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annotate simtool/a38.c @ 195:810ea92d9f47

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doc/GrcardSIM2-security-model: grammar fix
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 07 Mar 2021 01:55:29 +0000
parents e17940d7ce35
children
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1 /*
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2 * This module implements the a38 command for exercising
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3 * the SIM's RUN GSM ALGORITHM operation.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <ctype.h>
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include "simresp.h"
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11
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12 cmd_a38(argc, argv, outf)
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13 char **argv;
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14 FILE *outf;
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15 {
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16 u_char cmd[21];
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17 int rc;
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18
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19 /* RUN GSM ALGORITHM command APDU */
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20 cmd[0] = 0xA0;
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21 cmd[1] = 0x88;
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22 cmd[2] = 0;
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23 cmd[3] = 0;
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24 cmd[4] = 16;
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25 rc = decode_hex_data_from_string(argv[1], cmd + 5, 16, 16);
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26 if (rc < 0)
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27 return(rc);
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28 rc = apdu_exchange(cmd, 21);
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29 if (rc < 0)
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30 return(rc);
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31 if (sim_resp_sw != 0x9F0C) {
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32 fprintf(stderr,
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33 "error or unexpected SW response to RUN GSM ALGO: %04X\n",
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34 sim_resp_sw);
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35 return(-1);
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36 }
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37 /* GET RESPONSE follow-up */
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38 cmd[1] = 0xC0;
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39 cmd[4] = 12;
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40 rc = apdu_exchange(cmd, 5);
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41 if (rc < 0)
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42 return(rc);
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43 if (sim_resp_sw != 0x9000) {
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44 fprintf(stderr, "bad SW resp to GET RESPONSE: %04X\n",
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45 sim_resp_sw);
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46 return(-1);
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47 }
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48 if (sim_resp_data_len != 12) {
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49 fprintf(stderr,
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50 "error: GET RESPONSE returned %u bytes, expected 12\n",
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51 sim_resp_data_len);
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52 return(-1);
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53 }
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54 fprintf(outf, "SRES: %02X %02X %02X %02X\n", sim_resp_data[0],
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55 sim_resp_data[1], sim_resp_data[2], sim_resp_data[3]);
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56 fprintf(outf, "Kc: %02X %02X %02X %02X %02X %02X %02X %02X\n",
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57 sim_resp_data[4], sim_resp_data[5], sim_resp_data[6],
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58 sim_resp_data[7], sim_resp_data[8], sim_resp_data[9],
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59 sim_resp_data[10], sim_resp_data[11]);
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60 return(0);
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61 }