Eddystone EID-frame issue

RE: Eddystone EID-frame issue

Tony Wu — Mon, 25 Apr 2016 12:19:59 GMT

Hi Raj,

EID slots are meant to be configured via a BLE Central (e.g. nRF Beacon for Eddystone) which performs an ECDH key exchange and allows the beacon to generate the proper identity keys and EIDs for broadcast. Trying to set an EID frame in firmware will not achieve any security purposes since you do not receive the Central's public ECDH key this way.

Tony

RE: Eddystone EID-frame issue

Raj — Fri, 22 Apr 2016 14:06:54 GMT

I found the issue. In services_and_modules_init() function security module is initialized after initializing the advertising slots (eddystone_adv_slots_init()). So, if try to generate encrypted key for EID frame before initializing security module it leads to system restart. If I initialize advertising slots after security module init is working fine.

RE: Eddystone EID-frame issue

ketil — Fri, 22 Apr 2016 13:46:01 GMT

Hi Raj,

We are currently writing documentation for the nRF5 SDK for Eddystone firmware which will be available in the GitHub repository. It will be up by next week.