Internet of Things (IoT) gateways bridging resource-constrained devices and the internet, running conventional operating systems and communication protocols, are valuable targets for malicious attackers. Once compromised, the gateway can no longer be trusted to deliver data accurately to the applications running on the Cloud. In this work we present an analysis of the Gateway Integrity Checking Protocol, a gossip protocol that collects data from subsets of IoT devices, to answer a challenge sent by an External Security Agent. The response is used to check the integrity of data arriving at the Cloud from the gateway. The evaluation of the time and energy overhead, and the impact of the proposed solution on the lifetime of the network through simulations is presented. A detailed qualitative comparison against other Intrusion Detection Systems in the IoT domain is made, showing that the proposed solution can provide customizable security levels with little overhead in terms of processing power and network traffic.

物联网 (IoT) 网关将资源有限的设备与互联网连接起来，运行传统操作系统和通信协议，是恶意攻击者的宝贵目标。一旦受到威胁，就无法再信任网关将数据准确地传送到云上运行的应用程序。在这项工作中，我们对网关完整性检查协议进行了分析，这是一种从物联网设备子集收集数据的八卦协议，以回答外部安全代理发送的质询。该响应用于检查从网关到达云的数据的完整性。通过模拟评估了时间和能量开销，以及所提出的解决方案对网络寿命的影响。与物联网领域中的其他入侵检测系统进行了详细的定性比较，表明所提出的解决方案可以提供可定制的安全级别，而在处理能力和网络流量方面的开销很小。