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Access policy enforcement techniques to protect data shared across domains
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pletea, Dan |
| Copyright Year | 2014 |
| Abstract | Data sharing across domains is nowadays becoming more popular and common. Such collaborations are able to open valuable new research opportunities, while lowering the costs of access to data. These benefits come with increased number of security concerns regarding authorizing access to data across domains. These concerns translate into security requirements and later into access policies that have to be enforced by all the collaboration parties. This can be difficult as the authorization techniques that the collaborative parties are using might be different. Existing cross-domain authorization mechanisms present shortcomings with regard to efficiency, access policies conflicts solving and granularity of the access control. In this work we propose an efficient solution for cross-domain policies administration and enforcement. We design a two-layer authorization architecture to enforce access policies, where the first layer uses shared collaboration policies. This layer is overruling the second layer which consists of domain-specific access policies. The proposed solution is evaluated and proves to be more efficient than the traditional approach. Additionally, we design a solution for dealing with data sensitivity status using data sensitivity annotations. We develop a mechanism which uses the annotations to mask access to data. Next we validate that this solution is masking data efficiently and is capable of providing fine-grained access control. Moreover the annotations are making use of user geolocation. We prove that the data masking process is enforcing user geolocation successfully in a proof of concept application service. Access Policy Enforcement Techniques to Protect Data Shared Across Domains iii |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://pure.tue.nl/ws/files/46998716/784689-1.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
