git.zerfleddert.de Git - proxmark3-svn/blob - client/emv/test/sda_test.c

   1 /*
   2  * emv-tools - a set of tools to work with EMV family of smart cards
   3  * Copyright (C) 2012, 2015 Dmitry Eremin-Solenikov
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  */
  15
  16 #ifdef HAVE_CONFIG_H
  17 #include <config.h>
  18 #endif
  19
  20 #include "../emv_pk.h"
  21 #include "../crypto.h"
  22 #include "../dump.h"
  23 #include "../tlv.h"
  24 #include "../emv_pki.h"
  25
  26 #include <stdio.h>
  27 #include <string.h>
  28 #include <stdlib.h>
  29
  30 struct emv_pk vsdc_01 = {
  31         .rid = { 0xa0, 0x00, 0x00, 0x00, 0x03, },
  32         .index = 1,
  33         .hash_algo = HASH_SHA_1,
  34         .pk_algo = PK_RSA,
  35         .hash = {
  36                 0xd3, 0x4a, 0x6a, 0x77,
  37                 0x60, 0x11, 0xc7, 0xe7,
  38                 0xce, 0x3a, 0xec, 0x5f,
  39                 0x03, 0xad, 0x2f, 0x8c,
  40                 0xfc, 0x55, 0x03, 0xcc, },
  41         .exp = { 0x03, },
  42         .elen = 1,
  43         .mlen = 1024 / 8,
  44         .modulus = (unsigned char[]){
  45                 0xc6, 0x96, 0x03, 0x42, 0x13, 0xd7, 0xd8, 0x54, 0x69, 0x84, 0x57, 0x9d, 0x1d, 0x0f, 0x0e, 0xa5,
  46                 0x19, 0xcf, 0xf8, 0xde, 0xff, 0xc4, 0x29, 0x35, 0x4c, 0xf3, 0xa8, 0x71, 0xa6, 0xf7, 0x18, 0x3f,
  47                 0x12, 0x28, 0xda, 0x5c, 0x74, 0x70, 0xc0, 0x55, 0x38, 0x71, 0x00, 0xcb, 0x93, 0x5a, 0x71, 0x2c,
  48                 0x4e, 0x28, 0x64, 0xdf, 0x5d, 0x64, 0xba, 0x93, 0xfe, 0x7e, 0x63, 0xe7, 0x1f, 0x25, 0xb1, 0xe5,
  49                 0xf5, 0x29, 0x85, 0x75, 0xeb, 0xe1, 0xc6, 0x3a, 0xa6, 0x17, 0x70, 0x69, 0x17, 0x91, 0x1d, 0xc2,
  50                 0xa7, 0x5a, 0xc2, 0x8b, 0x25, 0x1c, 0x7e, 0xf4, 0x0f, 0x23, 0x65, 0x91, 0x24, 0x90, 0xb9, 0x39,
  51                 0xbc, 0xa2, 0x12, 0x4a, 0x30, 0xa2, 0x8f, 0x54, 0x40, 0x2c, 0x34, 0xae, 0xca, 0x33, 0x1a, 0xb6,
  52                 0x7e, 0x1e, 0x79, 0xb2, 0x85, 0xdd, 0x57, 0x71, 0xb5, 0xd9, 0xff, 0x79, 0xea, 0x63, 0x0b, 0x75,
  53         },
  54 };
  55
  56 const unsigned char issuer_cert[] = {
  57                 0x3c, 0x5f, 0xea, 0xd4, 0xdd, 0x7b, 0xca, 0x44, 0xf9, 0x3e, 0x90, 0xc4, 0x4f, 0x76, 0xed, 0xe5,
  58                 0x4a, 0x32, 0x88, 0xec, 0xdc, 0x78, 0x46, 0x9f, 0xcb, 0x12, 0x25, 0xc0, 0x3b, 0x2c, 0x04, 0xf2,
  59                 0xc2, 0xf4, 0x12, 0x28, 0x1a, 0x08, 0x22, 0xdf, 0x14, 0x64, 0x92, 0x30, 0x98, 0x9f, 0xb1, 0x49,
  60                 0x40, 0x70, 0xda, 0xf8, 0xc9, 0x53, 0x4a, 0x78, 0x81, 0x96, 0x01, 0x48, 0x61, 0x6a, 0xce, 0x58,
  61                 0x17, 0x88, 0x12, 0x0d, 0x35, 0x06, 0xac, 0xe4, 0xce, 0xe5, 0x64, 0xfb, 0x27, 0xee, 0x53, 0x34,
  62                 0x1c, 0x22, 0xf0, 0xb4, 0x5b, 0x31, 0x87, 0x3d, 0x05, 0xde, 0x54, 0x5e, 0xfe, 0x33, 0xbc, 0xd2,
  63                 0x9b, 0x21, 0x85, 0xd0, 0x35, 0xa8, 0x06, 0xad, 0x08, 0xc6, 0x97, 0x6f, 0x35, 0x05, 0xa1, 0x99,
  64                 0x99, 0x93, 0x0c, 0xa8, 0xa0, 0x3e, 0xfa, 0x32, 0x1c, 0x48, 0x60, 0x61, 0xf7, 0xdc, 0xec, 0x9f,
  65 };
  66
  67 const unsigned char issuer_rem[] = {
  68                 0x1e, 0xbc, 0xa3, 0x0f, 0x00, 0xce, 0x59, 0x62, 0xa8, 0xc6, 0xe1, 0x30, 0x54, 0x4b, 0x82, 0x89,
  69                 0x1b, 0x23, 0x6c, 0x65, 0xde, 0x29, 0x31, 0x7f, 0x36, 0x47, 0x35, 0xde, 0xe6, 0x3f, 0x65, 0x98,
  70                 0x97, 0x58, 0x35, 0xd5
  71 };
  72
  73 const unsigned char issuer_exp[] = {
  74                 0x03,
  75 };
  76
  77 const unsigned char ssad_cr[] = {
  78                 0x99, 0xa5, 0x58, 0xb6, 0x2b, 0x67, 0x4a, 0xa5, 0xe7, 0xd2, 0xa5, 0x7e, 0x5e, 0xf6, 0xa6, 0xf2,
  79                 0x25, 0x8e, 0x5d, 0xa0, 0x52, 0xd0, 0x5b, 0x54, 0xe5, 0xc1, 0x15, 0xff, 0x1c, 0xec, 0xf9, 0x4a,
  80                 0xa2, 0xdf, 0x8f, 0x39, 0xa0, 0x1d, 0x71, 0xc6, 0x19, 0xeb, 0x81, 0x9d, 0xa5, 0x2e, 0xf3, 0x81,
  81                 0xe8, 0x49, 0x79, 0x58, 0x6a, 0xea, 0x78, 0x55, 0xff, 0xbe, 0xf4, 0x0a, 0xa3, 0xa7, 0x1c, 0xd3,
  82                 0xb0, 0x4c, 0xfd, 0xf2, 0x70, 0xae, 0xc8, 0x15, 0x8a, 0x27, 0x97, 0xf2, 0x4f, 0xd6, 0x13, 0xb7,
  83                 0x48, 0x13, 0x46, 0x61, 0x13, 0x5c, 0xd2, 0x90, 0xe4, 0x5b, 0x04, 0xa8, 0xe0, 0xcc, 0xc7, 0x11,
  84                 0xae, 0x04, 0x2f, 0x15, 0x9e, 0x73, 0xc8, 0x9c, 0x2a, 0x7e, 0x65, 0xa4, 0xc2, 0xfd, 0x1d, 0x61,
  85                 0x06, 0x02, 0x4a, 0xa2, 0x71, 0x30, 0xb0, 0xec, 0xec, 0x02, 0x38, 0xf9, 0x16, 0x59, 0xde, 0x96,
  86 };
  87
  88 const unsigned char ssd1[] = {
  89         0x5f, 0x24, 0x03, 0x08, 0x12, 0x31, 0x5a, 0x08, 0x42, 0x76, 0x55, 0x00, 0x13, 0x23, 0x45, 0x99, 0x5f, 0x34, 0x01, 0x01, 0x9f, 0x07, 0x02, 0xff, 0x00, 0x9f, 0x0d, 0x05, 0xd0, 0x40, 0xac, 0xa8, 0x00, 0x9f, 0x0e, 0x05, 0x00, 0x10, 0x00, 0x00, 0x00, 0x9f, 0x0f, 0x05, 0xd0, 0x68, 0xbc, 0xf8, 0x00,
  90         0x5c, 0x00,
  91 };
  92 static const struct tlv ssd1_tlv = {
  93         .len = sizeof(ssd1),
  94         .value = ssd1,
  95 };
  96
  97 const unsigned char pan[] = {
  98         0x42, 0x76, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00,
  99 };
 100
 101 static int sda_test_raw(bool verbose)
 102 {
 103         const struct emv_pk *pk = &vsdc_01;
 104
 105         struct crypto_pk *kcp = crypto_pk_open(PK_RSA,
 106                         pk->modulus, pk->mlen,
 107                         pk->exp, pk->elen);
 108         if (!kcp)
 109                 return 1;
 110
 111         unsigned char *ipk_data;
 112         size_t ipk_data_len;
 113         ipk_data = crypto_pk_encrypt(kcp, issuer_cert, sizeof(issuer_cert), &ipk_data_len);
 114         crypto_pk_close(kcp);
 115
 116         if (!ipk_data)
 117                 return 1;
 118
 119         if (verbose) {
 120                 printf("issuer cert:\n");
 121                 dump_buffer(ipk_data, ipk_data_len, stdout, 0);
 122         }
 123
 124         size_t ipk_pk_len = ipk_data[13];
 125         unsigned char *ipk_pk = malloc(ipk_pk_len);
 126         memcpy(ipk_pk, ipk_data + 15, ipk_data_len - 36);
 127         memcpy(ipk_pk + ipk_data_len - 36, issuer_rem, sizeof(issuer_rem));
 128
 129         struct crypto_hash *ch;
 130         ch = crypto_hash_open(HASH_SHA_1);
 131         if (!ch) {
 132                 free(ipk_pk);
 133                 free(ipk_data);
 134                 return 1;
 135         }
 136
 137         crypto_hash_write(ch, ipk_data + 1, 14);
 138         crypto_hash_write(ch, ipk_pk, ipk_pk_len);
 139         crypto_hash_write(ch, issuer_exp, sizeof(issuer_exp));
 140
 141         unsigned char *h = crypto_hash_read(ch);
 142         if (!h) {
 143                 crypto_hash_close(ch);
 144                 free(ipk_pk);
 145                 free(ipk_data);
 146                 return 1;
 147         }
 148
 149         if (verbose) {
 150                 printf("crypto hash:\n");
 151                 dump_buffer(h, 20, stdout, 0);
 152         }
 153
 154         if (memcmp(ipk_data + ipk_data_len - 21, h, 20)) {
 155                 crypto_hash_close(ch);
 156                 free(ipk_pk);
 157                 free(ipk_data);
 158                 return 1;
 159         }
 160
 161         crypto_hash_close(ch);
 162         free(ipk_data);
 163
 164         struct crypto_pk *ikcp = crypto_pk_open(PK_RSA, ipk_pk, (int) ipk_pk_len,
 165                         issuer_exp, (int) sizeof(issuer_exp));
 166         free(ipk_pk);
 167         if (!ikcp)
 168                 return 1;
 169
 170         size_t ssad_len;
 171         unsigned char *ssad = crypto_pk_encrypt(ikcp, ssad_cr, sizeof(ssad_cr), &ssad_len);
 172         crypto_pk_close(ikcp);
 173         if (!ssad)
 174                 return 1;
 175
 176         if (verbose) {
 177                 printf("ssad:\n");
 178                 dump_buffer(ssad, ssad_len, stdout, 0);
 179         }
 180
 181         ch = crypto_hash_open(HASH_SHA_1);
 182         if (!ch) {
 183                 free(ssad);
 184                 return 1;
 185         }
 186
 187         crypto_hash_write(ch, ssad + 1, ssad_len - 22);
 188         crypto_hash_write(ch, ssd1, sizeof(ssd1));
 189
 190         unsigned char *h2 = crypto_hash_read(ch);
 191         if (!h2) {
 192                 crypto_hash_close(ch);
 193                 free(ssad);
 194                 return 1;
 195         }
 196
 197         if (verbose) {
 198                 printf("crypto hash2:\n");
 199                 dump_buffer(h2, 20, stdout, 0);
 200         }
 201
 202         crypto_hash_close(ch);
 203
 204         free(ssad);
 205
 206         return 0;
 207 }
 208
 209 static int sda_test_pk(bool verbose)
 210 {
 211         const struct emv_pk *pk = &vsdc_01;
 212         struct tlvdb *db;
 213
 214         db = tlvdb_external(0x90, sizeof(issuer_cert), issuer_cert);
 215         tlvdb_add(db, tlvdb_external(0x9f32, sizeof(issuer_exp), issuer_exp));
 216         tlvdb_add(db, tlvdb_external(0x92, sizeof(issuer_rem), issuer_rem));
 217         tlvdb_add(db, tlvdb_external(0x5a, sizeof(pan), pan));
 218
 219         struct emv_pk *ipk = emv_pki_recover_issuer_cert(pk, db);
 220         if (!ipk) {
 221                 fprintf(stderr, "Could not recover Issuer certificate!\n");
 222                 tlvdb_free(db);
 223                 return 2;
 224         }
 225
 226         tlvdb_add(db, tlvdb_external(0x93, sizeof(ssad_cr), ssad_cr));
 227
 228         struct tlvdb *dacdb = emv_pki_recover_dac(ipk, db, &ssd1_tlv);
 229         if (!dacdb) {
 230                 fprintf(stderr, "Could not recover DAC!\n");
 231                 emv_pk_free(ipk);
 232                 tlvdb_free(db);
 233                 return 2;
 234         }
 235
 236         const struct tlv *dac = tlvdb_get(dacdb, 0x9f45, NULL);
 237         if (!dac) {
 238                 fprintf(stderr, "DAC not found!\n");
 239                 tlvdb_free(dacdb);
 240                 emv_pk_free(ipk);
 241                 tlvdb_free(db);
 242                 return 2;
 243         }
 244
 245         if (verbose) {
 246                 printf("dac:\n");
 247                 dump_buffer(dac->value, dac->len, stdout, 0);
 248         }
 249
 250         tlvdb_free(dacdb);
 251         emv_pk_free(ipk);
 252         tlvdb_free(db);
 253
 254         return 0;
 255 }
 256
 257 int exec_sda_test(bool verbose)
 258 {
 259         int ret;
 260         fprintf(stdout, "\n");
 261
 262         ret = sda_test_raw(verbose);
 263         if (ret) {
 264                 fprintf(stderr, "SDA raw test: failed\n");
 265                 return ret;
 266         }
 267         fprintf(stdout, "SDA raw test: passed\n");
 268
 269         ret = sda_test_pk(verbose);
 270         if (ret) {
 271                 fprintf(stderr, "SDA test pk: failed\n");
 272                 return ret;
 273         }
 274         fprintf(stdout, "SDA test pk: passed\n");
 275
 276         return 0;
 277 }