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n-hutton 2024-11-14 19:52:08 +00:00
commit 305534dd32
1 changed files with 33 additions and 27 deletions
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54
armsrc/emvsim.c
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@ -825,7 +825,7 @@ void EMVsim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain, uint16_t a
uint32_t cuid = 0, authTimer = 0;
uint32_t nr, ar;
//uint8_t blockNo;
bool encrypted_data;
//bool encrypted_data;
uint8_t cardWRBL = 0;
uint8_t cardAUTHSC = 0;
@ -1129,15 +1129,16 @@ void EMVsim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain, uint16_t a
break;
}
encrypted_data = (cardAUTHKEY != AUTHKEYNONE);
if (encrypted_data) {
Dbprintf("[MFEMUL_WORK] Not expecting encrypted data. Quitting");
break;
} else {
// Data in clear
//encrypted_data = (cardAUTHKEY != AUTHKEYNONE);
//if (encrypted_data) {
// Dbprintf("[MFEMUL_WORK] Not expecting encrypted data. Quitting");
// break;
//} else {
// // Data in clear
// memcpy(receivedCmd_dec, receivedCmd, receivedCmd_len);
// // Dbprintf("001 [MFEMUL_WORK] Data in clear(!!)"); // huuton disable comment
//}
memcpy(receivedCmd_dec, receivedCmd, receivedCmd_len);
// Dbprintf("001 [MFEMUL_WORK] Data in clear(!!)"); // huuton disable comment
}
// all commands must have a valid CRC
if (!CheckCrc14A(receivedCmd_dec, receivedCmd_len)) {
@ -1224,7 +1225,8 @@ void EMVsim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain, uint16_t a
// BUT... ACK --> NACK
if (receivedCmd_len == 1 && receivedCmd_dec[0] == CARD_ACK) {
Dbprintf("[MFEMUL_WORK] ACK --> NACK !!");
EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA);
//EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA);
EmSend4bit(CARD_NACK_NA);
FpgaDisableTracing();
break;
}
@ -1232,7 +1234,8 @@ void EMVsim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain, uint16_t a
// rule 12 of 7.5.3. in ISO 14443-4. R(NAK) --> R(ACK)
if (receivedCmd_len == 1 && receivedCmd_dec[0] == CARD_NACK_NA) {
Dbprintf("[MFEMUL_WORK] NACK --> NACK !!");
EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_ACK) : CARD_ACK);
//EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_ACK) : CARD_ACK);
EmSend4bit(CARD_ACK);
FpgaDisableTracing();
break;
}
@ -1482,18 +1485,20 @@ void EMVsim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain, uint16_t a
// case MFEMUL_WORK => CMD RATS
if (receivedCmd_len == 4 && receivedCmd_dec[0] == ISO14443A_CMD_RATS && receivedCmd_dec[1] == 0x80) {
if (rats && rats_len) {
if (encrypted_data) {
memcpy(response, rats, rats_len);
mf_crypto1_encrypt(pcs, response, rats_len, response_par);
EmSendCmdPar(response, rats_len, response_par);
} else {
//if (encrypted_data) {
// memcpy(response, rats, rats_len);
// mf_crypto1_encrypt(pcs, response, rats_len, response_par);
// EmSendCmdPar(response, rats_len, response_par);
//} else {
// EmSendCmd(rats, rats_len);
//}
EmSendCmd(rats, rats_len);
}
FpgaDisableTracing();
//if (999 >= DBG_EXTENDED) Dbprintf("[MFEMUL_WORK] RCV RATS => ACK"); // nathan print
} else {
Dbprintf("Rats and rats len is: %d, %d", rats[0], rats_len);
EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA);
//EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA);
EmSend4bit(CARD_NACK_NA);
FpgaDisableTracing();
cardSTATE_TO_IDLE();
if (999 >= DBG_EXTENDED)
@ -1506,18 +1511,19 @@ void EMVsim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain, uint16_t a
if (receivedCmd_len == 3 && receivedCmd_dec[0] == ISO14443A_CMD_NXP_DESELECT) {
if (rats && rats_len) {
// response back NXP_DESELECT
if (encrypted_data) {
memcpy(response, receivedCmd_dec, receivedCmd_len);
mf_crypto1_encrypt(pcs, response, receivedCmd_len, response_par);
EmSendCmdPar(response, receivedCmd_len, response_par);
} else
//if (encrypted_data) {
// memcpy(response, receivedCmd_dec, receivedCmd_len);
// mf_crypto1_encrypt(pcs, response, receivedCmd_len, response_par);
// EmSendCmdPar(response, receivedCmd_len, response_par);
//} else
EmSendCmd(receivedCmd_dec, receivedCmd_len);
FpgaDisableTracing();
if (999 >= DBG_EXTENDED)
Dbprintf("[MFEMUL_WORK] RCV NXP DESELECT => ACK");
} else {
EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA);
//EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA);
EmSend4bit(CARD_NACK_NA);
FpgaDisableTracing();
cardSTATE_TO_IDLE();
if (999 >= DBG_EXTENDED)