Exploring Trusted Platform Module Capabilities: A Theoretical and Experimental Study

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Trusted platform modules (TPMs) are hardware modules that are bound to a computer's motherboard, that are being included in many desktops and laptops. Augmenting computers with these hardware modules adds powerful functionality in distributed settings, allowing us to reason about the security of these systems in new ways. In this dissertation, I study the functionality of TPMs from a theoretical as well as an experimental perspective. On the theoretical front, I leverage various features of TPMs to construct applications like random oracles that are impossible to implement in a standard model of computation. Apart from random oracles, I construct a ... continued below

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Gunupudi, Vandana May 2008.

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  • Gunupudi, Vandana

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Trusted platform modules (TPMs) are hardware modules that are bound to a computer's motherboard, that are being included in many desktops and laptops. Augmenting computers with these hardware modules adds powerful functionality in distributed settings, allowing us to reason about the security of these systems in new ways. In this dissertation, I study the functionality of TPMs from a theoretical as well as an experimental perspective. On the theoretical front, I leverage various features of TPMs to construct applications like random oracles that are impossible to implement in a standard model of computation. Apart from random oracles, I construct a new cryptographic primitive which is basically a non-interactive form of the standard cryptographic primitive of oblivious transfer. I apply this new primitive to secure mobile agent computations, where interaction between various entities is typically required to ensure security. I prove these constructions are secure using standard cryptographic techniques and assumptions. To test the practicability of these constructions and their applications, I performed an experimental study, both on an actual TPM and a software TPM simulator which has been enhanced to make it reflect timings from a real TPM. This allowed me to benchmark the performance of the applications and test the feasibility of the proposed extensions to standard TPMs. My tests also show that these constructions are practical.

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  • May 2008

Added to The UNT Digital Library

  • Oct. 2, 2008, 4:42 p.m.

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  • Oct. 31, 2008, 4:47 p.m.

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Gunupudi, Vandana. Exploring Trusted Platform Module Capabilities: A Theoretical and Experimental Study, dissertation, May 2008; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc6101/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .