Mesh App and Net Keys generation

RE: Mesh App and Net Keys generation

Joakim Jakobsen — Wed, 10 Aug 2022 11:02:37 GMT

Talked to our mobile developers about this:

The user needs to provide the 16-byte key:
iOS:

However, the library comes with a helper method that does it:

https://github.com/NordicSemiconductor/IOS-nRF-Mesh-Library/blob/756c6dfde368832a50774d478c365f2615084660/nRFMeshProvision/Classes/Type%20Extensions/Data%2BKeys.swift#L35

Implementation: https://github.com/NordicSemiconductor/IOS-nRF-Mesh-Library/blob/756c6dfde368832a50774d478c365f2615084660/nRFMeshProvision/Classes/Crypto/Crypto.swift#L48

On Android you could call the following method if you want to generate your own key:
https://github.com/NordicSemiconductor/Android-nRF-Mesh-Library/blob/d2292fac77cd195bb962c4be6b2cd245cc6f0e86/mesh/src/main/java/no/nordicsemi/android/mesh/utils/SecureUtils.java#L123

Br,
Joakim

RE: Mesh App and Net Keys generation

AndyM — Tue, 09 Aug 2022 15:03:01 GMT

Yes please, I need an algorithm so I can generate those keys in my application

Thanks

RE: Mesh App and Net Keys generation

Joakim Jakobsen — Tue, 09 Aug 2022 10:51:45 GMT

Hi.

That is correct.

Using our nRF Mesh mobile application you can generate both Network keys and App keys, that are to be used during provisioning. The keys can be generated under the settings tab.

You can also manually enter the keys when adding new keys.

I don't have exact information about the algorithm that we use for the key generation, but I can try to check if you need more information about it?

Br,
Joakim