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Is it possible to update multiple records within a single APDU command? For example if I wanted to update PNN with 3 entries, is there a way of sending a single command instead of 3 commands?

user3846756
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1 Answers1

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No, at least not with an ISO/IEC 7816-4 compatible RECORD based command it seems. Both UPDATE RECORD and APPEND RECORD only seem to take one record.

If an EF supporting records also supports UPDATE BINARY however you may be able to write multiple records directly as bytes. ISO/IEC 7816-4 does seem to leave this option open; then again, 7816-4 leaves a lot of things open.

Of course, if you have a programmable card, anything can be done.

So...it depends.

Maarten Bodewes
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