[Standards] Disappearing timers for OMEMO proposal

Florian Schmaus flo at geekplace.eu
Sat May 12 08:45:49 UTC 2018


On 12.05.2018 10:14, Alexander Krotov wrote:
> On Fri, May 11, 2018 at 10:24:35AM +0200, W. Martin Borgert wrote:
>> Quoting Alexander Krotov <ilabdsf at gmail.com>:
>> Therefore it is orthogonal to any encryption and it does also not
>> matter, whether your peer or one of your peers devices or resources
>> does implement the feature or not. No need to check. As sender, just
>> use the timers and let the problem of deleting messages to the
>> recipient.
> 
> I want to be able to advertise to my contacts which of my devices
> support timers, so devices that don't support them are not able to
> decrypt the message.

What prevents ("malicious") devices from announcing the feature and not
deleting the message afterwards? What do you gain from coupling
encryption and timers?

I feel like the answer is "next to nothing" but I'm happy to be told
otherwise.

- Florian

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