Abstract
Considering the increasing scale and severity of damage from recent cybersecurity incidents, the need for fundamental solutions to external security threats has increased. Hence, network separation technology has been designed to stop the leakage of information by separating business computing networks from the Internet. However, security accidents have been continuously occurring, owing to the degradation of data transmission latency performance between the networks, decreasing the convenience and usability of the work environment. In a conventional centralized network connection concept, a problem occurs because if either usability or security is strengthened, the other is weakened. In this study, we proposed a distributed authentication mechanism for secure network connectivity (DAM4SNC) technology in a distributed network environment that requires security and latency performance simultaneously to overcome the trade-off limitations of existing technology. By communicating with separated networks based on the authentication between distributed nodes, the inefficiency of conventional centralized network connection solutions is overcome. Moreover, the security is enhanced through periodic authentication of the distributed nodes and differentiation of the certification levels. As a result of the experiment, the relative efficiency of the proposed scheme (REP) was about 420% or more in all cases.
Highlights
Received: 1 December 2021Considering the increase in the scale of damage and severity of recent cyber security incidents, there is a need for systems to protect critical information in response to increasingly intelligent external security threats [1]
By disabling the differentiated functions such as aggregation and trust level of the DAM4SNC in this simulation environment, we confirmed the baseline of the environmental conditions for comparing DAM4SNC and conventional performance
There is a need for countermeasures to external security threats owing to the continuous occurrence of cyber-attacks, and network separation technology has been designed to block such external threats
Summary
Considering the increase in the scale of damage and severity of recent cyber security incidents, there is a need for systems to protect critical information in response to increasingly intelligent external security threats [1]. When either usability (convenience and performance) or security is strengthened, the other is weakened [5,6] It has a trade-off limitation that must be solved. To overcome the limitations of the existing technology, a network connection solution that. We solve trade-off limitations, and a distributed authentication mechanism for secure network connectivity (DAM4SNC) is proposed to ensure high security and usability in a distributed network environment simultaneously. By communicating with separated networks based on the periodic authentication between the distributed nodes, the inefficiency of conventional centralized network connection solutions is improved, considering the usability and security.
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