}
int usage_lf_hid_brute(void){
PrintAndLog("Enables bruteforce of HID readers with specified facility code.");
- PrintAndLog("Different formatlength is supported");
- PrintAndLog("This is a incremental attack against reader.");
+ PrintAndLog("This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step");
+ PrintAndLog("if cardnumber is not given, it starts with 1 and goes up to 65535");
PrintAndLog("");
- PrintAndLog("Usage: lf hid brute [h] <format length> <facility code>");
+ PrintAndLog("Usage: lf hid brute [h] a <format> f <facility-code> c <cardnumber> d <delay>");
PrintAndLog("Options :");
- PrintAndLog(" h - This help");
- PrintAndLog(" <format length> - 26|33|34|35|37|40|44|84");
- PrintAndLog(" <facility code> - 8-bit value HID facility code");
+ PrintAndLog(" h : This help");
+ PrintAndLog(" a <format> : 26|33|34|35|37|40|44|84");
+ PrintAndLog(" f <facility-code> : 8-bit value HID facility code");
+ PrintAndLog(" c <cardnumber> : (optional) cardnumber to start with, max 65535");
+ PrintAndLog(" d <delay> : delay betweens attempts in ms. Default 1000ms");
PrintAndLog("");
- PrintAndLog("Sample : lf hid brute 26 224");
+ PrintAndLog("Samples:");
+ PrintAndLog(" lf hid brute a 26 f 224");
+ PrintAndLog(" lf hid brute a 26 f 21 d 2000");
+ PrintAndLog(" lf hid brute a 26 f 21 c 200 d 2000");
return 0;
}
+static int sendPing(void){
+ UsbCommand ping = {CMD_PING, {1, 2, 3}};
+ SendCommand(&ping);
+ SendCommand(&ping);
+ SendCommand(&ping);
+ clearCommandBuffer();
+ UsbCommand resp;
+ if (WaitForResponseTimeout(CMD_ACK, &resp, 1000))
+ return 0;
+ return 1;
+}
+static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs){
+
+ PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
+
+ calcWiegand( fmtlen, fc, cn, bs);
+
+ uint64_t arg1 = bytebits_to_byte(bs,32);
+ uint64_t arg2 = bytebits_to_byte(bs+32,32);
+ UsbCommand c = {CMD_HID_SIM_TAG, {arg1, arg2, 0}};
+ clearCommandBuffer();
+ SendCommand(&c);
+ msleep(delay);
+ sendPing();
+ return TRUE;
+}
+
int CmdHIDDemodFSK(const char *Cmd) {
int findone = ( Cmd[0] == '1' ) ? 1 : 0;
UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}};
int CmdHIDClone(const char *Cmd) {
- unsigned int hi2 = 0, hi = 0, lo = 0;
+ uint32_t hi2 = 0, hi = 0, lo = 0;
int n = 0, i = 0;
UsbCommand c;
size_t Wiegand_n;
} wiegand_t;
-// static void addHIDMarker(uint8_t fmtlen, uint8_t *out) {
-
-// }
-//static void getParity26(uint32_t *hi, uint32_t *lo){
- // uint32_t result = 0;
- // int i;
- // // even parity
- // for (i = 24;i >= 13;i--)
- // result ^= (*lo >> i) & 1;
- // // even parity 26th bit
- // *lo |= result << 25;
-
- // // odd parity
- // result = 0;
- // for (i = 12;i >= 1;i--)
- // result ^= (*lo >> i) & 1;
- // *lo |= !result;
-//}
-
-// static void getParity33(uint32_t *hi, uint32_t *lo){
+static void addHIDMarker(uint8_t fmtlen, uint8_t *out) {
+ switch(fmtlen) {
+ case 26:{
+ uint8_t len = 37;
+ uint8_t tmp[len];
+ memset(tmp, 0, len);
+ uint8_t idx = 37-fmtlen;
+ memcpy(tmp+idx, out, fmtlen);
+ tmp[idx] = 1; // start sentinel?
+ tmp[0] = 1; // bit indicates that a format smaller than 37 is used
+ memcpy(out, tmp, len);
+ break;
+ }
+ case 34:
+ // set bit format for less than 37 bit format
+ // 5+32= 1
+ //*hi = (1 << 5) | (fc >> 15);
+ break;
+ default:break;
+ }
+}
-// }
// static void getParity34(uint32_t *hi, uint32_t *lo){
// uint32_t result = 0;
// int i;
// *lo |= !result;
// }
-// static void getParity35(uint32_t *hi, uint32_t *lo){
-// }
-// static void getParity37S(uint32_t *hi,uint32_t *lo){
- // uint32_t result = 0;
- // int i;
-
- // // even parity
- // for (i = 4; i >= 0; i--)
- // result ^= (*hi >> i) & 1;
-
- // for (i = 31; i >= 20; i--)
- // result ^= (*lo >> i) & 1;
-
- // *hi |= result;
-
- // // odd parity
- // result = 0;
- // for (i = 19; i >= 1; i--)
- // result ^= (*lo >> i) & 1;
-
- // *lo |= result;
-// }
// static void getParity37H(uint32_t *hi, uint32_t *lo){
// uint32_t result = 0;
// int i;
// *lo |= result;
// }
-//static void calc26(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
-void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){
-
+//static void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){
+static void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){
uint8_t wiegand[24];
num_to_bytebits(fc, 8, wiegand);
num_to_bytebits(cardno, 16, wiegand+8);
wiegand_add_parity(out, wiegand, sizeof(wiegand) );
-
-// *out |= (1 << 26); // why this?
-// *out |= (1 << 37); // bit format for hid?
}
-// static void calc33(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
-
-// }
-// static void calc34(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
- // // put card number first bit 1 .. 20 //
- // *lo = ((cardno & 0X000F7FFF) << 1) | ((fc & 0XFFFF) << 17);
- // // set bit format for less than 37 bit format
- // *hi = (1 << 5) | (fc >> 15);
+// static void calc33(uint16_t fc, uint32_t cardno, uint8_t *out){
// }
-// static void calc35(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
+static void calc34(uint16_t fc, uint32_t cardno, uint8_t *out){
+ uint8_t wiegand[32];
+ num_to_bytebits(fc, 16, wiegand);
+ num_to_bytebits(cardno, 16, wiegand + 16);
+ wiegand_add_parity(out, wiegand, sizeof(wiegand) );
+}
+// static void calc35(uint16_t fc, uint32_t cardno, uint8_t *out){
// *lo = ((cardno & 0xFFFFF) << 1) | fc << 21;
// *hi = (1 << 5) | ((fc >> 11) & 1);
// }
-// static void calc37S(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
- // // FC 2 - 17 - 16 bit
- // // cardno 18 - 36 - 19 bit
- // // Even P1 1 - 19
- // // Odd P37 19 - 36
-
- // fc = fc & 0xFFFF;
- // *lo = ((fc << 20) | (cardno & 0x7FFFF) << 1);
- // *hi = (fc >> 12);
-// }
-// static void calc37H(uint64_t cardno, uint32_t *hi, uint32_t *lo){
- // // SC NONE
- // // cardno 1-35 34 bits
- // // Even Parity 0th bit 1-18
- // // Odd Parity 36th bit 19-35
- // cardno = (cardno & 0x00000003FFFFFFFF);
- // *lo = (cardno << 1);
- // *hi = (cardno >> 31);
-// }
-// static void calc40(uint64_t cardno, uint32_t *hi, uint32_t *lo){
+static void calc37S(uint16_t fc, uint32_t cardno, uint8_t *out){
+ // FC 2 - 17 - 16 bit
+ // cardno 18 - 36 - 19 bit
+ // Even P1 1 - 19
+ // Odd P37 19 - 36
+ uint8_t wiegand[35];
+ num_to_bytebits(fc, 16, wiegand);
+ num_to_bytebits(cardno, 19, wiegand + 16);
+ wiegand_add_parity(out, wiegand, sizeof(wiegand) );
+}
+static void calc37H(uint64_t cardno, uint8_t *out){
+ // SC NONE
+ // cardno 1-35 34 bits
+ // Even Parity 0th bit 1-18
+ // Odd Parity 36th bit 19-35
+ uint8_t wiegand[37];
+ num_to_bytebits( (uint32_t)(cardno >> 32), 2, wiegand);
+ num_to_bytebits( (uint32_t)(cardno >> 0), 32, wiegand + 2);
+ wiegand_add_parity(out, wiegand, sizeof(wiegand) );
+
+ printf("%x %x\n", (uint32_t)(cardno >> 32), (uint32_t)cardno );
+}
+// static void calc40(uint64_t cardno, uint8_t *out){
// cardno = (cardno & 0xFFFFFFFFFF);
// *lo = ((cardno & 0xFFFFFFFF) << 1 );
// *hi = (cardno >> 31);
// }
-static void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){
-
- // uint32_t hi = 0, lo = 0;
- // uint32_t cn32 = (cardno & 0xFFFFFFFF);
- // switch ( fmtlen ) {
- // case 26 : {
- // calc26(fc, cn32, bits);
- // addHIDFormatMarker(fmtlen, bits);
- // break;
- // }
- // case 33 : {
- // // calc33(fc, cn32, hi, lo);
- // // getParity33(hi, lo);
- // break;
- // }
- // case 34 : {
- // calc34(fc, cn32, hi, lo);
- // getParity34(hi, lo);
- // break;
- // }
- // case 35 : {
- // calc35(fc, cn32, hi, lo);
- // getParity35(hi, lo);
- // break;
- // }
- // case 37 : {
- // calc37S(fc, cn32, hi, lo);
- // getParity37S(hi, lo);
- // break;
- // }
- // case 38 : {
- // calc37H(cn32, hi, lo);
- // getParity37H(hi, lo);
- // break;
- // }
- // case 40 : calc40(cardno, hi, lo); break;
+void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){
+ uint32_t cn32 = (cardno & 0xFFFFFFFF);
+ switch ( fmtlen ) {
+ case 26: calc26(fc, cn32, bits); break;
+ // case 33 : calc33(fc, cn32, bits); break;
+ case 34: calc34(fc, cn32, bits); break;
+ // case 35 : calc35(fc, cn32, bits); break;
+ case 37: calc37S(fc, cn32, bits); break;
+ case 38: calc37H(cardno, bits); break;
+ // case 40 : calc40(cardno, bits); break;
// case 44 : { break; }
// case 84 : { break; }
- // }
-
+ default: break;
+ }
}
int CmdHIDWiegand(const char *Cmd) {
uint32_t oem = 0, fc = 0;
uint64_t cardnum = 0;
-
- uint32_t blocks[2], wiegand[2];
+ uint64_t blocks = 0, wiegand = 0;
uint8_t bits[96];
uint8_t *bs = bits;
fc = param_get32ex(Cmd, 1, 0, 10);
cardnum = param_get64ex(Cmd, 2, 0, 10);
- //
- uint8_t ftmlen[] = {26,33,34,35,37,38,40};
+ uint8_t fmtlen[] = {26,33,34,35,37,38,40};
- PrintAndLog("HID | FC | CN | Wiegand | HID Formatted");
- PrintAndLog("----+-----+-------+-----------+--------------------");
- for (uint8_t i = 0; i < sizeof(ftmlen); i++){
- calcWiegand( ftmlen[i], fc, cardnum, bs);
- blocks[0] = bytebits_to_byte(bs,32);
- blocks[1] = bytebits_to_byte(bs+32,32);
- PrintAndLog(" %d | %d | %llu | %08X%08X | %08X%08X ",
- ftmlen,
+ PrintAndLog("HID | OEM | FC | CN | Wiegand | HID Formatted");
+ PrintAndLog("----+-----+------+---------+-----------+--------------------");
+ for (uint8_t i = 0; i < sizeof(fmtlen); i++){
+ memset(bits, 0x00, sizeof(bits));
+ calcWiegand( fmtlen[i], fc, cardnum, bs);
+ printf("ice:: %s", sprint_bin(bs, fmtlen[i]));
+ wiegand = (uint64_t)bytebits_to_byte(bs, 32) << 32 | bytebits_to_byte(bs+32, 32);
+
+ addHIDMarker(fmtlen[i], bs);
+ printf("ice:: %s", sprint_bin(bs, 37));
+ blocks = (uint64_t)bytebits_to_byte(bs, 32) << 32 | bytebits_to_byte(bs+32, 32);
+ uint8_t shifts = 64-fmtlen[i];
+ wiegand >>= shifts;
+
+ PrintAndLog(" %u | %03u | %03u | %llu | %llX | %llX",
+ fmtlen[i],
+ oem,
fc,
cardnum,
- wiegand[0],
- wiegand[1],
- blocks[0],
- blocks[1]
+ wiegand,
+ blocks
);
}
- PrintAndLog("----+-----+-------+-----------+--------------------");
+ PrintAndLog("----+-----+-----+-------+-----------+--------------------");
return 0;
}
int CmdHIDBrute(const char *Cmd){
- bool error = TRUE;
- uint8_t fc = 0, fmtlen = 0;
-
+ bool errors = false;
+ uint32_t fc = 0, cn = 0, delay = 1000;
+ uint8_t fmtlen = 0;
uint8_t bits[96];
uint8_t *bs = bits;
memset(bs, 0, sizeof(bits));
-
- UsbCommand c = {CMD_HID_SIM_TAG, {0, 0, 0}};
-
- char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 2 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_hid_brute();
-
- fmtlen = param_get8(Cmd, 0);
- uint8_t ftms[] = {26,33,34,35,37};
- for ( uint8_t i = 0; i < sizeof(ftms); i++){
- if ( ftms[i] == fmtlen ) {
- error = FALSE;
+ uint8_t cmdp = 0;
+
+ while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
+ switch(param_getchar(Cmd, cmdp)) {
+ case 'h':
+ case 'H':
+ return usage_lf_hid_brute();
+ case 'f':
+ case 'F':
+ fc = param_get32ex(Cmd ,cmdp+1, 0, 10);
+ if ( !fc )
+ errors = true;
+ cmdp += 2;
+ break;
+ case 'd':
+ case 'D':
+ // delay between attemps, defaults to 1000ms.
+ delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
+ cmdp += 2;
+ break;
+ case 'c':
+ case 'C':
+ cn = param_get32ex(Cmd, cmdp+1, 0, 10);
+ // truncate cardnumber.
+ cn &= 0xFFFF;
+ cmdp += 2;
+ break;
+ case 'a':
+ case 'A':
+ fmtlen = param_get8(Cmd, cmdp+1);
+ cmdp += 2;
+ bool is_ftm_ok = FALSE;
+ uint8_t ftms[] = {26,33,34,35,37};
+ for ( uint8_t i = 0; i < sizeof(ftms); i++){
+ if ( ftms[i] == fmtlen ) {
+ is_ftm_ok = TRUE;
+ }
+ }
+ // negated
+ errors = !is_ftm_ok;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
}
}
-
- if ( error ) return usage_lf_hid_brute();
-
- fc = param_get8(Cmd, 1);
- if ( fc == 0) return usage_lf_hid_brute();
+ if ( fc == 0 ) errors = true;
+ if ( errors ) return usage_lf_hid_brute();
PrintAndLog("Brute-forcing HID reader");
PrintAndLog("Press pm3-button to abort simulation or run another command");
-
- for ( uint16_t cn = 1; cn < 0xFFFF; ++cn){
+
+ uint16_t up = cn;
+ uint16_t down = cn;
+
+ for (;;){
+
+ if ( offline ) {
+ printf("Device offline\n");
+ return 2;
+ }
+
if (ukbhit()) {
PrintAndLog("aborted via keyboard!");
- c.cmd = CMD_PING;
- c.arg[0] = 0x00;
- c.arg[1] = 0x00;
- c.arg[2] = 0x00;
- clearCommandBuffer();
- SendCommand(&c);
- return 1;
+ return sendPing();
}
-
- calcWiegand( fmtlen, fc, cn, bs);
-
- c.arg[0] = bytebits_to_byte(bs,32);
- c.arg[1] = bytebits_to_byte(bs+32,32);
- clearCommandBuffer();
- SendCommand(&c);
- PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
- // pause
- sleep(1);
+ // Do one up
+ if ( up < 0xFFFF )
+ if ( !sendTry(fmtlen, fc, up++, delay, bs)) return 1;
+
+ // Do one down (if cardnumber is given)
+ if ( cn > 1 )
+ if ( down > 1 )
+ if ( !sendTry(fmtlen, fc, --down, delay, bs)) return 1;
}
return 0;
}
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
- {"fskdemod",CmdHIDDemodFSK, 0, "[1] Realtime HID FSK demodulator (option '1' for one tag only)"},
- {"sim", CmdHIDSim, 0, "<ID> -- HID tag simulator"},
- {"clone", CmdHIDClone, 0, "<ID> [L] -- Clone HID to T55x7"},
- {"wiegand", CmdHIDWiegand, 0, "<OEM> <facility code> <card number> -- convert facility code/card number to Wiegand code"},
- {"brute", CmdHIDBrute, 0, "<format length> <facility code> -- brute force card number"},
+ {"fskdemod",CmdHIDDemodFSK, 0, "Realtime HID FSK demodulator"},
+ {"sim", CmdHIDSim, 0, "HID tag simulator"},
+ {"clone", CmdHIDClone, 0, "Clone HID to T55x7"},
+ {"wiegand", CmdHIDWiegand, 1, "Convert facility code/card number to Wiegand code"},
+ {"brute", CmdHIDBrute, 0, "Bruteforce card number against reader"},
{NULL, NULL, 0, NULL}
};
projects / proxmark3-svn / blobdiff