scholarly journals Weighted Pushdown Systems and Trust-Management Systems

2006 ◽  
pp. 1-26 ◽  
Author(s):  
Somesh Jha ◽  
Stefan Schwoon ◽  
Hao Wang ◽  
Thomas Reps
Keyword(s):  
Trust Management ◽  
Management Systems

scholarly journals Robust and Accurate Trust Establishment Scheme for Wireless Sensor Network

2020 ◽  
Vol 12 (6) ◽  
pp. 14-29
Author(s):  
Audrey NANGUE ◽  
◽  
Elie FUTE TAGNE ◽  
Emmanuel TONYE
Keyword(s):  
Wireless Sensor Networks ◽  
Wireless Sensor Network ◽  
Sensor Networks ◽  
Sensor Network ◽  
Trust Management ◽  
Wireless Sensor ◽  
Management Systems ◽  
Trust Value ◽  
Direct Trust ◽  
Indirect Trust

The success of the mission assigned to a Wireless Sensor Network (WSN) depends heavily on the cooperation between the nodes of this network. Indeed, given the vulnerability of wireless sensor networks to attack, some entities may engage in malicious behavior aimed at undermining the proper functioning of the network. As a result, the selection of reliable nodes for task execution becomes a necessity for the network. To improve the cooperation and security of wireless sensor networks, the use of Trust Management Systems (TMS) is increasingly recommended due to their low resource consumption. The various existing trust management systems differ in their methods of estimating trust value. The existing ones are very rigid and not very accurate. In this paper, we propose a robust and accurate method (RATES) to compute direct and indirect trust between the network nodes. In RATES model, to compute the direct trust, we improve the Bayesian formula by applying the chaining of trust values, a local reward, a local penalty and a flexible global penalty based on the variation of successful interactions, failures and misbehaviors frequency. RATES thus manages to obtain a direct trust value that is accurate and representative of the node behavior in the network. In addition, we introduce the establishment of a simple confidence interval to filter out biased recommendations sent by malicious nodes to disrupt the estimation of a node's indirect trust. Mathematical theoretical analysis and evaluation of the simulation results show the best performance of our approach for detecting on-off attacks, bad-mouthing attacks and persistent attacks compared to the other existing approaches.

scholarly journals Trust Management Systems in Cloud Services Environment: Taxonomy of Reputation Attacks and Defense Mechanisms

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Salah T. Alshammari ◽  
Khalid Alsubhi ◽  
Hani Moaiteq Aljahdali ◽  
Ahmed Mohammed Alghamdi
Keyword(s):  
Trust Management ◽  
Defense Mechanisms ◽  
Cloud Services ◽  
Management Systems

Research on SPKI/SDSI Cridencials and RT0 Cridencials

2011 ◽  
Vol 403-408 ◽  
pp. 2176-2179
Author(s):  
Xiu Hua Geng ◽  
Xiao Lei Zhang
Keyword(s):  
Access Control ◽  
Trust Management ◽  
Large Scale ◽  
Control Mechanism ◽  
Management Systems ◽  
Distributed Access Control ◽  
Large Scale Network ◽  
Scale Network ◽  
Access Control Mechanism

Trust management is a distributed access control mechanism for open, large-scale network. SPKI/SDSI and RT0 are typical trust management systems. This paper compares the different crendentials in those systems essentially, and the result shows that although RT0 crendentials are relatively simple, they are expressively eauivalent to SPKI/SDSI crendentials.

The importance of considering unauthentic transactions in trust management systems

2012 ◽  
Vol 72 (6) ◽  
pp. 809-818 ◽  
Author(s):  
Pilar Manzanares-Lopez ◽  
Josemaria Malgosa-Sanahuja ◽  
Juan Pedro Muñoz-Gea
Keyword(s):  
Trust Management ◽  
Management Systems
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