]> git.zerfleddert.de Git - proxmark3-svn/commitdiff
add lf securakey 258/head
authormarshmellow42 <marshmellowrf@gmail.com>
Wed, 29 Mar 2017 04:37:16 +0000 (00:37 -0400)
committermarshmellow42 <marshmellowrf@gmail.com>
Wed, 29 Mar 2017 04:37:16 +0000 (00:37 -0400)
still unknown - checksum and how FC relates to printed FC/Code

also removed noralsy extra ST check (i was tired...)

client/Makefile
client/cmdlf.c
client/cmdlfnoralsy.c
client/cmdlfsecurakey.c [new file with mode: 0644]
client/cmdlfsecurakey.h [new file with mode: 0644]

index c12aee697f43cfbdd27599c18c5970cc13a4e883..a6b1942fb9ccf4231015a64ddffdfcf50a7cc92c 100644 (file)
@@ -103,9 +103,10 @@ CMDSRCS =  crapto1/crapto1.c\
                        cmdlfnexwatch.c \
                        cmdlfnoralsy.c \
                        cmdlfparadox.c \
                        cmdlfnexwatch.c \
                        cmdlfnoralsy.c \
                        cmdlfparadox.c \
-                       cmdlfpcf7931.c\
-                       cmdlfpresco.c\
-                       cmdlfpyramid.c\
+                       cmdlfpcf7931.c \
+                       cmdlfpresco.c \
+                       cmdlfpyramid.c \
+                       cmdlfsecurakey.c \
                        cmdlft55xx.c \
                        cmdlfti.c \
                        cmdlfviking.c\
                        cmdlft55xx.c \
                        cmdlfti.c \
                        cmdlfviking.c\
index 8d789a8e0b0de7562c294b5349c02375bac50c0c..005aa0e2a48158f0a48a03e4e67b7b367cd9aade 100644 (file)
@@ -42,6 +42,7 @@
 #include "cmdlfnexwatch.h"//for nexwatch menu
 #include "cmdlfjablotron.h" //for jablotron menu
 #include "cmdlfnoralsy.h"// for noralsy menu
 #include "cmdlfnexwatch.h"//for nexwatch menu
 #include "cmdlfjablotron.h" //for jablotron menu
 #include "cmdlfnoralsy.h"// for noralsy menu
+#include "cmdlfsecurakey.h"//for securakey menu
 
 bool g_lf_threshold_set = false;
 static int CmdHelp(const char *Cmd);
 
 bool g_lf_threshold_set = false;
 static int CmdHelp(const char *Cmd);
@@ -1003,6 +1004,12 @@ int CmdLFfind(const char *Cmd)
                return CheckChipType(cmdp);
        }
 
                return CheckChipType(cmdp);
        }
 
+       ans=CmdSecurakeyDemod("");
+       if (ans>0) {
+               PrintAndLog("\nValid Securakey ID Found!");
+               return CheckChipType(cmdp);
+       }
+
        ans=CmdVikingDemod("");
        if (ans>0) {
                PrintAndLog("\nValid Viking ID Found!");
        ans=CmdVikingDemod("");
        if (ans>0) {
                PrintAndLog("\nValid Viking ID Found!");
@@ -1074,6 +1081,7 @@ static command_t CommandTable[] =
        {"presco",      CmdLFPresco,        1, "{ Presco RFIDs...            }"},
        {"pcf7931",     CmdLFPCF7931,       1, "{ PCF7931 CHIPs...           }"},
        {"pyramid",     CmdLFPyramid,       1, "{ Farpointe/Pyramid RFIDs... }"},
        {"presco",      CmdLFPresco,        1, "{ Presco RFIDs...            }"},
        {"pcf7931",     CmdLFPCF7931,       1, "{ PCF7931 CHIPs...           }"},
        {"pyramid",     CmdLFPyramid,       1, "{ Farpointe/Pyramid RFIDs... }"},
+       {"securakey",   CmdLFSecurakey,     1, "{ Securakey RFIDs...         }"},
        {"t55xx",       CmdLFT55XX,         1, "{ T55xx CHIPs...             }"},
        {"ti",          CmdLFTI,            1, "{ TI CHIPs...                }"},
        {"viking",      CmdLFViking,        1, "{ Viking RFIDs...            }"},
        {"t55xx",       CmdLFT55XX,         1, "{ T55xx CHIPs...             }"},
        {"ti",          CmdLFTI,            1, "{ TI CHIPs...                }"},
        {"viking",      CmdLFViking,        1, "{ Viking RFIDs...            }"},
index e56ebf7f4a7a99e1b05a88455197f8fbff679eee..db450a4491735e0ead609c0c1ea0fcfebc643f38 100644 (file)
@@ -111,17 +111,13 @@ int NoralsyDemod_AM(uint8_t *dest, size_t *size) {
 int CmdNoralsyDemod(const char *Cmd) {
 
        //ASK / Manchester
 int CmdNoralsyDemod(const char *Cmd) {
 
        //ASK / Manchester
-       DemodBufferLen = getFromGraphBuf(DemodBuffer);
-       if (DemodBufferLen < 255) return 0;
-       int foundclk = 0;
-       size_t ststart = 0, stend = 0;
-       bool st = DetectST_ext(DemodBuffer, &DemodBufferLen, &foundclk, &ststart, &stend);
-       if (!st) return 0;
-
+       bool st = false;
        if (!ASKDemod_ext("32 0 0", false, false, 1, &st)) {
                if (g_debugMode) PrintAndLog("DEBUG: Error - Noralsy: ASK/Manchester Demod failed");
                return 0;
        }
        if (!ASKDemod_ext("32 0 0", false, false, 1, &st)) {
                if (g_debugMode) PrintAndLog("DEBUG: Error - Noralsy: ASK/Manchester Demod failed");
                return 0;
        }
+       if (!st) return 0;
+
        size_t size = DemodBufferLen;
        int ans = NoralsyDemod_AM(DemodBuffer, &size);
        if (ans < 0){
        size_t size = DemodBufferLen;
        int ans = NoralsyDemod_AM(DemodBuffer, &size);
        if (ans < 0){
diff --git a/client/cmdlfsecurakey.c b/client/cmdlfsecurakey.c
new file mode 100644 (file)
index 0000000..1d55faf
--- /dev/null
@@ -0,0 +1,143 @@
+//-----------------------------------------------------------------------------
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// Low frequency Securakey tag commands
+// ASK/Manchester, RF/40, 96 bits long
+//-----------------------------------------------------------------------------
+#include "cmdlfsecurakey.h"
+#include <string.h>
+#include <inttypes.h>
+#include <math.h>
+#include "proxmark3.h"
+#include "ui.h"
+#include "util.h"
+#include "graph.h"
+#include "cmdparser.h"
+#include "cmddata.h"
+#include "cmdmain.h"
+#include "cmdlf.h"
+#include "protocols.h"  // for T55xx config register definitions
+#include "lfdemod.h"    // preamble test
+#include "parity.h"     // for wiegand parity test
+
+static int CmdHelp(const char *Cmd);
+
+// by marshmellow
+// find Securakey preamble in already demoded data
+int SecurakeyFind(uint8_t *dest, size_t *size) {
+       if (*size < 96) return -1; //make sure buffer has data
+       size_t startIdx = 0;
+       uint8_t preamble[] = {0,1,1,1,1,1,1,1,1,1,0,0,1};
+       if (!preambleSearch(dest, preamble, sizeof(preamble), size, &startIdx))
+               return -2; //preamble not found
+       if (*size != 96) return -3; //wrong demoded size
+       //return start position
+       return (int)startIdx;
+}
+
+//see ASKDemod for what args are accepted
+int CmdSecurakeyDemod(const char *Cmd) {
+
+       //ASK / Manchester
+       bool st = false;
+       if (!ASKDemod_ext("40 0 0", false, false, 1, &st)) {
+               if (g_debugMode) PrintAndLog("DEBUG: Error - Noralsy: ASK/Manchester Demod failed");
+               return 0;
+       }
+       if (st) return 0;
+       size_t size = DemodBufferLen;
+       int ans = SecurakeyFind(DemodBuffer, &size);
+       if (ans < 0) {
+               if (g_debugMode) {
+                       if (ans == -1)
+                               PrintAndLog("DEBUG: Error - Securakey: too few bits found");
+                       else if (ans == -2)
+                               PrintAndLog("DEBUG: Error - Securakey: preamble not found");
+                       else if (ans == -3)
+                               PrintAndLog("DEBUG: Error - Securakey: Size not correct: %d", size);
+                       else
+                               PrintAndLog("DEBUG: Error - Securakey: ans: %d", ans);
+               }
+               return 0;
+       }
+       setDemodBuf(DemodBuffer, 96, ans);
+       //setGrid_Clock(40);
+
+       //got a good demod
+       uint32_t raw1 = bytebits_to_byte(DemodBuffer   , 32);
+       uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
+       uint32_t raw3 = bytebits_to_byte(DemodBuffer+64, 32);
+
+       // 26 bit format
+       // preamble     ??bitlen   reserved        EPx   xxxxxxxy   yyyyyyyy   yyyyyyyOP  CS?        CS2?
+       // 0111111111 0 01011010 0 00000000 0 00000010 0 00110110 0 00111110 0 01100010 0 00001111 0 01100000 0 00000000 0 0000
+
+       // 32 bit format
+       // preamble     ??bitlen   reserved  EPxxxxxxx   xxxxxxxy   yyyyyyyy   yyyyyyyOP  CS?        CS2?
+       // 0111111111 0 01100000 0 00000000 0 10000100 0 11001010 0 01011011 0 01010110 0 00010110 0 11100000 0 00000000 0 0000
+
+       // x = FC?
+       // y = card #
+       // standard wiegand parities.
+       // unknown checksum 11 bits? at the end
+       uint8_t bits_no_spacer[86];
+       memcpy(bits_no_spacer, DemodBuffer + 10, 86);
+
+       // remove marker bits (0's every 9th digit after preamble) (pType = 3 (always 0s))
+       size = removeParity(bits_no_spacer, 0, 9, 3, 86);
+       if ( size != 86-10 ) {
+               if (g_debugMode) PrintAndLog("DEBUG: Error removeParity: %d", size);
+               return 0;
+       }
+
+       uint8_t bitLen = (uint8_t)bytebits_to_byte(DemodBuffer+2, 6);
+       uint32_t fc=0, lWiegand=0, rWiegand=0;
+       // get FC
+       // get left 1/2 wiegand & right 1/2 wiegand (for parity test and wiegand print)
+       lWiegand = bytebits_to_byte(DemodBuffer + 48 - bitLen, bitLen/2);
+       rWiegand = bytebits_to_byte(DemodBuffer + 48 - bitLen + bitLen/2, bitLen/2);
+       fc = bytebits_to_byte(DemodBuffer+49-bitLen, bitLen-2-16);
+
+       // test bitLen
+       if (bitLen != 26 && bitLen != 32)
+               PrintAndLog("***unknown securakey bitLen - share with forum***");
+
+       uint32_t cardid = bytebits_to_byte(DemodBuffer+8+23, 16);
+       // test parities
+       bool parity = evenparity32(lWiegand) && oddparity32(rWiegand);
+
+       PrintAndLog("Securakey Tag Found--BitLen: %u, Card ID: %u, FC: %X, Raw: %08X%08X%08X", bitLen, cardid, fc, raw1 ,raw2, raw3);
+       if (bitLen <= 32)
+               PrintAndLog("Wiegand: %08X, Parity: %s", (lWiegand<<(bitLen/2)) | rWiegand, parity ? "Passed" : "Failed");
+       PrintAndLog("\nHow the FC translates to printed FC is unknown");
+       PrintAndLog("How the checksum is calculated is unknown");
+       PrintAndLog("Help the community identify this format further\n by sharing your tag on the pm3 forum or with forum members");
+       return 1;
+}
+
+int CmdSecurakeyRead(const char *Cmd) {
+       CmdLFRead("s");
+       getSamples("8000",true);
+       return CmdSecurakeyDemod(Cmd);
+}
+
+static command_t CommandTable[] = {
+       {"help",  CmdHelp,          1, "This help"},
+       {"demod", CmdSecurakeyDemod,1, "Attempt to read and extract tag data from the GraphBuffer"},
+       {"read",  CmdSecurakeyRead, 0, "Attempt to read and extract tag data from the antenna"},
+    {NULL, NULL, 0, NULL}
+};
+
+int CmdLFSecurakey(const char *Cmd) {
+       clearCommandBuffer();
+       CmdsParse(CommandTable, Cmd);
+       return 0;
+}
+
+int CmdHelp(const char *Cmd) {
+       CmdsHelp(CommandTable);
+       return 0;
+}
diff --git a/client/cmdlfsecurakey.h b/client/cmdlfsecurakey.h
new file mode 100644 (file)
index 0000000..f3c0cf8
--- /dev/null
@@ -0,0 +1,19 @@
+//-----------------------------------------------------------------------------
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// Low frequency Securakey tag commands
+//-----------------------------------------------------------------------------
+#ifndef CMDLFSECURAKEY_H__
+#define CMDLFSECURAKEY_H__
+
+extern int CmdLFSecurakey(const char *Cmd);
+extern int CmdSecurakeyClone(const char *Cmd);
+extern int CmdSecurakeySim(const char *Cmd);
+extern int CmdSecurakeyRead(const char *Cmd);
+extern int CmdSecurakeyDemod(const char *Cmd);
+
+#endif
+
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