+ // // even parity
+ // for (i = 7;i >= 0;i--)
+ // result ^= (*hi >> i) & i;
+ // for (i = 31;i >= 24;i--)
+ // result ^= (*lo >> i) & 1;
+
+ // *hi |= result << 2;
+
+ // // odd parity bit
+ // result = 0;
+ // for (i = 23;i >= 1;i--)
+ // result ^= (*lo >> i) & 1;
+
+ // *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;
+
+ // // even parity
+ // for (i = 4;i >= 0;i--)
+ // result ^= (*hi >> i) & 1;
+ // for (i = 31;i >= 20;i--)
+ // result ^= (*lo >> i) & 1;
+ // *hi |= result << 4;
+
+ // // odd parity
+ // result = 0;
+ // for (i = 19;i >= 1;i--)
+ // result ^= (*lo >> i) & 1;
+ // *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){
+
+ 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 calc35(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
+ // *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){
+ // cardno = (cardno & 0xFFFFFFFFFF);
+ // *lo = ((cardno & 0xFFFFFFFF) << 1 );
+ // *hi = (cardno >> 31);
+// }
+
+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;
+ // case 44 : { break; }
+ // case 84 : { break; }
+ // }
+
+}
+
+int CmdHIDWiegand(const char *Cmd) {
+ uint32_t oem = 0, fc = 0;
+ uint64_t cardnum = 0;
+
+ uint32_t blocks[2] = {0,0};
+ uint32_t wiegand[2] = {0,0};
+
+ uint8_t bits[96];
+ uint8_t *bs = bits;
+ memset(bs, 0, sizeof(bits));
+
+ uint8_t ctmp = param_getchar(Cmd, 0);
+ if ( strlen(Cmd) == 0 || strlen(Cmd) < 3 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_wiegand();
+
+ oem = param_get8(Cmd, 0);
+ fc = param_get32ex(Cmd, 1, 0, 10);
+ cardnum = param_get64ex(Cmd, 2, 0, 10);
+
+ //
+ uint8_t ftmlen[] = {26,33,34,35,37,38,40};
+
+ PrintAndLog("HID | OEM | 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 | %d | %llu | %08X%08X | %08X%08X ",
+ ftmlen,
+ oem,
+ fc,
+ cardnum,
+ wiegand[0],
+ wiegand[1],
+ blocks[0],
+ blocks[1]
+ );
+ }
+ PrintAndLog("----+-----+-----+-------+-----------+--------------------");
+ return 0;
+}
+
+int CmdHIDBrute(const char *Cmd){
+
+ 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));
+ 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 ( 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");
+
+ uint16_t up = cn;
+ uint16_t down = cn;
+
+ for (;;){
+
+ if ( offline ) {
+ printf("Device offline\n");
+ return 2;
+ }
+
+ if (ukbhit()) {
+ PrintAndLog("aborted via keyboard!");
+ return sendPing();
+ }
+
+ // 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, "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