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Correct BABE randomness by calculating InOut bytes directly in pallet (#5876)

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* vrf: remove Raw* types

* babe: remove Raw* types

* pallet-babe: switch representation of RawVRFOutput to Randomness

* pallet-babe: calculate inout within the pallet

* Remove make_transcript duplication

* Bump spec version

* Fix frame tests

* and_then -> map

* Always enable u64_backend

* Fix nostd compile

* fix import: should not use std

* Remove unused definition of RawVRFOutput

* Remove unused import of RuntimeDebug

Co-authored-by: Gavin Wood <gavin@parity.io>
This commit is contained in:
Wei Tang
2020-05-04 19:51:47 +02:00
committed by GitHub
parent 9c5536e01a
commit a00a4ca551
13 changed files with 146 additions and 241 deletions
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substrate/client/consensus/babe/src/authorship.rs
+1 -15
View File
@@ -16,9 +16,8 @@
//! BABE authority selection and slot claiming.
use merlin::Transcript;
use sp_consensus_babe::{
AuthorityId, BabeAuthorityWeight, BABE_ENGINE_ID, BABE_VRF_PREFIX,
make_transcript, AuthorityId, BabeAuthorityWeight, BABE_VRF_PREFIX,
SlotNumber, AuthorityPair,
};
use sp_consensus_babe::digests::{
@@ -119,19 +118,6 @@ pub(super) fn secondary_slot_author(
Some(&expected_author.0)
}
pub(super) fn make_transcript(
randomness: &[u8],
slot_number: u64,
epoch: u64,
) -> Transcript {
let mut transcript = Transcript::new(&BABE_ENGINE_ID);
transcript.append_u64(b"slot number", slot_number);
transcript.append_u64(b"current epoch", epoch);
transcript.append_message(b"chain randomness", randomness);
transcript
}
/// Claim a secondary slot if it is our turn to propose, returning the
/// pre-digest to use when authoring the block, or `None` if it is not our turn
/// to propose.
substrate/client/consensus/babe/src/verification.rs
+2 -2
View File
@@ -17,7 +17,7 @@
//! Verification for BABE headers.
use sp_runtime::{traits::Header, traits::DigestItemFor};
use sp_core::{Pair, Public};
use sp_consensus_babe::{AuthoritySignature, SlotNumber, AuthorityPair, AuthorityId};
use sp_consensus_babe::{make_transcript, AuthoritySignature, SlotNumber, AuthorityPair, AuthorityId};
use sp_consensus_babe::digests::{
PreDigest, PrimaryPreDigest, SecondaryPlainPreDigest, SecondaryVRFPreDigest,
CompatibleDigestItem
@@ -25,7 +25,7 @@ use sp_consensus_babe::digests::{
use sc_consensus_slots::CheckedHeader;
use log::{debug, trace};
use super::{find_pre_digest, babe_err, Epoch, BlockT, Error};
use super::authorship::{make_transcript, calculate_primary_threshold, check_primary_threshold, secondary_slot_author};
use super::authorship::{calculate_primary_threshold, check_primary_threshold, secondary_slot_author};
/// BABE verification parameters
pub(super) struct VerificationParams<'a, B: 'a + BlockT> {