A Study on ACAS for Enhanced Security in Cloud Virtualization Internal Environment

ABSTRACT As the utilization of cloud computing service rapidly increases to meet demands for various forms of service recently, the virtualization technology has made a rapid rise, further leadin g to some issues related to security, such as safety and reliability. As a system to provide environments what multiple virtual opera ting systems can be loaded, hypervisors may be a target of various attacks, such as control loss and authority seizure, si nce all the agents fcan be damaged by a malicious access to the virtualization layer. Therefore, this paper was conducted to investigate the access control for agents and suggest a plan to control malicious accesses to the cloud virtualization internal environment. The suggested technique was verified not to have effect on the performance of the system and environment through an analysis of its performance. Keywords: Access Control, Cloud Virtualization, Agent Management, Hyper visor I.서 론 클라우드 서비스는 자동화의 편리성을 제공하고 동적 확장성에 용이 함으로써 자원의 공동이용, 인터넷을 이용한 정보서비스, 정보시스템의 아웃소싱, 다양한 디바이스 환경 등에 사용되고 있다. 최근 가상화 내부 공간의 하드웨어 가상화(INTEL VT, AMD-V 등)와 같은 새로운 기술들이 개발됨에