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PrivHome: Privacy-Preserving Authenticated Communication in Smart Home Environment

机译:PRIVHOME:智能家庭环境中保留验证经过身份验证的通信

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Y A smart home enables users to access devices such as lighting, HVAC, temperature sensors, and surveillance camera. It provides a more convenient and safe living environment for users. Security and privacy, however, is a key concern since information collected from these devices are normally communicated to the user through an open network (i.e. Internet) or system provided by the service provider. The service provider may store and have access to these information. Emerging smart home hubs such as Samsung SmartThings and Google Home are also capable of collecting and storing these information. Leakage and unauthorized access to the information can have serious consequences. For example, the mere timing of switching on/off of an HVAC unit may reveal the presence or absence of the home owner. Similarly, leakage or tampering of critical medical information collected from wearable body sensors can have serious consequences. Encrypting these information will address the issues, but it also reduces utility since queries is no longer straightforward. Therefore, we propose a privacy-preserving scheme, PrivHome. It supports authentication, secure data storage and query for smart home systems. PrivHome provides data confidentiality as well as entity and data authentication to prevent an outsider from learning or modifying the data communicated between the devices, service provider, gateway, and the user. It further provides privacy-preserving queries in such a way that the service provider, and the gateway does not learn content of the data. To the best of our knowledge, privacy-preserving queries for smart home systems has not been considered before. Under our scheme is a new, lightweight entity and key-exchange protocol, and an efficient searchable encryption protocol. Our scheme is practical as both protocols are based solely on symmetric cryptographic techniques. We demonstrate efficiency and effectiveness of our scheme based on experimental and simulation results, as well as comparisons to existing smart home security protocols.
机译:y智能家居使用户能够访问照明,HVAC,温度传感器和监控摄像机等设备。它为用户提供了更方便和安全的生活环境。然而,安全性和隐私是关键问题,因为从这些设备收集的信息通常通过服务提供商提供的开放网络(即Internet)或系统通信给用户。服务提供商可以存储并可以访问这些信息。新兴智能家居中心等三星Smartrate和Google Home也能够收集和存储这些信息。泄漏和未经授权访问信息可能会产生严重后果。例如,仅开启/关闭HVAC单元的开关时的时间可以揭示房主的存在或不存在。类似地,从可穿戴物体传感器收集的关键医疗信息的泄漏或篡改可能具有严重后果。加密这些信息将解决问题,但它也会减少实用程序,因为查询不再直接。因此,我们提出了隐私保留计划,PRIVHOME。它支持智能家居系统的身份验证,安全数据存储和查询。 PRIVHOME提供数据机密性以及实体和数据身份验证,以防止外人学习或修改设备,服务提供商,网关和用户之间传递的数据。它还以这样的方式提供隐私保留查询,使得服务提供商和网关不学习数据内容。据我们所知,智能家居系统的隐私保留查询尚未考虑。根据我们的计划,是一种新的轻量级实体和密钥交换协议,以及有效的可搜索的加密协议。我们的计划是实用的,因为这两个协议都仅基于对称加密技术。我们基于实验和仿真结果展示了我们方案的效率和有效性,以及对现有智能家庭安全协议的比较。

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