X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f397b5cc874ac7d658173199d92c30f3f717a300..f4bad97d92bf72dbb76f13c7fb7d2268129e01c3:/armsrc/mifareutil.c diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c index 53e785f5..0b93db8f 100644 --- a/armsrc/mifareutil.c +++ b/armsrc/mifareutil.c @@ -1,12 +1,12 @@ //----------------------------------------------------------------------------- -// 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 "proxmark3.h" @@ -21,18 +21,96 @@ int MF_DBGLEVEL = MF_DBG_ALL; +// memory management uint8_t* mifare_get_bigbufptr(void) { - return (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes + 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); } -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); +// 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; } -int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer, uint32_t * parptr) +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) { - uint8_t dcmd[4], ecmd[4]; + 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; + dcmd[1] = data[0]; + dcmd[2] = data[1]; + dcmd[3] = data[2]; + dcmd[4] = data[3]; + dcmd[5] = data[4]; + 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_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; @@ -49,10 +127,10 @@ int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cm par = (par >> 1) | ( ((filter(pcs->odd) ^ oddparity(dcmd[pos])) & 0x01) * 0x08 ); } - ReaderTransmitPar(ecmd, sizeof(ecmd), par); + ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing); } else { - ReaderTransmit(dcmd, sizeof(dcmd)); + ReaderTransmit(dcmd, sizeof(dcmd), timing); } int len = ReaderReceivePar(answer, &par); @@ -78,12 +156,13 @@ int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cm 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); + 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) +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; @@ -97,8 +176,8 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN 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); + 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; @@ -152,7 +231,7 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN } // Transmit reader nonce and reader answer - ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par); + ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par, NULL); // Receive 4 bit answer len = ReaderReceive(receivedAnswer); @@ -182,7 +261,7 @@ int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blo uint8_t* receivedAnswer = mifare_get_bigbufptr(); // command MIFARE_CLASSIC_READBLOCK - len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer); + 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; @@ -200,12 +279,43 @@ int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blo } memcpy(blockData, receivedAnswer, 16); - return 0; -} - -int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) -{ - // variables + return 0; +} + +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; @@ -215,7 +325,7 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl uint8_t* receivedAnswer = mifare_get_bigbufptr(); // command MIFARE_CLASSIC_WRITEBLOCK - len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer); + 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]); @@ -233,7 +343,7 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl par = (par >> 1) | ( ((filter(pcs->odd) ^ oddparity(d_block[pos])) & 0x01) * 0x20000 ); } - 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); @@ -247,22 +357,211 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl return 2; } - return 0; -} - -int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) -{ - // variables + 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, 1, 0x50, 0x00, receivedAnswer); + 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; +} + + +// 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; + +} + + +// 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 + 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 = 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; +}