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Achieving trust relationship with privacy preservation is one of the key purposes of identity management. A novel identity management model is proposed to build trust relationship among different parties through identity validation and authentication. A two-way handshake process with two variants is introduced to implement strong mutual authentication between users and service providers without revealing...
The emergence of XML-based web services as a new software development paradigm increases the expectations of getting better software that address the various collaboration demands over Internet between organizations, or what's termed virtual Organization (VO). The development of appropriate identity management systems between these heterogeneous security domains will be the key enabler for such collaboration...
Since the number of server providing the facilities for users is usually more than one, remote user authentication schemes used for multi-server architectures, rather than single server circumstance, is considered. In 2007, Liao and Wang proposed a “secure dynamic ID based remote user authentication scheme for multi-server environment” that uses dynamic ID instead of static ID to achieve user's anonymity...
Federation is an identity management model in which various tasks associated with an identity transaction are distributed among the actors involved in the transaction. This model works from the premise that distributing tasks among the actors can achieve usability and privacy advantages for the user, as well as business efficiencies for businesses or applications. Typically, federated identity manifests...
Bardram introduced a new concept of activity-based computing as a way of thinking about supporting human activities in ubiquitous environments. In such environments where users are using a multitude of heterogeneous computing devices, the need for supporting users at the activity level becomes essential. However, without considering basic security issues, it could be rife with vulnerabilities. Security...
This paper presents a secure authentication and authorization protocol for protecting privacy in sensitive information systems. It allows involved individuals and group participants to achieve high security levels and tight authorization control. The need of long term shared secrets to authenticate individuals and group users is eradicated in the proposed protocol by dynamic keys. It overcomes the...
Mobile technologies made their headway by offering more flexibility to end-users and improve the productivities. Many businesses have quickly adopted them so as to gain and sustain a competitive edge, especially in global roaming. Within the application of ubiquitous access and pervasive communication, security, privacy and QoS becomes a critical issue during global mobility, particularly in getting...
In addition to existing voice call service, the GSM platform has evolved to include various multimedia services and 3G services enabling international roaming. On that ground, safe data transmission and receiving technology and protection of privacy have become the key elements for the GSM service. However, many researchers have pointed out the problems inherent to the security algorithm and protocol...
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