论文标题
在便携式法拉第笼中安全且用户友好的空中固件分配
Secure and User-Friendly Over-the-Air Firmware Distribution in a Portable Faraday Cage
论文作者
论文摘要
建立大规模的无线传感器网络是具有挑战性的，因为必须分配固件并在传感器节点之间进行信任，并且需要建立后端。为了有效地执行此任务，我们提出了一种名为Box的方法，该方法利用了智能的Faraday Cage（FC）。 FC从后端获取固件图像和秘密键，用钥匙修补固件，并将这些自定义图像在空中部署到放置在FC中的传感器节点。电磁屏蔽可保护这种交换免受被动攻击者的影响。我们对传感器节点的需求很少，不需要制造商定制的其他硬件组件或固件。我们描述了这个新颖的工作流程，实现盒子和一个后端系统，并通过将销售固件批量固定到多个商业上现成的传感器节点来证明我们的方法的可行性。我们对31名具有不同背景的参与者进行了用户研究，发现我们的方法比有线连接更快，更易于用户友好。
Setting up a large-scale wireless sensor network is challenging, as firmware must be distributed and trust between sensor nodes and a backend needs to be established. To perform this task efficiently, we propose an approach named Box, which utilizes an intelligent Faraday cage (FC). The FC acquires firmware images and secret keys from a backend, patches the firmware with the keys and deploys those customized images over the air to sensor nodes placed in the FC. Electromagnetic shielding protects this exchange against passive attackers. We place few demands on the sensor node, not requiring additional hardware components or firmware customized by the manufacturer. We describe this novel workflow, implement the Box and a backend system and demonstrate the feasibility of our approach by batch-deploying firmware to multiple commercial off-the-shelf sensor nodes. We conduct a user-study with 31 participants with diverse backgrounds and find, that our approach is both faster and more user-friendly than firmware distribution over a wired connection.
