堡垒:加固防篡改信封嵌入安全传感器

Kathrin Garb, J. Obermaier, Elischa Ferres, Martin Künig
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引用次数: 3

摘要

保护安全模块免受硬件级别的攻击是一项非常具有挑战性的工作,因为攻击者可以通过物理访问直接操纵设备。为了解决这个问题,已经开发了不同的物理安全外壳,其目标是覆盖整个硬件模块,从而保护它们免受外部操作。新颖的概念是无电池,基于物理不可克隆功能(puf),旨在克服过去设备最严重的缺点;需要主动监控,因此,有限的电池寿命。尽管基于puf的机箱的某些方面已经取得了一些进展,但所有所需组件的组合和集成以及硬件安全模块(hsm)的相应架构的创建仍然是一个悬而未决的问题。在本文中,我们介绍了FORTRESS,一种基于puf的HSM,它将基于puf的篡改敏感电容性包络及其嵌入式安全传感器IC集成到一个安全架构中。我们的概念提出了一个安全的生命周期概念,包括发货方面,具有重新注册功能的完整密钥生成方案,以及我们的下一代嵌入式密钥管理系统。与堡垒,我们采取下一步的生产操作的puf为基础的hsm。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
FORTRESS: FORtified Tamper-Resistant Envelope with Embedded Security Sensor
Protecting security modules from attacks on the hardware level presents a very challenging endeavor since the attacker can manipulate the device directly through physical access. To address this issue, different physical security enclosures have been developed with the goal to cover entire hardware modules and, hence, protect them from external manipulation.Novel concepts are battery-less and based on Physical Unclonable Functions (PUFs), aiming at overcoming the most severe drawbacks of past devices; the need for active monitoring and, thus, limited battery life-time. Although some progress has already been made for certain aspects of PUF-based enclosures, the combination and integration of all required components and the creation of a corresponding architecture for Hardware Security Modules (HSMs) is still an open issue. In this paper, we present FORTRESS, a PUF-based HSM that integrates the tamper-sensitive capacitive PUF-based envelope and its embedded security sensor IC into a secure architecture. Our concept proposes a secure life cycle concept including shipment aspects, a full key generation scheme with re-enrollment capabilities, and ourthe next generation Embedded Key Management System. With FORTRESS, we take the next step towards the productive operation of PUF-based HSMs.
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