Hi,
I tried to use setkey and then the cryptoupdate thru rsaprivatekey object.
When I don't return any value(after using setkey) or even if I return a
value, it returns only 6fb8. This status code specifies that the data is
returned which is of length b8. When I try to use getResponse, it returns me
6d00. But I couldn't understand what happens to the data which I return.
Kindly give the suggestion/solution,
I have attached the code too.
Thnx for ur time allocation,
Latha
PN: Have anybody worked with Cyberflex Access 16K card -
encryption/decryption using asymmetric keys. If so, can u kindly give a
basic guidance for me?
private void encrypt(APDU apdu)
{
buffer = apdu.getBuffer();
byte numBytes = buffer[ISO.OFFSET_LC];
byte[] pin = new byte[4];
pin[0] = 0x00;
pin[1] = 0x00;
pin[2] = 0x00;
pin[3] = 0x00;
if (ownerpin.check(pin, (byte)0, (byte)4) == false)
ISOException.throwIt(swVerificationFailed);
byte tempStore[] = new byte[numBytes];
byte byteRead = (byte)(apdu.setIncomingAndReceive());
if ((numBytes != byteRead))
ISOException.throwIt(ISO.SW_WRONG_LENGTH);
Util.arrayCopy(buffer, (short) ISO.OFFSET_CDATA, tempStore,
(short) 0,(short) buffer[ISO.OFFSET_LC]);
CyberflexFile.selectFile((short)0x3f00);
byte selfile = CyberflexFile.selectFile((short)1235);
CyberflexOS os = new CyberflexOS();
byte readdata = os.readBinaryFile (fileoutbuffer, (short)0, (short)0,
(short) 355);
rsakey.setKey(fileoutbuffer,(short) 0);
boolean init = rsakey.isInitialized();
// rsakey.cryptoUpdate (tempStore, (short) 0, (short) 1, outbuffer, (short)
0);
// Util.arrayCopy(outbuffer,(short) 0, buffer, (short)0, (short)
(outbuffer.length));
short le = apdu.setOutgoing();
apdu.setOutgoingLength((short)1);
if (init == true)
buffer[0] =(byte)0;
else
buffer[0] =(byte)1;
apdu.sendBytes((short) 0, (short)1);
}
Jim Rees wrote:
> You want AsymKey.cryptoUpdate. This should be described in the Cyberflex
> manual, which you can get from Schlumberger's web site.
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