Not sure what has changed in the Proxmark firmware, but not quite working the same.
hf iclass dump, sometimes does not accurately get the CSN and CC used for Authentication.
Other times it fails to execute the procedure to dump the card, or a correct MAC is diagnosed
as authentication failure.
However, if a MAC is corrected calculated, card contents ca be dumped with hf iclass replay <MAC>
It could be down to the antenna? as I am Using the RyscCorp HF Antenna.
Requires further testing!
SnoopIClass();
break;
case CMD_SIMULATE_TAG_ICLASS:
- SimulateIClass(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+ SimulateIClass(c->arg[0], c->d.asBytes);
break;
case CMD_READER_ICLASS:
ReaderIClass(c->arg[0]);
break;
+ case CMD_READER_ICLASS_REPLAY:
+ ReaderIClass_Replay(c->arg[0], c->d.asBytes);
+ break;
+ case CMD_ICLASS_ISO14443A_GETPUBLIC:
+ IClass_iso14443A_GetPublic(c->arg[0]);
+ break;
#endif
case CMD_SIMULATE_TAG_HF_LISTEN:
/// iclass.h
void RAMFUNC SnoopIClass(void);
-void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain);
+void SimulateIClass(uint8_t arg0, uint8_t *datain);
void ReaderIClass(uint8_t arg0);
+void ReaderIClass_Replay(uint8_t arg0,uint8_t *MAC);
+void IClass_iso14443A_GetPublic(uint8_t arg0);
//int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived);
+
// hitag2.h
void SnoopHitag(uint32_t type);
void SimulateHitagTag(bool tag_mem_supplied, byte_t* data);
#include "util.h"
#include "string.h"
#include "common.h"
+#include "cmd.h"
// Needed for CRC in emulation mode;
// same construction as in ISO 14443;
// different initial value (CRC_ICLASS)
#include "iso14443crc.h"
+#include "iso15693tools.h"
static int timeout = 4096;
+// CARD TO READER
+// Sequence D: 11110000 modulation with subcarrier during first half
+// Sequence E: 00001111 modulation with subcarrier during second half
+// Sequence F: 00000000 no modulation with subcarrier
+// READER TO CARD
+// Sequence X: 00001100 drop after half a period
+// Sequence Y: 00000000 no drop
+// Sequence Z: 11000000 drop at start
+#define SEC_X 0x0c
+#define SEC_Y 0x00
+#define SEC_Z 0xc0
static int SendIClassAnswer(uint8_t *resp, int respLen, int delay);
//-----------------------------------------------------------------------------
void RAMFUNC SnoopIClass(void)
{
-
+// DEFINED ABOVE
+// #define RECV_CMD_OFFSET 3032
+// #define RECV_RES_OFFSET 3096
+// #define DMA_BUFFER_OFFSET 3160
+// #define DMA_BUFFER_SIZE 4096
+// #define TRACE_SIZE 3000
// We won't start recording the frames that we acquire until we trigger;
// a good trigger condition to get started is probably when we see a
// The command (reader -> tag) that we're receiving.
// The length of a received command will in most cases be no more than 18 bytes.
// So 32 should be enough!
- uint8_t *readerToTagCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
+ uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
// The response (tag -> reader) that we're receiving.
- uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RES_OFFSET);
+ uint8_t *receivedResponse = (((uint8_t *)BigBuf) + RECV_RES_OFFSET);
- FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
-
+ // As we receive stuff, we copy it from receivedCmd or receivedResponse
+ // into trace, along with its length and other annotations.
+ //uint8_t *trace = (uint8_t *)BigBuf;
+
// reset traceLen to 0
iso14a_set_tracing(TRUE);
iso14a_clear_trace();
int samples = 0;
rsamples = 0;
+ memset(trace, 0x44, RECV_CMD_OFFSET);
+
// Set up the demodulator for tag -> reader responses.
- Demod.output = tagToReaderResponse;
+ Demod.output = receivedResponse;
Demod.len = 0;
Demod.state = DEMOD_UNSYNCD;
// And the reader -> tag commands
memset(&Uart, 0, sizeof(Uart));
- Uart.output = readerToTagCmd;
+ Uart.output = receivedCmd;
Uart.byteCntMax = 32; // was 100 (greg)////////////////////////////////////////////////////////////////////////
Uart.state = STATE_UNSYNCD;
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_SNIFFER);
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
- uint32_t time_0 = GetCountSspClk();
-
-
int div = 0;
//int div2 = 0;
int decbyte = 0;
//samples += 4;
samples += 1;
+ //div2++;
+ //if(div2 > 3) {
+ //div2 = 0;
+ //decbyte ^= ((smpl & 0x01) << (3 - div));
+ //decbyte ^= (((smpl & 0x01) | ((smpl & 0x02) >> 1)) << (3 - div)); // better already...
+ //decbyte ^= (((smpl & 0x01) | ((smpl & 0x02) >> 1) | ((smpl & 0x04) >> 2)) << (3 - div)); // even better...
if(smpl & 0xF) {
decbyte ^= (1 << (3 - div));
}
+ //decbyte ^= (MajorityNibble[(smpl & 0x0F)] << (3 - div));
// FOR READER SIDE COMMUMICATION...
-
+ //decbyte ^= ((smpl & 0x10) << (3 - div));
decbyter <<= 2;
decbyter ^= (smpl & 0x30);
if(OutOfNDecoding((smpl & 0xF0) >> 4)) {
rsamples = samples - Uart.samples;
LED_C_ON();
-
- //if(!LogTrace(Uart.output,Uart.byteCnt, rsamples, Uart.parityBits,TRUE)) break;
- //if(!LogTrace(NULL, 0, Uart.endTime*16 - DELAY_READER_AIR2ARM_AS_SNIFFER, 0, TRUE)) break;
- if(tracing)
- {
- LogTrace(Uart.output,Uart.byteCnt, (GetCountSspClk()-time_0) << 4, Uart.parityBits,TRUE);
- LogTrace(NULL, 0, (GetCountSspClk()-time_0) << 4, 0, TRUE);
- }
-
-
- /* And ready to receive another command. */
+ //if(triggered) {
+ trace[traceLen++] = ((rsamples >> 0) & 0xff);
+ trace[traceLen++] = ((rsamples >> 8) & 0xff);
+ trace[traceLen++] = ((rsamples >> 16) & 0xff);
+ trace[traceLen++] = ((rsamples >> 24) & 0xff);
+ trace[traceLen++] = ((Uart.parityBits >> 0) & 0xff);
+ trace[traceLen++] = ((Uart.parityBits >> 8) & 0xff);
+ trace[traceLen++] = ((Uart.parityBits >> 16) & 0xff);
+ trace[traceLen++] = ((Uart.parityBits >> 24) & 0xff);
+ trace[traceLen++] = Uart.byteCnt;
+ memcpy(trace+traceLen, receivedCmd, Uart.byteCnt);
+ traceLen += Uart.byteCnt;
+ if(traceLen > TRACE_SIZE) break;
+ //}
+ /* And ready to receive another command. */
Uart.state = STATE_UNSYNCD;
/* And also reset the demod code, which might have been */
/* false-triggered by the commands from the reader. */
rsamples = samples - Demod.samples;
LED_B_ON();
- if(tracing)
- {
- LogTrace(Demod.output,Demod.len, (GetCountSspClk()-time_0) << 4 , Demod.parityBits,FALSE);
- LogTrace(NULL, 0, (GetCountSspClk()-time_0) << 4, 0, FALSE);
- }
-
+ // timestamp, as a count of samples
+ trace[traceLen++] = ((rsamples >> 0) & 0xff);
+ trace[traceLen++] = ((rsamples >> 8) & 0xff);
+ trace[traceLen++] = ((rsamples >> 16) & 0xff);
+ trace[traceLen++] = 0x80 | ((rsamples >> 24) & 0xff);
+ trace[traceLen++] = ((Demod.parityBits >> 0) & 0xff);
+ trace[traceLen++] = ((Demod.parityBits >> 8) & 0xff);
+ trace[traceLen++] = ((Demod.parityBits >> 16) & 0xff);
+ trace[traceLen++] = ((Demod.parityBits >> 24) & 0xff);
+ // length
+ trace[traceLen++] = Demod.len;
+ memcpy(trace+traceLen, receivedResponse, Demod.len);
+ traceLen += Demod.len;
+ if(traceLen > TRACE_SIZE) break;
+
+ //triggered = TRUE;
// And ready to receive another response.
memset(&Demod, 0, sizeof(Demod));
- Demod.output = tagToReaderResponse;
+ Demod.output = receivedResponse;
Demod.state = DEMOD_UNSYNCD;
LED_C_OFF();
}
//-----------------------------------------------------------------------------
static void CodeIClassTagAnswer(const uint8_t *cmd, int len)
{
- //So far a dummy implementation, not used
- //int lastProxToAirDuration =0;
int i;
ToSendReset();
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0x00;
- ToSend[++ToSendMax] = 0xff;//Proxtoair duration starts here
+ ToSend[++ToSendMax] = 0xff;
ToSend[++ToSendMax] = 0xff;
ToSend[++ToSendMax] = 0xff;
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0xff;
ToSend[++ToSendMax] = 0xff;
- ToSend[++ToSendMax] = 0xff;
+ ToSend[++ToSendMax] = 0xff;
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0x00;
- //lastProxToAirDuration = 8*ToSendMax - 3*8 - 3*8;//Not counting zeroes in the beginning or end
-
// Convert from last byte pos to length
ToSendMax++;
}
// Only SOF
static void CodeIClassTagSOF()
{
- //So far a dummy implementation, not used
- //int lastProxToAirDuration =0;
-
ToSendReset();
+
// Send SOF
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0xff;
ToSend[++ToSendMax] = 0x00;
ToSend[++ToSendMax] = 0xff;
-
-// lastProxToAirDuration = 8*ToSendMax - 3*8;//Not counting zeroes in the beginning
-
// Convert from last byte pos to length
ToSendMax++;
}
-int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf);
-/**
- * @brief SimulateIClass simulates an iClass card.
- * @param arg0 type of simulation
- * - 0 uses the first 8 bytes in usb data as CSN
- * - 2 "dismantling iclass"-attack. This mode iterates through all CSN's specified
- * in the usb data. This mode collects MAC from the reader, in order to do an offline
- * attack on the keys. For more info, see "dismantling iclass" and proxclone.com.
- * - Other : Uses the default CSN (031fec8af7ff12e0)
- * @param arg1 - number of CSN's contained in datain (applicable for mode 2 only)
- * @param arg2
- * @param datain
- */
-void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain)
-{
- uint32_t simType = arg0;
- uint32_t numberOfCSNS = arg1;
- FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
-
- // Enable and clear the trace
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
-
- uint8_t csn_crc[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 };
- if(simType == 0) {
- // Use the CSN from commandline
- memcpy(csn_crc, datain, 8);
- doIClassSimulation(csn_crc,0,NULL);
- }else if(simType == 1)
- {
- doIClassSimulation(csn_crc,0,NULL);
- }
- else if(simType == 2)
- {
-
- uint8_t mac_responses[64] = { 0 };
- Dbprintf("Going into attack mode");
- // In this mode, a number of csns are within datain. We'll simulate each one, one at a time
- // in order to collect MAC's from the reader. This can later be used in an offlne-attack
- // in order to obtain the keys, as in the "dismantling iclass"-paper.
- int i = 0;
- for( ; i < numberOfCSNS && i*8+8 < USB_CMD_DATA_SIZE; i++)
- {
- // The usb data is 512 bytes, fitting 65 8-byte CSNs in there.
-
- memcpy(csn_crc, datain+(i*8), 8);
- if(doIClassSimulation(csn_crc,1,mac_responses))
- {
- return; // Button pressed
- }
- }
- cmd_send(CMD_ACK,CMD_SIMULATE_TAG_ICLASS,i,0,mac_responses,i*8);
-
- }
- else{
- // We may want a mode here where we hardcode the csns to use (from proxclone).
- // That will speed things up a little, but not required just yet.
- Dbprintf("The mode is not implemented, reserved for future use");
- }
- Dbprintf("Done...");
-}
-/**
- * @brief Does the actual simulation
- * @param csn - csn to use
- * @param breakAfterMacReceived if true, returns after reader MAC has been received.
- */
-int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf)
+//-----------------------------------------------------------------------------
+// Simulate iClass Card
+// Only CSN (Card Serial Number)
+//
+//-----------------------------------------------------------------------------
+void SimulateIClass(uint8_t arg0, uint8_t *datain)
{
+ uint8_t simType = arg0;
+ // Enable and clear the trace
+ tracing = TRUE;
+ traceLen = 0;
+ memset(trace, 0x44, TRACE_SIZE);
// CSN followed by two CRC bytes
uint8_t response2[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
- uint8_t response3[] = { 0,0,0,0,0,0,0,0,0,0};
- memcpy(response3,csn,sizeof(response3));
- Dbprintf("Simulating CSN %02x%02x%02x%02x%02x%02x%02x%02x",csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
+ uint8_t response3[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 };
+
// e-Purse
uint8_t response4[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ if(simType == 0) {
+ // Use the CSN from commandline
+ memcpy(response3, datain, 8);
+ }
+
// Construct anticollision-CSN
rotateCSN(response3,response2);
ComputeCrc14443(CRC_ICLASS, response2, 8, &response2[8], &response2[9]);
ComputeCrc14443(CRC_ICLASS, response3, 8, &response3[8], &response3[9]);
- int exitLoop = 0;
// Reader 0a
// Tag 0f
// Reader 0c
int resp4Len;
// + 1720..
- uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
+ uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
memset(receivedCmd, 0x44, RECV_CMD_SIZE);
int len;
CodeIClassTagAnswer(response4, sizeof(response4));
memcpy(resp4, ToSend, ToSendMax); resp4Len = ToSendMax;
-
- // Start from off (no field generated)
- //FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- //SpinDelay(200);
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN);
- SpinDelay(100);
- StartCountSspClk();
// We need to listen to the high-frequency, peak-detected path.
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
FpgaSetupSsc();
// To control where we are in the protocol
int cmdsRecvd = 0;
- uint32_t time_0 = GetCountSspClk();
- uint32_t t2r_time =0;
- uint32_t r2t_time =0;
LED_A_ON();
- bool buttonPressed = false;
-
- /** Hack for testing
- memcpy(reader_mac_buf,csn,8);
- exitLoop = true;
- end hack **/
-
- while(!exitLoop) {
-
+ for(;;) {
LED_B_OFF();
- //Signal tracer
- // Can be used to get a trigger for an oscilloscope..
- LED_C_OFF();
-
if(!GetIClassCommandFromReader(receivedCmd, &len, 100)) {
- buttonPressed = true;
+ DbpString("button press");
break;
}
- r2t_time = GetCountSspClk();
- //Signal tracer
- LED_C_ON();
// Okay, look at the command now.
- if(receivedCmd[0] == 0x0a ) {
+ if(receivedCmd[0] == 0x0a) {
// Reader in anticollission phase
resp = resp1; respLen = resp1Len; //order = 1;
respdata = &sof;
respsize = sizeof(sof);
+ //resp = resp2; respLen = resp2Len; order = 2;
+ //DbpString("Hello request from reader:");
} else if(receivedCmd[0] == 0x0c) {
// Reader asks for anticollission CSN
resp = resp2; respLen = resp2Len; //order = 2;
LED_B_ON();
} else if(receivedCmd[0] == 0x05) {
// Reader random and reader MAC!!!
+ // Lets store this ;-)
+/*
+ Dbprintf(" CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
+ response3[0], response3[1], response3[2],
+ response3[3], response3[4], response3[5],
+ response3[6], response3[7]);
+*/
+ Dbprintf("READER AUTH (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",
+ len,
+ receivedCmd[0], receivedCmd[1], receivedCmd[2],
+ receivedCmd[3], receivedCmd[4], receivedCmd[5],
+ receivedCmd[6], receivedCmd[7], receivedCmd[8]);
+
// Do not respond
// We do not know what to answer, so lets keep quit
resp = resp1; respLen = 0; //order = 5;
respdata = NULL;
respsize = 0;
- if (breakAfterMacReceived){
- // TODO, actually return this to the caller instead of just
- // dbprintf:ing ...
- Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x",csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
- Dbprintf("RDR: (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",len,
- receivedCmd[0], receivedCmd[1], receivedCmd[2],
- receivedCmd[3], receivedCmd[4], receivedCmd[5],
- receivedCmd[6], receivedCmd[7], receivedCmd[8]);
- if (reader_mac_buf != NULL)
- {
- memcpy(reader_mac_buf,receivedCmd+1,8);
- }
- exitLoop = true;
- }
} else if(receivedCmd[0] == 0x00 && len == 1) {
// Reader ends the session
resp = resp1; respLen = 0; //order = 0;
respdata = NULL;
respsize = 0;
} else {
- //#db# Unknown command received from reader (len=5): 26 1 0 f6 a 44 44 44 44
// Never seen this command before
Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x",
len,
respsize = 0;
}
- if(cmdsRecvd > 100) {
- //DbpString("100 commands later...");
- //break;
+ if(cmdsRecvd > 999) {
+ DbpString("1000 commands later...");
+ break;
}
else {
cmdsRecvd++;
if(respLen > 0) {
SendIClassAnswer(resp, respLen, 21);
- t2r_time = GetCountSspClk();
}
-
+
if (tracing) {
- LogTrace(receivedCmd,len, (r2t_time-time_0)<< 4, Uart.parityBits,TRUE);
- LogTrace(NULL,0, (r2t_time-time_0) << 4, 0,TRUE);
-
+ LogTrace(receivedCmd,len, rsamples, Uart.parityBits, TRUE);
if (respdata != NULL) {
- LogTrace(respdata,respsize, (t2r_time-time_0) << 4,SwapBits(GetParity(respdata,respsize),respsize),FALSE);
- LogTrace(NULL,0, (t2r_time-time_0) << 4,0,FALSE);
-
-
+ LogTrace(respdata,respsize, rsamples, SwapBits(GetParity(respdata,respsize),respsize), FALSE);
}
- if(!tracing) {
+ if(traceLen > TRACE_SIZE) {
DbpString("Trace full");
- //break;
+ break;
}
-
}
+
memset(receivedCmd, 0x44, RECV_CMD_SIZE);
}
- //Dbprintf("%x", cmdsRecvd);
+ Dbprintf("%x", cmdsRecvd);
LED_A_OFF();
LED_B_OFF();
- if(buttonPressed)
- {
- DbpString("Button pressed");
- }
- return buttonPressed;
}
static int SendIClassAnswer(uint8_t *resp, int respLen, int delay)
{
- int i = 0, d=0;//, u = 0, d = 0;
+ int i = 0, u = 0, d = 0;
uint8_t b = 0;
-
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR|FPGA_HF_SIMULATOR_MODULATE_424K);
-
+ // return 0;
+ // Modulate Manchester
+ // FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD424);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD);
AT91C_BASE_SSC->SSC_THR = 0x00;
FpgaSetupSsc();
- while(!BUTTON_PRESS()) {
- if((AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY)){
- b = AT91C_BASE_SSC->SSC_RHR; (void) b;
+
+ // send cycle
+ for(;;) {
+ if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
+ volatile uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
+ (void)b;
}
- if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)){
- b = 0x00;
+ if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
if(d < delay) {
+ b = 0x00;
d++;
}
- else {
- if( i < respLen){
- b = resp[i];
- //Hack
- //b = 0xAC;
- }
- i++;
+ else if(i >= respLen) {
+ b = 0x00;
+ u++;
+ } else {
+ b = resp[i];
+ u++;
+ if(u > 1) { i++; u = 0; }
}
AT91C_BASE_SSC->SSC_THR = b;
- }
- if (i > respLen +4) break;
+ if(u > 4) break;
+ }
+ if(BUTTON_PRESS()) {
+ break;
+ }
}
return 0;
static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int *wait)
{
int c;
+
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
AT91C_BASE_SSC->SSC_THR = 0x00;
FpgaSetupSsc();
b = cmd[i];
for(j = 0; j < 4; j++) {
for(k = 0; k < 4; k++) {
- if(k == (b & 3)) {
- ToSend[++ToSendMax] = 0x0f;
- }
- else {
- ToSend[++ToSendMax] = 0x00;
- }
+ if(k == (b & 3)) {
+ ToSend[++ToSendMax] = 0x0f;
+ }
+ else {
+ ToSend[++ToSendMax] = 0x00;
+ }
}
b >>= 2;
}
uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
- FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
-
// Reset trace buffer
- memset(trace, 0x44, RECV_CMD_OFFSET);
+ memset(trace, 0x44, RECV_CMD_OFFSET);
traceLen = 0;
// Setup SSC
LED_A_OFF();
}
+void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
+ uint8_t act_all[] = { 0x0a };
+ uint8_t identify[] = { 0x0c };
+ uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ uint8_t readcheck_cc[]= { 0x88, 0x02 };
+ uint8_t check[] = { 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ uint8_t read[] = { 0x0c, 0x00, 0x00, 0x00 };
+
+ uint16_t crc = 0;
+ uint8_t cardsize=0;
+ bool read_success=false;
+ uint8_t mem=0;
+
+ static struct memory_t{
+ int k16;
+ int book;
+ int k2;
+ int lockauth;
+ int keyaccess;
+ } memory;
+
+ uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
+
+ // Reset trace buffer
+ memset(trace, 0x44, RECV_CMD_OFFSET);
+ traceLen = 0;
+
+ // Setup SSC
+ FpgaSetupSsc();
+ // Start from off (no field generated)
+ // Signal field is off with the appropriate LED
+ LED_D_OFF();
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelay(200);
+
+ SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
+
+ // Now give it time to spin up.
+ // Signal field is on with the appropriate LED
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
+ SpinDelay(200);
+
+ LED_A_ON();
+
+ for(int i=0;i<1;i++) {
+
+ if(traceLen > TRACE_SIZE) {
+ DbpString("Trace full");
+ break;
+ }
+
+ if (BUTTON_PRESS()) break;
+
+ // Send act_all
+ ReaderTransmitIClass(act_all, 1);
+ // Card present?
+ if(ReaderReceiveIClass(resp)) {
+ ReaderTransmitIClass(identify, 1);
+ if(ReaderReceiveIClass(resp) == 10) {
+ // Select card
+ memcpy(&select[1],resp,8);
+ ReaderTransmitIClass(select, sizeof(select));
+
+ if(ReaderReceiveIClass(resp) == 10) {
+ Dbprintf(" Selected CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
+ resp[0], resp[1], resp[2],
+ resp[3], resp[4], resp[5],
+ resp[6], resp[7]);
+ }
+ // Card selected
+ Dbprintf("Readcheck on Sector 2");
+ ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc));
+ if(ReaderReceiveIClass(resp) == 8) {
+ Dbprintf(" CC: %02x %02x %02x %02x %02x %02x %02x %02x",
+ resp[0], resp[1], resp[2],
+ resp[3], resp[4], resp[5],
+ resp[6], resp[7]);
+ }else return;
+ Dbprintf("Authenticate");
+ //for now replay captured auth (as cc not updated)
+ memcpy(check+5,MAC,4);
+ Dbprintf(" AA: %02x %02x %02x %02x",
+ check[5], check[6], check[7],check[8]);
+ ReaderTransmitIClass(check, sizeof(check));
+ if(ReaderReceiveIClass(resp) == 4) {
+ Dbprintf(" AR: %02x %02x %02x %02x",
+ resp[0], resp[1], resp[2],resp[3]);
+ }else {
+ Dbprintf("Error: Authentication Fail!");
+ return;
+ }
+ Dbprintf("Dump Contents");
+ //first get configuration block
+ read_success=false;
+ read[1]=1;
+ uint8_t *blockno=&read[1];
+ crc = iclass_crc16((char *)blockno,1);
+ read[2] = crc >> 8;
+ read[3] = crc & 0xff;
+ while(!read_success){
+ ReaderTransmitIClass(read, sizeof(read));
+ if(ReaderReceiveIClass(resp) == 10) {
+ read_success=true;
+ mem=resp[5];
+ memory.k16= (mem & 0x80);
+ memory.book= (mem & 0x20);
+ memory.k2= (mem & 0x8);
+ memory.lockauth= (mem & 0x2);
+ memory.keyaccess= (mem & 0x1);
+
+ }
+ }
+ if (memory.k16){
+ cardsize=255;
+ }else cardsize=32;
+ //then loop around remaining blocks
+ for(uint8_t j=0; j<cardsize; j++){
+ read_success=false;
+ uint8_t *blockno=&j;
+ //crc_data[0]=j;
+ read[1]=j;
+ crc = iclass_crc16((char *)blockno,1);
+ read[2] = crc >> 8;
+ read[3] = crc & 0xff;
+ while(!read_success){
+ ReaderTransmitIClass(read, sizeof(read));
+ if(ReaderReceiveIClass(resp) == 10) {
+ read_success=true;
+ Dbprintf(" %02x: %02x %02x %02x %02x %02x %02x %02x %02x",
+ j, resp[0], resp[1], resp[2],
+ resp[3], resp[4], resp[5],
+ resp[6], resp[7]);
+ }
+ }
+ }
+ }
+ }
+ WDT_HIT();
+ }
+
+ LED_A_OFF();
+}
+
+//1. Create Method to Read sectors/blocks 0,1,2 and Send to client
+void IClass_iso14443A_GetPublic(uint8_t arg0) {
+ uint8_t act_all[] = { 0x0a };
+ uint8_t identify[] = { 0x0c };
+ uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ uint8_t readcheck_cc[]= { 0x88, 0x02 };
+ //uint8_t read[] = { 0x0c, 0x00, 0x00, 0x00 };
+ uint8_t card_data[24]={0};
+
+ //bool read_success=false;
+ uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
+
+ // Reset trace buffer
+ memset(trace, 0x44, RECV_CMD_OFFSET);
+ traceLen = 0;
+
+ // Setup SSC
+ FpgaSetupSsc();
+ // Start from off (no field generated)
+ // Signal field is off with the appropriate LED
+ LED_D_OFF();
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelay(200);
+
+ SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
+
+ // Now give it time to spin up.
+ // Signal field is on with the appropriate LED
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
+ SpinDelay(200);
+
+ LED_A_ON();
+
+ for(int i=0;i<1;i++) {
+
+ if(traceLen > TRACE_SIZE) {
+ DbpString("Trace full");
+ break;
+ }
+
+ if (BUTTON_PRESS()) break;
+
+ // Send act_all
+ ReaderTransmitIClass(act_all, 1);
+ // Card present?
+ if(ReaderReceiveIClass(resp)) {
+ ReaderTransmitIClass(identify, 1);
+ if(ReaderReceiveIClass(resp) == 10) {
+ // Select card
+ memcpy(&select[1],resp,8);
+ ReaderTransmitIClass(select, sizeof(select));
+
+ if(ReaderReceiveIClass(resp) == 10) {
+ Dbprintf(" Selected CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
+ resp[0], resp[1], resp[2],
+ resp[3], resp[4], resp[5],
+ resp[6], resp[7]);
+ }
+ memcpy(card_data,resp,8);
+ // Card selected
+ Dbprintf("Readcheck on Sector 2");
+ ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc));
+ if(ReaderReceiveIClass(resp) == 8) {
+ Dbprintf(" CC: %02x %02x %02x %02x %02x %02x %02x %02x",
+ resp[0], resp[1], resp[2],
+ resp[3], resp[4], resp[5],
+ resp[6], resp[7]);
+ }
+ memcpy(card_data+8,resp,8);
+ //prep to read config block
+ /* read card configuration block
+ while(!read_success){
+ uint8_t sector_config=0x01;
+ memcpy(read+1,§or_config,1);
+ ReaderTransmitIClass(read, sizeof(read));
+ if(ReaderReceiveIClass(resp) == 8) {
+ Dbprintf(" CC: %02x %02x %02x %02x %02x %02x %02x %02x",
+ resp[0], resp[1], resp[2],
+ resp[3], resp[4], resp[5],
+ resp[6], resp[7]);
+ read_success=true;
+ memcpy(card_data+16,resp,8);
+ }
+ }*/
+ }
+ }
+ WDT_HIT();
+ }
+ //Dbprintf("DEBUG: %02x%02x%02x%02x%02x%02x%02x%02x",card_data[0],card_data[1],card_data[2],card_data[3],card_data[4],card_data[5],card_data[6],card_data[7]);
+ //Dbprintf("DEBUG: %02x%02x%02x%02x%02x%02x%02x%02x",card_data[8],card_data[9],card_data[10],card_data[11],card_data[12],card_data[13],card_data[14],card_data[15]);
+ LED_A_OFF();
+ LED_B_ON();
+ //send data back to the client
+ cmd_send(CMD_ACK,0,0,0,card_data,16);
+ LED_B_OFF();
+}
+
+//TODO: Create Write method
CMDSRCS = nonce2key/crapto1.c\
nonce2key/crypto1.c\
nonce2key/nonce2key.c\
+ loclass/cipher.c \
+ loclass/cipherutils.c \
+ loclass/des.c \
+ loclass/ikeys.c \
mifarehost.c\
crc16.c \
iso14443crc.c \
//-----------------------------------------------------------------------------
// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
// Copyright (C) 2011 Gerhard de Koning Gans
+// Copyright (C) 2014 Midnitesnake & Andy Davies
//
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <sys/stat.h>
#include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type
#include "data.h"
//#include "proxusb.h"
#include "cmdhficlass.h"
#include "common.h"
#include "util.h"
-#include "cmdmain.h"
+#include "loclass/des.h"
+#include "loclass/cipherutils.h"
+#include "loclass/cipher.h"
+#include "loclass/ikeys.h"
static int CmdHelp(const char *Cmd);
-int xorbits_8(uint8_t val)
-{
- uint8_t res = val ^ (val >> 1); //1st pass
- res = res ^ (res >> 1); // 2nd pass
- res = res ^ (res >> 2); // 3rd pass
- res = res ^ (res >> 4); // 4th pass
- return res & 1;
-}
-
int CmdHFiClassList(const char *Cmd)
-{
-
- bool ShowWaitCycles = false;
- char param = param_getchar(Cmd, 0);
-
- if (param != 0) {
- PrintAndLog("List data in trace buffer.");
- PrintAndLog("Usage: hf iclass list");
- PrintAndLog("h - help");
- PrintAndLog("sample: hf iclass list");
- return 0;
- }
-
- uint8_t got[1920];
- GetFromBigBuf(got,sizeof(got),0);
- WaitForResponse(CMD_ACK,NULL);
-
- PrintAndLog("Recorded Activity");
- PrintAndLog("");
- PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
- PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
- PrintAndLog("");
- PrintAndLog(" Start | End | Src | Data");
- PrintAndLog("-----------|-----------|-----|--------");
-
- int i;
- uint32_t first_timestamp = 0;
- uint32_t timestamp;
- bool tagToReader;
- uint32_t parityBits;
- uint8_t len;
- uint8_t *frame;
- uint32_t EndOfTransmissionTimestamp = 0;
-
-
- for( i=0; i < 1900;)
- {
- //First 32 bits contain
- // isResponse (1 bit)
- // timestamp (remaining)
- //Then paritybits
- //Then length
- timestamp = *((uint32_t *)(got+i));
- parityBits = *((uint32_t *)(got+i+4));
- len = got[i+8];
- frame = (got+i+9);
- uint32_t next_timestamp = (*((uint32_t *)(got+i+9))) & 0x7fffffff;
-
- tagToReader = timestamp & 0x80000000;
- timestamp &= 0x7fffffff;
-
- if(i==0) {
- first_timestamp = timestamp;
- }
-
- // Break and stick with current result if buffer was not completely full
- if (frame[0] == 0x44 && frame[1] == 0x44 && frame[2] == 0x44 && frame[3] == 0x44) break;
-
- char line[1000] = "";
-
- if(len)//We have some data to display
- {
- int j,oddparity;
-
- for(j = 0; j < len ; j++)
- {
- oddparity = 0x01 ^ xorbits_8(frame[j] & 0xFF);
-
- if (tagToReader && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) {
- sprintf(line+(j*4), "%02x! ", frame[j]);
- } else {
- sprintf(line+(j*4), "%02x ", frame[j]);
- }
- }
- }else
- {
- if (ShowWaitCycles) {
- sprintf(line, "fdt (Frame Delay Time): %d", (next_timestamp - timestamp));
- }
- }
-
- char *crc = "";
-
- if(len > 2)
- {
- uint8_t b1, b2;
- if(!tagToReader && len == 4) {
- // Rough guess that this is a command from the reader
- // For iClass the command byte is not part of the CRC
- ComputeCrc14443(CRC_ICLASS, &frame[1], len-3, &b1, &b2);
- }
- else {
- // For other data.. CRC might not be applicable (UPDATE commands etc.)
- ComputeCrc14443(CRC_ICLASS, frame, len-2, &b1, &b2);
- }
-
- if (b1 != frame[len-2] || b2 != frame[len-1]) {
- crc = (tagToReader & (len < 8)) ? "" : " !crc";
- }
- }
-
- i += (len + 9);
- EndOfTransmissionTimestamp = (*((uint32_t *)(got+i))) & 0x7fffffff;
-
- // Not implemented for iclass on the ARM-side
- //if (!ShowWaitCycles) i += 9;
-
- PrintAndLog(" %9d | %9d | %s | %s %s",
- (timestamp - first_timestamp),
- (EndOfTransmissionTimestamp - first_timestamp),
- (len?(tagToReader ? "Tag" : "Rdr"):" "),
- line, crc);
- }
- return 0;
-}
-
-int CmdHFiClassListOld(const char *Cmd)
{
uint8_t got[1920];
GetFromBigBuf(got,sizeof(got),0);
isResponse = 0;
}
-
int metric = 0;
-
int parityBits = *((uint32_t *)(got+i+4));
// 4 bytes of additional information...
// maximum of 32 additional parity bit information
return 0;
}
-/*void iso14a_set_timeout(uint32_t timeout) {
- UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}};
- SendCommand(&c);
-}*/
-
int CmdHFiClassSnoop(const char *Cmd)
{
UsbCommand c = {CMD_SNOOP_ICLASS};
uint8_t simType = 0;
uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0};
- if (strlen(Cmd)<1) {
- PrintAndLog("Usage: hf iclass sim [0 <CSN>] | x");
- PrintAndLog(" options");
- PrintAndLog(" 0 <CSN> simulate the given CSN");
- PrintAndLog(" 1 simulate default CSN");
- PrintAndLog(" 2 iterate CSNs, gather MACs");
+ if (strlen(Cmd)<2) {
+ PrintAndLog("Usage: hf iclass sim <sim type> <CSN (16 hex symbols)>");
PrintAndLog(" sample: hf iclass sim 0 031FEC8AF7FF12E0");
- PrintAndLog(" sample: hf iclass sim 2");
return 0;
}
simType = param_get8(Cmd, 0);
+ if (param_gethex(Cmd, 1, CSN, 16)) {
+ PrintAndLog("A CSN should consist of 16 HEX symbols");
+ return 1;
+ }
+ PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8));
- if(simType == 0)
- {
- if (param_gethex(Cmd, 1, CSN, 16)) {
- PrintAndLog("A CSN should consist of 16 HEX symbols");
- return 1;
- }
- PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8));
+ UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType}};
+ memcpy(c.d.asBytes, CSN, 8);
+ SendCommand(&c);
- }
- if(simType > 2)
- {
- PrintAndLog("Undefined simptype %d", simType);
- return 1;
- }
- uint8_t numberOfCSNs=0;
-
- if(simType == 2)
- {
- UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,63}};
- UsbCommand resp = {0};
-
- uint8_t csns[64] = {
- 0x00,0x0B,0x0F,0xFF,0xF7,0xFF,0x12,0xE0 ,
- 0x00,0x13,0x94,0x7e,0x76,0xff,0x12,0xe0 ,
- 0x2a,0x99,0xac,0x79,0xec,0xff,0x12,0xe0 ,
- 0x17,0x12,0x01,0xfd,0xf7,0xff,0x12,0xe0 ,
- 0xcd,0x56,0x01,0x7c,0x6f,0xff,0x12,0xe0 ,
- 0x4b,0x5e,0x0b,0x72,0xef,0xff,0x12,0xe0 ,
- 0x00,0x73,0xd8,0x75,0x58,0xff,0x12,0xe0 ,
- 0x0c,0x90,0x32,0xf3,0x5d,0xff,0x12,0xe0 };
-
- memcpy(c.d.asBytes, csns, 64);
-
- SendCommand(&c);
- if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) {
- PrintAndLog("Command timed out");
- return 0;
- }
-
- uint8_t num_mac_responses = resp.arg[1];
- PrintAndLog("Mac responses: %d MACs obtained (should be 8)", num_mac_responses);
-
- size_t datalen = 8*24;
- /*
- * Now, time to dump to file. We'll use this format:
- * <8-byte CSN><8-byte CC><4 byte NR><4 byte MAC>....
- * So, it should wind up as
- * 8 * 24 bytes.
- *
- * The returndata from the pm3 is on the following format
- * <4 byte NR><4 byte MAC>
- * CC are all zeroes, CSN is the same as was sent in
- **/
- void* dump = malloc(datalen);
- memset(dump,0,datalen);//<-- Need zeroes for the CC-field
- uint8_t i = 0;
- for(i = 0 ; i < 8 ; i++)
- {
- memcpy(dump+i*24, csns+i*8,8); //CSN
- //8 zero bytes here...
- //Then comes NR_MAC (eight bytes from the response)
- memcpy(dump+i*24+16,resp.d.asBytes+i*8,8);
-
- }
- /** Now, save to dumpfile **/
- saveFile("iclass_mac_attack", "bin", dump,datalen);
- free(dump);
- }else
- {
- UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,numberOfCSNs}};
- memcpy(c.d.asBytes, CSN, 8);
- SendCommand(&c);
- }
return 0;
}
PrintAndLog("--readertype:%02x", readerType);
UsbCommand c = {CMD_READER_ICLASS, {readerType}};
- //memcpy(c.d.asBytes, CSN, 8);
SendCommand(&c);
- /*UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500);
- if (resp != NULL) {
- uint8_t isOK = resp->arg[0] & 0xff;
+ return 0;
+}
+
+int CmdHFiClassReader_Replay(const char *Cmd)
+{
+ uint8_t readerType = 0;
+ uint8_t MAC[4]={0x00, 0x00, 0x00, 0x00};
+
+ if (strlen(Cmd)<1) {
+ PrintAndLog("Usage: hf iclass replay <MAC>");
+ PrintAndLog(" sample: hf iclass replay 00112233");
+ return 0;
+ }
+
+ if (param_gethex(Cmd, 0, MAC, 8)) {
+ PrintAndLog("MAC must include 8 HEX symbols");
+ return 1;
+ }
+
+ UsbCommand c = {CMD_READER_ICLASS_REPLAY, {readerType}};
+ memcpy(c.d.asBytes, MAC, 4);
+ SendCommand(&c);
+
+ return 0;
+}
+
+int CmdHFiClassReader_Dump(const char *Cmd)
+{
+ uint8_t readerType = 0;
+ uint8_t MAC[4]={0x00,0x00,0x00,0x00};
+ uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ //uint8_t CC_temp[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t result[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+ des_context ctx_enc;
+ uint64_t crypted_id=0;
+
+ if (strlen(Cmd)<1)
+ {
+ //PrintAndLog("Usage: hf iclass dump <Key> <CSN> <CC>");
+ //PrintAndLog(" sample: hf iclass dump 0011223344556677 aabbccddeeffgghh FFFFFFFFFFFFFFFF");
+ PrintAndLog("Usage: hf iclass dump <Key>");
+ PrintAndLog(" sample: hf iclass dump 0011223344556677");
+ return 0;
+ }
+
+ if (param_gethex(Cmd, 0, KEY, 16))
+ {
+ PrintAndLog("KEY must include 16 HEX symbols");
+ return 1;
+ }
+
+ /*if (param_gethex(Cmd, 1, CSN, 16))
+ {
+ PrintAndLog("CSN must include 16 HEX symbols");
+ return 1;
+ }
+ if (param_gethex(Cmd, 2, CC_temp, 16))
+ {
+ PrintAndLog("CC must include 16 HEX symbols");
+ return 1;
+ }*/
+
+ UsbCommand c = {CMD_ICLASS_ISO14443A_GETPUBLIC, {0}};
+ //memcpy(c.d.asBytes, MAC, 4);
+ SendCommand(&c);
+
+ UsbCommand resp;
+ if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
+ uint8_t isOK = resp.arg[0] & 0xff;
+ uint8_t * data = resp.d.asBytes;
+
+ memcpy(CSN,data,8);
+ memcpy(CCNR,data+8,8);
+ PrintAndLog("DEBUG: CSN %s",sprint_hex(CSN,8));
+ PrintAndLog("DEBUG: CC %s",sprint_hex(CCNR,8));
PrintAndLog("isOk:%02x", isOK);
} else {
PrintAndLog("Command execute timeout");
- }*/
+ }
+
+ //memcpy(CCNR,CC_temp,8);
+ des_setkey_enc( &ctx_enc, KEY);
+ des_crypt_ecb(&ctx_enc,CSN,result);
+ PrintAndLog("DES Key: %s",sprint_hex(result,8));
+ uint64_t newz=0;
+ crypted_id = bytes_to_num(result,8);
+ uint64_t x = (crypted_id & 0xFFFF000000000000 );
+ pushbackSixBitByte(&newz, getSixBitByte(crypted_id,0),7);
+ pushbackSixBitByte(&newz, getSixBitByte(crypted_id,1),6);
+ pushbackSixBitByte(&newz, getSixBitByte(crypted_id,2),5);
+ pushbackSixBitByte(&newz, getSixBitByte(crypted_id,3),4);
+ pushbackSixBitByte(&newz, getSixBitByte(crypted_id,4),3);
+ pushbackSixBitByte(&newz, getSixBitByte(crypted_id,5),2);
+ pushbackSixBitByte(&newz, getSixBitByte(crypted_id,6),1);
+ pushbackSixBitByte(&newz, getSixBitByte(crypted_id,7),0);
+ newz|= x;
+ crypted_id=newz;
+ num_to_bytes(crypted_id,8,result);
+ PrintAndLog("DESr Key: %s",sprint_hex(result,8));
+ hash0(crypted_id,div_key);
+ PrintAndLog("Div Key: %s",sprint_hex(div_key,8));
+ calc_iclass_mac(CCNR,12,div_key,MAC);
+
+ UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
+ memcpy(d.d.asBytes, MAC, 4);
+ SendCommand(&d);
return 0;
}
static command_t CommandTable[] =
{
- {"help", CmdHelp, 1, "This help"},
- {"list", CmdHFiClassList, 0, "List iClass history"},
- {"snoop", CmdHFiClassSnoop, 0, "Eavesdrop iClass communication"},
- {"sim", CmdHFiClassSim, 0, "Simulate iClass tag"},
- {"reader", CmdHFiClassReader, 0, "Read an iClass tag"},
+ {"help", CmdHelp, 1, "This help"},
+ {"list", CmdHFiClassList, 0, "List iClass history"},
+ {"snoop", CmdHFiClassSnoop, 0, "Eavesdrop iClass communication"},
+ {"sim", CmdHFiClassSim, 0, "Simulate iClass tag"},
+ {"reader", CmdHFiClassReader, 0, "Read an iClass tag"},
+ {"replay", CmdHFiClassReader_Replay,0, "Read an iClass tag via Reply Attack"},
+ {"dump", CmdHFiClassReader_Dump, 0, "Authenticate and Dump iClass tag"},
{NULL, NULL, 0, NULL}
};
return 0;
}
-/**
- * @brief checks if a file exists
- * @param filename
- * @return
- */
-int fileExists(const char *filename) {
- struct stat st;
- int result = stat(filename, &st);
- return result == 0;
-}
-/**
- * @brief Utility function to save data to a file. This method takes a preferred name, but if that
- * file already exists, it tries with another name until it finds something suitable.
- * E.g. dumpdata-15.txt
- * @param preferredName
- * @param suffix the file suffix. Leave out the ".".
- * @param data The binary data to write to the file
- * @param datalen the length of the data
- * @return 0 for ok, 1 for failz
- */
-int saveFile(const char *preferredName, const char *suffix, const void* data, size_t datalen)
-{
- FILE *f = fopen(preferredName, "wb");
- int size = sizeof(char) * (strlen(preferredName)+strlen(suffix)+5);
- char * fileName = malloc(size);
-
- memset(fileName,0,size);
- int num = 1;
- sprintf(fileName,"%s.%s", preferredName, suffix);
- while(fileExists(fileName))
- {
- sprintf(fileName,"%s-%d.%s", preferredName, num, suffix);
- num++;
- }
- /* We should have a valid filename now, e.g. dumpdata-3.bin */
-
- /*Opening file for writing in binary mode*/
- FILE *fileHandle=fopen(fileName,"wb");
- if(!f) {
- PrintAndLog("Failed to write to file '%s'", fileName);
- return 0;
- }
- fwrite(data, 1, datalen, fileHandle);
- fclose(fileHandle);
- PrintAndLog("Saved data to '%s'", fileName);
-
- free(fileName);
- return 0;
-}
--- /dev/null
+/*****************************************************************************
+ * This file is part of iClassCipher. It is a reconstructon of the cipher engine
+ * used in iClass, and RFID techology.
+ *
+ * The implementation is based on the work performed by
+ * Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
+ * Milosch Meriac in the paper "Dismantling IClass".
+ *
+ * Copyright (C) 2014 Martin Holst Swende
+ *
+ * This is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with IClassCipher. If not, see <http://www.gnu.org/licenses/>.
+ ****************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include "loclass/cipher.h"
+#include "loclass/cipherutils.h"
+#include "loclass/ikeys.h"
+
+uint8_t keytable[] = { 0,0,0,0,0,0,0,0};
+
+/**
+* Definition 2. The feedback function for the top register T : F 16/2 → F 2
+* is defined as
+* T (x 0 x 1 . . . . . . x 15 ) = x 0 ⊕ x 1 ⊕ x 5 ⊕ x 7 ⊕ x 10 ⊕ x 11 ⊕ x 14 ⊕ x 15 .
+**/
+bool T(State state)
+{
+ bool x0 = state.t & 0x8000;
+ bool x1 = state.t & 0x4000;
+ bool x5 = state.t & 0x0400;
+ bool x7 = state.t & 0x0100;
+ bool x10 = state.t & 0x0020;
+ bool x11 = state.t & 0x0010;
+ bool x14 = state.t & 0x0002;
+ bool x15 = state.t & 0x0001;
+ return x0 ^ x1 ^ x5 ^ x7 ^ x10 ^ x11 ^ x14 ^ x15;
+}
+/**
+* Similarly, the feedback function for the bottom register B : F 8/2 → F 2 is defined as
+* B(x 0 x 1 . . . x 7 ) = x 1 ⊕ x 2 ⊕ x 3 ⊕ x 7 .
+**/
+bool B(State state)
+{
+ bool x1 = state.b & 0x40;
+ bool x2 = state.b & 0x20;
+ bool x3 = state.b & 0x10;
+ bool x7 = state.b & 0x01;
+
+ return x1 ^ x2 ^ x3 ^ x7;
+
+}
+
+
+/**
+* Definition 3 (Selection function). The selection function select : F 2 × F 2 ×
+* F 8/2 → F 3/2 is defined as select(x, y, r) = z 0 z 1 z 2 where
+* z 0 = (r 0 ∧ r 2 ) ⊕ (r 1 ∧ r 3 ) ⊕ (r 2 ∨ r 4 )
+* z 1 = (r 0 ∨ r 2 ) ⊕ (r 5 ∨ r 7 ) ⊕ r 1 ⊕ r 6 ⊕ x ⊕ y
+* z 2 = (r 3 ∧ r 5 ) ⊕ (r 4 ∧ r 6 ) ⊕ r 7 ⊕ x
+**/
+uint8_t _select(bool x, bool y, uint8_t r)
+{
+ bool r0 = r >> 7 & 0x1;
+ bool r1 = r >> 6 & 0x1;
+ bool r2 = r >> 5 & 0x1;
+ bool r3 = r >> 4 & 0x1;
+ bool r4 = r >> 3 & 0x1;
+ bool r5 = r >> 2 & 0x1;
+ bool r6 = r >> 1 & 0x1;
+ bool r7 = r & 0x1;
+
+ bool z0 = (r0 & r2) ^ (r1 & ~r3) ^ (r2 | r4);
+ bool z1 = (r0 | r2) ^ ( r5 | r7) ^ r1 ^ r6 ^ x ^ y;
+ bool z2 = (r3 & ~r5) ^ (r4 & r6 ) ^ r7 ^ x;
+
+ // The three bitz z0.. z1 are packed into a uint8_t:
+ // 00000ZZZ
+ //Return value is a uint8_t
+ uint8_t retval = 0;
+ retval |= (z0 << 2) & 4;
+ retval |= (z1 << 1) & 2;
+ retval |= z2 & 1;
+
+ // Return value 0 <= retval <= 7
+ return retval;
+}
+
+/**
+* Definition 4 (Successor state). Let s = l, r, t, b be a cipher state, k ∈ (F 82 ) 8
+* be a key and y ∈ F 2 be the input bit. Then, the successor cipher state s ′ =
+* l ′ , r ′ , t ′ , b ′ is defined as
+* t ′ := (T (t) ⊕ r 0 ⊕ r 4 )t 0 . . . t 14 l ′ := (k [select(T (t),y,r)] ⊕ b ′ ) ⊞ l ⊞ r
+* b ′ := (B(b) ⊕ r 7 )b 0 . . . b 6 r ′ := (k [select(T (t),y,r)] ⊕ b ′ ) ⊞ l
+*
+* @param s - state
+* @param k - array containing 8 bytes
+**/
+State successor(uint8_t* k, State s, bool y)
+{
+ bool r0 = s.r >> 7 & 0x1;
+ bool r4 = s.r >> 3 & 0x1;
+ bool r7 = s.r & 0x1;
+
+ State successor = {0,0,0,0};
+
+ successor.t = s.t >> 1;
+ successor.t |= (T(s) ^ r0 ^ r4) << 15;
+
+ successor.b = s.b >> 1;
+ successor.b |= (B(s) ^ r7) << 7;
+
+ bool Tt = T(s);
+
+ successor.l = ((k[_select(Tt,y,s.r)] ^ successor.b) + s.l+s.r ) & 0xFF;
+ successor.r = ((k[_select(Tt,y,s.r)] ^ successor.b) + s.l ) & 0xFF;
+
+ return successor;
+}
+/**
+* We define the successor function suc which takes a key k ∈ (F 82 ) 8 , a state s and
+* an input y ∈ F 2 and outputs the successor state s ′ . We overload the function suc
+* to multiple bit input x ∈ F n 2 which we define as
+* @param k - array containing 8 bytes
+**/
+State suc(uint8_t* k,State s, BitstreamIn *bitstream)
+{
+ if(bitsLeft(bitstream) == 0)
+ {
+ return s;
+ }
+ bool lastbit = tailBit(bitstream);
+ return successor(k,suc(k,s,bitstream), lastbit);
+}
+
+/**
+* Definition 5 (Output). Define the function output which takes an internal
+* state s =< l, r, t, b > and returns the bit r 5 . We also define the function output
+* on multiple bits input which takes a key k, a state s and an input x ∈ F n 2 as
+* output(k, s, ǫ) = ǫ
+* output(k, s, x 0 . . . x n ) = output(s) · output(k, s ′ , x 1 . . . x n )
+* where s ′ = suc(k, s, x 0 ).
+**/
+void output(uint8_t* k,State s, BitstreamIn* in, BitstreamOut* out)
+{
+ if(bitsLeft(in) == 0)
+ {
+ return;
+ }
+ //printf("bitsleft %d" , bitsLeft(in));
+ //printf(" %0d", s.r >> 2 & 1);
+ pushBit(out,(s.r >> 2) & 1);
+ //Remove first bit
+ uint8_t x0 = headBit(in);
+ State ss = successor(k,s,x0);
+ output(k,ss,in, out);
+}
+
+/**
+* Definition 6 (Initial state). Define the function init which takes as input a
+* key k ∈ (F 82 ) 8 and outputs the initial cipher state s =< l, r, t, b >
+**/
+
+State init(uint8_t* k)
+{
+ State s = {
+ ((k[0] ^ 0x4c) + 0xEC) & 0xFF,// l
+ ((k[0] ^ 0x4c) + 0x21) & 0xFF,// r
+ 0x4c, // b
+ 0xE012 // t
+ };
+ return s;
+}
+void MAC(uint8_t* k, BitstreamIn input, BitstreamOut out)
+{
+ uint8_t zeroes_32[] = {0,0,0,0};
+ BitstreamIn input_32_zeroes = {zeroes_32,sizeof(zeroes_32)*8,0};
+ State initState = suc(k,init(k),&input);
+ output(k,initState,&input_32_zeroes,&out);
+
+}
+
+
+void printarr(char * name, uint8_t* arr, int len)
+{
+ int i ;
+ printf("uint8_t %s[] = {", name);
+ for(i =0 ; i< len ; i++)
+ {
+ printf("0x%02x,",*(arr+i));
+ }
+ printf("};\n");
+}
+
+int testMAC()
+{
+
+ //From the "dismantling.IClass" paper:
+ uint8_t cc_nr[] = {0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0,0,0,0};
+ // But actually, that must be reversed, it's "on-the-wire" data
+ reverse_arraybytes(cc_nr,sizeof(cc_nr));
+
+ //From the paper
+ uint8_t div_key[] = {0xE0,0x33,0xCA,0x41,0x9A,0xEE,0x43,0xF9};
+ uint8_t correct_MAC[] = {0x1d,0x49,0xC9,0xDA};
+
+ BitstreamIn bitstream = {cc_nr,sizeof(cc_nr) * 8,0};
+ uint8_t dest []= {0,0,0,0,0,0,0,0};
+ BitstreamOut out = { dest, sizeof(dest)*8, 0 };
+ MAC(div_key,bitstream, out);
+ //The output MAC must also be reversed
+ reverse_arraybytes(dest, sizeof(dest));
+
+ if(false && memcmp(dest, correct_MAC,4) == 0)
+ {
+ printf("MAC calculation OK!\n");
+
+ }else
+ {
+ printf("MAC calculation failed\n");
+ printarr("Calculated_MAC", dest, 4);
+ printarr("Correct_MAC ", correct_MAC, 4);
+ return 1;
+ }
+ return 0;
+}
+
+int calc_iclass_mac(uint8_t *cc_nr_p, int length, uint8_t *div_key_p, uint8_t *mac)
+{
+ uint8_t *cc_nr;
+ uint8_t div_key[8];
+ cc_nr=(uint8_t*)malloc(length+1);
+ memcpy(cc_nr,cc_nr_p,length);
+ memcpy(div_key,div_key_p,8);
+
+ reverse_arraybytes(cc_nr,length);
+ BitstreamIn bitstream = {cc_nr,length * 8,0};
+ uint8_t dest []= {0,0,0,0,0,0,0,0};
+ BitstreamOut out = { dest, sizeof(dest)*8, 0 };
+ MAC(div_key,bitstream, out);
+ //The output MAC must also be reversed
+ reverse_arraybytes(dest, sizeof(dest));
+
+ printf("Calculated_MAC\t%02x%02x%02x%02x\n", dest[0],dest[1],dest[2],dest[3]);
+ memcpy(mac,dest,4);
+ free(cc_nr);
+ return 1;
+}
\ No newline at end of file
--- /dev/null
+/*****************************************************************************
+ * This file is part of iClassCipher. It is a reconstructon of the cipher engine
+ * used in iClass, and RFID techology.
+ *
+ * The implementation is based on the work performed by
+ * Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
+ * Milosch Meriac in the paper "Dismantling IClass".
+ *
+ * Copyright (C) 2014 Martin Holst Swende
+ *
+ * This is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with IClassCipher. If not, see <http://www.gnu.org/licenses/>.
+ ****************************************************************************/
+
+#ifndef CIPHER_H
+#define CIPHER_H
+#include <stdint.h>
+
+/**
+* Definition 1 (Cipher state). A cipher state of iClass s is an element of F 40/2
+* consisting of the following four components:
+* 1. the left register l = (l 0 . . . l 7 ) ∈ F 8/2 ;
+* 2. the right register r = (r 0 . . . r 7 ) ∈ F 8/2 ;
+* 3. the top register t = (t 0 . . . t 15 ) ∈ F 16/2 .
+* 4. the bottom register b = (b 0 . . . b 7 ) ∈ F 8/2 .
+**/
+typedef struct {
+ uint8_t l;
+ uint8_t r;
+ uint8_t b;
+ uint16_t t;
+} State;
+
+void printarr(char * name, uint8_t* arr, int len);
+int calc_iclass_mac(uint8_t *cc_nr_p, int length, uint8_t *div_key_p, uint8_t *mac);
+
+#endif // CIPHER_H
--- /dev/null
+/*****************************************************************************
+ * This file is part of iClassCipher. It is a reconstructon of the cipher engine
+ * used in iClass, and RFID techology.
+ *
+ * The implementation is based on the work performed by
+ * Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
+ * Milosch Meriac in the paper "Dismantling IClass".
+ *
+ * Copyright (C) 2014 Martin Holst Swende
+ *
+ * This is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with IClassCipher. If not, see <http://www.gnu.org/licenses/>.
+ ****************************************************************************/
+
+#include "cipherutils.h"
+#include "../util.h"
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+/**
+ *
+ * @brief Return and remove the first bit (x0) in the stream : <x0 x1 x2 x3 ... xn >
+ * @param stream
+ * @return
+ */
+bool headBit( BitstreamIn *stream)
+{
+ int bytepos = stream->position >> 3; // divide by 8
+ int bitpos = (stream->position++) & 7; // mask out 00000111
+ return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
+}
+/**
+ * @brief Return and remove the last bit (xn) in the stream: <x0 x1 x2 ... xn>
+ * @param stream
+ * @return
+ */
+bool tailBit( BitstreamIn *stream)
+{
+ int bitpos = stream->numbits -1 - (stream->position++);
+
+ int bytepos= bitpos >> 3;
+ bitpos &= 7;
+ return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
+}
+/**
+ * @brief Pushes bit onto the stream
+ * @param stream
+ * @param bit
+ */
+void pushBit( BitstreamOut* stream, bool bit)
+{
+ int bytepos = stream->position >> 3; // divide by 8
+ int bitpos = stream->position & 7;
+ *(stream->buffer+bytepos) |= (bit & 1) << (7 - bitpos);
+ stream->position++;
+ stream->numbits++;
+}
+
+/**
+ * @brief Pushes the lower six bits onto the stream
+ * as b0 b1 b2 b3 b4 b5 b6
+ * @param stream
+ * @param bits
+ */
+void push6bits( BitstreamOut* stream, uint8_t bits)
+{
+ pushBit(stream, bits & 0x20);
+ pushBit(stream, bits & 0x10);
+ pushBit(stream, bits & 0x08);
+ pushBit(stream, bits & 0x04);
+ pushBit(stream, bits & 0x02);
+ pushBit(stream, bits & 0x01);
+}
+
+/**
+ * @brief bitsLeft
+ * @param stream
+ * @return number of bits left in stream
+ */
+int bitsLeft( BitstreamIn *stream)
+{
+ return stream->numbits - stream->position;
+}
+/**
+ * @brief numBits
+ * @param stream
+ * @return Number of bits stored in stream
+ */
+int numBits(BitstreamOut *stream)
+{
+ return stream->numbits;
+}
+
+uint8_t reversebytes(uint8_t b) {
+ b = (b & 0xF0) >> 4 | (b & 0x0F) << 4;
+ b = (b & 0xCC) >> 2 | (b & 0x33) << 2;
+ b = (b & 0xAA) >> 1 | (b & 0x55) << 1;
+ return b;
+}
+void reverse_arraybytes(uint8_t* arr, size_t len)
+{
+ uint8_t i;
+ for( i =0; i< len ; i++)
+ {
+ arr[i] = reversebytes(arr[i]);
+ }
+}
+
+
+//-----------------------------
+// Code for testing below
+//-----------------------------
+
+
+int testBitStream()
+{
+ uint8_t input [] = {0xDE,0xAD,0xBE,0xEF,0xDE,0xAD,0xBE,0xEF};
+ uint8_t output [] = {0,0,0,0,0,0,0,0};
+ BitstreamIn in = { input, sizeof(input) * 8,0};
+ BitstreamOut out ={ output, 0,0}
+ ;
+ while(bitsLeft(&in) > 0)
+ {
+ pushBit(&out, headBit(&in));
+ //printf("Bits left: %d\n", bitsLeft(&in));
+ //printf("Bits out: %d\n", numBits(&out));
+ }
+ if(memcmp(input, output, sizeof(input)) == 0)
+ {
+ printf("Bitstream test 1 ok\n");
+ }else
+ {
+ printf("Bitstream test 1 failed\n");
+ uint8_t i;
+ for(i = 0 ; i < sizeof(input) ; i++)
+ {
+ printf("IN %02x, OUT %02x\n", input[i], output[i]);
+ }
+ return 1;
+ }
+ return 0;
+}
+
+int testReversedBitstream()
+{
+ uint8_t input [] = {0xDE,0xAD,0xBE,0xEF,0xDE,0xAD,0xBE,0xEF};
+ uint8_t reverse [] = {0,0,0,0,0,0,0,0};
+ uint8_t output [] = {0,0,0,0,0,0,0,0};
+ BitstreamIn in = { input, sizeof(input) * 8,0};
+ BitstreamOut out ={ output, 0,0};
+ BitstreamIn reversed_in ={ reverse, sizeof(input)*8,0};
+ BitstreamOut reversed_out ={ reverse,0 ,0};
+
+ while(bitsLeft(&in) > 0)
+ {
+ pushBit(&reversed_out, tailBit(&in));
+ }
+ while(bitsLeft(&reversed_in) > 0)
+ {
+ pushBit(&out, tailBit(&reversed_in));
+ }
+ if(memcmp(input, output, sizeof(input)) == 0)
+ {
+ printf("Bitstream test 2 ok\n");
+ }else
+ {
+ printf("Bitstream test 2 failed\n");
+ uint8_t i;
+ for(i = 0 ; i < sizeof(input) ; i++)
+ {
+ printf("IN %02x, MIDDLE: %02x, OUT %02x\n", input[i],reverse[i], output[i]);
+ }
+ return 1;
+ }
+ return 0;
+}
+
+
+int testCipherUtils(void)
+{
+ int retval = 0;
+ retval |= testBitStream();
+ retval |= testReversedBitstream();
+ return retval;
+}
--- /dev/null
+/*****************************************************************************
+ * This file is part of iClassCipher. It is a reconstructon of the cipher engine
+ * used in iClass, and RFID techology.
+ *
+ * The implementation is based on the work performed by
+ * Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
+ * Milosch Meriac in the paper "Dismantling IClass".
+ *
+ * Copyright (C) 2014 Martin Holst Swende
+ *
+ * This is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with IClassCipher. If not, see <http://www.gnu.org/licenses/>.
+ ****************************************************************************/
+
+#ifndef CIPHERUTILS_H
+#define CIPHERUTILS_H
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+typedef struct {
+ uint8_t * buffer;
+ uint8_t numbits;
+ uint8_t position;
+} BitstreamIn;
+
+typedef struct {
+ uint8_t * buffer;
+ uint8_t numbits;
+ uint8_t position;
+}BitstreamOut;
+
+bool headBit( BitstreamIn *stream);
+bool tailBit( BitstreamIn *stream);
+void pushBit( BitstreamOut *stream, bool bit);
+int bitsLeft( BitstreamIn *stream);
+bool xorbits_8(uint8_t val);
+bool xorbits_16(uint16_t val);
+int testCipherUtils(void);
+int testMAC();
+void push6bits( BitstreamOut* stream, uint8_t bits);
+void EncryptDES(bool key[56], bool outBlk[64], bool inBlk[64], int verbose) ;
+uint8_t reversebytes(uint8_t b);
+void reverse_arraybytes(uint8_t* arr, size_t len);
+
+#endif // CIPHERUTILS_H
--- /dev/null
+/*
+ * FIPS-46-3 compliant Triple-DES implementation
+ *
+ * Copyright (C) 2006-2014, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * DES, on which TDES is based, was originally designed by Horst Feistel
+ * at IBM in 1974, and was adopted as a standard by NIST (formerly NBS).
+ *
+ * http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf
+ */
+
+//#include "polarssl/config.h"
+#define POLARSSL_DES_C
+
+#if defined(POLARSSL_DES_C)
+
+#include "des.h"
+
+#if defined(POLARSSL_PLATFORM_C)
+#include "polarssl/platform.h"
+#else
+#define polarssl_printf printf
+#endif
+
+#if !defined(POLARSSL_DES_ALT)
+
+/*
+ * 32-bit integer manipulation macros (big endian)
+ */
+#ifndef GET_UINT32_BE
+#define GET_UINT32_BE(n,b,i) \
+{ \
+ (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
+ | ( (uint32_t) (b)[(i) + 1] << 16 ) \
+ | ( (uint32_t) (b)[(i) + 2] << 8 ) \
+ | ( (uint32_t) (b)[(i) + 3] ); \
+}
+#endif
+
+#ifndef PUT_UINT32_BE
+#define PUT_UINT32_BE(n,b,i) \
+{ \
+ (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) ); \
+}
+#endif
+
+/*
+ * Expanded DES S-boxes
+ */
+static const uint32_t SB1[64] =
+{
+ 0x01010400, 0x00000000, 0x00010000, 0x01010404,
+ 0x01010004, 0x00010404, 0x00000004, 0x00010000,
+ 0x00000400, 0x01010400, 0x01010404, 0x00000400,
+ 0x01000404, 0x01010004, 0x01000000, 0x00000004,
+ 0x00000404, 0x01000400, 0x01000400, 0x00010400,
+ 0x00010400, 0x01010000, 0x01010000, 0x01000404,
+ 0x00010004, 0x01000004, 0x01000004, 0x00010004,
+ 0x00000000, 0x00000404, 0x00010404, 0x01000000,
+ 0x00010000, 0x01010404, 0x00000004, 0x01010000,
+ 0x01010400, 0x01000000, 0x01000000, 0x00000400,
+ 0x01010004, 0x00010000, 0x00010400, 0x01000004,
+ 0x00000400, 0x00000004, 0x01000404, 0x00010404,
+ 0x01010404, 0x00010004, 0x01010000, 0x01000404,
+ 0x01000004, 0x00000404, 0x00010404, 0x01010400,
+ 0x00000404, 0x01000400, 0x01000400, 0x00000000,
+ 0x00010004, 0x00010400, 0x00000000, 0x01010004
+};
+
+static const uint32_t SB2[64] =
+{
+ 0x80108020, 0x80008000, 0x00008000, 0x00108020,
+ 0x00100000, 0x00000020, 0x80100020, 0x80008020,
+ 0x80000020, 0x80108020, 0x80108000, 0x80000000,
+ 0x80008000, 0x00100000, 0x00000020, 0x80100020,
+ 0x00108000, 0x00100020, 0x80008020, 0x00000000,
+ 0x80000000, 0x00008000, 0x00108020, 0x80100000,
+ 0x00100020, 0x80000020, 0x00000000, 0x00108000,
+ 0x00008020, 0x80108000, 0x80100000, 0x00008020,
+ 0x00000000, 0x00108020, 0x80100020, 0x00100000,
+ 0x80008020, 0x80100000, 0x80108000, 0x00008000,
+ 0x80100000, 0x80008000, 0x00000020, 0x80108020,
+ 0x00108020, 0x00000020, 0x00008000, 0x80000000,
+ 0x00008020, 0x80108000, 0x00100000, 0x80000020,
+ 0x00100020, 0x80008020, 0x80000020, 0x00100020,
+ 0x00108000, 0x00000000, 0x80008000, 0x00008020,
+ 0x80000000, 0x80100020, 0x80108020, 0x00108000
+};
+
+static const uint32_t SB3[64] =
+{
+ 0x00000208, 0x08020200, 0x00000000, 0x08020008,
+ 0x08000200, 0x00000000, 0x00020208, 0x08000200,
+ 0x00020008, 0x08000008, 0x08000008, 0x00020000,
+ 0x08020208, 0x00020008, 0x08020000, 0x00000208,
+ 0x08000000, 0x00000008, 0x08020200, 0x00000200,
+ 0x00020200, 0x08020000, 0x08020008, 0x00020208,
+ 0x08000208, 0x00020200, 0x00020000, 0x08000208,
+ 0x00000008, 0x08020208, 0x00000200, 0x08000000,
+ 0x08020200, 0x08000000, 0x00020008, 0x00000208,
+ 0x00020000, 0x08020200, 0x08000200, 0x00000000,
+ 0x00000200, 0x00020008, 0x08020208, 0x08000200,
+ 0x08000008, 0x00000200, 0x00000000, 0x08020008,
+ 0x08000208, 0x00020000, 0x08000000, 0x08020208,
+ 0x00000008, 0x00020208, 0x00020200, 0x08000008,
+ 0x08020000, 0x08000208, 0x00000208, 0x08020000,
+ 0x00020208, 0x00000008, 0x08020008, 0x00020200
+};
+
+static const uint32_t SB4[64] =
+{
+ 0x00802001, 0x00002081, 0x00002081, 0x00000080,
+ 0x00802080, 0x00800081, 0x00800001, 0x00002001,
+ 0x00000000, 0x00802000, 0x00802000, 0x00802081,
+ 0x00000081, 0x00000000, 0x00800080, 0x00800001,
+ 0x00000001, 0x00002000, 0x00800000, 0x00802001,
+ 0x00000080, 0x00800000, 0x00002001, 0x00002080,
+ 0x00800081, 0x00000001, 0x00002080, 0x00800080,
+ 0x00002000, 0x00802080, 0x00802081, 0x00000081,
+ 0x00800080, 0x00800001, 0x00802000, 0x00802081,
+ 0x00000081, 0x00000000, 0x00000000, 0x00802000,
+ 0x00002080, 0x00800080, 0x00800081, 0x00000001,
+ 0x00802001, 0x00002081, 0x00002081, 0x00000080,
+ 0x00802081, 0x00000081, 0x00000001, 0x00002000,
+ 0x00800001, 0x00002001, 0x00802080, 0x00800081,
+ 0x00002001, 0x00002080, 0x00800000, 0x00802001,
+ 0x00000080, 0x00800000, 0x00002000, 0x00802080
+};
+
+static const uint32_t SB5[64] =
+{
+ 0x00000100, 0x02080100, 0x02080000, 0x42000100,
+ 0x00080000, 0x00000100, 0x40000000, 0x02080000,
+ 0x40080100, 0x00080000, 0x02000100, 0x40080100,
+ 0x42000100, 0x42080000, 0x00080100, 0x40000000,
+ 0x02000000, 0x40080000, 0x40080000, 0x00000000,
+ 0x40000100, 0x42080100, 0x42080100, 0x02000100,
+ 0x42080000, 0x40000100, 0x00000000, 0x42000000,
+ 0x02080100, 0x02000000, 0x42000000, 0x00080100,
+ 0x00080000, 0x42000100, 0x00000100, 0x02000000,
+ 0x40000000, 0x02080000, 0x42000100, 0x40080100,
+ 0x02000100, 0x40000000, 0x42080000, 0x02080100,
+ 0x40080100, 0x00000100, 0x02000000, 0x42080000,
+ 0x42080100, 0x00080100, 0x42000000, 0x42080100,
+ 0x02080000, 0x00000000, 0x40080000, 0x42000000,
+ 0x00080100, 0x02000100, 0x40000100, 0x00080000,
+ 0x00000000, 0x40080000, 0x02080100, 0x40000100
+};
+
+static const uint32_t SB6[64] =
+{
+ 0x20000010, 0x20400000, 0x00004000, 0x20404010,
+ 0x20400000, 0x00000010, 0x20404010, 0x00400000,
+ 0x20004000, 0x00404010, 0x00400000, 0x20000010,
+ 0x00400010, 0x20004000, 0x20000000, 0x00004010,
+ 0x00000000, 0x00400010, 0x20004010, 0x00004000,
+ 0x00404000, 0x20004010, 0x00000010, 0x20400010,
+ 0x20400010, 0x00000000, 0x00404010, 0x20404000,
+ 0x00004010, 0x00404000, 0x20404000, 0x20000000,
+ 0x20004000, 0x00000010, 0x20400010, 0x00404000,
+ 0x20404010, 0x00400000, 0x00004010, 0x20000010,
+ 0x00400000, 0x20004000, 0x20000000, 0x00004010,
+ 0x20000010, 0x20404010, 0x00404000, 0x20400000,
+ 0x00404010, 0x20404000, 0x00000000, 0x20400010,
+ 0x00000010, 0x00004000, 0x20400000, 0x00404010,
+ 0x00004000, 0x00400010, 0x20004010, 0x00000000,
+ 0x20404000, 0x20000000, 0x00400010, 0x20004010
+};
+
+static const uint32_t SB7[64] =
+{
+ 0x00200000, 0x04200002, 0x04000802, 0x00000000,
+ 0x00000800, 0x04000802, 0x00200802, 0x04200800,
+ 0x04200802, 0x00200000, 0x00000000, 0x04000002,
+ 0x00000002, 0x04000000, 0x04200002, 0x00000802,
+ 0x04000800, 0x00200802, 0x00200002, 0x04000800,
+ 0x04000002, 0x04200000, 0x04200800, 0x00200002,
+ 0x04200000, 0x00000800, 0x00000802, 0x04200802,
+ 0x00200800, 0x00000002, 0x04000000, 0x00200800,
+ 0x04000000, 0x00200800, 0x00200000, 0x04000802,
+ 0x04000802, 0x04200002, 0x04200002, 0x00000002,
+ 0x00200002, 0x04000000, 0x04000800, 0x00200000,
+ 0x04200800, 0x00000802, 0x00200802, 0x04200800,
+ 0x00000802, 0x04000002, 0x04200802, 0x04200000,
+ 0x00200800, 0x00000000, 0x00000002, 0x04200802,
+ 0x00000000, 0x00200802, 0x04200000, 0x00000800,
+ 0x04000002, 0x04000800, 0x00000800, 0x00200002
+};
+
+static const uint32_t SB8[64] =
+{
+ 0x10001040, 0x00001000, 0x00040000, 0x10041040,
+ 0x10000000, 0x10001040, 0x00000040, 0x10000000,
+ 0x00040040, 0x10040000, 0x10041040, 0x00041000,
+ 0x10041000, 0x00041040, 0x00001000, 0x00000040,
+ 0x10040000, 0x10000040, 0x10001000, 0x00001040,
+ 0x00041000, 0x00040040, 0x10040040, 0x10041000,
+ 0x00001040, 0x00000000, 0x00000000, 0x10040040,
+ 0x10000040, 0x10001000, 0x00041040, 0x00040000,
+ 0x00041040, 0x00040000, 0x10041000, 0x00001000,
+ 0x00000040, 0x10040040, 0x00001000, 0x00041040,
+ 0x10001000, 0x00000040, 0x10000040, 0x10040000,
+ 0x10040040, 0x10000000, 0x00040000, 0x10001040,
+ 0x00000000, 0x10041040, 0x00040040, 0x10000040,
+ 0x10040000, 0x10001000, 0x10001040, 0x00000000,
+ 0x10041040, 0x00041000, 0x00041000, 0x00001040,
+ 0x00001040, 0x00040040, 0x10000000, 0x10041000
+};
+
+/*
+ * PC1: left and right halves bit-swap
+ */
+static const uint32_t LHs[16] =
+{
+ 0x00000000, 0x00000001, 0x00000100, 0x00000101,
+ 0x00010000, 0x00010001, 0x00010100, 0x00010101,
+ 0x01000000, 0x01000001, 0x01000100, 0x01000101,
+ 0x01010000, 0x01010001, 0x01010100, 0x01010101
+};
+
+static const uint32_t RHs[16] =
+{
+ 0x00000000, 0x01000000, 0x00010000, 0x01010000,
+ 0x00000100, 0x01000100, 0x00010100, 0x01010100,
+ 0x00000001, 0x01000001, 0x00010001, 0x01010001,
+ 0x00000101, 0x01000101, 0x00010101, 0x01010101,
+};
+
+/*
+ * Initial Permutation macro
+ */
+#define DES_IP(X,Y) \
+{ \
+ T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
+ T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
+ T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
+ T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
+ Y = ((Y << 1) | (Y >> 31)) & 0xFFFFFFFF; \
+ T = (X ^ Y) & 0xAAAAAAAA; Y ^= T; X ^= T; \
+ X = ((X << 1) | (X >> 31)) & 0xFFFFFFFF; \
+}
+
+/*
+ * Final Permutation macro
+ */
+#define DES_FP(X,Y) \
+{ \
+ X = ((X << 31) | (X >> 1)) & 0xFFFFFFFF; \
+ T = (X ^ Y) & 0xAAAAAAAA; X ^= T; Y ^= T; \
+ Y = ((Y << 31) | (Y >> 1)) & 0xFFFFFFFF; \
+ T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
+ T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
+ T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
+ T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
+}
+
+/*
+ * DES round macro
+ */
+#define DES_ROUND(X,Y) \
+{ \
+ T = *SK++ ^ X; \
+ Y ^= SB8[ (T ) & 0x3F ] ^ \
+ SB6[ (T >> 8) & 0x3F ] ^ \
+ SB4[ (T >> 16) & 0x3F ] ^ \
+ SB2[ (T >> 24) & 0x3F ]; \
+ \
+ T = *SK++ ^ ((X << 28) | (X >> 4)); \
+ Y ^= SB7[ (T ) & 0x3F ] ^ \
+ SB5[ (T >> 8) & 0x3F ] ^ \
+ SB3[ (T >> 16) & 0x3F ] ^ \
+ SB1[ (T >> 24) & 0x3F ]; \
+}
+
+#define SWAP(a,b) { uint32_t t = a; a = b; b = t; t = 0; }
+
+static const unsigned char odd_parity_table[128] = { 1, 2, 4, 7, 8,
+ 11, 13, 14, 16, 19, 21, 22, 25, 26, 28, 31, 32, 35, 37, 38, 41, 42, 44,
+ 47, 49, 50, 52, 55, 56, 59, 61, 62, 64, 67, 69, 70, 73, 74, 76, 79, 81,
+ 82, 84, 87, 88, 91, 93, 94, 97, 98, 100, 103, 104, 107, 109, 110, 112,
+ 115, 117, 118, 121, 122, 124, 127, 128, 131, 133, 134, 137, 138, 140,
+ 143, 145, 146, 148, 151, 152, 155, 157, 158, 161, 162, 164, 167, 168,
+ 171, 173, 174, 176, 179, 181, 182, 185, 186, 188, 191, 193, 194, 196,
+ 199, 200, 203, 205, 206, 208, 211, 213, 214, 217, 218, 220, 223, 224,
+ 227, 229, 230, 233, 234, 236, 239, 241, 242, 244, 247, 248, 251, 253,
+ 254 };
+
+void des_key_set_parity( unsigned char key[DES_KEY_SIZE] )
+{
+ int i;
+
+ for( i = 0; i < DES_KEY_SIZE; i++ )
+ key[i] = odd_parity_table[key[i] / 2];
+}
+
+/*
+ * Check the given key's parity, returns 1 on failure, 0 on SUCCESS
+ */
+int des_key_check_key_parity( const unsigned char key[DES_KEY_SIZE] )
+{
+ int i;
+
+ for( i = 0; i < DES_KEY_SIZE; i++ )
+ if ( key[i] != odd_parity_table[key[i] / 2] )
+ return( 1 );
+
+ return( 0 );
+}
+
+/*
+ * Table of weak and semi-weak keys
+ *
+ * Source: http://en.wikipedia.org/wiki/Weak_key
+ *
+ * Weak:
+ * Alternating ones + zeros (0x0101010101010101)
+ * Alternating 'F' + 'E' (0xFEFEFEFEFEFEFEFE)
+ * '0xE0E0E0E0F1F1F1F1'
+ * '0x1F1F1F1F0E0E0E0E'
+ *
+ * Semi-weak:
+ * 0x011F011F010E010E and 0x1F011F010E010E01
+ * 0x01E001E001F101F1 and 0xE001E001F101F101
+ * 0x01FE01FE01FE01FE and 0xFE01FE01FE01FE01
+ * 0x1FE01FE00EF10EF1 and 0xE01FE01FF10EF10E
+ * 0x1FFE1FFE0EFE0EFE and 0xFE1FFE1FFE0EFE0E
+ * 0xE0FEE0FEF1FEF1FE and 0xFEE0FEE0FEF1FEF1
+ *
+ */
+
+#define WEAK_KEY_COUNT 16
+
+static const unsigned char weak_key_table[WEAK_KEY_COUNT][DES_KEY_SIZE] =
+{
+ { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
+ { 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE },
+ { 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E },
+ { 0xE0, 0xE0, 0xE0, 0xE0, 0xF1, 0xF1, 0xF1, 0xF1 },
+
+ { 0x01, 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E },
+ { 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E, 0x01 },
+ { 0x01, 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1 },
+ { 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1, 0x01 },
+ { 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE },
+ { 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01 },
+ { 0x1F, 0xE0, 0x1F, 0xE0, 0x0E, 0xF1, 0x0E, 0xF1 },
+ { 0xE0, 0x1F, 0xE0, 0x1F, 0xF1, 0x0E, 0xF1, 0x0E },
+ { 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E, 0xFE },
+ { 0xFE, 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E },
+ { 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE },
+ { 0xFE, 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1 }
+};
+
+int des_key_check_weak( const unsigned char key[DES_KEY_SIZE] )
+{
+ int i;
+
+ for( i = 0; i < WEAK_KEY_COUNT; i++ )
+ if( memcmp( weak_key_table[i], key, DES_KEY_SIZE) == 0)
+ return( 1 );
+
+ return( 0 );
+}
+
+static void des_setkey( uint32_t SK[32], const unsigned char key[DES_KEY_SIZE] )
+{
+ int i;
+ uint32_t X, Y, T;
+
+ GET_UINT32_BE( X, key, 0 );
+ GET_UINT32_BE( Y, key, 4 );
+
+ /*
+ * Permuted Choice 1
+ */
+ T = ((Y >> 4) ^ X) & 0x0F0F0F0F; X ^= T; Y ^= (T << 4);
+ T = ((Y ) ^ X) & 0x10101010; X ^= T; Y ^= (T );
+
+ X = (LHs[ (X ) & 0xF] << 3) | (LHs[ (X >> 8) & 0xF ] << 2)
+ | (LHs[ (X >> 16) & 0xF] << 1) | (LHs[ (X >> 24) & 0xF ] )
+ | (LHs[ (X >> 5) & 0xF] << 7) | (LHs[ (X >> 13) & 0xF ] << 6)
+ | (LHs[ (X >> 21) & 0xF] << 5) | (LHs[ (X >> 29) & 0xF ] << 4);
+
+ Y = (RHs[ (Y >> 1) & 0xF] << 3) | (RHs[ (Y >> 9) & 0xF ] << 2)
+ | (RHs[ (Y >> 17) & 0xF] << 1) | (RHs[ (Y >> 25) & 0xF ] )
+ | (RHs[ (Y >> 4) & 0xF] << 7) | (RHs[ (Y >> 12) & 0xF ] << 6)
+ | (RHs[ (Y >> 20) & 0xF] << 5) | (RHs[ (Y >> 28) & 0xF ] << 4);
+
+ X &= 0x0FFFFFFF;
+ Y &= 0x0FFFFFFF;
+
+ /*
+ * calculate subkeys
+ */
+ for( i = 0; i < 16; i++ )
+ {
+ if( i < 2 || i == 8 || i == 15 )
+ {
+ X = ((X << 1) | (X >> 27)) & 0x0FFFFFFF;
+ Y = ((Y << 1) | (Y >> 27)) & 0x0FFFFFFF;
+ }
+ else
+ {
+ X = ((X << 2) | (X >> 26)) & 0x0FFFFFFF;
+ Y = ((Y << 2) | (Y >> 26)) & 0x0FFFFFFF;
+ }
+
+ *SK++ = ((X << 4) & 0x24000000) | ((X << 28) & 0x10000000)
+ | ((X << 14) & 0x08000000) | ((X << 18) & 0x02080000)
+ | ((X << 6) & 0x01000000) | ((X << 9) & 0x00200000)
+ | ((X >> 1) & 0x00100000) | ((X << 10) & 0x00040000)
+ | ((X << 2) & 0x00020000) | ((X >> 10) & 0x00010000)
+ | ((Y >> 13) & 0x00002000) | ((Y >> 4) & 0x00001000)
+ | ((Y << 6) & 0x00000800) | ((Y >> 1) & 0x00000400)
+ | ((Y >> 14) & 0x00000200) | ((Y ) & 0x00000100)
+ | ((Y >> 5) & 0x00000020) | ((Y >> 10) & 0x00000010)
+ | ((Y >> 3) & 0x00000008) | ((Y >> 18) & 0x00000004)
+ | ((Y >> 26) & 0x00000002) | ((Y >> 24) & 0x00000001);
+
+ *SK++ = ((X << 15) & 0x20000000) | ((X << 17) & 0x10000000)
+ | ((X << 10) & 0x08000000) | ((X << 22) & 0x04000000)
+ | ((X >> 2) & 0x02000000) | ((X << 1) & 0x01000000)
+ | ((X << 16) & 0x00200000) | ((X << 11) & 0x00100000)
+ | ((X << 3) & 0x00080000) | ((X >> 6) & 0x00040000)
+ | ((X << 15) & 0x00020000) | ((X >> 4) & 0x00010000)
+ | ((Y >> 2) & 0x00002000) | ((Y << 8) & 0x00001000)
+ | ((Y >> 14) & 0x00000808) | ((Y >> 9) & 0x00000400)
+ | ((Y ) & 0x00000200) | ((Y << 7) & 0x00000100)
+ | ((Y >> 7) & 0x00000020) | ((Y >> 3) & 0x00000011)
+ | ((Y << 2) & 0x00000004) | ((Y >> 21) & 0x00000002);
+ }
+}
+
+/*
+ * DES key schedule (56-bit, encryption)
+ */
+int des_setkey_enc( des_context *ctx, const unsigned char key[DES_KEY_SIZE] )
+{
+ des_setkey( ctx->sk, key );
+
+ return( 0 );
+}
+
+/*
+ * DES key schedule (56-bit, decryption)
+ */
+int des_setkey_dec( des_context *ctx, const unsigned char key[DES_KEY_SIZE] )
+{
+ int i;
+
+ des_setkey( ctx->sk, key );
+
+ for( i = 0; i < 16; i += 2 )
+ {
+ SWAP( ctx->sk[i ], ctx->sk[30 - i] );
+ SWAP( ctx->sk[i + 1], ctx->sk[31 - i] );
+ }
+
+ return( 0 );
+}
+
+static void des3_set2key( uint32_t esk[96],
+ uint32_t dsk[96],
+ const unsigned char key[DES_KEY_SIZE*2] )
+{
+ int i;
+
+ des_setkey( esk, key );
+ des_setkey( dsk + 32, key + 8 );
+
+ for( i = 0; i < 32; i += 2 )
+ {
+ dsk[i ] = esk[30 - i];
+ dsk[i + 1] = esk[31 - i];
+
+ esk[i + 32] = dsk[62 - i];
+ esk[i + 33] = dsk[63 - i];
+
+ esk[i + 64] = esk[i ];
+ esk[i + 65] = esk[i + 1];
+
+ dsk[i + 64] = dsk[i ];
+ dsk[i + 65] = dsk[i + 1];
+ }
+}
+
+/*
+ * Triple-DES key schedule (112-bit, encryption)
+ */
+int des3_set2key_enc( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 2] )
+{
+ uint32_t sk[96];
+
+ des3_set2key( ctx->sk, sk, key );
+ memset( sk, 0, sizeof( sk ) );
+
+ return( 0 );
+}
+
+/*
+ * Triple-DES key schedule (112-bit, decryption)
+ */
+int des3_set2key_dec( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 2] )
+{
+ uint32_t sk[96];
+
+ des3_set2key( sk, ctx->sk, key );
+ memset( sk, 0, sizeof( sk ) );
+
+ return( 0 );
+}
+
+static void des3_set3key( uint32_t esk[96],
+ uint32_t dsk[96],
+ const unsigned char key[24] )
+{
+ int i;
+
+ des_setkey( esk, key );
+ des_setkey( dsk + 32, key + 8 );
+ des_setkey( esk + 64, key + 16 );
+
+ for( i = 0; i < 32; i += 2 )
+ {
+ dsk[i ] = esk[94 - i];
+ dsk[i + 1] = esk[95 - i];
+
+ esk[i + 32] = dsk[62 - i];
+ esk[i + 33] = dsk[63 - i];
+
+ dsk[i + 64] = esk[30 - i];
+ dsk[i + 65] = esk[31 - i];
+ }
+}
+
+/*
+ * Triple-DES key schedule (168-bit, encryption)
+ */
+int des3_set3key_enc( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 3] )
+{
+ uint32_t sk[96];
+
+ des3_set3key( ctx->sk, sk, key );
+ memset( sk, 0, sizeof( sk ) );
+
+ return( 0 );
+}
+
+/*
+ * Triple-DES key schedule (168-bit, decryption)
+ */
+int des3_set3key_dec( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 3] )
+{
+ uint32_t sk[96];
+
+ des3_set3key( sk, ctx->sk, key );
+ memset( sk, 0, sizeof( sk ) );
+
+ return( 0 );
+}
+
+/*
+ * DES-ECB block encryption/decryption
+ */
+int des_crypt_ecb( des_context *ctx,
+ const unsigned char input[8],
+ unsigned char output[8] )
+{
+ int i;
+ uint32_t X, Y, T, *SK;
+
+ SK = ctx->sk;
+
+ GET_UINT32_BE( X, input, 0 );
+ GET_UINT32_BE( Y, input, 4 );
+
+ DES_IP( X, Y );
+
+ for( i = 0; i < 8; i++ )
+ {
+ DES_ROUND( Y, X );
+ DES_ROUND( X, Y );
+ }
+
+ DES_FP( Y, X );
+
+ PUT_UINT32_BE( Y, output, 0 );
+ PUT_UINT32_BE( X, output, 4 );
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_CIPHER_MODE_CBC)
+/*
+ * DES-CBC buffer encryption/decryption
+ */
+int des_crypt_cbc( des_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[8],
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int i;
+ unsigned char temp[8];
+
+ if( length % 8 )
+ return( POLARSSL_ERR_DES_INVALID_INPUT_LENGTH );
+
+ if( mode == DES_ENCRYPT )
+ {
+ while( length > 0 )
+ {
+ for( i = 0; i < 8; i++ )
+ output[i] = (unsigned char)( input[i] ^ iv[i] );
+
+ des_crypt_ecb( ctx, output, output );
+ memcpy( iv, output, 8 );
+
+ input += 8;
+ output += 8;
+ length -= 8;
+ }
+ }
+ else /* DES_DECRYPT */
+ {
+ while( length > 0 )
+ {
+ memcpy( temp, input, 8 );
+ des_crypt_ecb( ctx, input, output );
+
+ for( i = 0; i < 8; i++ )
+ output[i] = (unsigned char)( output[i] ^ iv[i] );
+
+ memcpy( iv, temp, 8 );
+
+ input += 8;
+ output += 8;
+ length -= 8;
+ }
+ }
+
+ return( 0 );
+}
+#endif /* POLARSSL_CIPHER_MODE_CBC */
+
+/*
+ * 3DES-ECB block encryption/decryption
+ */
+int des3_crypt_ecb( des3_context *ctx,
+ const unsigned char input[8],
+ unsigned char output[8] )
+{
+ int i;
+ uint32_t X, Y, T, *SK;
+
+ SK = ctx->sk;
+
+ GET_UINT32_BE( X, input, 0 );
+ GET_UINT32_BE( Y, input, 4 );
+
+ DES_IP( X, Y );
+
+ for( i = 0; i < 8; i++ )
+ {
+ DES_ROUND( Y, X );
+ DES_ROUND( X, Y );
+ }
+
+ for( i = 0; i < 8; i++ )
+ {
+ DES_ROUND( X, Y );
+ DES_ROUND( Y, X );
+ }
+
+ for( i = 0; i < 8; i++ )
+ {
+ DES_ROUND( Y, X );
+ DES_ROUND( X, Y );
+ }
+
+ DES_FP( Y, X );
+
+ PUT_UINT32_BE( Y, output, 0 );
+ PUT_UINT32_BE( X, output, 4 );
+
+ return( 0 );
+}
+
+#if defined(POLARSSL_CIPHER_MODE_CBC)
+/*
+ * 3DES-CBC buffer encryption/decryption
+ */
+int des3_crypt_cbc( des3_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[8],
+ const unsigned char *input,
+ unsigned char *output )
+{
+ int i;
+ unsigned char temp[8];
+
+ if( length % 8 )
+ return( POLARSSL_ERR_DES_INVALID_INPUT_LENGTH );
+
+ if( mode == DES_ENCRYPT )
+ {
+ while( length > 0 )
+ {
+ for( i = 0; i < 8; i++ )
+ output[i] = (unsigned char)( input[i] ^ iv[i] );
+
+ des3_crypt_ecb( ctx, output, output );
+ memcpy( iv, output, 8 );
+
+ input += 8;
+ output += 8;
+ length -= 8;
+ }
+ }
+ else /* DES_DECRYPT */
+ {
+ while( length > 0 )
+ {
+ memcpy( temp, input, 8 );
+ des3_crypt_ecb( ctx, input, output );
+
+ for( i = 0; i < 8; i++ )
+ output[i] = (unsigned char)( output[i] ^ iv[i] );
+
+ memcpy( iv, temp, 8 );
+
+ input += 8;
+ output += 8;
+ length -= 8;
+ }
+ }
+
+ return( 0 );
+}
+#endif /* POLARSSL_CIPHER_MODE_CBC */
+
+#endif /* !POLARSSL_DES_ALT */
+
+#if defined(POLARSSL_SELF_TEST)
+
+#include <stdio.h>
+
+/*
+ * DES and 3DES test vectors from:
+ *
+ * http://csrc.nist.gov/groups/STM/cavp/documents/des/tripledes-vectors.zip
+ */
+static const unsigned char des3_test_keys[24] =
+{
+ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
+ 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01,
+ 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23
+};
+
+static const unsigned char des3_test_buf[8] =
+{
+ 0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74
+};
+
+static const unsigned char des3_test_ecb_dec[3][8] =
+{
+ { 0xCD, 0xD6, 0x4F, 0x2F, 0x94, 0x27, 0xC1, 0x5D },
+ { 0x69, 0x96, 0xC8, 0xFA, 0x47, 0xA2, 0xAB, 0xEB },
+ { 0x83, 0x25, 0x39, 0x76, 0x44, 0x09, 0x1A, 0x0A }
+};
+
+static const unsigned char des3_test_ecb_enc[3][8] =
+{
+ { 0x6A, 0x2A, 0x19, 0xF4, 0x1E, 0xCA, 0x85, 0x4B },
+ { 0x03, 0xE6, 0x9F, 0x5B, 0xFA, 0x58, 0xEB, 0x42 },
+ { 0xDD, 0x17, 0xE8, 0xB8, 0xB4, 0x37, 0xD2, 0x32 }
+};
+
+#if defined(POLARSSL_CIPHER_MODE_CBC)
+static const unsigned char des3_test_iv[8] =
+{
+ 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF,
+};
+
+static const unsigned char des3_test_cbc_dec[3][8] =
+{
+ { 0x12, 0x9F, 0x40, 0xB9, 0xD2, 0x00, 0x56, 0xB3 },
+ { 0x47, 0x0E, 0xFC, 0x9A, 0x6B, 0x8E, 0xE3, 0x93 },
+ { 0xC5, 0xCE, 0xCF, 0x63, 0xEC, 0xEC, 0x51, 0x4C }
+};
+
+static const unsigned char des3_test_cbc_enc[3][8] =
+{
+ { 0x54, 0xF1, 0x5A, 0xF6, 0xEB, 0xE3, 0xA4, 0xB4 },
+ { 0x35, 0x76, 0x11, 0x56, 0x5F, 0xA1, 0x8E, 0x4D },
+ { 0xCB, 0x19, 0x1F, 0x85, 0xD1, 0xED, 0x84, 0x39 }
+};
+#endif /* POLARSSL_CIPHER_MODE_CBC */
+
+/*
+ * Checkup routine
+ */
+int des_self_test( int verbose )
+{
+ int i, j, u, v;
+ des_context ctx;
+ des3_context ctx3;
+ unsigned char key[24];
+ unsigned char buf[8];
+#if defined(POLARSSL_CIPHER_MODE_CBC)
+ unsigned char prv[8];
+ unsigned char iv[8];
+#endif
+
+ memset( key, 0, 24 );
+
+ /*
+ * ECB mode
+ */
+ for( i = 0; i < 6; i++ )
+ {
+ u = i >> 1;
+ v = i & 1;
+
+ if( verbose != 0 )
+ polarssl_printf( " DES%c-ECB-%3d (%s): ",
+ ( u == 0 ) ? ' ' : '3', 56 + u * 56,
+ ( v == DES_DECRYPT ) ? "dec" : "enc" );
+
+ memcpy( buf, des3_test_buf, 8 );
+
+ switch( i )
+ {
+ case 0:
+ des_setkey_dec( &ctx, des3_test_keys );
+ break;
+
+ case 1:
+ des_setkey_enc( &ctx, des3_test_keys );
+ break;
+
+ case 2:
+ des3_set2key_dec( &ctx3, des3_test_keys );
+ break;
+
+ case 3:
+ des3_set2key_enc( &ctx3, des3_test_keys );
+ break;
+
+ case 4:
+ des3_set3key_dec( &ctx3, des3_test_keys );
+ break;
+
+ case 5:
+ des3_set3key_enc( &ctx3, des3_test_keys );
+ break;
+
+ default:
+ return( 1 );
+ }
+
+ for( j = 0; j < 10000; j++ )
+ {
+ if( u == 0 )
+ des_crypt_ecb( &ctx, buf, buf );
+ else
+ des3_crypt_ecb( &ctx3, buf, buf );
+ }
+
+ if( ( v == DES_DECRYPT &&
+ memcmp( buf, des3_test_ecb_dec[u], 8 ) != 0 ) ||
+ ( v != DES_DECRYPT &&
+ memcmp( buf, des3_test_ecb_enc[u], 8 ) != 0 ) )
+ {
+ if( verbose != 0 )
+ polarssl_printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ polarssl_printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ polarssl_printf( "\n" );
+
+#if defined(POLARSSL_CIPHER_MODE_CBC)
+ /*
+ * CBC mode
+ */
+ for( i = 0; i < 6; i++ )
+ {
+ u = i >> 1;
+ v = i & 1;
+
+ if( verbose != 0 )
+ polarssl_printf( " DES%c-CBC-%3d (%s): ",
+ ( u == 0 ) ? ' ' : '3', 56 + u * 56,
+ ( v == DES_DECRYPT ) ? "dec" : "enc" );
+
+ memcpy( iv, des3_test_iv, 8 );
+ memcpy( prv, des3_test_iv, 8 );
+ memcpy( buf, des3_test_buf, 8 );
+
+ switch( i )
+ {
+ case 0:
+ des_setkey_dec( &ctx, des3_test_keys );
+ break;
+
+ case 1:
+ des_setkey_enc( &ctx, des3_test_keys );
+ break;
+
+ case 2:
+ des3_set2key_dec( &ctx3, des3_test_keys );
+ break;
+
+ case 3:
+ des3_set2key_enc( &ctx3, des3_test_keys );
+ break;
+
+ case 4:
+ des3_set3key_dec( &ctx3, des3_test_keys );
+ break;
+
+ case 5:
+ des3_set3key_enc( &ctx3, des3_test_keys );
+ break;
+
+ default:
+ return( 1 );
+ }
+
+ if( v == DES_DECRYPT )
+ {
+ for( j = 0; j < 10000; j++ )
+ {
+ if( u == 0 )
+ des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
+ else
+ des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
+ }
+ }
+ else
+ {
+ for( j = 0; j < 10000; j++ )
+ {
+ unsigned char tmp[8];
+
+ if( u == 0 )
+ des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
+ else
+ des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
+
+ memcpy( tmp, prv, 8 );
+ memcpy( prv, buf, 8 );
+ memcpy( buf, tmp, 8 );
+ }
+
+ memcpy( buf, prv, 8 );
+ }
+
+ if( ( v == DES_DECRYPT &&
+ memcmp( buf, des3_test_cbc_dec[u], 8 ) != 0 ) ||
+ ( v != DES_DECRYPT &&
+ memcmp( buf, des3_test_cbc_enc[u], 8 ) != 0 ) )
+ {
+ if( verbose != 0 )
+ polarssl_printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ polarssl_printf( "passed\n" );
+ }
+#endif /* POLARSSL_CIPHER_MODE_CBC */
+
+ if( verbose != 0 )
+ polarssl_printf( "\n" );
+
+ return( 0 );
+}
+
+#endif
+
+#endif
--- /dev/null
+/**
+ * \file des.h
+ *
+ * \brief DES block cipher
+ *
+ * Copyright (C) 2006-2013, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_DES_H
+#define POLARSSL_DES_H
+
+//#include "config.h"
+
+#include <string.h>
+
+#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
+#include <basetsd.h>
+typedef UINT32 uint32_t;
+#else
+#include <inttypes.h>
+#endif
+
+#define DES_ENCRYPT 1
+#define DES_DECRYPT 0
+
+#define POLARSSL_ERR_DES_INVALID_INPUT_LENGTH -0x0032 /**< The data input has an invalid length. */
+
+#define DES_KEY_SIZE 8
+
+#if !defined(POLARSSL_DES_ALT)
+// Regular implementation
+//
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief DES context structure
+ */
+typedef struct
+{
+ int mode; /*!< encrypt/decrypt */
+ uint32_t sk[32]; /*!< DES subkeys */
+}
+des_context;
+
+/**
+ * \brief Triple-DES context structure
+ */
+typedef struct
+{
+ int mode; /*!< encrypt/decrypt */
+ uint32_t sk[96]; /*!< 3DES subkeys */
+}
+des3_context;
+
+/**
+ * \brief Set key parity on the given key to odd.
+ *
+ * DES keys are 56 bits long, but each byte is padded with
+ * a parity bit to allow verification.
+ *
+ * \param key 8-byte secret key
+ */
+void des_key_set_parity( unsigned char key[DES_KEY_SIZE] );
+
+/**
+ * \brief Check that key parity on the given key is odd.
+ *
+ * DES keys are 56 bits long, but each byte is padded with
+ * a parity bit to allow verification.
+ *
+ * \param key 8-byte secret key
+ *
+ * \return 0 is parity was ok, 1 if parity was not correct.
+ */
+int des_key_check_key_parity( const unsigned char key[DES_KEY_SIZE] );
+
+/**
+ * \brief Check that key is not a weak or semi-weak DES key
+ *
+ * \param key 8-byte secret key
+ *
+ * \return 0 if no weak key was found, 1 if a weak key was identified.
+ */
+int des_key_check_weak( const unsigned char key[DES_KEY_SIZE] );
+
+/**
+ * \brief DES key schedule (56-bit, encryption)
+ *
+ * \param ctx DES context to be initialized
+ * \param key 8-byte secret key
+ *
+ * \return 0
+ */
+int des_setkey_enc( des_context *ctx, const unsigned char key[DES_KEY_SIZE] );
+
+/**
+ * \brief DES key schedule (56-bit, decryption)
+ *
+ * \param ctx DES context to be initialized
+ * \param key 8-byte secret key
+ *
+ * \return 0
+ */
+int des_setkey_dec( des_context *ctx, const unsigned char key[DES_KEY_SIZE] );
+
+/**
+ * \brief Triple-DES key schedule (112-bit, encryption)
+ *
+ * \param ctx 3DES context to be initialized
+ * \param key 16-byte secret key
+ *
+ * \return 0
+ */
+int des3_set2key_enc( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 2] );
+
+/**
+ * \brief Triple-DES key schedule (112-bit, decryption)
+ *
+ * \param ctx 3DES context to be initialized
+ * \param key 16-byte secret key
+ *
+ * \return 0
+ */
+int des3_set2key_dec( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 2] );
+
+/**
+ * \brief Triple-DES key schedule (168-bit, encryption)
+ *
+ * \param ctx 3DES context to be initialized
+ * \param key 24-byte secret key
+ *
+ * \return 0
+ */
+int des3_set3key_enc( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 3] );
+
+/**
+ * \brief Triple-DES key schedule (168-bit, decryption)
+ *
+ * \param ctx 3DES context to be initialized
+ * \param key 24-byte secret key
+ *
+ * \return 0
+ */
+int des3_set3key_dec( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 3] );
+
+/**
+ * \brief DES-ECB block encryption/decryption
+ *
+ * \param ctx DES context
+ * \param input 64-bit input block
+ * \param output 64-bit output block
+ *
+ * \return 0 if successful
+ */
+int des_crypt_ecb( des_context *ctx,
+ const unsigned char input[8],
+ unsigned char output[8] );
+
+#if defined(POLARSSL_CIPHER_MODE_CBC)
+/**
+ * \brief DES-CBC buffer encryption/decryption
+ *
+ * \param ctx DES context
+ * \param mode DES_ENCRYPT or DES_DECRYPT
+ * \param length length of the input data
+ * \param iv initialization vector (updated after use)
+ * \param input buffer holding the input data
+ * \param output buffer holding the output data
+ */
+int des_crypt_cbc( des_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[8],
+ const unsigned char *input,
+ unsigned char *output );
+#endif /* POLARSSL_CIPHER_MODE_CBC */
+
+/**
+ * \brief 3DES-ECB block encryption/decryption
+ *
+ * \param ctx 3DES context
+ * \param input 64-bit input block
+ * \param output 64-bit output block
+ *
+ * \return 0 if successful
+ */
+int des3_crypt_ecb( des3_context *ctx,
+ const unsigned char input[8],
+ unsigned char output[8] );
+
+#if defined(POLARSSL_CIPHER_MODE_CBC)
+/**
+ * \brief 3DES-CBC buffer encryption/decryption
+ *
+ * \param ctx 3DES context
+ * \param mode DES_ENCRYPT or DES_DECRYPT
+ * \param length length of the input data
+ * \param iv initialization vector (updated after use)
+ * \param input buffer holding the input data
+ * \param output buffer holding the output data
+ *
+ * \return 0 if successful, or POLARSSL_ERR_DES_INVALID_INPUT_LENGTH
+ */
+int des3_crypt_cbc( des3_context *ctx,
+ int mode,
+ size_t length,
+ unsigned char iv[8],
+ const unsigned char *input,
+ unsigned char *output );
+#endif /* POLARSSL_CIPHER_MODE_CBC */
+
+#ifdef __cplusplus
+}
+#endif
+
+#else /* POLARSSL_DES_ALT */
+#include "des_alt.h"
+#endif /* POLARSSL_DES_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int des_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* des.h */
--- /dev/null
+/*****************************************************************************
+ * This file is part of iClassCipher. It is a reconstructon of the cipher engine
+ * used in iClass, and RFID techology.
+ *
+ * The implementation is based on the work performed by
+ * Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
+ * Milosch Meriac in the paper "Dismantling IClass".
+ *
+ * Copyright (C) 2014 Martin Holst Swende
+ *
+ * This is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with IClassCipher. If not, see <http://www.gnu.org/licenses/>.
+ ****************************************************************************/
+/**
+From "Dismantling iclass":
+ This section describes in detail the built-in key diversification algorithm of iClass.
+ Besides the obvious purpose of deriving a card key from a master key, this
+ algorithm intends to circumvent weaknesses in the cipher by preventing the
+ usage of certain ‘weak’ keys. In order to compute a diversified key, the iClass
+ reader first encrypts the card identity id with the master key K, using single
+ DES. The resulting ciphertext is then input to a function called hash0 which
+ outputs the diversified key k.
+
+ k = hash0(DES enc (id, K))
+
+ Here the DES encryption of id with master key K outputs a cryptogram c
+ of 64 bits. These 64 bits are divided as c = x, y, z [0] , . . . , z [7] ∈ F 82 × F 82 × (F 62 ) 8
+ which is used as input to the hash0 function. This function introduces some
+ obfuscation by performing a number of permutations, complement and modulo
+ operations, see Figure 2.5. Besides that, it checks for and removes patterns like
+ similar key bytes, which could produce a strong bias in the cipher. Finally, the
+ output of hash0 is the diversified card key k = k [0] , . . . , k [7] ∈ (F 82 ) 8 .
+
+
+**/
+
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include "cipherutils.h"
+#include "cipher.h"
+#include "../util.h"
+#include <stdio.h>
+#include "des.h"
+#include <inttypes.h>
+
+uint8_t pi[35] = {0x0F,0x17,0x1B,0x1D,0x1E,0x27,0x2B,0x2D,0x2E,0x33,0x35,0x39,0x36,0x3A,0x3C,0x47,0x4B,0x4D,0x4E,0x53,0x55,0x56,0x59,0x5A,0x5C,0x63,0x65,0x66,0x69,0x6A,0x6C,0x71,0x72,0x74,0x78};
+
+static des_context ctx_enc = {DES_ENCRYPT,{0}};
+static des_context ctx_dec = {DES_DECRYPT,{0}};
+
+static bool debug_print = false;
+
+/**
+ * @brief The key diversification algorithm uses 6-bit bytes.
+ * This implementation uses 64 bit uint to pack seven of them into one
+ * variable. When they are there, they are placed as follows:
+ * XXXX XXXX N0 .... N7, occupying the lsat 48 bits.
+ *
+ * This function picks out one from such a collection
+ * @param all
+ * @param n bitnumber
+ * @return
+ */
+uint8_t getSixBitByte(uint64_t c, int n)
+{
+ return (c >> (42-6*n)) & 0x3F;
+ //return (c >> n*6) & 0x3f;
+}
+
+/**
+ * @brief Puts back a six-bit 'byte' into a uint64_t.
+ * @param c buffer
+ * @param z the value to place there
+ * @param n bitnumber.
+ */
+void pushbackSixBitByte(uint64_t *c, uint8_t z, int n)
+{
+ //0x XXXX YYYY ZZZZ ZZZZ ZZZZ
+ // ^z0 ^z7
+ //z0: 1111 1100 0000 0000
+
+ uint64_t masked = z & 0x3F;
+ uint64_t eraser = 0x3F;
+ masked <<= 42-6*n;
+ eraser <<= 42-6*n;
+
+ //masked <<= 6*n;
+ //eraser <<= 6*n;
+
+ eraser = ~eraser;
+ (*c) &= eraser;
+ (*c) |= masked;
+
+}
+
+uint64_t swapZvalues(uint64_t c)
+{
+ uint64_t newz = 0;
+ pushbackSixBitByte(&newz, getSixBitByte(c,0),7);
+ pushbackSixBitByte(&newz, getSixBitByte(c,1),6);
+ pushbackSixBitByte(&newz, getSixBitByte(c,2),5);
+ pushbackSixBitByte(&newz, getSixBitByte(c,3),4);
+ pushbackSixBitByte(&newz, getSixBitByte(c,4),3);
+ pushbackSixBitByte(&newz, getSixBitByte(c,5),2);
+ pushbackSixBitByte(&newz, getSixBitByte(c,6),1);
+ pushbackSixBitByte(&newz, getSixBitByte(c,7),0);
+ newz |= (c & 0xFFFF000000000000);
+ return newz;
+}
+
+/**
+* @return 4 six-bit bytes chunked into a uint64_t,as 00..00a0a1a2a3
+*/
+uint64_t ck(int i, int j, uint64_t z)
+{
+
+// printf("ck( i=%d, j=%d), zi=[%d],zj=[%d] \n",i,j,getSixBitByte(z,i),getSixBitByte(z,j) );
+
+ if(i == 1 && j == -1)
+ {
+ // ck(1, −1, z [0] . . . z [3] ) = z [0] . . . z [3]
+ return z;
+
+ }else if( j == -1)
+ {
+ // ck(i, −1, z [0] . . . z [3] ) = ck(i − 1, i − 2, z [0] . . . z [3] )
+ return ck(i-1,i-2, z);
+ }
+
+ if(getSixBitByte(z,i) == getSixBitByte(z,j))
+ {
+ // TODO, I dont know what they mean here in the paper
+ //ck(i, j − 1, z [0] . . . z [i] ← j . . . z [3] )
+ uint64_t newz = 0;
+ int c;
+ //printf("z[i]=z[i] (0x%02x), i=%d, j=%d\n",getSixBitByte(z,i),i,j );
+ for(c = 0; c < 4 ;c++)
+ {
+ uint8_t val = getSixBitByte(z,c);
+ if(c == i)
+ {
+ //printf("oops\n");
+ pushbackSixBitByte(&newz, j, c);
+ }else
+ {
+ pushbackSixBitByte(&newz, val, c);
+ }
+ }
+ return ck(i,j-1,newz);
+ }else
+ {
+ return ck(i,j-1,z);
+ }
+
+}
+/**
+
+ Definition 8.
+ Let the function check : (F 62 ) 8 → (F 62 ) 8 be defined as
+ check(z [0] . . . z [7] ) = ck(3, 2, z [0] . . . z [3] ) · ck(3, 2, z [4] . . . z [7] )
+
+ where ck : N × N × (F 62 ) 4 → (F 62 ) 4 is defined as
+
+ ck(1, −1, z [0] . . . z [3] ) = z [0] . . . z [3]
+ ck(i, −1, z [0] . . . z [3] ) = ck(i − 1, i − 2, z [0] . . . z [3] )
+ ck(i, j, z [0] . . . z [3] ) =
+ ck(i, j − 1, z [0] . . . z [i] ← j . . . z [3] ), if z [i] = z [j] ;
+ ck(i, j − 1, z [0] . . . z [3] ), otherwise
+
+ otherwise.
+**/
+
+uint64_t check(uint64_t z)
+{
+ //These 64 bits are divided as c = x, y, z [0] , . . . , z [7]
+
+ // ck(3, 2, z [0] . . . z [3] )
+ uint64_t ck1 = ck(3,2, z );
+
+ // ck(3, 2, z [4] . . . z [7] )
+ uint64_t ck2 = ck(3,2, z << 24);
+ ck1 &= 0x00000000FFFFFF000000;
+ ck2 &= 0x00000000FFFFFF000000;
+
+ return ck1 | ck2 >> 24;
+
+}
+
+void permute(BitstreamIn *p_in, uint64_t z,int l,int r, BitstreamOut* out)
+{
+ if(bitsLeft(p_in) == 0)
+ {
+ return;
+ }
+ bool pn = tailBit(p_in);
+ if( pn ) // pn = 1
+ {
+ uint8_t zl = getSixBitByte(z,l);
+ //printf("permute pushing, zl=0x%02x, zl+1=0x%02x\n", zl, zl+1);
+ push6bits(out, zl+1);
+ permute(p_in, z, l+1,r, out);
+ }else // otherwise
+ {
+ uint8_t zr = getSixBitByte(z,r);
+ //printf("permute pushing, zr=0x%02x\n", zr);
+ push6bits(out, zr);
+ permute(p_in,z,l,r+1,out);
+ }
+}
+void testPermute()
+{
+
+ uint64_t x = 0;
+ pushbackSixBitByte(&x,0x00,0);
+ pushbackSixBitByte(&x,0x01,1);
+ pushbackSixBitByte(&x,0x02,2);
+ pushbackSixBitByte(&x,0x03,3);
+ pushbackSixBitByte(&x,0x04,4);
+ pushbackSixBitByte(&x,0x05,5);
+ pushbackSixBitByte(&x,0x06,6);
+ pushbackSixBitByte(&x,0x07,7);
+
+ uint8_t mres[8] = { getSixBitByte(x, 0),
+ getSixBitByte(x, 1),
+ getSixBitByte(x, 2),
+ getSixBitByte(x, 3),
+ getSixBitByte(x, 4),
+ getSixBitByte(x, 5),
+ getSixBitByte(x, 6),
+ getSixBitByte(x, 7)};
+ printarr("input_perm", mres,8);
+
+ uint8_t p = ~pi[0];
+ BitstreamIn p_in = { &p, 8,0 };
+ uint8_t outbuffer[] = {0,0,0,0,0,0,0,0};
+ BitstreamOut out = {outbuffer,0,0};
+
+ permute(&p_in, x,0,4, &out);
+
+ uint64_t permuted = bytes_to_num(outbuffer,8);
+ //printf("zTilde 0x%"PRIX64"\n", zTilde);
+ permuted >>= 16;
+
+ uint8_t res[8] = { getSixBitByte(permuted, 0),
+ getSixBitByte(permuted, 1),
+ getSixBitByte(permuted, 2),
+ getSixBitByte(permuted, 3),
+ getSixBitByte(permuted, 4),
+ getSixBitByte(permuted, 5),
+ getSixBitByte(permuted, 6),
+ getSixBitByte(permuted, 7)};
+ printarr("permuted", res, 8);
+}
+void printbegin()
+{
+ if(! debug_print)
+ return;
+
+ printf(" | x| y|z0|z1|z2|z3|z4|z5|z6|z7|\n");
+}
+
+void printState(char* desc, int x,int y, uint64_t c)
+{
+ if(! debug_print)
+ return;
+
+ printf("%s : ", desc);
+ //uint8_t x = (c & 0xFF00000000000000 ) >> 56;
+ //uint8_t y = (c & 0x00FF000000000000 ) >> 48;
+ printf(" %02x %02x", x,y);
+ int i ;
+ for(i =0 ; i < 8 ; i++)
+ {
+ printf(" %02x", getSixBitByte(c,i));
+ }
+ printf("\n");
+}
+
+/**
+ * @brief
+ *Definition 11. Let the function hash0 : F 82 × F 82 × (F 62 ) 8 → (F 82 ) 8 be defined as
+ * hash0(x, y, z [0] . . . z [7] ) = k [0] . . . k [7] where
+ * z'[i] = (z[i] mod (63-i)) + i i = 0...3
+ * z'[i+4] = (z[i+4] mod (64-i)) + i i = 0...3
+ * ẑ = check(z');
+ * @param c
+ * @param k this is where the diversified key is put (should be 8 bytes)
+ * @return
+ */
+void hash0(uint64_t c, uint8_t *k)
+{
+ printbegin();
+ //These 64 bits are divided as c = x, y, z [0] , . . . , z [7]
+ // x = 8 bits
+ // y = 8 bits
+ // z0-z7 6 bits each : 48 bits
+ uint8_t x = (c & 0xFF00000000000000 ) >> 56;
+ uint8_t y = (c & 0x00FF000000000000 ) >> 48;
+ printState("origin",x,y,c);
+ int n;
+ uint8_t zn, zn4, _zn, _zn4;
+ uint64_t zP = 0;
+
+ for(n = 0; n < 4 ; n++)
+ {
+ zn = getSixBitByte(c,n);
+ zn4 = getSixBitByte(c,n+4);
+
+ _zn = (zn % (63-n)) + n;
+ _zn4 = (zn4 % (64-n)) + n;
+
+ pushbackSixBitByte(&zP, _zn,n);
+ pushbackSixBitByte(&zP, _zn4,n+4);
+
+ }
+ printState("x|y|z'",x,y,zP);
+
+ uint64_t zCaret = check(zP);
+ printState("x|y|z^",x,y,zP);
+
+
+ uint8_t p = pi[x % 35];
+
+ if(x & 1) //Check if x7 is 1
+ {
+ p = ~p;
+ }
+ printState("p|y|z^",p,y,zP);
+ //if(debug_print) printf("p:%02x\n", p);
+
+ BitstreamIn p_in = { &p, 8,0 };
+ uint8_t outbuffer[] = {0,0,0,0,0,0,0,0};
+ BitstreamOut out = {outbuffer,0,0};
+ permute(&p_in,zCaret,0,4,&out);//returns 48 bits? or 6 8-bytes
+
+ //Out is now a buffer containing six-bit bytes, should be 48 bits
+ // if all went well
+ //printf("Permute output is %d num bits (48?)\n", out.numbits);
+ //Shift z-values down onto the lower segment
+
+ uint64_t zTilde = bytes_to_num(outbuffer,8);
+
+ //printf("zTilde 0x%"PRIX64"\n", zTilde);
+ zTilde >>= 16;
+ //printf("z~ 0x%"PRIX64"\n", zTilde);
+ printState("p|y|z~", p,y,zTilde);
+
+ int i;
+ int zerocounter =0 ;
+ for(i =0 ; i < 8 ; i++)
+ {
+
+ // the key on index i is first a bit from y
+ // then six bits from z,
+ // then a bit from p
+
+ // Init with zeroes
+ k[i] = 0;
+ // First, place yi leftmost in k
+ //k[i] |= (y << i) & 0x80 ;
+
+ // First, place y(7-i) leftmost in k
+ k[i] |= (y << (7-i)) & 0x80 ;
+
+ //printf("y%d = %d\n",i,(y << i) & 0x80);
+
+ uint8_t zTilde_i = getSixBitByte(zTilde, i);
+ //printf("zTilde_%d 0x%02x (should be <= 0x3F)\n",i, zTilde_i);
+ // zTildeI is now on the form 00XXXXXX
+ // with one leftshift, it'll be
+ // 0XXXXXX0
+ // So after leftshift, we can OR it into k
+ // However, when doing complement, we need to
+ // again MASK 0XXXXXX0 (0x7E)
+ zTilde_i <<= 1;
+
+ //Finally, add bit from p or p-mod
+ //Shift bit i into rightmost location (mask only after complement)
+ uint8_t p_i = p >> i & 0x1;
+
+ if( k[i] )// yi = 1
+ {
+ //printf("k[%d] +1\n", i);
+ k[i] |= ~zTilde_i & 0x7E;
+ k[i] |= p_i & 1;
+ k[i] += 1;
+
+ }else // otherwise
+ {
+ k[i] |= zTilde_i & 0x7E;
+ k[i] |= (~p_i) & 1;
+ }
+ if((k[i] & 1 )== 0)
+ {
+ zerocounter ++;
+ }
+ }
+ //printf("zerocounter=%d (should be 4)\n",zerocounter);
+ //printf("permute fin, y:0x%02x, x: 0x%02x\n", y, x);
+
+ //return k;
+}
+
+void reorder(uint8_t arr[8])
+{
+ uint8_t tmp[4] = {arr[3],arr[2],arr[1], arr[0]};
+ arr[0] = arr[7];
+ arr[1] = arr[6];
+ arr[2] = arr[5];
+ arr[3] = arr[4];
+ arr[4] = tmp[0];//arr[3];
+ arr[5] = tmp[1];//arr[2];
+ arr[6] = tmp[2];//arr[3];
+ arr[7] = tmp[3];//arr[1]
+}
+
+//extern void printarr(char * name, uint8_t* arr, int len);
+
+bool des_getParityBitFromKey(uint8_t key)
+{//The top 7 bits is used
+ bool parity = ((key & 0x80) >> 7)
+ ^ ((key & 0x40) >> 6) ^ ((key & 0x20) >> 5)
+ ^ ((key & 0x10) >> 4) ^ ((key & 0x08) >> 3)
+ ^ ((key & 0x04) >> 2) ^ ((key & 0x02) >> 1);
+ return !parity;
+}
+void des_checkParity(uint8_t* key)
+{
+ int i;
+ int fails =0;
+ for(i =0 ; i < 8 ; i++)
+ {
+ bool parity = des_getParityBitFromKey(key[i]);
+ if(parity != (key[i] & 0x1))
+ {
+ fails++;
+ printf("parity1 fail, byte %d [%02x] was %d, should be %d\n",i,key[i],(key[i] & 0x1),parity);
+ }
+ }
+ if(fails)
+ {
+ printf("parity fails: %d\n", fails);
+ }else
+ {
+ printf("Key syntax is with parity bits inside each byte\n");
+ }
+}
+
+void printarr2(char * name, uint8_t* arr, int len)
+{
+ int i ;
+ printf("%s :", name);
+ for(i =0 ; i< len ; i++)
+ {
+ printf("%02x",*(arr+i));
+ }
+ printf("\n");
+}
--- /dev/null
+#ifndef IKEYS_H
+#define IKEYS_H
+int testKeyDiversification();
+int doKeyTests();
+void hash0(uint64_t c, uint8_t *k);
+void pushbackSixBitByte(uint64_t *c, uint8_t z, int n);
+uint8_t getSixBitByte(uint64_t c, int n);
+#endif // IKEYS_H
#include <stdlib.h>
//#include "iso15693tools.h"
+#define POLY 0x8408
+
// The CRC as described in ISO 15693-Part 3-Annex C
// v buffer with data
// n length
return target;
}
+//CRC-16 Routine used within iclass
+unsigned short iclass_crc16(char *data_p, unsigned short length)
+{
+ unsigned char i;
+ unsigned int data;
+ unsigned int crc = 0xffff;
+
+ if (length == 0)
+ return (~crc);
+ do
+ {
+ for (i=0, data=(unsigned int)0xff & *data_p++;
+ i < 8;
+ i++, data >>= 1)
+ {
+ if ((crc & 0x0001) ^ (data & 0x0001))
+ crc = (crc >> 1) ^ POLY;
+ else crc >>= 1;
+ }
+ } while (--length);
+ crc = ~crc;
+ data = crc;
+ crc = (crc << 8) | (data >> 8 & 0xff);
+ crc = crc ^ 0xBC3;
+ return (crc);
+}
uint16_t Iso15693Crc(uint8_t *v, int n);
int Iso15693AddCrc(uint8_t *req, int n);
char* Iso15693sprintUID(char *target,uint8_t *uid);
-
+unsigned short iclass_crc16(char *data_p, unsigned short length);
//-----------------------------------------------------------------------------
// Map a sequence of octets (~layer 2 command) into the set of bits to feed
// to the FPGA, to transmit that command to the tag.
#define CMD_WRITER_LEGIC_RF 0x0389
#define CMD_EPA_PACE_COLLECT_NONCE 0x038A
+//iclass
#define CMD_SNOOP_ICLASS 0x0392
#define CMD_SIMULATE_TAG_ICLASS 0x0393
#define CMD_READER_ICLASS 0x0394
+#define CMD_READER_ICLASS_REPLAY 0x0395
+#define CMD_ICLASS_ISO14443A_GETPUBLIC 0x0396
+#define CMD_ICLASS_ISO14443A_WRITE 0x0397
// For measurements of the antenna tuning
#define CMD_MEASURE_ANTENNA_TUNING 0x0400
projects / proxmark3-svn / commitdiff