[messaging] encryption of Signal notification messages

[Ali Aydin Selcuk]

Dear all,

My colleague Halil Taskin noticed a feature of Signal which wasn't there in
TextSecure:

Message contents are visible from the notification bar, which should be
transmitted over Google's or Apple's push notification servers.

We just can't see how this is compatible with the end-to-end encryption
feature of Signal.

Are we missing something, or is there something fundamentally wrong here?

Thanks,

Ali

ps. BTW, the question applies to how Whatsapp uses TextSecure too.

--
Ali Aydın Selçuk
Dept. of Computer Engineering
TOBB-ETU
06560, Ankara, Turkey
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