Analysis of Trust Chain Transitivity in TCG

2012 ◽  
Vol 490-495 ◽  
pp. 2042-2046
Author(s):  
Ce Zhang ◽  
Gang Cui ◽  
Zhong Chuan Fu ◽  
Yong Dong Xu

Trust chain is fundamental technology of Trusted Computing facing many problems. This paper points out that trust chain is made of two stages, analyses different trust relation building mechanism of two stages, and also thinks and proves that trust loss during trust transitivity process comes from composition loss and so on, describes behavior of trust chain transitivity quantitatively. After discussing key factors affect the trust, this paper defines the general trust transitivity model and trust loss measurement function, and discusses trust loss of Stage1 in TCG.

2010 ◽  
Vol 33 (7) ◽  
pp. 1165-1176 ◽  
Author(s):  
Ming-Di XU ◽  
Huan-Guo ZHANG ◽  
Heng ZHAO ◽  
Jun-Lin LI ◽  
Fei YAN

2012 ◽  
Vol 268-270 ◽  
pp. 1869-1872
Author(s):  
Rui Hao ◽  
Xin Guang Peng ◽  
Lei Xiu

For the problem of trust chain of Trusted Computing Group (TCG), which only measures static integrity to the system resources, we extend the TCG chain to the software application layer and propose to extract return addresses of functions in call stacks dynamically for obtaining system call short sequences as software behavior and By monitoring softare behavior based on SVM,we realize software trusted dynamic measurement.


2020 ◽  
Vol 10 (5) ◽  
pp. 663-670
Author(s):  
Pengye Zhu ◽  
Linhui Sun ◽  
Yunfeng Song ◽  
Liao Wang ◽  
Xiaofang Yuan ◽  
...  

Human errors are commonplace among hoist drivers in the hoisting task of coalmines. To reduce these errors and prevent accidents, it is necessary to identify the features of cognitive behaviors and main cognitive errors of the hoist drivers. This paper analyzes the accident cases and operating flow of coalmine hoist, and establishes a cognitive process model of coalmine hoist drivers. Further, the cognitive behaviors and functions of the drivers were analyzed stage by stage, revealing the distributions of their main cognitive behaviors and functions. It is learned that most coalmine hoist accidents concentrate in two stages: lifting, and operation monitoring. The operating processes in the two stages were further deliberated. The specific operations were extracted as the influencing factors of human errors, and the importance of each index was calculated through analytic hierarchy process (AHP). The research results provide a theoretical reference for identifying the key factors affecting the human errors of the operations by coalmine hoist drivers, and shed new light on how to prevent such errors.


2016 ◽  
Vol 20 (4) ◽  
pp. 1 ◽  
Author(s):  
Xiaoning Zhang ◽  
Yunpeng Dong

The Dabashan thrust nappe structure at the southern margin of the Qinling orogenic belt suffered at least two stages of evolution which are Late Triassic plate subduction collisional orogeny between North China block, Qinling micro-plate and Yangtze block followed by intracontinental orogeny since the Meso-Cenozoic. A prominent topography characteristic within the Dabashan area is a southwestward extrusive arc (Bashan Arc fault) that is one of key factors to understand the geodynamic condition of the Dabashan thrust nappe structure. In this work, two-dimensional plan-view models are constructed to simulate the collisional and intracontinental orogenic movements, and the factors that may control the formation of the Bashan Arc fault are analysed. The modelling results show that the compressive stress produced by the plates collision along both north and south boundaries is the main driving force. The dextral shearing derived from the inconsistent shape on the block margins is the main controller. Rigid tectonic units such as Bikou and Hanan-Micangshan terranes, Foping and Wudang domes, as well as Shennongjia-Huangling anticline also contribute as “anchor” effects. Additionally, the rheology properties of rock material in the Dabashan area affect the shape of the arc. Condición geológica y geodinámica para la formación estructural de la falla de cabalgamiento en las montañas Dabashan basada en el modelo numérico del software FLAC ResumenLa estructura de la falla de cabalgamiento de las montañas Dabashan en el margen sur del cinturón orogénico de Qinling sufrió por lo menos dos etapas de evolución, la colisión orogénica del Triásico Superior entre el bloque de la China del Norte, la microplaca de Qinling y el bloque Yangtze, y la orogénesis intracontinental desde el Meso-Cenozoico. Una característica topográfica prominente del área de Dabashan es un arco extrusivo (falla Arco de Bashan) hacia el suroeste, que es un factor determinante para entender la condición geodinámica de la falla de cabalgamiento en las montañas Dabashan. En este trabajo se construyeron modelos bidimensionales planos para simular los movimientos de colisión e intracontinental orogénicos y se analizaron los factores que podrían controlar la formación de la falla del Arco de Bashan. Los resultados del modelado muestran que el esfuerzo de compresión producido por las placas de colisión en los límites norte y sur es la principal fuerza impulsora de la falla. La principal controladora es la fuerza de cizallamiento dextral derivada de la forma inconsistente en los margenes del bloque. Las unidades tectónicas rígidas como los terrenos Bikou y Hanan- Micangshan, el domo Foping y Wudang, al igual que el anticlinal Shennongjia-Huangling tienen funciones de ancla. Adicionalmente, las propiedades reológicas del material rocoso en el área Dabashan afectan la forma del arco.


2020 ◽  
Vol 6 (4) ◽  
pp. 905-918
Author(s):  
Muhammad Shaukat Malik ◽  
Sabah Younus

This research article aims at exploring the Voluntary Tax-compliance behaviour of the small and medium-size business enterprises for two countries, Pakistan and Turkey. Voluntary tax-compliance from SME’s is considered as major risk area by the tax-collection authorities of both developing and developed countries, authorities from both desire to bring individuals belonging to SME’s to pay taxes on a voluntary basis, in order to generate higher revenues for their governments. Thus, data was collected from the owners of SME’s of both countries through a questionnaire, data thus collected was analysed using SPSS and PLS-Smart. The results suggested that voluntary tax-compliance can be achieved by building a mutual trust relation and by exercising legitimate use of power by the tax authorities, results also signify that subjective norms, perceived behavioural control, attitude towards taxes and moral obligation are also key factors in determining the voluntary tax-compliance behaviour as suggested by Kirchler,  Hoelzl and Wahl,  (2008). Also, this article tests the mediating role of the intention of building positive voluntary tax-compliance behaviour as suggested by Ajzen (1991). This study is an important contribution in literature as it incorporates data from two countries, Pakistan (a developing nation) and Turkey (that is making its mark in the list of developed countries). This research work can be further extended by incorporating comparative analysis among the business owners belonging to developed, semi-developed and developing countries.


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