Protected computing environment

Title: Protected computing environment

Related Patent Categories: Electrical Computers And Digital Processing Systems: Support, Multiple Computer Communication Using Cryptography, Security Kernel Or Utility

Brief Patent Description - Full Patent Description - Patent Claims

The Patent Description & Claims data below is from USPTO Patent Application 20060242406, Protected computing environment.

1. A method of establishing a protected environment within a computing device comprising: validating a kernel component loaded into a kernel of the computing device; establishing a security state for the kernel based on the validation; creating a secure process and loading a software component into the secure process; periodically checking the security state of the kernel; and notifying the secure process when the security state of the kernel has changed.

2. The method of establishing a protected environment within a computing device of claim 1, in which validating a kernel component loaded into a kernel of the computing device further comprises setting a kernel secure flag.

3. The method of establishing a protected environment within a computing device of claim 2 in which periodically checking the security state of the kernel further comprises checking the kernel secure flag.

4. The method of establishing a protected environment within a computing device of claim 1, in which the kernel component includes a loader.

5. The method of establishing a protected environment within a computing device of claim 1, in which the software component is a trusted media component.

6. A method of loading kernel components to create a secure computing environment comprising: setting a kernel secure flag to a true state: checking to determine if a debugger is present in an operating system; and checking to see if a debug credential associated with the debugger is present.

7. The method of loading kernel components to create a secure computing environment of claim 6, further comprising, setting the kernel secure flag to a false state if a debug credential is not present.

8. The method of loading kernel components to create a secure computing environment of claim 6, further comprising: determining that there is another component to load; validating a signature of the component; verifying that a certificate is valid; determining if the signature is on a revocation list; and determining if the certificate in on the revocation list.

9. The method of loading kernel components to create a secure computing environment of claim 8, further comprising: determining if the signature is acceptable for use; determining if the is acceptable for use; and loading the component into the kernel.

10. A method of creating a protected environment comprising: creating a protected environment for loading a component; checking the validity of a signature; checking the validity of a certificate; checking to see if the signature is in a revocation list; checking to see if the certificate is in the revocation list; checking to see that the signature is acceptable for use checking to see that a certificate is acceptable for use; setting a kernel secure flag; and loading the component into the protected environment.

11. The method of creating a protected environment for loading a component of claim 10, in which the kernel secure flag is set to a false state if checking the validity of the signature fails.

12. The method of creating a protected environment for loading a component of claim 10, in which the kernel secure flag is set to a false state if checking the validity of a certificate fails.

13. The method of creating a protected environment for loading a component of claim 10, in which the kernel secure flag is set to a false state if checking to see if the certificate is in the revocation list fails.

14. The method of creating a protected environment for loading a component of claim 10, in which the kernel secure flag is set to a false state if checking to see that the signature is acceptable for use fails.

15. The method of creating a protected environment for loading a component of claim 10, in which the kernel secure flag is set to a false state if checking to see that the certificate is acceptable for use fails.

16. The method of creating a protected environment for loading a component of claim 10, in which the component is a portion of a media application.

17. The method of creating a protected environment for loading a component of claim 10, further comprising periodically checking a security state of the protected environment.

18. The method of creating a protected environment for loading a component of claim 17, in which periodically checking the security state of the protected environment further comprises checking the kernel secure flag.

19. The method of creating a protected environment for loading a component of claim 18, in which periodically checking the security state of the protected environment further comprises submitting a call of a calling process to a kernel.

20. The method of creating a protected environment for loading a component of claim 19, in which the calling process to the kernel is checked to determine if it is secure.

Brief Patent Description - Full Patent Description - Patent Claims

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Previous Patent Application:
Peer-to-peer authentication and authorization
Next Patent Application:
Cryptographic key management
Industry Class:
Electrical computers and digital processing systems: support

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