What kind of encryption provisioner use to send provisioning data to provisionee node

[shohidur]

Hi,

I was running the light-switch example.

I would like to know  what particular security used in different step of that provisioning process?
I can see in authentication a pre-programmed shared secret is used between provisioner and provisionee node. Now i would like to know similar issues in different steps.  i would appreciate answers to the following questions:

1) How do they exchange their public keys?  Mean which OOB?

2) How do they encrypt provisioning data?

3) If any key used in step 2, how that was derived ?

Thanks

[Mttrinh]

Hi,

I suggest you have a look at the Provisioning process and APIs and Chapter "5.4.3 Provisioning security" in the Mesh Specification.