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Is it possible to copy the signature and READ_SIG command of NTAG21x?

Question asked by Naoto Ikeda on Jul 1, 2018
Latest reply on Jul 5, 2018 by Jonathan Iglesias

Is it possible to copy the signature and READ_SIG command of NTAG21x?

 

There is the signature function on NTAG21x for a brand protection.

However I think if other malign IC maker copy the NTAG21x including the signature and READ_SIG, we cannot judge if the IC is made by NXP or not.

 

I think we can verify it if the signature is  generated by UID and private key.

 

Best Regards,

Naoto.

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