import { InjectionToken } from '@angular/core';
import * as CryptoJS from 'crypto-js';
import * as i0 from "@angular/core";
export interface ICryptoData {
    key: string;
}
export declare const ENCRYPT_DATA: InjectionToken<ICryptoData>;
export declare class CryptoService {
    encryptData: ICryptoData | undefined;
    /**
     * Creates an instance of CryptoService.
     * @param {ICryptoData | undefined} encryptData
     */
    constructor(encryptData: ICryptoData | undefined);
    /**
     * Encrypts crypto service
     * @param {string} data
     * @returns CryptoJS.lib.CipherParams | string
     */
    encrypt(data: string): CryptoJS.lib.CipherParams | string;
    /**
     * Decrypts crypto service
     * @param {string} data
     * @returns string
     */
    decrypt(data: string): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<CryptoService, [{ optional: true; }]>;
    static ɵprov: i0.ɵɵInjectableDeclaration<CryptoService>;
}