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*: Refactor authority discovery (key mngmt, runtime API) (#3955)

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* {core,srml}/authority-discovery: Move generic to specific session keys

* {srml,core}/authority-discovery: Verify signature outside of runtime

Given that the `core/authority-discovery` uses concrete authority
identifiers and signatures, one can verify a signature with the
authority discovery within `core`. Given the above, the `verify` runtime
api is obsolete and thus removed.

* *: Add authority discovery to the set of session keys

* *: Sign authority discovery DHT payload with keystore instead of runtime

Instead of calling a runtime function to sign a dht payload, which then
invokes the keystore, pass the keystore to the authority discovery
module and use it directly.

* core/authority-discovery: Give libp2p Kademlia time to start up

* core/authority-discovery: Move authorities priority group name to const

* node/runtime/src/lib.rs: Bump runtime spec version

* *: Fix lints and node/testing test failures

* *: Fix formatting

* core/authority-discovery: Box dht event channel in unit tests

* node/cli/src/service.rs: Fix future import

* node/cli/src/service.rs: Replace unwrap by expect with proof

* node/cli/src/chain_spec: Remove TODO for testnet key generation

* core/authority-discovery/src/lib: Remove scale encoding TODOs

* srml/authority-discovery: Make comment a doc comment

* core/authority-discovery: Remove unused StreamExt import

* node/runtime: Bump impl version to debug CI

* Test ci.

* Change the line width to 100.

* Revert "Change the line width to 100."

This reverts commit edff1f855bc71e0418bf3a967f81a35591d882e3.

* Fix a check for polkadot to work on forked repos.

* Revert "node/runtime: Bump impl version to debug CI"

This reverts commit 1a90903b4c929bc55a9e0a538af34b50b7f65139.

* Revert "Test ci."

This reverts commit a2c9df574e645158f77cd2b3d4d9355bcae33aab.

* Cargo.lock: Fix wrong lock file merge

* srml/authority-discovery: Keep track of new validator set not upcoming

* core/authority-discovery: Document key retrieval functions
This commit is contained in:
Max Inden
2019-11-14 14:14:06 +01:00
committed by Bastian Köcher
parent 64f7ed04dc
commit becc3b0a4f
17 changed files with 324 additions and 300 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/core/authority-discovery/primitives/Cargo.toml
+3 -1
View File
@@ -6,14 +6,16 @@ description = "Authority discovery primitives"
edition = "2018"
[dependencies]
app-crypto = { package = "substrate-application-crypto", path = "../../application-crypto", default-features = false }
codec = { package = "parity-scale-codec", default-features = false, version = "1.0.3" }
rstd = { package = "sr-std", path = "../../sr-std", default-features = false }
sr-api = { path = "../../sr-api", default-features = false }
sr-primitives = { path = "../../sr-primitives", default-features = false }
rstd = { package = "sr-std", path = "../../sr-std", default-features = false }
[features]
default = ["std"]
std = [
"app-crypto/std",
"rstd/std",
"sr-api/std",
"codec/std",
substrate/core/authority-discovery/primitives/src/lib.rs
+15 -18
View File
@@ -19,31 +19,28 @@
#![cfg_attr(not(feature = "std"), no_std)]
use rstd::vec::Vec;
use sr_primitives::RuntimeDebug;
#[derive(codec::Encode, codec::Decode, Eq, PartialEq, Clone, RuntimeDebug)]
#[cfg_attr(feature = "std", derive(Hash))]
pub struct Signature(pub Vec<u8>);
#[derive(codec::Encode, codec::Decode, Eq, PartialEq, Clone, RuntimeDebug)]
#[cfg_attr(feature = "std", derive(Hash))]
pub struct AuthorityId(pub Vec<u8>);
mod app {
use app_crypto::{app_crypto, key_types::AUTHORITY_DISCOVERY, sr25519};
app_crypto!(sr25519, AUTHORITY_DISCOVERY);
}
/// An authority discovery authority keypair.
#[cfg(feature = "std")]
pub type AuthorityPair = app::Pair;
/// An authority discovery authority identifier.
pub type AuthorityId = app::Public;
/// An authority discovery authority signature.
pub type AuthoritySignature = app::Signature;
sr_api::decl_runtime_apis! {
/// The authority discovery api.
///
/// This api is used by the `core/authority-discovery` module to retrieve our
/// own authority identifier, to retrieve identifiers of the current authority
/// set, as well as sign and verify Kademlia Dht external address payloads
/// from and to other authorities.
/// This api is used by the `core/authority-discovery` module to retrieve identifiers of the current authority set.
pub trait AuthorityDiscoveryApi {
/// Retrieve authority identifiers of the current authority set.
fn authorities() -> Vec<AuthorityId>;
/// Sign the given payload with the private key corresponding to the given authority id.
fn sign(payload: &Vec<u8>) -> Option<(Signature, AuthorityId)>;
/// Verify the given signature for the given payload with the given
/// authority identifier.
fn verify(payload: &Vec<u8>, signature: &Signature, authority_id: &AuthorityId) -> bool;
}
}