#include "mifaredesfire.h"
#include "des.h"
+#include "BigBuf.h"
#define MAX_APPLICATION_COUNT 28
#define MAX_FILE_COUNT 16
-#define MAX_FRAME_SIZE 60
+#define MAX_DESFIRE_FRAME_SIZE 60
#define NOT_YET_AUTHENTICATED 255
-#define FRAME_PAYLOAD_SIZE (MAX_FRAME_SIZE - 5)
+#define FRAME_PAYLOAD_SIZE (MAX_DESFIRE_FRAME_SIZE - 5)
+#define RECEIVE_SIZE 64
// the block number for the ISO14443-4 PCB
uint8_t pcb_blocknum = 0;
//static uint8_t __res[MAX_FRAME_SIZE];
bool InitDesfireCard(){
-
- // Make sure it is off.
-// FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-// SpinDelay(300);
- byte_t cardbuf[USB_CMD_DATA_SIZE];
- memset(cardbuf,0,sizeof(cardbuf));
+ byte_t cardbuf[USB_CMD_DATA_SIZE] = {0x00};
+
+ iso14a_card_select_t *card = (iso14a_card_select_t*)cardbuf;
- iso14a_set_tracing(TRUE);
+ set_tracing(TRUE);
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
- iso14a_card_select_t *card = (iso14a_card_select_t*)cardbuf;
int len = iso14443a_select_card(NULL,card,NULL);
if (!len) {
- if (MF_DBGLEVEL >= 1) {
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)
Dbprintf("Can't select card");
- }
- OnError();
+ OnError(1);
return false;
}
return true;
*/
uint8_t flags = arg0;
size_t datalen = arg1;
- uint8_t resp[RECV_RES_SIZE];
+ uint8_t resp[RECEIVE_SIZE];
memset(resp,0,sizeof(resp));
if (MF_DBGLEVEL >= 4) {
}
if ( flags & CLEARTRACE ){
- iso14a_clear_trace();
+ clear_trace();
}
if ( flags & INIT ){
}
int len = DesfireAPDU(datain, datalen, resp);
- if (MF_DBGLEVEL >= 4) {
- print_result("ERR <--: ", resp, len);
- }
+ if (MF_DBGLEVEL >= 4) {
+ print_result("ERR <--: ", resp, len);
+ }
if ( !len ) {
- OnError();
+ OnError(2);
return;
}
void MifareDesfireGetInformation(){
int len = 0;
- uint8_t resp[USB_CMD_DATA_SIZE];
- uint8_t dataout[USB_CMD_DATA_SIZE];
- byte_t cardbuf[USB_CMD_DATA_SIZE];
-
- memset(resp,0,sizeof(resp));
- memset(dataout,0, sizeof(dataout));
- memset(cardbuf,0,sizeof(cardbuf));
+ uint8_t resp[USB_CMD_DATA_SIZE] = {0x00};
+ uint8_t dataout[USB_CMD_DATA_SIZE] = {0x00};
+ byte_t cardbuf[USB_CMD_DATA_SIZE] = {0x00};
/*
1 = PCB 1
PCB == 0x0A because sending CID byte.
CID == 0x00 first card?
*/
- iso14a_clear_trace();
- iso14a_set_tracing(TRUE);
+ clear_trace();
+ set_tracing(TRUE);
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
// card select - information
iso14a_card_select_t *card = (iso14a_card_select_t*)cardbuf;
byte_t isOK = iso14443a_select_card(NULL, card, NULL);
- if (isOK != 1) {
- if (MF_DBGLEVEL >= 1) {
+ if ( isOK == 0) {
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) {
Dbprintf("Can't select card");
}
- OnError();
+ OnError(1);
return;
}
len = DesfireAPDU(cmd, cmd_len, resp);
if ( !len ) {
print_result("ERROR <--: ", resp, len);
- OnError();
+ OnError(2);
return;
}
len = DesfireAPDU(cmd, cmd_len, resp);
if ( !len ) {
print_result("ERROR <--: ", resp, len);
- OnError();
+ OnError(2);
return;
}
len = DesfireAPDU(cmd, cmd_len, resp);
if ( !len ) {
print_result("ERROR <--: ", resp, len);
- OnError();
+ OnError(2);
return;
}
//uint8_t new_key_data8[8] = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77};
//uint8_t new_key_data16[16] = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF};
- //uint8_t* bigbuffer = mifare_get_bigbufptr();
uint8_t resp[256] = {0x00};
uint8_t IV[16] = {0x00};
uint8_t encBoth[32] = {0x00};
InitDesfireCard();
-
- LED_A_ON();
- LED_B_OFF();
- LED_C_OFF();
// 3 olika sätt att authenticera. AUTH (CRC16) , AUTH_ISO (CRC32) , AUTH_AES (CRC32)
// 4 olika crypto algo DES, 3DES, 3K3DES, AES
// des, nyckel 0,
switch (mode){
case 1:{
- uint8_t keybytes[8];
+ if (algo == 1) {
+
+ uint8_t keybytes[8] = {0x00};
+ uint8_t RndA[8] = {0x00};
+ uint8_t RndB[8] = {0x00};
+
if (datain[1] == 0xff){
memcpy(keybytes,null_key_data8,8);
} else{
memcpy(keybytes, datain+1, datalen);
}
+ struct desfire_key defaultkey = {0};
+ desfirekey_t key = &defaultkey;
+ Desfire_des_key_new(keybytes, key);
+
cmd[0] = AUTHENTICATE;
cmd[1] = keyno; //keynumber
len = DesfireAPDU(cmd, 2, resp);
if ( !len ) {
- if (MF_DBGLEVEL >= 1) {
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) {
DbpString("Authentication failed. Card timeout.");
}
- OnError();
+ OnError(3);
return;
}
if ( resp[2] == 0xaf ){
} else {
DbpString("Authetication failed. Invalid key number.");
- OnError();
+ OnError(3);
return;
}
memcpy( encRndB, resp+3, 8);
- des_dec(&decRndB, &encRndB, &keybytes);
+ des_dec(&decRndB, &encRndB, key->data);
+ memcpy(RndB, decRndB, 8);
rol(decRndB,8);
+ // This should be random
uint8_t decRndA[8] = {0x00};
+ memcpy(RndA, decRndA, 8);
uint8_t encRndA[8] = {0x00};
- des_dec(&encRndA, &decRndA, &keybytes);
+ des_dec(&encRndA, &decRndA, key->data);
memcpy(both, encRndA, 8);
for (int x = 0; x < 8; x++) {
decRndB[x] = decRndB[x] ^ encRndA[x];
-
}
- des_dec(&encRndB, &decRndB, &keybytes);
+ des_dec(&encRndB, &decRndB, key->data);
memcpy(both + 8, encRndB, 8);
len = DesfireAPDU(cmd, 17, resp);
if ( !len ) {
- if (MF_DBGLEVEL >= 1) {
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) {
DbpString("Authentication failed. Card timeout.");
}
- OnError();
+ OnError(3);
return;
}
if ( resp[2] == 0x00 ){
- // TODO: Create session key.
+
+ struct desfire_key sessionKey = {0};
+ desfirekey_t skey = &sessionKey;
+ Desfire_session_key_new( RndA, RndB , key, skey );
+ //print_result("SESSION : ", skey->data, 8);
+
+ memcpy(encRndA, resp+3, 8);
+ des_dec(&encRndA, &encRndA, key->data);
+ rol(decRndA,8);
+ for (int x = 0; x < 8; x++) {
+ if (decRndA[x] != encRndA[x]) {
+ DbpString("Authetication failed. Cannot varify PICC.");
+ OnError(4);
+ return;
+ }
+ }
+
+ //Change the selected key to a new value.
+ /*
+
+ cmd[0] = CHANGE_KEY;
+ cmd[1] = keyno;
+
+ uint8_t newKey[16] = {0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77};
+
+ uint8_t first, second;
+ uint8_t buff1[8] = {0x00};
+ uint8_t buff2[8] = {0x00};
+ uint8_t buff3[8] = {0x00};
+
+ memcpy(buff1,newKey, 8);
+ memcpy(buff2,newKey + 8, 8);
+
+ ComputeCrc14443(CRC_14443_A, newKey, 16, &first, &second);
+ memcpy(buff3, &first, 1);
+ memcpy(buff3 + 1, &second, 1);
+
+ des_dec(&buff1, &buff1, skey->data);
+ memcpy(cmd+2,buff1,8);
+
+ for (int x = 0; x < 8; x++) {
+ buff2[x] = buff2[x] ^ buff1[x];
+ }
+ des_dec(&buff2, &buff2, skey->data);
+ memcpy(cmd+10,buff2,8);
+
+ for (int x = 0; x < 8; x++) {
+ buff3[x] = buff3[x] ^ buff2[x];
+ }
+ des_dec(&buff3, &buff3, skey->data);
+ memcpy(cmd+18,buff3,8);
+
+ // The command always times out on the first attempt, this will retry until a response
+ // is recieved.
+ len = 0;
+ while(!len) {
+ len = DesfireAPDU(cmd,26,resp);
+ }
+ */
+
+ OnSuccess();
+ cmd_send(CMD_ACK,1,0,0,skey->data,8);
+
} else {
DbpString("Authetication failed.");
- OnError();
+ OnError(6);
return;
}
- // TODO: Optionally, confirm ek0RndA' = RndA' to varify PICC
-
+ }
}
break;
case 2:
case 3:{
//defaultkey
- uint8_t keybytes[16];
+ uint8_t keybytes[16] = {0x00};
if (datain[1] == 0xff){
memcpy(keybytes,PICC_MASTER_KEY16,16);
} else{
memcpy(keybytes, datain+1, datalen);
}
- struct desfire_key defaultkey = {0};
+ struct desfire_key defaultkey = {0x00};
desfirekey_t key = &defaultkey;
Desfire_aes_key_new( keybytes, key);
if( MF_DBGLEVEL >= 4) {
Dbprintf("AES context failed to init");
}
- OnError();
+ OnError(7);
return;
}
cmd[1] = 0x00; //keynumber
len = DesfireAPDU(cmd, 2, resp);
if ( !len ) {
- if (MF_DBGLEVEL >= 1) {
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) {
DbpString("Authentication failed. Card timeout.");
}
- OnError();
+ OnError(3);
return;
}
len = DesfireAPDU(cmd, 33, resp); // 1 + 32 == 33
if ( !len ) {
- if (MF_DBGLEVEL >= 1) {
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) {
DbpString("Authentication failed. Card timeout.");
}
- OnError();
+ OnError(3);
return;
}
print_result("SESSION : ", skey->data, 16);
} else {
DbpString("Authetication failed.");
- OnError();
+ OnError(7);
return;
}
-
break;
}
}
// dataout = pointer to response data array
int DesfireAPDU(uint8_t *cmd, size_t cmd_len, uint8_t *dataout){
- uint32_t status = 0;
+ size_t len = 0;
size_t wrappedLen = 0;
- uint8_t wCmd[USB_CMD_DATA_SIZE] = {0};
+ uint8_t wCmd[USB_CMD_DATA_SIZE] = {0x00};
+
+ uint8_t resp[MAX_FRAME_SIZE];
+ uint8_t par[MAX_PARITY_SIZE];
wrappedLen = CreateAPDU( cmd, cmd_len, wCmd);
}
ReaderTransmit( wCmd, wrappedLen, NULL);
- status = ReaderReceive(dataout);
+ len = ReaderReceive(resp, par);
- if( status == 0x00){
+ if( len == 0x00 ){
if (MF_DBGLEVEL >= 4) {
Dbprintf("fukked");
}
}
// if we received an I- or R(ACK)-Block with a block number equal to the
// current block number, toggle the current block number
- else if (status >= 4 // PCB+CID+CRC = 4 bytes
- && ((dataout[0] & 0xC0) == 0 // I-Block
- || (dataout[0] & 0xD0) == 0x80) // R-Block with ACK bit set to 0
- && (dataout[0] & 0x01) == pcb_blocknum) // equal block numbers
+ else if (len >= 4 // PCB+CID+CRC = 4 bytes
+ && ((resp[0] & 0xC0) == 0 // I-Block
+ || (resp[0] & 0xD0) == 0x80) // R-Block with ACK bit set to 0
+ && (resp[0] & 0x01) == pcb_blocknum) // equal block numbers
{
pcb_blocknum ^= 1; //toggle next block
}
- return status;
+
+ memcpy(dataout, resp, len);
+ return len;
}
// CreateAPDU
cmd[0] = 0x0A; // 0x0A = skicka cid, 0x02 = ingen cid. Särskilda bitar //
cmd[0] |= pcb_blocknum; // OR the block number into the PCB
- cmd[1] = 0x00; // CID: 0x00 //FIXME: allow multiple selected cards
+ cmd[1] = 0x00; // CID: 0x00 //TODO: allow multiple selected cards
memcpy(cmd+2, datain, len);
AppendCrc14443a(cmd, len+2);
LEDsoff();
}
-void OnError(){
+void OnError(uint8_t reason){
pcb_blocknum = 0;
ReaderTransmit(deselect_cmd, 3 , NULL);
+
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- cmd_send(CMD_ACK,0,0,0,0,0);
+ cmd_send(CMD_ACK,0,reason,0,0,0);
LEDsoff();
}
projects / proxmark3-svn / blobdiff