Recently, attribute-based access control (ABAC) has emerged as a convenient paradigm for specifying, enforcing andmaintaining rich and flexible authorization policies, leveraging attributes originated from multiple sources, e.g., operative systems, software modules, remote services, etc. However, attackers may try to bypass ABAC policies by compromising such sources to forge the attributes they...

Recently, attribute based access control (ABAC )has received considerable attention from the secu-rity community for its policy flexibility and dynamicdecision making capabilities. In ABAC, authoriza-tion decisions are made based on various attributesof entities involved in the access (e.g., users, sub-jects, objects, context, etc.). In an ABAC system,a proper attrib...

A method to prepare key synthetic intermediates for ABAB- and ABAC-phthalocyanines analogues is described. As an illustration, the synthesis of ABAC-phthalocyanine-type dye, with a donor–π-bridge–acceptor structure, performed.

Role-based access control (RBAC) and attribute-based access control (ABAC) are currently the most prominent access control models. However, they both suffer from limitations and have features complimentary to each other. Due to this fact, integration of RBAC and ABAC has become a hot area of research recently. We propose an access control model that combines the two models in a novel way in ord...

Realizing access control to sensitive data offloaded a Cloud is challenging in the Internet of Things, where various devices with low computational power and different security levels are interconnected. Despite solutions, National Institute Standards Technology (NIST)’s Attribute-Based Access Control (ABAC) model one preferred techniques literature. In this model, users who satisfy policies us...

The breath alcohol concentration (BrAC) standardized to the alveolar water vapour concentration has been shown to closely predict the arterial blood alcohol (ethanol) concentration (ABAC). However, a transient increase in the ABAC/BrAC ratio has been noted, when alcohol is absorbed from the gastrointestinal tract (absorption phase) and the ABAC rapidly rises. We analysed the plot of simultaneou...

Attribute-based access control (ABAC) uses the attributes of involved entities (i.e., subject, object, action, and environment) to provide control. Despite various advantages offered by ABAC, it is not best fit for distributed heterogeneous environments where an entity may necessarily match (syntactically) those used in policies. Therefore, another type called Semantic Attribute-Based Access Co...

Separation of access control logic from other components of applications facilitates uniform enforcement of policies across applications in enterprise systems. This approach is popular in attribute-based access control (ABAC) systems and is embodied in the XACML standard. For this approach to be practical in an enterprise system, the access control decision engine must be scalable, able to quic...