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fix Mifare AUTH for hi14areader command

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adam@algroup.co.uk 2009-08-24 12:09:43 +00:00
parent bea2a8660e
commit 093cbaf63e
1 changed files with 11 additions and 10 deletions
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21
armsrc/iso14443a.c
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@ -914,8 +914,6 @@ static const BYTE response2a[] = { 0x51, 0x48, 0x1d, 0x80, 0x84 }; // uid - cas
BYTE response3a[] = { 0x20, 0x00, 0x00 }; // SAK Select (cascade2) successful response (DESFire)
ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
// When reader tries to authenticate
// static const BYTE cmd5[] = { 0x60, 0x00, 0xf5, 0x7b };
static const BYTE response5[] = { 0x00, 0x00, 0x00, 0x00 }; // Very random tag nonce
BYTE *resp;
@ -1503,6 +1501,9 @@ void ReaderIso14443a(DWORD parameter)
//BYTE cmd6[] = { 0xe0,0x50,0xbc,0xa5 }; // original RATS
BYTE cmd6[] = { 0xe0,0x21,0xb2,0xc7 }; // Desfire RATS
// Mifare AUTH
BYTE cmd7[] = { 0x60, 0x00, 0x00, 0x00 };
int reqaddr = 2024; // was 2024 - tied to other size changes
int reqsize = 60;
@ -1525,8 +1526,8 @@ void ReaderIso14443a(DWORD parameter)
BYTE *req6 = (((BYTE *)BigBuf) + reqaddr + (reqsize * 5));
int req6Len;
//BYTE *req7 = (((BYTE *)BigBuf) + reqaddr + (reqsize * 6));
//int req7Len;
BYTE *req7 = (((BYTE *)BigBuf) + reqaddr + (reqsize * 6));
int req7Len;
BYTE *receivedAnswer = (((BYTE *)BigBuf) + 3560); // was 3560 - tied to other size changes
@ -1771,13 +1772,15 @@ void ReaderIso14443a(DWORD parameter)
}
// Secondly compute the two CRC bytes at the end
ComputeCrc14443(CRC_14443_A, cmd5, 2, &cmd5[2], &cmd5[3]);
ComputeCrc14443(CRC_14443_A, cmd7, 2, &cmd7[2], &cmd7[3]);
CodeIso14443aAsReader(cmd7, sizeof(cmd7));
memcpy(req7, ToSend, ToSendMax); req7Len = ToSendMax;
// Send authentication request (Mifare Classic)
TransmitFor14443a(req5, req5Len, &samples, &wait);
TransmitFor14443a(req7, req7Len, &samples, &wait);
trace[traceLen++] = 0; trace[traceLen++] = 0; trace[traceLen++] = 0; trace[traceLen++] = 0;
trace[traceLen++] = 0; trace[traceLen++] = 0; trace[traceLen++] = 0; trace[traceLen++] = 0;
trace[traceLen++] = 4;
memcpy(trace+traceLen, cmd5, 4);
memcpy(trace+traceLen, cmd7, 4);
traceLen += 4;
if(traceLen > TRACE_LENGTH) goto done;
if(GetIso14443aAnswerFromTag(receivedAnswer, 100, &samples, &elapsed)) {
@ -1808,9 +1811,7 @@ void ReaderIso14443a(DWORD parameter)
}
done:
LED_A_OFF();
LED_B_OFF();
LED_C_OFF();
LEDsoff();
DbpIntegers(rsamples, 0xCC, 0xCC);
DbpString("ready..");
}