CHG: removed the wiegand converting, since I'm not happy with how its implemented. This is rework in progress.

This commit is contained in:
iceman1001 2016-07-28 21:50:54 +02:00
parent 1e2bb9c9f4
commit 758f5ee3e5
2 changed files with 253 additions and 189 deletions

View file

@ -8,64 +8,62 @@
// Low frequency HID commands
//-----------------------------------------------------------------------------
#include <stdio.h>
#include <string.h>
#include "proxmark3.h"
#include "ui.h"
#include "graph.h"
#include "cmdparser.h"
#include "cmdlfhid.h"
#include "util.h"
#include "cmdmain.h"
#include "sleep.h"
static int CmdHelp(const char *Cmd);
int usage_lf_hid_wiegand(void){
PrintAndLog("Usage: lf hid wiegand [h] [OEM] [FC] [CN]");
PrintAndLog("This command converts facility code/card number to Wiegand code");
PrintAndLog("Usage: lf hid wiegand [h] [OEM] [FC] [CN]");
PrintAndLog("Options:");
PrintAndLog(" h - This help");
PrintAndLog(" OEM - OEM number");
PrintAndLog(" OEM - OEM number / site code");
PrintAndLog(" FC - facility code");
PrintAndLog(" CN - card number");
PrintAndLog("Examples:");
PrintAndLog(" lf hid wiegand 0 101 2001");
return 0;
}
int usage_lf_hid_sim(void){
PrintAndLog("HID Tag simulator");
PrintAndLog("");
PrintAndLog("Usage: lf hid sim [h] [ID]");
PrintAndLog("Options:");
PrintAndLog(" h - This help");
PrintAndLog(" ID - HID id");
PrintAndLog("Examples:");
PrintAndLog(" lf hid sim 224");
return 0;
}
int usage_lf_hid_clone(void){
PrintAndLog("Clone HID to T55x7. Tag must be on antenna. ");
PrintAndLog("");
PrintAndLog("Usage: lf hid clone [h] [ID] <L>");
PrintAndLog("Options:");
PrintAndLog(" h - This help");
PrintAndLog(" ID - HID id");
PrintAndLog(" L - 84bit ID");
PrintAndLog("Examples:");
PrintAndLog(" lf hid clone 224");
PrintAndLog(" lf hid clone 224 L");
return 0;
}
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("");
PrintAndLog("Usage: lf hid brute <format length> <facility code>");
PrintAndLog("Usage: lf hid brute [h] <format length> <facility code>");
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("");
PrintAndLog("Sample : lf hid brute 26 224");
return 0;
}
/*
int CmdHIDDemod(const char *Cmd)
{
if (GraphTraceLen < 4800) {
PrintAndLog("too short; need at least 4800 samples");
return 0;
}
GraphTraceLen = 4800;
for (int i = 0; i < GraphTraceLen; ++i) {
if (GraphBuffer[i] < 0) {
GraphBuffer[i] = 0;
} else {
GraphBuffer[i] = 1;
}
}
RepaintGraphWindow();
return 0;
}
*/
int CmdHIDDemodFSK(const char *Cmd) {
int findone = ( Cmd[0] == '1' ) ? 1 : 0;
UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}};
@ -78,6 +76,9 @@ int CmdHIDSim(const char *Cmd) {
unsigned int hi = 0, lo = 0;
int n = 0, i = 0;
uint8_t ctmp = param_getchar(Cmd, 0);
if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_sim();
while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
hi = (hi << 4) | (lo >> 28);
lo = (lo << 4) | (n & 0xf);
@ -93,10 +94,14 @@ int CmdHIDSim(const char *Cmd) {
}
int CmdHIDClone(const char *Cmd) {
unsigned int hi2 = 0, hi = 0, lo = 0;
int n = 0, i = 0;
UsbCommand c;
uint8_t ctmp = param_getchar(Cmd, 0);
if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_clone();
if (strchr(Cmd,'l') != 0) {
while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
hi2 = (hi2 << 4) | (hi >> 28);
@ -128,171 +133,198 @@ int CmdHIDClone(const char *Cmd) {
SendCommand(&c);
return 0;
}
// struct to handle wiegand
typedef struct {
uint8_t FormatLen;
uint8_t SiteCode;
uint8_t FacilityCode;
uint8_t CardNumber;
uint8_t* Wiegand;
size_t Wiegand_n;
} wiegand_t;
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;
// static void addHIDMarker(uint8_t fmtlen, uint8_t *out) {
// odd parity
result = 0;
for (i = 12;i >= 1;i--)
result ^= (*lo >> i) & 1;
*lo |= !result;
// }
//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 getParity34(uint32_t *hi, uint32_t *lo){
// uint32_t result = 0;
// int i;
// // 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 getParity33(uint32_t *hi, uint32_t *lo){
// static void calc33(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
}
static void getParity34(uint32_t *hi, uint32_t *lo){
uint32_t result = 0;
int i;
// }
// 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
// even parity
for (i = 7;i >= 0;i--)
result ^= (*hi >> i) & i;
for (i = 31;i >= 24;i--)
result ^= (*lo >> i) & 1;
// 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);
// }
*hi |= result << 2;
static void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){
// odd parity bit
result = 0;
for (i = 23;i >= 1;i--)
result ^= (*lo >> i) & 1;
// 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; }
// }
*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){
*lo = ((cardno & 0xFFFF) << 1) | ((fc & 0xFF) << 17) | (1 << 26);
*hi = (1 << 5);
}
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);
}
static void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint32_t *hi, uint32_t *lo){
uint32_t cn = (cardno & 0xFFFFFFFF);
switch ( fmtlen ) {
case 26 : {
calc26(fc, cn, hi, lo);
getParity26(hi, lo);
break;
}
case 33 : {
calc33(fc, cn, hi, lo);
getParity33(hi, lo);
break;
}
case 34 : {
calc34(fc, cn, hi, lo);
getParity34(hi, lo);
break;
}
case 35 : {
calc35(fc, cn, hi, lo);
getParity35(hi, lo);
break;
}
case 37 : {
calc37S(fc, cn, hi, lo);
getParity37S(hi, lo);
break;
}
case 38 : {
calc37H(cn, 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;
uint32_t fc, lo = 0, hi = 0;
uint32_t oem = 0, fc = 0;
uint64_t cardnum = 0;
uint32_t blocks[2], wiegand[2];
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();
@ -300,11 +332,26 @@ int CmdHIDWiegand(const char *Cmd) {
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 | FC | CN | Wiegand | HID Formatted");
PrintAndLog("----+-----+-------+-----------+--------------------");
for (uint8_t i = 0; i < sizeof(ftmlen); i++){
calcWiegand( ftmlen[i], fc, cardnum, &hi, &lo);
PrintAndLog("HID %d bit | OEM: %d FC: %d CN: %llu | Wiegand code: %08X%08X", ftmlen[i], oem, fc, cardnum, hi, lo);
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,
fc,
cardnum,
wiegand[0],
wiegand[1],
blocks[0],
blocks[1]
);
}
PrintAndLog("----+-----+-------+-----------+--------------------");
return 0;
}
@ -312,7 +359,10 @@ int CmdHIDBrute(const char *Cmd){
bool error = TRUE;
uint8_t fc = 0, fmtlen = 0;
uint32_t hi = 0, lo = 0;
uint8_t bits[96];
uint8_t *bs = bits;
memset(bs, 0, sizeof(bits));
UsbCommand c = {CMD_HID_SIM_TAG, {0, 0, 0}};
@ -347,10 +397,10 @@ int CmdHIDBrute(const char *Cmd){
return 1;
}
calcWiegand( fmtlen, fc, cn, &hi, &lo);
calcWiegand( fmtlen, fc, cn, bs);
c.arg[0] = hi;
c.arg[1] = lo;
c.arg[0] = bytebits_to_byte(bs,32);
c.arg[1] = bytebits_to_byte(bs+32,32);
clearCommandBuffer();
SendCommand(&c);
@ -363,10 +413,9 @@ int CmdHIDBrute(const char *Cmd){
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
// {"demod", CmdHIDDemod, 1, "Demodulate HID Prox Card II (not optimal)"},
{"fskdemod",CmdHIDDemodFSK, 0, "['1'] Realtime HID FSK demodulator (option '1' for one tag only)"},
{"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 (tag must be in antenna)(option 'l' for 84bit ID)"},
{"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"},
{NULL, NULL, 0, NULL}

View file

@ -11,6 +11,17 @@
#ifndef CMDLFHID_H__
#define CMDLFHID_H__
#include <stdio.h>
#include <string.h>
#include "proxmark3.h"
#include "ui.h"
#include "graph.h"
#include "cmdparser.h"
#include "util.h"
#include "cmdmain.h"
#include "sleep.h"
#include "lfdemod.h"
int CmdLFHID(const char *Cmd);
//int CmdHIDDemod(const char *Cmd);
int CmdHIDDemodFSK(const char *Cmd);
@ -20,5 +31,9 @@ int CmdHIDWiegand(const char *Cmd);
int CmdHIDBrute(const char *Cmd);
int usage_lf_hid_wiegand(void);
int usage_lf_hid_sim(void);
int usage_lf_hid_clone(void);
int usage_lf_hid_brute(void);
void calc26(uint16_t fc, uint32_t cardno, uint8_t *out);
#endif