Adaptive Policy Evaluation Framework for Flexible Service Provision

Satō, Hiroyuki; Tanimoto, Shigeaki; Kobayashi, Takao; Kanai, Atsushi

doi:10.1109/sose.2018.00024

Cited by 2 publications

(2 citation statements)

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“…P3P [8] was the framework that evaluated the published policy of Web servers. Partially inspired by the idea of P3P, the direct evaluation of security and privacy policies are proposed [2]. The policy evaluation framework is another facet of this study.…”

Section: Related Workmentioning

confidence: 99%

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Elastic Trust Management in Decentralized Computing Environments

Sato

Ding

2022

Modern Management Based on Big Data III

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Today, the Internet trust is a critical framework that forms a fundamental premise for network security. Several identity federations are deployed to embody the classic theory of trust framework. However, in an emerging blockchain-based decentralized system, we need to model dynamically grown/shrunken trust. This paper models the trust elasticity by formalizing PDP(policy decision point)s of enrolling entities and introducing Trust PDP. In the proposed formalization, assertions are exchanged among participating nodes to express the knowledge of the PDP of nodes. The knowledge may grow by exchanging assertions. Furthermore, we propose exchanging assertions on the trust relationship to express the elasticity of trust. The judgment on trust is operated by Trust PDP that affects the elasticity of trust. The proposed theory is applied to the trust establishment of blockchain and an authorization management system based on blockchain. The trust in the blockchain environment is expressed in terms of Trust PDP.

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Section: Related Workmentioning

confidence: 99%

“…In the classic trust framework, assertions are mainly used for security reasons. On the side of an RP, Sato [2] has proposed a model in which an RP accepts a service request accompanied with related assertions. The accepting RP runs its policies under which the received assertions are evaluated.…”

Section: Introductionmentioning

confidence: 99%

Elastic Trust Management in Decentralized Computing Environments

Sato

Ding

2022

Modern Management Based on Big Data III

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Elastic Trust Model for Dynamically Evolving Trust Frameworks

Satō

Yamamoto

2019

IEICE Trans. Inf. & Syst.

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Today, trust plays a central role in services in distributed environments. Conventionally deployed trust has been based on static framework in which a server responds to a service request under statically determined policies. However, in accordance with evolution of distributed environments empowered with IoT and federated access mechanisms, dynamic behavior must be analyzed and taken into service provision, which conventional trust cannot properly handle. In this paper, we propose an extension of PDP (Policy Decision Point) in which assertions together with service requests are evaluated. Furthermore, the evaluation may be dynamically configured in dynamically evolving trust environment. We propose an elastic trust model in view of dynamic trust environment. This enables intuitionistic modeling of typical concrete elastic distributed services.

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Adaptive Policy Evaluation Framework for Flexible Service Provision

Cited by 2 publications

References 18 publications

Elastic Trust Management in Decentralized Computing Environments

Elastic Trust Management in Decentralized Computing Environments

Elastic Trust Model for Dynamically Evolving Trust Frameworks

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