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Dyad : a system for using physically secure coprocessors

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journal contribution
posted on 01.01.1995, 00:00 by J. D. Tygar, Bennet S. Yee
Abstract: "The Dyad project at Carnegie Mellon University is using physically secure coprocessor [sic] to achieve new protocols and systemsaddressing a number of perplexing security problems. These coprocessors can be produced as boards or integrated circuit chips and can be directly inserted in standard workstation 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 workstations (2) tamper-proof accounting/audit trails (3) copy protection (4) electronic currency without centralized servers [sic] We outline the architectural requirements for the use of secure coprocessors."




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