Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/32541
Title: Controlled dissemination of digital information
Authors: NARASIMHALU, ARCOT D. 
WANG, WEIGUO 
KANKANHALLI, MOHAN S. 
Issue Date: 12-Mar-1996
Source: NARASIMHALU, ARCOT D.,WANG, WEIGUO,KANKANHALLI, MOHAN S. (1996-03-12). Controlled dissemination of digital information. ScholarBank@NUS Repository.
Abstract: The present invention is a method and apparatus for controlling the dissemination of digital information. Digital information is structured logically to incorporate usage history and allowable access window before it is encrypted in a header portion and a body portion. The end user accesses the digital information with a tamper-proof controlled information access device by decrypting the digital information. A controller disposed in the controlled information access device permits end users to access transparently uncontrolled information. Controlled digital information will be accessed as long as the conditions specified by the information provider are met. In one embodiment of the present invention, controlled information is disseminated in an off-line manner while the second embodiment of the present invention disseminates controlled digital information in an on-line manner.
URI: http://scholarbank.nus.edu.sg/handle/10635/32541
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
US5499298.PDF561.21 kBAdobe PDF

OPEN

PublishedView/Download

Page view(s)

131
checked on Dec 15, 2017

Download(s)

130
checked on Dec 15, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.