* adds an RNG argument to the transaction queue
* minimal support of transaction queue RNG in tests
* added the TransactionQueue trait object
* review comments and streamlining of trait bounds
* removed the RNG from the transaction Q and placed it into QueueingHoneyBadger
* formatting fix
* Add support for RNG instantiation in proptests.
* Use `proptest` module strategy to create the rng for `net_dynamic_honey_badger`.
* Use seed generation instead of RNG instantiation in tests.
* Remove fixed RNG in `generate_map`.
* `VirtualNet` now supports setting the random generator through the builder.
* Add missing `time_limit` field to `::std::fmt::Debug` trait implementation on `NetBuilder`.
* Pass an instantiated random number generator through `NewNodeInfo` as a convenience.
* Make the random number generator of `DynamicHoneyBadgerBuilder` configurable, at the cost of now requiring mutability to call `build_first_node()`.
* Ensure RNGs are derive from passed in seed in `net_dynamic_hb` tests.
* Correct inappropriate use of `random::Random` instead of `Rng::gen` to generate dependent values in `binary_agreement`.
The original implementation used `rand::random()`, which will always use the `thread_rng`, ignoring the fact that an RNG has actually been passed in.
* Do not use `OsRng` but passed in RNG instead.
* Use reference/non-reference passing of rngs more in line with the `rand` crates conventions.
* Document `rng` field on `DynamicHoneyBadger`.
* Make `SyncKeyGen` work with the extend (`encrypt_with_rng`) API of `threshold_crypto`.
* Use passed-in random number generator in `HoneyBadger`.
* Create `SubRng` crate in new `util` module to replace `create_rng()`.
* Use an RNG seeded from the configure RNG when reinitializing `DynamicHoneyBadger`.
* Use the correct branch of `threshold_crypto` with support for passing RNGs.
* spam protection part 1: remote epoch tracking in HoneyBadger
* moved handling of EpochStarted out of EpochState
* allowed EpochStarted from observers
* removed an unnecessary function call
* updated formatting to beta
* removed an unnecessary variable
* Move `CoinState` and `Agreement` definitions from `agreement/mod.rs`
to `.../agreement.rs`.
* Move `DynamicHoneyBadger` definition from `dynamic_honey_badger/mod.rs`
to `.../dynamic_honey_badger.rs`.
This removes some unnecessary allocation and conversion by accepting
more primitive types and references as the index in threshold decryption
and signing, and as the argument to a polynomial.
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()`.
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.