摘要
云际计算是支持公有云、私有云、边缘云和微云等异源异质云服务以自主对等方式纵横协作共赢的新型计算模式,可为独立云服务实体间行为交互、信任构建和贡献度量等提供防篡改、可追溯能力支持,进而最大限度削弱阻碍不同利益攸关者协作的不确定性因素.提升云际协作意愿和效率需要基于何种机理进行何种机制创新,是云际计算成长演化中需要进一步阐述的新问题.本文首先以基于“数字空间证据”构建或增强信任关系为设计原则,提出了基于区块链的云际分布记账软件定义模型,并系统阐述了分布记账支撑云际服务独立性、可审计性以及释放云际协作潜能的内在机理;其次,面向云际复杂交互行为,深化并固化了云际分布记账运行逻辑流程及关键环节的设计,避免其在错综复杂要素综合作用下呈现不确定冲突和矛盾;再次,针对数据要素流通及复杂异步交互场景,细化并优化了云际分布记账合约逻辑模型;最后,论述了以分布共识、智能合约等为代表的云际分布记账核心技术及相应指标的现状,并对关键技术的目标属性体系、前瞻性挑战等进行了展望.
JointCloud Computing is a new computing paradigm that supports heterogeneous cloud services such as public cloud,private cloud,edge cloud,and micro cloud to achieve a win-win situation with the autonomous peer,coopera-tion way.It provides tamper-proof,traceability support for behavior interactions,trust building,and contribution measure-ment between independent cloud service entities,thereby minimizing the uncertainties that hinder collaboration between dif-ferent stakeholders.What principles and mechanisms need to be designed to improve the willingness and efficiency of JointCloud collaboration is a new proposition that needs to be further elaborated in the evolution of JointCloud computing.Firsthy,based on the design principle of building or enhancing trust relationship on the basis of“digital space evidence”,this paper proposes the software-defined model of JointCloud distributed ledger(JCDL)based on BlockChain and systemat-ically expounds the inherent mechanism of distributed ledger supporting the JointCloud service independence,auditability and unleashing the potential of JointCloud cooperation.Secondly,facing the complex interaction in JointCloud,it deepens and solidifies the design of the logical process and key aspects of the JCDL operation,so as to avoid the uncertain conflicts and contradictions under the comprehensive action of complicated elements.Thirdly,the logical model of JCDL contract is refined and optimized for the scenario of data asset flow and complex asynchronous interaction.Finally,the paper discuss-es the core technologies and corresponding indicators of JCDL represented by distributed consensus and smart contract and looks forward to the target attribute system and forward-looking challenges of key techniques.
作者
史佩昌
王怀民
傅翔
SHI Pei-chang;WANG Huai-min;FU Xiang(National Key Laboratory of Parallel and Distributed Processing,College of Computer Science,National University of Defense Technology,Changsha,Hunan 410073,China;Key Laboratory of Software Engineering for Complex Systems,College of Computer Science,National University of Defense Technology,Changsha,Hunan 410073,China)
出处
《电子学报》
EI
CAS
CSCD
北大核心
2024年第1期19-33,共15页
Acta Electronica Sinica
基金
国家自然科学基金(No.61772030)
之江实验室重大科研项目(No.2021PE0AC01)
国防科技创新项目。
关键词
云际计算
区块链
分布记账
分布共识
智能合约
JointCloud computing
BlockChain
distributed ledger
distributed consensus
smart contract
