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VRF refactory (#13889)

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* First iteration to encapsulate schnorrkel and merlin usage

* Remove schnorkel direct dependency from BABE pallet

* Remove schnorrkel direct dependency from BABE client

* Trivial renaming for VrfTranscript data and value

* Better errors

* Expose a function to get a schnorrkel friendly transcript

* Keep the vrf signature stuff together (preventing some clones around)

* Fix tests

* Remove vrf agnostic transcript and define it as an associated type for VrfSigner and VrfVerifier

* Fix babe pallet mock

* Inner types are required to be public for polkadot

* Update client/consensus/babe/src/verification.rs

Co-authored-by: Koute <koute@users.noreply.github.com>

* Nit

* Remove Deref implementations

* make_bytes as a method

* Trigger CI

---------

Co-authored-by: Koute <koute@users.noreply.github.com>
This commit is contained in:
Davide Galassi
2023-04-19 11:11:47 +02:00
committed by GitHub
parent d9ad6feac0
commit bb394e08ac
28 changed files with 473 additions and 717 deletions
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substrate/frame/babe/src/randomness.rs
+4 -4
View File
@@ -19,7 +19,7 @@
//! randomness collected from VRF outputs.
use super::{
AuthorVrfRandomness, Config, EpochStart, NextRandomness, Randomness, VRF_OUTPUT_LENGTH,
AuthorVrfRandomness, Config, EpochStart, NextRandomness, Randomness, RANDOMNESS_LENGTH,
};
use frame_support::traits::Randomness as RandomnessT;
use sp_runtime::traits::{Hash, One, Saturating};
@@ -132,7 +132,7 @@ pub struct CurrentBlockRandomness<T>(sp_std::marker::PhantomData<T>);
impl<T: Config> RandomnessT<T::Hash, T::BlockNumber> for RandomnessFromTwoEpochsAgo<T> {
fn random(subject: &[u8]) -> (T::Hash, T::BlockNumber) {
let mut subject = subject.to_vec();
subject.reserve(VRF_OUTPUT_LENGTH);
subject.reserve(RANDOMNESS_LENGTH);
subject.extend_from_slice(&Randomness::<T>::get()[..]);
(T::Hashing::hash(&subject[..]), EpochStart::<T>::get().0)
@@ -142,7 +142,7 @@ impl<T: Config> RandomnessT<T::Hash, T::BlockNumber> for RandomnessFromTwoEpochs
impl<T: Config> RandomnessT<T::Hash, T::BlockNumber> for RandomnessFromOneEpochAgo<T> {
fn random(subject: &[u8]) -> (T::Hash, T::BlockNumber) {
let mut subject = subject.to_vec();
subject.reserve(VRF_OUTPUT_LENGTH);
subject.reserve(RANDOMNESS_LENGTH);
subject.extend_from_slice(&NextRandomness::<T>::get()[..]);
(T::Hashing::hash(&subject[..]), EpochStart::<T>::get().1)
@@ -153,7 +153,7 @@ impl<T: Config> RandomnessT<Option<T::Hash>, T::BlockNumber> for ParentBlockRand
fn random(subject: &[u8]) -> (Option<T::Hash>, T::BlockNumber) {
let random = AuthorVrfRandomness::<T>::get().map(|random| {
let mut subject = subject.to_vec();
subject.reserve(VRF_OUTPUT_LENGTH);
subject.reserve(RANDOMNESS_LENGTH);
subject.extend_from_slice(&random);
T::Hashing::hash(&subject[..])