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.
With the prompt advancement and widespread selection of wireless sensor networks (WSNs), security has grown a frequently noticeable problem. To establish a session key in sensor node communication is a challenging job for WSNs. Key exchange and group key transfer protocols based on trusted key distribution center can be applied for the network infrastructures with fixed topology. But these protocols...
The area of wireless sensor network is already shrouded with various issues e.g. energy issues, routing issues, QoS issues, and security issues. Although in past there were evolution of various secure techniques, but majority of the technique were sophisticated cryptographic implementations where time and space complexities were less emphasized. This paper presents a simple and a novel technique called...
Unattended Wireless Sensor Networks (UWSNs) operated in hostile environments face a risk on data security due to the absence of real-time communication between sensors and sinks, which imposes sensors to accumulate data till the next visit of a mobile sink to off-load the data. Thus, how to ensure forward secrecy, backward secrecy and reliability of the accumulated data is a great challenge. For example,...
Wireless Sensor Networks (WSN) consists of sensor nodes that are networked and are deployed in unattended areas where security is very important. Security is considered as one of the vital issues in the area of sensor networks. This work proposes an efficient scheme that deals with the availability of a mobile node and introduces a session time within which the secured secret key remains valid. The...
Efficient data collection is challenging in Wireless Sensor Networks. Use of Mobile Agents for various operations like data collection and software updates in Wireless Sensor Networks is receiving significant attention recently as it increases the lifetime of the network. Mobile Agents are privileged hence they are attractive targets. Compromised mobile agents may be used to launch various attacks...
The EU funded ANGEL project focuses on the development and deployment of wireless sensor networks building ambient intelligence systems for assisted-living and personal health monitoring. The provision of security services such as confidentiality and authentication is a fundamental requirement for ANGEL in order to ensure the safety and privacy of the users; the technical realization is challenging...
Wireless communications are central part of the new military doctrines, based on interacting networks in the physical, information, cognitive, and social domains. In particular, it is important to enable flexible and secure communications among groups of stationary nodes, such as sensor nodes that collect information about the battlefield, and mobile nodes that operate in the same environment, such...
Wireless sensor networks that use a mobile sink to collect sensor data along a predetermined path raise a new security challenge: without verifying the source of the data request message, the network will become vulnerable to attacks. We propose an efficient security scheme, which divides the sinkpsilas data collection path into grids, sensors in each grid, uses secret keying in-formation and collision-resistant...
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.