NeTS: Small: Encryption on the Air: Non-Invasive Security for Wireless Medical Devices

无线通信已成为现代植入式医疗设备的重要组成部分。然而，最近的研究表明，无线连接可以被利用来破坏imd传输数据的机密性，或者向imd发送未经授权的命令。解决这些攻击的关键挑战在于难以修改或替换已经植入的IMD。这项研究探索了在不修改设备本身的情况下保护植入式设备免受此类攻击的可行性。它开发了一种解决方案，将IMD的安全性委托给称为屏蔽的个人基站。该防护罩引入了一种新颖的无线电设计，可以干扰IMD的信息，防止其他人解码，同时自己能够解码。它还可以干扰未经授权的命令——甚至是那些试图改变防护罩自身传输的命令。该研究提供了一种新颖的全双工无线电设计，与过去的工作相比，它对天线分离没有要求，因此可以内置到可穿戴设备中。它还提供了第一个非侵入性的安全机制来保护imd ？不修改它们的通信。最后，它增加了无线医疗设备对干扰攻击、恶劣信道条件和干扰的弹性。通过使医疗设备能够利用无线通信而不会产生安全风险，该研究可以提高患者的生活质量并降低医疗保健系统的成本。更广泛的影响计划还包括学术出版物、教育计划的整合以及与医疗器械行业的合作。

Wireless communication has become an intrinsic part of modern implantable medical devices (IMDs). Recent work, however, has demonstrated that wireless connectivity can be exploited to compromise the confidentiality of IMDs' transmitted data or to send unauthorized commands to IMDs. The key challenge in addressing these attacks stems from the difficulty of modifying or replacing already-implanted IMD. This research explores the feasibility of protecting an implantable device from such attacks without modifying the device itself. It develops a solution that delegates the security of an IMD to a personal base station called the shield. The shield introduces a novel radio design that allows it to jam the IMD's messages, preventing others from decoding them while being able to decode them itself. It can also jam unauthorized commands --even those that try to alter the shield's own transmissions. The research delivers a novel full-duplex radio design that, in contrast to past work, has no requirements on antenna separation and hence can be built into a wearable device. It also delivers the first non-invasive security mechanism for securing IMDs? communications without modifying them. Finally, it increases the resilience of wireless medical devices to jamming attacks, bad channel conditions, and interference.By enabling medical devices to leverage wireless communication without incurring security risks, the research can improve the quality of life for patients and reduce the cost of healthcare systems. The broader impact plan also includes academic publications, integration in educational programs, and working with the medical device industry.