关键词: 网络数据库 数据安全 防火墙 数据加密 身份验证 数字签名 安全研究 传输过程 非对称加密算法 包过滤技术

Abstract: This paper puts forward that combining the packet filtering technology of firewall with symmetrical encryption algorithm and asymmetry encryption algorithm of data encryption, and by combination the chain to encrypt with the end-to-end enerypfion to achie

Key words: Network database, Database security, Firewa11, Data encryption, Identification, Digital signature