X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/dd0434a6ed45d2128bb687f4cacbed7ae00cd586..3e82f956d834faf9e78d9c3c2fccfb98d8041bcb:/client/cmdlft55xx.c
diff --git a/client/cmdlft55xx.c b/client/cmdlft55xx.c
index a86dd423..6ddd84b1 100644
--- a/client/cmdlft55xx.c
+++ b/client/cmdlft55xx.c
@@ -10,7 +10,6 @@
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
-//#include <time.h>
#include "proxmark3.h"
#include "ui.h"
#include "graph.h"
@@ -22,7 +21,7 @@
#include "util.h"
#include "data.h"
#include "lfdemod.h"
-#include "cmdhf14a.h"
+#include "cmdhf14a.h" //for getTagInfo
#define T55x7_CONFIGURATION_BLOCK 0x00
#define T55x7_PAGE0 0x00
@@ -49,6 +48,7 @@ int usage_t55xx_config(){
PrintAndLog(" i [1] Invert data signal, defaults to normal");
PrintAndLog(" o [offset] Set offset, where data should start decode in bitstream");
PrintAndLog(" Q5 Set as Q5(T5555) chip instead of T55x7");
+ PrintAndLog(" ST Set Sequence Terminator on");
PrintAndLog("");
PrintAndLog("Examples:");
PrintAndLog(" lf t55xx config d FSK - FSK demodulation");
@@ -164,12 +164,27 @@ int usage_t55xx_bruteforce(){
PrintAndLog("");
return 0;
}
-int usage_t55xx_wipe(){
+int usage_t55xx_recoverpw(){
+ PrintAndLog("This command uses a few tricks to try to recover mangled password");
+ PrintAndLog("WARNING: this may brick non-password protected chips!");
+ PrintAndLog("Usage: lf t55xx recoverpw [password]");
+ PrintAndLog(" password must be 4 bytes (8 hex symbols)");
+ PrintAndLog(" default password is 51243648, used by many cloners");
+ PrintAndLog("Options:");
+ PrintAndLog(" h - this help");
+ PrintAndLog(" [password] - 4 byte hex value of password written by cloner");
+ PrintAndLog("");
+ PrintAndLog("Examples:");
+ PrintAndLog(" lf t55xx recoverpw");
+ PrintAndLog(" lf t55xx recoverpw 51243648");
+ PrintAndLog("");
+ return 0;
+}int usage_t55xx_wipe(){
PrintAndLog("Usage: lf t55xx wipe [h] [Q5]");
PrintAndLog("This commands wipes a tag, fills blocks 1-7 with zeros and a default configuration block");
PrintAndLog("Options:");
PrintAndLog(" h - this help");
- PrintAndLog(" Q5 - indicates to use the T555 (Q5) default configuration block");
+ PrintAndLog(" Q5 - indicates to use the T5555 (Q5) default configuration block");
PrintAndLog("");
PrintAndLog("Examples:");
PrintAndLog(" lf t55xx wipe - wipes a t55x7 tag, config block 0x000880E0");
@@ -269,6 +284,11 @@ int CmdT55xxSetConfig(const char *Cmd) {
config.Q5 = TRUE;
cmdp++;
break;
+ case 'S':
+ case 's':
+ config.ST = TRUE;
+ cmdp++;
+ break;
default:
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = TRUE;
@@ -371,6 +391,7 @@ bool DecodeT55xxBlock(){
char buf[30] = {0x00};
char *cmdStr = buf;
int ans = 0;
+ bool ST = config.ST;
uint8_t bitRate[8] = {8,16,32,40,50,64,100,128};
DemodBufferLen = 0x00;
@@ -391,7 +412,7 @@ bool DecodeT55xxBlock(){
break;
case DEMOD_ASK:
snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted );
- ans = ASKDemod(cmdStr, FALSE, FALSE, 1);
+ ans = ASKDemod_ext(cmdStr, FALSE, FALSE, 1, &ST);
break;
case DEMOD_PSK1:
// skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
@@ -496,6 +517,7 @@ bool tryDetectModulation(){
tests[hits].bitrate = bitRate;
tests[hits].inverted = FALSE;
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
+ tests[hits].ST = FALSE;
++hits;
}
if ( FSKrawDemod("0 1", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
@@ -507,19 +529,22 @@ bool tryDetectModulation(){
tests[hits].bitrate = bitRate;
tests[hits].inverted = TRUE;
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
+ tests[hits].ST = FALSE;
++hits;
}
} else {
clk = GetAskClock("", FALSE, FALSE);
if (clk>0) {
- if ( ASKDemod("0 0 1", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
+ tests[hits].ST = TRUE;
+ if ( ASKDemod_ext("0 0 1", FALSE, FALSE, 1, &tests[hits].ST) && test(DEMOD_ASK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
tests[hits].modulation = DEMOD_ASK;
tests[hits].bitrate = bitRate;
tests[hits].inverted = FALSE;
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
++hits;
}
- if ( ASKDemod("0 1 1", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
+ tests[hits].ST = TRUE;
+ if ( ASKDemod_ext("0 1 1", FALSE, FALSE, 1, &tests[hits].ST) && test(DEMOD_ASK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
tests[hits].modulation = DEMOD_ASK;
tests[hits].bitrate = bitRate;
tests[hits].inverted = TRUE;
@@ -531,6 +556,7 @@ bool tryDetectModulation(){
tests[hits].bitrate = bitRate;
tests[hits].inverted = FALSE;
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
+ tests[hits].ST = FALSE;
++hits;
}
if ( ASKbiphaseDemod("0 0 1 2", FALSE) && test(DEMOD_BIa, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5) ) {
@@ -538,6 +564,7 @@ bool tryDetectModulation(){
tests[hits].bitrate = bitRate;
tests[hits].inverted = TRUE;
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
+ tests[hits].ST = FALSE;
++hits;
}
}
@@ -550,6 +577,7 @@ bool tryDetectModulation(){
tests[hits].bitrate = bitRate;
tests[hits].inverted = FALSE;
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
+ tests[hits].ST = FALSE;
++hits;
}
@@ -558,6 +586,7 @@ bool tryDetectModulation(){
tests[hits].bitrate = bitRate;
tests[hits].inverted = TRUE;
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
+ tests[hits].ST = FALSE;
++hits;
}
}
@@ -573,6 +602,7 @@ bool tryDetectModulation(){
tests[hits].bitrate = bitRate;
tests[hits].inverted = FALSE;
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
+ tests[hits].ST = FALSE;
++hits;
}
if ( PSKDemod("0 1 6", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
@@ -580,6 +610,7 @@ bool tryDetectModulation(){
tests[hits].bitrate = bitRate;
tests[hits].inverted = TRUE;
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
+ tests[hits].ST = FALSE;
++hits;
}
// PSK2 - needs a call to psk1TOpsk2.
@@ -590,6 +621,7 @@ bool tryDetectModulation(){
tests[hits].bitrate = bitRate;
tests[hits].inverted = FALSE;
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
+ tests[hits].ST = FALSE;
++hits;
}
} // inverse waves does not affect this demod
@@ -601,6 +633,7 @@ bool tryDetectModulation(){
tests[hits].bitrate = bitRate;
tests[hits].inverted = FALSE;
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
+ tests[hits].ST = FALSE;
++hits;
}
} // inverse waves does not affect this demod
@@ -615,6 +648,7 @@ bool tryDetectModulation(){
config.offset = tests[0].offset;
config.block0 = tests[0].block0;
config.Q5 = tests[0].Q5;
+ config.ST = tests[0].ST;
printConfiguration( config );
return TRUE;
}
@@ -767,14 +801,14 @@ bool test(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t clk, bool *Q5)
uint8_t extend = PackBits(si, 1, DemodBuffer); si += 1; //bit 15 extended mode
uint8_t modread = PackBits(si, 5, DemodBuffer); si += 5+2+1;
//uint8_t pskcr = PackBits(si, 2, DemodBuffer); si += 2+1; //could check psk cr
- uint8_t nml01 = PackBits(si, 1, DemodBuffer); si += 1+5; //bit 24, 30, 31 could be tested for 0 if not extended mode
- uint8_t nml02 = PackBits(si, 2, DemodBuffer); si += 2;
+ //uint8_t nml01 = PackBits(si, 1, DemodBuffer); si += 1+5; //bit 24, 30, 31 could be tested for 0 if not extended mode
+ //uint8_t nml02 = PackBits(si, 2, DemodBuffer); si += 2;
//if extended mode
bool extMode =( (safer == 0x6 || safer == 0x9) && extend) ? TRUE : FALSE;
if (!extMode){
- if (nml01 || nml02 || xtRate) continue;
+ if (xtRate) continue; //nml01 || nml02 || caused issues on noralys tags
}
//test modulation
if (!testModulation(mode, modread)) continue;
@@ -838,6 +872,7 @@ int printConfiguration( t55xx_conf_block_t b){
PrintAndLog("Bit Rate : %s", GetBitRateStr(b.bitrate) );
PrintAndLog("Inverted : %s", (b.inverted) ? "Yes" : "No" );
PrintAndLog("Offset : %d", b.offset);
+ PrintAndLog("Seq. Term. : %s", (b.ST) ? "Yes" : "No" );
PrintAndLog("Block0 : 0x%08X", b.block0);
PrintAndLog("");
return 0;
@@ -956,8 +991,7 @@ int CmdT55xxReadTrace(const char *Cmd) {
if ( config.Q5 ){
if (!DecodeT5555TraceBlock()) return 0;
- }
- else {
+ } else {
if (!DecodeT55xxBlock()) return 0;
}
@@ -1009,7 +1043,7 @@ int CmdT55xxReadTrace(const char *Cmd) {
} else {
- t55xx_tracedata_t data = {.bl1 = bl1, .bl2 = bl2, .acl = 0, .mfc = 0, .cid = 0, .year = 0, .quarter = 0, .icr = 0, .lotid = 0, .wafer = 0, .dw = 0};
+ t55x7_tracedata_t data = {.bl1 = bl1, .bl2 = bl2, .acl = 0, .mfc = 0, .cid = 0, .year = 0, .quarter = 0, .icr = 0, .lotid = 0, .wafer = 0, .dw = 0};
data.acl = PackBits(si, 8, DemodBuffer); si += 8;
if ( data.acl != 0xE0 ) {
@@ -1033,14 +1067,13 @@ int CmdT55xxReadTrace(const char *Cmd) {
else
data.year += 2010;
-
- printT55xxTrace(data, repeat);
+ printT55x7Trace(data, repeat);
}
return 0;
}
-void printT55xxTrace( t55xx_tracedata_t data, uint8_t repeat ){
- PrintAndLog("-- T55xx Trace Information ----------------------------------");
+void printT55x7Trace( t55x7_tracedata_t data, uint8_t repeat ){
+ PrintAndLog("-- T55x7 Trace Information ----------------------------------");
PrintAndLog("-------------------------------------------------------------");
PrintAndLog(" ACL Allocation class (ISO/IEC 15963-1) : 0x%02X (%d)", data.acl, data.acl);
PrintAndLog(" MFC Manufacturer ID (ISO/IEC 7816-6) : 0x%02X (%d) - %s", data.mfc, data.mfc, getTagInfo(data.mfc));
@@ -1074,6 +1107,7 @@ void printT55xxTrace( t55xx_tracedata_t data, uint8_t repeat ){
18-32 DW, die number sequential
*/
}
+
void printT5555Trace( t5555_tracedata_t data, uint8_t repeat ){
PrintAndLog("-- T5555 (Q5) Trace Information -----------------------------");
PrintAndLog("-------------------------------------------------------------");
@@ -1101,6 +1135,7 @@ void printT5555Trace( t5555_tracedata_t data, uint8_t repeat ){
*/
}
+//need to add Q5 info...
int CmdT55xxInfo(const char *Cmd){
/*
Page 0 Block 0 Configuration data.
@@ -1144,7 +1179,7 @@ int CmdT55xxInfo(const char *Cmd){
if (config.Q5) PrintAndLog("*** Warning *** Config Info read off a Q5 will not display as expected");
PrintAndLog("");
- PrintAndLog("-- T55xx Configuration & Tag Information --------------------");
+ PrintAndLog("-- T55x7 Configuration & Tag Information --------------------");
PrintAndLog("-------------------------------------------------------------");
PrintAndLog(" Safer key : %s", GetSaferStr(safer));
PrintAndLog(" reserved : %d", resv);
@@ -1377,17 +1412,18 @@ int CmdT55xxBruteForce(const char *Cmd) {
char buf[9];
char filename[FILE_PATH_SIZE]={0};
int keycnt = 0;
+ int ch;
uint8_t stKeyBlock = 20;
- uint8_t *keyBlock = NULL, *p;
- keyBlock = calloc(stKeyBlock, 6);
- if (keyBlock == NULL) return 1;
-
+ uint8_t *keyBlock = NULL, *p = NULL;
uint32_t start_password = 0x00000000; //start password
uint32_t end_password = 0xFFFFFFFF; //end password
bool found = false;
char cmdp = param_getchar(Cmd, 0);
- if (cmdp == 'h' || cmdp == 'H') return usage_t55xx_bruteforce();
+ if (cmdp == 'h' || cmdp == 'H') return usage_t55xx_bruteforce();
+
+ keyBlock = calloc(stKeyBlock, 6);
+ if (keyBlock == NULL) return 1;
if (cmdp == 'i' || cmdp == 'I') {
@@ -1423,6 +1459,7 @@ int CmdT55xxBruteForce(const char *Cmd) {
if (!p) {
PrintAndLog("Cannot allocate memory for defaultKeys");
free(keyBlock);
+ fclose(f);
return 2;
}
keyBlock = p;
@@ -1437,6 +1474,7 @@ int CmdT55xxBruteForce(const char *Cmd) {
if (keycnt == 0) {
PrintAndLog("No keys found in file");
+ free(keyBlock);
return 1;
}
PrintAndLog("Loaded %d keys", keycnt);
@@ -1446,8 +1484,10 @@ int CmdT55xxBruteForce(const char *Cmd) {
for (uint16_t c = 0; c < keycnt; ++c ) {
if (ukbhit()) {
- getchar();
+ ch = getchar();
+ (void)ch;
printf("\naborted via keyboard!\n");
+ free(keyBlock);
return 0;
}
@@ -1458,6 +1498,7 @@ int CmdT55xxBruteForce(const char *Cmd) {
if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, TRUE, testpwd)) {
PrintAndLog("Aquireing data from device failed. Quitting");
+ free(keyBlock);
return 0;
}
@@ -1465,10 +1506,12 @@ int CmdT55xxBruteForce(const char *Cmd) {
if ( found ) {
PrintAndLog("Found valid password: [%08X]", testpwd);
+ free(keyBlock);
return 0;
}
}
PrintAndLog("Password NOT found.");
+ free(keyBlock);
return 0;
}
@@ -1478,7 +1521,10 @@ int CmdT55xxBruteForce(const char *Cmd) {
start_password = param_get32ex(Cmd, 0, 0, 16);
end_password = param_get32ex(Cmd, 1, 0, 16);
- if ( start_password >= end_password ) return usage_t55xx_bruteforce();
+ if ( start_password >= end_password ) {
+ free(keyBlock);
+ return usage_t55xx_bruteforce();
+ }
PrintAndLog("Search password range [%08X -> %08X]", start_password, end_password);
@@ -1489,13 +1535,16 @@ int CmdT55xxBruteForce(const char *Cmd) {
printf(".");
fflush(stdout);
if (ukbhit()) {
- getchar();
+ ch = getchar();
+ (void)ch;
printf("\naborted via keyboard!\n");
+ free(keyBlock);
return 0;
}
if (!AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, TRUE, i)) {
PrintAndLog("Aquireing data from device failed. Quitting");
+ free(keyBlock);
return 0;
}
found = tryDetectModulation();
@@ -1510,9 +1559,101 @@ int CmdT55xxBruteForce(const char *Cmd) {
PrintAndLog("Found valid password: [%08x]", i);
else
PrintAndLog("Password NOT found. Last tried: [%08x]", --i);
+
+ free(keyBlock);
return 0;
}
+int tryOnePassword(uint32_t password)
+{
+ PrintAndLog("Trying password %08x", password);
+ if (!AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, TRUE, password)) {
+ PrintAndLog("Aquireing data from device failed. Quitting");
+ return -1;
+ }
+
+ if (tryDetectModulation())
+ return 1;
+ else return 0;
+}
+
+int CmdT55xxRecoverPW(const char *Cmd) {
+ int bit = 0;
+ uint32_t orig_password = 0x0;
+ uint32_t curr_password = 0x0;
+ uint32_t prev_password = 0xffffffff;
+ uint32_t mask = 0x0;
+ int found = 0;
+
+ char cmdp = param_getchar(Cmd, 0);
+ if (cmdp == 'h' || cmdp == 'H') return usage_t55xx_recoverpw();
+
+ orig_password = param_get32ex(Cmd, 0, 0x51243648, 16); //password used by handheld cloners
+
+ // first try fliping each bit in the expected password
+ while ((found != 1) && (bit < 32)) {
+ curr_password = orig_password ^ ( 1 << bit );
+ found = tryOnePassword(curr_password);
+ if (found == 1)
+ goto done;
+ else if (found == -1)
+ return 0;
+ bit++;
+ }
+
+ // now try to use partial original password, since block 7 should have been completely
+ // erased during the write sequence and it is possible that only partial password has been
+ // written
+ // not sure from which end the bit bits are written, so try from both ends
+ // from low bit to high bit
+ bit = 0;
+ while ((found != 1) && (bit < 32)) {
+ mask += ( 1 << bit );
+ curr_password = orig_password & mask;
+ // if updated mask didn't change the password, don't try it again
+ if (prev_password == curr_password) {
+ bit++;
+ continue;
+ }
+ found = tryOnePassword(curr_password);
+ if (found == 1)
+ goto done;
+ else if (found == -1)
+ return 0;
+ bit++;
+ prev_password=curr_password;
+ }
+
+ // from high bit to low
+ bit = 0;
+ mask = 0xffffffff;
+ while ((found != 1) && (bit < 32)) {
+ mask -= ( 1 << bit );
+ curr_password = orig_password & mask;
+ // if updated mask didn't change the password, don't try it again
+ if (prev_password == curr_password) {
+ bit++;
+ continue;
+ }
+ found = tryOnePassword(curr_password);
+ if (found == 1)
+ goto done;
+ else if (found == -1)
+ return 0;
+ bit++;
+ prev_password=curr_password;
+ }
+done:
+ PrintAndLog("");
+
+ if (found == 1)
+ PrintAndLog("Found valid password: [%08x]", curr_password);
+ else
+ PrintAndLog("Password NOT found.");
+
+ return 0;
+}
+
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
{"bruteforce",CmdT55xxBruteForce,0, "<start password> <end password> [i <*.dic>] Simple bruteforce attack to find password"},
@@ -1522,20 +1663,22 @@ static command_t CommandTable[] = {
{"info", CmdT55xxInfo, 1, "[1] Show T55x7 configuration data (page 0/ blk 0)"},
{"read", CmdT55xxReadBlock, 0, "b <block> p [password] [o] [1] -- Read T55xx block data. Optional [p password], [override], [page1]"},
{"resetread", CmdResetRead, 0, "Send Reset Cmd then lf read the stream to attempt to identify the start of it (needs a demod and/or plot after)"},
+ {"recoverpw", CmdT55xxRecoverPW, 0, "[password] Try to recover from bad password write from a cloner. Only use on PW protected chips!"},
{"special", special, 0, "Show block changes with 64 different offsets"},
{"trace", CmdT55xxReadTrace, 1, "[1] Show T55x7 traceability data (page 1/ blk 0-1)"},
{"wakeup", CmdT55xxWakeUp, 0, "Send AOR wakeup command"},
- {"wipe", CmdT55xxWipe, 0, "Wipe a T55xx tag and set defaults (will destroy any data on tag)"},
+ {"wipe", CmdT55xxWipe, 0, "[q] Wipe a T55xx tag and set defaults (will destroy any data on tag)"},
{"write", CmdT55xxWriteBlock,0, "b <block> d <data> p [password] [1] -- Write T55xx block data. Optional [p password], [page1]"},
{NULL, NULL, 0, NULL}
};
int CmdLFT55XX(const char *Cmd) {
- CmdsParse(CommandTable, Cmd);
- return 0;
+ clearCommandBuffer();
+ CmdsParse(CommandTable, Cmd);
+ return 0;
}
int CmdHelp(const char *Cmd) {
- CmdsHelp(CommandTable);
- return 0;
+ CmdsHelp(CommandTable);
+ return 0;
}