作　　者： ; ; ; ;

机构地区： 武汉大学计算机学院

出　　处： 《华中科技大学学报（自然科学版）》 2014年第11期11-16,22,共7页

摘　　要： 为了在设计之初对IaaS平台安全性评估提供科学依据,提出了专门适用于IaaS平台的耦合度计算方法.对IaaS耦合行为进行了抽象描述,并解释了IaaS平台耦合行为的特点,然后系统地归纳了IaaS平台耦合度的结构,并针对该结构基于改进的结构熵方法实现了IaaS平台耦合度的计算.最后以已有的IaaS平台为例,利用所提出的方法进行了平台耦合行为的抽象分析并计算了其耦合度,验证了该方法的可行性.计算结果表明:该方法的结果符合其实际设计情况,可以较好地对平台耦合程度进行量化,能够在设计之初为平台架构的安全性评估提供参考. In order to provide a scientific basis for the security assessment of IaaS (infrastructure as a service) platform at the beginning of the design ,a coupling measurement method applied for IaaS plat-form was put forward .The coupling behavior of IaaS abstractly was described to explain the charac-teristics of coupling behavior ,then the structure of the coupling of IaaS platform was systematically concluded ,and the method to measure coupling of IaaS platform was devised based on improved struc-tural entropy theory .In the end ,the existing IaaS platform was taken for example by abstractly ana-lyzing the platform coupling behavior and calculating its coupling to verify the feasibility of the meth-od .The results show that this method conforms to the actual design conditions of the platform and the method can well measure the coupling of the platform ,which can provide reference for security assess-ment in the early design of platform architecture .

关 键 词： 云计算 层 安全 耦合度 结构熵

领　　域： [自动化与计算机技术] [自动化与计算机技术]