import { type JWTPayload } from 'jose';
/**
 * Authentication utilities composable
 * Provides functions for token generation, verification, and storage
 * Syncs token between localStorage and cookies for universal authentication
 */
export declare const useAuthentication: () => {
    generateToken: (payload: JWTPayload, secretKey: string, expiresIn?: string) => Promise<string>;
    verifyToken: (token: string, secretKey: string) => Promise<boolean>;
    decodeToken: (token: string) => JWTPayload | null;
    setToken: (token: string, expiresInDays?: number) => void;
    getToken: () => string | null;
    removeToken: () => void;
    user: import("vue").Ref<{
        [x: string]: unknown;
        iss?: string | undefined;
        sub?: string | undefined;
        aud?: string | string[] | undefined;
        jti?: string | undefined;
        nbf?: number | undefined;
        exp?: number | undefined;
        iat?: number | undefined;
    } | null, JWTPayload | {
        [x: string]: unknown;
        iss?: string | undefined;
        sub?: string | undefined;
        aud?: string | string[] | undefined;
        jti?: string | undefined;
        nbf?: number | undefined;
        exp?: number | undefined;
        iat?: number | undefined;
    } | null>;
};