X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/20f9a2a1d54952ed15066c93490f0e8fb0d43b67..078e2bd238dfddb39c33de775f5e0a68657c4504:/armsrc/mifareutil.c?ds=sidebyside diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c index ede1cbc9..38ca934a 100644 --- a/armsrc/mifareutil.c +++ b/armsrc/mifareutil.c @@ -1,33 +1,100 @@ //----------------------------------------------------------------------------- -// Merlok, May 2011 -// Many authors, that makes it possible +// Merlok, May 2011, 2012 +// Many authors, whom made it possible // // This code is licensed to you under the terms of the GNU GPL, version 2 or, // at your option, any later version. See the LICENSE.txt file for the text of // the license. //----------------------------------------------------------------------------- -// code for work with mifare cards. +// Work with mifare cards. //----------------------------------------------------------------------------- +#include "mifareutil.h" + +#include +#include + #include "proxmark3.h" #include "apps.h" #include "util.h" -#include "string.h" - +#include "parity.h" #include "iso14443crc.h" #include "iso14443a.h" -#include "crapto1.h" -#include "mifareutil.h" +#include "crapto1/crapto1.h" +#include "polarssl/des.h" + +int MF_DBGLEVEL = MF_DBG_ALL; + +// crypto1 helpers +void mf_crypto1_decryptEx(struct Crypto1State *pcs, uint8_t *data_in, int len, uint8_t *data_out){ + uint8_t bt = 0; + int i; + + if (len != 1) { + for (i = 0; i < len; i++) + data_out[i] = crypto1_byte(pcs, 0x00, 0) ^ data_in[i]; + } else { + bt = 0; + for (i = 0; i < 4; i++) + bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data_in[0], i)) << i; + + data_out[0] = bt; + } + return; +} + +void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){ + mf_crypto1_decryptEx(pcs, data, len, data); +} + +void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par) { + uint8_t bt = 0; + int i; + par[0] = 0; + + for (i = 0; i < len; i++) { + bt = data[i]; + data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i]; + if((i&0x0007) == 0) + par[i>>3] = 0; + par[i>>3] |= (((filter(pcs->odd) ^ oddparity8(bt)) & 0x01)<<(7-(i&0x0007))); + } + return; +} + +uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) { + uint8_t bt = 0; + int i; -uint8_t* mifare_get_bigbufptr(void) { - return (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes + for (i = 0; i < 4; i++) + bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, i)) << i; + + return bt; } -int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer) +// send X byte basic commands +int mifare_sendcmd(uint8_t cmd, uint8_t* data, uint8_t data_size, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing) { - uint8_t dcmd[4], ecmd[4]; - uint32_t pos, par, res; + uint8_t dcmd[data_size+3]; + dcmd[0] = cmd; + memcpy(dcmd+1,data,data_size); + AppendCrc14443a(dcmd, data_size+1); + ReaderTransmit(dcmd, sizeof(dcmd), timing); + int len = ReaderReceive(answer, answer_parity); + if(!len) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("%02X Cmd failed. Card timeout.", cmd); + len = ReaderReceive(answer,answer_parity); + //return 0; + } + return len; +} +// send 2 byte commands +int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing) +{ + uint8_t dcmd[4], ecmd[4]; + uint16_t pos, res; + uint8_t par[1]; // 1 Byte parity is enough here dcmd[0] = cmd; dcmd[1] = data; AppendCrc14443a(dcmd, 2); @@ -35,22 +102,24 @@ int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, memcpy(ecmd, dcmd, sizeof(dcmd)); if (crypted) { - par = 0; + par[0] = 0; for (pos = 0; pos < 4; pos++) { ecmd[pos] = crypto1_byte(pcs, 0x00, 0) ^ dcmd[pos]; - par = (par >> 1) | ( ((filter(pcs->odd) ^ oddparity(dcmd[pos])) & 0x01) * 0x08 ); + par[0] |= (((filter(pcs->odd) ^ oddparity8(dcmd[pos])) & 0x01) << (7-pos)); } - ReaderTransmitPar(ecmd, sizeof(ecmd), par); + ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing); } else { - ReaderTransmit(dcmd, sizeof(dcmd)); + ReaderTransmit(dcmd, sizeof(dcmd), timing); } - int len = ReaderReceive(answer); - - if (crypted) { + int len = ReaderReceive(answer, par); + + if (answer_parity) *answer_parity = par[0]; + + if (crypted == CRYPT_ALL) { if (len == 1) { res = 0; for (pos = 0; pos < 4; pos++) @@ -69,75 +138,98 @@ int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, return len; } -int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint64_t isNested) +// mifare classic commands +int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested) +{ + return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL, NULL); +} + +int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested, uint32_t *ntptr, uint32_t *timing) { // variables - int len; + int len; uint32_t pos; uint8_t tmp4[4]; - byte_t par = 0; - byte_t ar[4]; + uint8_t par[1] = {0x00}; + byte_t nr[4]; uint32_t nt, ntpp; // Supplied tag nonce uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }; - uint8_t* receivedAnswer = mifare_get_bigbufptr(); - - // Transmit MIFARE_CLASSIC_AUTH - len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer); -// Dbprintf("rand nonce len: %x", len); - if (len != 4) return 1; + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE]; + + // Transmit MIFARE_CLASSIC_AUTH + len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer, receivedAnswerPar, timing); + if (MF_DBGLEVEL >= 4) Dbprintf("rand tag nonce len: %x", len); + if (len != 4) return 1; - ar[0] = 0x55; - ar[1] = 0x41; - ar[2] = 0x49; - ar[3] = 0x92; + // "random" reader nonce: + nr[0] = 0x55; + nr[1] = 0x41; + nr[2] = 0x49; + nr[3] = 0x92; // Save the tag nonce (nt) nt = bytes_to_num(receivedAnswer, 4); - Dbprintf("uid: %x nt: %x", uid, nt); // ----------------------------- crypto1 create - // Init cipher with key + if (isNested) + crypto1_destroy(pcs); + + // Init cipher with key crypto1_create(pcs, ui64Key); - // Load (plain) uid^nt into the cipher - crypto1_word(pcs, nt ^ uid, 0); + if (isNested == AUTH_NESTED) { + // decrypt nt with help of new key + nt = crypto1_word(pcs, nt ^ uid, 1) ^ nt; + } else { + // Load (plain) uid^nt into the cipher + crypto1_word(pcs, nt ^ uid, 0); + } + + // some statistic + if (!ntptr && (MF_DBGLEVEL >= 3)) + Dbprintf("auth uid: %08x nt: %08x", uid, nt); + + // save Nt + if (ntptr) + *ntptr = nt; - par = 0; - // Generate (encrypted) nr+parity by loading it into the cipher (Nr) - for (pos = 0; pos < 4; pos++) - { - mf_nr_ar[pos] = crypto1_byte(pcs, ar[pos], 0) ^ ar[pos]; - par = (par >> 1) | ( ((filter(pcs->odd) ^ oddparity(ar[pos])) & 0x01) * 0x80 ); - } + // Generate (encrypted) nr+parity by loading it into the cipher (Nr) + par[0] = 0; + for (pos = 0; pos < 4; pos++) + { + mf_nr_ar[pos] = crypto1_byte(pcs, nr[pos], 0) ^ nr[pos]; + par[0] |= (((filter(pcs->odd) ^ oddparity8(nr[pos])) & 0x01) << (7-pos)); + } - // Skip 32 bits in pseudo random generator - nt = prng_successor(nt,32); + // Skip 32 bits in pseudo random generator + nt = prng_successor(nt,32); // ar+parity - for (pos = 4; pos < 8; pos++) - { + for (pos = 4; pos < 8; pos++) + { nt = prng_successor(nt,8); - mf_nr_ar[pos] = crypto1_byte(pcs,0x00,0) ^ (nt & 0xff); - par = (par >> 1)| ( ((filter(pcs->odd) ^ oddparity(nt & 0xff)) & 0x01) * 0x80 ); - } + mf_nr_ar[pos] = crypto1_byte(pcs,0x00,0) ^ (nt & 0xff); + par[0] |= (((filter(pcs->odd) ^ oddparity8(nt)) & 0x01) << (7-pos)); + } - // Transmit reader nonce and reader answer - ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par); - - // Receive 4 bit answer - len = ReaderReceive(receivedAnswer); - if (!len) - { - Dbprintf("Authentication failed. Card timeout."); + // Transmit reader nonce and reader answer + ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par, NULL); + + // Receive 4 byte tag answer + len = ReaderReceive(receivedAnswer, receivedAnswerPar); + if (!len) + { + if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout."); return 2; - } + } - memcpy(tmp4, receivedAnswer, 4); + memcpy(tmp4, receivedAnswer, 4); ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0,0); if (ntpp != bytes_to_num(tmp4, 4)) { - Dbprintf("Authentication failed. Error card response."); + if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Error card response."); return 3; } @@ -147,26 +239,27 @@ int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) { // variables - int len; + int len; uint8_t bt[2]; - uint8_t* receivedAnswer = mifare_get_bigbufptr(); + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE]; - // command MIFARE_CLASSIC_READBLOCK - len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer); + // command MIFARE_CLASSIC_READBLOCK + len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL); if (len == 1) { - Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); return 1; } if (len != 18) { - Dbprintf("Cmd Error: card timeout. len: %x", len); + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: card timeout. len: %x", len); return 2; } memcpy(bt, receivedAnswer + 16, 2); - AppendCrc14443a(receivedAnswer, 16); + AppendCrc14443a(receivedAnswer, 16); if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) { - Dbprintf("Cmd CRC response error."); + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd CRC response error."); return 3; } @@ -174,22 +267,190 @@ int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blo return 0; } +// mifare ultralight commands +int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){ + + uint16_t len; + uint8_t resp[4]; + uint8_t respPar[1]; + uint8_t key[4] = {0x00}; + memcpy(key, keybytes, 4); + + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) + Dbprintf("EV1 Auth : %02x%02x%02x%02x", key[0], key[1], key[2], key[3]); + len = mifare_sendcmd(0x1B, key, sizeof(key), resp, respPar, NULL); + //len = mifare_sendcmd_short_mfuev1auth(NULL, 0, 0x1B, key, resp, respPar, NULL); + if (len != 4) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x %u", resp[0], len); + return 0; + } + + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) + Dbprintf("Auth Resp: %02x%02x%02x%02x", resp[0],resp[1],resp[2],resp[3]); + + memcpy(pack, resp, 4); + return 1; +} + +int mifare_ultra_auth(uint8_t *keybytes){ + + /// 3des2k + + des3_context ctx = { 0x00 }; + uint8_t random_a[8] = {1,1,1,1,1,1,1,1}; + uint8_t random_b[8] = {0x00}; + uint8_t enc_random_b[8] = {0x00}; + uint8_t rnd_ab[16] = {0x00}; + uint8_t IV[8] = {0x00}; + uint8_t key[16] = {0x00}; + memcpy(key, keybytes, 16); + + uint16_t len; + uint8_t resp[19] = {0x00}; + uint8_t respPar[3] = {0,0,0}; + + // REQUEST AUTHENTICATION + len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, resp, respPar ,NULL); + if (len != 11) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]); + return 0; + } + + // tag nonce. + memcpy(enc_random_b,resp+1,8); + + // decrypt nonce. + // tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV ); + des3_set2key_dec(&ctx, key); + des3_crypt_cbc(&ctx // des3_context + , DES_DECRYPT // int mode + , sizeof(random_b) // length + , IV // iv[8] + , enc_random_b // input + , random_b // output + ); + + rol(random_b,8); + memcpy(rnd_ab ,random_a,8); + memcpy(rnd_ab+8,random_b,8); + + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) { + Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x", + enc_random_b[0],enc_random_b[1],enc_random_b[2],enc_random_b[3],enc_random_b[4],enc_random_b[5],enc_random_b[6],enc_random_b[7]); + + Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x", + random_b[0],random_b[1],random_b[2],random_b[3],random_b[4],random_b[5],random_b[6],random_b[7]); + + Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x", + rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]); + + Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x", + rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15] ); + } + + // encrypt out, in, length, key, iv + //tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b); + des3_set2key_enc(&ctx, key); + des3_crypt_cbc(&ctx // des3_context + , DES_ENCRYPT // int mode + , sizeof(rnd_ab) // length + , enc_random_b // iv[8] + , rnd_ab // input + , rnd_ab // output + ); + + //len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, resp, respPar, NULL); + len = mifare_sendcmd(0xAF, rnd_ab, sizeof(rnd_ab), resp, respPar, NULL); + if (len != 11) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]); + return 0; + } + + uint8_t enc_resp[8] = { 0,0,0,0,0,0,0,0 }; + uint8_t resp_random_a[8] = { 0,0,0,0,0,0,0,0 }; + memcpy(enc_resp, resp+1, 8); + + // decrypt out, in, length, key, iv + // tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b); + des3_set2key_dec(&ctx, key); + des3_crypt_cbc(&ctx // des3_context + , DES_DECRYPT // int mode + , 8 // length + , enc_random_b // iv[8] + , enc_resp // input + , resp_random_a // output + ); + if ( memcmp(resp_random_a, random_a, 8) != 0 ) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("failed authentication"); + return 0; + } + + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) { + Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", + rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3], + rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]); + + Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", + rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11], + rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15]); + + Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x", + random_a[0],random_a[1],random_a[2],random_a[3], + random_a[4],random_a[5],random_a[6],random_a[7]); + + Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x", + resp_random_a[0],resp_random_a[1],resp_random_a[2],resp_random_a[3], + resp_random_a[4],resp_random_a[5],resp_random_a[6],resp_random_a[7]); + } + return 1; +} + +int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData) +{ + uint16_t len; + uint8_t bt[2]; + uint8_t receivedAnswer[MAX_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_PARITY_SIZE]; + + + len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL); + if (len == 1) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + return 1; + } + if (len != 18) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: card timeout. len: %x", len); + return 2; + } + + memcpy(bt, receivedAnswer + 16, 2); + AppendCrc14443a(receivedAnswer, 16); + if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd CRC response error."); + return 3; + } + + memcpy(blockData, receivedAnswer, 14); + return 0; +} + int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) { // variables - int len, i; + uint16_t len, i; uint32_t pos; - uint32_t par = 0; - byte_t res; + uint8_t par[3] = {0}; // enough for 18 Bytes to send + byte_t res; uint8_t d_block[18], d_block_enc[18]; - uint8_t* receivedAnswer = mifare_get_bigbufptr(); + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE]; - // command MIFARE_CLASSIC_WRITEBLOCK - len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer); + // command MIFARE_CLASSIC_WRITEBLOCK + len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL); if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK - Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); return 1; } @@ -197,43 +458,450 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl AppendCrc14443a(d_block, 16); // crypto - par = 0; - for (pos = 0; pos < 18; pos++) - { - d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos]; - par = (par >> 1) | ( ((filter(pcs->odd) ^ oddparity(d_block[pos])) & 0x01) * 0x20000 ); - } + for (pos = 0; pos < 18; pos++) + { + d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos]; + par[pos>>3] |= (((filter(pcs->odd) ^ oddparity8(d_block[pos])) & 0x01) << (7 - (pos&0x0007))); + } - ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par); + ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par, NULL); - // Receive the response - len = ReaderReceive(receivedAnswer); + // Receive the response + len = ReaderReceive(receivedAnswer, receivedAnswerPar); res = 0; for (i = 0; i < 4; i++) res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], i)) << i; if ((len != 1) || (res != 0x0A)) { - Dbprintf("Cmd send data2 Error: %02x", res); + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd send data2 Error: %02x", res); return 2; } return 0; } +/* // command not needed, but left for future testing +int mifare_ultra_writeblock_compat(uint8_t blockNo, uint8_t *blockData) +{ + uint16_t len; + uint8_t par[3] = {0}; // enough for 18 parity bits + uint8_t d_block[18] = {0x00}; + uint8_t receivedAnswer[MAX_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_PARITY_SIZE]; + + len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL); + + if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK + if (MF_DBGLEVEL >= MF_DBG_ERROR) + Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]); + return 1; + } + + memcpy(d_block, blockData, 16); + AppendCrc14443a(d_block, 16); + + ReaderTransmitPar(d_block, sizeof(d_block), par, NULL); + + len = ReaderReceive(receivedAnswer, receivedAnswerPar); + + if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK + if (MF_DBGLEVEL >= MF_DBG_ERROR) + Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len); + return 2; + } + return 0; +} +*/ + +int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData) +{ + uint16_t len; + uint8_t d_block[5] = {0x00}; + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE]; + + // command MIFARE_CLASSIC_WRITEBLOCK + d_block[0]= blockNo; + memcpy(d_block+1,blockData,4); + //AppendCrc14443a(d_block, 6); + + len = mifare_sendcmd(0xA2, d_block, sizeof(d_block), receivedAnswer, receivedAnswerPar, NULL); + + if (receivedAnswer[0] != 0x0A) { // 0x0a - ACK + if (MF_DBGLEVEL >= MF_DBG_ERROR) + Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len); + return 1; + } + return 0; +} + int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) { - // variables - int len; + uint16_t len; + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE]; + + len = mifare_sendcmd_short(pcs, pcs == NULL ? false:true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL); + if (len != 0) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) + Dbprintf("halt error. response len: %x", len); + return 1; + } + + return 0; +} + +int mifare_ultra_halt() +{ + uint16_t len; + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE]; + + len = mifare_sendcmd_short(NULL, true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL); + if (len != 0) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) + Dbprintf("halt error. response len: %x", len); + return 1; + } + return 0; +} + + +// Mifare Memory Structure: up to 32 Sectors with 4 blocks each (1k and 2k cards), +// plus evtl. 8 sectors with 16 blocks each (4k cards) +uint8_t NumBlocksPerSector(uint8_t sectorNo) +{ + if (sectorNo < 32) + return 4; + else + return 16; +} + +uint8_t FirstBlockOfSector(uint8_t sectorNo) +{ + if (sectorNo < 32) + return sectorNo * 4; + else + return 32*4 + (sectorNo - 32) * 16; + +} + +uint8_t SectorTrailer(uint8_t blockNo) +{ + if (blockNo < 32*4) { + return (blockNo | 0x03); + } else { + return (blockNo | 0x0f); + } +} + +bool IsSectorTrailer(uint8_t blockNo) +{ + return (blockNo == SectorTrailer(blockNo)); +} + +// work with emulator memory +void emlSetMem(uint8_t *data, int blockNum, int blocksCount) { + uint8_t* emCARD = BigBuf_get_EM_addr(); + memcpy(emCARD + blockNum * 16, data, blocksCount * 16); +} + +void emlGetMem(uint8_t *data, int blockNum, int blocksCount) { + uint8_t* emCARD = BigBuf_get_EM_addr(); + memcpy(data, emCARD + blockNum * 16, blocksCount * 16); +} + +void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) { + uint8_t* emCARD = BigBuf_get_EM_addr(); + memcpy(data, emCARD + bytePtr, byteCount); +} + +int emlCheckValBl(int blockNum) { + uint8_t* emCARD = BigBuf_get_EM_addr(); + uint8_t* data = emCARD + blockNum * 16; + + if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) || + (data[1] != (data[5] ^ 0xff)) || (data[1] != data[9]) || + (data[2] != (data[6] ^ 0xff)) || (data[2] != data[10]) || + (data[3] != (data[7] ^ 0xff)) || (data[3] != data[11]) || + (data[12] != (data[13] ^ 0xff)) || (data[12] != data[14]) || + (data[12] != (data[15] ^ 0xff)) + ) + return 1; + return 0; +} + +int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) { + uint8_t* emCARD = BigBuf_get_EM_addr(); + uint8_t* data = emCARD + blockNum * 16; + + if (emlCheckValBl(blockNum)) { + return 1; + } + + memcpy(blReg, data, 4); + *blBlock = data[12]; + return 0; +} + +int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) { + uint8_t* emCARD = BigBuf_get_EM_addr(); + uint8_t* data = emCARD + blockNum * 16; + + memcpy(data + 0, &blReg, 4); + memcpy(data + 8, &blReg, 4); + blReg = blReg ^ 0xffffffff; + memcpy(data + 4, &blReg, 4); + + data[12] = blBlock; + data[13] = blBlock ^ 0xff; + data[14] = blBlock; + data[15] = blBlock ^ 0xff; + + return 0; +} + +uint64_t emlGetKey(int sectorNum, int keyType) { + uint8_t key[6]; + uint8_t* emCARD = BigBuf_get_EM_addr(); + + memcpy(key, emCARD + 16 * (FirstBlockOfSector(sectorNum) + NumBlocksPerSector(sectorNum) - 1) + keyType * 10, 6); + return bytes_to_num(key, 6); +} + +void emlClearMem(void) { + int b; + + const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + const uint8_t uid[] = {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04}; + uint8_t* emCARD = BigBuf_get_EM_addr(); + + memset(emCARD, 0, CARD_MEMORY_SIZE); + + // fill sectors trailer data + for(b = 3; b < 256; b<127?(b+=4):(b+=16)) { + emlSetMem((uint8_t *)trailer, b , 1); + } + + // uid + emlSetMem((uint8_t *)uid, 0, 1); + return; +} + + +// Mifare desfire commands +int mifare_sendcmd_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing) +{ + uint8_t dcmd[5] = {0x00}; + dcmd[0] = cmd; + memcpy(dcmd+1,data,2); + AppendCrc14443a(dcmd, 3); + + ReaderTransmit(dcmd, sizeof(dcmd), NULL); + int len = ReaderReceive(answer, answer_parity); + if(!len) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) + Dbprintf("Authentication failed. Card timeout."); + return 1; + } + return len; +} + +int mifare_sendcmd_special2(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer,uint8_t *answer_parity, uint32_t *timing) +{ + uint8_t dcmd[20] = {0x00}; + dcmd[0] = cmd; + memcpy(dcmd+1,data,17); + AppendCrc14443a(dcmd, 18); + + ReaderTransmit(dcmd, sizeof(dcmd), NULL); + int len = ReaderReceive(answer, answer_parity); + if(!len){ + if (MF_DBGLEVEL >= MF_DBG_ERROR) + Dbprintf("Authentication failed. Card timeout."); + return 1; + } + return len; +} + +int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData){ + + int len; + // load key, keynumber + uint8_t data[2]={0x0a, 0x00}; + uint8_t receivedAnswer[MAX_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_PARITY_SIZE]; + + len = mifare_sendcmd_special(NULL, 1, 0x02, data, receivedAnswer,receivedAnswerPar,NULL); + if (len == 1) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) + Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + return 1; + } - // Mifare HALT - uint8_t* receivedAnswer = mifare_get_bigbufptr(); + if (len == 12) { + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) { + Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", + receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4], + receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9], + receivedAnswer[10],receivedAnswer[11]); + } + memcpy(blockData, receivedAnswer, 12); + return 0; + } + return 1; +} + +int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){ - len = mifare_sendcmd_short(pcs, 1, 0x50, 0x00, receivedAnswer); - if (len != 0) { - Dbprintf("halt error. response len: %x", len); + int len; + uint8_t data[17] = {0x00}; + data[0] = 0xAF; + memcpy(data+1,key,16); + + uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE]; + uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE]; + + len = mifare_sendcmd_special2(NULL, 1, 0x03, data, receivedAnswer, receivedAnswerPar ,NULL); + + if ((receivedAnswer[0] == 0x03) && (receivedAnswer[1] == 0xae)) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) + Dbprintf("Auth Error: %02x %02x", receivedAnswer[0], receivedAnswer[1]); return 1; } + + if (len == 12){ + if (MF_DBGLEVEL >= MF_DBG_EXTENDED) { + Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", + receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4], + receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9], + receivedAnswer[10],receivedAnswer[11]); + } + memcpy(blockData, receivedAnswer, 12); + return 0; + } + return 1; +} + +//----------------------------------------------------------------------------- +// MIFARE check keys +// +//----------------------------------------------------------------------------- +// one key check +int MifareChkBlockKey(uint8_t *uid, uint32_t *cuid, uint8_t *cascade_levels, uint64_t ui64Key, uint8_t blockNo, uint8_t keyType, uint8_t debugLevel) { + + struct Crypto1State mpcs = {0, 0}; + struct Crypto1State *pcs; + pcs = &mpcs; + + // Iceman: use piwi's faster nonce collecting part in hardnested. + if (*cascade_levels == 0) { // need a full select cycle to get the uid first + iso14a_card_select_t card_info; + if(!iso14443a_select_card(uid, &card_info, cuid, true, 0, true)) { + if (debugLevel >= 1) Dbprintf("ChkKeys: Can't select card"); + return 1; + } + switch (card_info.uidlen) { + case 4 : *cascade_levels = 1; break; + case 7 : *cascade_levels = 2; break; + case 10: *cascade_levels = 3; break; + default: break; + } + } else { // no need for anticollision. We can directly select the card + if(!iso14443a_select_card(uid, NULL, NULL, false, *cascade_levels, true)) { + if (debugLevel >= 1) Dbprintf("ChkKeys: Can't select card (UID) lvl=%d", *cascade_levels); + return 1; + } + } + + if(mifare_classic_auth(pcs, *cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) { +// SpinDelayUs(AUTHENTICATION_TIMEOUT); // it not needs because mifare_classic_auth have timeout from iso14a_set_timeout() + return 2; + } else { +/* // let it be here. it like halt command, but maybe it will work in some strange cases + uint8_t dummy_answer = 0; + ReaderTransmit(&dummy_answer, 1, NULL); + int timeout = GetCountSspClk() + AUTHENTICATION_TIMEOUT; + // wait for the card to become ready again + while(GetCountSspClk() < timeout) {}; +*/ + // it needs after success authentication + mifare_classic_halt(pcs, *cuid); + } + + return 0; +} + +// multi key check +int MifareChkBlockKeys(uint8_t *keys, uint8_t keyCount, uint8_t blockNo, uint8_t keyType, uint8_t debugLevel) { + uint8_t uid[10]; + uint32_t cuid = 0; + uint8_t cascade_levels = 0; + uint64_t ui64Key = 0; + + int retryCount = 0; + for (uint8_t i = 0; i < keyCount; i++) { + + // Allow button press / usb cmd to interrupt device + if (BUTTON_PRESS() && !usb_poll_validate_length()) { + Dbprintf("ChkKeys: Cancel operation. Exit..."); + return -2; + } + + ui64Key = bytes_to_num(keys + i * 6, 6); + int res = MifareChkBlockKey(uid, &cuid, &cascade_levels, ui64Key, blockNo, keyType, debugLevel); + + // can't select + if (res == 1) { + retryCount++; + if (retryCount >= 5) { + Dbprintf("ChkKeys: block=%d key=%d. Can't select. Exit...", blockNo, keyType); + return -1; + } + --i; // try the same key once again + + SpinDelay(20); +// Dbprintf("ChkKeys: block=%d key=%d. Try the same key once again...", blockNo, keyType); + continue; + } + + // can't authenticate + if (res == 2) { + retryCount = 0; + continue; // can't auth. wrong key. + } + + return i + 1; + } + + return 0; +} + +// multisector multikey check +int MifareMultisectorChk(uint8_t *keys, uint8_t keyCount, uint8_t SectorCount, uint8_t keyType, uint8_t debugLevel, TKeyIndex *keyIndex) { + int res = 0; + +// int clk = GetCountSspClk(); + for(int sc = 0; sc < SectorCount; sc++){ + WDT_HIT(); + + int keyAB = keyType; + do { + res = MifareChkBlockKeys(keys, keyCount, FirstBlockOfSector(sc), keyAB & 0x01, debugLevel); + if (res < 0){ + return res; + } + if (res > 0){ + (*keyIndex)[keyAB & 0x01][sc] = res; + } + } while(--keyAB > 0); + } + +// Dbprintf("%d %d", GetCountSspClk() - clk, (GetCountSspClk() - clk)/(SectorCount*keyCount*(keyType==2?2:1))); + return 0; } + +