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.
and only if user’s attributes satisfy the access policy and the required keyword agrees with the file keyword. And users can verify whether the cloud server executes the search all over the ciphertexts. Besides, the removed user cannot search again even if he/she colludes with one of the servers.
In a Dynamic Verifiable Searchable Symmetric Encryption (DVSSE) scheme, a client Alice can perform keyword-based searches on ciphertexts, and update (modify, delete and add) documents in a verifiable way. However, the DVSSE scheme is not suitable for the multi-user environment, where Alice may authorize many users to
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.