT); num_to_bytes(ans, 4, response);
EmSendCmd(rAUTH_AT, sizeof(rAUTH_AT)); mf_crypto1_encrypt(pcs, response, 4, response_par);
EmSendCmdPar(response, 4, response_par);
FpgaDisableTracing();
if (MF_DBGLEVEL >= 4) Dbprintf("AUTH COMPLETED for sector %d with key %c.", cardAUTHSC, cardAUTHKEY == AUTHKEYA ? 'A' : 'B'); if (MF_DBGLEVEL >= 4) Dbprintf("AUTH COMPLETED for sector %d with key %c.", cardAUTHSC, cardAUTHKEY == AUTHKEYA ? 'A' : 'B');
LED_C_ON();
cardSTATE = MFEMUL_WORK; cardSTATE = MFEMUL_WORK;
break; break;
} }
@ -691,11 +758,12 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
} }
emlSetMem(receivedCmd_dec, cardWRBL, 1); emlSetMem(receivedCmd_dec, cardWRBL, 1);
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK)); // always ACK? EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK)); // always ACK?
FpgaDisableTracing();
cardSTATE = MFEMUL_WORK; cardSTATE = MFEMUL_WORK;
break; break;
} }
} }
cardSTATE_TO_IDLE(); cardSTATE = MFEMUL_IDLE;
break; break;
} }
case MFEMUL_INTREG_INC:{ case MFEMUL_INTREG_INC:{
@ -703,7 +771,8 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
mf_crypto1_decryptEx(pcs, receivedCmd, receivedCmd_len, (uint8_t*)&ans); mf_crypto1_decryptEx(pcs, receivedCmd, receivedCmd_len, (uint8_t*)&ans);
if (emlGetValBl(&cardINTREG, &cardINTBLOCK, cardWRBL)) { if (emlGetValBl(&cardINTREG, &cardINTBLOCK, cardWRBL)) {
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
cardSTATE_TO_IDLE(); FpgaDisableTracing();
cardSTATE = MFEMUL_IDLE;
break; break;
} }
cardINTREG = cardINTREG + ans; cardINTREG = cardINTREG + ans;
@ -716,7 +785,8 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
mf_crypto1_decryptEx(pcs, receivedCmd, receivedCmd_len, (uint8_t*)&ans); mf_crypto1_decryptEx(pcs, receivedCmd, receivedCmd_len, (uint8_t*)&ans);
if (emlGetValBl(&cardINTREG, &cardINTBLOCK, cardWRBL)) { if (emlGetValBl(&cardINTREG, &cardINTBLOCK, cardWRBL)) {
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
cardSTATE_TO_IDLE(); FpgaDisableTracing();
cardSTATE = MFEMUL_IDLE;
break; break;
} }
} }
@ -728,7 +798,8 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
mf_crypto1_decryptEx(pcs, receivedCmd, receivedCmd_len, (uint8_t*)&ans); mf_crypto1_decryptEx(pcs, receivedCmd, receivedCmd_len, (uint8_t*)&ans);
if (emlGetValBl(&cardINTREG, &cardINTBLOCK, cardWRBL)) { if (emlGetValBl(&cardINTREG, &cardINTBLOCK, cardWRBL)) {
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA)); EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
cardSTATE_TO_IDLE(); FpgaDisableTracing();
cardSTATE = MFEMUL_IDLE;
break; break;
} }
cardSTATE = MFEMUL_WORK; cardSTATE = MFEMUL_WORK;
@ -758,7 +829,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
for ( uint8_t i = ATTACK_KEY_COUNT; i < ATTACK_KEY_COUNT*2; i++) { for ( uint8_t i = ATTACK_KEY_COUNT; i < ATTACK_KEY_COUNT*2; i++) {
if (ar_nr_collected[i] == 2) { 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<ATTACK_KEY_COUNT/2) ? "keyA" : "keyB", ar_nr_resp[i].sector); Dbprintf("Collected two pairs of AR/NR which can be used to extract %s from reader for sector %d:", (i<ATTACK_KEY_COUNT/2) ? "keyA" : "keyB", ar_nr_resp[i].sector);
Dbprintf("../tools/mfkey/mfkey32v2 %08x %08x %08x %08x %08x %08x %08x", Dbprintf("../tools/mfkey/mfkey32 %08x %08x %08x %08x %08x %08x %08x",
ar_nr_resp[i].cuid, //UID ar_nr_resp[i].cuid, //UID
ar_nr_resp[i].nonce, //NT ar_nr_resp[i].nonce, //NT
ar_nr_resp[i].nr, //NR1 ar_nr_resp[i].nr, //NR1
@ -776,4 +847,6 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
//Send the collected ar_nr in the response //Send the collected ar_nr in the response
cmd_send(CMD_ACK, CMD_SIMULATE_MIFARE_CARD, button_pushed, 0, &ar_nr_resp, sizeof(ar_nr_resp)); cmd_send(CMD_ACK, CMD_SIMULATE_MIFARE_CARD, button_pushed, 0, &ar_nr_resp, sizeof(ar_nr_resp));
} }
LED_A_OFF();
} }

2
armsrc/mifaresim.h
View file

@ -15,6 +15,6 @@
#include <stdint.h> #include <stdint.h>
extern void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *datain); extern void MifareSim(uint8_t flags, uint8_t exitAfterNReads, uint8_t cardsize, uint8_t *datain);
#endif #endif

8
armsrc/mifareutil.c
View file

@ -47,14 +47,14 @@ void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){
mf_crypto1_decryptEx(pcs, data, len, data); mf_crypto1_decryptEx(pcs, data, len, data);
} }
void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par) { void mf_crypto1_encryptEx(struct Crypto1State *pcs, uint8_t *data, uint8_t *in, uint16_t len, uint8_t *par) {
uint8_t bt = 0; uint8_t bt = 0;
int i; int i;
par[0] = 0; par[0] = 0;
for (i = 0; i < len; i++) { for (i = 0; i < len; i++) {
bt = data[i]; bt = data[i];
data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i]; data[i] = crypto1_byte(pcs, in==NULL?0x00:in[i], 0) ^ data[i];
if((i&0x0007) == 0) if((i&0x0007) == 0)
par[i>>3] = 0; par[i>>3] = 0;
par[i>>3] |= (((filter(pcs->odd) ^ oddparity8(bt)) & 0x01)<<(7-(i&0x0007))); par[i>>3] |= (((filter(pcs->odd) ^ oddparity8(bt)) & 0x01)<<(7-(i&0x0007)));
@ -62,6 +62,10 @@ void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, u
return; return;
} }
void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par) {
mf_crypto1_encryptEx(pcs, data, NULL, len, par);
}
uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) { uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) {
uint8_t bt = 0; uint8_t bt = 0;
int i; int i;

1
armsrc/mifareutil.h
View file

@ -71,6 +71,7 @@ int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData);
void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *receivedCmd, int len); void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *receivedCmd, int len);
void mf_crypto1_decryptEx(struct Crypto1State *pcs, uint8_t *data_in, int len, uint8_t *data_out); void mf_crypto1_decryptEx(struct Crypto1State *pcs, uint8_t *data_in, int len, uint8_t *data_out);
void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par); void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par);
void mf_crypto1_encryptEx(struct Crypto1State *pcs, uint8_t *data, uint8_t *in, uint16_t len, uint8_t *par);
uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data); uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data);
// Mifare memory structure // Mifare memory structure

77
client/cmdhfmf.c
View file

@ -254,14 +254,14 @@ uint8_t NumBlocksPerSector(uint8_t sectorNo)
} }
static int ParamCardSizeSectors(const char c) { static int ParamCardSizeSectors(const char c) {
int numBlocks = 16; int numSectors = 16;
switch (c) { switch (c) {
case '0' : numBlocks = 5; break; case '0' : numSectors = 5; break;
case '2' : numBlocks = 32; break; case '2' : numSectors = 32; break;
case '4' : numBlocks = 40; break; case '4' : numSectors = 40; break;
default: numBlocks = 16; default: numSectors = 16;
} }
return numBlocks; return numSectors;
} }
static int ParamCardSizeBlocks(const char c) { static int ParamCardSizeBlocks(const char c) {
@ -1421,11 +1421,12 @@ void readerAttack(nonces_t ar_resp[], bool setEmulatorMem, bool doStandardAttack
}*/ }*/
} }
int usage_hf14_mf1ksim(void) { int usage_hf14_mfsim(void) {
PrintAndLog("Usage: hf mf sim h u <uid (8, 14, or 20 hex symbols)> n <numreads> i x"); PrintAndLog("Usage: hf mf sim [h] [*<card memory>] [u <uid (8, 14, or 20 hex symbols)>] [n <numreads>] [i] [x]");
PrintAndLog("options:"); PrintAndLog("options:");
PrintAndLog(" h this help"); PrintAndLog(" h (Optional) this help");
PrintAndLog(" u (Optional) UID 4,7 or 10 bytes. If not specified, the UID 4B from emulator memory will be used"); PrintAndLog(" card memory: 0 - MINI(320 bytes), 1 - 1K, 2 - 2K, 4 - 4K, <other, default> - 1K");
PrintAndLog(" u (Optional) UID 4 or 7 bytes. If not specified, the UID 4B from emulator memory will be used");
PrintAndLog(" n (Optional) Automatically exit simulation after <numreads> blocks have been read by reader. 0 = infinite"); PrintAndLog(" n (Optional) Automatically exit simulation after <numreads> blocks have been read by reader. 0 = infinite");
PrintAndLog(" i (Optional) Interactive, means that console will not be returned until simulation finishes or is aborted"); PrintAndLog(" i (Optional) Interactive, means that console will not be returned until simulation finishes or is aborted");
PrintAndLog(" x (Optional) Crack, performs the 'reader attack', nr/ar attack against a legitimate reader, fishes out the key(s)"); PrintAndLog(" x (Optional) Crack, performs the 'reader attack', nr/ar attack against a legitimate reader, fishes out the key(s)");
@ -1434,21 +1435,20 @@ int usage_hf14_mf1ksim(void) {
PrintAndLog(" r (Optional) Generate random nonces instead of sequential nonces. Standard reader attack won't work with this option, only moebius attack works."); PrintAndLog(" r (Optional) Generate random nonces instead of sequential nonces. Standard reader attack won't work with this option, only moebius attack works.");
PrintAndLog("samples:"); PrintAndLog("samples:");
PrintAndLog(" hf mf sim u 0a0a0a0a"); PrintAndLog(" hf mf sim u 0a0a0a0a");
PrintAndLog(" hf mf sim *4");
PrintAndLog(" hf mf sim u 11223344556677"); PrintAndLog(" hf mf sim u 11223344556677");
PrintAndLog(" hf mf sim u 112233445566778899AA");
PrintAndLog(" hf mf sim f uids.txt"); PrintAndLog(" hf mf sim f uids.txt");
PrintAndLog(" hf mf sim u 0a0a0a0a e"); PrintAndLog(" hf mf sim u 0a0a0a0a e");
return 0; return 0;
} }
int CmdHF14AMf1kSim(const char *Cmd) { int CmdHF14AMfSim(const char *Cmd) {
UsbCommand resp; UsbCommand resp;
uint8_t uid[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; uint8_t uid[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
uint8_t exitAfterNReads = 0; uint8_t exitAfterNReads = 0;
uint8_t flags = 0; uint8_t flags = 0;
int uidlen = 0; int uidlen = 0;
uint8_t pnr = 0;
bool setEmulatorMem = false; bool setEmulatorMem = false;
bool attackFromFile = false; bool attackFromFile = false;
FILE *f; FILE *f;
@ -1459,9 +1459,21 @@ int CmdHF14AMf1kSim(const char *Cmd) {
uint8_t cmdp = 0; uint8_t cmdp = 0;
bool errors = false; bool errors = false;
uint8_t cardsize = '1';
while(param_getchar(Cmd, cmdp) != 0x00) { while(param_getchar(Cmd, cmdp) != 0x00) {
switch(param_getchar(Cmd, cmdp)) { switch(param_getchar(Cmd, cmdp)) {
case '*':
cardsize = param_getchar(Cmd + 1, cmdp);
switch(cardsize) {
case '0':
case '1':
case '2':
case '4': break;
default: cardsize = '1';
}
cmdp++;
break;
case 'e': case 'e':
case 'E': case 'E':
setEmulatorMem = true; setEmulatorMem = true;
@ -1485,7 +1497,7 @@ int CmdHF14AMf1kSim(const char *Cmd) {
break; break;
case 'h': case 'h':
case 'H': case 'H':
return usage_hf14_mf1ksim(); return usage_hf14_mfsim();
case 'i': case 'i':
case 'I': case 'I':
flags |= FLAG_INTERACTIVE; flags |= FLAG_INTERACTIVE;
@ -1493,7 +1505,7 @@ int CmdHF14AMf1kSim(const char *Cmd) {
break; break;
case 'n': case 'n':
case 'N': case 'N':
exitAfterNReads = param_get8(Cmd, pnr+1); exitAfterNReads = param_get8(Cmd, cmdp+1);
cmdp += 2; cmdp += 2;
break; break;
case 'r': case 'r':
@ -1505,10 +1517,9 @@ int CmdHF14AMf1kSim(const char *Cmd) {
case 'U': case 'U':
param_gethex_ex(Cmd, cmdp+1, uid, &uidlen); param_gethex_ex(Cmd, cmdp+1, uid, &uidlen);
switch(uidlen) { switch(uidlen) {
case 20: flags = FLAG_10B_UID_IN_DATA; break; //not complete
case 14: flags = FLAG_7B_UID_IN_DATA; break; case 14: flags = FLAG_7B_UID_IN_DATA; break;
case 8: flags = FLAG_4B_UID_IN_DATA; break; case 8: flags = FLAG_4B_UID_IN_DATA; break;
default: return usage_hf14_mf1ksim(); default: return usage_hf14_mfsim();
} }
cmdp += 2; cmdp += 2;
break; break;
@ -1525,7 +1536,7 @@ int CmdHF14AMf1kSim(const char *Cmd) {
if(errors) break; if(errors) break;
} }
//Validations //Validations
if(errors) return usage_hf14_mf1ksim(); if(errors) return usage_hf14_mfsim();
//get uid from file //get uid from file
if (attackFromFile) { if (attackFromFile) {
@ -1565,13 +1576,18 @@ int CmdHF14AMf1kSim(const char *Cmd) {
sscanf(&buf[i], "%02x", (unsigned int *)&uid[i / 2]); sscanf(&buf[i], "%02x", (unsigned int *)&uid[i / 2]);
} }
PrintAndLog("mf 1k sim uid: %s, numreads:%d, flags:%d (0x%02x) - press button to abort", PrintAndLog("mf sim cardsize: %s, uid: %s, numreads:%d, flags:%d (0x%02x) - press button to abort",
cardsize == '0' ? "Mini" :
cardsize == '2' ? "2K" :
cardsize == '4' ? "4K" : "1K",
flags & FLAG_4B_UID_IN_DATA ? sprint_hex(uid,4): flags & FLAG_4B_UID_IN_DATA ? sprint_hex(uid,4):
flags & FLAG_7B_UID_IN_DATA ? sprint_hex(uid,7): flags & FLAG_7B_UID_IN_DATA ? sprint_hex(uid,7):
flags & FLAG_10B_UID_IN_DATA ? sprint_hex(uid,10): "N/A" flags & FLAG_10B_UID_IN_DATA ? sprint_hex(uid,10): "N/A",
, exitAfterNReads, flags, flags); exitAfterNReads,
flags,
flags);
UsbCommand c = {CMD_SIMULATE_MIFARE_CARD, {flags, exitAfterNReads,0}}; UsbCommand c = {CMD_SIMULATE_MIFARE_CARD, {flags, exitAfterNReads, cardsize}};
memcpy(c.d.asBytes, uid, sizeof(uid)); memcpy(c.d.asBytes, uid, sizeof(uid));
clearCommandBuffer(); clearCommandBuffer();
SendCommand(&c); SendCommand(&c);
@ -1595,13 +1611,18 @@ int CmdHF14AMf1kSim(const char *Cmd) {
fclose(f); fclose(f);
} else { //not from file } else { //not from file
PrintAndLog("mf 1k sim uid: %s, numreads:%d, flags:%d (0x%02x) ", PrintAndLog("mf sim cardsize: %s, uid: %s, numreads:%d, flags:%d (0x%02x) ",
cardsize == '0' ? "Mini" :
cardsize == '2' ? "2K" :
cardsize == '4' ? "4K" : "1K",
flags & FLAG_4B_UID_IN_DATA ? sprint_hex(uid,4): flags & FLAG_4B_UID_IN_DATA ? sprint_hex(uid,4):
flags & FLAG_7B_UID_IN_DATA ? sprint_hex(uid,7): flags & FLAG_7B_UID_IN_DATA ? sprint_hex(uid,7):
flags & FLAG_10B_UID_IN_DATA ? sprint_hex(uid,10): "N/A" flags & FLAG_10B_UID_IN_DATA ? sprint_hex(uid,10): "N/A",
, exitAfterNReads, flags, flags); exitAfterNReads,
flags,
flags);
UsbCommand c = {CMD_SIMULATE_MIFARE_CARD, {flags, exitAfterNReads,0}}; UsbCommand c = {CMD_SIMULATE_MIFARE_CARD, {flags, exitAfterNReads, cardsize}};
memcpy(c.d.asBytes, uid, sizeof(uid)); memcpy(c.d.asBytes, uid, sizeof(uid));
clearCommandBuffer(); clearCommandBuffer();
SendCommand(&c); SendCommand(&c);
@ -2925,8 +2946,8 @@ static command_t CommandTable[] =
{"hardnested", CmdHF14AMfNestedHard, 0, "Nested attack for hardened Mifare cards"}, {"hardnested", CmdHF14AMfNestedHard, 0, "Nested attack for hardened Mifare cards"},
{"nested", CmdHF14AMfNested, 0, "Test nested authentication"}, {"nested", CmdHF14AMfNested, 0, "Test nested authentication"},
{"sniff", CmdHF14AMfSniff, 0, "Sniff card-reader communication"}, {"sniff", CmdHF14AMfSniff, 0, "Sniff card-reader communication"},
{"sim", CmdHF14AMf1kSim, 0, "Simulate MIFARE card"}, {"sim", CmdHF14AMfSim, 0, "Simulate MIFARE card"},
{"eclr", CmdHF14AMfEClear, 0, "Clear simulator memory block"}, {"eclr", CmdHF14AMfEClear, 0, "Clear simulator memory"},
{"eget", CmdHF14AMfEGet, 0, "Get simulator memory block"}, {"eget", CmdHF14AMfEGet, 0, "Get simulator memory block"},
{"eset", CmdHF14AMfESet, 0, "Set simulator memory block"}, {"eset", CmdHF14AMfESet, 0, "Set simulator memory block"},
{"eload", CmdHF14AMfELoad, 0, "Load from file emul dump"}, {"eload", CmdHF14AMfELoad, 0, "Load from file emul dump"},