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Hi Saravana,
Yes of course, you can use an external connected SAM in your device. But in this case you have to implement the communication by yourself. This depends of an external ISO7816 card reader and the driver library of the card reader.
Another point is important: usually you never deal with key values directly. You do not read out a key value from SAM and use it for an authentication! You use the SAM for the authentication to let calculate the required steps inside of the SAM and only handover the intermediate results to the card. The SAM has commands to authenticate all MIFARE products directly or indirect with intermediate results. This is not possible with TapLinx, because you have no interface in TapLinx to “hook” into the authenticate procedure of TapLinx.
Regards,
The TapLinx Team
Yes of course, you can use an external connected SAM in your device. But in this case you have to implement the communication by yourself. This depends of an external ISO7816 card reader and the driver library of the card reader.
Another point is important: usually you never deal with key values directly. You do not read out a key value from SAM and use it for an authentication! You use the SAM for the authentication to let calculate the required steps inside of the SAM and only handover the intermediate results to the card. The SAM has commands to authenticate all MIFARE products directly or indirect with intermediate results. This is not possible with TapLinx, because you have no interface in TapLinx to “hook” into the authenticate procedure of TapLinx.
Regards,
The TapLinx Team
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