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We show that the total resistance distance (network criticality) of a graph has very useful interpretations in the context of communication networks therefore, we propose to use network criticality as the main objective function, and we provide guidelines to design the control loops to minimize network criticality.
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Motivated by this, we propose a two-loop general architecture for the control of networks and provide directions to design appropriate control algorithms in each control loop. We argue that in their most general form, the problems in a communication network can be converted to either the optimal selection of weights or optimal selection of paths based on the present values of weights in a graph. We are particularly interested in the notions of betweenness centrality and resistance distance in the context of communication networks. We model the communication network as a weighted graph and use the existing literature in graph theory to study its behavior. In this article we report on applications and extensions of weighted graph theory in the design and control of communication networks. Proposed forensic engine also support cyber investigation team with generated forensic report and prosecution of culprits by judiciary system of the specific country. Proposed forensic engine employs is a high-speed packet capturing hardware module, a sophisticated packet reformation algorithm restores email header and messages from encrypted stream of SMTP and POP3 network sessions. This digital forensic engine is compatible to work with in proxy servers and other computing environments and enables forensic reconstruction followed by analysis of webmail clients. This research work revels working background of SSL based webmail forensic engine, which decrypt respective communication or network session and also reconstruct the actual message contents of webmail applications. These challenges might affect the digital forensic experts in procuring substantial evidences against such criminals from their working environments. Forensic experts have to face greater difficulty and multiple challenges in tracing crucial forensic information from network packets as the communication is secured. Cyber criminals and terrorists have started by means of this mode for exchanging their malicious information in their transactions. Currently most of the email clients and service providers now moved to secured data communications using SSL or TLS security for their data exchanged. Emails are profusely used to exchange data and information using several frontend applications from various service providers by its users. In this era of information technology, email applications are the foremost and extensively used electronic communication technology.
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