[messaging] encryption of Signal notification messages

[Tony Arcieri]

>
> If the recipient can decrypt and authenticate your messages, you cannot
>> have any guarantees around this.
>>
>
> Actually you do - this is where the deniability inherent in Axolotl plays
> a role. The recipient can authenticate the message, but no one else can.
> From anyone else's perspective the message is just as likely fake as
> real.


You missed the point: the intended use case was "If the recipient can
decrypt and authenticate your messages"

All that said: the sender can potentially provide a flag as to whether or
not they would prefer a plaintext decrypt be displayed. This can't be
enforced by cryptography, but Signal could attempt to honor such a flag.

-- 
Tony Arcieri
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