void cut_setup (void) { int res; nfc_connstring devices[8]; size_t device_count; nfc_init (&context); cut_assert_not_null (context, cut_message ("Unable to init libnfc (malloc)")); device_count = nfc_list_devices (context, devices, 8); if (device_count <= 0) cut_omit ("No device found"); for (size_t i = 0; i < device_count; i++) { device = nfc_open (context, devices[i]); if (!device) cut_omit ("nfc_open() failed."); tags = freefare_get_tags (device); cut_assert_not_null (tags, cut_message ("freefare_get_tags() failed")); tag = NULL; for (int i=0; tags[i]; i++) { if ((freefare_get_tag_type(tags[i]) == MIFARE_CLASSIC_1K) || (freefare_get_tag_type(tags[i]) == MIFARE_CLASSIC_4K)) { tag = tags[i]; res = mifare_classic_connect (tag); cut_assert_equal_int (0, res, cut_message ("mifare_classic_connect() failed")); return; } } nfc_close (device); device = NULL; freefare_free_tags (tags); tags = NULL; } cut_omit ("No MIFARE Classic tag on NFC device"); }
int main(int argc, char **argv) { int res; nfc_connstring devices[8]; size_t device_count; nfc_context *nfcctx; char *uid = NULL; init_crypto_state(); nfc_init(&nfcctx); device_count = nfc_list_devices(nfcctx,devices,8); if (device_count <= 0) { std::cerr << "No device found" << std::endl; } device = nfc_open(nfcctx, devices[0]); tags = freefare_get_tags(device); if (tags[0] == NULL) { std::cerr << "No tag on device" << std::endl; exit(1); } for (int i = 0; tags[i]; i++) { if (freefare_get_tag_type(tags[i]) == CLASSIC_1K) { tag = tags[i]; res = mifare_classic_connect(tag); if (res != 0) { std::cout << "Error connecting to MiFare Classic" << std::endl; exit(1); } std::cout << "Connected to MiFare Classic" << std::endl; uid = freefare_get_tag_uid(tag); break; } } std::cout << "UID: " << uid << std::endl; MifareClassicKey *keyA = (MifareClassicKey *)get_random_bytes(6); std::cout << "Key A: "; print_hex(*keyA,6); char *b64KeyA = getBase64String((char *)keyA,6); std::cout << b64KeyA << std::endl; std::cout << "Key B: "; MifareClassicKey *keyB = (MifareClassicKey *)get_random_bytes(6); print_hex(*keyB,6); char *b64KeyB = getBase64String((char *)keyB,6); bool addedToServer = addCard(uid,b64KeyA,b64KeyB); if (!addedToServer) { printf("Not added to server\n"); } // Authenticate with default key to make changes MifareClassicBlockNumber lastTrailer = mifare_classic_sector_last_block(15); res = mifare_classic_authenticate(tag,lastTrailer,defaultKey,MFC_KEY_A); if (res != 0) { printf("Could not authenticate with default key.. card already formatted?\n"); return -1; } MifareClassicBlockNumber firstBlock = mifare_classic_sector_first_block(15); res = mifare_classic_init_value(tag,firstBlock,SECTOR_15_BLOCK_0_INIT,firstBlock); if (res != 0) { printf("Could not init value block %d\n",firstBlock); } MifareClassicBlock trailerBlock; mifare_classic_trailer_block(&trailerBlock,*keyA,0x03,0x00,0x00,0x04,0x00, *keyB); print_hex(trailerBlock, sizeof(MifareClassicBlock)); res = mifare_classic_write(tag,lastTrailer,trailerBlock); if (res != 0) { printf("Could not write sector 15 trailer. STOP\n"); return -1; } MifareClassicBlock normalTrailerBlock; mifare_classic_trailer_block(&normalTrailerBlock,*keyA,0x00,0x00,0x00,0x04,0x00,*keyB); printf("Writing normal trailer block "); print_hex(&normalTrailerBlock[0], sizeof(MifareClassicBlock)); MifareClassicSectorNumber sector; for(sector=0; sector<15;sector++) { MifareClassicBlockNumber trailerBlockNumber = mifare_classic_sector_last_block(sector); res = mifare_classic_authenticate(tag,trailerBlockNumber,defaultKey,MFC_KEY_A); if (res != 0) { printf("Could not authenticate with default key.. card already formatted?\n"); return -1; } res = mifare_classic_write(tag,trailerBlockNumber,normalTrailerBlock); if (res != 0) { printf("Could not write trailer block for sector %d\n",sector); return -1; } else { printf("Wrote trailer block for sector %d\n",sector); } } free(keyA); free(keyB); free(b64KeyA); free(b64KeyB); free(uid); freefare_free_tags(tags); nfc_close(device); }
int main(int argc, char *argv[]) { int error = EXIT_SUCCESS; nfc_device *device = NULL; MifareTag *tags = NULL; if (argc > 1) errx (EXIT_FAILURE, "usage: %s", argv[0]); nfc_connstring devices[8]; size_t device_count; nfc_context *context; nfc_init (&context); if (context == NULL) errx(EXIT_FAILURE, "Unable to init libnfc (malloc)"); device_count = nfc_list_devices (context, devices, 8); if (device_count <= 0) errx (EXIT_FAILURE, "No NFC device found."); for (size_t d = 0; d < device_count; d++) { device = nfc_open (context, devices[d]); if (!device) { warnx ("nfc_open() failed."); error = EXIT_FAILURE; continue; } tags = freefare_get_tags (device); if (!tags) { nfc_close (device); errx (EXIT_FAILURE, "Error listing tags."); } for (int i = 0; (!error) && tags[i]; i++) { if (DESFIRE != freefare_get_tag_type (tags[i])) continue; int res; // This is hex-encoded see the https://code.google.com/p/libfreefare/source/browse/libfreefare/freefare.c#189 on how to access the raw data char *tag_uid = freefare_get_tag_uid (tags[i]); res = mifare_desfire_connect (tags[i]); if (res < 0) { warnx ("Can't connect to Mifare DESFire target."); error = EXIT_FAILURE; break; } MifareDESFireKey key = mifare_desfire_des_key_new_with_version (key_data_null); res = mifare_desfire_authenticate (tags[i], 0, key); if (res < 0) errx (EXIT_FAILURE, "Authentication on master application failed"); MadAid mad_aid = { 0x12, 0x34 }; MifareDESFireAID aid = mifare_desfire_aid_new_with_mad_aid (mad_aid, 0x5); res = mifare_desfire_create_application (tags[i], aid, 0xFF, 0x1); if (res < 0) errx (EXIT_FAILURE, "Application creation failed"); res = mifare_desfire_select_application (tags[i], aid); if (res < 0) errx (EXIT_FAILURE, "Application selection failed"); res = mifare_desfire_authenticate (tags[i], 0, key); if (res < 0) errx (EXIT_FAILURE, "Authentication on application failed"); res = mifare_desfire_create_std_data_file (tags[i], 1, MDCM_ENCIPHERED, 0x0000, 20); if (res < 0) errx (EXIT_FAILURE, "File creation failed"); const char *s= "Hello World"; res = mifare_desfire_write_data (tags[i], 1, 0, strlen (s), s); if (res < 0) errx (EXIT_FAILURE, "File write failed"); char buffer[20]; res = mifare_desfire_read_data (tags[i], 1, 0, 0, buffer); if (res < 0) errx (EXIT_FAILURE, "File read failed"); res = mifare_desfire_select_application (tags[i], NULL); if (res < 0) errx (EXIT_FAILURE, "Master application selection failed"); res = mifare_desfire_authenticate (tags[i], 0, key); if (res < 0) errx (EXIT_FAILURE, "Authentication on master application failed"); res = mifare_desfire_format_picc (tags[i]); if (res < 0) errx (EXIT_FAILURE, "PICC format failed"); mifare_desfire_key_free (key); free (tag_uid); free (aid); mifare_desfire_disconnect (tags[i]); } freefare_free_tags (tags); nfc_close (device); } nfc_exit (context); exit (error); } /* main() */
int main (void) { uint8_t issuer_key_data[16]; nfc_connstring nfc_devices[8]; size_t nfc_device_count; nfc_device_count = nfc_list_devices (NULL, nfc_devices, 8); for (size_t n = 0; n < nfc_device_count; n++) { nfc_device *nfc_device = nfc_open (NULL, nfc_devices[n]); MifareTag *tags = freefare_get_tags (nfc_device); for (int i = 0; tags[i]; i++) { MifareTag tag = tags[i]; if (DESFIRE == freefare_get_tag_type (tag)) { printf ("Fond Mifare DESFire with UID: %s\n", freefare_get_tag_uid (tag)); printf ("Issuer private key: "); char buffer[BUFSIZ]; system ("stty -echo"); fgets (buffer, BUFSIZ, stdin); system ("stty echo"); char *p; if ((p = strchr (buffer, '\n'))) *p = '\0'; ucard_derivate_password (buffer, strlen (buffer), 16, issuer_key_data); memset (buffer, '\0', strlen (buffer)); MifareDESFireKey key = mifare_desfire_aes_key_new (issuer_key_data); MifareDESFireAID ucard_info_aid = mifare_desfire_aid_new (UCARD_INFO_AID); int res = mifare_desfire_connect (tag); res = mifare_desfire_select_application (tag, ucard_info_aid); if (res < 0) { freefare_perror (tag, "mifare_desfire_select_application"); goto end; } res = mifare_desfire_authenticate_aes (tag, 1, key); if (res < 0) { freefare_perror (tag, "mifare_desfire_authenticate_aes"); goto end; } char owner_info[BUFSIZ]; res = mifare_desfire_read_data_ex (tag, 10, 0, 0, owner_info, MDCM_ENCIPHERED); if (res < 0) { freefare_perror (tag, "mifare_desfire_read_data"); goto end; } owner_info[res] = '\0'; printf ("Owner: %s\n", owner_info); end: mifare_desfire_disconnect (tag); mifare_desfire_key_free (key); free (ucard_info_aid); } } nfc_close (nfc_device); } exit(EXIT_SUCCESS); }
int NFC_Mifare_Classic_Format(int argc, char *argv[]) //! Formattage d'une carte MIFARE Classic { int ch; int error = EXIT_SUCCESS; nfc_device *device = NULL; MifareTag *tags = NULL; while ((ch = getopt (argc, argv, "fhy")) != -1) { switch (ch) { case 'f': format_options.fast = true; break; case 'y': format_options.interactive = false; break; default: sprintf(message_erreur,"Syntaxe incorrecte !"); return EXIT_FAILURE; } } //! Remaining args, if any, are in argv[optind .. (argc-1)] memcpy(default_keys, default_keys_int, sizeof(default_keys_int)); if ((argc - optind) > 0) { int i, rc; char kbuffer[1024] = {0}; memset ( kbuffer, 0, sizeof kbuffer); FILE *fp = fopen(argv[optind], "rb"); if (fp == NULL) { // errx(EXIT_FAILURE, "Unable to open file"); sprintf(message_erreur,"Unable to open file !"); return EXIT_FAILURE; } for (i = 0; (rc = getc(fp)) != EOF && i < 1024; kbuffer[i++] = rc) { } fclose(fp); i = sizeof(default_keys_int) / 6; int s; for(s = 0; s<16; s++) { int startblock = s * 4; int pos_a = (startblock + 3) * 16; int pos_b = (startblock + 3) * 16 + 10; memcpy((default_keys + i++), kbuffer + pos_a, 6); memcpy((default_keys + i++), kbuffer + pos_b, 6); } } nfc_connstring devices[8]; size_t device_count; nfc_context *context; nfc_init (&context); if (context == NULL) { // errx(EXIT_FAILURE, "Unable to init libnfc (malloc) !"); sprintf(message_erreur,"Unable to init libnfc (malloc) !"); return EXIT_FAILURE; } device_count = nfc_list_devices (context, devices, 8); if (device_count <= 0) { // errx (EXIT_FAILURE, "Error opening NFC reader !"); sprintf(message_erreur,"Error opening NFC reader !"); return EXIT_FAILURE; } size_t d; for (d = 0; d < device_count; d++) { device = nfc_open (context, devices[d]); if (!device) { sprintf(message_erreur,"Error opening NFC reader !"); error = EXIT_FAILURE; continue; } tags = freefare_get_tags (device); if (!tags) { nfc_close (device); // errx (EXIT_FAILURE, "Error listing Mifare Classic tag !"); sprintf(message_erreur,"Error listing Mifare Classic tag !"); return EXIT_FAILURE; } int i; for (i = 0; (!error) && tags[i]; i++) { switch (freefare_get_tag_type (tags[i])) { case CLASSIC_1K: case CLASSIC_4K: break; default: continue; } char *tag_uid = freefare_get_tag_uid (tags[i]); char buffer[BUFSIZ]; #ifdef DEBUG_PRINTF fprintf(stderr,"Found %s with UID %s. ", freefare_get_tag_friendly_name (tags[i]), tag_uid); #endif bool format = true; if (format_options.interactive) { #ifdef DEBUG_PRINTF fprintf(stderr,"Format [yN] "); #endif fgets (buffer, BUFSIZ, stdin); format = ((buffer[0] == 'y') || (buffer[0] == 'Y')); } else { #ifdef DEBUG_PRINTF fprintf(stderr,"\n"); #endif } if (format) { enum mifare_tag_type tt = freefare_get_tag_type (tags[i]); at_block = 0; if (format_options.fast) { printf (START_FORMAT_N, (tt == CLASSIC_1K) ? 1 : 2); if (!try_format_sector (tags[i], 0x00)) break; if (tt == CLASSIC_4K) if (!try_format_sector (tags[i], 0x10)) break; printf (DONE_FORMAT); continue; } switch (tt) { case CLASSIC_1K: mod_block = 4; if (!format_mifare_classic_1k (tags[i])) error = 1; break; case CLASSIC_4K: mod_block = 10; if (!format_mifare_classic_4k (tags[i])) error = 1; break; default: /* Keep compiler quiet */ break; } } free (tag_uid); } freefare_free_tags (tags); nfc_close (device); } nfc_exit (context); return error; }
int main(int argc, const char *argv[]) { nfc_device *pnd; // nfc_target nt; // static mifare_param mp; int i, j; MifareTag *tags = NULL; int error = 0; MifareClassicBlock dablock; // MifareClassicBlock mydata = {0x00,0x00,0x00,0x42, 0xff,0xff,0xff,0xbd, 0x00,0x00,0x00,0x42, 0,0xff,0x00,0xff}; MifareClassicBlock my_trailer_block; MifareClassicKey my_key_A = { 0xff,0xff,0xff,0xff,0xff,0xff }; MifareClassicKey my_key_B = { 0xff,0xff,0xff,0xff,0xff,0xff }; // Allocate only a pointer to nfc_context nfc_context *context; // Initialize libnfc and set the nfc_context nfc_init(&context); if (context == NULL) { printf("Unable to init libnfc (malloc)\n"); exit(EXIT_FAILURE); } // Display libnfc version const char *acLibnfcVersion = nfc_version(); (void)argc; printf("%s uses libnfc %s\n", argv[0], acLibnfcVersion); // Open, using the first available NFC device which can be in order of selection: // - default device specified using environment variable or // - first specified device in libnfc.conf (/etc/nfc) or // - first specified device in device-configuration directory (/etc/nfc/devices.d) or // - first auto-detected (if feature is not disabled in libnfc.conf) device pnd = nfc_open(context, NULL); if (pnd == NULL) { printf("ERROR: %s\n", "Unable to open NFC device."); exit(EXIT_FAILURE); } // Set opened NFC device to initiator mode if (nfc_initiator_init(pnd) < 0) { nfc_perror(pnd, "nfc_initiator_init"); exit(EXIT_FAILURE); } printf("NFC reader: %s opened\n", nfc_device_get_name(pnd)); // Poll for a ISO14443A (MIFARE) tag /* const nfc_modulation nmMifare = { .nmt = NMT_ISO14443A, .nbr = NBR_106, }; if (nfc_initiator_select_passive_target(pnd, nmMifare, NULL, 0, &nt) > 0) { printf("The following (NFC) ISO14443A tag was found:\n"); printf(" ATQA (SENS_RES): "); print_hex(nt.nti.nai.abtAtqa, 2); printf(" UID (NFCID%c): ", (nt.nti.nai.abtUid[0] == 0x08 ? '3' : '1')); print_hex(nt.nti.nai.abtUid, nt.nti.nai.szUidLen); printf(" SAK (SEL_RES): "); print_hex(&nt.nti.nai.btSak, 1); if (nt.nti.nai.szAtsLen) { printf(" ATS (ATR): "); print_hex(nt.nti.nai.abtAts, nt.nti.nai.szAtsLen); } } */ tags = freefare_get_tags(pnd); if (!tags) { printf("no Mifare classic\n"); } else { for (i = 0; (!error) && tags[i]; i++) { if (freefare_get_tag_type(tags[i]) == CLASSIC_1K) printf("%u : Mifare 1k (S50)\n",i); if (freefare_get_tag_type(tags[i]) == CLASSIC_4K) printf("%u : Mifare 4k (S70)\n",i); } if(mifare_classic_connect(tags[0])==0) { printf("connected\n"); if(mifare_classic_authenticate(tags[0], 1,keys[0],MFC_KEY_B) == OPERATION_OK) { printf("Authenticated !\n"); if(mifare_classic_read (tags[0], 1, &dablock) == OPERATION_OK) { printf("Block readed\n"); for(j=0; j<16; j++) { printf("%02X ", dablock[j]); } printf("\n"); } else { printf("Auth error : %s\n", freefare_strerror(tags[0])); } if(mifare_classic_get_data_block_permission (tags[0], 1, MCAB_R, MFC_KEY_A)) printf("i can READ this block with B\n"); if(mifare_classic_get_data_block_permission (tags[0], 1, MCAB_W, MFC_KEY_A)) printf("i can WRITE this block with B\n"); if(mifare_classic_get_data_block_permission (tags[0], 1, MCAB_I, MFC_KEY_A)) printf("i can INC this block with B\n"); if(mifare_classic_get_data_block_permission (tags[0], 1, MCAB_D, MFC_KEY_A)) printf("i can DEC this block with B\n"); printf("---\n"); /* trailer = ((block) / 4) * 4 + 3; */ if(mifare_classic_get_trailer_block_permission (tags[0], 3, MCAB_READ_KEYA, MFC_KEY_A)) printf("i can READ KEY A in trailer\n"); if(mifare_classic_get_trailer_block_permission (tags[0], 3, MCAB_WRITE_KEYA, MFC_KEY_A)) printf("i can WRITE KEY A in trailer\n"); if(mifare_classic_get_trailer_block_permission (tags[0], 3, MCAB_READ_ACCESS_BITS, MFC_KEY_A)) printf("i can READ ACCESS BITS in trailer\n"); if(mifare_classic_get_trailer_block_permission (tags[0], 3, MCAB_WRITE_ACCESS_BITS, MFC_KEY_A)) printf("i can WRITE ACCESS BITS in trailer\n"); if(mifare_classic_get_trailer_block_permission (tags[0], 3, MCAB_READ_KEYB, MFC_KEY_A)) printf("i can READ KEYB in trailer\n"); if(mifare_classic_get_trailer_block_permission (tags[0], 3, MCAB_WRITE_KEYB, MFC_KEY_A)) printf("i can WRITE KEYB in trailer\n"); /* if(mifare_classic_write (tags[0], 1, mydata) == 0) { printf("write ok\n"); } */ if(mifare_classic_init_value (tags[0], 1, 0x42, 00) == 0) { printf("init value bloc ok\n"); } /* compose trailer block */ /* ab0 ab1 ab2 abt gpb */ /* abt = C_100 = 4 = 100 = c3c2c1 != datasheet c1c2c3*/ //mifare_classic_trailer_block (&my_trailer_block, my_key_A, C_000, C_011, C_000, C_100, 0x69, my_key_B); mifare_classic_trailer_block (&my_trailer_block, my_key_A, C_000, C_000, C_000, C_100, 0x69, my_key_B); for(j=0; j<16; j++) { printf("%02X ", my_trailer_block[j]); } printf("\n"); if(mifare_classic_write (tags[0], 3, my_trailer_block) == 0) { printf("trailer write ok\n"); } /* if(mifare_classic_decrement(tags[0], 1, 1) == OPERATION_OK) { printf("decrement ok\n"); } else { printf("Decrement error : %s\n", freefare_strerror(tags[0])); } if(mifare_classic_transfer (tags[0], 1) == OPERATION_OK) { printf("transfer ok\n"); } else { printf("Transfert error : %s\n", freefare_strerror(tags[0])); } if(mifare_classic_read(tags[0], 1, &dablock) == OPERATION_OK) { printf("Block readed\n"); for(j=0; j<16; j++) { printf("%02X ", dablock[j]); } printf("\n"); } else { printf("Read error : %s\n", freefare_strerror(tags[0])); } */ } else { printf("Erreur : %s\n", freefare_strerror(tags[0])); } mifare_classic_disconnect(tags[0]); } } /* for(i=0; i<1; i++) { for(j=0; j<8; j++) { memcpy(mp.mpa.abtKey, &keys[j*6], 6); res = nfc_initiator_mifare_cmd(pnd, MC_AUTH_B, 0, &mp); if(res) { printf("sector %u / key %u : yes\n", i, j); continue; } else { printf("sector %u / key %u : no\n", i, j); } } } */ /* // mifare parameters memcpy(mp.mpa.abtAuthUid,nt.nti.nai.abtUid,4); memcpy(mp.mpa.abtKey, &keys[0*6], 6); // block res = nfc_initiator_mifare_cmd(pnd, MC_AUTH_A, 0, &mp); if(res) { printf("Auth success\n"); } else { printf("Auth failed\n"); } for(i=0; i<4; i++) { res = nfc_initiator_mifare_cmd(pnd, MC_READ, i, &mp); if(res) { print_hex(mp.mpd.abtData,16); } else { printf("Read failed\n"); } } */ // Close NFC device nfc_close(pnd); // Release the context nfc_exit(context); exit(EXIT_SUCCESS); }
int main (int argc, char *argv[]) { int error = EXIT_SUCCESS; nfc_device *device = NULL; MifareTag *tags = NULL; if (argc > 1) errx (EXIT_FAILURE, "usage: %s", argv[0]); nfc_connstring devices[8]; size_t device_count; nfc_context *context; nfc_init (&context); device_count = nfc_list_devices (context, devices, sizeof (devices) / sizeof (*devices)); if (device_count <= 0) errx (EXIT_FAILURE, "No NFC device found"); for (size_t d = 0; d < device_count; d++) { if (!(device = nfc_open (context, devices[d]))) { warnx ("nfc_open() failed."); error = EXIT_FAILURE; continue; } if (!(tags = freefare_get_tags (device))) { nfc_close (device); errx (EXIT_FAILURE, "Error listing tags."); } for (int i = 0; (!error) && tags[i]; i++) { switch (freefare_get_tag_type (tags[i])) { case ULTRALIGHT: case ULTRALIGHT_C: break; default: continue; } char *tag_uid = freefare_get_tag_uid (tags[i]); printf ("Tag with UID %s is a %s\n", tag_uid, freefare_get_tag_friendly_name (tags[i])); if (freefare_get_tag_type (tags[i]) == ULTRALIGHT_C) { MifareTag tag = tags[i]; int res; MifareDESFireKey key; uint8_t key1_3des_data[16] = { 0x49, 0x45, 0x4D, 0x4B, 0x41, 0x45, 0x52, 0x42, 0x21, 0x4E, 0x41, 0x43, 0x55, 0x4F, 0x59, 0x46 }; key = mifare_desfire_3des_key_new (key1_3des_data); if (mifare_ultralight_connect (tag) < 0) errx (EXIT_FAILURE, "Error connecting to tag."); res = mifare_ultralightc_authenticate (tag, key); printf ("Authentication with default key: %s\n", res ? "fail" : "success"); mifare_desfire_key_free (key); mifare_ultralight_disconnect (tag); } free (tag_uid); } freefare_free_tags (tags); nfc_close (device); } nfc_exit (context); exit(error); }
int main(int argc, const char *argv[]) { nfc_device *pnd; //nfc_target nt; MifareTag *tags = NULL; int i,j,k; int nbrsect=0; MifareClassicBlock data; // Allocate only a pointer to nfc_context nfc_context *context; // Initialize libnfc and set the nfc_context nfc_init(&context); if (context == NULL) { printf("Unable to init libnfc\n"); exit(EXIT_FAILURE); } // Open, using the first available NFC device which can be in order of selection: // - default device specified using environment variable or // - first specified device in libnfc.conf (/etc/nfc) or // - first specified device in device-configuration directory (/etc/nfc/devices.d) or // - first auto-detected (if feature is not disabled in libnfc.conf) device pnd = nfc_open(context, NULL); if (pnd == NULL) { printf("ERROR: %s\n", "Unable to open NFC device."); exit(EXIT_FAILURE); } printf("NFC reader: %s opened\n", nfc_device_get_name(pnd)); tags = freefare_get_tags(pnd); if (!tags) { printf("no Mifare classic\n"); } else { for (i = 0; tags[i]; i++) { switch(freefare_get_tag_type(tags[i])) { case CLASSIC_1K: printf("%u : Mifare 1k (S50) : %s\n", i, freefare_get_tag_uid(tags[i])); nbrsect=16; break; case CLASSIC_4K: printf("%u : Mifare 4k (S70) : %s\n", i, freefare_get_tag_uid(tags[i])); nbrsect=40; break; default: printf("%u : other ISO14443A tag : %s\n", i, freefare_get_tag_uid(tags[i])); } } } if (!tags[0]) { printf("no tag found !\n"); nfc_close(pnd); nfc_exit(context); exit(EXIT_FAILURE); } printf ("Found %s\n", freefare_get_tag_friendly_name (tags[0])); /* MifareClassicBlockNumber dablock = 1; if(mifare_classic_connect(tags[0]) == OPERATION_OK) { printf("Connected !\n"); if(mifare_classic_authenticate(tags[0], dablock, keys[0], MFC_KEY_A) == OPERATION_OK) { printf("Authenticated !\n"); if(mifare_classic_get_data_block_permission (tags[0], dablock, MCAB_R|MCAB_W, MFC_KEY_A)) printf("i can READ block %d with key A\n", dablock); if(mifare_classic_get_trailer_block_permission (tags[0], ((dablock)/4)*4+3, MCAB_READ_KEYB, MFC_KEY_B)) printf("i can READ KEY A in trailer\n"); } } */ for(i=0; i<nbrsect; i++) { for(j=0; j < sizeof(keys)/sizeof(keys[0]); j++) { if((mifare_classic_connect(tags[0]) == OPERATION_OK) && (mifare_classic_authenticate( tags[0], mifare_classic_sector_last_block(i), keys[j], MFC_KEY_A) == OPERATION_OK)) { printf("sector %02d auth with A[%d]\n", i, j); for(k=mifare_classic_sector_first_block(i); k<=mifare_classic_sector_last_block(i); k++) { if(mifare_classic_read(tags[0], k, &data) == OPERATION_OK) { print_hex(data,16); } else { printf("read error\n"); } } mifare_classic_disconnect(tags[0]); break; } mifare_classic_disconnect(tags[0]); } printf("\n"); } printf("\n"); freefare_free_tags(tags); // Close NFC device nfc_close(pnd); // Release the context nfc_exit(context); exit(EXIT_SUCCESS); }
RSA* readRSA() { nfc_device *device = NULL; MifareTag *tag = NULL; MifareDESFireAID aid; RSA *rsa = NULL; uint8_t key_data_null[8] = { 0,0,0,0,0,0,0,0}; MifareDESFireKey defaultKey = mifare_desfire_des_key_new_with_version (key_data_null); device = getRfidDevice(); if (!device) return NULL; tag = freefare_get_tags(device); mifare_desfire_connect (tag[0]); aid = mifare_desfire_aid_new(AID_NUMBER); mifare_desfire_select_application (tag[0], aid); if (authApplication(tag[0], defaultKeyNumber) < 0) { fprintf(stderr,"Falscher Key\n"); nfc_close(device); return NULL; } if (!rsa) rsa = RSA_new(); if (!rsa->n) rsa->n = BN_new(); if (!rsa->d) rsa->d = BN_new(); if (!rsa->e) rsa->e = BN_new(); if (readBignum(tag[0],aid,rsa->n,0) < 0) { fprintf(stderr,"readBignum %d failed\n",0); nfc_close(device); return NULL; } if (readBignum(tag[0],aid,rsa->d,5) < 0) { fprintf(stderr,"readBignum %d failed\n",0); nfc_close(device); return NULL; } if (readBignum(tag[0],aid,rsa->e,10) < 0) { fprintf(stderr,"readBignum %d failed\n",0); nfc_close(device); return NULL; } nfc_close(device); return rsa; }
int deleteApplication() { nfc_device *device = NULL; MifareTag *tag = NULL; MifareDESFireAID aid = mifare_desfire_aid_new(AID_NUMBER); uint8_t *files = NULL; size_t file_count = 0; uint8_t key_data_null[8] = { 0,0,0,0,0,0,0,0}; MifareDESFireKey defaultKey = mifare_desfire_des_key_new_with_version (key_data_null); device = getRfidDevice(); if (!device) return NULL; tag = freefare_get_tags(device); mifare_desfire_connect (tag[0]); if (mifare_desfire_select_application (tag[0], aid) < 0) { fprintf(stderr,"select AID failed\n"); nfc_close(device); return -1; } if (mifare_desfire_authenticate(tag[0], defaultKeyNumber, defaultKey) < 0 ) { fprintf(stderr,"auth default key on AID failed\n"); nfc_close(device); return -1; } mifare_desfire_get_file_ids(tag[0], &files, &file_count); size_t i; for (i = 0; i < file_count; i++) { mifare_desfire_delete_file(tag[0],files[i]); } if (mifare_desfire_select_application (tag[0], NULL) < 0) { fprintf(stderr,"select Master Application failed\n"); nfc_close(device); return -1; } if (mifare_desfire_authenticate(tag[0], defaultKeyNumber, defaultKey) < 0 ) { fprintf(stderr,"auth Master Application failed\n"); nfc_close(device); return -1; } if (mifare_desfire_delete_application(tag[0],aid) < 0) { fprintf(stderr,"delete application failed\n"); nfc_close(device); return -1; } printf("Application deleted\n"); nfc_close(device); return 0; }
int writeRSA(RSA *rsa) { nfc_device *device = NULL; MifareTag *tag = NULL; MifareDESFireAID aid; uint8_t key_data_null[8] = { 0,0,0,0,0,0,0,0}; MifareDESFireKey defaultKey = mifare_desfire_des_key_new_with_version (key_data_null); device = getRfidDevice(); if (!device) return -1; tag = freefare_get_tags(device); mifare_desfire_connect (tag[0]); aid = mifare_desfire_aid_new(AID_NUMBER); mifare_desfire_create_application(tag[0],aid,0xED,1); if (mifare_desfire_select_application (tag[0], aid) < 0) { nfc_close(device); return -1; } MifareDESFireKey key = mifare_desfire_3des_key_new(createDesKey(makePinpad(),"des-ede")); if (mifare_desfire_authenticate(tag[0],0 , defaultKey) == 0 ) { if (mifare_desfire_change_key(tag[0], 0, key, defaultKey) < 0) { fprintf(stderr,"Change defaultKey to key failed\n"); nfc_close(device); return -1; } } if (mifare_desfire_authenticate(tag[0],0 , key) < 0 ) { fprintf(stderr,"Falscher Key\n"); nfc_close(device); return -1; } if (writeBignum(tag[0],aid,rsa->n,0) < 0) { fprintf(stderr,"writeBignum %d failed\n",0); nfc_close(device); return -1; } if (writeBignum(tag[0],aid,rsa->d,5) < 0) { fprintf(stderr,"writeBignum %d failed\n",5); nfc_close(device); return -1; } if (writeBignum(tag[0],aid,rsa->e,10) < 0) { fprintf(stderr,"writeBignum %d failed\n",10); nfc_close(device); return -1; } printf("Key Geschrieben\n"); fflush(stdout); nfc_close(device); return 0; }
int resetKey() { nfc_device *device = NULL; MifareTag *tag = NULL; MifareDESFireAID aid; uint8_t key_data_null[8] = { 0,0,0,0,0,0,0,0}; MifareDESFireKey defaultKey = mifare_desfire_des_key_new_with_version (key_data_null); device = getRfidDevice(); if (!device) return NULL; tag = freefare_get_tags(device); mifare_desfire_connect (tag[0]); aid = mifare_desfire_aid_new(AID_NUMBER); if (mifare_desfire_select_application (tag[0], aid) < 0) { nfc_close(device); return -1; } MifareDESFireKey key = mifare_desfire_3des_key_new(createDesKey(makePinpad(),"des-ede")); if (mifare_desfire_authenticate(tag[0], defaultKeyNumber, key) < 0) { fprintf(stderr,"Authentication with key failed\n"); nfc_close(device); return -1; } if (mifare_desfire_change_key(tag[0], 0, defaultKey, key) < 0) { fprintf(stderr,"Key change to defaultKey failed\n"); nfc_close(device); return -1; } if (mifare_desfire_authenticate(tag[0], defaultKeyNumber, defaultKey) < 0 ) { fprintf(stderr,"Authentication with defaultKey failed\n"); nfc_close(device); return -1; } if (mifare_desfire_select_application (tag[0], NULL) < 0) { nfc_close(device); return -1; } if (mifare_desfire_authenticate(tag[0], defaultKeyNumber, defaultKey) < 0) { fprintf(stderr,"Authentication with key failed\n"); if (mifare_desfire_change_key(tag[0], 0, defaultKey, key) < 0) { fprintf(stderr,"Key change to defaultKey in Master application failed\n"); nfc_close(device); return -1; } } printf("Schlüssel Erfolgreich geändert\n"); nfc_close(device); return 0; }
int main(int argc, char *argv[]) { int error = EXIT_SUCCESS; nfc_device *device = NULL; FreefareTag *tags = NULL; if (argc > 1) errx (EXIT_FAILURE, "usage: %s", argv[0]); nfc_connstring devices[8]; size_t device_count; nfc_context *context; nfc_init (&context); if (context == NULL) errx(EXIT_FAILURE, "Unable to init libnfc (malloc)"); device_count = nfc_list_devices (context, devices, 8); if (device_count <= 0) errx (EXIT_FAILURE, "No NFC device found."); for (size_t d = 0; d < device_count; d++) { device = nfc_open (context, devices[d]); if (!device) { warnx ("nfc_open() failed."); error = EXIT_FAILURE; continue; } tags = freefare_get_tags (device); if (!tags) { nfc_close (device); errx (EXIT_FAILURE, "Error listing tags."); } for (int i = 0; (!error) && tags[i]; i++) { if (MIFARE_DESFIRE != freefare_get_tag_type (tags[i])) continue; int res; char *tag_uid = freefare_get_tag_uid (tags[i]); res = mifare_desfire_connect (tags[i]); if (res < 0) { warnx ("Can't connect to Mifare DESFire target."); error = 1; break; }else{ printf("Connected uid: %s\n", tag_uid); } uint8_t key_version; mifare_desfire_get_key_version (tags[i], 0, &key_version); MifareDESFireKey key = malloc(sizeof(MifareDESFireKey)); res = mifare_desfire_auto_authenticate(tags[i], 0, key); if(res < 0){ printf("Error while geting the master key.....\n"); break; } MifareDESFireAID aid = mifare_desfire_aid_new (0x112233); //res = mifare_desfire_create_application (tags[i], aid, 0xFF, 1); size_t count; MifareDESFireAID **aids = malloc(sizeof(MifareDESFireAID*)); res = mifare_desfire_get_application_ids(tags[i], aids, &count); if(res==0){ printf("found %d applicaton/s\n", (int)count); //struct MifareDESFireAID aidArr[count] = *aids; int j; for(j=0; j<count; j++){ // Fails here aid = (*aids)[j]; printf("aid %d: %x\n", j, mifare_desfire_aid_get_aid(aid)); if(mifare_desfire_aid_get_aid(aid) == 0x112233){ if(mifare_desfire_select_application(tags[i], aid) == 0){ printf("app selected...\n"); size_t fileCount = 0; uint8_t **files = malloc(sizeof(uint8_t)); int rra = mifare_desfire_get_file_ids(tags[i], files, &fileCount); printf("%d found %d file ids\n", rra, (int)fileCount); } } } printf("ok\n"); }else{ printf("error res is %d\n", res); } mifare_desfire_key_free (key); free (tag_uid); mifare_desfire_disconnect (tags[i]); } freefare_free_tags (tags); nfc_close (device); } nfc_exit (context); exit (error); } /* main() */
int main(int argc, char *argv[]) { int ch; int error = EXIT_SUCCESS; nfc_device *device = NULL; FreefareTag *tags = NULL; while ((ch = getopt (argc, argv, "hy")) != -1) { switch (ch) { case 'h': usage(argv[0]); exit (EXIT_SUCCESS); break; case 'y': configure_options.interactive = false; break; default: usage(argv[0]); exit (EXIT_FAILURE); } } // Remaining args, if any, are in argv[optind .. (argc-1)] nfc_connstring devices[8]; size_t device_count; nfc_context *context; nfc_init (&context); if (context == NULL) errx(EXIT_FAILURE, "Unable to init libnfc (malloc)"); device_count = nfc_list_devices (context, devices, 8); if (device_count <= 0) errx (EXIT_FAILURE, "No NFC device found."); for (size_t d = 0; (!error) && (d < device_count); d++) { device = nfc_open (context, devices[d]); if (!device) { warnx ("nfc_open() failed."); error = EXIT_FAILURE; continue; } tags = freefare_get_tags (device); if (!tags) { nfc_close (device); errx (EXIT_FAILURE, "Error listing Mifare DESFire tags."); } for (int i = 0; (!error) && tags[i]; i++) { if (MIFARE_DESFIRE != freefare_get_tag_type (tags[i])) continue; char *tag_uid = freefare_get_tag_uid (tags[i]); char buffer[BUFSIZ]; int res; res = mifare_desfire_connect (tags[i]); if (res < 0) { warnx ("Can't connect to Mifare DESFire target."); error = EXIT_FAILURE; break; } // Make sure we've at least an EV1 version struct mifare_desfire_version_info info; res = mifare_desfire_get_version (tags[i], &info); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_get_version"); error = 1; break; } if (info.software.version_major < 1) { warnx ("Found old DESFire, skipping"); continue; } printf ("Found %s with UID %s. ", freefare_get_tag_friendly_name (tags[i]), tag_uid); bool do_it = true; if (configure_options.interactive) { printf ("Change default key? [yN] "); fgets (buffer, BUFSIZ, stdin); do_it = ((buffer[0] == 'y') || (buffer[0] == 'Y')); } else { printf ("\n"); } if (do_it) { MifareDESFireKey default_key = mifare_desfire_des_key_new_with_version (null_key_data); res = mifare_desfire_authenticate (tags[i], 0, default_key); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_authenticate"); error = EXIT_FAILURE; break; } mifare_desfire_key_free (default_key); MifareDESFireKey new_key = mifare_desfire_des_key_new (new_key_data); mifare_desfire_key_set_version (new_key, NEW_KEY_VERSION); res = mifare_desfire_set_default_key (tags[i], new_key); free (new_key); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_set_default_key"); error = EXIT_FAILURE; break; } /* * Perform some tests to ensure the function actually worked * (it's hard to create a unit-test to do so). */ MifareDESFireAID aid = mifare_desfire_aid_new (0x112233); res = mifare_desfire_create_application (tags[i], aid, 0xFF, 1); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_create_application"); error = EXIT_FAILURE; break; } res = mifare_desfire_select_application (tags[i], aid); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_select_application"); error = EXIT_FAILURE; break; } uint8_t version; res = mifare_desfire_get_key_version (tags[i], 0, &version); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_get_key_version"); error = EXIT_FAILURE; break; } if (version != NEW_KEY_VERSION) { fprintf (stderr, "Wrong key version: %02x (expected %02x).\n", version, NEW_KEY_VERSION); error = EXIT_FAILURE; /* continue */ } new_key = mifare_desfire_des_key_new (new_key_data); res = mifare_desfire_authenticate (tags[i], 0, new_key); free (new_key); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_authenticate"); error = EXIT_FAILURE; break; } free (aid); /* Resetdefault settings */ res = mifare_desfire_select_application (tags[i], NULL); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_select_application"); error = EXIT_FAILURE; break; } default_key = mifare_desfire_des_key_new (null_key_data); res = mifare_desfire_authenticate (tags[i], 0, default_key); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_authenticate"); error = EXIT_FAILURE; break; } res = mifare_desfire_set_default_key (tags[i], default_key); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_set_default_key"); error = EXIT_FAILURE; break; } mifare_desfire_key_free (default_key); /* Wipeout the card */ res = mifare_desfire_format_picc (tags[i]); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_format_picc"); error = EXIT_FAILURE; break; } } mifare_desfire_disconnect (tags[i]); free (tag_uid); } freefare_free_tags (tags); nfc_close (device); } nfc_exit (context); exit (error); }
int main(int argc, char *argv[]) { int ch; int error = EXIT_SUCCESS; nfc_device *device = NULL; MifareTag *tags = NULL; while ((ch = getopt (argc, argv, "hyK:")) != -1) { switch (ch) { case 'h': usage(argv[0]); exit (EXIT_SUCCESS); break; case 'y': format_options.interactive = false; break; case 'K': if (strlen(optarg) != 16) { usage(argv[0]); exit (EXIT_FAILURE); } uint64_t n = strtoull(optarg, NULL, 16); int i; for (i=7; i>=0; i--) { key_data_picc[i] = (uint8_t) n; n >>= 8; } break; default: usage(argv[0]); exit (EXIT_FAILURE); } } // Remaining args, if any, are in argv[optind .. (argc-1)] nfc_connstring devices[8]; size_t device_count; nfc_context *context; nfc_init (&context); device_count = nfc_list_devices (context, devices, 8); if (device_count <= 0) errx (EXIT_FAILURE, "No NFC device found."); for (size_t d = 0; (!error) && (d < device_count); d++) { device = nfc_open (context, devices[d]); if (!device) { warnx ("nfc_open() failed."); error = EXIT_FAILURE; continue; } tags = freefare_get_tags (device); if (!tags) { nfc_close (device); errx (EXIT_FAILURE, "Error listing Mifare DESFire tags."); } for (int i = 0; (!error) && tags[i]; i++) { if (DESFIRE != freefare_get_tag_type (tags[i])) continue; char *tag_uid = freefare_get_tag_uid (tags[i]); char buffer[BUFSIZ]; printf ("Found %s with UID %s. ", freefare_get_tag_friendly_name (tags[i]), tag_uid); bool format = true; if (format_options.interactive) { printf ("Format [yN] "); fgets (buffer, BUFSIZ, stdin); format = ((buffer[0] == 'y') || (buffer[0] == 'Y')); } else { printf ("\n"); } if (format) { int res; res = mifare_desfire_connect (tags[i]); if (res < 0) { warnx ("Can't connect to Mifare DESFire target."); error = EXIT_FAILURE; break; } MifareDESFireKey key_picc = mifare_desfire_des_key_new_with_version (key_data_picc); res = mifare_desfire_authenticate (tags[i], 0, key_picc); if (res < 0) { warnx ("Can't authenticate on Mifare DESFire target."); error = EXIT_FAILURE; break; } mifare_desfire_key_free (key_picc); // Send Mifare DESFire ChangeKeySetting to change the PICC master key settings into : // bit7-bit4 equal to 0000b // bit3 equal to 1b, the configuration of the PICC master key MAY be changeable or frozen // bit2 equal to 1b, CreateApplication and DeleteApplication commands are allowed without PICC master key authentication // bit1 equal to 1b, GetApplicationIDs, and GetKeySettings are allowed without PICC master key authentication // bit0 equal to 1b, PICC masterkey MAY be frozen or changeable res = mifare_desfire_change_key_settings (tags[i],0x0F); if (res < 0) errx (EXIT_FAILURE, "ChangeKeySettings failed"); res = mifare_desfire_format_picc (tags[i]); if (res < 0) { warn ("Can't format PICC."); error = EXIT_FAILURE; break; } mifare_desfire_disconnect (tags[i]); } free (tag_uid); } freefare_free_tags (tags); nfc_close (device); } nfc_exit (context); exit (error); } /* main() */
int main(int argc, char *argv[]) { int ch; int error = EXIT_SUCCESS; nfc_device *device = NULL; MifareTag *tags = NULL; while ((ch = getopt (argc, argv, "hyK:")) != -1) { switch (ch) { case 'h': usage(argv[0]); exit (EXIT_SUCCESS); break; case 'y': configure_options.interactive = false; break; case 'K': if (strlen(optarg) != 16) { usage(argv[0]); exit (EXIT_FAILURE); } uint64_t n = strtoull(optarg, NULL, 16); int i; for (i=7; i>=0; i--) { key_data_picc[i] = (uint8_t) n; n >>= 8; } break; default: usage(argv[0]); exit (EXIT_FAILURE); } } // Remaining args, if any, are in argv[optind .. (argc-1)] nfc_connstring devices[8]; size_t device_count; nfc_context *context; nfc_init (&context); if (context == NULL) errx(EXIT_FAILURE, "Unable to init libnfc (malloc)"); device_count = nfc_list_devices (context, devices, 8); if (device_count <= 0) errx (EXIT_FAILURE, "No NFC device found."); for (size_t d = 0; (!error) && (d < device_count); d++) { device = nfc_open (context, devices[d]); if (!device) { warnx ("nfc_open() failed."); error = EXIT_FAILURE; continue; } tags = freefare_get_tags (device); if (!tags) { nfc_close (device); errx (EXIT_FAILURE, "Error listing Mifare DESFire tags."); } for (int i = 0; (!error) && tags[i]; i++) { if (DESFIRE != freefare_get_tag_type (tags[i])) continue; char *tag_uid = freefare_get_tag_uid (tags[i]); char buffer[BUFSIZ]; int res; res = mifare_desfire_connect (tags[i]); if (res < 0) { warnx ("Can't connect to Mifare DESFire target."); error = EXIT_FAILURE; break; } // Make sure we've at least an EV1 version struct mifare_desfire_version_info info; res = mifare_desfire_get_version (tags[i], &info); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_get_version"); error = 1; break; } if (info.software.version_major < 1) { warnx ("Found old DESFire, skipping"); continue; } printf ("Found %s with UID %s. ", freefare_get_tag_friendly_name (tags[i]), tag_uid); bool do_it = true; if (configure_options.interactive) { printf ("Change ATS? [yN] "); fgets (buffer, BUFSIZ, stdin); do_it = ((buffer[0] == 'y') || (buffer[0] == 'Y')); } else { printf ("\n"); } if (do_it) { MifareDESFireKey key_picc = mifare_desfire_des_key_new_with_version (key_data_picc); res = mifare_desfire_authenticate (tags[i], 0, key_picc); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_authenticate"); error = EXIT_FAILURE; break; } mifare_desfire_key_free (key_picc); res = mifare_desfire_set_ats (tags[i], new_ats); if (res < 0) { freefare_perror (tags[i], "mifare_desfire_set_ats"); error = EXIT_FAILURE; break; } } mifare_desfire_disconnect (tags[i]); free (tag_uid); } freefare_free_tags (tags); nfc_close (device); } nfc_exit (context); exit (error); } /* main() */
int main (int argc, char *argv[]) { /* * Collect information */ bool f_flag = false; char *p; char ch; while ((ch = getopt (argc, argv, "f")) != -1) { switch (ch) { case 'f': f_flag = true; break; default: usage (argv[0]); exit (EXIT_FAILURE); break; } } char issuer_address[BUFSIZ]; fprintf (stderr, "Card issuer address: "); fgets (issuer_address, BUFSIZ, stdin); if ((p = strchr (issuer_address, '\n'))) *p = '\0'; char issuer_password[BUFSIZ]; read_password ("Issuer password", issuer_password, BUFSIZ); fprintf (stderr, "\n"); uint8_t issuer_password_data[16]; ucard_derivate_password (issuer_password, strlen (issuer_password), 16, issuer_password_data); memset (issuer_password, '\0', strlen (issuer_password)); MifareDESFireKey card_issuer_key = mifare_desfire_aes_key_new (issuer_password_data); char owner_full_name[BUFSIZ]; fprintf (stderr, "Card owner full user name: "); fgets (owner_full_name, BUFSIZ, stdin); if ((p = strchr (owner_full_name, '\n'))) *p = '\0'; char user_password[BUFSIZ]; read_password ("User password", user_password, BUFSIZ); fprintf (stderr, "\n"); uint8_t user_key_data[16]; ucard_derivate_password (user_password, strlen (user_password), 16, user_key_data); memset (user_password, '\0', strlen (user_password)); MifareDESFireKey user_key = mifare_desfire_aes_key_new_with_version (user_key_data, UCARD_AES_KEY_VERSION); char admin_password[BUFSIZ]; read_password ("Admin password", admin_password, BUFSIZ); fprintf (stderr, "\n"); uint8_t admin_key_data[16]; ucard_derivate_password (admin_password, strlen (admin_password), 16, admin_key_data); memset (admin_password, '\0', strlen (admin_password)); MifareDESFireKey admin_key = mifare_desfire_aes_key_new_with_version (admin_key_data, UCARD_AES_KEY_VERSION); uint8_t null_key_data[16] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; MifareDESFireKey null_des_key = mifare_desfire_des_key_new (null_key_data); MifareDESFireKey null_aes_key = mifare_desfire_aes_key_new (null_key_data); nfc_connstring nfc_devices[8]; size_t nfc_device_count; nfc_device_count = nfc_list_devices (NULL, nfc_devices, 8); for (size_t n = 0; n < nfc_device_count; n++) { nfc_device *nfc_device = nfc_open(NULL, nfc_devices[n]); MifareTag *tags = freefare_get_tags (nfc_device); for (int i = 0; tags[i]; i++) { MifareTag tag = tags[i]; if (DESFIRE == freefare_get_tag_type (tag)) { /* Actually setup the card */ printf ("Fond Mifare DESFire with UID: %s\n", freefare_get_tag_uid (tag)); /* * Master Application * * Key 0: Card owner 'user' private key */ MifareDESFireAID ucard_info_aid = mifare_desfire_aid_new (UCARD_INFO_AID); int res = mifare_desfire_connect (tag); if (f_flag) { if (0 == res) res = mifare_desfire_authenticate_aes (tag, 0, user_key); if (0 == res) res = mifare_desfire_format_picc (tag); } else { if (0 == res) res = mifare_desfire_authenticate (tag, 0, null_des_key); if (0 == res) res = mifare_desfire_change_key (tag, 0, user_key, NULL); if (0 == res) res = mifare_desfire_authenticate_aes (tag, 0, user_key); } if (0 == res) res = mifare_desfire_create_application (tag, ucard_info_aid, 0x0F, 0x83); if (!f_flag) { if (0 == res) res = mifare_desfire_change_key_settings (tag, 0x01); } /* * Card information application * * Key 0: Card owner 'admin' private key * Key 1: Card issuer private key * Key 2: Anonymous access public key * * File 9: Card issuer information * File 10: Card owner information * File 11: Keyring */ if (0 == res) res = mifare_desfire_select_application (tag, ucard_info_aid); if (0 == res) res = mifare_desfire_authenticate_aes (tag, 0, null_aes_key); if (0 == res) res = mifare_desfire_change_key (tag, 0, admin_key, NULL); if (0 == res) res = mifare_desfire_authenticate_aes (tag, 0, admin_key); if (0 == res) res = mifare_desfire_change_key (tag, 1, card_issuer_key, NULL); if (0 == res) res = mifare_desfire_create_std_data_file (tag, 9, MDCM_ENCIPHERED, 0x0000, strlen (issuer_address)); if (0 == res) res = mifare_desfire_write_data (tag, 9, 0, strlen (issuer_address), issuer_address); if (strlen (issuer_address) == (size_t) res) res = mifare_desfire_change_file_settings (tag, 9, MDCM_ENCIPHERED, 0x2F11); if (0 == res) res = mifare_desfire_create_std_data_file (tag, 10, MDCM_ENCIPHERED, 0x0000, strlen (owner_full_name)); if (0 == res) res = mifare_desfire_write_data (tag, 10, 0, strlen (owner_full_name), owner_full_name); if (strlen (owner_full_name) == (size_t) res) res = mifare_desfire_change_file_settings (tag, 10, MDCM_ENCIPHERED, 0x0F11); if (0 == res) res = mifare_desfire_create_linear_record_file (tag, 11, MDCM_ENCIPHERED, 0xF20F, 3 + 16, 24); if (0 == res) res = mifare_desfire_change_key_settings (tag, 0x01); if (res < 0) { fprintf (stderr, "Oops, something went wrong! (%s)\n", freefare_strerror (tag)); } mifare_desfire_disconnect (tag); free (ucard_info_aid); } } nfc_close (nfc_device); } mifare_desfire_key_free (admin_key); mifare_desfire_key_free (user_key); mifare_desfire_key_free (card_issuer_key); mifare_desfire_key_free (null_aes_key); mifare_desfire_key_free (null_des_key); exit(EXIT_SUCCESS); }
int main (int argc, char *argv[]) { int error = EXIT_SUCCESS; nfc_device *device = NULL; FreefareTag *tags = NULL; int ch; char *ndef_file = NULL; while ((ch = getopt (argc, argv, "o:")) != -1) { switch (ch) { case 'o': ndef_file = optarg; break; case '?': usage (argv[0]); exit (EXIT_FAILURE); } } nfc_connstring devices[8]; size_t device_count; nfc_context *context; nfc_init (&context); if (context == NULL) errx (EXIT_FAILURE, "Unable to init libnfc (malloc)"); device_count = nfc_list_devices (context, devices, 8); if (device_count <= 0) errx (EXIT_FAILURE, "No NFC device found."); for (size_t d = 0; d < device_count; d++) { device = nfc_open (context, devices[d]); if (!device) { warnx ("nfc_open() failed."); error = EXIT_FAILURE; continue; } tags = freefare_get_tags (device); if (!tags) { nfc_close (device); errx (EXIT_FAILURE, "Error listing FeliCa tag."); } for (int i = 0; (!error) && tags[i]; i++) { int block = 1; uint8_t ndef_message[NDEF_BUFFER_SIZE]; int ndef_space_left = NDEF_BUFFER_SIZE; uint8_t *p = ndef_message; ssize_t s; // FIXME Instead of reading as much as we can, we should read until end of NDEF record (if any is found). while ((ndef_space_left >= 16) && (s = felica_read (tags[i], FELICA_SC_RO, block++, p, 16)) > 0) { p += s; ndef_space_left -= s; } size_t ndef_message_length = 0; if ((ndef_message[0] & 0x80) == 0x80) { uint8_t *ndef_record; do { ndef_record = ndef_message + ndef_message_length; size_t ndef_record_length = 1 + 1 + ndef_record[1]; size_t payload_length; size_t payload_length_length; if (ndef_record[0] & 0x10) { /* Short record */ payload_length = ndef_record[2]; payload_length_length = 1; } else { payload_length = be32toh ((uint32_t) ndef_record + 2); payload_length_length = 4; } ndef_record_length += payload_length_length; ndef_record_length += payload_length; if (ndef_record[0] & 0x08) { ndef_record_length += 2; } ndef_message_length += ndef_record_length; if (ndef_message_length > NDEF_BUFFER_SIZE) errx (EXIT_FAILURE, "NDEF message truncated"); } while ((ndef_record[0] & 0x40) != 0x40); } if (ndef_message_length == 0) errx (EXIT_FAILURE, "No NDEF message found"); FILE *f; if (ndef_file) f = fopen (ndef_file, "w"); else f = stdout; if (fwrite (ndef_message, ndef_message_length, 1, f) != 1) err (EXIT_FAILURE, "Can't write NDEF message"); fclose (f); } freefare_free_tags (tags); nfc_close (device); } exit(EXIT_SUCCESS); }
int main(int argc, char *argv[]) { MYSQL *conn; MYSQL_RES *result; MYSQL_ROW row; int retval; conn = mysql_init(NULL); retval = mysql_real_connect(conn, def_host_name, def_user_name, def_password, def_db_name, def_port_num, def_socket_name, def_client_flag); if(!retval) { printf("Error connecting to database: %s\n", mysql_error(conn)); return -1; } printf("Connection successful\n"); int error = 0; nfc_device_t *device = NULL; MifareTag *tags = NULL; Mad mad; MifareClassicKey transport_key = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; char ndef_input[15] = {'\0'}; char ID[9] = {'\0'}; double balance = 0; printf("\nID: "); scanf("%s", ID); while (getchar() != '\n') continue; printf("\nBalance: "); scanf("%lf", &balance); while (getchar() != '\n') continue; ID[0] = toupper(ID[0]); ID[1] = toupper(ID[1]); char balance_char[6] = {'\0'}; snprintf(balance_char, 6, "%.2f", balance); //ensure balance always with 4 digit, 4.00 => 04.00 char final_balance[6] = {'\0'}; if(strlen(balance_char) != 5) { strcat(final_balance, "0"); strcat(final_balance, balance_char); } else { strcpy(final_balance, balance_char); } strcat(ndef_input, ID); strcat(ndef_input, final_balance); int i = 0; if (ndef_input == NULL) { printf("Write default message.\n"); for(i=0; i < sizeof(ndef_default_msg); i++) { ndef_msg[i] = (uint8_t)ndef_default_msg[i]; } ndef_msg_len = sizeof(ndef_default_msg); } else { for(i=0; i < strlen(ndef_input); i++) { ndef_msg[i] = (uint8_t)ndef_input[i]; } ndef_msg_len = strlen(ndef_input); } printf ("NDEF message is %zu bytes long.\n", ndef_msg_len); struct mifare_classic_key_and_type *card_write_keys; if (!(card_write_keys = malloc (40 * sizeof (*card_write_keys)))) { err (EXIT_FAILURE, "malloc"); } nfc_device_desc_t devices[8]; size_t device_count; nfc_list_devices (devices, 8, &device_count); if (!device_count) errx (EXIT_FAILURE, "No NFC device found."); for (size_t d = 0; d < device_count; d++) { device = nfc_connect (&(devices[d])); if (!device) { warnx ("nfc_connect() failed."); error = EXIT_FAILURE; continue; } tags = freefare_get_tags (device); if (!tags) { nfc_disconnect (device); errx (EXIT_FAILURE, "Error listing MIFARE classic tag."); } for (int i = 0; (!error) && tags[i]; i++) { switch (freefare_get_tag_type (tags[i])) { case CLASSIC_1K: case CLASSIC_4K: break; default: continue; } char *tag_uid = freefare_get_tag_uid (tags[i]); char buffer[BUFSIZ]; printf ("Found %s with UID %s.\n", freefare_get_tag_friendly_name (tags[i]), tag_uid); bool write_ndef = true; for (int n = 0; n < 40; n++) { memcpy(card_write_keys[n].key, transport_key, sizeof (transport_key)); card_write_keys[n].type = MFC_KEY_A; } if (write_ndef) { switch (freefare_get_tag_type (tags[i])) { case CLASSIC_4K: if (!search_sector_key (tags[i], 0x10, &(card_write_keys[0x10].key), &(card_write_keys[0x10].type))) { error = 1; goto error; } /* fallthrough */ case CLASSIC_1K: if (!search_sector_key (tags[i], 0x00, &(card_write_keys[0x00].key), &(card_write_keys[0x00].type))) { error = 1; goto error; } break; default: /* Keep compiler quiet */ break; } if (!error) { /* Ensure the auth key is always a B one. If not, change it! */ switch (freefare_get_tag_type (tags[i])) { case CLASSIC_4K: if (card_write_keys[0x10].type != MFC_KEY_B) { if( 0 != fix_mad_trailer_block (device, tags[i], 0x10, card_write_keys[0x10].key, card_write_keys[0x10].type)) { error = 1; goto error; } memcpy (&(card_write_keys[0x10].key), &default_keyb, sizeof (MifareClassicKey)); card_write_keys[0x10].type = MFC_KEY_B; } /* fallthrough */ case CLASSIC_1K: if (card_write_keys[0x00].type != MFC_KEY_B) { if( 0 != fix_mad_trailer_block (device, tags[i], 0x00, card_write_keys[0x00].key, card_write_keys[0x00].type)) { error = 1; goto error; } memcpy (&(card_write_keys[0x00].key), &default_keyb, sizeof (MifareClassicKey)); card_write_keys[0x00].type = MFC_KEY_B; } break; default: /* Keep compiler quiet */ break; } } size_t encoded_size; uint8_t *tlv_data = tlv_encode (3, ndef_msg, ndef_msg_len, &encoded_size); /* * At his point, we should have collected all information needed to * succeed. */ // If the card already has a MAD, load it. if ((mad = mad_read (tags[i]))) { // If our application already exists, erase it. MifareClassicSectorNumber *sectors, *p; sectors = p = mifare_application_find (mad, mad_nfcforum_aid); if (sectors) { while (*p) { if (mifare_classic_authenticate (tags[i], mifare_classic_sector_last_block(*p), default_keyb, MFC_KEY_B) < 0) { nfc_perror (device, "mifare_classic_authenticate"); error = 1; goto error; } if (mifare_classic_format_sector (tags[i], *p) < 0) { nfc_perror (device, "mifare_classic_format_sector"); error = 1; goto error; } p++; } } free (sectors); mifare_application_free (mad, mad_nfcforum_aid); } else { // Create a MAD and mark unaccessible sectors in the card if (!(mad = mad_new ((freefare_get_tag_type (tags[i]) == CLASSIC_4K) ? 2 : 1))) { perror ("mad_new"); error = 1; goto error; } MifareClassicSectorNumber max_s; switch (freefare_get_tag_type (tags[i])) { case CLASSIC_1K: max_s = 15; break; case CLASSIC_4K: max_s = 39; break; default: /* Keep compiler quiet */ break; } // Mark unusable sectors as so for (size_t s = max_s; s; s--) { if (s == 0x10) continue; if (!search_sector_key (tags[i], s, &(card_write_keys[s].key), &(card_write_keys[s].type))) { mad_set_aid (mad, s, mad_defect_aid); } else if ((memcmp (card_write_keys[s].key, transport_key, sizeof (transport_key)) != 0) && (card_write_keys[s].type != MFC_KEY_A)) { // Revert to transport configuration if (mifare_classic_format_sector (tags[i], s) < 0) { nfc_perror (device, "mifare_classic_format_sector"); error = 1; goto error; } } } } MifareClassicSectorNumber *sectors = mifare_application_alloc (mad, mad_nfcforum_aid, encoded_size); if (!sectors) { nfc_perror (device, "mifare_application_alloc"); error = EXIT_FAILURE; goto error; } if (mad_write (tags[i], mad, card_write_keys[0x00].key, card_write_keys[0x10].key) < 0) { nfc_perror (device, "mad_write"); error = EXIT_FAILURE; goto error; } int s = 0; while (sectors[s]) { MifareClassicBlockNumber block = mifare_classic_sector_last_block (sectors[s]); MifareClassicBlock block_data; mifare_classic_trailer_block (&block_data, mifare_classic_nfcforum_public_key_a, 0x0, 0x0, 0x0, 0x6, 0x40, default_keyb); if (mifare_classic_authenticate (tags[i], block, card_write_keys[sectors[s]].key, card_write_keys[sectors[s]].type) < 0) { nfc_perror (device, "mifare_classic_authenticate"); error = EXIT_FAILURE; goto error; } if (mifare_classic_write (tags[i], block, block_data) < 0) { nfc_perror (device, "mifare_classic_write"); error = EXIT_FAILURE; goto error; } s++; } if ((ssize_t) encoded_size != mifare_application_write (tags[i], mad, mad_nfcforum_aid, tlv_data, encoded_size, default_keyb, MCAB_WRITE_KEYB)) { nfc_perror (device, "mifare_application_write"); error = EXIT_FAILURE; goto error; } //create new student record in database char sql_stmnt[57] = {'\0'}; int n = 0; //filter tag_uid ulong uid_length = strlen(tag_uid); char uid_esc[(2 * uid_length)+1]; mysql_real_escape_string(conn, uid_esc, tag_uid, uid_length); //filter ID ulong id_length = strlen(ID); char id_esc[(2 * id_length)+1]; mysql_real_escape_string(conn, id_esc, ID, id_length); n = snprintf(sql_stmnt, 57, "INSERT INTO student VALUES('%s', '%s', %.1f)", uid_esc, id_esc, balance); retval = mysql_real_query(conn, sql_stmnt, n); if(retval) { printf("Inserting data from DB Failed\n"); return -1; } printf("Insert to DB successful\n"); free (sectors); free (tlv_data); free (mad); } error: free (tag_uid); } //should at the line 412, but the compiler keep on complaining //jump into scope of identifier with variably modified type //no idea why that happens, goto is always call inside any {} to outside error: //even at 412, still not outside enough freefare_free_tags (tags); nfc_disconnect (device); } free (card_write_keys); mysql_free_result(result); mysql_close(conn); exit (error); }