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Throw an error for incorrect CLAs

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This commit is contained in:
Manuel Thalmann 2023-10-13 01:28:12 +02:00
parent 22b11b1ee8
commit 995ba68bdf
1 changed files with 33 additions and 29 deletions
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62
hwb1/src/hwb1/MyApplet.java
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@ -51,40 +51,44 @@ public class MyApplet extends Applet {
public void process(APDU apdu) { public void process(APDU apdu) {
short length; short length;
byte[] buffer = apdu.getBuffer(); byte[] buffer = apdu.getBuffer();
if (buffer[ISO7816.OFFSET_CLA] != 0x80) {
ISOException.throwIt(ISO7816.SW_CLA_NOT_SUPPORTED);
} else {
byte instruction = buffer[ISO7816.OFFSET_INS];
byte instruction = buffer[ISO7816.OFFSET_INS]; switch (instruction) {
case 0x00:
case 0x04:
byte[] response;
length = apdu.setOutgoing();
switch (instruction) { if (instruction == 0x00) {
case 0x00: response = AuthorName;
case 0x04: } else {
byte[] response; response = storage;
length = apdu.setOutgoing(); }
if (instruction == 0x00) { if (length > response.length) {
response = AuthorName; length = (short) response.length;
} else { }
response = storage;
}
if (length > response.length) { apdu.setOutgoingLength(length);
length = (short) response.length; apdu.sendBytesLong(response, (short) 0, length);
} break;
case 0x02:
length = apdu.setIncomingAndReceive();
apdu.setOutgoingLength(length); if (length > 20) {
apdu.sendBytesLong(response, (short) 0, length); // ToDo: Handle too much data.
break; } else {
case 0x02: Util.arrayCopy(buffer, ISO7816.OFFSET_CDATA, storage, (short) 0, length);
length = apdu.setIncomingAndReceive(); }
break;
if (length > 20) { default:
// ToDo: Handle too much data. ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);
} else { break;
Util.arrayCopy(buffer, ISO7816.OFFSET_CDATA, storage, (short) 0, length); }
}
break;
default:
ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);
break;
} }
} }
} }