[guardian-dev] ChatSecure

Lee Azzarello lee at rockingtiger.com
Sun Aug 25 18:34:54 EDT 2013


Is the privilege escalation of a "VoIP app" a compelling reason to get
voice and video calling into Chatsecure sooner?

-lee
On Aug 23, 2013 9:38 AM, "Nathan of Guardian" <nathan at guardianproject.info>
wrote:

>
>
> Lee Azzarello <lee at guardianproject.info> wrote:
> >Is this true? I've never actually used ChatSecure because I don't
> >carry around my iPhone.
> >
> >"For instance, iOS apps like Silent Circle and ChatSecure provide
> >forward secrecy, but are synchronous messaging systems that only
> >function when the app is in the foreground. If someone sends you a
> >message after the app has been out of the foreground for two minutes,
> >you just don’t get the message."
> >
> >https://whispersystems.org/blog/asynchronous-security/
> >
>
> I think it is 10 minutes, but generally yes. iOS only allows long running
> background services if your are "VoIP app" (in quotes because I am not sure
> how they define VoIP app).
>
> Chris B has a design for a ChatSecure Push service, that would essentially
> tell the app to wakeup if someone is trying to message them, and then it
> could pull messages from a server side xmpp message queue, OR the push
> could actually content the message itself. We could easily make this
> interop with ChatSecure Android users.
>
> Also, I think iOS 7 changes some things wrt to background apps, but I am
> not entirely sure how.
>
> +n
> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>
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