]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdhfmf.c
auth 14443-4 (#692)
[proxmark3-svn] / client / cmdhfmf.c
index b50d6013dec48a6a68142ec5b2bd36ae827c7898..028bbf7a3aca5c35ff2b069f6f0b96ebc6a70e0d 100644 (file)
@@ -27,6 +27,9 @@
 #include "mifare.h"\r
 #include "mfkey.h"\r
 #include "hardnested/hardnested_bf_core.h"\r
+#include "cliparser/cliparser.h"\r
+#include "cmdhf14a.h"\r
+#include <polarssl/aes.h>\r
 \r
 #define NESTED_SECTOR_RETRY     10                     // how often we try mfested() until we give up\r
 \r
@@ -726,7 +729,6 @@ int CmdHF14AMfNested(const char *Cmd)
                                                blockNo = i * 4;\r
                                                keyType = j;\r
                                                num_to_bytes(e_sector[i].Key[j], 6, key);\r
-                                               \r
                                                keyFound = true;\r
                                                break;\r
                                        }\r
@@ -737,6 +739,7 @@ int CmdHF14AMfNested(const char *Cmd)
                        // Can't found a key....\r
                        if (!keyFound) {\r
                                PrintAndLog("Can't found any of the known keys.");\r
+                               free(e_sector);\r
                                return 4;\r
                        }\r
                        PrintAndLog("--auto key. block no:%3d, key type:%c key:%s", blockNo, keyType?'B':'A', sprint_hex(key, 6));\r
@@ -1187,7 +1190,10 @@ int CmdHF14AMfChk(const char *Cmd)
 \r
        // initialize storage for found keys\r
        e_sector = calloc(SectorsCnt, sizeof(sector_t));\r
-       if (e_sector == NULL) return 1;\r
+       if (e_sector == NULL) {\r
+               free(keyBlock);\r
+               return 1;\r
+       }\r
        for (uint8_t keyAB = 0; keyAB < 2; keyAB++) {\r
                for (uint16_t sectorNo = 0; sectorNo < SectorsCnt; sectorNo++) {\r
                        e_sector[sectorNo].Key[keyAB] = 0xffffffffffff;\r
@@ -2631,6 +2637,149 @@ int CmdDecryptTraceCmds(const char *Cmd){
        return tryDecryptWord(param_get32ex(Cmd,0,0,16),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16),data,len/2);\r
 }\r
 \r
+int aes_encode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length){\r
+       uint8_t iiv[16] = {0};\r
+       if (iv)\r
+               memcpy(iiv, iv, 16);\r
+       \r
+       aes_context aes;\r
+       aes_init(&aes);\r
+       if (aes_setkey_enc(&aes, key, 128))\r
+               return 1;\r
+       if (aes_crypt_cbc(&aes, AES_ENCRYPT, length, iiv, input, output))\r
+               return 2;\r
+       aes_free(&aes);\r
+\r
+       return 0;\r
+}\r
+\r
+int aes_decode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length){\r
+       uint8_t iiv[16] = {0};\r
+       if (iv)\r
+               memcpy(iiv, iv, 16);\r
+       \r
+       aes_context aes;\r
+       aes_init(&aes);\r
+       if (aes_setkey_dec(&aes, key, 128))\r
+               return 1;\r
+       if (aes_crypt_cbc(&aes, AES_DECRYPT, length, iiv, input, output))\r
+               return 2;\r
+       aes_free(&aes);\r
+\r
+       return 0;\r
+}\r
+\r
+int CmdHF14AMfAuth4(const char *cmd) {\r
+       uint8_t keyn[20] = {0};\r
+       int keynlen = 0;\r
+       uint8_t key[16] = {0};\r
+       int keylen = 0;\r
+       uint8_t data[257] = {0};\r
+       int datalen = 0;\r
+       \r
+       uint8_t Rnd1[17] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00};\r
+       uint8_t Rnd2[17] = {0};\r
+       \r
+       \r
+       CLIParserInit("hf mf auth4", \r
+               "Executes AES authentication command in ISO14443-4", \r
+               "Usage:\n\thf mf auth4 4000 000102030405060708090a0b0c0d0e0f -> executes authentication\n"\r
+                       "\thf mf auth4 9003 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF -> executes authentication\n");\r
+\r
+       void* argtable[] = {\r
+               arg_param_begin,\r
+               arg_str1(NULL,  NULL,     "<Key Num (HEX 2 bytes)>", NULL),\r
+               arg_str1(NULL,  NULL,     "<Key Value (HEX 16 bytes)>", NULL),\r
+               arg_param_end\r
+       };\r
+       CLIExecWithReturn(cmd, argtable, true);\r
+       \r
+       CLIGetStrWithReturn(1, keyn, &keynlen);\r
+       CLIGetStrWithReturn(2, key, &keylen);\r
+       CLIParserFree();\r
+       \r
+       if (keynlen != 2) {\r
+               PrintAndLog("ERROR: <Key Num> must be 2 bytes long instead of: %d", keynlen);\r
+               return 1;\r
+       }\r
+       \r
+       if (keylen != 16) {\r
+               PrintAndLog("ERROR: <Key Value> must be 16 bytes long instead of: %d", keylen);\r
+               return 1;\r
+       }\r
+\r
+       uint8_t cmd1[] = {0x0a, 0x00, 0x70, keyn[1], keyn[0], 0x00};\r
+       int res = ExchangeRAW14a(cmd1, sizeof(cmd1), true, true, data, sizeof(data), &datalen);\r
+       if (res) {\r
+               PrintAndLog("ERROR exchande raw error: %d", res);\r
+               return 2;\r
+       }\r
+       \r
+       PrintAndLog("<phase1: %s", sprint_hex(data, datalen));\r
+               \r
+       if (datalen < 3) {\r
+               PrintAndLog("ERROR: card response length: %d", datalen);\r
+               return 3;\r
+       }\r
+       \r
+       if (data[0] != 0x0a || data[1] != 0x00) {\r
+               PrintAndLog("ERROR: card response. Framing error. :%s", sprint_hex(data, 2));\r
+               return 3;\r
+       }\r
+\r
+       if (data[2] != 0x90) {\r
+               PrintAndLog("ERROR: card response error: %02x", data[2]);\r
+               return 3;\r
+       }\r
+\r
+       if (datalen != 19) {\r
+               PrintAndLog("ERROR: card response must be 16 bytes long instead of: %d", datalen);\r
+               return 3;\r
+       }\r
+       \r
+    aes_decode(NULL, key, &data[3], Rnd2, 16);\r
+       Rnd2[16] = Rnd2[0];\r
+       PrintAndLog("Rnd2: %s", sprint_hex(Rnd2, 16));\r
+\r
+       uint8_t cmd2[35] = {0};\r
+       cmd2[0] = 0x0b;\r
+       cmd2[1] = 0x00;\r
+       cmd2[2] = 0x72;\r
+\r
+       uint8_t raw[32] = {0};\r
+       memmove(raw, Rnd1, 16);\r
+       memmove(&raw[16], &Rnd2[1], 16);\r
+\r
+    aes_encode(NULL, key, raw, &cmd2[3], 32);\r
+       PrintAndLog(">phase2: %s", sprint_hex(cmd2, 35));\r
+       \r
+       res = ExchangeRAW14a(cmd2, sizeof(cmd2), false, false, data, sizeof(data), &datalen);\r
+       if (res) {\r
+               PrintAndLog("ERROR exchande raw error: %d", res);\r
+               DropField();\r
+               return 4;\r
+       }\r
+       \r
+       PrintAndLog("<phase2: %s", sprint_hex(data, datalen));\r
+\r
+    aes_decode(NULL, key, &data[3], raw, 32);\r
+       PrintAndLog("res: %s", sprint_hex(raw, 32));\r
+       \r
+       PrintAndLog("Rnd1`: %s", sprint_hex(&raw[4], 16));\r
+       if (memcmp(&raw[4], &Rnd1[1], 16)) {\r
+               PrintAndLog("\nERROR: Authentication FAILED. rnd not equal");\r
+               PrintAndLog("rnd1 reader: %s", sprint_hex(&Rnd1[1], 16));\r
+               PrintAndLog("rnd1   card: %s", sprint_hex(&raw[4], 16));\r
+               DropField();\r
+               return 5;\r
+       }\r
+\r
+       DropField();\r
+       PrintAndLog("\nAuthentication OK");\r
+       \r
+       return 0;\r
+}\r
+\r
 static command_t CommandTable[] =\r
 {\r
   {"help",             CmdHelp,                 1, "This help"},\r
@@ -2640,6 +2789,7 @@ static command_t CommandTable[] =
   {"dump",             CmdHF14AMfDump,          0, "Dump MIFARE classic tag to binary file"},\r
   {"restore",                 CmdHF14AMfRestore,       0, "Restore MIFARE classic binary file to BLANK tag"},\r
   {"wrbl",             CmdHF14AMfWrBl,          0, "Write MIFARE classic block"},\r
+  {"auth4",            CmdHF14AMfAuth4,         0, "ISO14443-4 AES authentication"},\r
   {"chk",              CmdHF14AMfChk,           0, "Test block keys"},\r
   {"mifare",           CmdHF14AMifare,          0, "Read parity error messages."},\r
   {"hardnested",       CmdHF14AMfNestedHard,    0, "Nested attack for hardened Mifare cards"},\r
@@ -2666,11 +2816,9 @@ static command_t CommandTable[] =
 \r
 int CmdHFMF(const char *Cmd)\r
 {\r
-       // flush\r
-       WaitForResponseTimeout(CMD_ACK,NULL,100);\r
-\r
-  CmdsParse(CommandTable, Cmd);\r
-  return 0;\r
+       (void)WaitForResponseTimeout(CMD_ACK,NULL,100);\r
+       CmdsParse(CommandTable, Cmd);\r
+       return 0;\r
 }\r
 \r
 int CmdHelp(const char *Cmd)\r
Impressum, Datenschutz