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Genge Bela

Publications and source records attributed to Genge Bela.

3 recordsLinked to original sources

Using Planetlab to Implement Multicast at the Application Level

Application-layer multicast implements the multicast functionality at the application layer. The main goal of application-layer multicast is to construct and maintain efficient distribution structures between endhosts. In this paper we focus on the implementation of an application-layer multicast network using PlanetLab. We observe that the total time required to measure network latency over TCP is influenced dramatically by the TCP connection time. We argue that end-host distribution is not only influenced by the quality of network links but also by the time required to make connections between nodes. We provide several solutions to decrease the total end-host distribution time.

cs.DC

Extending WS-Security to Implement Security Protocols for Web Services

Web services use tokens provided by the WS-Security standard to implement security protocols. We propose several extensions to the WS-Security standard, including name types, key and random number extensions. The extensions are used to implement existing protocols such as ISO9798, Kerberos or BAN-Lowe. The advantages of using these implementations rather than the existing, binary ones, are inherited from the advantages of using Web service technologies, such as extensibility and end-to-end security across multiple environments that do not support a connection-based communication.

cs.CR

Certificate-based Single Sign-On Mechanism for Multi-Platform Distributed Systems

We propose a certificate-based single sign-on mechanism in distributed systems. The proposed security protocols and authentication mechanisms are integrated in a middleware. The novelty of our middleware lies on the use of XPCOM components, this way we provide a different services that can be used on every platform where Mozilla is available. The componen based architecture of the implemented services allows using the authentication components separately.

cs.CR