import { Account } from './Account';
import { Request } from './Request';
export declare class HTTPSignature {
    protected request: Request;
    protected headers: Array<string>;
    protected account: Account;
    protected params: Object;
    protected clockSkew: number;
    constructor(request: Request, headerNames?: Array<string>);
    getParams(): Object;
    getParam(param: string): string;
    signWith(account: Account, algorithm?: string): string;
    getMessage(): string;
    verify(): boolean;
    protected getHeaders(): Array<string>;
    protected assertParams(): boolean;
    assertSignatureAge(): boolean;
    protected getAccount(): Account;
}