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13th USENIX Security Symposium — Abstract
Pp. 89–102 of the Proceedings
Side Effects Are Not Sufficient to Authenticate Software
Umesh Shankar, Monica Chew, and J.D. Tygar, UC Berkeley
Abstract
Kennell and Jamieson recently introduced the Genuinity system for authenticating trusted software on a remote machine without using trusted hardware. Genuinity relies on machine-specific computations, incorporating side effects that cannot be simulated quickly. The system is vulnerable to a novel attack, which we call a substitution attack. We implement a successful attack on Genuinity, and further argue this class of schemes are not only impractical but unlikely to succeed without trusted hardware.
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