From: Oleg Moiseenko Date: Wed, 10 Oct 2018 20:34:04 +0000 (+0300) Subject: auth 14443-4 (#692) X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/commitdiff_plain/7dadcc959fb7009b6e8bbde4a644aa2f7f1b7a98 auth 14443-4 (#692) * AES authentication --- diff --git a/client/cmdhf14a.c b/client/cmdhf14a.c index 94eb8ff3..a5de2e2a 100644 --- a/client/cmdhf14a.c +++ b/client/cmdhf14a.c @@ -648,6 +648,95 @@ void DropField() { SendCommand(&c); } +int ExchangeRAW14a(uint8_t *datain, int datainlen, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen) { + uint16_t cmdc = 0; + *dataoutlen = 0; + + if (activateField) { + UsbCommand resp; + + // Anticollision + SELECT card + UsbCommand ca = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT | ISO14A_CLEAR_TRACE, 0, 0}}; + SendCommand(&ca); + if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)) { + PrintAndLog("14aRAW ERROR: Proxmark connection timeout."); + return 1; + } + + // check result + if (resp.arg[0] == 0) { + PrintAndLog("14aRAW ERROR: No card in field."); + return 1; + } + + if (resp.arg[0] != 1 && resp.arg[0] != 2) { + PrintAndLog("14aRAW ERROR: card not in iso14443-4. res=%d.", resp.arg[0]); + return 1; + } + + if (resp.arg[0] == 2) { // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS, 3: proprietary Anticollision + // get ATS + UsbCommand cr = {CMD_READER_ISO_14443a, {ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT, 2, 0}}; + uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0 + memcpy(cr.d.asBytes, rats, 2); + SendCommand(&cr); + if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)) { + PrintAndLog("14aRAW ERROR: Proxmark connection timeout."); + return 1; + } + + if (resp.arg[0] <= 0) { // ats_len + PrintAndLog("14aRAW ERROR: Can't get ATS."); + return 1; + } + } + } + + if (leaveSignalON) + cmdc |= ISO14A_NO_DISCONNECT; + + UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_RAW | ISO14A_APPEND_CRC | cmdc, (datainlen & 0xFFFF), 0}}; + memcpy(c.d.asBytes, datain, datainlen); + SendCommand(&c); + + uint8_t *recv; + UsbCommand resp; + + if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) { + recv = resp.d.asBytes; + int iLen = resp.arg[0]; + + *dataoutlen = iLen - 2; + if (*dataoutlen < 0) + *dataoutlen = 0; + + if (maxdataoutlen && *dataoutlen > maxdataoutlen) { + PrintAndLog("14aRAW ERROR: Buffer too small(%d). Needs %d bytes", *dataoutlen, maxdataoutlen); + return 2; + } + + memcpy(dataout, recv, *dataoutlen); + + if(!iLen) { + PrintAndLog("14aRAW ERROR: No card response."); + return 1; + } + + // CRC Check + if (iLen == -1) { + PrintAndLog("14aRAW ERROR: ISO 14443A CRC error."); + return 3; + } + + + } else { + PrintAndLog("14aRAW ERROR: Reply timeout."); + return 4; + } + + return 0; +} + int ExchangeAPDU14a(uint8_t *datain, int datainlen, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen) { uint16_t cmdc = 0; diff --git a/client/cmdhf14a.h b/client/cmdhf14a.h index 71007f95..bbfd9b29 100644 --- a/client/cmdhf14a.h +++ b/client/cmdhf14a.h @@ -25,6 +25,7 @@ int CmdHF14ASnoop(const char *Cmd); char* getTagInfo(uint8_t uid); extern void DropField(); +extern int ExchangeRAW14a(uint8_t *datain, int datainlen, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen); extern int ExchangeAPDU14a(uint8_t *datain, int datainlen, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen); #endif diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c index e2a4ba1e..028bbf7a 100644 --- a/client/cmdhfmf.c +++ b/client/cmdhfmf.c @@ -27,6 +27,9 @@ #include "mifare.h" #include "mfkey.h" #include "hardnested/hardnested_bf_core.h" +#include "cliparser/cliparser.h" +#include "cmdhf14a.h" +#include #define NESTED_SECTOR_RETRY 10 // how often we try mfested() until we give up @@ -2634,6 +2637,149 @@ int CmdDecryptTraceCmds(const char *Cmd){ return tryDecryptWord(param_get32ex(Cmd,0,0,16),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16),data,len/2); } +int aes_encode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length){ + uint8_t iiv[16] = {0}; + if (iv) + memcpy(iiv, iv, 16); + + aes_context aes; + aes_init(&aes); + if (aes_setkey_enc(&aes, key, 128)) + return 1; + if (aes_crypt_cbc(&aes, AES_ENCRYPT, length, iiv, input, output)) + return 2; + aes_free(&aes); + + return 0; +} + +int aes_decode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length){ + uint8_t iiv[16] = {0}; + if (iv) + memcpy(iiv, iv, 16); + + aes_context aes; + aes_init(&aes); + if (aes_setkey_dec(&aes, key, 128)) + return 1; + if (aes_crypt_cbc(&aes, AES_DECRYPT, length, iiv, input, output)) + return 2; + aes_free(&aes); + + return 0; +} + +int CmdHF14AMfAuth4(const char *cmd) { + uint8_t keyn[20] = {0}; + int keynlen = 0; + uint8_t key[16] = {0}; + int keylen = 0; + uint8_t data[257] = {0}; + int datalen = 0; + + uint8_t Rnd1[17] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00}; + uint8_t Rnd2[17] = {0}; + + + CLIParserInit("hf mf auth4", + "Executes AES authentication command in ISO14443-4", + "Usage:\n\thf mf auth4 4000 000102030405060708090a0b0c0d0e0f -> executes authentication\n" + "\thf mf auth4 9003 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF -> executes authentication\n"); + + void* argtable[] = { + arg_param_begin, + arg_str1(NULL, NULL, "", NULL), + arg_str1(NULL, NULL, "", NULL), + arg_param_end + }; + CLIExecWithReturn(cmd, argtable, true); + + CLIGetStrWithReturn(1, keyn, &keynlen); + CLIGetStrWithReturn(2, key, &keylen); + CLIParserFree(); + + if (keynlen != 2) { + PrintAndLog("ERROR: must be 2 bytes long instead of: %d", keynlen); + return 1; + } + + if (keylen != 16) { + PrintAndLog("ERROR: must be 16 bytes long instead of: %d", keylen); + return 1; + } + + uint8_t cmd1[] = {0x0a, 0x00, 0x70, keyn[1], keyn[0], 0x00}; + int res = ExchangeRAW14a(cmd1, sizeof(cmd1), true, true, data, sizeof(data), &datalen); + if (res) { + PrintAndLog("ERROR exchande raw error: %d", res); + return 2; + } + + PrintAndLog("phase2: %s", sprint_hex(cmd2, 35)); + + res = ExchangeRAW14a(cmd2, sizeof(cmd2), false, false, data, sizeof(data), &datalen); + if (res) { + PrintAndLog("ERROR exchande raw error: %d", res); + DropField(); + return 4; + } + + PrintAndLog("