1) Move the attachment structures into the encrypted message body.
2) Encrypt attachments with symmetric keys transmitted in the
encryptd attachment pointer structure.
3) Correctly handle asynchronous decryption and categorization of
encrypted push messages.
TODO: Correct notification process and network/interruption
retries.
1) Add encryption support for the transport layer. This obscures
metadata from the push messaging provider.
2) Better support the direction multiple destination messages is
headed (one unique message per recipient).
1) Added SMS transport support.
2) Keep track of whether a PreKeyBundle message has gotten
a response, and send them as subsequent messages until
one has been received.
1) Move all the crypto classes from securesms.crypto.
2) Move all the crypto storage from securesms.database.keys
3) Replace the old imported BC code with spongycastle.
1) Make the radio change a synchronous action with a timeout.
2) Move the send logic into an MmsTransport, in preparation for
UniversalTransport composition.
3) Move the download logic into a synchronous receiver.
On Jelly Bean and above:
- Use the standard notification style for a better and consistent visual
appearance
- Use the JB notification actions API for the locking action
- Use a lower notification priority to prioritize other notifications
over TextSecure
On ICS:
- Use the existing custom notification layout
Everywhere:
- Allow opening the app itself from the notification
- Simplify strings: don't talk about a "cached passphrase" but about the
app being "unlocked"/"locked"
Messages that are not "secure" (encrypted or key exchange) are
automatically marked as read if TextSecure isn't the default
KitKat SMS app.
This change in functionality allows people who aren't using
TextSecure as a default SMS app on KitKat to still receive
notifications when they get incoming encrypted messages.
1) The system does actually enforce having a BROADCAST_SMS
permission on the SMS receiver. Break out the "delivered"
parts of this into a separate Receiver, so the permission
won't trip up GB devices.
2) The system does actually enforce having "quick response"
intents. Add a no-op for now.
3) Add a "make default" prompt.
4) Update settings to reflect what's going on in KitKat.
