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55 Commits

Author SHA1 Message Date
Vladimir Komendantskiy 77ed1d50d4 separated crypto module into its own crate 2018-07-31 12:15:05 +01:00
Andreas Fackler 47c00016be Remove protobuf support. 2018-07-31 11:58:44 +02:00
c0gent 847a79793e
Replace `chain_error` with `failure` 
Changes:

* Remove `error_chain` and convert errors to `failure` types.
* Add variants for each possible error generation point.
 2018-07-30 15:14:19 -07:00
Andreas Fackler 9d0f1b3d15 Remove output and message queue from CommonSubset. 2018-07-24 13:12:06 +02:00
Andreas Fackler 466104bce6 Extend *honey_badger module docs. 2018-07-18 16:46:46 +02:00
Peter van Nostrand 53a891380f Replaced clear-on-drop with 'std::ptr::write_volatile'. 2018-07-13 20:58:30 -04:00
Marc Brinkmann 5336fbe707 Added `RandomAdversary` and the necessary auxiliary functions. 
Random adversaries are created for `broadcast` and `honey_badger`.  Random value generation was added for all type-dependencies of these algorithms, causing the `Rand` trait to be implement for a large portion of the codebase.

Additionally, `MessageWithSender` turned into an actual struct, making it much easier to handle. Tuple-like construction is still available through `MessageWithSender::new()`.
 2018-07-13 13:27:49 +02:00
Andreas Fackler c1b4381753 Separate queue from Honey Badger. 
This makes Honey Badger a bit more complicated but a lot more flexible:
It is now unaware of transactions and basically just runs one Subset
instance per epoch.

That way, users can use any kind of external queue, control throttling
and prioritization.
 2018-07-10 17:29:58 +02:00
Peter van Nostrand 6783ece9b0 Added faulty node logging to algorithms. 2018-07-09 13:45:11 -04:00
Andreas Fackler 2a30860bb0 Add agreement module-level docs. 2018-07-05 11:45:30 +02:00
Andreas Fackler daab0eb564 Add coin docs, change parity computation. 
This makes the signature parity computation take into account all bits,
not just the last one of each byte.
 2018-07-05 11:45:30 +02:00
Marc Brinkmann a6c920e88e Remove unused feature, allowing compilation on stable again. 
There is no evidence that [optin_builtin_traits](https://doc.rust-lang.org/beta/unstable-book/language-features/optin-builtin-traits.html) are used any longer (the keyword `auto` does not even show up in the codebase).

Removing this features allow compilation on stable Rust 1.27 and possible earlier versions.
 2018-07-01 18:09:21 +02:00
Andreas Fackler fd8e7a5900 Add DynamicHoneyBadger. 2018-06-26 15:13:04 +02:00
Andreas Fackler 7eb487f329 Implement SyncKeyGen. 
This is a _synchronous_ key generation algorithm. We will use it in
`DynamicHoneyBadger`, on top of `HoneyBadger` to satisfy the synchrony
requirements.

It can also be used independently e.g. on top of a blockchain.
 2018-06-22 10:06:29 +02:00
Peter van Nostrand 05da712c20 Added clear-on-drop secret-keys to 'NetworkInfo'. 2018-06-21 12:08:48 -04:00
Andreas Fackler 83f8d61402 Support serde by default. 
This removes the `serialization-serde` feature, since serde is already
used internally and therefore a dependency anyway.
 2018-06-20 10:21:52 +02:00
Andreas Fackler 3bf86453c3 Restructure crate-level docs, replace honest with correct. 2018-06-15 17:52:17 +02:00
Andreas Fackler e392f4c3af Add some crate-level documentation. 2018-06-14 17:44:43 +02:00
Vladimir Komendantskiy 17dc9df78e Common Coin module template; added keys in NetworkInfo 2018-06-13 15:09:12 +01:00
Andreas Fackler 6cc2302e61 Implement polynomials for distributed key generation. 2018-06-11 16:45:08 +02:00
Andreas Fackler 56ab6a5037 Simplify hash_g2. 2018-05-29 21:59:21 +02:00
Andreas Fackler 527b1c8c17 Use SHA256 and byteorder in hash_g2. 2018-05-29 17:59:50 +02:00
Andreas Fackler d999792234 Implement threshold signatures. 2018-05-29 17:06:02 +02:00
Peter van Nostrand 19b982284b Added error-chain error handling. 2018-05-20 07:51:33 -04:00
Andreas Fackler b8a2463d1c Extend tests and fix CommonSubset. 
Verify termination and more outputs.

`CommonSubset` now instantiates `Agreement` with the correct ID.
 2018-05-19 15:56:49 +02:00
Andreas Fackler 4164af1702 Generalize TestNetwork and test HoneyBadger. 2018-05-16 16:21:30 +02:00
Andreas Fackler b543b771a7 Rename util to fmt. 2018-05-15 08:31:13 +02:00
Andreas Fackler e2c66e9a0a Add optional serde support. 
If the feature "serialization-serde" is specified, protocol messages
implement serde's `Serialize` and `Deserialize` traits.

Close #18
 2018-05-14 18:32:59 +02:00
Andreas Fackler e8838f1491 Make protobuf support optional. 
Protobuf support is now only built if the feature
"serialization-protobuf" is enabled.

Close #19
 2018-05-14 17:29:04 +02:00
Andreas Fackler 38cdd596a2 Start implementing the top-level Honey Badger algorithm. 
This also contains a few fixes for the `common_subset` module:
* Rename `common_subset::Output` to `Message` to avoid confusing it
  with the value that the algorithm outputs as a result.
* Implement dispatch of messages to the right instance within
  `CommonSubset`, in a way that is transparent to the user.
 2018-05-12 16:09:07 +02:00
Andreas Fackler 36183b1e27 Simplify the message types. 2018-05-10 17:52:12 +02:00
Vladimir Komendantskiy 51ef11b55c fixed the count of matching AUX messages 2018-05-10 10:07:22 +01:00
Vladimir Komendantskiy e0005a672b removed the separate field in Agreement and corrected computation of estimated values 2018-05-10 10:07:22 +01:00
Vladimir Komendantskiy 394462c88b changed code according to review comments 2018-05-10 10:07:22 +01:00
Andreas Fackler eec3102cbf Move node to examples, deduplicate code. 2018-05-05 17:54:29 +02:00
Andreas Fackler 6117e11a9e applied rustfmt 2018-04-30 18:55:51 +03:00
Vladimir Komendantskiy eef846550f added the ACS algorithm with one clause not ready yet 2018-04-26 14:22:18 +01:00
Vladimir Komendantskiy d9bc81fe5f integration test of broadcast mostly ready; there is a thread termination issue however 2018-04-13 18:28:41 +01:00
Vladimir Komendantskiy efdb4467c5 added broadcast integration test concept 2018-04-12 17:17:33 +01:00
Vladimir Komendantskiy 40575402c8 replaced AsRef constraint by more precise Hashable and corrected doc example 2018-04-11 17:57:30 +01:00
Vladimir Komendantskiy 1105d15995 created an abstract interface to streaming serialised IO 2018-04-11 13:21:50 +01:00
Vladimir Komendantskiy fdb41d393f renamed Task -> CodecIo and added debug logging for root hashes 2018-04-06 16:04:28 +01:00
Vladimir Komendantskiy e9b0add188 removed redundant dependency on error_chain; corrected vector indices 2018-04-06 13:57:48 +01:00
Vladimir Komendantskiy 4cb80ee789 Introduced a local message delivery system as a solution to message broadcasts. 2018-04-05 13:09:46 +01:00
Vladimir Komendantskiy 6cbfbace1c using the select_loop macro instead of explicit Select application 2018-04-04 12:49:11 +01:00
Vladimir Komendantskiy 186a855d2f replaced lockable scoped channel variables with lock-free ones 2018-04-02 21:26:40 +01:00
Vladimir Komendantskiy e01a80dfa7 introduced a Connection struct and a procedure to start the network 2018-04-01 22:29:12 +01:00
Vladimir Komendantskiy d8c57280d3 decoder of broadcast value from Merkle tree leaves 2018-03-29 17:23:02 +01:00
Vladimir Komendantskiy 264b72011c added example of intended use of Node and a draft of value encryption 2018-03-27 21:59:38 +01:00
Vladimir Komendantskiy 1cdec3c39b broadcast algorithm drafted up to tree interpolation 2018-03-22 22:47:44 +00:00