/**
 * hmac加密用户绑定token
 * @param str
 */
export declare function encryptionUserToken(id: number, randomCode: string, time?: number): string;
/**
 * 验证用户绑定token是否合法
 * @param id 用户id
 * @param randomCode 随机码
 * @param token 验证的token
 */
export declare function verifyUserToken(id: number, randomCode: string, token: string): Promise<boolean>;