Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 26 for “"access control policies"”.
-
A Policy-Based Management Approach to Security in Cloud Systems
… are serving an increasing number of users accessing digital resources from various locations. In these circumstances, enabling efficient and reliable access control is becoming an inherently challenging task. A representative example here is a hybrid cloud environment, where various parts …
-
Reasoning about history based access control policy using past time operators of interval temporal logic
… of specification, verification of history based access control policies has been selected. This problem has already been solved using future time of interval temporal logic ITL but the drawback is that policy rules are not succinct and simple. However, the use of past time operators of ITL …
-
The SUDO Framework: For Data Organization And Efficient Query Authorization For NoSQL Databases
… a framework that can enforce fine-grained access control policies and can be applicable to multiple NoSQL databases ranging over a variety of database models. In this thesis we present SUDO: Semi- / Unstructured Data Organization Framework for defining pseudo-dynamic schemata. The SUDO …
-
A Novel Approach to White-Box Policy Analysis
The access control systems in dynamic environments contain composite access control policies, that combine decisions from multiple component policies using policy combining algorithms. In such dynamic environments, analysis of policies is a challenge. In this thesis, I propose a white-box policy …
-
Preserving Trust Across Multiple Sessions in Open Systems
… gradual disclosure of digital credentials and access control policies. Previous research in trust negotiation does not address issues in preserving trust across multiple sessions. This thesis discusses issues in preserving trust between parties who were previously considered strangers. It also …
-
Towards a general framework for Digital Rights Management (DRM)
… defined as a technology that enables persistent access control. The common understanding of DRM is that of a technology that enables means to thwart piracy of digital multimedia through limiting how the media is used by the consumer. It can be observed that many of these restrictions can be …
-
Responding to Policies at Runtime in TrustBuilder
… trust is for the participants to exchange access control policies to inform each other of the requirements for establishing trust. When a policy is received at runtime, a compliance checker determines which credentials satisfy the policy so they can be disclosed. In situations where several …
-
Access Control Frameworks For Rapidly Evolving Business Enterprises
<p> Access control systems must adjust to evolving business needs, such as accommodating new and modified business needs. These changes may require new skills or the modification of privileges users have in a given security system. Current access control models are not flexible enough to …
-
Towards a general framework for Digital Rights Management (DRM)
… defined as a technology that enables persistent access control. The common understanding of DRM is that of a technology that enables means to thwart piracy of digital multimedia through limiting how the media is used by the consumer. It can be observed that many of these restrictions can be …
-
Lacome: a cross-platform multi-user collaboration system for a shared large display
… as well as input redirection so users can control each other's applications. La-come supports separate types of interaction through a Lacome client for window management tasks on the shared display(move, resize, iconify, de-iconify) and for application interactions through the VNC servers. …
-
EXAM-S: an Analysis tool for Multi-Domain Policy Sets
… policy based management for tasks such as access control, network security and data privacy, the management and consolidation of a large number of policies is becoming a crucial component of such policy based systems. In large-scale distributed collaborative applications like web services, …
-
Security of Publish/Subscribe Systems
… systems is enforcing fine-grained access control policies on the content of publications. Access control policies are usually enforced by a trusted third party or by the owner holding the data. However, such solutions are not possible for pub/sub systems. When brokers are not …
-
Blockchain-enabled Secure and Trusted Personalized Health Record
… for individuals and offers a consistent patient-controlled information system for managing the health care of patients. Except for the patients in Veterans Affairs health care service, however, no LPHR is available for the general population in the U.S. that can integrate the existing patients' …
-
Distributed RBAC for subscription-based remote network services
… RBAC (DRBAC) to support fine granular access control across multiple autonomous resource sites and subscribing sites. The DRBAC model extends the RBAC model to a distributed environment. A prototype system based on the concepts of authentication delegation and distributed role and the …
-
Policy-Based Access Control in Federated Clinical Question Answering
… each maintaining internal databases and access control policies. Applying standard RAG to clinical question-answering tasks is complicated by the lack of an interface for hospital resource owners to regulate and restrict access to sensitive clinical documents during retrieval, which is …
-
Secure Access to Service-based Collaborative Workflow Across Organisations
… service-oriented architecture and role-based access control. Grid Computing has been developed to provide middleware for collaborative access to distributed processing services and distributed data sources, supporting distributed users that form Virtual Organisations. Some distributed services …
-
Secure platforms for enforcing contextual access control
… has made it possible to provide pervasive access to sensitive data to authorized individuals from any location. While this has certainly made data more accessible, it has also increased the risk of data theft as the data may be accessed from potentially unsafe locations in the presence of …
-
Efficient Enforcement of Security Policies in Distributed Systems
… (IS) that confirm only authorised users can access resources. A few decades ago, the traditional PBM has focused on closed systems, where enforcement mechanisms are trusted by system administrators who define access control policies. Most of current work on the PBM systems focuses on …
-
Access control obligation specification and enforcement using behavior pattern language
… devices offers novel opportunities for users to access and share resources anywhere and anytime so that such a collaborative environment complicates the design of an accountable resource access control system. Relying on only predefined access control policies based on an entity's attributes, as …
-
Privacy Preserving Enforcement of Sensitive Policies in Outsourced and Distributed Environments
The enforcement of sensitive policies in untrusted environments is still an open challenge for policy-based systems. On the one hand, taking any appropriate security decision requires access to these policies. On the other hand, if such access is allowed in an untrusted environment then …
Page 1 of 2