Apparatus and method for preventing disclosure of protected...

Details Apparatus and method for preventing disclosure of protected... Apparatus and method for preventing disclosure of protected...

2005-03-22

2005-03-22

Wright, Norman M. (Department: 2134)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Security kernel or utility

C713S166000, C713S165000, C713S152000, C713S152000

Reexamination Certificate

active

06871277

ABSTRACT:
The method prevents disclosure of protected information in a platform. The platform includes a plurality of entities (204) and a security manager (104). Each entity (204) has data which indicates whether the entity is trusted or untrusted and whether the entity has or has not been exposed to protected information. The untrusted entity (500) requests (504) an unsafe operation of a trusted entity (502). The trusted entity (502) notifies the security manager (104) of the requested operation. The trusted entity (502) then halts the requested operation if the untrusted entity (500) contains protected information or has been exposed to protected information.

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