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Infineon OPTIGA Trust X on nRF52840?

Hi all,

I'm interested in adding Infineon OPTIGA Trust X to nRF52840, but I can't found enough information.

Is Infineon OPTIGA Trust X hardware-compatible with nRF52840-PDK. I mean pin compatible.

Can I see any picture about how this two devices looks together?

And, finally, I have seen in documentation and SDK v.15.0.0 some support for nRF52832 (pca 10040), but not for nRF52840. Does it exist some support for nRF52840? If not, could be easy to adapt the code for nRF52832?

Thank you in advance,

Manuel Montenegro

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  • Hi, Jorgen. Let me explain...

    I’m working in a research project about Intelligent Transport Systems. Currently we are studying how to authenticate Bluetooth5 advertisements in long range mode. That’s the reason why we are using nRF52840 (in fact, we are waiting for support of real extended advertisements-more than 31 bytes data-).

    We had a look to nRF Cryptographic library and OPTIGA Trust X. Firstly, we considered that Trust X is more secure because the keys can be saved on chip without possibility of exporting it.

    But, after that, we saw a post about CryptoCell system that looks interesting. Maybe we can use this joined with Access Control Lists (ACL), in order to protect flash memory’s regions where keys is stored. We saw this possibility on this post.

    What would you recomend us?

    Thank you!

    Manuel Montenegro.

  • Thank you for the feedback. There are some root-of-trust capabilities in the CryptoCell, but unfortunately support for this is not yet implemented in our libraries. You should be able to protect flash regions by using the ACL peripheral. If you need an Optiga Trust X device will depend on your required level of security and certification. 

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