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add: cryptohelper support

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iceman1001 2020-02-27 16:35:17 +01:00
commit 2886a99350
7 changed files with 231 additions and 108 deletions
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common/cardhelper.c Normal file
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//-----------------------------------------------------------------------------
// Iceman, February 2020
//
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
// Support functions for smart card
//-----------------------------------------------------------------------------
#include "cardhelper.h"
#include <string.h>
#include <stdio.h>
#include "cmdparser.h"
#include "cmdsmartcard.h"
#include "ui.h"
#include "util.h"
#define CARD_INS_DECRYPT 0x01
#define CARD_INS_ENCRYPT 0x02
#define CARD_INS_DECODE 0x06
static uint8_t cmd[] = {0x96, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
// look for CryptoHelper
bool IsCryptoHelperPresent(void) {
if (IfPm3Smartcard()) {
int resp_len = 0;
uint8_t version[] = {0x96, 0x69, 0x00, 0x00, 0x00};
uint8_t resp[20] = {0};
ExchangeAPDUSC(true, version, sizeof(version), true, true, resp, sizeof(resp), &resp_len);
if (strstr("CryptoHelper", (char*)resp) == 0) {
PrintAndLogEx(INFO, "Found smart card helper");
return true;
} else {
return false;
}
} else {
return false;
}
}
static bool executeCrypto(uint8_t ins, uint8_t *src, uint8_t *dest) {
int resp_len = 0;
uint8_t dec[11] = {0};
cmd[1] = ins;
memcpy(cmd + 5, src, 8);
ExchangeAPDUSC(true, cmd, sizeof(cmd), false, true, dec, sizeof(dec), &resp_len);
if (resp_len == 10) {
memcpy(dest, dec, 8);
return true;
}
return false;
}
bool Decrypt(uint8_t *src, uint8_t *dest){
return executeCrypto(CARD_INS_DECRYPT, src, dest);
}
bool Encrypt(uint8_t *src, uint8_t *dest){
return executeCrypto(CARD_INS_ENCRYPT, src, dest);
}
void DecodeBlock6(uint8_t *src) {
int resp_len = 0;
uint8_t resp[254] = {0};
uint8_t c[] = {0x96, CARD_INS_DECODE, 0x00, 0x00, 0x09, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
memcpy(c + 6, src, 8);
// first part
ExchangeAPDUSC(true, c, sizeof(c), false, true, resp, sizeof(resp), &resp_len);
PrintAndLogEx(SUCCESS, "%0.*s", resp_len - 11, resp + 9);
// second part
c[5] = 0x02;
ExchangeAPDUSC(true, c, sizeof(c), false, true, resp, sizeof(resp), &resp_len);
PrintAndLogEx(SUCCESS, "%0.*s", resp_len - 11, resp + 9);
}