Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Security kernel or utility
Reexamination Certificate
2006-08-08
2006-08-08
Moise, Emmanuel L. (Department: 2137)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Security kernel or utility
C713S189000
Reexamination Certificate
active
07089419
ABSTRACT:
A technique is provided for facilitating secure operation of an integrated system. The technique includes passing a request for data through a data access controller incorporated within the integrated system, and selectively qualifying the request in accordance with a security state of the controller. The security state of the controller is one state of multiple possible security states, including a null state and a secured state. In the secured state, the controller replaces a standard boot code address associated with a request for boot code with a substitute boot code address. The substitute boot code address addresses an encrypted version of boot code, which is then decrypted by the controller employing a master key set held at the controller. When transitioning to the null state, the master key set is erased.
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Foster Eric M.
Hall William E.
Rosu Marcel-Catalin
Abyaneh Ali
Heslin Rothenberg Farley & & Mesiti P.C.
Moise Emmanuel L.
Radigan, Esq. Kevin P.
Steinberg, Esq. William H.
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