ADD: @marshmello42 's fixes for low frequency demodulation lengths greater the 512bits.

[proxmark3-svn] / client / cmdlft55xx.c

diff --git a/client/cmdlft55xx.c b/client/cmdlft55xx.c
index c663c0379459d9503f7ed6169ba4152e052aa3c2..b967936b46af49de2f5eb4123f3370f8796f0ca4 100644 (file)
--- a/client/cmdlft55xx.c
+++ b/client/cmdlft55xx.c
@@ -150,10 +150,17 @@ int usage_t55xx_wakup(){
        return 0;\r
 }\r
 int usage_t55xx_bruteforce(){\r
-    PrintAndLog("Usage: lf t55xx bruteforce <start password> <end password>");\r
+    PrintAndLog("Usage: lf t55xx bruteforce <start password> <end password> [i <*.dic>]");\r
     PrintAndLog("       password must be 4 bytes (8 hex symbols)");\r
+       PrintAndLog("This command uses A) bruteforce to scan a number range");\r
+       PrintAndLog("                  B) a dictionary attack");\r
+       PrintAndLog("Options:");\r
+       PrintAndLog("     h                     - this help");\r
+    PrintAndLog("     i <*.dic>        - loads a default keys dictionary file <*.dic>");\r
+    PrintAndLog("");\r
     PrintAndLog("Examples:");\r
     PrintAndLog("       lf t55xx bruteforce aaaaaaaa bbbbbbbb");\r
+       PrintAndLog("       lf t55xx bruteforce i default_pwd.dic");\r
     PrintAndLog("");\r
     return 0;\r
 }\r
@@ -1316,13 +1323,109 @@ int CmdT55xxWipe(const char *Cmd) {
 }\r
 \r
 int CmdT55xxBruteForce(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 stKeyBlock = 20;\r
+       uint8_t *keyBlock = NULL, *p;\r
+       keyBlock = calloc(stKeyBlock, 6);\r
+       if (keyBlock == NULL) return 1;\r
+       \r
     uint32_t start_password = 0x00000000; //start password\r
     uint32_t end_password   = 0xFFFFFFFF; //end   password\r
-\r
     bool found = false;\r
+\r
     char cmdp = param_getchar(Cmd, 0);\r
     if (cmdp == 'h' || cmdp == 'H') return usage_t55xx_bruteforce();\r
 \r
+       if (cmdp == 'i' || cmdp == 'I') {\r
+       \r
+               int len = strlen(Cmd+2);\r
+               if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;\r
+               memcpy(filename, Cmd+2, len);\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(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
+                                       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
+                       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
+                               getchar();\r
+                               printf("\naborted via keyboard!\n");\r
+                               return 0;\r
+                       }\r
+               \r
+                       testpwd = bytes_to_num(keyBlock + 4*c, 4);\r
+\r
+                       PrintAndLog("Testing %08X", testpwd);\r
+                       \r
+                       \r
+                       if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, TRUE, testpwd)) {\r
+                               PrintAndLog("Aquireing data from device failed. Quitting");\r
+                               return 0;\r
+                       }\r
+                       \r
+                       found = tryDetectModulation();\r
+\r
+                       if ( found ) {\r
+                               PrintAndLog("Found valid password: [%08X]", testpwd);\r
+                               return 0;\r
+                       } \r
+               }\r
+               PrintAndLog("Password NOT found.");\r
+               return 0;\r
+       }\r
+       \r
+       // Try to read Block 7, first :)\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
@@ -1334,23 +1437,30 @@ int CmdT55xxBruteForce(const char *Cmd) {
 \r
     while ((!found) && (i <= end_password)){\r
 \r
-               AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, TRUE, i);\r
+               printf(".");\r
+               fflush(stdout);\r
+               if (ukbhit()) {\r
+                       getchar();\r
+                       printf("\naborted via keyboard!\n");\r
+                       return 0;\r
+               }\r
+                       \r
+               if (!AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, TRUE, i)) {\r
+                       PrintAndLog("Aquireing data from device failed. Quitting");\r
+                       return 0;\r
+               }\r
                found = tryDetectModulation();\r
         \r
-               if (found)\r
-                       break;\r
-        \r
-        if ((i % 0x100) == 0) printf("[%08x], ",i);\r
-\r
+               if (found) break;\r
                i++;\r
     }\r
     \r
     PrintAndLog("");\r
        \r
     if (found)\r
-               PrintAndLog("Password found [%08x]", i);\r
+               PrintAndLog("Found valid password: [%08x]", i);\r
     else\r
-               PrintAndLog("Password NOT found. Last tried: [%08x]", i);\r
+               PrintAndLog("Password NOT found. Last tried: [%08x]", --i);\r
     return 0;\r
 }\r
 \r