CAREER: Computational RFID for Securing Zero-Power Pervasive Devices

这项研究推进了在零功率设备上可靠地执行通用计算和通信的知识和能力，这些设备依赖于存储在电容器等极小水库中的收获能量。 计算RFID（CRFID）是一种零功率设备，它可以收集射频能量并承受连续的电源中断。 每秒RAM的完全丢失使得计算检查点的概念成为这种计算模型的基础。 一个重要的问题是如何以安全和隐私保护的方式执行有效的计算和检查点。 最根本的问题是：如何在零功耗设备上安全地向前推进计算？利用计算RFID的能量中心属性的检查点策略的探索将为设计用于普适设备的安全软件和系统奠定坚实的基础。 除了安全和隐私，该研究还试图确定在实际意义上可以在资源极其有限的设备上解决哪些计算问题。 虽然实验的重点是计算RFID，但许多技术也将广泛应用于带电池的设备。这项工作的影响将导致在低功耗，不可信的基础设施中提高计算的安全性。 预期的结果将在安全、隐私和低功耗计算的交叉点上发表。 潜在的应用包括：（1）植入式医疗设备和（2）嵌入桥梁和道路混凝土组件中的传感器的安全性和隐私性。

This research advances the knowledge and capability for securelyperforming general-purpose computation and communication on zero-powerdevices that rely on harvested energy stored in extremely smallreservoirs such as capacitors. A type of zero-power device,computational RFIDs (CRFIDs) harvest RF energy and endure continualinterruptions to power. Complete loss of RAM on the order of everysecond makes the notion of a computational checkpoint fundamental tothis model of computing. A significant problem is how to performeffective computation and checkpoints in a secure andprivacy-preserving manner. The most fundamental question is: how tosecurely make forward progress of computation on zero-power devices?The exploration of checkpointing strategies that exploit theenergy-centric properties of computational RFIDs will lay a solidfoundation for designing secure software and systems for pervasivedevices. Beyond security and privacy, the research seeks to discoverwhat kinds of computational problems can be solved in a practicalsense on extremely resource-constrained devices. While theexperiments focus on computational RFIDs, many of the techniques willapply broadly to devices with batteries as well.The impact of this work will lead to improved security for computationin low-power, untrusted infrastructure. The expected results will bepublished in venues at the intersection of security & privacy andlow-power computation. Potential applications include improvedsecurity and privacy for (1) implantable medical devices and (2)sensors embedded in concrete components of bridges and roads.