Recent technological developments have enabled an increasing number of sensor networks to be deployed. Despite this rapid increase in the number of deployed sensor networks there has been relatively little research into how to prevent third parties injecting false data into the system. This paper summarises the existing solutions available however none can provide protection all the way from th...

In this paper, we design an integration security system that provides authentication service, authorization service, and management service of security data and a unified interface for the management service. The interface is originated from XKMS protocol and is used to manage security data such as XACML policies, SAML assertions and other authentication security data including public keys. The...

If the data collected within a sensor network is valuable or should be kept confidential then security measures should protect the access to this data. We focus on user authentication, a central problem when trying to build access control mechanisms for sensor networks. We first sketch some security issues in the context of user authentication in sensor networks. We then introduce the notion of...

If the data collected within a sensor network is valuable or should be kept confidential then security measures should protect the access to this data. We focus on user authentication, a central problem when trying to build access control mechanisms for sensor networks. We first sketch some security issues in the context of user authentication in sensor networks. We then introduce the notion of...

The structure of the Semantic Web gives users the power to share and collaboratively generate decentralized linked data. In many cases, though, collaboration requires some form of authentication and authorization to ensure the security and integrity of the data being generated. Traditional authorization systems that rely on centralized databases are insufficient in this scenario, since they rel...

If the data collected within a sensor network is valuable or should be kept confidential then security measures should protect the access to this data. We focus on user authentication, a central problem when trying to build access control mechanisms for sensor networks. We first sketch some security issues in the context of user authentication in sensor networks. We then introduce the notion of...

In this paper, we present a high-quality image authentication scheme based on absolute moment block truncation coding. In the proposed scheme, we use the parity of the bitmap (BM) to generate the authentication code for each compressed image block. Data hiding is used to authenticate whether the content has been altered or not. For image authentication, we embed the authentication code to quant...