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Title:
INTERNET-BASED SHARED FILE SERVICE AND DISTRIBUTED ACCESS CONTROL
Document Type and Number:
WIPO Patent Application WO2001033829
Kind Code:
A3
Abstract:
A multi-user file storage service and system enable each user of a pre-subscribed user group to operate an arbitrary client node (h1-h8) at an arbitrary geographic location, to communicate with a remote file server node via a wide area network (100). More than one user of the pre-subscribed user group is permitted to access the file group at the remote file server node (50, 61, 62) simultaneously. The interface designates at the client node each accessible file of the group as stored on a virtual storage device. An encrypted key is transferred from the remote file server node to one of the client nodes via a secure channel. The key is encrypted using an encryption function not known locally at the remote file server node. The transferred key is decrypted at the client node to decrypt information of the files downloaded from the remote file server node.

Inventors:
PHILLIPS ROBERT S
DAVIS SCOTT H
DIETTERICH DANIEL J
NYMAN SCOTT E
PORTER DAVID
Application Number:
PCT/US2000/030201
Publication Date:
March 28, 2002
Filing Date:
November 01, 2000
Export Citation:
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Assignee:
MANGOSOFT CORP (US)
International Classes:
G06F17/30; (IPC1-7): G06F15/16
Foreign References:
US5987506A1999-11-16
US5918019A1999-06-29
US5838916A1998-11-17
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