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Trust Evaluation in Cross-Cloud Federation: Survey and Requirement Analysis

机译:跨云联合中的信任评估:调查和需求分析

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摘要

Cross-Cloud Federation (CCF) is beneficial for heterogeneous Cloud Service Providers (CSPs) for leasing additional resources from each other. Despite the benefits of on-demand scalability and enhanced service footprints for better service quality, the adoption of CCF is however mainly hindered due to the lack of a comprehensive trust model. The basic aim of such a model should be to address the security and performance concerns of a home CSP on its foreign peers before placing its users' data and applications in their premises. A transitivity of users' trust on home CSP and home CSP's trust on its foreign CSPs marks the uniqueness of trust paradigm in CCF. Addressing the concerns of cloud-to-cloud trust paradigm is inevitable to achieve users' trust in a federation. Various trust models have been proposed in literature for conventional and multi-cloud computing environments. They focus on user requirements but none on federation perspective. Their applicability to CCF for addressing the concerns of cloud-to-cloud trust paradigm requires further consideration. For this reason, we have first outlined the general characteristics of CCF as being dynamic, multi-level and heterogeneous. Afterwards, cloud-to-cloud trust paradigm is proposed based on a set of unique principles identified as (i) trust bi-directionality, (ii) trust composition, (iii) delegation control, and (iv) Resource awareness. An insightful review of Trust Management Systems (TMS) proposed in literature reveals their shortcomings in addressing the requirements of cloud-to-cloud trust paradigm. To overcome these shortcomings, we suggest that some challenges can be merely addressed by aligning the existing methods to the nature of CCF. The remaining challenges require entirely new mechanisms to be introduced. A demonstration of this concept is presented in the form of a requirement matrix suggesting how the characteristics and properties of both CCF and the TMS are influenced by each other. This requirement matrix reveals the potential avenues of research for a TMS aimed specifically for CCF.
机译:跨云联合(CCF)对于异构云服务提供商(CSP)相互之间租借额外资源很有帮助。尽管按需可伸缩性和增强的服务覆盖区可带来更好的服务质量,但由于缺乏全面的信任模型,主要阻碍了CCF的采用。这种模型的基本目标应该是在将其用户的数据和应用程序放置在其本地之前,解决本地CSP对外国同行的安全性和性能问题。用户对本地CSP的信任和本地CSP对国外CSP的信任的可传递性标志着CCF中信任范式的独特性。解决云对云信任范例的问题对于在联盟中获得用户的信任是不可避免的。在文献中已经针对常规和多云计算环境提出了各种信任模型。他们关注用户需求,但不关注联合视角。它们对CCF的适用性解决了云到云信任范例的问题,需要进一步考虑。因此,我们首先概述了CCF的一般特征,它们是动态的,多层的和异构的。之后,基于一组独特的原则提出了云到云信任范例,这些原则被确定为:(i)双向信任,(ii)信任组成,(iii)委派控制和(iv)资源意识。文献中对信任管理系统(TMS)进行的深入分析揭示了它们在解决云到云信任范例要求方面的缺点。为了克服这些缺点,我们建议仅通过使现有方法与CCF的性质保持一致就可以解决一些挑战。剩余的挑战需要引入全新的机制。以需求矩阵的形式对这一概念进行了演示,表明了CCF和TMS的特性和属性如何相互影响。该需求矩阵揭示了专门针对CCF的TMS的潜在研究途径。

著录项

  • 来源
    《ACM Computing Surveys》 |2020年第1期|19.1-19.37|共37页
  • 作者

  • 作者单位

    COMBATS Univ Islamabad Dept Comp Sci Commun Networks Res Ctr POB 54000 Lahore Campus Lahore Pakistan|Govt Coll Univ Dept Software Engn Faisalabad Pakistan;

    COMBATS Univ Islamabad Dept Comp Sci Commun Networks Res Ctr POB 54000 Lahore Campus Lahore Pakistan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Cross-cloud; federation; inter-cloud; trust; reputation; trust models;

    机译:跨云;联邦;云间相信;声誉;信任模型;
  • 入库时间 2022-08-18 05:19:59

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