import crypto, { KeyLike } from "crypto";
import type { TapoDeviceKey } from "./types";
export declare const generateKeyPair: () => Promise<crypto.KeyPairExportResult<crypto.DHKeyPairOptions>>;
export declare const encrypt: (data: any, deviceKey: TapoDeviceKey) => string;
export declare const decrypt: (data: string, deviceKey: TapoDeviceKey) => any;
export declare const readDeviceKey: (pemKey: string, privateKey: KeyLike) => Buffer;
export declare const base64Encode: (data: string) => string;
export declare const base64Decode: (data: string) => string;
export declare const shaDigest: (data: string) => string;