refactor substrate-common to entropy-shared (#272)

This PR modifies the `substrate-common` package:

- refactors/renames all "substrate-common" and "substrate_common" to "entropy-shared" and "entropy_shared"
- updates crypto/entropy-types/README.md
- removes a few unused structs from that package

It also makes a small change to `entropy-constraints` Cargo.toml for properly handling std and no_std, unrelated to above

.circleci/then.yml

@@ -59,7 +59,7 @@ workflows:
   #     # - crypto-centralized-keygen
   #     - crypto-server
   #     # - crypto-kvdb
-  #     # - crypto-substrate-common
+  #     # - crypto-entropy-shared
   node:
     when:
       or: [ << pipeline.parameters.node >>, << pipeline.parameters.pallets >>, << pipeline.parameters.runtime >>, pipeline.parameters.crypto ]
@@ -97,13 +97,13 @@ jobs:
   #   steps:
   #     - install-dependencies-and-checkout
   #     - run: cd crypto/kvdb
-  # crypto-substrate-common:
+  # crypto-entropy-shared:
   #   machine:
   #     image: "ubuntu-2004:202201-02"
   #     resource_class: "xlarge"
   #   steps:
   #     - install-dependencies-and-checkout
-  #     - run: cd crypto/substrate-common
+  #     - run: cd crypto/shared
   node-test:
     machine:
       image: "ubuntu-2004:202201-02"

.vscode/launch.json

@@ -98,16 +98,16 @@
 		{
 			"type": "lldb",
 			"request": "launch",
-			"name": "Debug unit tests in library 'substrate-common'",
+			"name": "Debug unit tests in library 'entropy-shared'",
 			"cargo": {
 				"args": [
 					"test",
 					"--no-run",
 					"--lib",
-					"--package=substrate-common"
+					"--package=entropy-shared"
 				],
 				"filter": {
-					"name": "substrate-common",
+					"name": "entropy-shared",
 					"kind": "lib"
 				}
 			},

crypto/README.md

@@ -1,25 +1,30 @@
 # Crypto
+
 This document serves as a partial spec of this repo.
 
 The major actors in this repo are:
+
 - `server`:
   - `signing-client` - HTTP endpoints run by all nodes for signing protocols
   - `communication-manager` (TO BE DEPRECATED, see note below) - AKA, the previous block's proposer. The CM is run by the previous block-proposer, and is responsible for choosing and notifying signing parties for each user signing-tx in the previous block.
     - Currently, each node must notify the communication manager what shares they hold (`send_ip_address`), after which, the CM chooses the parties.
-    - After implementing Partitions, all info about which nodes hold which shares will be stored on-chain, and this call will be eliminated. 
-  - `partition` - (unimpl) Entropy nodes are partitioned into one of $N$ Partitions. Nodes from the same Partition have equivalent secret keyshare information. 
+    - After implementing Partitions, all info about which nodes hold which shares will be stored on-chain, and this call will be eliminated.
+  - `partition` - (unimpl) Entropy nodes are partitioned into one of $N$ Partitions. Nodes from the same Partition have equivalent secret keyshare information.
     - To be deprecated 2022-08-26: Each Partition has a Partition Leader, who broadcasts messages to the Partition, eg., when receiving shares from new users.
     - instead: `new_user`: user contacts all nodes in the network directly with a message containing that node's share
       - why: reduces complexity, avoids issue of malicious committee leader
 
 The utility crates in this repo are:
+
 - `kvdb` - An encrypted key-value datastore
-- `substrate-common` - Common no-std types, which Substrate requires
+- `entropy-shared` - Common no-std types, which Substrate requires
 - `testing-utils` - testing utility methods shared across the workspace
 - `constraints` - A `whitelist` feature. On Thor's chopping block, to be integrated into `server`
 
 ## Documentation of major APIs
+
 At the moment, these two APIs are in progress:
+
 - `sign` (in progress)
 - `new_user` (to impl after sign, includes changes to Partition)
 
@@ -29,22 +34,27 @@ Eventually these will also be implemented:
 - `delete_user` - remove a user's information from all nodes
 
 ## `new_user` - create a new user (todo)
+
 deprecated 2022-08-26:
+
 1. deprecate: Each Partition Leader is informed of a new user's secret keyshare by the User. User calls `partition_leader::new_user` on each CL.
 2. Partition Leaders validate that each other CL received a valid keyshare.
 3. Each CL broadcasts the user's secret keyshare (by calling `new_user`) to each node in their Partition.
 
 Instead:
-1. The user sends each node in the network containing a share. 
+
+1. The user sends each node in the network containing a share.
 2. Nodes validate that each other node in their Partition received an identical keyshare.
-3. Test the share validity: one node from each partition is selected to construct a signature. 
-  - If the signature is valid, end, post (todo: what data) new-user data on chain
-  - If the signature is invalid, and no node faulted, user is at fault, fail
-  - If the signature is invalid, and a node faulted, slash node, retry with new node from that partition
+3. Test the share validity: one node from each partition is selected to construct a signature.
+
+- If the signature is valid, end, post (todo: what data) new-user data on chain
+- If the signature is invalid, and no node faulted, user is at fault, fail
+- If the signature is invalid, and a node faulted, slash node, retry with new node from that partition
 
 ## `sign` - construct a signature to return to the user
+
 1. User submits a transaction (`pallets::relayer::prep_transaction`) to the chain, containing a message including their substrate address and their (hashed) message.
-2. A set of transactions is picked up by the next block proposer (substrate: TODO). The proposed block contains the proposed signing party information (`server/sign_init`). 
+2. A set of transactions is picked up by the next block proposer (substrate: TODO). The proposed block contains the proposed signing party information (`server/sign_init`).
 3. Upon block finalization, signers read the block (substrate: TODO), containing the IP addresses of nodes who must now execute signing protocols. If a node is in a signing party, it advances to the next step.
 <!-- 2. In the next block, an offchain worker is created (`pallet::propagation::offchain_worker`) -->
 <!--   - currently: by each node. The communication manager waits for calls from each other node about node party information. -->

crypto/constraints/Cargo.toml

@@ -9,11 +9,15 @@ edition="2021"
 thiserror="1.0"
 
 # parsing
-serde           ="1.0.147"
-serde_json      ="1.0"
-serde_derive    ="1.0.147"
-substrate-common={ path="../substrate-common", default-features=false }
-sp-core         ={ git="https://github.com/paritytech/substrate", branch="polkadot-v0.9.30" }
+serde         ="1.0.147"
+serde_json    ="1.0"
+serde_derive  ="1.0.147"
+entropy-shared={ path="../shared", default-features=false }
+sp-core       ={ git="https://github.com/paritytech/substrate", branch="polkadot-v0.9.30", default-features=false }
 
 # EVM
 web3={ version="0.17.0", default-features=false }
+
+[features]
+default=["std"]
+std    =["serde/std", "serde_json/std", "entropy-shared/std", "sp-core/std"]

crypto/constraints/src/constraint.rs

@@ -1,4 +1,4 @@
-use substrate_common::{Acl, AclKind, Architecture, BasicTransaction};
+use entropy_shared::{Acl, AclKind, Architecture, BasicTransaction};
 use thiserror::Error;
 
 /// Constraint errors.

crypto/constraints/src/tests.rs

@@ -1,4 +1,4 @@
-use substrate_common::{Acl, AclKind, Architecture};
+use entropy_shared::{Acl, AclKind, Architecture};
 
 use crate::{
     constraint::Constraint,

crypto/constraints/src/tx/evm.rs

@@ -1,6 +1,6 @@
 //! This includes all EVM-architecture related types and functions.
+use entropy_shared::{Arch, Architecture, HasArch, HasReceiver, HasSender};
 use serde_derive::{Deserialize, Serialize};
-use substrate_common::{Arch, Architecture, HasArch, HasReceiver, HasSender};
 use web3::types::Address;
 pub use web3::types::TransactionRequest as EvmTransactionRequest;
 

crypto/constraints/src/tx/utils.rs

@@ -1,5 +1,5 @@
+use entropy_shared::{Architecture, BasicTransaction, HasReceiver, HasSender};
 use serde_json::from_value;
-use substrate_common::{Architecture, BasicTransaction, HasReceiver, HasSender};
 use thiserror::Error;
 
 /// Errors related to parsing raw transactions

crypto/server/Cargo.toml

@@ -37,7 +37,7 @@ sp-core           ={ package="sp-core", git="https://github.com/paritytech/subst
 tofn              ={ git="https://github.com/entropyxyz/tofn", branch="main" }
 
 # Entropy
-substrate-common   ={ path="../substrate-common" }
+entropy-shared     ={ path="../shared" }
 kvdb               ={ path="../kvdb", default-features=false }
 entropy-constraints={ path="../constraints" }
 

crypto/server/src/main.rs

@@ -31,10 +31,10 @@ extern crate rocket;
 use std::{string::String, thread, time::Duration};
 
 use clap::Parser;
+use entropy_shared::{MIN_BALANCE, SIGNING_PARTY_SIZE};
 use kvdb::kv_manager::{error::KvError, KeyReservation, KvManager};
 use rocket::routes;
 use sp_keyring::AccountKeyring;
-use substrate_common::{MIN_BALANCE, SIGNING_PARTY_SIZE};
 use subxt::ext::sp_core::{crypto::AccountId32, sr25519, Pair};
 
 use self::{

crypto/server/src/sign_init.rs

@@ -49,7 +49,7 @@ impl SignInit {
 
     // TODO: remove when we have a real implementation
     // Generate temporary data for API testing.
-    pub(crate) fn temporary_data(message: substrate_common::Message) -> Self {
+    pub(crate) fn temporary_data(message: entropy_shared::Message) -> Self {
         let digest: MessageDigest = message.sig_request.sig_hash.as_slice().try_into().unwrap();
         let raw_address = &message.account;
         let address_slice: &[u8; 32] =

crypto/server/src/signing_client/api.rs

@@ -1,9 +1,9 @@
 use std::{io, str};
 
+use entropy_shared::OCWMessage;
 use kvdb::kv_manager::KvManager;
 use parity_scale_codec::Decode;
 use rocket::{http::Status, response::stream::EventStream, serde::json::Json, Shutdown, State};
-use substrate_common::OCWMessage;
 use subxt::ext::sp_runtime::AccountId32;
 use tracing::instrument;
 

crypto/server/src/signing_client/tests.rs

@@ -7,6 +7,7 @@ use std::{
 };
 
 use bincode::Options;
+use entropy_shared::{Message, SigRequest};
 use kvdb::{
     clean_tests, encrypted_sled::PasswordMethod, get_db_path, kv_manager::value::KvManager,
 };
@@ -20,7 +21,6 @@ use rocket::{
 use serial_test::serial;
 use sp_core::{crypto::AccountId32, sr25519::Pair as Sr25519Pair, Pair as Pair2};
 use sp_keyring::AccountKeyring;
-use substrate_common::{Message, SigRequest};
 use subxt::{ext::sp_core::sr25519, tx::PairSigner};
 use testing_utils::context::{test_context, test_context_stationary};
 use tofn::{

crypto/server/src/user/api.rs

@@ -1,5 +1,9 @@
 use bip39::{Language, Mnemonic};
 use entropy_constraints::tx::evm::Evm;
+use entropy_shared::{
+    types::{Acl, AclKind, Architecture, BasicTransaction},
+    SIGNING_PARTY_SIZE,
+};
 use kvdb::kv_manager::{
     error::{InnerKvError, KvError},
     value::PartyInfo,
@@ -14,10 +18,6 @@ use rocket::{
 };
 use serde::{Deserialize, Serialize};
 use serde_derive::{Deserialize as DeserializeDerive, Serialize as SerializeDerive};
-use substrate_common::{
-    types::{Acl, AclKind, Architecture, BasicTransaction},
-    SIGNING_PARTY_SIZE,
-};
 use subxt::{
     ext::{
         sp_core::{sr25519, Pair},

crypto/server/src/user/tests.rs

@@ -22,7 +22,7 @@ use crate::{
     message::{derive_static_secret, mnemonic_to_pair, new_mnemonic, SignedMessage},
     setup_mnemonic,
     user::{
-        tests::entropy::runtime_types::substrate_common::constraints::acl::Acl,
+        tests::entropy::runtime_types::entropy_shared::constraints::acl::Acl,
         unsafe_api::UnsafeQuery,
     },
     utils,