无线体域网中基于属性加密的数据访问控制方案

Attribute-based encryption access control scheme in wireless body area networks

作为一种新的电子医疗技术,无线体域网(wireless body area networks,WBANs)将在病情监测中发挥重要作用,安全性及隐私性保护是无线体域网的重要内容。针对WBANs数据访问控制提出一种细粒度的数据访问方法,该方法采用基于属性的数据加密方法,加密者将数据访问结构作为访问策略,当解密者所具有的属性满足该结构时,即可访问该数据,否则,拒绝用户访问。分别从正确性、安全性及能量消耗三方面对方案进行分析。仿真实验结果表明,本方案相对其他方案能量消耗较小。

WBANs have emerged as a new technology for e-healthcare and will play an important role in the patient-healthy monitoring. Security and privacy protection is a major concern. This paper proposed a fine-grained data access control method, which implied the attribute-based encryption. The encryptor set the access structure as access policy, and the user decrypted the ciphertext with attributes. If the attributes satisfied the structure, the user could get the medical data, otherwise, the user could not. This paper analyzed the scheme in correctness, security and energy consumption. The simulation experiment results show that the scheme is efficient in energy consumption to others.