Personal computer hard disk protection system
First Claim
1. A hard disk protection system for protecting data of a plurality of users stored on a hard disk of a personal computer, the hard disk having logical disk structure having sector access rules including an operating system having logical drives, said system comprising:
- protection programs that generate a respective access map for each user to map each logical drive into a corresponding adjustable virtual zone, said adjustable virtual zone permitting each user to modify the sector access rules for the user'"'"'s data, anda hardware module, responsive to said protection programs, that either allow or deny access to the hard disk based on said modified sector access rules, said hardware module having a first memory that is inaccessible to the central processing unit and a second memory that is accessible to the central processing unit.
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Accused Products
Abstract
The personal computer hard disk protection system is designed to protect data stored on computer hard disks while permitting multiple user operation. The personal computer hard disk protection system prevents unauthorized access to the hard-disk controller by software applications, and permits safe servicing of requests which use the BIOS. The basis for the personal computer hard disk protection system functions is the dynamic transformation of the file system to the configuration of the current user. The system is based on a hardware device called the protection-program support module and a set of protection programs, most of which is stored in the protection-program support module. The protection program support module is an external board and is connected to the computer system bus.
80 Citations
29 Claims
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1. A hard disk protection system for protecting data of a plurality of users stored on a hard disk of a personal computer, the hard disk having logical disk structure having sector access rules including an operating system having logical drives, said system comprising:
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protection programs that generate a respective access map for each user to map each logical drive into a corresponding adjustable virtual zone, said adjustable virtual zone permitting each user to modify the sector access rules for the user'"'"'s data, and a hardware module, responsive to said protection programs, that either allow or deny access to the hard disk based on said modified sector access rules, said hardware module having a first memory that is inaccessible to the central processing unit and a second memory that is accessible to the central processing unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification