Secure access to encrypted information
First Claim
1. A method of using a mini filter driver to secure access to encrypted information stored on a removable storage device, the method comprising:
- receiving a request to read information from the removable storage device;
ascertaining if the request originates from an authorized client;
receiving encrypted information read from the removable storage device;
decrypting the encrypted information in the event that the request originated from an authorized client; and
conveying the decrypted information to the authorized client.
9 Assignments
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Accused Products
Abstract
A method of using a mini filter driver to secure access to encrypted information stored on a removable storage device. The method comprises receiving a request to read information from the removable storage device. The mini filter driver ascertains if the request originated from an authorized client. The mini filter driver receives encrypted information read from the removable storage device, and decrypts the encrypted information in the event that the request originated from an authorized client. The decrypted information can then be conveyed to the authorized client. If the client is not authorized, then the mini filter driver does not decrypt the information.
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Citations
13 Claims
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1. A method of using a mini filter driver to secure access to encrypted information stored on a removable storage device, the method comprising:
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receiving a request to read information from the removable storage device; ascertaining if the request originates from an authorized client; receiving encrypted information read from the removable storage device; decrypting the encrypted information in the event that the request originated from an authorized client; and conveying the decrypted information to the authorized client. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A file management system comprising:
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a storage device driver for reading information from and writing information to a removable storage device; a file system driver in communication with the storage device driver for organizing files stored on the removable storage device; a file system filter manager in communication with the file system driver; and a mini filter driver registered with the file system filter manager, the mini filter driver further comprising a list of authorized clients, and decryption technology whereby the mini filter driver is operable to decrypt information read by the file system driver in response to a request from an authorized client. - View Dependent Claims (10, 11)
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12. A self-service terminal including a plurality of devices requiring periodic maintenance, the terminal comprising:
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a management application for providing restricted functions accessible only by an authorized user; a port for receiving a removable storage device from a user, where the removable storage device contains encrypted information relating to maintaining the devices; and a file system filter manager including a mini filter driver for decrypting the encrypted information stored on a removable storage device in response to a request for the information from an authorized application; wherein the management application is operable to register with the mini filter to become an authorized application. - View Dependent Claims (13)
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Specification