Lars Strand

Learn More
<lars strand (at) gnist org> 2004−08−18 Revision History Revision 1.0 2004−10−18 Revised by: LKS Initial Release, reviewed by TLDP. Revision 0.2b 2004−10−13 Revised by: LKS Various updates. Thanks to Rick Moen <rick (at) linuxmafia com> for language review. Revision 0.0 2004−07−23 Revised by: LKS Initial draft. This document describes the software and(More)
The Session Initiation Protocol (SIP) is increasingly used as a signaling protocol for administrating Voice over IP (VoIP) phone calls. SIP can be configured in several ways so that different functional and security requirements are met. Careless configuration of the SIP protocol is known to lead to a large set of attacks. In this paper we show how(More)
This document describes the software and procedures to set up and use mobile IPv6 for Linux. This document describes the software and procedures to set up and use mobile IPv6 for Linux. The "Mobility Support in IPv6" draft answers the what and why of mobile IP: 1.1. What is Mobile IP? "Each mobile node is always identified by its home address, regardless of(More)
Many protocols running over the Internet are neither for-malised, nor formally analysed. The amount of documentation for telecom-munication protocols used in real-life applications is huge, while the available analysis methods and tools require precise and clear-cut protocol clauses. A manual formalisation of the Session Initiation Protocol (SIP) used in(More)
This paper describes the approach and preliminary results from the research project EUX2010sec. The project works closely with Voice-over-IP (VoIP) companies and users. It aims at providing better security of open source VoIP installations. The work towards this goal is organized by gathering researchers and practitioners around several scientific(More)
Norsk Regnesentral (Norwegian Computing Center, NR) is a private, independent, non-profit foundation established in 1952. NR carries out contract research and development projects in the areas of information and communication technology and applied statistical modeling. The clients are a broad range of industrial, commercial and public service organizations(More)
—This paper specifies a two-step migration towards a stronger authentication in the Session Initiation Protocol. First, we add support for a Password Authenticated Key Exchange algorithm that can function as a drop-in replacement for the widely adopted Digest Access Authentication mechanism. This new authentication mechanism adds support for mutual(More)