Security is a major concern in the design of modern communication systems. It is articularly challenging with wireless networks such as Ad hoc networks. Ad hoc networks are dynamically reconfigured. For this reason they are vulnerable to several major security threats. This paper focus on different theoretical aspects of security services, attacks and security mechanisms.

With the increase in information accessibility, security and privacy of data is a key concern, underscoring the need for managing security of system resources and objects in an enterprise. One of the most popular access control management approaches is to abstract security administration tasks by employing system and security policies [1]. While policy based security management approach offers ...

BACKGROUND The importance of health privacy protections in the era of the "Facebook Generation" has been called into question. The ease with which younger people share personal information about themselves has led to the assumption that they are less concerned than older generations about the privacy of their information, including health information. We explored whether survey respondents' vie...

RFID has been more and more attention and application by people, but the existence of security and privacy problems worthy of attention is concern. The certification process analysis of several typical security protocols is based on existing RFID authentication protocol. It proposed an improved bidirectional authentication algorithm. The use of one-way HASH function can solve the security probl...

Communication is the important part in any type of network for making it possible to transfer data from one node to another. Communication needs quality and security for better performance and for acceptance of users and client companies. Quality is dependent on size and some other factors of network but security is very concern parameter in network as it is independent of network size and comp...

In aspect-oriented programming (AOP) a cross-cutting concern is implemented in an aspect. An aspect weaver blends code from the aspect into a program’s code at programmer-specified cut points, yielding an aspectenhanced program. In this paper we apply some of the concepts from the AOP paradigm to data. Like code, data also has cross-cutting concerns such as versioning, security, privacy, and re...