return res & 1;
}
-int CmdHFiClassList(const char *Cmd)
-{
-
- bool ShowWaitCycles = false;
- char param = param_getchar(Cmd, 0);
-
- if (param != 0) {
- PrintAndLog("List data in trace buffer.");
- PrintAndLog("Usage: hf iclass list");
- PrintAndLog("h - help");
- PrintAndLog("sample: hf iclass list");
- return 0;
- }
-
- uint8_t got[1920];
- GetFromBigBuf(got,sizeof(got),0);
- WaitForResponse(CMD_ACK,NULL);
-
- PrintAndLog("Recorded Activity");
- PrintAndLog("");
- PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
- PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
- PrintAndLog("");
- PrintAndLog(" Start | End | Src | Data");
- PrintAndLog("-----------|-----------|-----|--------");
-
- int i;
- uint32_t first_timestamp = 0;
- uint32_t timestamp;
- bool tagToReader;
- uint32_t parityBits;
- uint8_t len;
- uint8_t *frame;
- uint32_t EndOfTransmissionTimestamp = 0;
-
-
- for( i=0; i < 1900;)
- {
- //First 32 bits contain
- // isResponse (1 bit)
- // timestamp (remaining)
- //Then paritybits
- //Then length
- timestamp = *((uint32_t *)(got+i));
- parityBits = *((uint32_t *)(got+i+4));
- len = got[i+8];
- frame = (got+i+9);
- uint32_t next_timestamp = (*((uint32_t *)(got+i+9))) & 0x7fffffff;
-
- tagToReader = timestamp & 0x80000000;
- timestamp &= 0x7fffffff;
-
- if(i==0) {
- first_timestamp = timestamp;
- }
-
- // Break and stick with current result idf buffer was not completely full
- if (frame[0] == 0x44 && frame[1] == 0x44 && frame[2] == 0x44 && frame[3] == 0x44) break;
-
- char line[1000] = "";
-
- if(len)//We have some data to display
- {
- int j,oddparity;
-
- for(j = 0; j < len ; j++)
- {
- oddparity = 0x01 ^ xorbits_8(frame[j] & 0xFF);
-
- if (tagToReader && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) {
- sprintf(line+(j*4), "%02x! ", frame[j]);
- } else {
- sprintf(line+(j*4), "%02x ", frame[j]);
- }
- }
- }else
- {
- if (ShowWaitCycles) {
- sprintf(line, "fdt (Frame Delay Time): %d", (next_timestamp - timestamp));
- }
- }
-
- char *crc = "";
-
- if(len > 2)
- {
- uint8_t b1, b2;
- if(!tagToReader && len == 4) {
- // Rough guess that this is a command from the reader
- // For iClass the command byte is not part of the CRC
- ComputeCrc14443(CRC_ICLASS, &frame[1], len-3, &b1, &b2);
- }
- else {
- // For other data.. CRC might not be applicable (UPDATE commands etc.)
- ComputeCrc14443(CRC_ICLASS, frame, len-2, &b1, &b2);
- }
-
- if (b1 != frame[len-2] || b2 != frame[len-1]) {
- crc = (tagToReader & (len < 8)) ? "" : " !crc";
- }
- }
-
- i += (len + 9);
- EndOfTransmissionTimestamp = (*((uint32_t *)(got+i))) & 0x7fffffff;
+#define ICLASS_CMD_ACTALL 0x0A
+#define ICLASS_CMD_IDENTIFY 0x0C
+#define ICLASS_CMD_READ 0x0C
- // Not implemented for iclass on the ARM-side
- //if (!ShowWaitCycles) i += 9;
+#define ICLASS_CMD_SELECT 0x81
+#define ICLASS_CMD_PAGESEL 0x84
+#define ICLASS_CMD_READCHECK 0x88
+#define ICLASS_CMD_CHECK 0x05
+#define ICLASS_CMD_SOF 0x0F
+#define ICLASS_CMD_HALT 0x00
- 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)
+void explain(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
{
- uint8_t got[1920];
- GetFromBigBuf(got,sizeof(got),0);
-
- PrintAndLog("recorded activity:");
- PrintAndLog(" ETU :rssi: who bytes");
- PrintAndLog("---------+----+----+-----------");
-
- int i = 0;
- int prev = -1;
-
- for (;;) {
- if(i >= 1900) {
- break;
- }
-
- bool isResponse;
- int timestamp = *((uint32_t *)(got+i));
- if (timestamp & 0x80000000) {
- timestamp &= 0x7fffffff;
- isResponse = 1;
- } else {
- isResponse = 0;
- }
-
-
- int metric = 0;
-
- int parityBits = *((uint32_t *)(got+i+4));
- // 4 bytes of additional information...
- // maximum of 32 additional parity bit information
- //
- // TODO:
- // at each quarter bit period we can send power level (16 levels)
- // or each half bit period in 256 levels.
-
-
- int len = got[i+8];
-
- if (len > 100) {
- break;
- }
- if (i + len >= 1900) {
- break;
- }
-
- uint8_t *frame = (got+i+9);
- // Break and stick with current result if buffer was not completely full
- if (frame[0] == 0x44 && frame[1] == 0x44 && frame[3] == 0x44) { break; }
-
- char line[1000] = "";
- int j;
- for (j = 0; j < len; j++) {
- int oddparity = 0x01;
- int k;
-
- for (k=0;k<8;k++) {
- oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
- }
-
- //if((parityBits >> (len - j - 1)) & 0x01) {
- if (isResponse && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) {
- sprintf(line+(j*4), "%02x! ", frame[j]);
- }
- else {
- sprintf(line+(j*4), "%02x ", frame[j]);
- }
- }
-
- char *crc;
- crc = "";
- if (len > 2) {
- uint8_t b1, b2;
- for (j = 0; j < (len - 1); j++) {
- // gives problems... search for the reason..
- /*if(frame[j] == 0xAA) {
- switch(frame[j+1]) {
- case 0x01:
- crc = "[1] Two drops close after each other";
- break;
- case 0x02:
- crc = "[2] Potential SOC with a drop in second half of bitperiod";
- break;
- case 0x03:
- crc = "[3] Segment Z after segment X is not possible";
- break;
- case 0x04:
- crc = "[4] Parity bit of a fully received byte was wrong";
- break;
- default:
- crc = "[?] Unknown error";
- break;
- }
- break;
- }*/
- }
-
- if (strlen(crc)==0) {
- if(!isResponse && 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(cmdsize > 1 && cmd[0] == ICLASS_CMD_READ)
+ {
+ snprintf(exp,size,"READ(%d)",cmd[1]);
+ return;
}
- //printf("%1x %1x",(unsigned)b1,(unsigned)b2);
- if (b1 != frame[len-2] || b2 != frame[len-1]) {
- crc = (isResponse & (len < 8)) ? "" : " !crc";
- } else {
- crc = "";
- }
- }
- } else {
- crc = ""; // SHORT
- }
- char metricString[100];
- if (isResponse) {
- sprintf(metricString, "%3d", metric);
- } else {
- strcpy(metricString, " ");
+ switch(cmd[0])
+ {
+ case ICLASS_CMD_ACTALL: snprintf(exp,size,"ACTALL"); break;
+ case ICLASS_CMD_IDENTIFY: snprintf(exp,size,"IDENTIFY"); break;
+ case ICLASS_CMD_SELECT: snprintf(exp,size,"SELECT"); break;
+ case ICLASS_CMD_PAGESEL: snprintf(exp,size,"PAGESEL"); break;
+ case ICLASS_CMD_READCHECK: snprintf(exp,size,"READCHECK"); break;
+ case ICLASS_CMD_CHECK: snprintf(exp,size,"CHECK"); break;
+ case ICLASS_CMD_SOF: snprintf(exp,size,"SOF"); break;
+ case ICLASS_CMD_HALT: snprintf(exp,size,"HALT"); break;
+ default: snprintf(exp,size,"?"); break;
}
+ return;
+}
- PrintAndLog(" +%7d: %s: %s %s %s",
- (prev < 0 ? 0 : (timestamp - prev)),
- metricString,
- (isResponse ? "TAG" : " "), line, crc);
-
- prev = timestamp;
- i += (len + 9);
- }
- return 0;
+int CmdHFiClassList(const char *Cmd)
+{
+ PrintAndLog("Deprecated command, use 'hf list iclass' instead");
+ return 0;
}
int CmdHFiClassSnoop(const char *Cmd)
uint8_t * data = resp.d.asBytes;
PrintAndLog("isOk:%02x", isOK);
-
+ if( isOK == 0){
+ //Aborted
+ PrintAndLog("Quitting...");
+ return 0;
+ }
if(isOK > 0)
{
PrintAndLog("CSN: %s",sprint_hex(data,8));
}
-
- UsbCommand c = {CMD_READER_ICLASS, {0}};
- c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE;
-
- SendCommand(&c);
-
UsbCommand resp;
uint8_t key_sel[8] = {0};
uint8_t key_sel_p[8] = { 0 };
- if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
+ //HACK -- Below is for testing without access to a tag
+ uint8_t fake_dummy_test = false;
+ if(fake_dummy_test)
+ {
+ uint8_t xdata[16] = {0x01,0x02,0x03,0x04,0xF7,0xFF,0x12,0xE0, //CSN from http://www.proxmark.org/forum/viewtopic.php?pid=11230#p11230
+ 0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF}; // Just a random CC. Would be good to add a real testcase here
+ memcpy(resp.d.asBytes,xdata, 16);
+ resp.arg[0] = 2;
+ }
+
+ //End hack
+
+
+ UsbCommand c = {CMD_READER_ICLASS, {0}};
+ c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE| FLAG_ICLASS_READER_GET_CC;
+ if(!fake_dummy_test)
+ SendCommand(&c);
+
+
+
+ if (fake_dummy_test || WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
uint8_t isOK = resp.arg[0] & 0xff;
uint8_t * data = resp.d.asBytes;
printvar("hash1", key_index,8);
for(i = 0; i < 8 ; i++)
key_sel[i] = keytable[key_index[i]] & 0xFF;
+ PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:");
printvar("k_sel", key_sel,8);
//Permute from iclass format to standard format
permutekey_rev(key_sel,key_sel_p);
used_key = KEY;
}
+
+ PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:");
printvar("Used key",used_key,8);
diversifyKey(CSN,used_key, div_key);
+ PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):");
printvar("Div key", div_key, 8);
printvar("CC_NR:",CCNR,12);
doMAC(CCNR,12,div_key, MAC);
UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
memcpy(d.d.asBytes, MAC, 4);
- SendCommand(&d);
+ if(!fake_dummy_test) SendCommand(&d);
}else{
PrintAndLog("Failed to obtain CC! Aborting");
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
- {"list", CmdHFiClassList, 0, "List iClass history"},
+ {"list", CmdHFiClassList, 0, "[Deprecated] List iClass history"},
{"snoop", CmdHFiClassSnoop, 0, "Eavesdrop iClass communication"},
{"sim", CmdHFiClassSim, 0, "Simulate iClass tag"},
{"reader",CmdHFiClassReader, 0, "Read an iClass tag"},
projects / proxmark3-svn / blobdiff