Isolation of application-specific data within a user account

Details Isolation of application-specific data within a user account Isolation of application-specific data within a user account

2005-11-15

2011-12-06

Pyzocha, Michael (Department: 2437)

Information security

Prevention of unauthorized use of data including prevention...

Access control

C726S021000, C713S164000, C713S165000, C713S166000, C713S167000, C713S193000

Reexamination Certificate

active

08074288

ABSTRACT:
A mechanism is provided for isolating application-specific data in an environment where multiple applications share a same user account. This mechanism enables data specific to an application to be accessed only by the application. When an application requests application-specific data, the data is loaded and a handle to the data is returned to the application. Access to the data is allowed only though the handle. Therefore, only the application possessing the handle can access the data. A counter may be associated with the loaded data. The counter's value is incremented whenever a handle is created for the data and decremented whenever a handle for the data is terminated. When the value of the counter reaches zero, the data is automatically unloaded.

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