X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/aea4d76687f3aa3d5dcd0fc5cf3d36f8f753994c..c936a22f1921f5dd8ebf49a8d1a0fab60337dd31:/armsrc/mifareutil.c diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c index a88f21bc..ce43dc3b 100644 --- a/armsrc/mifareutil.c +++ b/armsrc/mifareutil.c @@ -1,413 +1,732 @@ -//----------------------------------------------------------------------------- -// Merlok, May 2011 -// 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. -//----------------------------------------------------------------------------- -// Work with mifare cards. -//----------------------------------------------------------------------------- - -#include "proxmark3.h" -#include "apps.h" -#include "util.h" -#include "string.h" - -#include "iso14443crc.h" -#include "iso14443a.h" -#include "crapto1.h" -#include "mifareutil.h" - -int MF_DBGLEVEL = MF_DBG_ALL; - -// memory management -uint8_t* mifare_get_bigbufptr(void) { - return (((uint8_t *)BigBuf) + MIFARE_BUFF_OFFSET); // was 3560 - tied to other size changes -} -uint8_t* eml_get_bigbufptr_sendbuf(void) { - return (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); -} -uint8_t* eml_get_bigbufptr_recbuf(void) { - return (((uint8_t *)BigBuf) + MIFARE_BUFF_OFFSET); -} -uint8_t* eml_get_bigbufptr_cardmem(void) { - return (((uint8_t *)BigBuf) + CARD_MEMORY); -} - -// crypto1 helpers -void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){ - uint8_t bt = 0; - int i; - - if (len != 1) { - for (i = 0; i < len; i++) - data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i]; - } else { - bt = 0; - for (i = 0; i < 4; i++) - bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], i)) << i; - - data[0] = bt; - } - return; -} - -void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, int len, uint32_t *par) { - uint8_t bt = 0; - int i; - uint32_t mltpl = 1 << (len - 1); // for len=18 it=0x20000 - *par = 0; - for (i = 0; i < len; i++) { - bt = data[i]; - data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i]; - *par = (*par >> 1) | ( ((filter(pcs->odd) ^ oddparity(bt)) & 0x01) * mltpl ); - } - return; -} - -uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) { - uint8_t bt = 0; - int i; - - for (i = 0; i < 4; i++) - bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, i)) << i; - - return bt; -} - -// send commands -int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer) -{ - return mifare_sendcmd_shortex(pcs, crypted, cmd, data, answer, NULL); -} - -int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer, uint32_t * parptr) -{ - uint8_t dcmd[4], ecmd[4]; - uint32_t pos, par, res; - - dcmd[0] = cmd; - dcmd[1] = data; - AppendCrc14443a(dcmd, 2); - - memcpy(ecmd, dcmd, sizeof(dcmd)); - - if (crypted) { - par = 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 ); - } - - ReaderTransmitPar(ecmd, sizeof(ecmd), par); - - } else { - ReaderTransmit(dcmd, sizeof(dcmd)); - } - - int len = ReaderReceivePar(answer, &par); - - if (parptr) *parptr = par; - - if (crypted == CRYPT_ALL) { - if (len == 1) { - res = 0; - for (pos = 0; pos < 4; pos++) - res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], pos)) << pos; - - answer[0] = res; - - } else { - for (pos = 0; pos < len; pos++) - { - answer[pos] = crypto1_byte(pcs, 0x00, 0) ^ answer[pos]; - } - } - } - - return len; -} - -// mifare commands -int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint64_t isNested) -{ - return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL); -} - -int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint64_t isNested, uint32_t * ntptr) -{ - // variables - int len; - uint32_t pos; - uint8_t tmp4[4]; - byte_t par = 0; - byte_t ar[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); - if (MF_DBGLEVEL >= 4) Dbprintf("rand nonce len: %x", len); - if (len != 4) return 1; - - ar[0] = 0x55; - ar[1] = 0x41; - ar[2] = 0x49; - ar[3] = 0x92; - - // Save the tag nonce (nt) - nt = bytes_to_num(receivedAnswer, 4); - - // ----------------------------- crypto1 create - if (isNested) - crypto1_destroy(pcs); - - // Init cipher with key - crypto1_create(pcs, ui64Key); - - 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 ); - } - - // Skip 32 bits in pseudo random generator - nt = prng_successor(nt,32); - - // ar+parity - 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 ); - } - - // Transmit reader nonce and reader answer - ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par); - - // Receive 4 bit answer - len = ReaderReceive(receivedAnswer); - if (!len) - { - if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout."); - return 2; - } - - memcpy(tmp4, receivedAnswer, 4); - ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0,0); - - if (ntpp != bytes_to_num(tmp4, 4)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Error card response."); - return 3; - } - - return 0; -} - -int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) -{ - // variables - int len; - uint8_t bt[2]; - - uint8_t* receivedAnswer = mifare_get_bigbufptr(); - - // command MIFARE_CLASSIC_READBLOCK - len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer); - if (len == 1) { - if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); - return 1; - } - if (len != 18) { - if (MF_DBGLEVEL >= 1) 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 >= 1) Dbprintf("Cmd CRC response error."); - return 3; - } - - memcpy(blockData, receivedAnswer, 16); - return 0; -} - -int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) -{ - // variables - int len, i; - uint32_t pos; - uint32_t par = 0; - byte_t res; - - uint8_t d_block[18], d_block_enc[18]; - uint8_t* receivedAnswer = mifare_get_bigbufptr(); - - // command MIFARE_CLASSIC_WRITEBLOCK - len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer); - - if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK - if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); - return 1; - } - - memcpy(d_block, blockData, 16); - 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 ); - } - - ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par); - - // Receive the response - len = ReaderReceive(receivedAnswer); - - res = 0; - for (i = 0; i < 4; i++) - res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], i)) << i; - - if ((len != 1) || (res != 0x0A)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Cmd send data2 Error: %02x", res); - return 2; - } - - return 0; -} - -int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) -{ - // variables - int len; - - // Mifare HALT - uint8_t* receivedAnswer = mifare_get_bigbufptr(); - - len = mifare_sendcmd_short(pcs, 1, 0x50, 0x00, receivedAnswer); - if (len != 0) { - if (MF_DBGLEVEL >= 1) Dbprintf("halt error. response len: %x", len); - return 1; - } - - return 0; -} - -// work with emulator memory -void emlSetMem(uint8_t *data, int blockNum, int blocksCount) { - uint8_t* emCARD = eml_get_bigbufptr_cardmem(); - - memcpy(emCARD + blockNum * 16, data, blocksCount * 16); -} - -void emlGetMem(uint8_t *data, int blockNum, int blocksCount) { - uint8_t* emCARD = eml_get_bigbufptr_cardmem(); - - memcpy(data, emCARD + blockNum * 16, blocksCount * 16); -} - -void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) { - uint8_t* emCARD = eml_get_bigbufptr_cardmem(); - - memcpy(data, emCARD + bytePtr, byteCount); -} - -int emlCheckValBl(int blockNum) { - uint8_t* emCARD = eml_get_bigbufptr_cardmem(); - 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 = eml_get_bigbufptr_cardmem(); - 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 = eml_get_bigbufptr_cardmem(); - 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 = eml_get_bigbufptr_cardmem(); - - memcpy(key, emCARD + 3 * 16 + sectorNum * 4 * 16 + 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 = eml_get_bigbufptr_cardmem(); - - memset(emCARD, 0, CARD_MEMORY_LEN); - - // 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; -} +//----------------------------------------------------------------------------- +// 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. +//----------------------------------------------------------------------------- +// Work with mifare cards. +//----------------------------------------------------------------------------- + +#include "proxmark3.h" +#include "apps.h" +#include "util.h" +#include "string.h" +#include +#include + +#include "iso14443crc.h" +#include "iso14443a.h" +#include "crapto1.h" +#include "mifareutil.h" + +int MF_DBGLEVEL = MF_DBG_ALL; + +// memory management +uint8_t* mifare_get_bigbufptr(void) { + return (((uint8_t *)BigBuf) + MIFARE_BUFF_OFFSET); // was 3560 - tied to other size changes +} +uint8_t* eml_get_bigbufptr_sendbuf(void) { + return (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); +} +uint8_t* eml_get_bigbufptr_recbuf(void) { + return (((uint8_t *)BigBuf) + MIFARE_BUFF_OFFSET); +} +uint8_t* eml_get_bigbufptr_cardmem(void) { + return (((uint8_t *)BigBuf) + CARD_MEMORY); +} + +// crypto1 helpers +void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){ + uint8_t bt = 0; + int i; + + if (len != 1) { + for (i = 0; i < len; i++) + data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i]; + } else { + bt = 0; + for (i = 0; i < 4; i++) + bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], i)) << i; + + data[0] = bt; + } + return; +} + +void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, int len, uint32_t *par) { + uint8_t bt = 0; + int i; + uint32_t mltpl = 1 << (len - 1); // for len=18 it=0x20000 + *par = 0; + for (i = 0; i < len; i++) { + bt = data[i]; + data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i]; + *par = (*par >> 1) | ( ((filter(pcs->odd) ^ oddparity(bt)) & 0x01) * mltpl ); + } + return; +} + +uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) { + uint8_t bt = 0; + int i; + + for (i = 0; i < 4; i++) + bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, i)) << i; + + return bt; +} + +// send commands +int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer, uint32_t *timing) +{ + return mifare_sendcmd_shortex(pcs, crypted, cmd, data, answer, NULL, timing); +} + +int mifare_sendcmd_short_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *timing) +{ + uint8_t dcmd[8];//, ecmd[4]; + //uint32_t par=0; + + dcmd[0] = cmd; + memcpy(dcmd+1,data,5); + AppendCrc14443a(dcmd, 6); + //Dbprintf("Data command: %02x", dcmd[0]); + //Dbprintf("Data R: %02x %02x %02x %02x %02x %02x %02x", dcmd[1],dcmd[2],dcmd[3],dcmd[4],dcmd[5],dcmd[6],dcmd[7]); + + //memcpy(ecmd, dcmd, sizeof(dcmd)); + ReaderTransmit(dcmd, sizeof(dcmd), NULL); + int len = ReaderReceive(answer); + if(!len) + { + if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout."); + return 2; + } + + return len; +} + +int mifare_sendcmd_short_mfucauth(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint32_t *timing) +{ + uint8_t dcmd[19];//, ecmd[4]; + int len; + //uint32_t par=0; + + dcmd[0] = cmd; + memcpy(dcmd+1,data,16); + AppendCrc14443a(dcmd, 17); + //Dbprintf("Data command: %02x", dcmd[0]); + //Dbprintf("Data R: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", dcmd[0], dcmd[1],dcmd[2],dcmd[3],dcmd[4],dcmd[5],dcmd[6],dcmd[7],dcmd[8],dcmd[9],dcmd[10],dcmd[11],dcmd[12],dcmd[13],dcmd[14],dcmd[15],dcmd[16],dcmd[17],dcmd[18]); + + //uint32_t time=0; + //uint8_t wupa[] = { 0x52 }; + //ReaderTransmitBitsPar(wupa,7,0, NULL); + // Receive the ATQA + //if(!ReaderReceive(answer)) return 0; + + ReaderTransmit(dcmd, sizeof(dcmd), timing); + len = ReaderReceive(answer); + if(!len) + { + if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout."); + len = ReaderReceive(answer); + } + if(len==1) + { + if (MF_DBGLEVEL >= 1) Dbprintf("NAK - Authentication failed."); + return 1; + } + return len; +} + +int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer, uint32_t * parptr, uint32_t *timing) +{ + uint8_t dcmd[4], ecmd[4]; + uint32_t pos, par, res; + + dcmd[0] = cmd; + dcmd[1] = data; + AppendCrc14443a(dcmd, 2); + + memcpy(ecmd, dcmd, sizeof(dcmd)); + + if (crypted) { + par = 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 ); + } + + ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing); + + } else { + ReaderTransmit(dcmd, sizeof(dcmd), timing); + } + + int len = ReaderReceivePar(answer, &par); + + if (parptr) *parptr = par; + + if (crypted == CRYPT_ALL) { + if (len == 1) { + res = 0; + for (pos = 0; pos < 4; pos++) + res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], pos)) << pos; + + answer[0] = res; + + } else { + for (pos = 0; pos < len; pos++) + { + answer[pos] = crypto1_byte(pcs, 0x00, 0) ^ answer[pos]; + } + } + } + + return len; +} + +// mifare commands +int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint64_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, uint64_t isNested, uint32_t * ntptr, uint32_t *timing) +{ + // variables + int len; + uint32_t pos; + uint8_t tmp4[4]; + byte_t par = 0; + byte_t ar[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, timing); + if (MF_DBGLEVEL >= 4) Dbprintf("rand nonce len: %x", len); + if (len != 4) return 1; + + ar[0] = 0x55; + ar[1] = 0x41; + ar[2] = 0x49; + ar[3] = 0x92; + + // Save the tag nonce (nt) + nt = bytes_to_num(receivedAnswer, 4); + + // ----------------------------- crypto1 create + if (isNested) + crypto1_destroy(pcs); + + // Init cipher with key + crypto1_create(pcs, ui64Key); + + 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 ); + } + + // Skip 32 bits in pseudo random generator + nt = prng_successor(nt,32); + + // ar+parity + 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 ); + } + + // Transmit reader nonce and reader answer + ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par, NULL); + + // Receive 4 bit answer + len = ReaderReceive(receivedAnswer); + if (!len) + { + if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout."); + return 2; + } + + memcpy(tmp4, receivedAnswer, 4); + ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0,0); + + if (ntpp != bytes_to_num(tmp4, 4)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Error card response."); + return 3; + } + + return 0; +} + +int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) +{ + // variables + int len; + uint8_t bt[2]; + + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + // command MIFARE_CLASSIC_READBLOCK + len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer, NULL); + if (len == 1) { + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + return 1; + } + if (len != 18) { + if (MF_DBGLEVEL >= 1) 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 >= 1) Dbprintf("Cmd CRC response error."); + return 3; + } + + memcpy(blockData, receivedAnswer, 16); + return 0; +} + +int mifare_ultra_auth1(uint32_t uid, uint8_t *blockData){ + // variables + int len; + + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + // command MIFARE_CLASSIC_READBLOCK + len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,NULL); + if (len == 1) { + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + return 1; + } + if (len == 11) { + if (MF_DBGLEVEL >= 1) 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]); + memcpy(blockData, receivedAnswer, 11); + return 0; + } + //else something went wrong??? + return 1; +} + +int mifare_ultra_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){ + // variables + int len; + + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + + // command MIFARE_CLASSIC_READBLOCK + len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, key, receivedAnswer,NULL); + if (len == 1) { + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + return 1; + } + if (len == 11){ + if (MF_DBGLEVEL >= 1) 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]); + memcpy(blockData, receivedAnswer, 11); + return 0; + } + //something went wrong? + return 1; +} + +int mifare_ultra_readblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData) +{ + // variables + int len; + uint8_t bt[2]; + + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + // command MIFARE_CLASSIC_READBLOCK + len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer,NULL); + if (len == 1) { + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + return 1; + } + if (len != 18) { + if (MF_DBGLEVEL >= 1) 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 >= 1) 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; + uint32_t pos; + uint32_t par = 0; + byte_t res; + + uint8_t d_block[18], d_block_enc[18]; + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + // command MIFARE_CLASSIC_WRITEBLOCK + len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer, NULL); + + if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + return 1; + } + + memcpy(d_block, blockData, 16); + 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 ); + } + + ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par, NULL); + + // Receive the response + len = ReaderReceive(receivedAnswer); + + res = 0; + for (i = 0; i < 4; i++) + res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], i)) << i; + + if ((len != 1) || (res != 0x0A)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd send data2 Error: %02x", res); + return 2; + } + + return 0; +} + +int mifare_ultra_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData) +{ + // variables + int len; + uint32_t par = 0; + + uint8_t d_block[18]; + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + // command MIFARE_CLASSIC_WRITEBLOCK + len = mifare_sendcmd_short(NULL, 1, 0xA0, blockNo, receivedAnswer,NULL); + + if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]); + return 1; + } + + memset(d_block,'\0',18); + memcpy(d_block, blockData, 16); + AppendCrc14443a(d_block, 16); + + ReaderTransmitPar(d_block, sizeof(d_block), par, NULL); + + // Receive the response + len = ReaderReceive(receivedAnswer); + + if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len); + return 2; + } + + return 0; +} + +int mifare_ultra_special_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData) +{ + // variables + int len; + //uint32_t par = 0; + + uint8_t d_block[8]; + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + // command MIFARE_CLASSIC_WRITEBLOCK + memset(d_block,'\0',8); + d_block[0]= blockNo; + memcpy(d_block+1,blockData,4); + AppendCrc14443a(d_block, 6); + + //i know the data send here is correct + len = mifare_sendcmd_short_special(NULL, 1, 0xA2, d_block, receivedAnswer,NULL); + + if (receivedAnswer[0] != 0x0A) { // 0x0a - ACK + if (MF_DBGLEVEL >= 1) 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; + + // Mifare HALT + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + len = mifare_sendcmd_short(pcs, pcs == NULL ? 0:1, 0x50, 0x00, receivedAnswer, NULL); + if (len != 0) { + if (MF_DBGLEVEL >= 1) Dbprintf("halt error. response len: %x", len); + return 1; + } + + return 0; +} + +int mifare_ultra_halt(uint32_t uid) +{ + // variables + int len; + + // Mifare HALT + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + len = mifare_sendcmd_short(NULL, 1, 0x50, 0x00, receivedAnswer, NULL); + if (len != 0) { + if (MF_DBGLEVEL >= 1) Dbprintf("halt error. response len: %x", len); + return 1; + } + + return 0; +} + +// work with emulator memory +void emlSetMem(uint8_t *data, int blockNum, int blocksCount) { + uint8_t* emCARD = eml_get_bigbufptr_cardmem(); + + memcpy(emCARD + blockNum * 16, data, blocksCount * 16); +} + +void emlGetMem(uint8_t *data, int blockNum, int blocksCount) { + uint8_t* emCARD = eml_get_bigbufptr_cardmem(); + + memcpy(data, emCARD + blockNum * 16, blocksCount * 16); +} + +void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) { + uint8_t* emCARD = eml_get_bigbufptr_cardmem(); + + memcpy(data, emCARD + bytePtr, byteCount); +} + +int emlCheckValBl(int blockNum) { + uint8_t* emCARD = eml_get_bigbufptr_cardmem(); + 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 = eml_get_bigbufptr_cardmem(); + 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 = eml_get_bigbufptr_cardmem(); + 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 = eml_get_bigbufptr_cardmem(); + + memcpy(key, emCARD + 3 * 16 + sectorNum * 4 * 16 + 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 = eml_get_bigbufptr_cardmem(); + + memset(emCARD, 0, CARD_MEMORY_LEN); + + // 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; +} + +// +//DESFIRE +// + +int mifare_sendcmd_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *timing) +{ + uint8_t dcmd[5];//, ecmd[4]; + //dcmd= (uint8_t *) malloc(data_len+3); + //uint32_t par=0; + + dcmd[0] = cmd; + memcpy(dcmd+1,data,2); + AppendCrc14443a(dcmd, 3); + //Dbprintf("Data command: %02x", dcmd[0]); + //Dbprintf("Data R: %02x %02x", dcmd[1],dcmd[2]); + + //memcpy(ecmd, dcmd, sizeof(dcmd)); + ReaderTransmit(dcmd, sizeof(dcmd), NULL); + int len = ReaderReceive(answer); + if(!len) + { + if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout."); + return 2; + } + //free(dcmd); + return len; +} + + +int mifare_sendcmd_special2(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *timing) +{ + uint8_t dcmd[20];//, ecmd[4]; + //dcmd= (uint8_t *) malloc(data_len+3); + //uint32_t par=0; + + dcmd[0] = cmd; + memcpy(dcmd+1,data,17); + AppendCrc14443a(dcmd, 18); + //Dbprintf("Data command: %02x", dcmd[0]); + //Dbprintf("Data R: %02x %02x %02x %02x", dcmd[1],dcmd[2],dcmd[3],dcmd[4]); + + //memcpy(ecmd, dcmd, sizeof(dcmd)); + ReaderTransmit(dcmd, sizeof(dcmd), NULL); + int len = ReaderReceive(answer); + if(!len) + { + if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout."); + return 2; + } + //free(dcmd); + return len; +} + +int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData){ + // variables + int len; + // load key, keynumber + uint8_t data[2]={0x0a, 0x00}; + //uint8_t data_len=2; + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + // command MIFARE_CLASSIC_READBLOCK + len = mifare_sendcmd_special(NULL, 1, 0x02, data, receivedAnswer,NULL); + if (len == 1) { + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + return 1; + } + if (len == 12) { + if (MF_DBGLEVEL >= 1) 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; + } + //else something went wrong??? + return 1; +} + +int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){ + // variables + int len; + uint8_t data[17]={0xaf,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; + memcpy(data+1,key,16); + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + + // command MIFARE_CLASSIC_READBLOCK + len = mifare_sendcmd_special2(NULL, 1, 0x03, data, receivedAnswer,NULL); + if ((receivedAnswer[0] == 0x03)&&(receivedAnswer[1] == 0xae)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Auth Error: %02x %02x", receivedAnswer[0], receivedAnswer[1]); + return 1; + } + if (len == 12){ + if (MF_DBGLEVEL >= 1) 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; + } + //something went wrong? + return 1; +} \ No newline at end of file