X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/1eb874ee3f7690cc92a720c0636fbe100e82b1e5..3458bb279b00048892e56cec6f0a13e8c03f97db:/armsrc/mifareutil.c diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c index 976f6dca..93df109c 100644 --- a/armsrc/mifareutil.c +++ b/armsrc/mifareutil.c @@ -9,135 +9,127 @@ // 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 "mbedtls/des.h" +#include "protocols.h" -int MF_DBGLEVEL = MF_DBG_ALL; - -// memory management -uint8_t* get_bigbufptr_recvrespbuf(void) { - return (((uint8_t *)BigBuf) + RECV_RESP_OFFSET); -} -uint8_t* get_bigbufptr_recvcmdbuf(void) { - return (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); -} -uint8_t* get_bigbufptr_emlcardmem(void) { - return (((uint8_t *)BigBuf) + CARD_MEMORY_OFFSET); -} +int MF_DBGLEVEL = MF_DBG_INFO; // crypto1 helpers -void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){ - uint8_t bt = 0; +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[i] = crypto1_byte(pcs, 0x00, 0) ^ data[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[0], i)) << i; - - data[0] = bt; + bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data_in[0], i)) << i; + + data_out[0] = bt; } return; } -void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par) { +void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){ + mf_crypto1_decryptEx(pcs, data, len, data); +} + +void mf_crypto1_encryptEx(struct Crypto1State *pcs, uint8_t *data, uint8_t *in, 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) + data[i] = crypto1_byte(pcs, in==NULL?0x00:in[i], 0) ^ data[i]; + if((i&0x0007) == 0) par[i>>3] = 0; - par[i>>3] |= (((filter(pcs->odd) ^ oddparity(bt)) & 0x01)<<(7-(i&0x0007))); - } + par[i>>3] |= (((filter(pcs->odd) ^ oddparity8(bt)) & 0x01)<<(7-(i&0x0007))); + } return; } +void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par) { + mf_crypto1_encryptEx(pcs, data, NULL, len, par); +} + 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, uint8_t *answer_parity, uint32_t *timing) +// 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) { - return mifare_sendcmd_shortex(pcs, crypted, cmd, data, answer, answer_parity, timing); -} - -int mifare_sendcmd_short_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[8]; - 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); - ReaderTransmit(dcmd, sizeof(dcmd), NULL); - int len = ReaderReceive(answer, answer_parity); - 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, uint8_t *answer_parity, uint32_t *timing) -{ - uint8_t dcmd[4], ecmd[4]; + 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 + uint8_t par[1]; // 1 Byte parity is enough here dcmd[0] = cmd; dcmd[1] = data; AppendCrc14443a(dcmd, 2); - + memcpy(ecmd, dcmd, sizeof(dcmd)); - + if (crypted) { par[0] = 0; for (pos = 0; pos < 4; pos++) { ecmd[pos] = crypto1_byte(pcs, 0x00, 0) ^ dcmd[pos]; - par[0] |= (((filter(pcs->odd) ^ oddparity(dcmd[pos])) & 0x01) << (7-pos)); - } - + par[0] |= (((filter(pcs->odd) ^ oddparity8(dcmd[pos])) & 0x01) << (7-pos)); + } ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing); - } else { ReaderTransmit(dcmd, sizeof(dcmd), timing); } 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++) res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], pos)) << pos; - + answer[0] = res; - + } else { for (pos = 0; pos < len; pos++) { @@ -145,41 +137,41 @@ int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cm } } } - + return len; } + // 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_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested, uint32_t *auth_timeout) { + + return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL, NULL, auth_timeout); } -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 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, uint32_t *auth_timeout) { + + int len; uint32_t pos; - uint8_t tmp4[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 = get_bigbufptr_recvrespbuf(); - uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE; - + 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); + len = mifare_sendcmd_short(pcs, isNested, keyType & 0x01 ? MIFARE_AUTH_KEYB : MIFARE_AUTH_KEYA, blockNo, receivedAnswer, receivedAnswerPar, timing); + if (MF_DBGLEVEL >= 4) Dbprintf("rand tag nonce len: %x", len); if (len != 4) return 1; - + // "random" reader nonce: nr[0] = 0x55; nr[1] = 0x41; nr[2] = 0x49; - nr[3] = 0x92; - + nr[3] = 0x92; + // Save the tag nonce (nt) nt = bytes_to_num(receivedAnswer, 4); @@ -191,7 +183,7 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN crypto1_create(pcs, ui64Key); if (isNested == AUTH_NESTED) { - // decrypt nt with help of new key + // decrypt nt with help of new key nt = crypto1_word(pcs, nt ^ uid, 1) ^ nt; } else { // Load (plain) uid^nt into the cipher @@ -200,289 +192,458 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN // some statistic if (!ntptr && (MF_DBGLEVEL >= 3)) - Dbprintf("auth uid: %08x nt: %08x", uid, nt); - + Dbprintf("auth uid: %08x nt: %08x", uid, nt); + // save Nt if (ntptr) *ntptr = nt; // Generate (encrypted) nr+parity by loading it into the cipher (Nr) par[0] = 0; - for (pos = 0; pos < 4; pos++) - { + for (pos = 0; pos < 4; pos++) { mf_nr_ar[pos] = crypto1_byte(pcs, nr[pos], 0) ^ nr[pos]; - par[0] |= (((filter(pcs->odd) ^ oddparity(nr[pos])) & 0x01) << (7-pos)); - } - + par[0] |= (((filter(pcs->odd) ^ oddparity8(nr[pos])) & 0x01) << (7-pos)); + } + // 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[0] |= (((filter(pcs->odd) ^ oddparity(nt & 0xff)) & 0x01) << (7-pos)); - } - + 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, NULL); // Receive 4 byte tag answer + uint32_t save_timeout = iso14a_get_timeout(); // save standard timeout + if (auth_timeout && *auth_timeout) { + iso14a_set_timeout(*auth_timeout); // set timeout for authentication response + } + uint32_t auth_timeout_start = GetCountSspClk(); len = ReaderReceive(receivedAnswer, receivedAnswerPar); - if (!len) - { - if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout."); + iso14a_set_timeout(save_timeout); // restore standard timeout + 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."); + if (auth_timeout && !*auth_timeout) { // measure time for future authentication response timeout + *auth_timeout = (GetCountSspClk() - auth_timeout_start - (len * 9 + 2) * 8) / 8 + 1; + } + + ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0, 0); + + if (ntpp != bytes_to_num(receivedAnswer, 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) -{ + +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 = get_bigbufptr_recvrespbuf(); - uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE; - + int len; + uint8_t bt[2]; + + 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, receivedAnswerPar, NULL); + len = mifare_sendcmd_short(pcs, 1, MIFARE_CMD_READBLOCK, blockNo, receivedAnswer, receivedAnswerPar, NULL); if (len == 1) { - if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + 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); + 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."); + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd CRC response error."); return 3; } - + memcpy(blockData, receivedAnswer, 16); - return 0; -} - -int mifare_ultra_readblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData) -{ - uint16_t len; - uint8_t bt[2]; - uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf(); - uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE; - - - // command MIFARE_CLASSIC_READBLOCK - 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 - uint16_t len, i; + 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(MIFARE_ULEV1_AUTH, 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 + + mbedtls_des3_context ctx = { {0} }; + 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, MIFARE_ULC_AUTH_1, 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 ); + mbedtls_des3_set2key_dec(&ctx, key); + mbedtls_des3_crypt_cbc(&ctx // des3_context + , MBEDTLS_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); + mbedtls_des3_set2key_enc(&ctx, key); + mbedtls_des3_crypt_cbc(&ctx // des3_context + , MBEDTLS_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(MIFARE_ULC_AUTH_2, 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); + mbedtls_des3_set2key_dec(&ctx, key); + mbedtls_des3_crypt_cbc(&ctx // des3_context + , MBEDTLS_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; +} + + +#define MFU_MAX_RETRIES 5 +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]; + uint8_t retries; + int result = 0; + + for (retries = 0; retries < MFU_MAX_RETRIES; retries++) { + len = mifare_sendcmd_short(NULL, 1, MIFARE_CMD_READBLOCK, blockNo, receivedAnswer, receivedAnswerPar, NULL); + if (len == 1) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + result = 1; + continue; + } + if (len != 18) { + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: card timeout. len: %x", len); + result = 2; + continue; + } + + 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."); + result = 3; + continue; + } + + // No errors encountered; don't retry + result = 0; + break; + } + + if (result != 0) { + Dbprintf("Cmd Error: too many retries; read failed"); + return result; + } + + memcpy(blockData, receivedAnswer, 16); + return 0; +} + +int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) +{ + // variables + uint16_t len, i; uint32_t pos; - uint8_t par[3] = {0}; // enough for 18 Bytes to send + 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 = get_bigbufptr_recvrespbuf(); - uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE; - + 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, receivedAnswerPar, NULL); + len = mifare_sendcmd_short(pcs, 1, MIFARE_CMD_WRITEBLOCK, blockNo, receivedAnswer, receivedAnswerPar, NULL); if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK - if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); + if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); return 1; } - + memcpy(d_block, blockData, 16); AppendCrc14443a(d_block, 16); - + // crypto for (pos = 0; pos < 18; pos++) { d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos]; - par[pos>>3] |= (((filter(pcs->odd) ^ oddparity(d_block[pos])) & 0x01) << (7 - (pos&0x0007))); - } + par[pos>>3] |= (((filter(pcs->odd) ^ oddparity8(d_block[pos])) & 0x01) << (7 - (pos&0x0007))); + } ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par, NULL); // Receive the response - len = ReaderReceive(receivedAnswer, receivedAnswerPar); + 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)) { - if (MF_DBGLEVEL >= 1) Dbprintf("Cmd send data2 Error: %02x", res); + 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) -{ - uint16_t len; - uint8_t par[3] = {0}; // enough for 18 parity bits - uint8_t d_block[18] = {0x00}; - uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf(); - uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE; - - // command MIFARE_CLASSIC_WRITEBLOCK - len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL); - - if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK + + 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, MIFARE_CMD_WRITEBLOCK, 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 + 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_special_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData) -{ - uint16_t len; - uint8_t d_block[8] = {0x00}; - uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf(); - uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE; - - // command MIFARE_CLASSIC_WRITEBLOCK - d_block[0]= blockNo; - memcpy(d_block+1,blockData,4); - AppendCrc14443a(d_block, 6); - - len = mifare_sendcmd_short_special(NULL, 1, 0xA2, d_block, receivedAnswer, receivedAnswerPar, NULL); - - if (receivedAnswer[0] != 0x0A) { // 0x0a - ACK + 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) -{ - uint16_t len; - uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf(); - uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE; - - len = mifare_sendcmd_short(pcs, pcs == NULL ? false:true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL); + Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len); + return 1; + } + return 0; +} + +int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) +{ + 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, ISO14443A_CMD_HALT, 0x00, receivedAnswer, receivedAnswerPar, NULL); if (len != 0) { if (MF_DBGLEVEL >= MF_DBG_ERROR) - Dbprintf("halt error. response len: %x", len); + Dbprintf("halt error. response len: %x", len); return 1; } - return 0; -} - -int mifare_ultra_halt(uint32_t uid) -{ - uint16_t len; - uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf(); - uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE; - - len = mifare_sendcmd_short(NULL, true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL); - if (len != 0) { + 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, ISO14443A_CMD_HALT, 0x00, receivedAnswer, receivedAnswerPar, NULL); + if (len != 0) { if (MF_DBGLEVEL >= MF_DBG_ERROR) - Dbprintf("halt error. response len: %x", len); - return 1; - } - return 0; -} - + 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) +uint8_t NumBlocksPerSector(uint8_t sectorNo) { - if (sectorNo < 32) + if (sectorNo < 32) return 4; else return 16; } -uint8_t FirstBlockOfSector(uint8_t sectorNo) +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 = get_bigbufptr_emlcardmem(); +// 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 = get_bigbufptr_emlcardmem(); + 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 = get_bigbufptr_emlcardmem(); + uint8_t* emCARD = BigBuf_get_EM_addr(); memcpy(data, emCARD + bytePtr, byteCount); } int emlCheckValBl(int blockNum) { - uint8_t* emCARD = get_bigbufptr_emlcardmem(); + uint8_t* emCARD = BigBuf_get_EM_addr(); uint8_t* data = emCARD + blockNum * 16; if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) || @@ -491,64 +652,274 @@ int emlCheckValBl(int blockNum) { (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 = get_bigbufptr_emlcardmem(); + 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 = get_bigbufptr_emlcardmem(); + 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 = get_bigbufptr_emlcardmem(); - + 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 = get_bigbufptr_emlcardmem(); - + 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; + } + + 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){ + + 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, uint32_t *auth_timeout, 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, auth_timeout)) { // authentication failed + return 2; + } else { + mifare_classic_halt(pcs, *cuid); + } + + return 0; +} + + +// multi key check +int MifareChkBlockKeys(uint8_t *keys, uint8_t keyCount, uint8_t blockNo, uint8_t keyType, uint32_t *auth_timeout, 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++) { + + ui64Key = bytes_to_num(keys + i * 6, 6); + int res = MifareChkBlockKey(uid, &cuid, &cascade_levels, ui64Key, blockNo, keyType, auth_timeout, 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. + } + + // successful authentication + return i + 1; + } + + if (BUTTON_PRESS()) { + return -2; + } + + return 0; +} + + +// multisector multikey check +int MifareMultisectorChk(uint8_t *keys, uint8_t keyCount, uint8_t SectorCount, uint8_t keyType, uint32_t *auth_timeout, 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, auth_timeout, 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 1; +} + +