import { GameCenterAuth, IGameCenterService } from "./IGameCenterService";
export declare class GameCenterService implements IGameCenterService {
    private publicKeyCache;
    private bundleId;
    constructor();
    init(request: {
        bundleId: string;
    }): void;
    verifyToken(auth: GameCenterAuth): Promise<{
        [k: string]: any;
    }>;
    private concatSignatureAndVerify;
    private toBigEndian;
    private getCertificate;
    private validatePublicKeyUrl;
    private getPublicKeyFromCache;
    private convertX509CertToPEM;
    private downloadPublicKey;
}