Oliver Welter

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The current issue contains 15 articles: the first and the second are appetizers for new INDICARE documents (second survey and fifth workshop). Four excellent articles deal with contracts, copyright confusion, court decisions, and the copyright reform in France. We also report about the DRM session of a recent OECD conference on the digital economy, and(More)
For ubiquitous communication self-organising adhoc networks become more and more important. We consider mobile phones as appropriate secure gateways to provide access to the Internet for external machines with low communication needs. A message-based approach is best in such a scenario with moving mobile phones and machines. In this paper we propose a(More)
IP-based networks form the base of todays communication infrastructure. The interconnection of formerly isolated networks brings up severe security issues. The standard approach, to protect the own network from abuse, is the usage of filter mechanisms at the border to the foreign network. The raising complexity of protocols and the use of encryption(More)
For ubiquitous communication self-organising adhoc networks become more and more important. We consider mobile phones as an appropriate trusted gateway for external machines with low communication needs. A message-based approach is best in such a scenario with moving mobile phones and machines. We propose a security model for access control to the(More)
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