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https://github.com/RfidResearchGroup/proxmark3.git
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96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) 2012 Frederik Möllers
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// Commands related to the German electronic Identification Card
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//-----------------------------------------------------------------------------
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#include "util.h"
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#include "proxusb.h"
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#include "proxmark3.h"
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#include "ui.h"
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#include "cmdparser.h"
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#include "common.h"
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#include "cmdmain.h"
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#include "sleep.h"
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#include "cmdhfepa.h"
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static int CmdHelp(const char *Cmd);
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// Perform (part of) the PACE protocol
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int CmdHFEPACollectPACENonces(const char *Cmd)
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{
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// requested nonce size
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uint8_t m = 0;
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// requested number of Nonces
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unsigned int n = 0;
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// delay between requests
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unsigned int d = 0;
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sscanf(Cmd, "%hhu %u %u", &m, &n, &d);
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// values are expected to be > 0
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m = m > 0 ? m : 1;
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n = n > 0 ? n : 1;
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PrintAndLog("Collecting %u %hhu-byte nonces", n, m);
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PrintAndLog("Start: %u", time(NULL));
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// repeat n times
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for (unsigned int i = 0; i < n; i++) {
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// execute PACE
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UsbCommand c = {CMD_EPA_PACE_COLLECT_NONCE, {(int)m, 0, 0}};
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SendCommand(&c);
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UsbCommand resp;
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WaitForResponse(CMD_ACK,&resp);
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// check if command failed
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if (resp.arg[0] != 0) {
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PrintAndLog("Error in step %d, Return code: %d",resp.arg[0],(int)resp.arg[1]);
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} else {
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size_t nonce_length = resp.arg[1];
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char *nonce = (char *) malloc(2 * nonce_length + 1);
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for(int j = 0; j < nonce_length; j++) {
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snprintf(nonce + (2 * j), 3, "%02X", resp.d.asBytes[j]);
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}
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// print nonce
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PrintAndLog("Length: %d, Nonce: %s",resp.arg[1], nonce);
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}
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if (i < n - 1) {
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sleep(d);
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}
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}
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PrintAndLog("End: %u", time(NULL));
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return 1;
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}
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// UI-related stuff
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static const command_t CommandTable[] =
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{
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{"help", CmdHelp, 1, "This help"},
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{"cnonces", CmdHFEPACollectPACENonces, 0,
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"<m> <n> <d> Acquire n>0 encrypted PACE nonces of size m>0 with d sec pauses"},
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{NULL, NULL, 0, NULL}
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};
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int CmdHelp(const char *Cmd)
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{
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CmdsHelp(CommandTable);
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return 0;
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}
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int CmdHFEPA(const char *Cmd)
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{
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// flush
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WaitForResponseTimeout(CMD_ACK,NULL,100);
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// parse
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CmdsParse(CommandTable, Cmd);
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return 0;
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} |