topic Re: NFC tags prevent copying in MCX Microcontrollers

NFC tags prevent copying

Tonic5 — Fri, 19 Jul 2024 02:05:35 GMT

I have a need to scan the tag with my mobile phone and open the link directly to the browser. For example, the user area data of the label is http://xxxxxx?code=aaabbbccc, and the code of each label is unique. My problem is that I don’t have an app to scan tag content, so I can’t read the seven-digit unique ID in the nfc tag, but I want to ensure that https://www.google.com?code=aaabbbccc cannot be used by others. Copy it to other tags. Please see what tags or mechanisms can achieve this.

Re: NFC tags prevent copying

Fabian_R — Fri, 19 Jul 2024 22:33:13 GMT

Hello, my name is Fabian, I've been assigned to support your case.

Thank you for your interest in our products

This can be achieved with the NTAG 424. I will recommend you to please take a look at AN12196 where in section 6 is an example explained step by step.

I recommend you to please use our RFIDDiscover software for configuring and testing your tags. Keep in mind that a reader is required, we highly recommend using a PEGODA 3

Re: NFC tags prevent copying

Tonic5 — Tue, 23 Jul 2024 07:44:26 GMT

Hello Fabian.This chip is designed to prevent duplication by generating random numbers. If a counterfeiter also uses this chip, how can I know if the random numbers generated by the counterfeit chip are generated according to my random number rules?

Re: NFC tags prevent copying

Fabian_R — Tue, 23 Jul 2024 22:14:27 GMT

Hello sir,

Please take a look at our NFC Could Services: https://www.nxp.com/products/wireless-connectivity/nfc-hf/ntag-for-tags-and-labels/ntag-secure-services:NTAG-SERVICES#authentication

Unfortunately, I don't have further information about this service. You will have to contact one of our Distributors.

Please accept my apologies but, this is out of my support scope.