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more secure and optimized Round 5 metadata hashing pipeline

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Signed-off-by: Uncle Stretch <uncle.stretch@ghostchain.io>
This commit is contained in:
Uncle Stretch 2026-10-01 21:35:38 +03:00
parent 6b0033425c
commit 8abd114a5b
Signed by: str3tch
GPG Key ID: 84F3190747EE79AA
3 changed files with 7 additions and 13 deletions
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2
pallets/exodus/Cargo.toml
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@ -1,6 +1,6 @@
[package] [package]
name = "ghost-exodus" name = "ghost-exodus"
version = "0.0.18" version = "0.0.19"
description = "Threshold signature generation with DKG included" description = "Threshold signature generation with DKG included"
license.workspace = true license.workspace = true
authors.workspace = true authors.workspace = true

7
pallets/exodus/src/benchmarking.rs
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@ -352,11 +352,8 @@ mod benchmarks {
dummy_verifying_key, dummy_verifying_key,
).expect("Bounded verifying key should be correct"); ).expect("Bounded verifying key should be correct");
let metadata_hashes = [ let metadata_hashes = [dummy_merkle_root.as_ref(), bounded_verifying_key.as_ref()];
SubstrateBlake2Hasher::hash(dummy_merkle_root.as_ref()), let verifying_hash = cumulative_hash::<SubstrateBlake2Hasher, _>(metadata_hashes);
SubstrateBlake2Hasher::hash(bounded_verifying_key.as_ref()),
];
let verifying_hash = sequential_hash::<SubstrateBlake2Hasher, _>(metadata_hashes);
let verification_key = (network_curve, dkg_index, verifying_hash); let verification_key = (network_curve, dkg_index, verifying_hash);
let participants = Verifications::<T>::get(verification_key); let participants = Verifications::<T>::get(verification_key);

11
pallets/exodus/src/lib.rs
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@ -31,7 +31,7 @@ use sp_io::hashing::blake2_256;
use ghost_helpers::{ use ghost_helpers::{
get_byzantium_quorum_threshold, SubstrateBlake2Hasher, get_byzantium_quorum_threshold, SubstrateBlake2Hasher,
hash_chain::{cumulative_hash, sequential_hash}, hash_chain::cumulative_hash,
networks::{NetworkData, NetworkCurve, NetworkType}, networks::{NetworkData, NetworkCurve, NetworkType},
bounded_bitmap::{validate_bitmap_sizes, BoundedBitmap}, bounded_bitmap::{validate_bitmap_sizes, BoundedBitmap},
}; };
@ -40,7 +40,6 @@ use ghost_helpers::{
use ghost_traits::exodus::IdentifierConverter; use ghost_traits::exodus::IdentifierConverter;
use ghost_traits::{ use ghost_traits::{
hashing::GhostHasher,
bounded_bitmap::{ bounded_bitmap::{
BoundedBitmapGenerator, BoundedBitmapWriter, BoundedBitmapReader, BoundedBitmapGenerator, BoundedBitmapWriter, BoundedBitmapReader,
BoundedBitmapIterable, BoundedBitmapIterable,
@ -1254,11 +1253,9 @@ pub mod pallet {
return Err(Error::<T>::Round5PackageInvalidProof.into()); return Err(Error::<T>::Round5PackageInvalidProof.into());
}; };
let metadata_hashes = [ let metadata_hashes = [round5.merkle_root.as_ref(), round5.verifying_key.as_ref()];
SubstrateBlake2Hasher::hash(round5.merkle_root.as_ref()), let verifying_hash = cumulative_hash::<SubstrateBlake2Hasher, _>(metadata_hashes);
SubstrateBlake2Hasher::hash(round5.verifying_key.as_ref()),
];
let verifying_hash = sequential_hash::<SubstrateBlake2Hasher, _>(metadata_hashes);
let state = QualificationDkgState::<T>::get(&network_curve); let state = QualificationDkgState::<T>::get(&network_curve);
ensure!(state.is_fifth_phase(), Error::<T>::DkgWrongRound); ensure!(state.is_fifth_phase(), Error::<T>::DkgWrongRound);