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[FYI] Department A8: "Controlable User Access on Multimedia Data
- To: debate@fitug.de
- Subject: [FYI] Department A8: "Controlable User Access on Multimedia Data
- From: Horns@t-online.de (Axel H. Horns)
- Date: Thu, 27 May 1999 08:22:35 +0100
- Comment: This message comes from the debate mailing list.
- Organization: Private Site
- Reply-to: horns@t-online.de
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http://www.igd.fhg.de/www/igd-a8/
Department A8
Security Technology for Graphics and Communication
Systems
The Security Technology for Graphics and
Communication Systems department is concerned with
the design and implementation of security services
(confidentiality, integrity, digital signatures,
etc.) and their integration into information and
communication systems.
http://www.igd.fhg.de/www/igd-a8/publications/cisst.html
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Controlable User Access on Multimedia Data in the
World Wide Web
D. Storck and E. Koch
Abstract
This paper describes a possible way of controlling access to image
data via the World Wide Web. It describes how images are encrypted
using a novel technique and delivered from a server. When exchanging
data, a protocol ensures that requests are always tied to a registered
user and that all critical data are transferred in encrypted form.
User actions are permitted and logged by the server. Activities such
as storing and printing are possible only after obtaining permission
from the server. If illicit copies are obtained somehow despite this,
an additional watermarking system permits identification of the
distributor of the illicit copy. The system was implemented as a
Netscape plug--in.
[...]
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