+int CmdT55xxBruteForce_downlink(const char *Cmd) {\r
+\r
+ // load a default pwd file.\r
+ char buf[9];\r
+ char filename[FILE_PATH_SIZE]={0};\r
+ int keycnt = 0;\r
+ uint8_t downlink_mode = 0;\r
+ int ch;\r
+ uint8_t stKeyBlock = 20;\r
+ uint8_t *keyBlock = NULL, *p = NULL;\r
+ uint32_t start_password = 0x00000000; //start password\r
+ uint32_t end_password = 0xFFFFFFFF; //end password\r
+ bool found = false;\r
+ uint8_t cmdp = 0;\r
+ int cmd_offset = 0;\r
+ int errors = 0;\r
+ int len;\r
+ bool use_file = false;\r
+ bool use_range = false;\r
+ bool try_all_dl_modes = false;\r
+ uint8_t dl_mode = 0;\r
+ \r
+ keyBlock = calloc(stKeyBlock, 6);\r
+ if (keyBlock == NULL) return 1;\r
+\r
+ PrintAndLog("New Downlink Supprt");\r
+\r
+ while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {\r
+ switch(param_getchar(Cmd, cmdp)) {\r
+ case 'h':\r
+ case 'H':\r
+ return usage_t55xx_bruteforce_downlink();\r
+ case 'e':\r
+ case 'E':\r
+ downlink_mode = param_getchar(Cmd, cmdp+1) - '0';\r
+ if (downlink_mode == 4) try_all_dl_modes = true;\r
+ if (downlink_mode > 3) downlink_mode = 0;\r
+ cmdp +=2;\r
+ cmd_offset += 4;\r
+ PrintAndLog ("DL Mode : %d",downlink_mode);\r
+ break;\r
+ case 'i':\r
+ case 'I':\r
+ if (use_range) {\r
+ PrintAndLog ("use Range or File");\r
+ return 0;\r
+ }\r
+ use_file = true;\r
+ len = strlen(Cmd+2);\r
+ if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;\r
+ memcpy(filename, Cmd+cmd_offset+2, len);\r
+ cmdp += 2;\r
+ // PrintAndLog (" File : [%s]",filename);\r
+ break;\r
+ case 'r':\r
+ case 'R':\r
+ if (use_file) {\r
+ PrintAndLog ("use Range or File");\r
+ return 0;\r
+ }\r
+ use_range = true; // = param_get32ex(Cmd, cmdp+1, 0, 16);\r
+ start_password = param_get32ex(Cmd, cmdp+1, 0, 16);\r
+ end_password = param_get32ex(Cmd, cmdp+2, 0, 16);\r
+ cmdp += 3;\r
+ cmd_offset += 20; // 8 + 8 + 1 + 1 + 1\r
+ // PrintAndLog (" Range : [%0X] - [%0X]",start_password,end_password);\r
+ break;\r
+ default:\r
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));\r
+ errors = true;\r
+ break;\r
+ }\r
+ }\r
+\r
+\r
+// if (cmdp == 'i' || cmdp == 'I') {\r
+\r
+ if (use_file)\r
+ {\r
+ FILE * f = fopen( filename , "r");\r
+\r
+ if ( !f ) {\r
+ PrintAndLog("File: %s: not found or locked.", filename);\r
+ free(keyBlock);\r
+ return 1;\r
+ }\r
+\r
+ while( fgets(buf, sizeof(buf), f) ) {\r
+ if (strlen(buf) < 8 || buf[7] == '\n') continue;\r
+\r
+ while (fgetc(f) != '\n' && !feof(f)) ; //goto next line\r
+\r
+ //The line start with # is comment, skip\r
+ if( buf[0]=='#' ) continue;\r
+\r
+ if (!isxdigit((unsigned char)buf[0])) {\r
+ PrintAndLog("File content error. '%s' must include 8 HEX symbols", buf);\r
+ continue;\r
+ }\r
+ \r
+ buf[8] = 0;\r
+\r
+ if ( stKeyBlock - keycnt < 2) {\r
+ p = realloc(keyBlock, 6*(stKeyBlock+=10));\r
+ if (!p) {\r
+ PrintAndLog("Cannot allocate memory for defaultKeys");\r
+ free(keyBlock);\r
+ fclose(f);\r
+ return 2;\r
+ }\r
+ keyBlock = p;\r
+ }\r
+ memset(keyBlock + 4 * keycnt, 0, 4);\r
+ num_to_bytes(strtoll(buf, NULL, 16), 4, keyBlock + 4*keycnt);\r
+ PrintAndLog("chk custom pwd[%2d] %08X", keycnt, bytes_to_num(keyBlock + 4*keycnt, 4));\r
+ keycnt++;\r
+ memset(buf, 0, sizeof(buf));\r
+ }\r
+ fclose(f);\r
+ \r
+ if (keycnt == 0) {\r
+ PrintAndLog("No keys found in file");\r
+ free(keyBlock);\r
+ return 1;\r
+ }\r
+ PrintAndLog("Loaded %d keys", keycnt);\r
+ \r
+ // loop\r
+ uint64_t testpwd = 0x00;\r
+ for (uint16_t c = 0; c < keycnt; ++c ) {\r
+\r
+ if (ukbhit()) {\r
+ ch = getchar();\r
+ (void)ch;\r
+ printf("\naborted via keyboard!\n");\r
+ free(keyBlock);\r
+ return 0;\r
+ }\r
+\r
+ testpwd = bytes_to_num(keyBlock + 4*c, 4);\r
+\r
+ PrintAndLog("Testing %08X", testpwd);\r
+ \r
+ // Try each downlink_mode of asked to \r
+ // donwlink_mode will = 0 if > 3 or set to 0, so loop from 0 - 3\r
+ for (dl_mode = downlink_mode; dl_mode <= 3; dl_mode++)\r
+ {\r
+ if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, true, testpwd,dl_mode)) {\r
+ PrintAndLog("Aquireing data from device failed. Quitting");\r
+ free(keyBlock);\r
+ return 0;\r
+ }\r
+\r
+ found = tryDetectModulation();\r
+\r
+ if ( found ) {\r
+ PrintAndLog("Found valid password: [%08X]", testpwd);\r
+ free(keyBlock);\r
+ // Add downlink mode to reference.\r
+ switch (dl_mode) {\r
+ case 0 : PrintAndLog ("Downlink : e 0 - Default/Fixed Bit Length"); break;\r
+ case 1 : PrintAndLog ("Downlink : e 1 - Long Leading Reference"); break;\r
+ case 2 : PrintAndLog ("Downlink : e 2 - Leading Zero Reference"); break;\r
+ case 3 : PrintAndLog ("Downlink : e 3 - 1 of 4 Coding"); break;\r
+ }\r
+ return 0;\r
+ }\r
+ if (!try_all_dl_modes) // Exit loop\r
+ dl_mode = 4;\r
+ }\r
+ }\r
+ PrintAndLog("Password NOT found.");\r
+ free(keyBlock);\r
+ return 0;\r
+ }\r
+\r
+ if (use_range)\r
+ {\r
+ // incremental pwd range search\r
+ // start_password = param_get32ex(Cmd, 0, 0, 16);\r
+ // end_password = param_get32ex(Cmd, 1, 0, 16);\r
+\r
+ if ( start_password >= end_password ) {\r
+ free(keyBlock);\r
+ return usage_t55xx_bruteforce_downlink();\r
+ }\r
+ PrintAndLog("Search password range [%08X -> %08X]", start_password, end_password);\r
+\r
+ uint32_t i = start_password;\r
+\r
+ while ((!found) && (i <= end_password)) {\r
+\r
+ printf(".");\r
+ fflush(stdout);\r
+ if (ukbhit()) {\r
+ ch = getchar();\r
+ (void)ch;\r
+ printf("\naborted via keyboard!\n");\r
+ free(keyBlock);\r
+ return 0;\r
+ }\r
+\r
+ if (!AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, true, i,downlink_mode)) {\r
+ PrintAndLog("Aquireing data from device failed. Quitting");\r
+ free(keyBlock);\r
+ return 0;\r
+ }\r
+ found = tryDetectModulation();\r
+\r
+ if (found) break;\r
+ i++;\r
+ }\r
+\r
+ PrintAndLog("");\r
+ \r
+ if (found) {\r
+ PrintAndLog("Found valid password: [%08x]", i);\r
+ // Add downlink mode to reference.\r
+ switch (downlink_mode) {\r
+ case 0 : PrintAndLog ("Downlink : e 0 - Default/Fixed Bit Length"); break;\r
+ case 1 : PrintAndLog ("Downlink : e 1 - Long Leading Reference"); break;\r
+ case 2 : PrintAndLog ("Downlink : e 2 - Leading Zero Reference"); break;\r
+ case 3 : PrintAndLog ("Downlink : e 3 - 1 of 4 Coding"); break;\r
+ }\r
+ }\r
+ else\r
+ PrintAndLog("Password NOT found. Last tried: [%08x]", --i);\r
+\r
+ free(keyBlock);\r
+ }\r
+ return 0;\r
+}\r
+\r
+// note length of data returned is different for different chips. \r
+// some return all page 1 (64 bits) and others return just that block (32 bits) \r
+// unfortunately the 64 bits makes this more likely to get a false positive...\r
+bool tryDetectP1(bool getData) {\r
+ uint8_t preamble[] = {1,1,1,0,0,0,0,0,0,0,0,1,0,1,0,1};\r
+ size_t startIdx = 0;\r
+ uint8_t fc1 = 0, fc2 = 0, ans = 0;\r
+ int clk = 0, firstClockEdge = 0;\r
+ bool st = true;\r
+\r
+ if ( getData ) {\r
+ if ( !AquireData(T55x7_PAGE1, 1, false, 0,0) )\r
+ return false;\r
+ }\r
+\r
+ // try fsk clock detect. if successful it cannot be any other type of modulation... (in theory...)\r
+ ans = fskClocks(&fc1, &fc2, (uint8_t *)&clk, false, &firstClockEdge);\r
+ if (ans && ((fc1==10 && fc2==8) || (fc1==8 && fc2==5))) {\r
+ if ( FSKrawDemod("0 0", false) && \r
+ preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && \r
+ (DemodBufferLen == 32 || DemodBufferLen == 64) ) {\r
+ return true;\r
+ }\r
+ if ( FSKrawDemod("0 1", false) && \r
+ preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && \r
+ (DemodBufferLen == 32 || DemodBufferLen == 64) ) {\r
+ return true;\r
+ }\r
+ return false;\r
+ }\r
+\r
+ // try psk clock detect. if successful it cannot be any other type of modulation... (in theory...)\r
+ clk = GetPskClock("", false, false);\r
+ if (clk>0) {\r
+ // allow undo\r
+ // save_restoreGB(1);\r
+ // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)\r
+ //CmdLtrim("160");\r
+ if ( PSKDemod("0 0 6", false) &&\r
+ preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && \r
+ (DemodBufferLen == 32 || DemodBufferLen == 64) ) {\r
+ //save_restoreGB(0);\r
+ return true;\r
+ }\r
+ if ( PSKDemod("0 1 6", false) &&\r
+ preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && \r
+ (DemodBufferLen == 32 || DemodBufferLen == 64) ) {\r
+ //save_restoreGB(0);\r
+ return true;\r
+ }\r
+ // PSK2 - needs a call to psk1TOpsk2.\r
+ if ( PSKDemod("0 0 6", false)) {\r
+ psk1TOpsk2(DemodBuffer, DemodBufferLen);\r
+ if (preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && \r
+ (DemodBufferLen == 32 || DemodBufferLen == 64) ) {\r
+ //save_restoreGB(0);\r
+ return true;\r
+ }\r
+ } // inverse waves does not affect PSK2 demod\r
+ //undo trim samples\r
+ //save_restoreGB(0); \r
+ // no other modulation clocks = 2 or 4 so quit searching\r
+ if (fc1 != 8) return false;\r
+ }\r
+\r
+ // try ask clock detect. it could be another type even if successful.\r
+ clk = GetAskClock("", false, false);\r
+ if (clk>0) {\r
+ if ( ASKDemod_ext("0 0 1", false, false, 1, &st) &&\r
+ preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && \r
+ (DemodBufferLen == 32 || DemodBufferLen == 64) ) {\r
+ return true;\r
+ }\r
+ st = true;\r
+ if ( ASKDemod_ext("0 1 1", false, false, 1, &st) &&\r
+ preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && \r
+ (DemodBufferLen == 32 || DemodBufferLen == 64) ) {\r
+ return true;\r
+ }\r
+ if ( ASKbiphaseDemod("0 0 0 2", false) &&\r
+ preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && \r
+ (DemodBufferLen == 32 || DemodBufferLen == 64) ) {\r
+ return true;\r
+ }\r
+ if ( ASKbiphaseDemod("0 0 1 2", false) &&\r
+ preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && \r
+ (DemodBufferLen == 32 || DemodBufferLen == 64) ) {\r
+ return true;\r
+ }\r
+ }\r
+\r
+ // try NRZ clock detect. it could be another type even if successful.\r
+ clk = GetNrzClock("", false, false); //has the most false positives :(\r
+ if (clk>0) {\r
+ if ( NRZrawDemod("0 0 1", false) &&\r
+ preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && \r
+ (DemodBufferLen == 32 || DemodBufferLen == 64) ) {\r
+ return true;\r
+ }\r
+ if ( NRZrawDemod("0 1 1", false) &&\r
+ preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && \r
+ (DemodBufferLen == 32 || DemodBufferLen == 64) ) {\r
+ return true;\r
+ }\r
+ }\r
+ return false;\r
+}\r
+// does this need to be a callable command?\r
+int CmdT55xxDetectPage1(const char *Cmd){\r
+ bool errors = false;\r
+ bool useGB = false;\r
+ bool usepwd = false;\r
+ uint32_t password = 0;\r
+ uint8_t cmdp = 0;\r
+\r
+ while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {\r
+ switch(param_getchar(Cmd, cmdp)) {\r
+ case 'h':\r
+ case 'H':\r
+ return usage_t55xx_detectP1();\r
+ case 'p':\r
+ case 'P':\r
+ password = param_get32ex(Cmd, cmdp+1, 0, 16);\r
+ usepwd = true;\r
+ cmdp += 2;\r
+ break;\r
+ case '1':\r
+ // use Graphbuffer data\r
+ useGB = true;\r
+ cmdp++;\r
+ break;\r
+ default:\r
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));\r
+ errors = true;\r
+ break;\r
+ }\r
+ }\r
+ if (errors) return usage_t55xx_detectP1();\r
+\r
+ if ( !useGB ) {\r
+ if ( !AquireData(T55x7_PAGE1, 1, usepwd, password,0) )\r
+ return false;\r
+ }\r
+ bool success = tryDetectP1(false);\r
+ if (success) PrintAndLog("T55xx chip found!");\r
+ return success;\r
+}\r
+\r
projects / proxmark3-svn / blobdiff