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A CSCW-Enabling Integrated Access Control Model and its Application

机译：支持CSCW的集成访问控制模型及其应用

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摘要

Nowadays open and distributed Computer Supported Cooperative Work (CSCW) systems are faced with security challenges due to large numbers of cooperative users, and a mass of valued data resources need to be protected against unauthorized usage, disseminations and share. To this end, role-based collaboration framework and access control approaches have been a focus in recent years, but there lack of a holistic and comprehensive model and visual modeling. We proposed and formalized a CSCW-enabling access control model integrating generic centralized authorization and distributed authority delegation, called IACM (Integrated Access Control Model) for CSCW, based on the cooperative roles and their owned activities. And then, the visual modeling was represented with static and dynamic characteristics, with a goal to narrow the gap of the formalized model and application level. Finally, an application in the collaboration system for equipments manufacture designing was implemented to improve security of the role-based centralized authorization management by using the authorization constraint rules, and to enhance the collaborative capability based on the user-side delegation mechanism, effectively guaranteeing CSCW system security and authorization management efficiency.
机译：如今，由于大量的合作用户，开放式和分布式计算机支持的协作工作（CSCW）系统面临安全性挑战，并且需要保护大量有价值的数据资源，以防止未经授权的使用，传播和共享。为此，近年来，基于角色的协作框架和访问控制方法一直是关注的焦点，但是缺乏整体和全面的模型和可视化建模。我们根据合作角色及其自身的活动，提出并正式化了一个支持CSCW的访问控制模型，该模型集成了通用集中式授权和分布式权限委派，称为CSCW的IACM（集成访问控制模型）。然后，可视化建模具有静态和动态特性，目的是缩小形式化模型和应用程序水平之间的差距。最后，在设备制造设计协作系统中实现了一个应用程序，利用授权约束规则提高了基于角色的集中式授权管理的安全性，增强了基于用户侧委托机制的协作能力，有效地保证了CSCW系统安全性和授权管理效率。

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