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Internet has become the universal information communications infrastructure. VPN is commonly used to implement communications over different branch intranets. IPSec is a suit of protocols that adds security to communications at the IP layer, and it is a popular technology to implement VPN. On the basis of analysis on the insufficiency of traditional IPSec systems, a multi-link aggregate IPSec model...
In an era when critical infrastructure networks are increasingly less isolated and more accessible from open networks, including the Internet, the air-gap security that these critical networks once enjoyed no longer exists. Malicious individuals can exploit this network connectivity, in conjunction with security weaknesses in widely used, homogeneous, COTS (commercial off-the-shelf) products, to penetrate...
VPN(virtual Private network) provide a cost-effective means of connecting an organization and its partners when compared to the cost of a private network. A VPN provides a secure channel link over the Internet between project partners. This paper gives a brief introduction of fundamentals and implementations of the VPN, the comparison between characteristics and technologies of the traditional and...
The main idea of the third generation (3G) networks is to merge two of the most important communication systems: cellular networks and Internet. The IP multimedia subsystem (IMS) defined by 3GPP is a technology designed to provide robust multimedia services across roaming boundaries and over diverse access technologies. In this communication converged world, the challenging issues are security and...
The original goal of Internet protocol security (IPSec) is to enable the protection of all types of Internet protocol (IP) communications by protecting multiple peers at the network layer, in both the IPv4 and IPv6 environments. IPSec is a standard for securing internet communication and a widely deployed mechanism for implementing virtual private networks (VPNs). Most organisations deploy IPSec VPNs...
In order to encapsulate data and to convey information more efficiently and more security, a draft frame based on active block ciphers for application layer of Internet which could transmit orange data into semantic security and semantic integrity was designed according to scalable purpose. To different network environment, there were different intelligent choices about block cipher algorithms to...
In this paper, we propose a network architecture for realizing a group-based communication to solve issues of the Internet such as lack of security and low information S/N (Signal To Noise) ratio. We design a network architecture based on a multiple-association model. The proposed network architecture can realize high information S/N ratio by constructing multiple groups for different communication...
In recent years, organizations have been shifting focus to their core business competencies, and reducing total cost of ownership (TCO) associated with training and management of their IT infrastructure. In the same motif, organizations are establishing security and survivability frameworks as an integral part of their business strategy so as to provide an acceptable quality-of-service for their clients...
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