Turtles All The Way Down: Research Challenges in UserBased Attestation

2nd USENIX Workshop on Hot Topics in Security

Jonathan M. McCune Adrian Perrig Arvind Seshadri Leendert van Doorn

PID  :  81300

来源: CEUR

【 摘 要 】

Current trusted computing technologies allow comput ing devices to verify each other, but in a networked world, there is no reason to trust one computing device any more than another. Treating these devices as turtles, the user who seeks a trustworthy system from which to verify oth ers quickly realizes that it’s turtles all the way down because of the endless loop of trust dependencies. We need to provide the user with one initial turtle (the iTur tle) which is axiomatically trustworthy, thereby breaking the dependency loop. In this paper, we present some of the research challenges involved in designing and using