The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Inspired by rule-based access control models, this paper proposes a universal policy model and an access protection framework to secure dataspace. The key components and processes for this framework, policy organization, policy indexing and two resource searching strategies with access decision-making, are illustrated and experimented to harmonize the contradiction between security and efficiency.
Based on the iDM concept, this paper proposes an extensible data model with an 8-tuple representation, which can not only describe more complex data sources by extending the Group Component, but also contain rule-based security elements, which consist of Access Component and Authorization Component. Data model is detailed and two corresponding examples are analyzed to verify our approach.
One important privacy principle is that an individual has the freedom to decide his/her own privacy preferences, which should be taken into account when data holders release their privacy preserving micro data. Nevertheless, current related k-anonymity model research focuses on protecting individual private information by using pre-defined constraint parameters specified by data holders. This paper...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.