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Replace bincode with borsh (#452)

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* Add SignalsConfig to chain_spec

* Correct multiexp feature flagging for rand_core std

* Remove bincode for borsh

Replaces a non-canonical encoding with a canonical encoding which additionally
should be faster.

Also fixes an issue where we used bincode in transcripts where it cannot be
trusted.

This ended up fixing a myriad of other bugs observed, unfortunately.
Accordingly, it either has to be merged or the bug fixes from it must be ported
to a new PR.

* Make serde optional, minimize usage

* Make borsh an optional dependency of substrate/ crates

* Remove unused dependencies

* Use [u8; 64] where possible in the processor messages

* Correct borsh feature flagging
This commit is contained in:
Luke Parker
2023-11-25 04:01:11 -05:00
committed by GitHub
parent 6b2876351e
commit b296be8515
52 changed files with 468 additions and 309 deletions
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66
substrate/validator-sets/primitives/src/lib.rs
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@@ -7,6 +7,10 @@ use ciphersuite::{group::GroupEncoding, Ciphersuite, Ristretto};
use scale::{Encode, Decode, MaxEncodedLen};
use scale_info::TypeInfo;
#[cfg(feature = "borsh")]
use borsh::{BorshSerialize, BorshDeserialize};
#[cfg(feature = "serde")]
use serde::{Serialize, Deserialize};
use sp_core::{ConstU32, sr25519::Public, bounded::BoundedVec};
@@ -22,39 +26,18 @@ pub const MAX_KEY_LEN: u32 = 96;
/// The type used to identify a specific session of validators.
#[derive(
Clone,
Copy,
PartialEq,
Eq,
Hash,
Debug,
Serialize,
Deserialize,
Encode,
Decode,
TypeInfo,
MaxEncodedLen,
Default,
Clone, Copy, PartialEq, Eq, Hash, Default, Debug, Encode, Decode, TypeInfo, MaxEncodedLen,
)]
#[cfg_attr(feature = "std", derive(Zeroize))]
#[cfg_attr(feature = "borsh", derive(BorshSerialize, BorshDeserialize))]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub struct Session(pub u32);
/// The type used to identify a specific validator set during a specific session.
#[derive(
Clone,
Copy,
PartialEq,
Eq,
Hash,
Debug,
Serialize,
Deserialize,
Encode,
Decode,
TypeInfo,
MaxEncodedLen,
)]
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug, Encode, Decode, TypeInfo, MaxEncodedLen)]
#[cfg_attr(feature = "std", derive(Zeroize))]
#[cfg_attr(feature = "borsh", derive(BorshSerialize, BorshDeserialize))]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub struct ValidatorSet {
pub session: Session,
pub network: NetworkId,
@@ -67,7 +50,34 @@ pub type ExternalKey = BoundedVec<u8, MaxKeyLen>;
/// The key pair for a validator set.
///
/// This is their Ristretto key, used for signing Batches, and their key on the external network.
pub type KeyPair = (Public, ExternalKey);
#[derive(Clone, PartialEq, Eq, Debug, Encode, Decode, TypeInfo, MaxEncodedLen)]
#[cfg_attr(feature = "borsh", derive(BorshSerialize, BorshDeserialize))]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub struct KeyPair(
#[cfg_attr(
feature = "borsh",
borsh(
serialize_with = "serai_primitives::borsh_serialize_public",
deserialize_with = "serai_primitives::borsh_deserialize_public"
)
)]
pub Public,
#[cfg_attr(
feature = "borsh",
borsh(
serialize_with = "serai_primitives::borsh_serialize_bounded_vec",
deserialize_with = "serai_primitives::borsh_deserialize_bounded_vec"
)
)]
pub ExternalKey,
);
#[cfg(feature = "std")]
impl Zeroize for KeyPair {
fn zeroize(&mut self) {
self.0 .0.zeroize();
self.1.as_mut().zeroize();
}
}
/// The MuSig context for a validator set.
pub fn musig_context(set: ValidatorSet) -> Vec<u8> {