/// <reference types="node" resolution-mode="require"/>
import { HalfKeyChallenge } from '@hoprnet/hopr-utils';
import type { PeerId } from '@libp2p/interface-peer-id';
export declare class AcknowledgementChallenge {
    private ackChallenge;
    private signature;
    private constructor();
    static get SIZE(): number;
    static deserialize(preArray: Uint8Array | Buffer, ackChallenge: HalfKeyChallenge, pubKey: PeerId): AcknowledgementChallenge;
    serialize(): Uint8Array;
    static create(ackChallenge: HalfKeyChallenge, privKey: PeerId): AcknowledgementChallenge;
    solve(secret: Uint8Array): boolean;
    clone(): AcknowledgementChallenge;
}
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