import { TOTPOptions, Algorithm } from "@src/types";
import { Secret } from "./secret";
declare class TOTP {
    #private;
    algorithm: Algorithm;
    digits: number;
    window: number;
    duration: number;
    issuer: string;
    account: string;
    constructor({ algorithm, window, duration, digits, issuer, account, }?: Partial<TOTPOptions>);
    get defaults(): Readonly<TOTPOptions>;
    generate({ secret, timestamp, algorithm, digits, duration, }: {
        secret: Secret;
        timestamp?: number;
        algorithm?: Algorithm;
        digits?: number;
        duration?: number;
    }): string;
    validate({ token, secret, timestamp, algorithm, digits, duration, window, }: {
        token: string;
        secret: Secret;
        timestamp?: number;
        algorithm?: Algorithm;
        digits?: number;
        duration?: number;
        window?: number;
    }): boolean;
    compare({ token, secret, timestamp, algorithm, digits, duration, window, }: {
        token: string;
        secret: Secret;
        timestamp?: number;
        algorithm?: Algorithm;
        digits?: number;
        duration?: number;
        window?: number;
    }): number | null;
    equals({ token, secret, timestamp, algorithm, digits, duration, }: {
        token: string;
        secret: Secret;
        timestamp: number;
        algorithm?: Algorithm;
        digits?: number;
        duration: number;
    }): boolean;
    timeUsed({ timestamp, duration, }?: {
        timestamp?: number;
        duration?: number;
    }): number;
    timeRemaining({ timestamp, duration, }?: {
        timestamp?: number;
        duration?: number;
    }): number;
    keyUri({ secret, account, issuer, algorithm, duration, digits, }: {
        secret: Secret;
        account: string;
        issuer?: string;
        algorithm?: Algorithm;
        duration?: number;
        digits?: number;
    }): string;
}
export { TOTP };