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.
Many-core architectures provide massive parallelism and high performance to the users. They also introduce key challenges regarding security. The main threat rises from the resource sharing. Adoption of firewalls, encryption mechanisms and resource isolation (processor or memory) are common strategies to treat the security threats. The two first strategies present high hardware cost, while the resource...
Multi-Processors Systems-on-Chip (MPSoCs), as a key technology enabler of the new computation paradigm Internet-of-Things (IoT), are exposed to attacks. Malicious applications can be downloaded at runtime to the MPSoC, infect IPs and open doors to perform timing attacks. By monitoring the Network-on-Chip (NoC) traffic, an attacker is able to spy sensitive information such as secret keys. Previous...
Systems-on-chip (SoCs) based on many core architectures can be attacked. Malicious processes can infer secrets from on-chip sensible traffic by evaluating the degradation on their communication performance. Such a threat rises from the resource sharing. In order to avoid such time-driven attacks, the network-on-chip (NoC) can integrate mechanisms to isolate different communication flows. In this letter,...
Anonymous communication systems have been around for sometime, providing anonymity, enhanced privacy, and censorship circumvention. A lot has been done, since Chaum's seminal paper on mix networks, in preventing attacks able to undermine the anonymity provided by these systems. This, however, is goal difficult to achieve due to the de-centralized nature of these systems. In the end it boils down to...
We consider using trust information to improve the anonymity provided by onion-routing networks. In particular, we introduce a model of trust in network nodes and use it to design path-selection strategies that minimize the probability that the adversary can successfully control the entrance to and exit from the network. This minimizes the chance that the adversary can observe and correlate patterns...
Expected growth in use and implementation of wireless sensor networks (WSNs) in different environments and for different applications creates new security challenges. In WSNs, a malicious node may initiate incorrect path information, change the contents of data packets, and even hijack one or more genuine network nodes. As the network reliability completely depends on individual nodespsila presence...
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.