Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Central trusted authority provides computer authentication
Reexamination Certificate
2005-06-29
2009-08-04
Dada, Beemnet W (Department: 2435)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Central trusted authority provides computer authentication
C713S175000, C713S180000
Reexamination Certificate
active
07571312
ABSTRACT:
A virtual manufacturer authority is launched in a protected portion of a processing system. A key for the virtual manufacturer authority is created. The key is protected by a security coprocessor of the processing system, such as a trusted platform module (TPM). Also, the key is bound to a current state of the virtual manufacturer authority. A virtual security coprocessor is created in the processing system. A delegation request is transmitted from the processing system to an external processing system, such as a certificate authority (CA). After transmission of the delegation request, the key is used to attest to trustworthiness of the virtual security coprocessor. Other embodiments are described and claimed.
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Scarlata Vincent R.
Wiseman Willard M.
Dada Beemnet W
Intel Corporation
Trop Pruner & Hu P.C.
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