A Mechanism to Resolve the Unauthorized Access Vulnerability Caused by Permission Delegation in Blockchain-Based Access Control
نویسندگان
چکیده
منابع مشابه
Blockchain Based Access Control
Access Control systems are used in computer security to regulate the access to critical or valuable resources. The rights of subjects to access such resources are typically expressed through access control policies, which are evaluated at access request time against the current access context. This paper proposes a new approach based on blockchain technology to publish the policies expressing t...
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eHealth is the concept of using the stored digital data to achieve clinical, educational, and administrative goals and meet the needs of patients, experts, and medical care providers. Expansion of the utilization of information technology and in particular, the Internet of Things (IoT) in eHealth, raises various challenges, where the most important one is security and access control. In this re...
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We are interested in the design of access control policies for virtual communities of agents based on the grid infrastructure. In a virtual community agents can play both the role of resource consumers and the role of resource providers, and they remain in control of their resources. We argue that this requirement imposes a distinction between the authorization to access a resource given by the...
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Delegation is a widely used and widely studied mechanism in access control systems. Delegation enables an authorized entity to nominate another entity as its authorized proxy for the purposes of access control. Existing delegation mechanisms tend to rely on manual processes initiated by end-users. We believe that systems in which the set of available, authorized entities fluctuates considerably...
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Trust is considered to be a powerful approach for managing access control in pervasive computing scenarios. We introduce a novel delegation system that describes digital trust between users by means of cryptographically secured tokens. The delegation system is organized by the users themselves in a fully distributed manner. A central instance like a public key infrastructure is not required. Th...
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ژورنال
عنوان ژورنال: IEEE Access
سال: 2020
ISSN: 2169-3536
DOI: 10.1109/access.2020.3018783