#include "util.h"\r
#include "crc.h"\r
\r
-// the block number for the ISO14443-4 PCB\r
-uint8_t pcb_blocknum = 0;\r
-// Deselect card by sending a s-block. the crc is precalced for speed\r
-static uint8_t deselect_cmd[] = {0xc2,0xe0,0xb4};\r
-\r
//-----------------------------------------------------------------------------\r
// Select, Authenticate, Read a MIFARE tag. \r
// read block\r
return;\r
}\r
\r
- cmd_send(CMD_ACK,1,0,0,dataout,16);\r
+ cmd_send(CMD_ACK,1,0,0,dataout,16);\r
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
LEDsoff();\r
}\r
isOK = 0;\r
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
}\r
-\r
+ \r
\r
if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {\r
isOK = 0;\r
Dbprintf("Data exceeds buffer!!");\r
break;\r
}\r
- \r
- len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i);\r
\r
+ len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i);\r
+ \r
if (len) {\r
if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);\r
// if no blocks read - error out\r
if (i==0){\r
OnError(2);\r
- return;\r
+ return;\r
} else {\r
//stop at last successful read block and return what we got\r
break;\r
\r
// UL-C authentication\r
if ( useKey ) {\r
- uint8_t key[16] = {0x00};\r
+ uint8_t key[16] = {0x00}; \r
memcpy(key, datain+4, sizeof(key) );\r
\r
if ( !mifare_ultra_auth(key) ) {\r
OnError(1);\r
- return;\r
+ return; \r
}\r
}\r
\r
// UL-EV1 / NTAG authentication\r
- if (usePwd) {\r
+ if (usePwd) { \r
uint8_t pwd[4] = {0x00};\r
memcpy(pwd, datain+4, 4);\r
uint8_t pack[4] = {0,0,0,0};\r
if (!mifare_ul_ev1_auth(pwd, pack)) {\r
OnError(1);\r
- return;\r
+ return; \r
}\r
}\r
-\r
+ \r
if(mifare_ultra_writeblock(blockNo, blockdata)) {\r
if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
OnError(0);\r
\r
\r
// statistics on nonce distance\r
+ int16_t isOK = 0;\r
+ #define NESTED_MAX_TRIES 12\r
+ uint16_t unsuccessfull_tries = 0;\r
if (calibrate) { // for first call only. Otherwise reuse previous calibration\r
LED_B_ON();\r
WDT_HIT();\r
\r
for (rtr = 0; rtr < 17; rtr++) {\r
\r
+ // Test if the action was cancelled\r
+ if(BUTTON_PRESS()) {\r
+ isOK = -2;\r
+ break;\r
+ }\r
+\r
// prepare next select. No need to power down the card.\r
if(mifare_classic_halt(pcs, cuid)) {\r
if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Halt error");\r
delta_time = auth2_time - auth1_time + 32; // allow some slack for proper timing\r
}\r
if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);\r
+ } else {\r
+ unsuccessfull_tries++;\r
+ if (unsuccessfull_tries > NESTED_MAX_TRIES) { // card isn't vulnerable to nested attack (random numbers are not predictable)\r
+ isOK = -3;\r
+ }\r
}\r
}\r
- \r
- if (rtr <= 1) return;\r
\r
davg = (davg + (rtr - 1)/2) / (rtr - 1);\r
\r
- if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time);\r
+ if (MF_DBGLEVEL >= 3) Dbprintf("rtr=%d isOK=%d min=%d max=%d avg=%d, delta_time=%d", rtr, isOK, dmin, dmax, davg, delta_time);\r
\r
dmin = davg - 2;\r
dmax = davg + 2;\r
LED_C_ON();\r
\r
// get crypted nonces for target sector\r
- for(i=0; i < 2; i++) { // look for exactly two different nonces\r
+ for(i=0; i < 2 && !isOK; i++) { // look for exactly two different nonces\r
\r
target_nt[i] = 0;\r
while(target_nt[i] == 0) { // continue until we have an unambiguous nonce\r
\r
// nested authentication\r
auth2_time = auth1_time + delta_time;\r
- len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);\r
+ len = mifare_sendcmd_short(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);\r
if (len != 4) {\r
if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth2 error len=%d", len);\r
continue;\r
memcpy(buf+16, &target_ks[1], 4);\r
\r
LED_B_ON();\r
- cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));\r
+ cmd_send(CMD_ACK, isOK, 0, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));\r
LED_B_OFF();\r
\r
if (MF_DBGLEVEL >= 3) DbpString("NESTED FINISHED");\r
if (workFlags & 0x01) {\r
if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
- break;\r
+ //break;\r
};\r
\r
if(mifare_classic_halt(NULL, cuid)) {\r
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");\r
- break;\r
+ //break;\r
};\r
};\r
\r
cmd_send(CMD_ACK,isOK,0,0,0,0);\r
}\r
\r
- //\r
+void MifareCollectNonces(uint32_t arg0, uint32_t arg1){\r
+\r
+ BigBuf_free();\r
+\r
+ uint32_t iterations = arg0;\r
+ uint8_t uid[10] = {0x00};\r
+\r
+ uint8_t *response = BigBuf_malloc(MAX_MIFARE_FRAME_SIZE);\r
+ uint8_t *responsePar = BigBuf_malloc(MAX_MIFARE_PARITY_SIZE);\r
+\r
+ uint8_t mf_auth[] = { 0x60,0x00,0xf5,0x7b };\r
+ \r
+ // get memory from BigBuf.\r
+ uint8_t *nonces = BigBuf_malloc(iterations * 4);\r
+\r
+ LED_A_ON();\r
+ LED_B_OFF();\r
+ LED_C_OFF();\r
+\r
+ clear_trace();\r
+ set_tracing(TRUE);\r
+ iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+ \r
+ for (int i = 0; i < iterations; i++) {\r
+ \r
+ WDT_HIT();\r
+\r
+ // Test if the action was cancelled\r
+ if(BUTTON_PRESS()) break;\r
+ \r
+ // if(mifare_classic_halt(pcs, cuid)) {\r
+ // if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");\r
+ //}\r
+\r
+ if(!iso14443a_select_card(uid, NULL, NULL)) {\r
+ if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
+ continue;\r
+ };\r
+\r
+ // Transmit MIFARE_CLASSIC_AUTH.\r
+ ReaderTransmit(mf_auth, sizeof(mf_auth), NULL);\r
+\r
+ // Receive the (4 Byte) "random" nonce\r
+ if (!ReaderReceive(response, responsePar)) {\r
+ if (MF_DBGLEVEL >= 1) Dbprintf("Couldn't receive tag nonce");\r
+ continue;\r
+ } \r
+ \r
+ nonces[i*4] = bytes_to_num(response, 4);\r
+ }\r
+ \r
+ int packLen = iterations * 4;\r
+ int packSize = 0;\r
+ int packNum = 0;\r
+ while (packLen > 0) {\r
+ packSize = MIN(USB_CMD_DATA_SIZE, packLen);\r
+ LED_B_ON();\r
+ cmd_send(CMD_ACK, 77, 0, packSize, nonces - packLen, packSize);\r
+ LED_B_OFF();\r
+\r
+ packLen -= packSize;\r
+ packNum++;\r
+ }\r
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+ LEDsoff();\r
+}\r
+\r
+//\r
// DESFIRE\r
//\r
\r
\r
byte_t dataout[11] = {0x00};\r
uint8_t uid[10] = {0x00};\r
- uint32_t cuid;\r
+ uint32_t cuid = 0x00;\r
\r
clear_trace();\r
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
\r
uint32_t cuid = arg0;\r
uint8_t key[16] = {0x00};\r
- byte_t isOK = 0;\r
byte_t dataout[12] = {0x00};\r
+ byte_t isOK = 0;\r
\r
memcpy(key, datain, 16);\r
\r
isOK = mifare_desfire_des_auth2(cuid, key, dataout);\r
\r
if( isOK) {\r
- if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed"); \r
+ if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed"); \r
OnError(4);\r
return;\r
}\r
cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout));\r
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
LEDsoff();\r
-}\r
-\r
-void OnSuccess(){\r
- pcb_blocknum = 0;\r
- ReaderTransmit(deselect_cmd, 3 , NULL);\r
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
- LEDsoff();\r
-}\r
-\r
-void OnError(uint8_t reason){\r
- pcb_blocknum = 0;\r
- ReaderTransmit(deselect_cmd, 3 , NULL);\r
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
- cmd_send(CMD_ACK,0,reason,0,0,0);\r
- LEDsoff();\r
-}\r
+}
\ No newline at end of file
projects / proxmark3-svn / blobdiff