[Standards] OMEMO and Olm

Dave Cridland dave at cridland.net
Sat May 27 14:41:33 UTC 2017


On 27 May 2017 at 09:29, Daniel Gultsch <daniel at gultsch.de> wrote:
>
>
> 2017-05-27 2:27 GMT+02:00 Remko Tronçon <remko at el-tramo.be>:
>>
>> On Fri, 26 May 2017 at 19:29, Philipp Hörist <philipp at hoerist.com> wrote:
>>>
>>> We can make everyone happy, if we just ask around and find someone that
>>> is
>>> willing to add XEdDSA to OLM.
>>
>>
>> Not everyone. I won't be happy until one can easily make an independent
>> implementation of this XEP. For me, this means it needs to be built on
>> generally available crypto primitives.
>>
>> Concretely, this means 1 of 2 possibilities (as stated earlier):
>>
>> - Keep the current XEP (i.e. Olm as it is today). It is trivial to
>> implement
>> independently today, with several alternatives of crypto libraries. It
>> just
>> needs to be specified properly (split identity keys).
>> - We change the XEP to use XEdDsa, and someone gets an implementation into
>> an (peer reviewed and preferably established) crypto library,
>> *independent*
>> of libolm.
>>
>> The second path is more work, uncertain, and will take time. But if this
>> is
>> a price we want to make to keep the current (4?) OMEMO clients happy, then
>> so be it.
>
> 5 Clients. Dino is perfectly capable of sending and receiving messages. It
> just lacks a trust UI.
>
> 6 Clients if you count profanity which is also able to send and receive
> messages but seems abandoned right now and never got around to implement a
> Trust interface. Nonetheless it is a good starting ground if someone wants
> to take over.
>

And every single one based on the same library?

> And a smack plugin which will upon the gate for other clients. At least one
> of which (Zom) is actively being worked on.

You think Zom will introduce OMEMO? I seriously doubt that's possible
in the current state of affairs.

>
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