// internal sending function. not a RAMFUNC.
bool intMfSniffSend() {
int pckSize = 0;
int pckLen = traceLen;
int pckNum = 0;
FpgaDisableSscDma();
while (pckLen > 0) {
pckSize = MIN(USB_CMD_DATA_SIZE, pckLen);
LED_B_ON();
cmd_send(CMD_ACK, 1, pckSize, pckNum, trace + traceLen - pckLen, pckSize);
LED_B_OFF();
pckLen -= pckSize;
pckNum++;
}
LED_B_ON();
cmd_send(CMD_ACK,2,0,0,0,0);
LED_B_OFF();
iso14a_clear_trace();
return TRUE;
}
// internal sending function. not a RAMFUNC.
bool intMfSniffSend() {
int pckSize = 0;
int pckLen = BigBuf_get_traceLen();
int pckNum = 0;
uint8_t *trace = BigBuf_get_addr();
FpgaDisableSscDma();
while (pckLen > 0) {
pckSize = MIN(USB_CMD_DATA_SIZE, pckLen);
LED_B_ON();
cmd_send(CMD_ACK, 1, BigBuf_get_traceLen(), pckSize, trace + BigBuf_get_traceLen() - pckLen, pckSize);
LED_B_OFF();
pckLen -= pckSize;
pckNum++;
}
LED_B_ON();
cmd_send(CMD_ACK,2,0,0,0,0);
LED_B_OFF();
clear_trace();
return TRUE;
}
bool MfSniffEnd(void){
LED_B_ON();
cmd_send(CMD_ACK,0,0,0,0,0);
LED_B_OFF();
return FALSE;
}
// LEDs: R(C) O(A) G(B) -- R(D) [1, 2, 4 and 8]
void LED(int led, int ms)
{
if (led & LED_RED)
LED_C_ON();
if (led & LED_ORANGE)
LED_A_ON();
if (led & LED_GREEN)
LED_B_ON();
if (led & LED_RED2)
LED_D_ON();
if (!ms)
return;
SpinDelay(ms);
if (led & LED_RED)
LED_C_OFF();
if (led & LED_ORANGE)
LED_A_OFF();
if (led & LED_GREEN)
LED_B_OFF();
if (led & LED_RED2)
LED_D_OFF();
}
void LEDsoff()
{
LED_A_OFF();
LED_B_OFF();
LED_C_OFF();
LED_D_OFF();
}
void LED_B_INIT(int n) {
RCC->AHBENR |= RCC_AHBPeriph_GPIOB; //Active le bus AHBENR
(GPIOB->MODER) |= (1<<2*n); // pour changer le mode de fonctionnement de la pine pine pine
//GPIOB->OTYPER &= (~(1<<15)); //ne pas changer la valeur apr defaut pour le type
(GPIOB->OSPEEDR) |= (1<<2*n+1); // pour changer la vitesse
//ne pas changer la valeur par defaut du No PU No PD
LED_B_OFF(n);
}
void TIM2_IRQHandler (void)
{
TIM2->SR &= ~(0x01);
bufferE[i%4096]= read_ADC();
switch(etat)
{
case 0 : DAC->DHR12R1= bufferE[i%4096];
LED_B_ON(1);
LED_B_OFF(2);
LED_B_OFF(10);
LED_B_OFF(11);
break;
case 1 : DAC->DHR12R1= bufferE[i%4096] + bufferE[(i-1200)%4096] ; // Double
LED_B_ON(2);
LED_B_OFF(1);
LED_B_OFF(10);
LED_B_OFF(11);
break;
case 2 : DAC->DHR12R1= bufferE[i%4096]+0.7*bufferS[(i-2400)%4096]; // Echo
bufferS[i%4096]=DAC->DOR1;
LED_B_ON(10);
LED_B_OFF(2);
LED_B_OFF(1);
LED_B_OFF(11);
break;
case 3 :
float tmp=0;
for(int j=0;j<5;j++)
{
tmp+= (float)bufferE[(i)%4096]*coeffsFIR[(j)%4096]; // FIR 10khz
}
DAC->DHR12R1=tmp;
LED_B_ON(11);
LED_B_OFF(2);
LED_B_OFF(10);
LED_B_OFF(1);
TIM2->SR &= ~(0x01);
break;
}
i++;
}
void MifareDesfireGetInformation(){
int len = 0;
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
2 = cid 2
3 = desfire command 3
4-5 = crc 4 key
5-6 crc
PCB == 0x0A because sending CID byte.
CID == 0x00 first card?
*/
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, true, 0);
if ( isOK == 0) {
if (MF_DBGLEVEL >= MF_DBG_ERROR) {
Dbprintf("Can't select card");
}
OnError(1);
return;
}
memcpy(dataout,card->uid,7);
LED_A_ON();
LED_B_OFF();
LED_C_OFF();
uint8_t cmd[] = {GET_VERSION};
size_t cmd_len = sizeof(cmd);
len = DesfireAPDU(cmd, cmd_len, resp);
if ( !len ) {
print_result("ERROR <--: ", resp, len);
OnError(2);
return;
}
LED_A_OFF();
LED_B_ON();
memcpy(dataout+7,resp+3,7);
// ADDITION_FRAME 1
cmd[0] = ADDITIONAL_FRAME;
len = DesfireAPDU(cmd, cmd_len, resp);
if ( !len ) {
print_result("ERROR <--: ", resp, len);
OnError(2);
return;
}
LED_B_OFF();
LED_C_ON();
memcpy(dataout+7+7,resp+3,7);
// ADDITION_FRAME 2
len = DesfireAPDU(cmd, cmd_len, resp);
if ( !len ) {
print_result("ERROR <--: ", resp, len);
OnError(2);
return;
}
memcpy(dataout+7+7+7,resp+3,14);
cmd_send(CMD_ACK,1,0,0,dataout,sizeof(dataout));
// reset the pcb_blocknum,
pcb_blocknum = 0;
OnSuccess();
}
void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno, uint8_t *datain){
int len = 0;
//uint8_t PICC_MASTER_KEY8[8] = { 0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47};
uint8_t PICC_MASTER_KEY16[16] = { 0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f };
uint8_t null_key_data8[8] = {0x00};
//uint8_t null_key_data16[16] = {0x00};
//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 resp[256] = {0x00};
uint8_t IV[16] = {0x00};
size_t datalen = datain[0];
uint8_t cmd[40] = {0x00};
uint8_t encRndB[16] = {0x00};
uint8_t decRndB[16] = {0x00};
uint8_t nonce[16] = {0x00};
uint8_t both[32] = {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
// 3 olika kommunikations sätt, PLAIN,MAC,CRYPTO
// des, nyckel 0,
switch (mode){
case 1:{
uint8_t keybytes[16];
uint8_t RndA[8] = {0x00};
uint8_t RndB[8] = {0x00};
if (algo == 2) {
if (datain[1] == 0xff){
memcpy(keybytes,PICC_MASTER_KEY16,16);
} else {
memcpy(keybytes, datain+1, datalen);
}
} else {
if (algo == 1) {
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;
if (algo == 2)
Desfire_3des_key_new_with_version(keybytes, key);
else if (algo ==1)
Desfire_des_key_new(keybytes, key);
cmd[0] = AUTHENTICATE;
cmd[1] = keyno; //keynumber
len = DesfireAPDU(cmd, 2, resp);
if ( !len ) {
if (MF_DBGLEVEL >= MF_DBG_ERROR) {
DbpString("Authentication failed. Card timeout.");
}
OnError(3);
return;
}
if ( resp[2] == 0xaf ){
} else {
DbpString("Authetication failed. Invalid key number.");
OnError(3);
return;
}
memcpy( encRndB, resp+3, 8);
if (algo == 2)
tdes_dec(&decRndB, &encRndB, key->data);
else if (algo == 1)
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};
if (algo == 2)
tdes_dec(&encRndA, &decRndA, key->data);
else if (algo == 1)
des_dec(&encRndA, &decRndA, key->data);
memcpy(both, encRndA, 8);
for (int x = 0; x < 8; x++) {
decRndB[x] = decRndB[x] ^ encRndA[x];
}
if (algo == 2)
tdes_dec(&encRndB, &decRndB, key->data);
else if (algo == 1)
des_dec(&encRndB, &decRndB, key->data);
memcpy(both + 8, encRndB, 8);
cmd[0] = ADDITIONAL_FRAME;
memcpy(cmd+1, both, 16 );
len = DesfireAPDU(cmd, 17, resp);
if ( !len ) {
if (MF_DBGLEVEL >= MF_DBG_ERROR) {
DbpString("Authentication failed. Card timeout.");
}
OnError(3);
return;
}
if ( resp[2] == 0x00 ){
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);
if (algo == 2)
tdes_dec(&encRndA, &encRndA, key->data);
else if (algo == 1)
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.
/*
// Current key is a 3DES key, change it to a DES key
if (algo == 2) {
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);
tdes_dec(&buff1, &buff1, skey->data);
memcpy(cmd+2,buff1,8);
for (int x = 0; x < 8; x++) {
buff2[x] = buff2[x] ^ buff1[x];
}
tdes_dec(&buff2, &buff2, skey->data);
memcpy(cmd+10,buff2,8);
for (int x = 0; x < 8; x++) {
buff3[x] = buff3[x] ^ buff2[x];
}
tdes_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);
}
} else {
// Current key is a DES key, change it to a 3DES key
if (algo == 1) {
cmd[0] = CHANGE_KEY;
cmd[1] = keyno;
uint8_t newKey[16] = {0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f};
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();
if (algo == 2)
cmd_send(CMD_ACK,1,0,0,skey->data,16);
else if (algo == 1)
cmd_send(CMD_ACK,1,0,0,skey->data,8);
} else {
DbpString("Authetication failed.");
OnError(6);
return;
}
}
break;
case 2:
//SendDesfireCommand(AUTHENTICATE_ISO, &keyno, resp);
break;
case 3:{
//defaultkey
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 = {0x00};
desfirekey_t key = &defaultkey;
Desfire_aes_key_new( keybytes, key);
AesCtx ctx;
if ( AesCtxIni(&ctx, IV, key->data, KEY128, CBC) < 0 ){
if( MF_DBGLEVEL >= 4) {
Dbprintf("AES context failed to init");
}
OnError(7);
return;
}
cmd[0] = AUTHENTICATE_AES;
cmd[1] = 0x00; //keynumber
len = DesfireAPDU(cmd, 2, resp);
if ( !len ) {
if (MF_DBGLEVEL >= MF_DBG_ERROR) {
DbpString("Authentication failed. Card timeout.");
}
OnError(3);
return;
}
memcpy( encRndB, resp+3, 16);
// dekryptera tagnonce.
AesDecrypt(&ctx, encRndB, decRndB, 16);
rol(decRndB,16);
memcpy(both, nonce,16);
memcpy(both+16, decRndB ,16 );
AesEncrypt(&ctx, both, encBoth, 32 );
cmd[0] = ADDITIONAL_FRAME;
memcpy(cmd+1, encBoth, 32 );
len = DesfireAPDU(cmd, 33, resp); // 1 + 32 == 33
if ( !len ) {
if (MF_DBGLEVEL >= MF_DBG_ERROR) {
DbpString("Authentication failed. Card timeout.");
}
OnError(3);
return;
}
if ( resp[2] == 0x00 ){
// Create AES Session key
struct desfire_key sessionKey = {0};
desfirekey_t skey = &sessionKey;
Desfire_session_key_new( nonce, decRndB , key, skey );
print_result("SESSION : ", skey->data, 16);
} else {
DbpString("Authetication failed.");
OnError(7);
return;
}
break;
}
}
OnSuccess();
cmd_send(CMD_ACK,1,len,0,resp,len);
}
/***************************************************
* Function: void timer0_isr(void)
*
* OverView: If low interrupt actived, called this function.
* Control LED
*
* Note: reference BootLoader.h
***************************************************/
void timer0_isr(void)
{
if(INTCONbits.TMR0IF)
{
INTCONbits.TMR0IF = 0;
TMR0L = tmr0l_temp;
if(!wg_ledCtrl)
{
if(wg_ledPwmDuty <= 0)
{
TMR0L = wg_ledPwmDuty;
LED_WG_OFF();
}
else if(TMR0L == wg_ledPwmDuty)
{
TMR0L = 255 - wg_ledPwmDuty;
LED_WG_ON();
}
else
{
TMR0L = wg_ledPwmDuty;
LED_WG_OFF();
}
}
else if(!r_ledCtrl)
{
if(r_ledPwmDuty <= 0)
{
TMR0L = r_ledPwmDuty;
LED_R_OFF();
}
else if(TMR0L == r_ledPwmDuty)
{
TMR0L = 255 - r_ledPwmDuty;
LED_R_ON();
}
else
{
TMR0L = r_ledPwmDuty;
LED_R_OFF();
}
}
else if(!g_ledCtrl)
{
if(g_ledPwmDuty <= 0)
{
TMR0L = g_ledPwmDuty;
LED_G_OFF();
}
else if(TMR0L == g_ledPwmDuty)
{
TMR0L = 255 - g_ledPwmDuty;
LED_G_ON();
}
else
{
TMR0L = g_ledPwmDuty;
LED_G_OFF();
}
}
else if(!b_ledCtrl)
{
if(b_ledPwmDuty <= 0)
{
TMR0L = b_ledPwmDuty;
LED_B_OFF();
}
else if(TMR0L == b_ledPwmDuty)
{
TMR0L = 255 - b_ledPwmDuty;
LED_B_ON();
}
else
{
TMR0L = b_ledPwmDuty;
LED_B_OFF();
}
}
else
{
TMR0L = tmr0l_temp;
LED_WG_OFF();
LED_R_OFF();
LED_G_OFF();
LED_B_OFF();
}
tmr0l_temp = TMR0L;
}
}
