Method and system for providing data security in a file...

Details Method and system for providing data security in a file... Method and system for providing data security in a file...

2006-09-05

2006-09-05

Sheikh, Ayaz (Department: 2131)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

C713S164000, C713S165000, C713S166000, C713S152000, C713S152000, C710S026000, C710S028000, C710S043000, C709S223000, C709S226000, C709S229000

Reexamination Certificate

active

07103783

ABSTRACT:
A System for providing data security in a first device driver operably installed in a computer operating system having a layered plurality of device drivers (81, 82, 83, 84) for accessing data in a data storage device. The first device driver detects an I/O request, and determines whether the first device driver is functionally uppermost in the layered plurality of device drivers. If the first device driver is functionally uppermost in the layered plurality of device drivers, the method performs the I/O request (80) in the first device driver. If the device driver is not functionally uppermost in the layered plurality of device drivers, the method denies the I/O request in the first device driver, and allows the I/O request to be performed by the next lowest-level driver in the layered plurality of device drivers.

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