proxmark3/client/cmdhfepa.c
iceman1001 3fe4ff4f03 CHG: generic code clean up. Removal of commented code.
CHG: USB_CMD_DATA_SIZE is now used as maxsize for transfer of data between client and pm3device
CHG: suggested a fix for the underscore problem in ioclass\fileutils.c
ADD:  tnp3xx support
ADD:  nxp tag idents.
ADD:  identifiction of chinese backdoor commands to hf 14a reader.
2015-01-05 15:51:27 +01:00

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2.4 KiB
C

//-----------------------------------------------------------------------------
// Copyright (C) 2012 Frederik Möllers
//
// 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.
//-----------------------------------------------------------------------------
// Commands related to the German electronic Identification Card
//-----------------------------------------------------------------------------
#include "util.h"
//#include "proxusb.h"
#include "proxmark3.h"
#include "ui.h"
#include "cmdparser.h"
#include "../include/common.h"
#include "cmdmain.h"
#include "sleep.h"
#include "cmdhfepa.h"
static int CmdHelp(const char *Cmd);
// Perform (part of) the PACE protocol
int CmdHFEPACollectPACENonces(const char *Cmd)
{
// requested nonce size
unsigned int m = 0;
// requested number of Nonces
unsigned int n = 0;
// delay between requests
unsigned int d = 0;
sscanf(Cmd, "%u %u %u", &m, &n, &d);
// values are expected to be > 0
m = m > 0 ? m : 1;
n = n > 0 ? n : 1;
PrintAndLog("Collecting %u %"hhu"-byte nonces", n, m);
PrintAndLog("Start: %u", time(NULL));
// repeat n times
for (unsigned int i = 0; i < n; i++) {
// execute PACE
UsbCommand c = {CMD_EPA_PACE_COLLECT_NONCE, {(int)m, 0, 0}};
SendCommand(&c);
UsbCommand resp;
WaitForResponse(CMD_ACK,&resp);
// check if command failed
if (resp.arg[0] != 0) {
PrintAndLog("Error in step %d, Return code: %d",resp.arg[0],(int)resp.arg[1]);
} else {
size_t nonce_length = resp.arg[1];
char *nonce = (char *) malloc(2 * nonce_length + 1);
for(int j = 0; j < nonce_length; j++) {
sprintf(nonce + (2 * j), "%02X", resp.d.asBytes[j]);
}
// print nonce
PrintAndLog("Length: %d, Nonce: %s", nonce_length, nonce);
}
if (i < n - 1) {
sleep(d);
}
}
PrintAndLog("End: %u", time(NULL));
return 1;
}
// UI-related stuff
static const command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
{"cnonces", CmdHFEPACollectPACENonces, 0,
"<m> <n> <d> Acquire n>0 encrypted PACE nonces of size m>0 with d sec pauses"},
{NULL, NULL, 0, NULL}
};
int CmdHelp(const char *Cmd)
{
CmdsHelp(CommandTable);
return 0;
}
int CmdHFEPA(const char *Cmd)
{
// flush
WaitForResponseTimeout(CMD_ACK,NULL,100);
// parse
CmdsParse(CommandTable, Cmd);
return 0;
}