import { CryptoFactory } from "./CryptoFactory";
export declare class SignHelper {
    private adminSecret;
    private cryptoFactory;
    constructor(adminSecret: string, cryptoFactory: CryptoFactory);
    getAdminSignature(): string;
    getProviderSignature(secret: any, provider: any, userIdentifier: any): any;
    signJwt(jwtSecret: any, payload: any, expiresIn: any): string;
    verifyJwt(jwtSecret: any, token: any): any;
}