JavaCard OS

Posted: **Fri Sep 15, 2017 2:10 am**

As we all know, for T=0 protocol Case 4 APDUs, once I have obtained a 0x9000, this meant that I can send a get Response command to retrieve the expected response data.

Get Response Command
>> 00 C0 00 00 Le

However, I kept getting an error status code 0x6E00, the meaning of which is that the CLA value is not supported.

Does anyone know why this happened?

Posted: **Fri Sep 15, 2017 5:14 am**

For T=0, JCRE needs to send 61xx , where xx is the number of expected bytes. The CAD then sends a GET RESPONSE, with the same CLA byte as before and Le == xx. Finally the JCRE send the response.

Posted: **Fri Sep 15, 2017 6:29 am**

The problem now is that the data which I am expecting did not show up after the SW response bytes.

JavaCard OS

Error 6E00 when receiving the response data under T0

Error 6E00 when receiving the response data under T0

Re: Error 6E00 when receiving the response data under T0

Re: Error 6E00 when receiving the response data under T0