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elite_crack

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This commit is contained in:
merlokk 2018-11-14 11:41:03 +02:00
parent 82b6a2cd5b
commit 500645badf
1 changed files with 12 additions and 12 deletions
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24
client/loclass/elite_crack.c
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@ -45,7 +45,7 @@
#include "ikeys.h"
#include "elite_crack.h"
#include "fileutils.h"
#include "des.h"
#include "mbedtls/des.h"
#include "util_posix.h"
/**
@ -172,21 +172,21 @@ void rk(uint8_t *key, uint8_t n, uint8_t *outp_key) {
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);
}
/**
@ -431,7 +431,7 @@ int bruteforceItem(dumpdata item, uint16_t keytable[]) {
* @return 0 for ok, 1 for failz
*/
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};
@ -450,8 +450,8 @@ int calculateMasterKey(uint8_t first16bytes[], uint64_t master_key[] ){
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++)
@ -462,8 +462,8 @@ int calculateMasterKey(uint8_t first16bytes[], uint64_t master_key[] ){
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);
PrintAndLogDevice(NORMAL, "\n"); PrintAndLogDevice(SUCCESS, "-- High security custom key (Kcus) --");
printvar("[+] Standard format ", key64_stdformat, 8);
printvar("[+] iClass format ", key64, 8);