mirror of
https://github.com/Proxmark/proxmark3.git
synced 2024-11-11 18:17:46 +08:00
b35e04a7c6
* more timing fixes * correctly determine correction bit (taken from iceman's fork) * add checking of Access Conditions for Read command * never allow reading KeyA
907 lines
26 KiB
C
907 lines
26 KiB
C
//-----------------------------------------------------------------------------
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// Merlok, May 2011, 2012
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// Many authors, whom made it possible
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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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// Work with mifare cards.
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//-----------------------------------------------------------------------------
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#include "mifareutil.h"
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#include <string.h>
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#include <stdbool.h>
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#include "proxmark3.h"
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#include "apps.h"
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#include "util.h"
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#include "parity.h"
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#include "iso14443crc.h"
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#include "iso14443a.h"
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#include "crapto1/crapto1.h"
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#include "polarssl/des.h"
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int MF_DBGLEVEL = MF_DBG_ALL;
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// crypto1 helpers
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void mf_crypto1_decryptEx(struct Crypto1State *pcs, uint8_t *data_in, int len, uint8_t *data_out){
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uint8_t bt = 0;
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int i;
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if (len != 1) {
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for (i = 0; i < len; i++)
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data_out[i] = crypto1_byte(pcs, 0x00, 0) ^ data_in[i];
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} else {
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bt = 0;
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for (i = 0; i < 4; i++)
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bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data_in[0], i)) << i;
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data_out[0] = bt;
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}
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return;
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}
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void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){
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mf_crypto1_decryptEx(pcs, data, len, data);
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}
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void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par) {
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uint8_t bt = 0;
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int i;
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par[0] = 0;
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for (i = 0; i < len; i++) {
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bt = data[i];
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data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];
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if((i&0x0007) == 0)
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par[i>>3] = 0;
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par[i>>3] |= (((filter(pcs->odd) ^ oddparity8(bt)) & 0x01)<<(7-(i&0x0007)));
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}
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return;
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}
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uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) {
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uint8_t bt = 0;
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int i;
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for (i = 0; i < 4; i++)
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bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, i)) << i;
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return bt;
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}
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// send X byte basic commands
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int mifare_sendcmd(uint8_t cmd, uint8_t* data, uint8_t data_size, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)
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{
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uint8_t dcmd[data_size+3];
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dcmd[0] = cmd;
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memcpy(dcmd+1,data,data_size);
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AppendCrc14443a(dcmd, data_size+1);
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ReaderTransmit(dcmd, sizeof(dcmd), timing);
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int len = ReaderReceive(answer, answer_parity);
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if(!len) {
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if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("%02X Cmd failed. Card timeout.", cmd);
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len = ReaderReceive(answer,answer_parity);
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//return 0;
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}
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return len;
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}
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// send 2 byte commands
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int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)
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{
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uint8_t dcmd[4], ecmd[4];
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uint16_t pos, res;
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uint8_t par[1]; // 1 Byte parity is enough here
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dcmd[0] = cmd;
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dcmd[1] = data;
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AppendCrc14443a(dcmd, 2);
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memcpy(ecmd, dcmd, sizeof(dcmd));
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if (crypted) {
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par[0] = 0;
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for (pos = 0; pos < 4; pos++)
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{
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ecmd[pos] = crypto1_byte(pcs, 0x00, 0) ^ dcmd[pos];
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par[0] |= (((filter(pcs->odd) ^ oddparity8(dcmd[pos])) & 0x01) << (7-pos));
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}
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ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing);
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} else {
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ReaderTransmit(dcmd, sizeof(dcmd), timing);
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}
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int len = ReaderReceive(answer, par);
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if (answer_parity) *answer_parity = par[0];
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if (crypted == CRYPT_ALL) {
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if (len == 1) {
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res = 0;
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for (pos = 0; pos < 4; pos++)
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res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], pos)) << pos;
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answer[0] = res;
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} else {
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for (pos = 0; pos < len; pos++)
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{
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answer[pos] = crypto1_byte(pcs, 0x00, 0) ^ answer[pos];
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}
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}
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}
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return len;
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}
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// mifare classic commands
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int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested)
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{
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return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL, NULL);
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}
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int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested, uint32_t *ntptr, uint32_t *timing)
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{
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// variables
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int len;
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uint32_t pos;
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uint8_t tmp4[4];
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uint8_t par[1] = {0x00};
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byte_t nr[4];
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uint32_t nt, ntpp; // Supplied tag nonce
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uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
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uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
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uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
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// Transmit MIFARE_CLASSIC_AUTH
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len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer, receivedAnswerPar, timing);
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if (MF_DBGLEVEL >= 4) Dbprintf("rand tag nonce len: %x", len);
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if (len != 4) return 1;
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// "random" reader nonce:
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nr[0] = 0x55;
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nr[1] = 0x41;
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nr[2] = 0x49;
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nr[3] = 0x92;
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// Save the tag nonce (nt)
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nt = bytes_to_num(receivedAnswer, 4);
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// ----------------------------- crypto1 create
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if (isNested)
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crypto1_destroy(pcs);
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// Init cipher with key
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crypto1_create(pcs, ui64Key);
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if (isNested == AUTH_NESTED) {
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// decrypt nt with help of new key
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nt = crypto1_word(pcs, nt ^ uid, 1) ^ nt;
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} else {
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// Load (plain) uid^nt into the cipher
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crypto1_word(pcs, nt ^ uid, 0);
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}
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// some statistic
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if (!ntptr && (MF_DBGLEVEL >= 3))
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Dbprintf("auth uid: %08x nt: %08x", uid, nt);
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// save Nt
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if (ntptr)
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*ntptr = nt;
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// Generate (encrypted) nr+parity by loading it into the cipher (Nr)
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par[0] = 0;
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for (pos = 0; pos < 4; pos++)
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{
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mf_nr_ar[pos] = crypto1_byte(pcs, nr[pos], 0) ^ nr[pos];
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par[0] |= (((filter(pcs->odd) ^ oddparity8(nr[pos])) & 0x01) << (7-pos));
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}
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// Skip 32 bits in pseudo random generator
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nt = prng_successor(nt,32);
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// ar+parity
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for (pos = 4; pos < 8; pos++)
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{
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nt = prng_successor(nt,8);
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mf_nr_ar[pos] = crypto1_byte(pcs,0x00,0) ^ (nt & 0xff);
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par[0] |= (((filter(pcs->odd) ^ oddparity8(nt)) & 0x01) << (7-pos));
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}
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// Transmit reader nonce and reader answer
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ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par, NULL);
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// Receive 4 byte tag answer
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len = ReaderReceive(receivedAnswer, receivedAnswerPar);
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if (!len)
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{
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if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout.");
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return 2;
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}
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memcpy(tmp4, receivedAnswer, 4);
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ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0,0);
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if (ntpp != bytes_to_num(tmp4, 4)) {
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if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Error card response.");
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return 3;
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}
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return 0;
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}
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int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData)
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{
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// variables
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int len;
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uint8_t bt[2];
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uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
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uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
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// command MIFARE_CLASSIC_READBLOCK
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len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);
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if (len == 1) {
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if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
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return 1;
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}
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if (len != 18) {
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if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: card timeout. len: %x", len);
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return 2;
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}
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memcpy(bt, receivedAnswer + 16, 2);
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AppendCrc14443a(receivedAnswer, 16);
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if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {
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if (MF_DBGLEVEL >= 1) Dbprintf("Cmd CRC response error.");
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return 3;
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}
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memcpy(blockData, receivedAnswer, 16);
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return 0;
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}
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// mifare ultralight commands
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int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){
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uint16_t len;
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uint8_t resp[4];
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uint8_t respPar[1];
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uint8_t key[4] = {0x00};
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memcpy(key, keybytes, 4);
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if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
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Dbprintf("EV1 Auth : %02x%02x%02x%02x", key[0], key[1], key[2], key[3]);
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len = mifare_sendcmd(0x1B, key, sizeof(key), resp, respPar, NULL);
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//len = mifare_sendcmd_short_mfuev1auth(NULL, 0, 0x1B, key, resp, respPar, NULL);
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if (len != 4) {
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if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x %u", resp[0], len);
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return 0;
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}
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if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
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Dbprintf("Auth Resp: %02x%02x%02x%02x", resp[0],resp[1],resp[2],resp[3]);
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memcpy(pack, resp, 4);
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return 1;
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}
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int mifare_ultra_auth(uint8_t *keybytes){
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/// 3des2k
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des3_context ctx = { 0x00 };
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uint8_t random_a[8] = {1,1,1,1,1,1,1,1};
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uint8_t random_b[8] = {0x00};
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uint8_t enc_random_b[8] = {0x00};
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uint8_t rnd_ab[16] = {0x00};
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uint8_t IV[8] = {0x00};
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uint8_t key[16] = {0x00};
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memcpy(key, keybytes, 16);
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uint16_t len;
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uint8_t resp[19] = {0x00};
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uint8_t respPar[3] = {0,0,0};
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// REQUEST AUTHENTICATION
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len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, resp, respPar ,NULL);
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if (len != 11) {
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if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);
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return 0;
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}
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// tag nonce.
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memcpy(enc_random_b,resp+1,8);
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// decrypt nonce.
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// tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );
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des3_set2key_dec(&ctx, key);
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des3_crypt_cbc(&ctx // des3_context
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, DES_DECRYPT // int mode
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, sizeof(random_b) // length
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, IV // iv[8]
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, enc_random_b // input
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, random_b // output
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);
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rol(random_b,8);
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memcpy(rnd_ab ,random_a,8);
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memcpy(rnd_ab+8,random_b,8);
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if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
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Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x",
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enc_random_b[0],enc_random_b[1],enc_random_b[2],enc_random_b[3],enc_random_b[4],enc_random_b[5],enc_random_b[6],enc_random_b[7]);
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Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x",
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random_b[0],random_b[1],random_b[2],random_b[3],random_b[4],random_b[5],random_b[6],random_b[7]);
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Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",
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rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);
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Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",
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rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15] );
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}
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// encrypt out, in, length, key, iv
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//tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);
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des3_set2key_enc(&ctx, key);
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des3_crypt_cbc(&ctx // des3_context
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, DES_ENCRYPT // int mode
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, sizeof(rnd_ab) // length
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, enc_random_b // iv[8]
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, rnd_ab // input
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, rnd_ab // output
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);
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//len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, resp, respPar, NULL);
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len = mifare_sendcmd(0xAF, rnd_ab, sizeof(rnd_ab), resp, respPar, NULL);
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if (len != 11) {
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if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);
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return 0;
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}
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uint8_t enc_resp[8] = { 0,0,0,0,0,0,0,0 };
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uint8_t resp_random_a[8] = { 0,0,0,0,0,0,0,0 };
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memcpy(enc_resp, resp+1, 8);
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// decrypt out, in, length, key, iv
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// tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);
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des3_set2key_dec(&ctx, key);
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des3_crypt_cbc(&ctx // des3_context
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, DES_DECRYPT // int mode
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, 8 // length
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, enc_random_b // iv[8]
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, enc_resp // input
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, resp_random_a // output
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);
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if ( memcmp(resp_random_a, random_a, 8) != 0 ) {
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if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("failed authentication");
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return 0;
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}
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if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
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Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",
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rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],
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rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);
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Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",
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rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],
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rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15]);
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Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x",
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random_a[0],random_a[1],random_a[2],random_a[3],
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random_a[4],random_a[5],random_a[6],random_a[7]);
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Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x",
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resp_random_a[0],resp_random_a[1],resp_random_a[2],resp_random_a[3],
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resp_random_a[4],resp_random_a[5],resp_random_a[6],resp_random_a[7]);
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}
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return 1;
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}
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int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData)
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{
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uint16_t len;
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uint8_t bt[2];
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uint8_t receivedAnswer[MAX_FRAME_SIZE];
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uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
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len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);
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if (len == 1) {
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if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
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return 1;
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}
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if (len != 18) {
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if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: card timeout. len: %x", len);
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return 2;
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}
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memcpy(bt, receivedAnswer + 16, 2);
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AppendCrc14443a(receivedAnswer, 16);
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if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {
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if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd CRC response error.");
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return 3;
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}
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memcpy(blockData, receivedAnswer, 14);
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return 0;
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}
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int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData)
|
|
{
|
|
// variables
|
|
uint16_t len, i;
|
|
uint32_t pos;
|
|
uint8_t par[3] = {0}; // enough for 18 Bytes to send
|
|
byte_t res;
|
|
|
|
uint8_t d_block[18], d_block_enc[18];
|
|
uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
|
|
uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
|
|
|
|
// command MIFARE_CLASSIC_WRITEBLOCK
|
|
len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);
|
|
|
|
if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK
|
|
if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
|
|
return 1;
|
|
}
|
|
|
|
memcpy(d_block, blockData, 16);
|
|
AppendCrc14443a(d_block, 16);
|
|
|
|
// crypto
|
|
for (pos = 0; pos < 18; pos++)
|
|
{
|
|
d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos];
|
|
par[pos>>3] |= (((filter(pcs->odd) ^ oddparity8(d_block[pos])) & 0x01) << (7 - (pos&0x0007)));
|
|
}
|
|
|
|
ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par, NULL);
|
|
|
|
// Receive the response
|
|
len = ReaderReceive(receivedAnswer, receivedAnswerPar);
|
|
|
|
res = 0;
|
|
for (i = 0; i < 4; i++)
|
|
res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], i)) << i;
|
|
|
|
if ((len != 1) || (res != 0x0A)) {
|
|
if (MF_DBGLEVEL >= 1) Dbprintf("Cmd send data2 Error: %02x", res);
|
|
return 2;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* // command not needed, but left for future testing
|
|
int mifare_ultra_writeblock_compat(uint8_t blockNo, uint8_t *blockData)
|
|
{
|
|
uint16_t len;
|
|
uint8_t par[3] = {0}; // enough for 18 parity bits
|
|
uint8_t d_block[18] = {0x00};
|
|
uint8_t receivedAnswer[MAX_FRAME_SIZE];
|
|
uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
|
|
|
|
len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);
|
|
|
|
if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK
|
|
if (MF_DBGLEVEL >= MF_DBG_ERROR)
|
|
Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]);
|
|
return 1;
|
|
}
|
|
|
|
memcpy(d_block, blockData, 16);
|
|
AppendCrc14443a(d_block, 16);
|
|
|
|
ReaderTransmitPar(d_block, sizeof(d_block), par, NULL);
|
|
|
|
len = ReaderReceive(receivedAnswer, receivedAnswerPar);
|
|
|
|
if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK
|
|
if (MF_DBGLEVEL >= MF_DBG_ERROR)
|
|
Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len);
|
|
return 2;
|
|
}
|
|
return 0;
|
|
}
|
|
*/
|
|
|
|
int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData)
|
|
{
|
|
uint16_t len;
|
|
uint8_t d_block[5] = {0x00};
|
|
uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
|
|
uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
|
|
|
|
// command MIFARE_CLASSIC_WRITEBLOCK
|
|
d_block[0]= blockNo;
|
|
memcpy(d_block+1,blockData,4);
|
|
//AppendCrc14443a(d_block, 6);
|
|
|
|
len = mifare_sendcmd(0xA2, d_block, sizeof(d_block), receivedAnswer, receivedAnswerPar, NULL);
|
|
|
|
if (receivedAnswer[0] != 0x0A) { // 0x0a - ACK
|
|
if (MF_DBGLEVEL >= MF_DBG_ERROR)
|
|
Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid)
|
|
{
|
|
uint16_t len;
|
|
uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
|
|
uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
|
|
|
|
len = mifare_sendcmd_short(pcs, pcs == NULL ? false:true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);
|
|
if (len != 0) {
|
|
if (MF_DBGLEVEL >= MF_DBG_ERROR)
|
|
Dbprintf("halt error. response len: %x", len);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int mifare_ultra_halt()
|
|
{
|
|
uint16_t len;
|
|
uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
|
|
uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
|
|
|
|
len = mifare_sendcmd_short(NULL, true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);
|
|
if (len != 0) {
|
|
if (MF_DBGLEVEL >= MF_DBG_ERROR)
|
|
Dbprintf("halt error. response len: %x", len);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
// Mifare Memory Structure: up to 32 Sectors with 4 blocks each (1k and 2k cards),
|
|
// plus evtl. 8 sectors with 16 blocks each (4k cards)
|
|
uint8_t NumBlocksPerSector(uint8_t sectorNo)
|
|
{
|
|
if (sectorNo < 32)
|
|
return 4;
|
|
else
|
|
return 16;
|
|
}
|
|
|
|
uint8_t FirstBlockOfSector(uint8_t sectorNo)
|
|
{
|
|
if (sectorNo < 32)
|
|
return sectorNo * 4;
|
|
else
|
|
return 32*4 + (sectorNo - 32) * 16;
|
|
|
|
}
|
|
|
|
uint8_t SectorTrailer(uint8_t blockNo)
|
|
{
|
|
if (blockNo < 32*4) {
|
|
return (blockNo | 0x03);
|
|
} else {
|
|
return (blockNo | 0x0f);
|
|
}
|
|
}
|
|
|
|
bool IsSectorTrailer(uint8_t blockNo)
|
|
{
|
|
return (blockNo == SectorTrailer(blockNo));
|
|
}
|
|
|
|
// work with emulator memory
|
|
void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {
|
|
uint8_t* emCARD = BigBuf_get_EM_addr();
|
|
memcpy(emCARD + blockNum * 16, data, blocksCount * 16);
|
|
}
|
|
|
|
void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {
|
|
uint8_t* emCARD = BigBuf_get_EM_addr();
|
|
memcpy(data, emCARD + blockNum * 16, blocksCount * 16);
|
|
}
|
|
|
|
void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) {
|
|
uint8_t* emCARD = BigBuf_get_EM_addr();
|
|
memcpy(data, emCARD + bytePtr, byteCount);
|
|
}
|
|
|
|
int emlCheckValBl(int blockNum) {
|
|
uint8_t* emCARD = BigBuf_get_EM_addr();
|
|
uint8_t* data = emCARD + blockNum * 16;
|
|
|
|
if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) ||
|
|
(data[1] != (data[5] ^ 0xff)) || (data[1] != data[9]) ||
|
|
(data[2] != (data[6] ^ 0xff)) || (data[2] != data[10]) ||
|
|
(data[3] != (data[7] ^ 0xff)) || (data[3] != data[11]) ||
|
|
(data[12] != (data[13] ^ 0xff)) || (data[12] != data[14]) ||
|
|
(data[12] != (data[15] ^ 0xff))
|
|
)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {
|
|
uint8_t* emCARD = BigBuf_get_EM_addr();
|
|
uint8_t* data = emCARD + blockNum * 16;
|
|
|
|
if (emlCheckValBl(blockNum)) {
|
|
return 1;
|
|
}
|
|
|
|
memcpy(blReg, data, 4);
|
|
*blBlock = data[12];
|
|
return 0;
|
|
}
|
|
|
|
int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {
|
|
uint8_t* emCARD = BigBuf_get_EM_addr();
|
|
uint8_t* data = emCARD + blockNum * 16;
|
|
|
|
memcpy(data + 0, &blReg, 4);
|
|
memcpy(data + 8, &blReg, 4);
|
|
blReg = blReg ^ 0xffffffff;
|
|
memcpy(data + 4, &blReg, 4);
|
|
|
|
data[12] = blBlock;
|
|
data[13] = blBlock ^ 0xff;
|
|
data[14] = blBlock;
|
|
data[15] = blBlock ^ 0xff;
|
|
|
|
return 0;
|
|
}
|
|
|
|
uint64_t emlGetKey(int sectorNum, int keyType) {
|
|
uint8_t key[6];
|
|
uint8_t* emCARD = BigBuf_get_EM_addr();
|
|
|
|
memcpy(key, emCARD + 16 * (FirstBlockOfSector(sectorNum) + NumBlocksPerSector(sectorNum) - 1) + keyType * 10, 6);
|
|
return bytes_to_num(key, 6);
|
|
}
|
|
|
|
void emlClearMem(void) {
|
|
int b;
|
|
|
|
const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
|
|
const uint8_t uid[] = {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};
|
|
uint8_t* emCARD = BigBuf_get_EM_addr();
|
|
|
|
memset(emCARD, 0, CARD_MEMORY_SIZE);
|
|
|
|
// fill sectors trailer data
|
|
for(b = 3; b < 256; b<127?(b+=4):(b+=16)) {
|
|
emlSetMem((uint8_t *)trailer, b , 1);
|
|
}
|
|
|
|
// uid
|
|
emlSetMem((uint8_t *)uid, 0, 1);
|
|
return;
|
|
}
|
|
|
|
|
|
// Mifare desfire commands
|
|
int mifare_sendcmd_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)
|
|
{
|
|
uint8_t dcmd[5] = {0x00};
|
|
dcmd[0] = cmd;
|
|
memcpy(dcmd+1,data,2);
|
|
AppendCrc14443a(dcmd, 3);
|
|
|
|
ReaderTransmit(dcmd, sizeof(dcmd), NULL);
|
|
int len = ReaderReceive(answer, answer_parity);
|
|
if(!len) {
|
|
if (MF_DBGLEVEL >= MF_DBG_ERROR)
|
|
Dbprintf("Authentication failed. Card timeout.");
|
|
return 1;
|
|
}
|
|
return len;
|
|
}
|
|
|
|
int mifare_sendcmd_special2(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer,uint8_t *answer_parity, uint32_t *timing)
|
|
{
|
|
uint8_t dcmd[20] = {0x00};
|
|
dcmd[0] = cmd;
|
|
memcpy(dcmd+1,data,17);
|
|
AppendCrc14443a(dcmd, 18);
|
|
|
|
ReaderTransmit(dcmd, sizeof(dcmd), NULL);
|
|
int len = ReaderReceive(answer, answer_parity);
|
|
if(!len){
|
|
if (MF_DBGLEVEL >= MF_DBG_ERROR)
|
|
Dbprintf("Authentication failed. Card timeout.");
|
|
return 1;
|
|
}
|
|
return len;
|
|
}
|
|
|
|
int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData){
|
|
|
|
int len;
|
|
// load key, keynumber
|
|
uint8_t data[2]={0x0a, 0x00};
|
|
uint8_t receivedAnswer[MAX_FRAME_SIZE];
|
|
uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
|
|
|
|
len = mifare_sendcmd_special(NULL, 1, 0x02, data, receivedAnswer,receivedAnswerPar,NULL);
|
|
if (len == 1) {
|
|
if (MF_DBGLEVEL >= MF_DBG_ERROR)
|
|
Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
|
|
return 1;
|
|
}
|
|
|
|
if (len == 12) {
|
|
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
|
|
Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
|
|
receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],
|
|
receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],
|
|
receivedAnswer[10],receivedAnswer[11]);
|
|
}
|
|
memcpy(blockData, receivedAnswer, 12);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){
|
|
|
|
int len;
|
|
uint8_t data[17] = {0x00};
|
|
data[0] = 0xAF;
|
|
memcpy(data+1,key,16);
|
|
|
|
uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
|
|
uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
|
|
|
|
len = mifare_sendcmd_special2(NULL, 1, 0x03, data, receivedAnswer, receivedAnswerPar ,NULL);
|
|
|
|
if ((receivedAnswer[0] == 0x03) && (receivedAnswer[1] == 0xae)) {
|
|
if (MF_DBGLEVEL >= MF_DBG_ERROR)
|
|
Dbprintf("Auth Error: %02x %02x", receivedAnswer[0], receivedAnswer[1]);
|
|
return 1;
|
|
}
|
|
|
|
if (len == 12){
|
|
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
|
|
Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
|
|
receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],
|
|
receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],
|
|
receivedAnswer[10],receivedAnswer[11]);
|
|
}
|
|
memcpy(blockData, receivedAnswer, 12);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// MIFARE check keys
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
// one key check
|
|
int MifareChkBlockKey(uint8_t *uid, uint32_t *cuid, uint8_t *cascade_levels, uint64_t ui64Key, uint8_t blockNo, uint8_t keyType, uint8_t debugLevel) {
|
|
|
|
struct Crypto1State mpcs = {0, 0};
|
|
struct Crypto1State *pcs;
|
|
pcs = &mpcs;
|
|
|
|
// Iceman: use piwi's faster nonce collecting part in hardnested.
|
|
if (*cascade_levels == 0) { // need a full select cycle to get the uid first
|
|
iso14a_card_select_t card_info;
|
|
if(!iso14443a_select_card(uid, &card_info, cuid, true, 0, true)) {
|
|
if (debugLevel >= 1) Dbprintf("ChkKeys: Can't select card");
|
|
return 1;
|
|
}
|
|
switch (card_info.uidlen) {
|
|
case 4 : *cascade_levels = 1; break;
|
|
case 7 : *cascade_levels = 2; break;
|
|
case 10: *cascade_levels = 3; break;
|
|
default: break;
|
|
}
|
|
} else { // no need for anticollision. We can directly select the card
|
|
if(!iso14443a_select_card(uid, NULL, NULL, false, *cascade_levels, true)) {
|
|
if (debugLevel >= 1) Dbprintf("ChkKeys: Can't select card (UID) lvl=%d", *cascade_levels);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
if(mifare_classic_auth(pcs, *cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
|
|
// SpinDelayUs(AUTHENTICATION_TIMEOUT); // it not needs because mifare_classic_auth have timeout from iso14a_set_timeout()
|
|
return 2;
|
|
} else {
|
|
/* // let it be here. it like halt command, but maybe it will work in some strange cases
|
|
uint8_t dummy_answer = 0;
|
|
ReaderTransmit(&dummy_answer, 1, NULL);
|
|
int timeout = GetCountSspClk() + AUTHENTICATION_TIMEOUT;
|
|
// wait for the card to become ready again
|
|
while(GetCountSspClk() < timeout) {};
|
|
*/
|
|
// it needs after success authentication
|
|
mifare_classic_halt(pcs, *cuid);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// multi key check
|
|
int MifareChkBlockKeys(uint8_t *keys, uint8_t keyCount, uint8_t blockNo, uint8_t keyType, uint8_t debugLevel) {
|
|
uint8_t uid[10];
|
|
uint32_t cuid = 0;
|
|
uint8_t cascade_levels = 0;
|
|
uint64_t ui64Key = 0;
|
|
|
|
int retryCount = 0;
|
|
for (uint8_t i = 0; i < keyCount; i++) {
|
|
|
|
// Allow button press / usb cmd to interrupt device
|
|
if (BUTTON_PRESS() && !usb_poll_validate_length()) {
|
|
Dbprintf("ChkKeys: Cancel operation. Exit...");
|
|
return -2;
|
|
}
|
|
|
|
ui64Key = bytes_to_num(keys + i * 6, 6);
|
|
int res = MifareChkBlockKey(uid, &cuid, &cascade_levels, ui64Key, blockNo, keyType, debugLevel);
|
|
|
|
// can't select
|
|
if (res == 1) {
|
|
retryCount++;
|
|
if (retryCount >= 5) {
|
|
Dbprintf("ChkKeys: block=%d key=%d. Can't select. Exit...", blockNo, keyType);
|
|
return -1;
|
|
}
|
|
--i; // try the same key once again
|
|
|
|
SpinDelay(20);
|
|
// Dbprintf("ChkKeys: block=%d key=%d. Try the same key once again...", blockNo, keyType);
|
|
continue;
|
|
}
|
|
|
|
// can't authenticate
|
|
if (res == 2) {
|
|
retryCount = 0;
|
|
continue; // can't auth. wrong key.
|
|
}
|
|
|
|
return i + 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// multisector multikey check
|
|
int MifareMultisectorChk(uint8_t *keys, uint8_t keyCount, uint8_t SectorCount, uint8_t keyType, uint8_t debugLevel, TKeyIndex *keyIndex) {
|
|
int res = 0;
|
|
|
|
// int clk = GetCountSspClk();
|
|
|
|
for(int sc = 0; sc < SectorCount; sc++){
|
|
WDT_HIT();
|
|
|
|
int keyAB = keyType;
|
|
do {
|
|
res = MifareChkBlockKeys(keys, keyCount, FirstBlockOfSector(sc), keyAB & 0x01, debugLevel);
|
|
if (res < 0){
|
|
return res;
|
|
}
|
|
if (res > 0){
|
|
(*keyIndex)[keyAB & 0x01][sc] = res;
|
|
}
|
|
} while(--keyAB > 0);
|
|
}
|
|
|
|
// Dbprintf("%d %d", GetCountSspClk() - clk, (GetCountSspClk() - clk)/(SectorCount*keyCount*(keyType==2?2:1)));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|