mirror of
https://github.com/RfidResearchGroup/proxmark3.git
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108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
//-----------------------------------------------------------------------------
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// Iceman, February 2020
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// Support functions for smart card
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//-----------------------------------------------------------------------------
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#include "cardhelper.h"
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#include <string.h>
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#include <stdio.h>
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#include "cmdparser.h"
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#include "cmdsmartcard.h"
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#include "ui.h"
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#include "util.h"
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#define CARD_INS_DECRYPT 0x01
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#define CARD_INS_ENCRYPT 0x02
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#define CARD_INS_DECODE 0x06
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#define CARD_INS_NUMBLOCKS 0x07
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#define CARD_INS_PINSIZE 0x08
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static uint8_t cmd[] = {0x96, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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// look for CryptoHelper
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bool IsCryptoHelperPresent(bool verbose) {
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if (IfPm3Smartcard()) {
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int resp_len = 0;
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uint8_t version[] = {0x96, 0x69, 0x00, 0x00, 0x00};
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uint8_t resp[20] = {0};
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ExchangeAPDUSC(true, version, sizeof(version), true, true, resp, sizeof(resp), &resp_len);
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if (strstr("CryptoHelper", (char *)resp) == 0) {
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if (verbose) {
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PrintAndLogEx(INFO, "Found smart card helper");
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}
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return true;
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}
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}
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return false;
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}
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static bool executeCrypto(uint8_t ins, uint8_t *src, uint8_t *dest) {
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int resp_len = 0;
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uint8_t dec[11] = {0};
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cmd[1] = ins;
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memcpy(cmd + 5, src, 8);
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ExchangeAPDUSC(true, cmd, sizeof(cmd), false, true, dec, sizeof(dec), &resp_len);
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if (resp_len == 10) {
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memcpy(dest, dec, 8);
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return true;
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}
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return false;
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}
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bool Decrypt(uint8_t *src, uint8_t *dest) {
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return executeCrypto(CARD_INS_DECRYPT, src, dest);
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}
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bool Encrypt(uint8_t *src, uint8_t *dest) {
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return executeCrypto(CARD_INS_ENCRYPT, src, dest);
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}
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// Call with block6
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void DecodeBlock6(uint8_t *src) {
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int resp_len = 0;
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uint8_t resp[254] = {0};
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uint8_t c[] = {0x96, CARD_INS_DECODE, 0x00, 0x00, 0x09, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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memcpy(c + 6, src, 8);
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// first part
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ExchangeAPDUSC(true, c, sizeof(c), false, true, resp, sizeof(resp), &resp_len);
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PrintAndLogEx(SUCCESS, "%.*s", resp_len - 11, resp + 9);
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// second part
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c[5] = 0x02;
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ExchangeAPDUSC(true, c, sizeof(c), false, true, resp, sizeof(resp), &resp_len);
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PrintAndLogEx(SUCCESS, "%.*s", resp_len - 11, resp + 9);
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}
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// Call with block6
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uint8_t GetNumberBlocksForUserId(uint8_t *src) {
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int resp_len = 0;
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uint8_t resp[254] = {0};
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uint8_t c[] = {0x96, CARD_INS_NUMBLOCKS, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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memcpy(c + 5, src, 8);
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ExchangeAPDUSC(true, c, sizeof(c), false, true, resp, sizeof(resp), &resp_len);
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return resp[8];
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}
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// Call with block6
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uint8_t GetPinSize(uint8_t *src) {
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int resp_len = 0;
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uint8_t resp[254] = {0};
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uint8_t c[] = {0x96, CARD_INS_PINSIZE, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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memcpy(c + 5, src, 8);
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ExchangeAPDUSC(true, c, sizeof(c), false, true, resp, sizeof(resp), &resp_len);
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if (resp[resp_len - 2] == 0x90 && resp[resp_len - 1] == 0x00) {
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return resp[8];
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}
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return 0;
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}
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