METHOD AND SYSTEM FOR A SECURE POWER MANAGEMENT SCHEME
First Claim
1. A method for system management, the method comprising:
- in a device comprising a security processor and one or more component devices;
monitoring clocking and/or control signals supplied to said security processor and/or said one or more component devices; and
securely managing shut down of said security processor and/or said one or more component devices based on said monitoring, wherein said secure managing of said shut down comprises ensuring that security of said security processor and/or said one or more component devices is not compromised during said shut down.
4 Assignments
0 Petitions
Accused Products
Abstract
A security processor integrated within a system may be securely shut down. The security processor may receive shut down requests, and may determine components and/or subsystems that need be shut down during shut down periods. The security processor may determine when each of the relevant components is ready for shut down. Once the relevant components are shut down, the security processor may itself be shut down, wherein the shut down of the security processor may be performed by stopping the clocking of the security processor. A security error monitor may monitor the system during shut down periods, and the security processor may be powered back on when security breaches and/or threats may be detected via the security error monitor. The security error monitor may be enabled to power on the security processor by reactivating the security processor clock, and the security processor may then power on the system.
39 Citations
26 Claims
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1. A method for system management, the method comprising:
in a device comprising a security processor and one or more component devices; monitoring clocking and/or control signals supplied to said security processor and/or said one or more component devices; and securely managing shut down of said security processor and/or said one or more component devices based on said monitoring, wherein said secure managing of said shut down comprises ensuring that security of said security processor and/or said one or more component devices is not compromised during said shut down. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for device management, the system comprising:
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one or more processors in a device comprising a security processor and one or more component devices, wherein said one or more circuits enable monitoring of clocking and/or control signals supplied to said security processor and/or said one or more component devices; and said one or more circuits enable secure management of shut down of said security processor and/or said one or more component devices based on said monitoring, wherein said secure managing of said shut down comprises ensuring that security of said security processor and/or said one or more component devices is not compromised during said shut down. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification