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APDU response SW1SW2 question

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Pondita
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APDU response SW1SW2 question

Post by Pondita » Thu Jul 20, 2017 12:09 am

I have a question. Maybe this question is stupid. ISO/IEC 7816 is mentioning that SW1 value should be in the interval 61-6F, must I use the value within the area of 61-6F ? Or is it up to me, which SW1 values I will use for responses. For the success response I think that SW1SW2 value should be always 0x9000, right?
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Tarantino
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Re: APDU response SW1SW2 question

Post by Tarantino » Thu Jul 20, 2017 4:17 am

0x9000 is used for success. If you can find an ISO7816 SW that matches the error condition that you are trying to indicate, I think it is a good idea to use that.
The greatest glory in living lies not in never falling, but in rising every time we fall.--Nelson Mandela
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