Tamper Resistance Mechanisms for Secure, Embedded Systems

  • Authors:
  • Srivaths Ravi;Anand Raghunathan;Srimat Chakradhar

  • Affiliations:
  • -;-;-

  • Venue:
  • VLSID '04 Proceedings of the 17th International Conference on VLSI Design
  • Year:
  • 2004

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Abstract

To secure digital assets, a tasteful integration of a variety of technologiesand processes is necessary. Tamper-resistance is being increasinglyused as an important piece of a more comprehensive securitysystem. It provides an effective barrier to entry and protectsdigital assets in the embedded systems from most people and mostattacks. Embedded systems pose unique security challenges becausethey are largely used in relationships where one party wantsto put a secure, embedded device, in the hands of another, withthe assurance that the second party cannot modify/hack the device.First, we outline the major attacks that threaten the security of anembedded system. The vulnerability landscape of an embeddedsystem is a vast expanse of attacks. A good understanding of thethreats is necessary so that countermeasures can be devised to protectagainst threats that pose the greatest risk. Second, we presentcountermeasures and discuss their effectiveness in protecting thecrown jewels of an embedded system: boot code, operating systemsoftware and embedded hardware. A clear understanding of attacksand countermeasures enables a system architect to make rationalinvestment decisions in designing a secure, embedded system.