Trust Models for Ubuitous Mobile Systems

2007 ◽  
pp. 63-70
Author(s):  
Mike Burmester
Keyword(s):  
Information Flow ◽  
Network Topology ◽  
Ad Hoc ◽  
Mobile Systems ◽  
Essential Requirement ◽  
Open Network ◽  
Trust Relationships ◽  
Trust Models ◽  
Network Environments

This chapter introduces the notion of trust as a means to establish security in mobile ubiquitous applications. It argues that trust is an essential requirement to enable security in open network environments. In particular in wireless ad hoc environments where there is no network topology. In such environments communication can only be achieved via routes that have to be trusted. In general it may be hard, or even impossible, to establish, recall and maintain trust relationships. It is therefore important to understand the limitations of such environments and to find mechanisms that may support trust either explicitly or implicitly. We consider several models that can be used to enable trust in such environments, based on economic, insurance, information flow and evolutionary paradigms.

Trust Models for Ubiquitous Mobile Systems

2008 ◽  
pp. 1450-1455
Author(s):  
Mike Burmester
Keyword(s):  
Information Flow ◽  
Network Topology ◽  
Ad Hoc ◽  
Mobile Systems ◽  
Essential Requirement ◽  
Open Network ◽  
Trust Relationships ◽  
Trust Models ◽  
Network Environments

This chapter introduces the notion of trust as a means to establish security in mobile ubiquitous applications. It argues that trust is an essential requirement to enable security in open network environments. In particular in wireless ad hoc environments where there is no network topology. In such environments communication can only be achieved via routes that have to be trusted. In general it may be hard, or even impossible, to establish, recall and maintain trust relationships. It is therefore important to understand the limitations of such environments and to find mechanisms that may support trust either explicitly or implicitly. We consider several models that can be used to enable trust in such environments, based on economic, insurance, information flow and evolutionary paradigms.

Trust Models for Ubuitous Mobile Systems

2011 ◽  
pp. 397-402
Author(s):  
Mike Burmester
Keyword(s):  
Information Flow ◽  
Network Topology ◽  
Ad Hoc ◽  
Mobile Systems ◽  
Essential Requirement ◽  
Open Network ◽  
Trust Relationships ◽  
Trust Models ◽  
Network Environments

This chapter introduces the notion of trust as a means to establish security in mobile ubiquitous applications. It argues that trust is an essential requirement to enable security in open network environments. In particular in wireless ad hoc environments where there is no network topology. In such environments communication can only be achieved via routes that have to be trusted. In general it may be hard, or even impossible, to establish, recall and maintain trust relationships. It is therefore important to understand the limitations of such environments and to find mechanisms that may support trust either explicitly or implicitly. We consider several models that can be used to enable trust in such environments, based on economic, insurance, information flow and evolutionary paradigms.

Trust Models for Ubiquitous Mobile Systems

2009 ◽  
pp. 2827-2832
Author(s):  
Mike Burmester
Keyword(s):  
Information Flow ◽  
Network Topology ◽  
Ad Hoc ◽  
Mobile Network ◽  
Mobile Systems ◽  
Network Systems ◽  
Essential Requirement ◽  
Open Network ◽  
Trust Relationships ◽  
Trust Models

This chapter introduces the notion of trust as a means to establish security in ubiquitous mobile network systems. It argues that trust is an essential requirement to enable security in any open network environments, and in particular, in wireless ad hoc environments where there is no network topology. In such environments, communication can only be achieved via routes that have to be trusted. In general it may be hard, or even impossible, to establish, recall, and maintain trust relationships. It is therefore important to understand the limitations of such environments and to find mechanisms that may support trust either explicitly or implicitly. We consider several models that can be used to enable trust in such environments, based on economic, insurance, information flow, and evolutionary paradigms.

Trust Models for Ubiquitous Mobile Systems

2011 ◽  
pp. 369-375
Author(s):  
Mike Burmester
Keyword(s):  
Information Flow ◽  
Network Topology ◽  
Ad Hoc ◽  
Mobile Network ◽  
Mobile Systems ◽  
Network Systems ◽  
Essential Requirement ◽  
Open Network ◽  
Trust Relationships ◽  
Trust Models

This chapter introduces the notion of trust as a means to establish security in ubiquitous mobile network systems. It argues that trust is an essential requirement to enable security in any open network environments, and in particular, in wireless ad hoc environments where there is no network topology. In such environments, communication can only be achieved via routes that have to be trusted. In general it may be hard, or even impossible, to establish, recall, and maintain trust relationships. It is therefore important to understand the limitations of such environments and to find mechanisms that may support trust either explicitly or implicitly. We consider several models that can be used to enable trust in such environments, based on economic, insurance, information flow, and evolutionary paradigms.

Trust Models for Ubiquitous Mobile Systems

2009 ◽  
pp. 249-254
Author(s):  
Mike Burmester
Keyword(s):  
Information Flow ◽  
Network Topology ◽  
Ad Hoc ◽  
Mobile Network ◽  
Mobile Systems ◽  
Network Systems ◽  
Essential Requirement ◽  
Open Network ◽  
Trust Relationships ◽  
Trust Models

This chapter introduces the notion of trust as a means to establish security in ubiquitous mobile network systems. It argues that trust is an essential requirement to enable security in any open network environments, and in particular, in wireless ad hoc environments where there is no network topology. In such environments, communication can only be achieved via routes that have to be trusted. In general it may be hard, or even impossible, to establish, recall, and maintain trust relationships. It is therefore important to understand the limitations of such environments and to find mechanisms that may support trust either explicitly or implicitly. We consider several models that can be used to enable trust in such environments, based on economic, insurance, information flow, and evolutionary paradigms.

A Context-Aware Model of Trust for Facilitating Secure Ad Hoc Collaborations

2010 ◽  
pp. 250-281 ◽  
Author(s):  
Indrajit Ray ◽  
Indrakshi Ray ◽  
Sudip Chakraborty
Keyword(s):  
Incomplete Information ◽  
Ad Hoc ◽  
Sensitive Information ◽  
Trust Value ◽  
Trust Relationships ◽  
The Face ◽  
Trust Models ◽  
Almost All ◽  
Ad Hoc Collaborations ◽  
The Given

Ad hoc collaborations often necessitate impromptu sharing of sensitive information or resources between member organizations. Each member of resulting collaboration needs to carefully assess and tradeoff the requirements of protecting its own sensitive information against the requirements of sharing some or all of them. The challenge is that no policies have been previously arrived at for such secure sharing (since the collaboration has been formed in an ad hoc manner). Thus, it needs to be done based on an evaluation of the trustworthiness of the recipient of the information or resources. In this chapter, the authors discuss some previously proposed trust models to determine if they can be effectively used to compute trustworthiness for such sharing purposes in ad hoc collaborations. Unfortunately, none of these models appear to be completely satisfactory. Almost all of them fail to satisfy one or more of the following requirements: (i) well defined techniques and procedures to evaluate and/or measure trust relationships, (ii) techniques to compare and compose trust values which are needed in the formation of collaborations, and (iii) techniques to evaluate trust in the face of incomplete information. This prompts the authors to propose a new vector (we use the term “vector” loosely; vector in this work means a tuple) model of trust that is suitable for reasoning about the trustworthiness of systems built from the integration of multiple subsystems, such as ad hoc collaborations. They identify three parameters on which trust depends and formulate how to evaluate trust relationships. The trust relationship between a truster and a trustee is associated with a context and depends on the experience, knowledge, and recommendation that the truster has with respect to the trustee in the given context. The authors show how their model can measure trust in a given context. Sometimes enough information is not available about a given context to calculate the trust value. Towards this end the authors show how the relationships between different contexts can be captured using a context graph. Formalizing the relationships between contexts allows us to extrapolate values from related contexts to approximate a trust value of an entity even when all the information needed to calculate the trust value is not available. Finally, the authors develop formalisms to compare two trust relationships and to compose two or more of the same – features that are invaluable in ad hoc collaborations.

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