X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/cceabb79e6f1bc8e9c2cab766f6edb3a4200bb74..1dae9811f22b7f2cea340cee6945cb349046129d:/armsrc/mifareutil.c?ds=sidebyside diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c index cc54b740..fdead5ee 100644 --- a/armsrc/mifareutil.c +++ b/armsrc/mifareutil.c @@ -9,15 +9,17 @@ // Work with mifare cards. //----------------------------------------------------------------------------- +#include +#include "mifareutil.h" #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; @@ -49,7 +51,7 @@ void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, u data[i] = crypto1_byte(pcs, 0x00, 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; } @@ -64,53 +66,25 @@ uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) { 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) -{ - 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) +// 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[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_short_mfucauth(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[19]; - int len; - dcmd[0] = cmd; - memcpy(dcmd+1,data,16); - AppendCrc14443a(dcmd, 17); - + 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); - len = ReaderReceive(answer, answer_parity); + int len = ReaderReceive(answer, answer_parity); if(!len) { - if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed. Card timeout."); - len = ReaderReceive(answer,answer_parity); - } - if(len==1) { - if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("NAK - Authentication failed."); - return 1; - } + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("%02X Cmd failed. Card timeout.", cmd); + len = ReaderReceive(answer,answer_parity); + //return 0; + } 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) +// 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; @@ -126,7 +100,7 @@ int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cm 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); @@ -220,7 +194,7 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN 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 @@ -231,7 +205,7 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN { 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 @@ -288,68 +262,141 @@ int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blo } // mifare ultralight commands -int mifare_ul_ev1_auth(uint8_t *key, uint8_t *pack){ +int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){ uint16_t len; - uint8_t receivedAnswer[MAX_FRAME_SIZE]; - uint8_t receivedAnswerPar[MAX_PARITY_SIZE]; - - len = mifare_sendcmd_short_mfucauth(NULL, 0, 0x1B, key, receivedAnswer, receivedAnswerPar, NULL); + 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", receivedAnswer[0], len); - return 1; - } - - if (MF_DBGLEVEL >= MF_DBG_EXTENDED) { - Dbprintf("Auth Resp: %02x%02x%02x%02x", - receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3]); + if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x %u", resp[0], len); + return 0; } - memcpy(pack, receivedAnswer, 4); - 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_auth1(uint8_t *blockData){ +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 receivedAnswer[MAX_FRAME_SIZE]; - uint8_t receivedAnswerPar[MAX_PARITY_SIZE]; - - len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,receivedAnswerPar ,NULL); + 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", receivedAnswer[0]); - return 1; + 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("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; -} + 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]); -int mifare_ultra_auth2(uint8_t *key, uint8_t *blockData){ + 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]); - uint16_t len; - uint8_t receivedAnswer[MAX_FRAME_SIZE]; - uint8_t receivedAnswerPar[MAX_PARITY_SIZE]; - - len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, key, receivedAnswer, receivedAnswerPar, NULL); + 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", receivedAnswer[0]); - return 1; + 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("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]); + 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]); } - memcpy(blockData, receivedAnswer, 11); - return 0; + return 1; } int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData) @@ -359,6 +406,7 @@ int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData) 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]); @@ -380,8 +428,6 @@ int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData) return 0; } - - int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) { // variables @@ -409,7 +455,7 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl 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); @@ -429,7 +475,8 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl return 0; } -int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData) +/* // 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 @@ -437,7 +484,6 @@ int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData) uint8_t receivedAnswer[MAX_FRAME_SIZE]; uint8_t receivedAnswerPar[MAX_PARITY_SIZE]; - // command MIFARE_CLASSIC_WRITEBLOCK len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL); if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK @@ -460,20 +506,21 @@ int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData) } return 0; } +*/ -int mifare_ultra_special_writeblock(uint8_t blockNo, uint8_t *blockData) +int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData) { uint16_t len; - uint8_t d_block[8] = {0x00}; + 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); + //AppendCrc14443a(d_block, 6); - len = mifare_sendcmd_short_special(NULL, 1, 0xA2, d_block, receivedAnswer, receivedAnswerPar, NULL); + len = mifare_sendcmd(0xA2, d_block, sizeof(d_block), receivedAnswer, receivedAnswerPar, NULL); if (receivedAnswer[0] != 0x0A) { // 0x0a - ACK if (MF_DBGLEVEL >= MF_DBG_ERROR) @@ -664,8 +711,8 @@ 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_MIFARE_FRAME_SIZE]; - uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE]; + 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) {