摘要
在传感网的一些关键的应用中,数据访问控制是必不可少的,因为非法访问敏感的数据可以会导致灾难性的后果或是法律所禁止的.提出一种基于数据特征表达式的访问控制机制,数据按照特征进行划分,并将加密密钥与某种特征表达式关联.只有匹配特征表达式的密钥才能解密数据.节点利用密钥相关的访问控制策略判断用户查询的合法性以及撤销恶意的用户.实验结果表明方案具有较好的抗攻击性和扩展性,实现对数据精细地访问控制.
In some critical applications of wireless sensor networks,data access control is a necessary service,because illegal access to sensitive data will lead to disastrous consequences or forbidden by the law.A characteristic expression based data access control mechanism is proposed by exploring the inherent nature of sensor data,and correlate the encryption key to specific characteristic expression,only the key matches the expression can decrypt the corresponding data.Senor nodes use key related access control strategy to verify the legitimacy of user and revoke the malicious users.Performance results demonstrate that the proposed scheme is resilience to various attacks,and achieves a fine grained data access control.
出处
《闽江学院学报》
2013年第2期92-97,共6页
Journal of Minjiang University
基金
福建省教育厅科技规划项目(JA05314)
福建省重点学科"计算机应用技术"基金
关键词
数据安全
访问控制
特征表达
无线传感网
data security
access control
characteristic expression
wireless sensor networks
