Commit Graph

205 Commits

Author SHA1 Message Date
akwizgran
d7f204019d Merge branch 'use-xsalsa20-poly1305' into 'master'
Use XSalsa20-Poly1305 instead of AES-GCM for transport encryption and password storage.

This patch integrates @str4d's new authenticated cipher implementation. It depends on !18.

See merge request !35
2015-12-28 18:07:20 +00:00
str4d
efa7ac00ea Merge branch '190-key-manager-duplicates' into 'master'
Fix off-by-one error in key rotation

Fixes #190.

See merge request !32
2015-12-23 19:41:21 +00:00
akwizgran
fc897bd1b9 Use XSalsa20-Poly1305 instead of AES-GCM. #111 2015-12-18 16:47:01 +00:00
akwizgran
e6eb1707a9 Set STREAM_HEADER_IV_LENGTH to 24 to match spec. 2015-12-18 13:34:02 +00:00
akwizgran
f2efe7f2ea Implement stream header for BTPv2. #111 2015-12-18 13:34:02 +00:00
akwizgran
aab62aaffc Added sanity checks to catch bugs like #190. 2015-12-18 11:31:11 +00:00
akwizgran
351e1bbbe6 Facade for forum post headers. #172 2015-12-17 16:56:58 +00:00
akwizgran
f899bc0c38 Facade for private message headers. #173 2015-12-17 16:56:58 +00:00
akwizgran
87689855da Facades for private messaging. #173 2015-12-17 16:56:58 +00:00
akwizgran
4450ab171a Facades for forums. #172 2015-12-17 16:56:58 +00:00
akwizgran
c5282c5b17 Moved some API classes into packages. 2015-12-17 16:56:57 +00:00
akwizgran
9fbdb08cf1 Created interfaces for use by UI. #172 #173 2015-12-17 16:56:57 +00:00
Torsten Grote
2d28dcada2 Create two new events to signal enabling and disabling of transports 2015-12-17 11:34:10 -02:00
akwizgran
e9226dc8e2 Fixed some missing imports from recent refactoring. 2015-12-16 12:50:17 +00:00
akwizgran
6e61504d24 Removed message expiry code. #180 2015-12-16 12:17:38 +00:00
akwizgran
2ca2356ecc Moved MessageHeader to sync package. 2015-12-15 15:05:16 +00:00
akwizgran
e370cafb12 Moved classes from messaging package to sync package. 2015-12-15 15:05:06 +00:00
akwizgran
e7e7bf35ea Use 'forum' instead of 'group'. #174 2015-12-15 13:23:52 +00:00
akwizgran
9868feeb2a Refactor KeyManager and TagRecogniser. #55 2015-12-14 11:02:49 +00:00
akwizgran
912ba394c5 Refactored FileUtils.
Removed methods that are no longer needed for Java 6, moved the remaining method into the utils directory.
2015-12-10 15:58:52 +00:00
Torsten Grote
aa7d7642bf make message status persistent and initialize it from database 2015-12-10 11:25:41 -02:00
Torsten Grote
0a8c42b939 Improve how the status of messages is indicated.
Remove the Toast that always says 'Message Sent' and show graphical
indicators instead that show either:
* message is waiting to be sent
* message was sent (or requested)
* message was delivered
2015-12-10 10:11:27 -02:00
Ernir Erlingsson
a5fd7ff9dc Added dependency injections for FileUtils and removed redundant code 2015-12-10 11:07:10 +01:00
akwizgran
027ae8340f Whitespace-only code formatting changes. 2015-11-30 09:38:25 +00:00
akwizgran
41c4c4d808 Renamed raw data type. 2015-05-02 21:05:23 +01:00
akwizgran
b8e37a5421 Renamed serial component to data, moved consumers to briar-core. 2015-05-02 20:39:24 +01:00
akwizgran
416719e3d9 Removed silly SerialComponent interface. 2015-05-02 20:30:25 +01:00
akwizgran
32c9ce50d9 Moved the messaging protocol one step closer to BSP.
This breaks backward compatibility for the wire protocol and messages
stored in the database. The database schema version has been
incremented.
2015-05-01 16:59:27 +01:00
akwizgran
dea5a44724 Simpler forum sharing UX. 2015-04-29 15:08:58 +01:00
akwizgran
7fbad8dc26 Use FortunaGenerator to implement PseudoRandom. 2015-01-14 20:46:03 +00:00
akwizgran
920c81199e Forgot to update some constants to reflect the new crypto primitives. 2015-01-14 16:38:15 +00:00
akwizgran
112d80420c Downgrade to 256-bit curve for performance.
Also reduced hash function to 256 bits because our target security level
is now 128 bits.
2015-01-09 13:23:44 +00:00
akwizgran
5d46d3a4b4 AuthenticatedCipher interface isn't needed outside crypto package. 2015-01-09 13:06:44 +00:00
akwizgran
dc5e37a96d Remove AAD from AuthenticatedCipher interface. 2015-01-09 13:01:02 +00:00
akwizgran
4e57029d98 Use constant-time GCM multiplier. 2015-01-06 19:30:11 +00:00
akwizgran
1f69f0d2f6 Variable-length frames (untested). 2015-01-05 17:35:45 +00:00
akwizgran
d3bf2d59a1 Use the same maximum frame length for all transports. 2015-01-05 16:24:44 +00:00
akwizgran
358166bc12 Don't try to erase secrets from memory.
1. The things we're really trying to protect - contact identities,
message contents, etc - can't be erased from memory because they're
encapsulated inside objects we don't control.

2. Long-term secrets can't be protected by erasing them from memory
because they're stored in the database and the database key has to be
held in memory whenever the app's running.

3. If the runtime uses a compacting garbage collector then we have no
way to ensure an object is erased from memory.

4. Trying to erase secrets from memory makes the code more complex.

Conclusion: Let's not try to protect secrets from an attacker who can
read arbitrary memory locations.
2014-12-29 21:08:27 +00:00
akwizgran
f316d64afa Moved stream crypto to crypto component. 2014-12-29 19:55:05 +00:00
akwizgran
388b36b6be Check periodically for retransmittable packets. Bug #46. 2014-12-14 20:26:41 +00:00
akwizgran
29a6596ee3 Use the transport's idle timeout, not a hardcoded value. 2014-12-14 15:18:39 +00:00
akwizgran
d4fa656dbb Application layer keepalives to detect dead TCP connections.
DuplexOutgoingSession flushes its output stream if it's idle for a
transport-defined interval, causing an empty frame to be sent. The TCP
and Tor plugins use a socket timeout equal to twice the idle interval to
detect dead connections.

See bugs #27, #46 and #60.
2014-12-13 12:00:40 +00:00
akwizgran
9dbabdeceb Document the contract of DatabaseExecutor. 2014-11-08 16:40:22 +00:00
akwizgran
4009561996 Refactored PluginManager and Poller to remove non-open calls. Bug #15. 2014-11-08 15:40:51 +00:00
akwizgran
1f4d801162 Interrupt all messaging sessions when the app starts shutting down.
This makes it more likely that connections will be closed cleanly.
However, the interrupt() method is currently ineffective for incoming
sessions as it won't interrupt a blocking read, e.g. when the packet
reader is waiting for a packet.
2014-11-06 08:24:08 +00:00
akwizgran
852a618cb3 Interrupt messaging session if contact or transport is removed. 2014-11-06 08:10:29 +00:00
akwizgran
c202b6f0ac Renamed ConnectionManager to ConnectionDispatcher.
Because that's what it does.
2014-11-05 19:47:54 +00:00
akwizgran
4ca83842d1 Moved ConnectionDispatcher and ConnectionRegistry to plugins package. 2014-11-05 19:40:07 +00:00
akwizgran
26d93b83b4 Factored out StreamReader/Writer from messaging layer. 2014-11-05 19:22:01 +00:00
akwizgran
5b8eab6035 Interrupt the other side of a duplex connection if an exception occurs. 2014-11-05 18:28:05 +00:00