Nonmonotonic Trust Management for P2P Applications

Czenko, Marcin; Doumen, Jeroen; Etalle, Sandro; Hartel, Pieter H.; Hartog, Jerry den

doi:10.1016/j.entcs.2005.09.037

Cited by 24 publications

(19 citation statements)

References 24 publications

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“…Most trust management languages are monotonic: adding new assertion to a query can never result in canceling an action, which was accepted before [9]. Therefore, each policy statement or credential added to the system may only increase the capabilities and privileges granted to others, making revocation of rights impossible.…”

Section: A Time Validity In Rt Tmentioning

confidence: 99%

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More Practical Application of Trust Management Credentials

Felkner

Kozakiewicz

2015

Annals of Computer Science and Information Systems

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Abstract-Trust management is an approach to access control in distributed open systems, where access control decisions are based on policy statements made by multiple principals. The family of Role-based Trust management languages (RT) is an effective means for representing security policies and credentials in decentralized, distributed, large scale access control systems. It provides a set of role assignment credentials. A credential provides information about the privileges of users and the security policies issued by one or more trusted authorities.The main purpose of this paper is to show how extensions can make the RT family languages more useful in practice. It shows how security policies can be made more realistic by including timing information, maintaining the procedure or parameterizing the validity of credentials.

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Section: A Time Validity In Rt Tmentioning

confidence: 99%

“…Let us get back to our example and use credentials (9) and (24)-(31) (to make the notation shorter, let us use C instead of Company). According to rule (CW P 1 ) we can infer:…”

Section: Example 71 (Time Validity In Inference System For Example 4mentioning

confidence: 99%

More Practical Application of Trust Management Credentials

Felkner

Kozakiewicz

2015

Annals of Computer Science and Information Systems

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“…Czenko et al (2005) present a version of RT with non-monotonic features. Appel & Felten (1999) use a logic-based approach to authentication.…”

Section: Some Systems and Modelsmentioning

confidence: 99%

Trust models in ubiquitous computing

Krukow¹,

Nielsen

Sassone

2008

Phil. Trans. R. Soc. A.

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“…RuleControlled Environment For Evaluation of Rules and Everything Else (REFEREE ) [8], the Trust Establishment System (TES) from IBM [9] and RT [10] are also nonmonotonic.…”

Section: Non-monotonic Trust Management Systemsmentioning

confidence: 99%

Shinren: Non-monotonic Trust Management for Distributed Systems

Dong

Dulay

2010

IFIP Advances in Information and Communication Technology

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Abstract. The open and dynamic nature of modern distributed systems and pervasive environments presents significant challenges to security management. One solution may be trust management which utilises the notion of trust in order to specify and interpret security policies and make decisions on security-related actions. Most logic-based trust management systems assume monotonicity where additional information can only result in the increasing of trust. The monotonic assumption oversimplifies the real world by not considering negative information, thus it cannot handle many real world scenarios. In this paper we present Shinren 1 , a novel non-monotonic trust management system based on bilattice theory and the any-world assumption. Shinren takes into account negative information and supports reasoning with incomplete information, uncertainty and inconsistency. Information from multiple sources such as credentials, recommendations, reputation and local knowledge can be used and combined in order to establish trust. Shinren also supports prioritisation which is important in decision making and resolving modality conflicts that are caused by non-monotonicity.

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Nonmonotonic Trust Management for P2P Applications

Cited by 24 publications

References 24 publications

More Practical Application of Trust Management Credentials

More Practical Application of Trust Management Credentials

Trust models in ubiquitous computing

Shinren: Non-monotonic Trust Management for Distributed Systems

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