Commit graph

67 commits

Author SHA1 Message Date
Luke Parker
1c5bc2259e Dedicated crate for the Schnorr contract 2024-09-19 23:36:32 -07:00
Luke Parker
239127aae5 Add crate for the Ethereum contracts 2024-09-19 23:36:32 -07:00
Luke Parker
d9543bee40 Move ethereum-serai under the processor
It isn't generally usable and should be directly integrated at this point.
2024-09-19 23:36:32 -07:00
Luke Parker
72a18bf8bb Smart Contract Scheduler 2024-09-19 23:36:32 -07:00
Luke Parker
8380653855 Add empty serai-processor-signers library
This will replace the signers still in the monolithic Processor binary.
2024-09-19 23:36:32 -07:00
Luke Parker
b50b889918 Split processor into bitcoin-processor, ethereum-processor, monero-processor 2024-09-19 23:36:32 -07:00
Luke Parker
6e9cb74022 Add non-transaction-chaining scheduler 2024-09-19 23:36:32 -07:00
Luke Parker
fadc88d2ad Add scheduler-primitives
The main benefit is whatever scheduler is in use, we now have a single API to
receive TXs to sign (which is of value to the TX signer crate we'll inevitably
build).
2024-09-19 23:36:32 -07:00
Luke Parker
bd277e7032 Add processor/scheduler/utxo/primitives
Includes the necessary signing functions and the fee amortization logic.

Moves transaction-chaining to utxo/transaction-chaining.
2024-09-19 23:36:32 -07:00
Luke Parker
fc765bb9e0 Add crate for the transaction-chaining Scheduler 2024-09-19 23:36:32 -07:00
Luke Parker
1e8a9ec5bd Smash out the signer
Abstract, to be done for the transactions, the batches, the cosigns, the slash
reports, everything. It has a minimal API itself, intending to be as clear as
possible.
2024-09-19 23:36:32 -07:00
Luke Parker
f3b91bd44f Smash key-gen into independent crate 2024-09-19 23:36:32 -07:00
Luke Parker
e4e4245ee3
One Round DKG (#589)
* Upstream GBP, divisor, circuit abstraction, and EC gadgets from FCMP++

* Initial eVRF implementation

Not quite done yet. It needs to communicate the resulting points and proofs to
extract them from the Pedersen Commitments in order to return those, and then
be tested.

* Add the openings of the PCs to the eVRF as necessary

* Add implementation of secq256k1

* Make DKG Encryption a bit more flexible

No longer requires the use of an EncryptionKeyMessage, and allows pre-defined
keys for encryption.

* Make NUM_BITS an argument for the field macro

* Have the eVRF take a Zeroizing private key

* Initial eVRF-based DKG

* Add embedwards25519 curve

* Inline the eVRF into the DKG library

Due to how we're handling share encryption, we'd either need two circuits or to
dedicate this circuit to the DKG. The latter makes sense at this time.

* Add documentation to the eVRF-based DKG

* Add paragraph claiming robustness

* Update to the new eVRF proof

* Finish routing the eVRF functionality

Still needs errors and serialization, along with a few other TODOs.

* Add initial eVRF DKG test

* Improve eVRF DKG

Updates how we calculcate verification shares, improves performance when
extracting multiple sets of keys, and adds more to the test for it.

* Start using a proper error for the eVRF DKG

* Resolve various TODOs

Supports recovering multiple key shares from the eVRF DKG.

Inlines two loops to save 2**16 iterations.

Adds support for creating a constant time representation of scalars < NUM_BITS.

* Ban zero ECDH keys, document non-zero requirements

* Implement eVRF traits, all the way up to the DKG, for secp256k1/ed25519

* Add Ristretto eVRF trait impls

* Support participating multiple times in the eVRF DKG

* Only participate once per key, not once per key share

* Rewrite processor key-gen around the eVRF DKG

Still a WIP.

* Finish routing the new key gen in the processor

Doesn't touch the tests, coordinator, nor Substrate yet.
`cargo +nightly fmt && cargo +nightly-2024-07-01 clippy --all-features -p serai-processor`
does pass.

* Deduplicate and better document in processor key_gen

* Update serai-processor tests to the new key gen

* Correct amount of yx coefficients, get processor key gen test to pass

* Add embedded elliptic curve keys to Substrate

* Update processor key gen tests to the eVRF DKG

* Have set_keys take signature_participants, not removed_participants

Now no one is removed from the DKG. Only `t` people publish the key however.

Uses a BitVec for an efficient encoding of the participants.

* Update the coordinator binary for the new DKG

This does not yet update any tests.

* Add sensible Debug to key_gen::[Processor, Coordinator]Message

* Have the DKG explicitly declare how to interpolate its shares

Removes the hack for MuSig where we multiply keys by the inverse of their
lagrange interpolation factor.

* Replace Interpolation::None with Interpolation::Constant

Allows the MuSig DKG to keep the secret share as the original private key,
enabling deriving FROST nonces consistently regardless of the MuSig context.

* Get coordinator tests to pass

* Update spec to the new DKG

* Get clippy to pass across the repo

* cargo machete

* Add an extra sleep to ensure expected ordering of `Participation`s

* Update orchestration

* Remove bad panic in coordinator

It expected ConfirmationShare to be n-of-n, not t-of-n.

* Improve documentation on  functions

* Update TX size limit

We now no longer have to support the ridiculous case of having 49 DKG
participations within a 101-of-150 DKG. It does remain quite high due to
needing to _sign_ so many times. It'd may be optimal for parties with multiple
key shares to independently send their preprocesses/shares (despite the
overhead that'll cause with signatures and the transaction structure).

* Correct error in the Processor spec document

* Update a few comments in the validator-sets pallet

* Send/Recv Participation one at a time

Sending all, then attempting to receive all in an expected order, wasn't working
even with notable delays between sending messages. This points to the mempool
not working as expected...

* Correct ThresholdKeys serialization in modular-frost test

* Updating existing TX size limit test for the new DKG parameters

* Increase time allowed for the DKG on the GH CI

* Correct construction of signature_participants in serai-client tests

Fault identified by akil.

* Further contextualize DkgConfirmer by ValidatorSet

Caught by a safety check we wouldn't reuse preprocesses across messages. That
raises the question of we were prior reusing preprocesses (reusing keys)?
Except that'd have caused a variety of signing failures (suggesting we had some
staggered timing avoiding it in practice but yes, this was possible in theory).

* Add necessary calls to set_embedded_elliptic_curve_key in coordinator set rotation tests

* Correct shimmed setting of a secq256k1 key

* cargo fmt

* Don't use `[0; 32]` for the embedded keys in the coordinator rotation test

The key_gen function expects the random values already decided.

* Big-endian secq256k1 scalars

Also restores the prior, safer, Encryption::register function.
2024-09-19 21:43:26 -04:00
Luke Parker
c1a9256cc5
dockertest 0.5, correct errors from prior update commit 2024-09-05 23:31:45 -04:00
akildemir
a506d74d69
move economic security into it's own pallet (#596)
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* move economic security into it's own pallet

* fix deny

* Update Cargo.toml, .github for the new crates

* Remove unused import

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2024-08-31 18:55:42 -04:00
akildemir
cccc1fc7e6
Implement block emissions (#551)
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* add genesis liquidity implementation

* add missing deposit event

* fix CI issues

* minor fixes

* make math safer

* fix fmt

* implement block emissions

* make remove liquidity an authorized call

* implement setting initial values for coins

* add genesis liquidity test & misc fixes

* updato develop latest

* fix rotation test

* fix licencing

* add fast-epoch feature

* only create the pool when adding liquidity first time

* add initial reward era test

* test whole pre ec security emissions

* fix clippy

* add swap-to-staked-sri feature

* rebase changes

* fix tests

* Remove accidentally commited ETH ABI files

* fix some pr comments

* Finish up fixing pr comments

* exclude SRI from is_allowed check

* Misc changes

---------

Co-authored-by: akildemir <aeg_asd@hotmail.com>
Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2024-08-14 23:12:04 -04:00
Luke Parker
6f34c2ff77
Remove unused git allowance for monero-rs
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2024-07-19 23:51:05 -04:00
akildemir
1493f49416
Implement genesis liquidity protocol (#545)
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* add genesis liquidity implementation

* add missing deposit event

* fix CI issues

* minor fixes

* make math safer

* fix fmt

* make remove liquidity an authorized call

* implement setting initial values for coins

* add genesis liquidity test & misc fixes

* updato develop latest

* fix rotation test

* Finish merging develop

* Remove accidentally committed ETH files

* fix pr comments

* further bug fixes

* fix last pr comments

* tidy up

* Misc

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2024-07-18 19:30:19 -04:00
Luke Parker
8ab6f9c36e
alloy 0.1
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2024-06-19 12:39:47 -04:00
Luke Parker
1d2beb3ee4
Ethereum relayer server
Causes send test to pass for the processor.
2024-05-22 18:50:11 -04:00
Luke Parker
d27d93480a
Get processor signer/wallet tests working for Ethereum
They are handicapped by the fact Ethereum self-sends don't show up as outputs,
yet that's fundamental (unless we add a *harmful* fallback function).
2024-05-11 00:11:14 -04:00
Luke Parker
0f0db14f05
Ethereum Integration (#557)
* Clean up Ethereum

* Consistent contract address for deployed contracts

* Flesh out Router a bit

* Add a Deployer for DoS-less deployment

* Implement Router-finding

* Use CREATE2 helper present in ethers

* Move from CREATE2 to CREATE

Bit more streamlined for our use case.

* Document ethereum-serai

* Tidy tests a bit

* Test updateSeraiKey

* Use encodePacked for updateSeraiKey

* Take in the block hash to read state during

* Add a Sandbox contract to the Ethereum integration

* Add retrieval of transfers from Ethereum

* Add inInstruction function to the Router

* Augment our handling of InInstructions events with a check the transfer event also exists

* Have the Deployer error upon failed deployments

* Add --via-ir

* Make get_transaction test-only

We only used it to get transactions to confirm the resolution of Eventualities.
Eventualities need to be modularized. By introducing the dedicated
confirm_completion function, we remove the need for a non-test get_transaction
AND begin this modularization (by no longer explicitly grabbing a transaction
to check with).

* Modularize Eventuality

Almost fully-deprecates the Transaction trait for Completion. Replaces
Transaction ID with Claim.

* Modularize the Scheduler behind a trait

* Add an extremely basic account Scheduler

* Add nonce uses, key rotation to the account scheduler

* Only report the account Scheduler empty after transferring keys

Also ban payments to the branch/change/forward addresses.

* Make fns reliant on state test-only

* Start of an Ethereum integration for the processor

* Add a session to the Router to prevent updateSeraiKey replaying

This would only happen if an old key was rotated to again, which would require
n-of-n collusion (already ridiculous and a valid fault attributable event). It
just clarifies the formal arguments.

* Add a RouterCommand + SignMachine for producing it to coins/ethereum

* Ethereum which compiles

* Have branch/change/forward return an option

Also defines a UtxoNetwork extension trait for MAX_INPUTS.

* Make external_address exclusively a test fn

* Move the "account" scheduler to "smart contract"

* Remove ABI artifact

* Move refund/forward Plan creation into the Processor

We create forward Plans in the scan path, and need to know their exact fees in
the scan path. This requires adding a somewhat wonky shim_forward_plan method
so we can obtain a Plan equivalent to the actual forward Plan for fee reasons,
yet don't expect it to be the actual forward Plan (which may be distinct if
the Plan pulls from the global state, such as with a nonce).

Also properly types a Scheduler addendum such that the SC scheduler isn't
cramming the nonce to use into the N::Output type.

* Flesh out the Ethereum integration more

* Two commits ago, into the **Scheduler, not Processor

* Remove misc TODOs in SC Scheduler

* Add constructor to RouterCommandMachine

* RouterCommand read, pairing with the prior added write

* Further add serialization methods

* Have the Router's key included with the InInstruction

This does not use the key at the time of the event. This uses the key at the
end of the block for the event. Its much simpler than getting the full event
streams for each, checking when they interlace.

This does not read the state. Every block, this makes a request for every
single key update and simply chooses the last one. This allows pruning state,
only keeping the event tree. Ideally, we'd also introduce a cache to reduce the
cost of the filter (small in events yielded, long in blocks searched).

Since Serai doesn't have any forwarding TXs, nor Branches, nor change, all of
our Plans should solely have payments out, and there's no expectation of a Plan
being made under one key broken by it being received by another key.

* Add read/write to InInstruction

* Abstract the ABI for Call/OutInstruction in ethereum-serai

* Fill out signable_transaction for Ethereum

* Move ethereum-serai to alloy

Resolves #331.

* Use the opaque sol macro instead of generated files

* Move the processor over to the now-alloy-based ethereum-serai

* Use the ecrecover provided by alloy

* Have the SC use nonce for rotation, not session (an independent nonce which wasn't synchronized)

* Always use the latest keys for SC scheduled plans

* get_eventuality_completions for Ethereum

* Finish fleshing out the processor Ethereum integration as needed for serai-processor tests

This doesn't not support any actual deployments, not even the ones simulated by
serai-processor-docker-tests.

* Add alloy-simple-request-transport to the GH workflows

* cargo update

* Clarify a few comments and make one check more robust

* Use a string for 27.0 in .github

* Remove optional from no-longer-optional dependencies in processor

* Add alloy to git deny exception

* Fix no longer optional specification in processor's binaries feature

* Use a version of foundry from 2024

* Correct fetching Bitcoin TXs in the processor docker tests

* Update rustls to resolve RUSTSEC warnings

* Use the monthly nightly foundry, not the deleted daily nightly
2024-04-21 06:02:12 -04:00
Luke Parker
337e54c672
Redo Dockerfile generation (#530)
Moves from concatted Dockerfiles to pseudo-templated Dockerfiles via a dedicated Rust program.

Removes the unmaintained kubernetes, not because we shouldn't have/use it, but because it's unmaintained and needs to be reworked before it's present again.

Replaces the compose with the work in the new orchestrator binary which spawns everything as expected. While this arguably re-invents the wheel, it correctly manages secrets and handles the variadic Dockerfiles.

Also adds an unrelated patch for zstd and simplifies running services a bit by greater utilizing the existing infrastructure.

---

* Delete all Dockerfile fragments, add new orchestator to generate Dockerfiles

Enables greater templating.

Also delete the unmaintained kubernetes folder *for now*. This should be
restored in the future.

* Use Dockerfiles from the orchestator

* Ignore Dockerfiles in the git repo

* Remove CI job to check Dockerfiles are as expected now that they're no longer committed

* Remove old Dockerfiles from repo

* Use Debian for monero-wallet-rpc

* Remove replace_cmds for proper usage of entry-dev

Consolidates ports a bit.

Updates serai-docker-tests from "compose" to "build".

* Only write a new dockerfile if it's distinct

Preserves the updated time metadata.

* Update serai-docker-tests

* Correct the path Dockerfiles are built from

* Correct inclusion of orchestration folder in Docker builds

* Correct debug/release flagging in the cargo command

Apparently, --debug isn't an effective NOP yet an error.

* Correct path used to run the Serai node within a Dockerfile

* Correct path in Monero Dockerfile

* Attempt storing monerod in /usr/bin

* Use sudo to move into /usr/bin in CI

* Correct 18.3.0 to 18.3.1

* Escape * with quotes

* Update deny.toml, ADD orchestration in runtime Dockerfile

* Add --detach to the Monero GH CI

* Diversify dockerfiles by network

* Fixes to network-diversified orchestration

* Bitcoin and Monero testnet scripts

* Permissions and tweaks

* Flatten scripts folders

* Add missing folder specification to Monero Dockerfile

* Have monero-wallet-rpc specify the monerod login

* Have the Docker CMD specify env variables inserted at time of Dockerfile generation

They're overrideable with the global enviornment as for tests. This enables
variable generation in orchestrator and output to productionized Docker files
without creating a life-long file within the Docker container.

* Don't add Dockerfiles into Docker containers now that they have secrets

Solely add the source code for them as needed to satisfy the workspace bounds.

* Download arm64 Monero on arm64

* Ensure constant host architecture when reproducibly building the wasm

Host architecture, for some reason, can effect the generated code despite the
target architecture always being foreign to the host architecture.

* Randomly generate infrastructure keys

* Have orchestrator generate a key, be able to create/start containers

* Ensure bash is used over sh

* Clean dated docs

* Change how quoting occurs

* Standardize to sh

* Have Docker test build the dev Dockerfiles

* Only key_gen once

* cargo update

Adds a patch for zstd and reconciles the breaking nightly change which just
occurred.

* Use a dedicated network for Serai

Also fixes SERAI_HOSTNAME passed to coordinator.

* Support providing a key over the env for the Serai node

* Enable and document running daemons for tests via serai-orchestrator

Has running containers under the dev network port forward the RPC ports.

* Use volumes for bitcoin/monero

* Use bitcoin's run.sh in GH CI

* Only use the volume for testnet (not dev)
2024-02-09 02:48:44 -05:00
Luke Parker
617ec604ee
cargo update
Resolves the deny CI failure.
2024-01-04 01:46:26 -05:00
Luke Parker
b493e3e31f
Validator DHT (#494)
* Route validators for any active set through sc-authority-discovery

Additionally adds an RPC route to retrieve their P2P addresses.

* Have the coordinator get peers from substrate

* Have the RPC return one address, not up to 3

Prevents the coordinator from believing it has 3 peers when it has one.

* Add missing feature to serai-client

* Correct network argument in serai-client for p2p_validators call

* Add a test in serai-client to check DHT population with a much quicker failure than the coordinator tests

* Update to latest Substrate

Removes distinguishing BABE/AuthorityDiscovery keys which causes
sc_authority_discovery to populate as desired.

* Update to a properly tagged substrate commit

* Add all dialed to peers to GossipSub

* cargo fmt

* Reduce common code in serai-coordinator-tests with amore involved new_test

* Use a recursive async function to spawn `n` DockerTests with the necessary networking configuration

* Merge UNIQUE_ID and ONE_AT_A_TIME

* Tidy up the new recursive code in tests/coordinator

* Use a Mutex in CONTEXT to let it be set multiple times

* Make complimentary edits to full-stack tests

* Augment coordinator P2p connection logs

* Drop lock acquisitions before recursing

* Better scope lock acquisitions in full-stack, preventing a deadlock

* Ensure OUTER_OPS is reset across the test boundary

* Add cargo deny allowance for dockertest fork
2023-12-22 21:09:18 -05:00
akildemir
d015ee96a3
Dex improvements (#422)
* remove dex traits&balance types

* remove liq tokens pallet in favor of coins-pallet instance

* fix tests & benchmarks

* remove liquidity tokens trait

* fix CI

* fix pr comments

* Slight renamings

* Add burn_with_instruction as a negative to LiquidityTokens CallFilter

* Remove use of One, Zero, Saturating taits in dex pallet

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-11-12 06:37:31 -05:00
Luke Parker
b8ac8e697b
Add missing crate to tests, remove no longer present RUSTSEC ignore 2023-11-05 12:11:08 -05:00
akildemir
899a9604e1
Add Dex pallet (#407)
* Move pallet-asset-conversion

* update licensing

* initial integration

* Integrate Currency & Assets types

* integrate liquidity tokens

* fmt

* integrate dex pallet tests

* fmt

* compilation error fixes

* integrate dex benchmarks

* fmt

* cargo clippy

* replace all occurrences of "asset" with "coin"

* add the actual add liq/swap logic to in-instructions

* add client side & tests

* fix deny

* Lint and changes

- Renames InInstruction::AddLiquidity to InInstruction::SwapAndAddLiquidity
- Makes create_pool an internal function
- Makes dex-pallet exclusively create pools against a native coin
- Removes various fees
- Adds new crates to GH workflow

* Fix rebase artifacts

* Correct other rebase artifact

* Correct CI specification for liquidity-tokens

* Correct primitives' test to the standardized pallet account scheme

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-11-05 12:02:34 -05:00
Luke Parker
d66a7ee43e
Remove the staking pallet for validator-sets alone
The staking pallet is an indirection which offered no practical benefit yet
increased the overhead of every call.
2023-10-22 04:00:42 -04:00
Luke Parker
1bff2a0447
Add signals pallet
Resolves #353

Implements code such that:

- 80% of validators (by stake) must be in favor of a signal for the network to
  be
- 80% of networks (by stake) must be in favor of a signal for it to be locked
  in
- After a signal has been locked in for two weeks, the network halts

The intention is to:

1) Not allow validators to unilaterally declare new consensus rules.

No method of declaring new consensus rules is provided by this pallet. Solely a
way to deprecate the current rules, with a signaled for successor. All nodes
must then individually decide whether or not to download and run a new node
which has new rules, and if so, which rules.

2) Not place blobs on chain.

Even if they'd be reproducible, it's just a lot of data to chuck on the
blockchain.
2023-10-21 20:06:55 -04:00
akildemir
fdfce9e207
Coins pallet (#399)
* initial implementation

* add function to get a balance of an account

* add support for multiple coins

* rename pallet to "coins-pallet"

* replace balances, assets and tokens pallet with coins pallet in runtime

* add total supply info

* update client side for new Coins pallet

* handle fees

* bug fixes

* Update FeeAccount test

* Fmt

* fix pr comments

* remove extraneous Imbalance type

* Minor tweaks

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-10-19 06:22:21 -04:00
Luke Parker
1f5b1bb514
Update to lazy_static 1.5.0
Requires a git dependency due to
https://github.com/rust-lang-nursery/lazy-static.rs/issues/201.

Justified due to bumping the internally spin to 0.9 (containing a bug fix for
0.9 in general (https://github.com/rust-lang-nursery/lazy-static.rs/pull/199)),
surpassing 0.7 (offering performance
(https://github.com/rust-lang-nursery/lazy-static.rs/pull/182)).
2023-10-16 01:39:15 -04:00
akildemir
98190b7b83
Staking pallet (#373)
* initial staking pallet

* add staking pallet to runtime

* support session rotation for serai

* optimizations & cleaning

* fix deny

* add serai network to initial networks

* a few tweaks & comments

* fix some pr comments

* Rewrite validator-sets with logarithmic algorithms

Uses the fact the underlying DB is sorted to achieve sorting of potential
validators by stake.

Removes release of deallocated stake for now.

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-10-10 06:53:24 -04:00
Luke Parker
ca69f97fef
Add support for multiple multisigs to the processor (#377)
* Design and document a multisig rotation flow

* Make Scanner::eventualities a HashMap so it's per-key

* Don't drop eventualities, always follow through on them

Technical improvements made along the way.

* Start creating an isolate object to manage multisigs, which doesn't require being a signer

Removes key from SubstrateBlock.

* Move Scanner/Scheduler under multisigs

* Move Batch construction into MultisigManager

* Clarify "should" in Multisig Rotation docs

* Add block_number to MultisigManager, as it controls the scanner

* Move sign_plans into MultisigManager

Removes ThresholdKeys from prepare_send.

* Make SubstrateMutable an alias for MultisigManager

* Rewrite Multisig Rotation

The prior scheme had an exploit possible where funds were sent to the old
multisig, then burnt on Serai to send from the new multisig, locking liquidity
for 6 hours. While a fee could be applied to stragglers, to make this attack
unprofitable, the newly described scheme avoids all this.

* Add mini

mini is a miniature version of Serai, emphasizing Serai's nature as a
collection of independent clocks. The intended use is to identify race
conditions and prove protocols are comprehensive regarding when certain clocks
tick.

This uses loom, a prior candidate for evaluating the processor/coordinator as
free of race conditions (#361).

* Use mini to prove a race condition in the current multisig rotation docs, and prove safety of alternatives

Technically, the prior commit had mini prove the race condition.

The docs currently say the activation block of the new multisig is the block
after the next Batch's. If the two next Batches had already entered the
mempool, prior to set_keys being called, the second next Batch would be
expected to contain the new key's data yet fail to as the key wasn't public
when the Batch was actually created.

The naive solution is to create a Batch, publish it, wait until it's included,
and only then scan the next block. This sets a bound of
`Batch publication time < block time`. Optimistically, we can publish a Batch
in 24s while our shortest block time is 2m. Accordingly, we should be fine with
the naive solution which doesn't take advantage of throughput. #333 may
significantly change latency however and require an algorithm whose throughput
exceeds the rate of blocks created.

In order to re-introduce parallelization, enabling throughput, we need to
define a safe range of blocks to scan without Serai ordering the first one.
mini demonstrates safety of scanning n blocks Serai hasn't acknowledged, so
long as the first is scanned before block n+1 is (shifting the n-block window).

The docs will be updated next, to reflect this.

* Fix Multisig Rotation

I believe this is finally good enough to be final.

1) Fixes the race condition present in the prior document, as demonstrated by
mini.

`Batch`s for block `n` and `n+1`, may have been in the mempool when a
multisig's activation block was set to `n`. This would cause a potentially
distinct `Batch` for `n+1`, despite `n+1` already having a signed `Batch`.

2) Tightens when UIs should use the new multisig to prevent eclipse attacks,
and protection against `Batch` publication delays.

3) Removes liquidity fragmentation by tightening flow/handling of latency.

4) Several clarifications and documentation of reasoning.

5) Correction of "prior multisig" to "all prior multisigs" regarding historical
verification, with explanation why.

* Clarify terminology in mini

Synchronizes it from my original thoughts on potential schema to the design
actually created.

* Remove most of processor's README for a reference to docs/processor

This does drop some misc commentary, though none too beneficial. The section on
scanning, deemed sufficiently beneficial, has been moved to a document and
expanded on.

* Update scanner TODOs in line with new docs

* Correct documentation on Bitcoin::Block::time, and Block::time

* Make the scanner in MultisigManager no longer public

* Always send ConfirmKeyPair, regardless of if in-set

* Cargo.lock changes from a prior commit

* Add a policy document on defining a Canonical Chain

I accidentally committed a version of this with a few headers earlier, and this
is a proper version.

* Competent MultisigManager::new

* Update processor's comments

* Add mini to copied files

* Re-organize Scanner per multisig rotation document

* Add RUST_LOG trace targets to e2e tests

* Have the scanner wait once it gets too far ahead

Also bug fixes.

* Add activation blocks to the scanner

* Split received outputs into existing/new in MultisigManager

* Select the proper scheduler

* Schedule multisig activation as detailed in documentation

* Have the Coordinator assert if multiple `Batch`s occur within a block

While the processor used to have ack_up_to_block, enabling skips in the block
acked, support for this was removed while reworking it for multiple multisigs.
It should happen extremely infrequently.

While it would still be beneficial to have, if multiple `Batch`s could occur
within a block (with the complexity here not being worth adding that ban as a
policy), multiple `Batch`s were blocked for DoS reasons.

* Schedule payments to the proper multisig

* Correct >= to <

* Use the new multisig's key for change on schedule

* Don't report External TXs to prior multisig once deprecated

* Forward from the old multisig to the new one at all opportunities

* Move unfulfilled payments in queue from prior to new multisig

* Create MultisigsDb, splitting it out of MainDb

Drops the call to finish_signing from the Signer. While this will cause endless
re-attempts, the Signer will still consider them completed and drop them,
making this an O(n) cost at boot even if we did nothing from here.

The MultisigManager should call finish_signing once the Scanner completes the
Eventuality.

* Don't check Scanner-emitted completions, trust they are completions

Prevents needing to use async code to mark the completion and creates a
fault-free model. The current model, on fault, would cause a lack of marked
completion in the signer.

* Fix a possible panic in the processor

A shorter-chain reorg could cause this assert to trip. It's fixed by
de-duplicating the data, as the assertion checked consistency. Without the
potential for inconsistency, it's unnecessary.

* Document why an existing TODO isn't valid

* Change when we drop payments for being to the change address

The earlier timing prevents creating Plans solely to the branch address,
causing the payments to be dropped, and the TX to become an effective
aggregation TX.

* Extensively document solutions to Eventualities being potentially created after having already scanned their resolutions

* When closing, drop External/Branch outputs which don't cause progress

* Properly decide if Change outputs should be forward or not when closing

This completes all code needed to make the old multisig have a finite lifetime.

* Commentary on forwarding schemes

* Provide a 1 block window, with liquidity fragmentation risks, due to latency

On Bitcoin, this will be 10 minutes for the relevant Batch to be confirmed. On
Monero, 2 minutes. On Ethereum, ~6 minutes.

Also updates the Multisig Rotation document with the new forwarding plan.

* Implement transaction forwarding from old multisig to new multisig

Identifies a fault where Branch outputs which shouldn't be dropped may be, if
another output fulfills their next step. Locking Branch fulfillment down to
only Branch outputs is not done in this commit, but will be in the next.

* Only let Branch outputs fulfill branches

* Update TODOs

* Move the location of handling signer events to avoid a race condition

* Avoid a deadlock by using a RwLock on a single txn instead of two txns

* Move Batch ID out of the Scanner

* Increase from one block of latency on new keys activation to two

For Monero, this offered just two minutes when our latency to publish a Batch
is around a minute already. This does increase the time our liquidity can be
fragmented by up to 20 minutes (Bitcoin), yet it's a stupid attack only
possible once a week (when we rotate). Prioritizing normal users' transactions
not being subject to forwarding is more important here.

Ideally, we'd not do +2 blocks yet plus `time`, such as +10 minutes, making
this agnostic of the underlying network's block scheduling. This is a
complexity not worth it.

* Split MultisigManager::substrate_block into multiple functions

* Further tweaks to substrate_block

* Acquire a lock on all Scanner operations after calling ack_block

Gives time to call register_eventuality and initiate signing.

* Merge sign_plans into substrate_block

Also ensure the Scanner's lock isn't prematurely released.

* Use a HashMap to pass to-be-forwarded instructions, not the DB

* Successfully determine in ClosingExisting

* Move from 2 blocks of latency when rotating to 10 minutes

Superior as noted in 6d07af92ce10cfd74c17eb3400368b0150eb36d7, now trivial to
implement thanks to prior commit.

* Add note justifying measuring time in blocks when rotating

* Implement delaying of outputs received early to the new multisig per specification

* Documentation on why Branch outputs don't have the race condition concerns Change do

Also ensures 6 hours is at least N::CONFIRMATIONS, for sanity purposes.

* Remove TODO re: sanity checking Eventualities

We sanity check the Plan the Eventuality is derived from, and the Eventuality
is handled moments later (in the same file, with a clear call path). There's no
reason to add such APIs to Eventualities for a sanity check given that.

* Add TODO(now) for TODOs which must be done in this branch

Also deprecates a pair of TODOs to TODO2, and accepts the flow of the Signer
having the Eventuality.

* Correct errors in potential/future flow descriptions

* Accept having a single Plan Vec

Per the following code consuming it, there's no benefit to bifurcating it by
key.

* Only issue sign_transaction on boot for the proper signer

* Only set keys when participating in their construction

* Misc progress

Only send SubstrateBlockAck when we have a signer, as it's only used to tell
the Tributary of what Plans are being signed in response to this block.

Only immediately sets substrate_signer if session is 0.

On boot, doesn't panic if we don't have an active key (as we wouldn't if only
joining the next multisig). Continues.

* Correctly detect and set retirement block

Modifies the retirement block from first block meeting requirements to block
CONFIRMATIONS after.

Adds an ack flow to the Scanner's Confirmed event and Block event to accomplish
this, which may deadlock at this time (will be fixed shortly).

Removes an invalid await (after a point declared unsafe to use await) from
MultisigsManager::next_event.

* Remove deadlock in multisig_completed and document alternative

The alternative is simpler, albeit less efficient. There's no reason to adopt
it now, yet perhaps if it benefits modeling?

* Handle the final step of retirement, dropping the old key and setting new to existing

* Remove TODO about emitting a Block on every step

If we emit on NewAsChange, we lose the purpose of the NewAsChange period.

The only concern is if we reach ClosingExisting, and nothing has happened, then
all coins will still be in the old multisig until something finally does. This
isn't a problem worth solving, as it's latency under exceptional dead time.

* Add TODO about potentially not emitting a Block event for the reitrement block

* Restore accidentally deleted CI file

* Pair of slight tweaks

* Add missing if statement

* Disable an assertion when testing

One of the test flows currently abuses the Scanner in a way triggering it.
2023-09-25 09:48:15 -04:00
Luke Parker
aa724c06bc
Start relying on curve25519-dalek's group feature
Removes git dependency for schnorrkel as well, now that schnorrkel has updated.
2023-09-12 08:56:30 -04:00
Luke Parker
1838c37ecf
Full stack test framework 2023-08-27 18:37:12 -04:00
Luke Parker
ba46aa76f0
Update libp2p
Adds 17 new crates, which I'm extremely unhappy about. Unfortunately, it's
needed to resolve a security issue (RUSTSEC-2023-0052) and is inevitable.

Closes #355.
2023-08-25 00:01:58 -04:00
Luke Parker
f2872a2e07
Silence RUSTSEC tracked by https://github.com/serai-dex/serai/355
Since it isn't resolvable immediately, it's better to track it than effectively
neuter the deny job (as it would always error).
2023-08-22 22:15:13 -04:00
Luke Parker
498aa45619
Ban only versions of serde with binary blobs
Does downgrade time from 0.3.26 to 0.3.25 due to time banning > 1.0.171.
Hopefully that's also relaxed soon...
2023-08-21 00:57:22 -04:00
Luke Parker
8973eb8ac4
fmt + deny 2023-08-20 00:14:53 -04:00
Luke Parker
96583da3b9
cargo update
Achieves three notable updates.

1) Resolves RUSTSEC-2022-0093 by updating libp2p-identity.
2) Removes 3 old rand crates via updating ed25519-dalek (a dependency of
libp2p-identity).
3) Sets serde_derive to 1.0.171 via updating to time 0.3.26 which pins at up to
1.0.171.

The last one is the most important. The former two are niceties.

serde_derive, since 1.0.171, ships a non-reproducible binary blob in what's a
complete compromise of supply chain security. This is done in order to reduce
compile times, yet also for the maintainer of serde (dtolnay) to leverage
serde's position as the 8th most downloaded crate to attempt to force changes
to the Rust build pipeline.

While dtolnay's contributions to Rust are respectable, being behind syn, quote,
and proc-macro2 (the top three crates by downloads), along with thiserror,
anyhow, async-trait, and more (I believe also being part of the Rust project),
they have unfortunately decided to refuse to listen to the community on this
issue (or even engage with counter-commentary). Given their political agenda
they seem to try to be accomplishing with force, I'd go as far as to call their
actions terroristic (as they're using the threat of the binary blob as
justification for cargo to ship 'proper' support for binary blobs).

This is arguably representative of dtolnay's past work on watt. watt was a wasm
interpreter to execute a pre-compiled proc macro. This would save the compile
time of proc macros, yet sandbox it so a full binary did not have to be run.

Unfortunately, watt (while decreasing compile times) fails to be a valid
solution to supply chain security (without massive ecosystem changes). It never
implemented reproducible builds for its wasm blobs, and a malicious wasm blob
could still fundamentally compromise a project. The only solution for an end
user to achieve a secure pipeline would be to locally build the project,
verifying the blob aligns, yet doing so would negate all advantages of the
blob.

dtolnay also seems to be giving up their role as a FOSS maintainer given that
serde no longer works in several environments. While FOSS maintainers are not
required to never implement breaking changes, the version number is still 1.0.
While FOSS maintainers are not required to follow semver, releasing a very
notable breaking change *without a new version number* in an ecosystem which
*does follow semver*, then refusing to acknowledge bugs as bugs with their work
does meet my personal definition of "not actively maintaining their existing
work". Maintenance would be to fix bugs, not introduce and ignore.

For now, serde > 1.0.171 has been banned. In the future, we may host a fork
without the blobs (yet with the patches). It may be necessary to ban all of
dtolnay's maintained crates, if they continue to force their agenda as such,
yet I hope this may be resolved within the next week or so.

Sources:

https://github.com/serde-rs/serde/issues/2538 - Binary blob discussion

This includes several reports of various workflows being broken.

https://github.com/serde-rs/serde/issues/2538#issuecomment-1682519944

dtolnay commenting that security should be resolved via Rust toolchain edits,
not via their own work being secure. This is why I say they're trying to
leverage serde in a political game.

https://github.com/serde-rs/serde/issues/2526 - Usage via git broken

dtolnay explicitly asks the submitting user if they'd be willing to advocate
for changes to Rust rather than actually fix the issue they created. This is
further political arm wrestling.

https://github.com/serde-rs/serde/issues/2530 - Usage via Bazel broken

https://github.com/serde-rs/serde/issues/2575 - Unverifiable binary blob

https://github.com/dtolnay/watt - dtolnay's prior work on precompilation
2023-08-19 01:50:38 -04:00
Luke Parker
d5c787fea2
Add initial coordinator e2e tests 2023-08-01 19:00:48 -04:00
Luke Parker
c091b86919
Correct reproducible-runtime deny definition 2023-07-27 22:25:05 -04:00
Luke Parker
523a055b74
Add processor Docker tests
Adds tests/docker for code common to Docker-based tests.
2023-07-21 14:08:42 -04:00
Luke Parker
900298b94b
CI tweaks 2023-07-20 19:34:10 -04:00
Luke Parker
0a367bfbda
Add common crate to access env variables
In the future, we should use a proper secret store (not just env variables).
This lets us update one block of code and not n in the future.
2023-07-17 00:53:05 -04:00
Luke Parker
d49c636f0f
Use serai- prefixes on Serai-specific packages
Fixes deny.toml, also runs a minor cargo update shrinking the tree.
2023-07-03 08:50:23 -04:00
Luke Parker
c7b232949a
Correct deny.toml with inclusion of message-queue 2023-07-03 07:09:35 -04:00
Luke Parker
ac708b3b2a
no-std support for monero-serai (#311)
* Move monero-serai from std to std-shims, where possible

* no-std fixes

* Make the HttpRpc its own feature, thiserror only on std

* Drop monero-rs's epee for a homegrown one

We only need it for a single function. While I tried jeffro's, it didn't work
out of the box, had three unimplemented!s, and is no where near viable for
no_std.

Fixes #182, though should be further tested.

* no-std monero-serai

* Allow base58-monero via git

* cargo fmt
2023-06-29 04:14:29 -04:00
Luke Parker
ce883104b7
cargo update 2023-04-15 03:27:45 -04:00