/// <reference types="node" />
import { GenerateHotpUriParameters } from './generateUri';
declare type BuildHotpParameters = {
    secret: Buffer;
    digits?: number;
    hmacAlgorithm?: 'sha1' | 'sha256' | 'sha512';
};
export declare const buildHotp: ({ secret, digits, hmacAlgorithm }: BuildHotpParameters) => {
    generate: (counter?: number) => string;
    verify: (input: string, counter?: number) => boolean;
    uri: ({ label, issuer }: Pick<GenerateHotpUriParameters, "issuer" | "label">) => string;
};
export {};