*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
+ * by the Free Software Foundation, or, at your option, any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* along with loclass. If not, see <http://www.gnu.org/licenses/>.
*
*
- *
****************************************************************************/
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <stdio.h>
-#include <time.h>
+#include "util.h"
+#include "util_posix.h"
#include "cipherutils.h"
#include "cipher.h"
#include "ikeys.h"
#include "elite_crack.h"
#include "fileutils.h"
-#include "des.h"
+#include "mbedtls/des.h"
/**
* @brief Permutes a key from standard NIST format to Iclass specific format
return;
}
-static des_context ctx_enc = {DES_ENCRYPT,{0}};
-static des_context ctx_dec = {DES_DECRYPT,{0}};
+static mbedtls_des_context ctx_enc = {0};
+static mbedtls_des_context ctx_dec = {0};
void desdecrypt_iclass(uint8_t *iclass_key, uint8_t *input, uint8_t *output)
{
uint8_t key_std_format[8] = {0};
permutekey_rev(iclass_key, key_std_format);
- des_setkey_dec( &ctx_dec, key_std_format);
- des_crypt_ecb(&ctx_dec,input,output);
+ mbedtls_des_setkey_dec( &ctx_dec, key_std_format);
+ mbedtls_des_crypt_ecb(&ctx_dec,input,output);
}
void desencrypt_iclass(uint8_t *iclass_key, uint8_t *input, uint8_t *output)
{
uint8_t key_std_format[8] = {0};
permutekey_rev(iclass_key, key_std_format);
- des_setkey_enc( &ctx_enc, key_std_format);
- des_crypt_ecb(&ctx_enc,input,output);
+ mbedtls_des_setkey_enc( &ctx_enc, key_std_format);
+ mbedtls_des_crypt_ecb(&ctx_enc,input,output);
}
/**
//Diversify
diversifyKey(item.csn, key_sel_p, div_key);
//Calc mac
- doMAC(item.cc_nr,12, div_key,calculated_MAC);
+ doMAC(item.cc_nr, div_key,calculated_MAC);
if(memcmp(calculated_MAC, item.mac, 4) == 0)
{
*/
int calculateMasterKey(uint8_t first16bytes[], uint64_t master_key[] )
{
- des_context ctx_e = {DES_ENCRYPT,{0}};
+ mbedtls_des_context ctx_e = {0};
uint8_t z_0[8] = {0};
uint8_t y_0[8] = {0};
permutekey_rev(z_0, z_0_rev);
// ~K_cus = DESenc(z[0], y[0])
- des_setkey_enc( &ctx_e, z_0_rev );
- des_crypt_ecb(&ctx_e, y_0, key64_negated);
+ mbedtls_des_setkey_enc( &ctx_e, z_0_rev );
+ mbedtls_des_crypt_ecb(&ctx_e, y_0, key64_negated);
int i;
for(i = 0; i < 8 ; i++)
uint8_t key64_stdformat[8] = {0};
permutekey_rev(key64, key64_stdformat);
- des_setkey_enc( &ctx_e, key64_stdformat );
- des_crypt_ecb(&ctx_e, key64_negated, result);
+ mbedtls_des_setkey_enc( &ctx_e, key64_stdformat );
+ mbedtls_des_crypt_ecb(&ctx_e, key64_negated, result);
prnlog("\nHigh security custom key (Kcus):");
printvar("Std format ", key64_stdformat,8);
printvar("Iclass format", key64,8);
uint8_t i;
int errors = 0;
size_t itemsize = sizeof(dumpdata);
- clock_t t1 = clock();
+ uint64_t t1 = msclock();
dumpdata* attack = (dumpdata* ) malloc(itemsize);
errors += bruteforceItem(*attack, keytable);
}
free(attack);
- clock_t t2 = clock();
- float diff = (((float)t2 - (float)t1) / CLOCKS_PER_SEC );
- prnlog("\nPerformed full crack in %f seconds",diff);
+ t1 = msclock() - t1;
+ float diff = (float)t1 / 1000.0;
+ prnlog("\nPerformed full crack in %f seconds", diff);
// Pick out the first 16 bytes of the keytable.
// The keytable is now in 16-bit ints, where the upper 8 bits
long fsize = ftell(f);
fseek(f, 0, SEEK_SET);
+ if (fsize < 0) {
+ prnlog("Error, when getting fsize");
+ fclose(f);
+ return 1;
+ }
+
uint8_t *dump = malloc(fsize);
size_t bytes_read = fread(dump, 1, fsize, f);
fclose(f);
- if (bytes_read < fsize)
- {
- prnlog("Error, could only read %d bytes (should be %d)",bytes_read, fsize );
- }
- return bruteforceDump(dump,fsize,keytable);
+ if (bytes_read < fsize) {
+ prnlog("Error, could only read %d bytes (should be %d)",bytes_read, fsize );
+ }
+
+ uint8_t res = bruteforceDump(dump,fsize,keytable);
+ free(dump);
+ return res;
}
/**
*