/**
 * 加密
 * @param val 明文密码
 */
export declare function encryptedUserPassword(val: string, salt?: string): Promise<string>;
/**
 * 验证
 * @param encryptePassword 加密后密码
 * @param plaintextPassword 原始的密码
 */
export declare function verifyUserPassword(encryptePassword: string, plaintextPassword: string, salt?: string): Promise<boolean>;