103 Commits

Author SHA1 Message Date
Moxie Marlinspike
dadabdfaa8 Make UI responsive to UniversalTransport upgrades. 2014-01-06 14:36:23 -08:00
Moxie Marlinspike
c38a8aa699 Migrate to Curve25519.
1) Generate a Curve25519 identity key.

2) Use Curve25519 ephemerals and identities for v2 3DHE agreements.

3) Initiate v2 key exchange messages.

4) Accept v1 key exchange messages.

5) TOFU Curve25519 identities.
2014-01-06 14:36:22 -08:00
Moxie Marlinspike
dbc070cd65 Refactor the ciphertext message parsing and building. 2014-01-06 14:36:22 -08:00
Moxie Marlinspike
073b1f69e3 Rollbacks, v2 sms-transport key exchanges, push identity conflicts.
1) Stop protocol rollbacks.

2) Handle v2 version key exchange messages.

3) Handle identity key conflicts on prekeybundle messages.
2014-01-06 14:35:53 -08:00
Moxie Marlinspike
8f6590b738 Handle notifications and receiving push when locked. 2014-01-06 14:35:53 -08:00
Moxie Marlinspike
0dd36c64a4 Basic support for encrypted push-based attachments.
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.
2014-01-06 14:35:53 -08:00
Moxie Marlinspike
1bbcedabd4 Added SMS transport support for PreKeyBundle messages.
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.
2014-01-06 14:35:52 -08:00
Moxie Marlinspike
c3b8b62d32 Delete pre-key record when establishing agreement. 2014-01-06 14:35:52 -08:00
Moxie Marlinspike
43492b66c4 Rename EncryptedMessage 2014-01-06 14:35:52 -08:00
Moxie Marlinspike
7f642666dd Basic support for prekeybundle message delivery and receipt. 2014-01-06 14:35:52 -08:00
Moxie Marlinspike
1cc2762656 Refactor relationship between SessionCipher and Message. 2014-01-06 14:35:52 -08:00
Moxie Marlinspike
d1969412fb Move PreKey ids to be Mediums, generate in circular buffer. 2014-01-06 14:35:51 -08:00
Moxie Marlinspike
499de2d2bf Move prekey jsonifcation into the push code, add identity key. 2014-01-06 14:35:51 -08:00
Moxie Marlinspike
b8f663b69c Move common crypto classes into TextSecureLibrary.
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.
2014-01-06 14:35:51 -08:00
Moxie Marlinspike
2042ca6cb7 Generate "prekeys" at push registration time.
This generates a large number of key exchange messages and
registers them with the server during signup.
2014-01-06 14:34:47 -08:00
Moxie Marlinspike
9287d413ac Support for incoming attachments.
1) Refactored MMS layer to use abstracted types.

2) Added support for retrieving attachment IDs.
2014-01-06 14:33:52 -08:00
Moxie Marlinspike
1ac06312a0 Move directory and push service socket into library. 2014-01-06 14:21:50 -08:00
Moxie Marlinspike
a200d29514 Move most of Util into library 2014-01-06 14:21:50 -08:00
Moxie Marlinspike
21eee19380 Split into library project and add shared preferences layer of indirection. 2014-01-06 14:20:59 -08:00
Simeon Morgan
4931d7327b Switch to two-space indentation, remove inline comments. 2013-11-14 17:53:38 +11:00
Simeon Morgan
adfa3c1b10 Optimised use of buffers when decrypting to avoid unnecessary array copying properly. 2013-11-12 13:37:57 +11:00
Simeon Morgan
3cc6344c8b Optimised use of buffers when decrypting to avoid unnecessary array copying 2013-11-12 13:31:30 +11:00
Simeon Morgan
546dd5485c Fix issue #410: DecryptingPartInputStream could return more data than requested, causing segfaults in BitmapFactory on Android 4.4. 2013-11-12 12:57:47 +11:00
Moxie Marlinspike
f26b9070f2 Update PRNG fix code sample.
Google updated their code sample to account for restrictive
SELinux configurations on some devices.
2013-10-13 04:06:58 -07:00
Moxie Marlinspike
b14d9d84ad Fix for Android PRNG bug.
There is apparently an Android vulnerability with the PRNG it
provides through the JCE. This uses their suggested code to patch
the PRNG, and provides the option to regenerate identity keys.

http://android-developers.blogspot.com/2013/08/some-securerandom-thoughts.html
2013-08-15 11:27:14 -07:00
Moxie Marlinspike
8281ef18d4 Fix for ShortBufferException problem introduced in Android 4.3
Not really sure how it's possible for the system to give us an
extra block of data, but it does if both the input and output
buffers are sized the same during the first decrypt.  This
fixes things, but I wish I better understood why it was broken.
2013-08-10 09:09:00 -07:00
Moxie Marlinspike
d97252d8d6 Add ability to disable local encryption passphrase. 2013-07-01 10:15:36 -07:00
Moxie Marlinspike
288b416988 Fix NPEs 2013-06-25 13:20:29 -07:00
Moxie Marlinspike
8524cc5598 Resolved a few MMS issues.
1) Fixed the "Unsupported Encoding!" problem.

2) Workaround for the Sprint issue, where the MMSC is adding a single
   extra byte to the end of each encrypted message.

3) Fixed the "large blob of base64 text" on encrypted MMS problem.
2013-06-15 09:06:15 -07:00
Moxie Marlinspike
24fc93e9ae Switch to a more heavily TOFU model for identity keys.
1) There is no longer a concept of "verified" or "unverified."
   Only "what we saw last time" and "different from last time."

2) Let's eliminate "verify session," since we're all about
   identity keys now.

3) Mark manually processed key exchanges as processed.
2013-05-23 16:36:24 -07:00
Moxie Marlinspike
c86e414c5f Include (somehow missed) support for send/receive encrypted MMS. 2013-05-16 13:48:44 -07:00
Moxie Marlinspike
ad6760b62c Correctly handle deferred processing of key exchange message when locked. 2013-05-15 14:09:13 -07:00
Moxie Marlinspike
b1b9846971 merge liliakai-settings 2013-05-06 12:48:16 -07:00
Moxie Marlinspike
2305a648fb Minor refactoring 2013-05-06 08:40:55 -07:00
Moxie Marlinspike
e80882b83b Locally encrypted messages no longer show as ciphertext notifications. 2013-05-06 08:40:55 -07:00
Moxie Marlinspike
dd0aecc811 First cut at group messaging refactor. 2013-05-06 08:40:55 -07:00
Moxie Marlinspike
83e260436b Major storage layer refactoring to set the stage for clean GCM.
1) We now try to hand out cursors at a minimum.  There has always been
   a fairly clean insertion layer that handles encrypting message bodies,
   but the process of decrypting message bodies has always been less than
   ideal.  Here we introduce a "Reader" interface that will decrypt message
   bodies when appropriate and return objects that encapsulate record state.

   No more MessageDisplayHelper.  The MmsSmsDatabase interface is also more
   sane.

2) We finally rid ourselves of the technical debt associated with TextSecure's
   initial usage of the default SMS DB.  In that world, we weren't able to use
   anything other than the default "Inbox, Outbox, Sent" types to describe a
   message, and had to overload the message content itself with a set of
   local "prefixes" to describe what it was (encrypted, asymetric encrypted,
   remote encrypted, a key exchange, procssed key exchange), and so on.

   This includes a major schema update that transforms the "type" field into
   a bitmask that describes everything that used to be encoded in a prefix,
   and prefixes have been completely eliminated from the system.

   No more Prefix.java

3) Refactoring of the MultipartMessageHandler code.  It's less of a mess, and
   hopefully more clear as to what's going on.

The next step is to remove what we can from SmsTransportDetails and genericize
that interface for a GCM equivalent.
2013-05-06 08:40:55 -07:00
Moxie Marlinspike
303d1acd45 Initial client support for GCM message send/receive 2013-05-06 08:40:55 -07:00
Moxie Marlinspike
f2475491fe Fix for NPE on null encrypted MMS messages. 2013-04-23 14:49:32 -07:00
Lilia Markham
e3c5e837e1 Remove sign key exchange preference
Yet another setting that most users will never touch. Workaround for
those who would is to use a different identity key per device.

Let this be a sacrifice to the android settings design pattern gods.
2013-03-27 20:57:28 -07:00
Moxie Marlinspike
b05c840616 Fix for MMS send bug with an APN proxy. 2013-03-10 15:47:13 -07:00
Moxie Marlinspike
6230abb524 Add synchronized access to cache 2013-03-03 18:49:39 -08:00
Moxie Marlinspike
5eb04328d3 Improve passphrase and onboarding UI. Abstract out routing.
1) Update the create, prompt, and change passphrase activities.
   They are no longer dialog themed, and should look a little
   less ugly.

2) Update the import DB activity to be less ugly and more robust.

3) Abstract all of the state handling stuff out of
   ConversationListActivity.  This is now handled by RoutingActivity,
   which all launch intents move through.
2013-02-17 15:09:01 -08:00
Moxie Marlinspike
0a8c62e0e3 Include incoming message body in notifications.
1) Refactor the master secret reset logic to properly interact with
   services.

2) Add support for "BigText" and "Inbox" style notifications.

3) Decrypt message bodies when unlocked, display 'encrypted' when
   locked.
2013-02-08 16:27:43 -08:00
Moxie Marlinspike
bf92de394b Add support for resuming compose drafts. 2013-02-04 00:13:07 -08:00
Moxie Marlinspike
9939830551 Refactor recipient access.
1) Refactor recipient class to support asynchronous loading operations.

2) Refactor recipient factory to simplify recipient access.

3) Consoliate everything into one recipient provider that is capable of
doing async lookups and intelligent caching.
2012-12-24 08:40:37 -08:00
Moxie Marlinspike
93c0fffc31 We need to force plaintext on key exchange messages. 2012-10-29 20:53:04 -07:00
Moxie Marlinspike
3a8d29e279 Major reorganization of view/model interactions.
Mostly, the inheritance graph for MessageRecord/MmsMessageRecord was
all messed up, and each class was overloaded for things it shouldn't
have been.

1) Broke MessageRecord/MmsMessageRecord up into: DisplayRecord, ThreadRecord,
MessageRecord, SmsMessageRecord, NotificationMmsMessageRecord, and
MediaMmsMessageRecord.

2) Updated all the adapters/views to keep pace with that change.
2012-10-28 18:24:21 -07:00
Moxie Marlinspike
f743af32de javac wants us to be more explicit 2012-09-28 16:11:11 -07:00
Moxie Marlinspike
bb0ec65744 Include source origin in string key name.
This should help eliminate string duplicates, as well as provide
visibility into where strings in a resource file are being used.
2012-09-19 19:56:04 -07:00
Moxie Marlinspike
4c3b7cbe08 Extract TextSecure strings for i18n.
1) Change all instances which use concatenation to build strings
with variables in them to use string formatting instead.

2) Extract all string literals from layouts and menus into strings.xml

3) Extract all string literals from code into strings.xml
2012-09-07 21:19:37 -07:00
Moxie Marlinspike
b377fe84df New design for Conversation Activity.
1) Move to Fragments for the list view.
2) Switch to CursorLoader from my jankey self-managed cursor.
3) Add session security logic to the ActionBar.
4) Fix colors to be less ugly.
2012-07-19 14:22:03 -07:00
Moxie Marlinspike
bbea3fe1b1 Initial Project Import 2011-12-20 10:20:44 -08:00