@lodestar/beacon-node/lib/util/sszBytes.d.ts

A Typescript implementation of the beacon chain

import { BitArray } from "@chainsafe/ssz";
import { ChainForkConfig } from "@lodestar/config";
import { ForkName } from "@lodestar/params";
import { BLSSignature, CommitteeIndex, RootHex, Slot, ValidatorIndex } from "@lodestar/types";
export type BlockRootHex = RootHex;
export type AttDataBase64 = string;
export type CommitteeBitsBase64 = string;
/** `attestation.data.index` from gossip-serialized attestations / aggregates */
export type AttDataIndex = number;
export declare const ROOT_SIZE = 32;
/**
 * Extract slot from attestation serialized bytes.
 * Return null if data is not long enough to extract slot.
 */
export declare function getSlotFromAttestationSerialized(data: Uint8Array): Slot | null;
/**
 * Extract block root from attestation serialized bytes.
 * Return null if data is not long enough to extract block root.
 */
export declare function getBlockRootFromAttestationSerialized(data: Uint8Array): BlockRootHex | null;
/**
 * Extract attestation data base64 from all forks' attestation serialized bytes.
 * Return null if data is not long enough to extract attestation data.
 */
export declare function getAttDataFromAttestationSerialized(data: Uint8Array): AttDataBase64 | null;
/**
 * Extract AttDataBase64 from `beacon_attestation` gossip message serialized bytes.
 * This is used for GossipQueue.
 */
export declare function getBeaconAttestationGossipIndex(fork: ForkName, data: Uint8Array): AttDataBase64 | null;
/**
 * Extract slot from `beacon_attestation` gossip message serialized bytes.
 */
export declare function getSlotFromBeaconAttestationSerialized(fork: ForkName, data: Uint8Array): Slot | null;
/**
 * Extract block root from `beacon_attestation` gossip message serialized bytes.
 */
export declare function getBlockRootFromBeaconAttestationSerialized(fork: ForkName, data: Uint8Array): BlockRootHex | null;
/**
 * Extract aggregation bits from attestation serialized bytes.
 * Return null if data is not long enough to extract aggregation bits.
 * Pre-electra attestation only
 */
export declare function getAggregationBitsFromAttestationSerialized(data: Uint8Array): BitArray | null;
/**
 * Extract signature from attestation serialized bytes.
 * Return null if data is not long enough to extract signature.
 */
export declare function getSignatureFromAttestationSerialized(data: Uint8Array): BLSSignature | null;
/**
 * Extract slot from SingleAttestation serialized bytes.
 * Return null if data is not long enough to extract slot.
 */
export declare function getSlotFromSingleAttestationSerialized(data: Uint8Array): Slot | null;
/**
 * Extract committee index from SingleAttestation serialized bytes.
 * Return null if data is not long enough to extract the committee index.
 */
export declare function getCommitteeIndexFromSingleAttestationSerialized(fork: ForkName, data: Uint8Array): CommitteeIndex | null;
/**
 * Extract data index from SingleAttestation serialized bytes.
 * Post-gloas, `data.index` field is repurposed:
 *   - 0 - payload was not available (or attestation is same-slot, where availability is not yet known)
 *   - 1 - payload was available
 * Return null if data is not long enough to extract the index.
 */
export declare function getDataIndexFromSingleAttestationSerialized(fork: ForkName, data: Uint8Array): AttDataIndex | null;
/**
 * Extract attester index from SingleAttestation serialized bytes.
 * Return null if data is not long enough to extract index.
 */
export declare function getAttesterIndexFromSingleAttestationSerialized(data: Uint8Array): ValidatorIndex | null;
/**
 * Extract block root from SingleAttestation serialized bytes.
 * Return null if data is not long enough to extract block root.
 */
export declare function getBlockRootFromSingleAttestationSerialized(data: Uint8Array): BlockRootHex | null;
/**
 * Extract attestation data base64 from SingleAttestation serialized bytes.
 * Return null if data is not long enough to extract attestation data.
 */
export declare function getAttDataFromSingleAttestationSerialized(data: Uint8Array): AttDataBase64 | null;
/**
 * Extract signature from SingleAttestation serialized bytes.
 * Return null if data is not long enough to extract signature.
 */
export declare function getSignatureFromSingleAttestationSerialized(data: Uint8Array): BLSSignature | null;
/**
 * Extract slot from signed aggregate and proof serialized bytes
 * Return null if data is not long enough to extract slot
 * This works for both phase + electra
 */
export declare function getSlotFromSignedAggregateAndProofSerialized(data: Uint8Array): Slot | null;
/**
 * Extract block root from signed aggregate and proof serialized bytes
 * Return null if data is not long enough to extract block root
 * This works for both phase + electra
 */
export declare function getBlockRootFromSignedAggregateAndProofSerialized(data: Uint8Array): BlockRootHex | null;
/**
 * Extract data index from signed aggregate and proof serialized bytes.
 * Return null if data is not long enough to extract the index.
 * This works for both phase0 + electra (index is in attestation data at the same offset).
 */
export declare function getDataIndexFromSignedAggregateAndProofSerialized(data: Uint8Array): AttDataIndex | null;
/**
 * Extract AttestationData base64 from SignedAggregateAndProof for electra
 * Return null if data is not long enough
 */
export declare function getAttDataFromSignedAggregateAndProofElectra(data: Uint8Array): AttDataBase64 | null;
/**
 * Extract CommitteeBits base64 from SignedAggregateAndProof for electra
 * Return null if data is not long enough
 */
export declare function getCommitteeBitsFromSignedAggregateAndProofElectra(data: Uint8Array): CommitteeBitsBase64 | null;
/**
 * Extract attestation data base64 from signed aggregate and proof serialized bytes.
 * Return null if data is not long enough to extract attestation data.
 */
export declare function getAttDataFromSignedAggregateAndProofPhase0(data: Uint8Array): AttDataBase64 | null;
export declare function getSlotFromSignedBeaconBlockSerialized(data: Uint8Array): Slot | null;
export declare function getParentRootFromSignedBeaconBlockSerialized(data: Uint8Array): RootHex | null;
export declare function getParentBlockHashFromGloasSignedBeaconBlockSerialized(data: Uint8Array): RootHex | null;
export declare function getSlotFromBlobSidecarSerialized(data: Uint8Array): Slot | null;
export declare function getSlotFromDataColumnSidecarSerialized(data: Uint8Array, fork: ForkName): Slot | null;
export declare function getBeaconBlockRootFromDataColumnSidecarSerialized(data: Uint8Array): RootHex | null;
export declare function getSlotFromExecutionPayloadEnvelopeSerialized(data: Uint8Array): Slot | null;
export declare function getBeaconBlockRootFromExecutionPayloadEnvelopeSerialized(data: Uint8Array): RootHex | null;
export declare function getLastProcessedSlotFromBeaconStateSerialized(data: Uint8Array): Slot | null;
export declare function getSlotFromBeaconStateSerialized(data: Uint8Array): Slot | null;
export declare function getSlotFromPayloadAttestationMessageSerialized(data: Uint8Array): Slot | null;
export declare function getPayloadPresentFromPayloadAttestationMessageSerialized(data: Uint8Array): boolean | null;
export declare function getBlockRootFromPayloadAttestationMessageSerialized(data: Uint8Array): RootHex | null;
export declare function getSlotFromSignedExecutionPayloadBidSerialized(data: Uint8Array): Slot | null;
export declare function getParentBlockHashFromSignedExecutionPayloadBidSerialized(data: Uint8Array): RootHex | null;
export declare function getParentBlockRootFromSignedExecutionPayloadBidSerialized(data: Uint8Array): RootHex | null;
export declare function getBlobKzgCommitmentsCountFromSignedBeaconBlockSerialized(config: ChainForkConfig, blockBytes: Uint8Array): number;
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