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This paper presents a novel payload analysis method. Consecutive bytes are separated by boundary symbols and defined as words. The frequencies of word appearance and word to word transitions are used to build a model of normal behavior. A simple anomaly score calculation is designed for fast attack detection. The method was tested using real traffic and recent attacks to demonstrate that it can be...
The purpose of this study is to identify the key security issues within the context of software based VoIP (Voice over Internet Protocol) which are engaged in the process of data exchange on the converged networks. There is no one single solution for VoIP security; it is all depended on the type of customers, existing IT environment and carriers. In order to narrow down the focus we will concentrate...
This paper describes the experience of the University of Murcia in the design and development of security SOA infrastructures for electronic government, which provide university community with secure and interoperable services.
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