A Security Framework in Kumoi Cloud Platform

Kumoi is a virtualization-based cloud platform we have been developing for four years. Kumoi was designed for agility by treating various types of resources, such as virtual machines and networks, as distributed objects and combining them together by scripting. This paper especially focuses on security which was achieved in Kumoi where the range of security features including authentication, authorization, accounting, auditing, and encryption were supported. All these features were enabled by natural extension to the original design concepts and described well in this paper from the software composition view.