Cyber Security Modeling for the Operation of Virtualized Trusted Networks

摘要

The Virtualized Trusted Networks (VTN) is a novel network architecture which makes it possible to communicate in a secure manner between devices across unreliable networks. It provides confidentiality, availability, quality of service, mobility to users, anytime and anywhere. This paper presents the results of cyber security modeling for the reliable operation of the VTN. The security requirements are derived for security control of the system by analyzing threat elements and attack possibility in the security modeling procedure. By using STRIDE modeling, the threat elements are analyzed for each network component. Then an attack tree is constructed by analyzing attack examples for every threat. The security requirements and countermeasures are proposed to respond against cyber security attacks to the VTN.