// Work with mifare cards.\r
//-----------------------------------------------------------------------------\r
\r
-#include <string.h>\r
#include "mifareutil.h"\r
+\r
+#include <string.h>\r
+#include <stdbool.h>\r
+\r
#include "proxmark3.h"\r
#include "apps.h"\r
#include "util.h"\r
#include "parity.h"\r
-\r
#include "iso14443crc.h"\r
#include "iso14443a.h"\r
#include "crapto1/crapto1.h"\r
int MF_DBGLEVEL = MF_DBG_ALL;\r
\r
// crypto1 helpers\r
-void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){\r
+void mf_crypto1_decryptEx(struct Crypto1State *pcs, uint8_t *data_in, int len, uint8_t *data_out){\r
uint8_t bt = 0;\r
int i;\r
\r
if (len != 1) {\r
for (i = 0; i < len; i++)\r
- data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];\r
+ data_out[i] = crypto1_byte(pcs, 0x00, 0) ^ data_in[i];\r
} else {\r
bt = 0;\r
for (i = 0; i < 4; i++)\r
- bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], i)) << i;\r
+ bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data_in[0], i)) << i;\r
\r
- data[0] = bt;\r
+ data_out[0] = bt;\r
}\r
return;\r
}\r
\r
+void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){\r
+ mf_crypto1_decryptEx(pcs, data, len, data);\r
+}\r
+\r
void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par) {\r
uint8_t bt = 0;\r
int i;\r
return 1;\r
}\r
\r
+\r
+#define MFU_MAX_RETRIES 5\r
int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData)\r
{\r
uint16_t len;\r
uint8_t bt[2];\r
uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
- \r
+ uint8_t retries;\r
+ int result = 0;\r
\r
- len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
- if (len == 1) {\r
- if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
- return 1;\r
- }\r
- if (len != 18) {\r
- if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: card timeout. len: %x", len);\r
- return 2;\r
+ for (retries = 0; retries < MFU_MAX_RETRIES; retries++) {\r
+ len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
+ if (len == 1) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
+ result = 1;\r
+ continue;\r
+ }\r
+ if (len != 18) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: card timeout. len: %x", len);\r
+ result = 2;\r
+ continue;\r
+ }\r
+\r
+ memcpy(bt, receivedAnswer + 16, 2);\r
+ AppendCrc14443a(receivedAnswer, 16);\r
+ if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd CRC response error.");\r
+ result = 3;\r
+ continue;\r
+ }\r
+\r
+ // No errors encountered; don't retry\r
+ result = 0;\r
+ break;\r
}\r
- \r
- memcpy(bt, receivedAnswer + 16, 2);\r
- AppendCrc14443a(receivedAnswer, 16);\r
- if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {\r
- if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd CRC response error.");\r
- return 3;\r
+\r
+ if (result != 0) {\r
+ Dbprintf("Cmd Error: too many retries; read failed");\r
+ return result;\r
}\r
- \r
+\r
memcpy(blockData, receivedAnswer, 14);\r
return 0;\r
}\r
\r
}\r
\r
+uint8_t SectorTrailer(uint8_t blockNo)\r
+{\r
+ if (blockNo < 32*4) {\r
+ return (blockNo | 0x03);\r
+ } else {\r
+ return (blockNo | 0x0f);\r
+ }\r
+}\r
+\r
+bool IsSectorTrailer(uint8_t blockNo)\r
+{\r
+ return (blockNo == SectorTrailer(blockNo));\r
+}\r
\r
// work with emulator memory\r
void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {\r
}\r
return 1;\r
}\r
+\r
+//-----------------------------------------------------------------------------\r
+// MIFARE check keys\r
+//\r
+//-----------------------------------------------------------------------------\r
+// one key check\r
+int MifareChkBlockKey(uint8_t *uid, uint32_t *cuid, uint8_t *cascade_levels, uint64_t ui64Key, uint8_t blockNo, uint8_t keyType, uint8_t debugLevel) {\r
+\r
+ struct Crypto1State mpcs = {0, 0};\r
+ struct Crypto1State *pcs;\r
+ pcs = &mpcs;\r
+\r
+ // Iceman: use piwi's faster nonce collecting part in hardnested.\r
+ if (*cascade_levels == 0) { // need a full select cycle to get the uid first\r
+ iso14a_card_select_t card_info;\r
+ if(!iso14443a_select_card(uid, &card_info, cuid, true, 0, true)) {\r
+ if (debugLevel >= 1) Dbprintf("ChkKeys: Can't select card");\r
+ return 1;\r
+ }\r
+ switch (card_info.uidlen) {\r
+ case 4 : *cascade_levels = 1; break;\r
+ case 7 : *cascade_levels = 2; break;\r
+ case 10: *cascade_levels = 3; break;\r
+ default: break;\r
+ }\r
+ } else { // no need for anticollision. We can directly select the card\r
+ if(!iso14443a_select_card(uid, NULL, NULL, false, *cascade_levels, true)) {\r
+ if (debugLevel >= 1) Dbprintf("ChkKeys: Can't select card (UID) lvl=%d", *cascade_levels);\r
+ return 1;\r
+ }\r
+ }\r
+ \r
+ if(mifare_classic_auth(pcs, *cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {\r
+// SpinDelayUs(AUTHENTICATION_TIMEOUT); // it not needs because mifare_classic_auth have timeout from iso14a_set_timeout()\r
+ return 2;\r
+ } else {\r
+/* // let it be here. it like halt command, but maybe it will work in some strange cases\r
+ uint8_t dummy_answer = 0;\r
+ ReaderTransmit(&dummy_answer, 1, NULL);\r
+ int timeout = GetCountSspClk() + AUTHENTICATION_TIMEOUT; \r
+ // wait for the card to become ready again\r
+ while(GetCountSspClk() < timeout) {};\r
+*/\r
+ // it needs after success authentication\r
+ mifare_classic_halt(pcs, *cuid);\r
+ }\r
+ \r
+ return 0;\r
+}\r
+\r
+// multi key check\r
+int MifareChkBlockKeys(uint8_t *keys, uint8_t keyCount, uint8_t blockNo, uint8_t keyType, uint8_t debugLevel) {\r
+ uint8_t uid[10];\r
+ uint32_t cuid = 0;\r
+ uint8_t cascade_levels = 0;\r
+ uint64_t ui64Key = 0;\r
+\r
+ int retryCount = 0;\r
+ for (uint8_t i = 0; i < keyCount; i++) {\r
+\r
+ // Allow button press / usb cmd to interrupt device\r
+ if (BUTTON_PRESS() && !usb_poll_validate_length()) { \r
+ Dbprintf("ChkKeys: Cancel operation. Exit...");\r
+ return -2;\r
+ }\r
+\r
+ ui64Key = bytes_to_num(keys + i * 6, 6);\r
+ int res = MifareChkBlockKey(uid, &cuid, &cascade_levels, ui64Key, blockNo, keyType, debugLevel);\r
+ \r
+ // can't select\r
+ if (res == 1) {\r
+ retryCount++;\r
+ if (retryCount >= 5) {\r
+ Dbprintf("ChkKeys: block=%d key=%d. Can't select. Exit...", blockNo, keyType);\r
+ return -1;\r
+ }\r
+ --i; // try the same key once again\r
+\r
+ SpinDelay(20);\r
+// Dbprintf("ChkKeys: block=%d key=%d. Try the same key once again...", blockNo, keyType);\r
+ continue;\r
+ }\r
+ \r
+ // can't authenticate\r
+ if (res == 2) {\r
+ retryCount = 0;\r
+ continue; // can't auth. wrong key.\r
+ }\r
+\r
+ return i + 1;\r
+ }\r
+ \r
+ return 0;\r
+}\r
+\r
+// multisector multikey check\r
+int MifareMultisectorChk(uint8_t *keys, uint8_t keyCount, uint8_t SectorCount, uint8_t keyType, uint8_t debugLevel, TKeyIndex *keyIndex) {\r
+ int res = 0;\r
+ \r
+// int clk = GetCountSspClk();\r
+\r
+ for(int sc = 0; sc < SectorCount; sc++){\r
+ WDT_HIT();\r
+\r
+ int keyAB = keyType;\r
+ do {\r
+ res = MifareChkBlockKeys(keys, keyCount, FirstBlockOfSector(sc), keyAB & 0x01, debugLevel);\r
+ if (res < 0){\r
+ return res;\r
+ }\r
+ if (res > 0){\r
+ (*keyIndex)[keyAB & 0x01][sc] = res;\r
+ }\r
+ } while(--keyAB > 0);\r
+ }\r
+ \r
+// Dbprintf("%d %d", GetCountSspClk() - clk, (GetCountSspClk() - clk)/(SectorCount*keyCount*(keyType==2?2:1)));\r
+ \r
+ return 0;\r
+}\r
+\r
+\r
projects / proxmark3-svn / blobdiff