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Upgrade to v1.4.0-beta.3 (#4862)

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## Issue Addressed

Makes lighthouse compliant with new kzg changes in https://github.com/ethereum/consensus-specs/releases/tag/v1.4.0-beta.3

## Proposed Changes

1. Adds new official trusted setup
2. Refactors kzg to match upstream changes in https://github.com/ethereum/c-kzg-4844/pull/377
3. Updates pre-generated `BlobBundle` to work with official trusted setup. ~~Using json here instead of ssz to account for different value of `MaxBlobCommitmentsPerBlock` in minimal and mainnet. By using json, we can just use one pre generated bundle for both minimal and mainnet. Size of 2 separate ssz bundles is approximately equal to one json bundle cc @jimmygchen~~ 
Dunno what I was doing, ssz works without any issues  
4. Stores trusted_setup as just bytes in eth2_network_config so that we don't have kzg dependency in that lib and in lcli. 


Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: realbigsean <seananderson33@GMAIL.com>
This commit is contained in:
Pawan Dhananjay
2023-10-21 13:49:27 +00:00
parent 074c4951fc
commit 6315a81260
36 changed files with 142 additions and 467 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
beacon_node/beacon_chain/src/kzg_utils.rs
View File

@@ -1,31 +1,26 @@
use kzg::{Error as KzgError, Kzg, KzgPreset};
use kzg::{Blob as KzgBlob, Error as KzgError, Kzg};
use types::{Blob, EthSpec, Hash256, KzgCommitment, KzgProof};
/// Converts a blob ssz List object to an array to be used with the kzg
/// crypto library.
fn ssz_blob_to_crypto_blob<T: EthSpec>(
blob: &Blob<T>,
) -> Result<<<T as EthSpec>::Kzg as KzgPreset>::Blob, KzgError> {
T::blob_from_bytes(blob.as_ref())
fn ssz_blob_to_crypto_blob<T: EthSpec>(blob: &Blob<T>) -> Result<KzgBlob, KzgError> {
KzgBlob::from_bytes(blob.as_ref())
}
/// Validate a single blob-commitment-proof triplet from a `BlobSidecar`.
pub fn validate_blob<T: EthSpec>(
kzg: &Kzg<T::Kzg>,
kzg: &Kzg,
blob: &Blob<T>,
kzg_commitment: KzgCommitment,
kzg_proof: KzgProof,
) -> Result<bool, KzgError> {
kzg.verify_blob_kzg_proof(
&ssz_blob_to_crypto_blob::<T>(blob)?,
kzg_commitment,
kzg_proof,
)
let kzg_blob = ssz_blob_to_crypto_blob::<T>(blob)?;
kzg.verify_blob_kzg_proof(&kzg_blob, kzg_commitment, kzg_proof)
}
/// Validate a batch of blob-commitment-proof triplets from multiple `BlobSidecars`.
pub fn validate_blobs<T: EthSpec>(
kzg: &Kzg<T::Kzg>,
kzg: &Kzg,
expected_kzg_commitments: &[KzgCommitment],
blobs: Vec<&Blob<T>>,
kzg_proofs: &[KzgProof],
@@ -40,36 +35,38 @@ pub fn validate_blobs<T: EthSpec>(
/// Compute the kzg proof given an ssz blob and its kzg commitment.
pub fn compute_blob_kzg_proof<T: EthSpec>(
kzg: &Kzg<T::Kzg>,
kzg: &Kzg,
blob: &Blob<T>,
kzg_commitment: KzgCommitment,
) -> Result<KzgProof, KzgError> {
// Avoid this blob clone
kzg.compute_blob_kzg_proof(&ssz_blob_to_crypto_blob::<T>(blob)?, kzg_commitment)
let kzg_blob = ssz_blob_to_crypto_blob::<T>(blob)?;
kzg.compute_blob_kzg_proof(&kzg_blob, kzg_commitment)
}
/// Compute the kzg commitment for a given blob.
pub fn blob_to_kzg_commitment<T: EthSpec>(
kzg: &Kzg<T::Kzg>,
kzg: &Kzg,
blob: &Blob<T>,
) -> Result<KzgCommitment, KzgError> {
kzg.blob_to_kzg_commitment(&ssz_blob_to_crypto_blob::<T>(blob)?)
let kzg_blob = ssz_blob_to_crypto_blob::<T>(blob)?;
kzg.blob_to_kzg_commitment(&kzg_blob)
}
/// Compute the kzg proof for a given blob and an evaluation point z.
pub fn compute_kzg_proof<T: EthSpec>(
kzg: &Kzg<T::Kzg>,
kzg: &Kzg,
blob: &Blob<T>,
z: Hash256,
) -> Result<(KzgProof, Hash256), KzgError> {
let z = z.0.into();
kzg.compute_kzg_proof(&ssz_blob_to_crypto_blob::<T>(blob)?, &z)
let kzg_blob = ssz_blob_to_crypto_blob::<T>(blob)?;
kzg.compute_kzg_proof(&kzg_blob, &z)
.map(|(proof, z)| (proof, Hash256::from_slice(&z.to_vec())))
}
/// Verify a `kzg_proof` for a `kzg_commitment` that evaluating a polynomial at `z` results in `y`
pub fn verify_kzg_proof<T: EthSpec>(
kzg: &Kzg<T::Kzg>,
kzg: &Kzg,
kzg_commitment: KzgCommitment,
kzg_proof: KzgProof,
z: Hash256,