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.
A crucial aspect when establishing a secure peer-to-peer communication channel is the negotiation of the security parameters used to protect the successive data communications, including the various encryption and authentication keys. There are different secure protocol (such as IPSec, TLS, SSH, etc.) currently defined with their own negotiation mechanisms; unfortunately they usually rely on a pre-established...
Mobile ad hoc network (MANET) consists of a set of wireless devices such as PDAs and notebooks. In MANET there is no centralized administration as well as base station, so the network topology changes frequently. Group communication in MANET is becoming more important day by day because of increasing popularity of MANET as well as constructing subgroups to support ldquomany-to-manyrdquo communication...
This paper proposes a lightweight authentication and hop-by-hop security scheme between the SIP UA and server. Although a number of security schemes for authentication and key exchange in SIP network are proposed, they still suffer from heavy computation overhead on the UApsilas side. The SIP UA in the proposed scheme delegates cryptographically computational operations such as the exponentiation...
Group key agreement protocol allows all the members to agree upon a common session key, which may be used for later secure communication among all the participants. Through incorporating ID-based authenticated two-party key agreement protocol proposed by McCullagh et al. and constant round group key agreement proposed by Burmester and Desmedt, we propose a new ID-based two round authenticated group...
Securing group communications in resource constrained, infrastructure-less mobile ad hoc networks (MANETs) has become one of the most challenging research directions in the areas of wireless networking and security. MANETs are emerging as the desired environment for an increasing number of commercial and military applications, addressing also an increasing number of users. Security on the other hand,...
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.