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.
To facilitate the analysis of cryptographic protocols, based on time-dependent cryptographic protocol logic (TCPL), a method to specify logic formulas in XML is given. And then, a method to automatically verify cryptographic protocol is provided. In this method, the goals of the protocol are reduced to a set of sub-goals, and continually using the similar reduction on these sub-goals will at last...
A number of logics have been proposed to analyze the cryptographic protocols, but most of them cannot explicitly express time factor which plays an important role in protocols. In this paper, we present a logic to model the time in cryptographic protocols. Our logic is based on the predicate modal logic, so, the time factor can be expressed by invoking a time variable as a parameter of predicate and...
Protecting data of free-roaming mobile agents has drawn much attention in recent years. But no perfect solution has ever been proposed. Many of the solutions are vulnerable by colluded truncation attacks. In this study we analyze available methods, and design a novel protocol by cooperation between two kinds of agents - task agent who transfers freely in the net and secondary agent who transfers passively...
In this paper we study the ontology-based inference attack problem in large distribute XML databases. Supported by the semantically rich ontologies, the ontology-based inference attack can lead to undesired information disclosure via replicated XML data under different syntactic formats and inconsistent secure classifications. To address this new security problem, we propose a framework called Semantic-based...
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.