Authentication process

[Huzaifa]

Hello folks,

I'm newbie on NRF, I have NRF51422 with Keil IDE and I want to create a mesh network on that kit which will continuously broadcast the data of sensors to the connected phones via BLE, It may be Temperature sensor or something else.

Actual question is related to the authentication by which only those phones are able to get the data which are authenticated, for that purpose I want to know the authentication procedure.

Anyone have idea about this?

Small help will be appreciated.

Thanks in advance!

[Mttrinh]

Hi,

I'm a little bit confused on what you want to do. Do you want to create a Bluetooth Mesh Network, or do you want to send data from your device to multiple phones via BLE? Can you give me more details about your use-case?

[Mttrinh]

Do you want to have some kind of passkey? You can also consider whitelisting, it is used to restrict connection or scanning from any other than predetermined (known) devices.

Do you want to have multple phones connected simultaneously?

[Huzaifa]

Yeah I learned about the whitelisting, but I want a mechanism like bluetooth pairing between devices.

If it possible please guide me.

Do you want to have multple phones connected simultaneously?

I want to connect in that way with single module transmit to multiple phones.

Thank you!

[Mttrinh]

If you only want pairing, you can have a look at the UART example we have in the SDK.

You can also do bonding, this can be done after the devices are paired. Bonding means that the devices store the keys that have already been exchanged when they paired and use those again the next time they connect.

You want your device to act as a peripheral, right? We don't have an example that let a peripheral connect to multiple centrals for nRF51. But you can look at this example, it is from a newer SDK but it might give you an idea of how to do it.

Just a heads up, in our later SDKs for Mesh, support for nRF51 series is being dropped. You can still build the examples using CMake build system.