diff --git a/specs/eip4844/beacon-chain.md b/specs/eip4844/beacon-chain.md index ad8731736..2aa5723e6 100644 --- a/specs/eip4844/beacon-chain.md +++ b/specs/eip4844/beacon-chain.md @@ -20,6 +20,7 @@ - [`BeaconBlockBody`](#beaconblockbody) - [Helper functions](#helper-functions) - [KZG core](#kzg-core) + - [`lincomb`](#lincomb) - [`blob_to_kzg`](#blob_to_kzg) - [`kzg_to_versioned_hash`](#kzg_to_versioned_hash) - [Misc](#misc) @@ -108,7 +109,7 @@ class BeaconBlockBody(Container): KZG core functions. These are also defined in EIP-4844 execution specs. -#### `blob_to_kzg` +#### `lincomb` ```python def lincomb(points: List[KZGCommitment], scalars: List[BLSFieldElement]) -> KZGCommitment: @@ -119,7 +120,11 @@ def lincomb(points: List[KZGCommitment], scalars: List[BLSFieldElement]) -> KZGC for x, a in zip(points, scalars): r = bls.add(r, bls.multiply(x, a)) return r +``` +#### `blob_to_kzg` + +```python def blob_to_kzg(blob: Blob) -> KZGCommitment: return lincomb(blob, KZG_SETUP_LAGRANGE) ```