移动终端网络可生存数据库安全防篡改仿真

MobileTerminal Network Survivable Database Security Anti-Tampering Simulation

采用当前方法对可生存数据库进行安全保护时,存在对数据加密所用的时间较长、数据在数据库中的可用度较低、加密效率低和有效性差的问题,为此提出移动终端网络可生存数据库安全防篡改方法。在流控思想的基础上计算用户在可生存数据库中的可信度,通过令牌漏桶算法对用户请求进行排序,降低请求队列在数据库中的拥塞程度,在请求队列排序和用户可信度的基础上确定数据库中请求的转发总数,通过可信度管理、队列管理和请求转发管理构成可生存数据库的第一道防线。在集中式认证机制的基础上引入时间戳动态因子,采用混合动态数据加密算法对数据库中的数据进行加密,实现移动终端网络可生存数据库的安全防篡改保护。仿真结果表明,所提方法的加密效率高、有效性好。

This article proposed an anti-tampering method for the security of survivable database in mobile termi-nal network.Firstly,we calculated the credibility of user in survivable database based on the flow control idea.Sec-ondly,we sorted the user request through the token bucket algorithm,and thus to reduce the congestion level of re-quest queue in database.Thirdly,we determined the total number of forwarding requests in database based on the re-quest queue order and user credibility.Then we used credibility management,queue management,and request for-warding management to constitute the first line of defense for the survivable database.Based on the centralized au-thentication mechanism,we introduced the timestamp dynamic factor and used the mixed dynamic data encryption al-gorithm to encrypt the data in database.Finally,we achieved the tamper protection of the survivable database in mo-bile terminal network.Simulation results show that the proposed method has high encryption efficiency and good valid-ity.