Category: CMUTR
Institution: Department of Computer Science, Carnegie
        Mellon University
Abstract: The Dyad project at Carnegie Mellon University is using 
        physically secure coprocessors to achieve new protocols and
        systems addressing a number of perplexing security problems.
        These coprocessors can be produced as boards or integrated
        circuit chips and can be directly inserted in standard worksta-
        tions or PC-style computers. This paper presents a set of 
        security problems and easily implementable solutions that 
        exploit the power of physically secure coprocessors: (1)
        protecting the integrity of publicly accessible wrorkstations,
        (2) tamper-proof accounting/audit trails, (3) copy protection,
        and (4) electronic currency without centralized servers. We 
        outline the architectural requirements for the use of secure 
        coprocessors.
Number: CMU-CS-91-140R
Bibtype: TechReport
Month: may
Author: J. D. Tygar
        Bennet Yee
Title: Dyad: A System for Using Physically Secure
        Coprocessors
Year: 1991
Address: Pittsburgh, PA
Super: @CMUTR