云制造环境下可信第三方的非常规访问方式

UCRBAC for trusted third-party in cloud manufacturing environment

为确保云制造环境下资源提供方利益,满足其在异常情况下实时纠错的需求,提出一种非常规动态访问方式。从服务能力、运营能力、服务成效方面建立评估价值体系,进行第三方可信监管平台选择。给出访问控制总体结构,引入时空属性、自由度、先决条件依赖、生命活动时间等概念作为授权约束,在不涉及服务方商业隐私前提下,允许第三方可信监管平台在生命活动时间内拥有对能力状态异常的资源提供方进行实时纠错的权限,为服务使用者提供更人性的服务。以汽车零配件生产为例,阐述应用该访问方式进行实时纠错的步骤,实验结果表明了该方法的可行性。

To ensure the interests of resource providers in cloud manufacturing environment,and to meet the real-time correction needs of abnormal resource providers,a design method of unconventional access control mechanism was proposed.Firstly,the assessment of the value system was established to choose a trusted monitoring platform from the aspect of services,operations and effects.Then,the overall structure was proposed which posed spatial and temporal properties,attribute of freedom,role-de-pendence as authorization constraints.Based on these,the third-party had permission of correction in urgent and effective time on the premise that the abnormal resources were not related to commercial privacy.The mechanism achieved dynamic authorization and provided more personalized services for users.Finally,the production of auto parts was taken for the example to demonstrate the general process of real-time correction.