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CLA value

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Christy16
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CLA value

Post by Christy16 » Mon Feb 20, 2017 4:12 am

Can I use 0x80 as my CLA value? ISO/IEC 7816-4 spec states that for this CLA, the command coding and meaning is proprietary. Does that mean it is proprietary to my code? And I don't have any question with using this value, so it indicated that this value is legal, right?
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mabel
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Re: CLA value

Post by mabel » Mon Feb 20, 2017 4:56 am

This is fine. It just means you need to document each of your commands you support. If you used ISO/IEC 7816-4 commands, you could just say what commands you support.
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Christy16
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Re: CLA value

Post by Christy16 » Mon Feb 20, 2017 5:29 am

Thanks for the quick reply.

I have another question. ISO/IES 7816-4 says that 0x20 - 0x3f are reserved for future use. Does that mean I should not use these CLAs? Right ?
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