| | 1 | //----------------------------------------------------------------------------- |
| | 2 | // Copyright (C) 2012 Frederik Möllers |
| | 3 | // |
| | 4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, |
| | 5 | // at your option, any later version. See the LICENSE.txt file for the text of |
| | 6 | // the license. |
| | 7 | //----------------------------------------------------------------------------- |
| | 8 | // Commands related to the German electronic Identification Card |
| | 9 | //----------------------------------------------------------------------------- |
| | 10 | |
| | 11 | #include "util.h" |
| | 12 | #include "proxusb.h" |
| | 13 | #include "proxmark3.h" |
| | 14 | #include "ui.h" |
| | 15 | #include "cmdparser.h" |
| | 16 | #include "common.h" |
| | 17 | #include "cmdmain.h" |
| | 18 | #include "sleep.h" |
| | 19 | |
| | 20 | #include "cmdhfepa.h" |
| | 21 | |
| | 22 | static int CmdHelp(const char *Cmd); |
| | 23 | |
| | 24 | // Perform (part of) the PACE protocol |
| | 25 | int CmdHFEPACollectPACENonces(const char *Cmd) |
| | 26 | { |
| | 27 | // requested nonce size |
| | 28 | uint8_t m = 0; |
| | 29 | // requested number of Nonces |
| | 30 | unsigned int n = 0; |
| | 31 | // delay between requests |
| | 32 | unsigned int d = 0; |
| | 33 | |
| | 34 | sscanf(Cmd, "%hhu %u %u", &m, &n, &d); |
| | 35 | |
| | 36 | // values are expected to be > 0 |
| | 37 | m = m > 0 ? m : 1; |
| | 38 | n = n > 0 ? n : 1; |
| | 39 | |
| | 40 | PrintAndLog("Collecting %u %hhu-byte nonces", n, m); |
| | 41 | PrintAndLog("Start: %u", time(NULL)); |
| | 42 | // repeat n times |
| | 43 | for (unsigned int i = 0; i < n; i++) { |
| | 44 | // execute PACE |
| | 45 | UsbCommand c = {CMD_EPA_PACE_COLLECT_NONCE, {(int)m, 0, 0}}; |
| | 46 | SendCommand(&c); |
| | 47 | UsbCommand resp; |
| | 48 | |
| | 49 | WaitForResponse(CMD_ACK,&resp); |
| | 50 | |
| | 51 | // check if command failed |
| | 52 | if (resp.arg[0] != 0) { |
| | 53 | PrintAndLog("Error in step %d, Return code: %d",resp.arg[0],(int)resp.arg[1]); |
| | 54 | } else { |
| | 55 | size_t nonce_length = resp.arg[1]; |
| | 56 | char *nonce = (char *) malloc(2 * nonce_length + 1); |
| | 57 | for(int j = 0; j < nonce_length; j++) { |
| | 58 | snprintf(nonce + (2 * j), 3, "%02X", resp.d.asBytes[j]); |
| | 59 | } |
| | 60 | // print nonce |
| | 61 | PrintAndLog("Length: %d, Nonce: %s",resp.arg[1], nonce); |
| | 62 | } |
| | 63 | if (i < n - 1) { |
| | 64 | sleep(d); |
| | 65 | } |
| | 66 | } |
| | 67 | PrintAndLog("End: %u", time(NULL)); |
| | 68 | |
| | 69 | return 1; |
| | 70 | } |
| | 71 | |
| | 72 | // UI-related stuff |
| | 73 | |
| | 74 | static const command_t CommandTable[] = |
| | 75 | { |
| | 76 | {"help", CmdHelp, 1, "This help"}, |
| | 77 | {"cnonces", CmdHFEPACollectPACENonces, 0, |
| | 78 | "<m> <n> <d> Acquire n>0 encrypted PACE nonces of size m>0 with d sec pauses"}, |
| | 79 | {NULL, NULL, 0, NULL} |
| | 80 | }; |
| | 81 | |
| | 82 | int CmdHelp(const char *Cmd) |
| | 83 | { |
| | 84 | CmdsHelp(CommandTable); |
| | 85 | return 0; |
| | 86 | } |
| | 87 | |
| | 88 | int CmdHFEPA(const char *Cmd) |
| | 89 | { |
| | 90 | // flush |
| | 91 | WaitForResponseTimeout(CMD_ACK,NULL,100); |
| | 92 | |
| | 93 | // parse |
| | 94 | CmdsParse(CommandTable, Cmd); |
| | 95 | return 0; |
| | 96 | } |
projects / proxmark3-svn / blame_incremental