Chi-Tai Dang

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There is a trend towards voice-over-IP systems based on the session initiation protocol (SIP), which is a protocol for session management in general. However, as signalling data is transferred using the Internet, systems face security problems. Thus, at least authentication of the participants and confidentiality of signalling data have to be ensured as(More)
Writing adaptive applications is complex and thus errorprone. Our self-adaptive migratable Web services (SAM-WSs) already provide adaptation support in terms of location, available state, provided functionality and implementation in use. Yet, SAM-WSs still require developers implementing the adaptation logic themselves. In this work, we present an approach(More)
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