import type { JwtBody, JwtHeader } from '../types';
export type Fixup = (header: JwtHeader, body: JwtBody) => void;
export interface DecodeValidators {
    aud?: typeof validateAudience;
    exp?: typeof validateExpires;
    iat?: typeof validateIssuedAt;
    nbf?: typeof validateNotBefore;
}
export interface DecodingOptions {
    expiresSkew?: number;
    expiresMax?: number;
    nbfIatSkew?: number;
    fixup?: Fixup;
    validators?: DecodeValidators;
}
export interface PublicKey {
    publicKey: string;
    expiresSkew?: number;
    expiresMax?: number;
    validators?: DecodeValidators;
}
export type ValidatorOptions = DecodingOptions & Partial<PublicKey>;
export declare function validateNotBefore(body: JwtBody, unixNow: number, options: ValidatorOptions): void | never;
export declare function validateIssuedAt(body: JwtBody, unixNow: number, options: ValidatorOptions): void | never;
export declare function validateAudience(body: JwtBody, audiences: string[]): void | never;
export declare function validateExpires(body: JwtBody, unixNow: number, options: ValidatorOptions): void | never;