Android and iOS don't allow you to specify the keys used by BLE's native encryption, but there is nothing stopping you using BLE as an insecure transport and implementing your own encryption on top of it (well apart from time, skill, and flash & RAM constraints). If you did that you would be able to use whatever keys you wanted because you implemented it.
On 2 December 2016 at 18:49, Rodrigo Lorenzo Leal <rodrigoelore...@gmail.com > wrote: > Well those are bad news I guess. > > Tim, sorry to be so persisten with this but again, if neither Android nor > iOS allow you to specify your own keys, how can you use pre-shared keys? > > If I understood correctly, I can install a unique key on each device at > manufacture and keep a copy of it in the cloud. And you said that this will > give me an out-of-the-box secure channel. > > 2016-12-02 19:22 GMT+01:00 Tim Hutt <tdh...@gmail.com>: > > > On 2 December 2016 at 17:09, Christopher Collins <ccoll...@apache.org> > > wrote: > > > > > Sorry if I missed this earlier in the thread, but will iOS really let > > > you use an external key for BLE encryption? Just based on my limited > > > experience with CoreBluetooth, I wouldn't expect this functionality to > > > be exposed. > > > > > > > You are correct. Neither Android nor iOS allow you to specify your own > > keys. > > > > > > -- > Rodrigo Lorenzo Leal >
