Implementing Eddystone EID (and AES) on the nRF52805

[adojang]

Hello, I'm in the process of attempting to implement Eddystone EID on the nRF52805.

It's been a bit of a nightmare, so I'm finally taking the bold step to make my first forum post!

The current sample for eddystone doesn't have any EID implementations yet... It's under 'TODO'

Here is all the documentation from Google:

 https://github.com/google/eddystone/tree/master/configuration-service

https://github.com/nrfconnect/sdk-zephyr/tree/main/samples/bluetooth/eddystone#id1

For now, I'm stuck on even just figuring out how to encrypt the beacons UUID and get the EID.

Please help

[Einar Thorsrud]

Hi,

The Eddystone sample in nRF Connect SDK (Zephyr) is very basic, and at the same time a full Eddystone beacon is quite complex. This is included in the nRF5 SDK though (Eddystone Beacon Application), so I suggest you consider that if you need it. May I ask why you are interested in Eddysone, seen as it is no longer maintained and Google discontinued support for it in 2018?

[adojang]

Hi, thank you for the response!

I've been trying to understand that example for the past few days.

I'm attempting to use Eddystone's EID as a convenient way to change my beacon's MAC address to prevent tracking, while still retaining the identity when the MAC address is decrypted. I suppose it doesn't actually have to be Eddystone, I'm just trying to use the existing framework to simplify what I'm trying to do.

[Einar Thorsrud]

If the only point is to prevent tracking, would it be an alternative to use privacy in form of a random resolvable address? That is the standard Bluetooth solution for avoiding tracking.