auth 14443-4 (#692)

* AES authentication

diff --git a/client/cmdhf14a.c b/client/cmdhf14a.c
index 94eb8ff3511ffc59fdc5692ae8d056d26c9ab7a3..a5de2e2a9341724f500533d05e0ba7ab43c02392 100644 (file)
--- a/client/cmdhf14a.c
+++ b/client/cmdhf14a.c
@@ -648,6 +648,95 @@ void DropField() {
        SendCommand(&c);
 }
 
+int ExchangeRAW14a(uint8_t *datain, int datainlen, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen) {
+       uint16_t cmdc = 0;
+       *dataoutlen = 0;
+       
+       if (activateField) {
+               UsbCommand resp;
+
+               // Anticollision + SELECT card
+               UsbCommand ca = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT | ISO14A_CLEAR_TRACE, 0, 0}};
+               SendCommand(&ca);
+               if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
+                       PrintAndLog("14aRAW ERROR: Proxmark connection timeout.");
+                       return 1;
+               }
+
+               // check result
+               if (resp.arg[0] == 0) {
+                       PrintAndLog("14aRAW ERROR: No card in field.");
+                       return 1;
+               }
+
+               if (resp.arg[0] != 1 && resp.arg[0] != 2) {
+                       PrintAndLog("14aRAW ERROR: card not in iso14443-4. res=%d.", resp.arg[0]);
+                       return 1;
+               }
+
+               if (resp.arg[0] == 2) {         // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS, 3: proprietary Anticollision
+                       // get ATS 
+                       UsbCommand cr = {CMD_READER_ISO_14443a, {ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT, 2, 0}}; 
+                       uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
+                       memcpy(cr.d.asBytes, rats, 2);
+                       SendCommand(&cr);
+                       if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
+                               PrintAndLog("14aRAW ERROR: Proxmark connection timeout.");
+                               return 1;
+                       }
+                       
+                       if (resp.arg[0] <= 0) { // ats_len
+                               PrintAndLog("14aRAW ERROR: Can't get ATS.");
+                               return 1;
+                       }
+               }
+       }
+       
+       if (leaveSignalON)
+               cmdc |= ISO14A_NO_DISCONNECT;
+
+       UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_RAW | ISO14A_APPEND_CRC | cmdc, (datainlen & 0xFFFF), 0}}; 
+       memcpy(c.d.asBytes, datain, datainlen);
+       SendCommand(&c);
+       
+    uint8_t *recv;
+    UsbCommand resp;
+
+    if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
+        recv = resp.d.asBytes;
+        int iLen = resp.arg[0];
+               
+               *dataoutlen = iLen - 2;
+               if (*dataoutlen < 0)
+                       *dataoutlen = 0;
+               
+               if (maxdataoutlen && *dataoutlen > maxdataoutlen) {
+                       PrintAndLog("14aRAW ERROR: Buffer too small(%d). Needs %d bytes", *dataoutlen, maxdataoutlen);
+                       return 2;
+               }
+               
+               memcpy(dataout, recv, *dataoutlen);
+               
+        if(!iLen) {
+                       PrintAndLog("14aRAW ERROR: No card response.");
+            return 1;
+               }
+
+               // CRC Check
+               if (iLen == -1) {
+                       PrintAndLog("14aRAW ERROR: ISO 14443A CRC error.");
+                       return 3;
+               }
+
+
+    } else {
+        PrintAndLog("14aRAW ERROR: Reply timeout.");
+               return 4;
+    }
+       
+       return 0;
+}
+
 int ExchangeAPDU14a(uint8_t *datain, int datainlen, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen) {
        uint16_t cmdc = 0;
        

diff --git a/client/cmdhf14a.h b/client/cmdhf14a.h
index 71007f954f7475e6a7d1f679db62bb04ab2135c0..bbfd9b290c7b9b676827644dee9e9c782bff9772 100644 (file)
--- a/client/cmdhf14a.h
+++ b/client/cmdhf14a.h
@@ -25,6 +25,7 @@ int CmdHF14ASnoop(const char *Cmd);
 char* getTagInfo(uint8_t uid);
 
 extern void DropField();
+extern int ExchangeRAW14a(uint8_t *datain, int datainlen, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen);
 extern int ExchangeAPDU14a(uint8_t *datain, int datainlen, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen);
 
 #endif

diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index e2a4ba1e2f09da71decceb0f82ad37f8857655a4..028bbf7a3aca5c35ff2b069f6f0b96ebc6a70e0d 100644 (file)
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -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
@@ -2634,6 +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
@@ -2643,6 +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