A blockchain-based subjective and objective collaborative cloud service trust management method and system

Abstract

The invention discloses a block chain-based subjective and objective collaborative cloud service trust management method and system, using the block chain as a trust manager, under the coordinated control of the dual function mechanism of trust evaluation and trust detection, according to different needs The subjective and objective index parameters are weighted independently, and credit marks are introduced at the same time, which are constantly updated during trust testing and evaluated as an important indicator during trust evaluation; an insurance incentive mechanism is established during trust testing, starting from CSP Purchase insurance to motivate CSPs and users, and protect the rights and interests of users who have purchased insurance by punishing CSPs that violate the contract, and any operations such as trust detection and trust evaluation are open, transparent, sequential and non-tamperable, so as to realize the openness and transparency of CSP service behaviors , Traceable and anti-repudiation decentralized systematic restraint and control of subjective and objective coordination.

Description

technical field [0001] The invention belongs to the technical field of cloud computing, and in particular relates to a method and system for trust management of subjective and objective collaborative cloud services based on blockchain. Background technique [0002] Blockchain is a chain-like data structure, which is essentially a shared distributed database that cannot be tampered with, open, transparent, and traceable collectively maintained. It is also a distributed data storage, P2P network, consensus algorithm, encryption algorithm, etc. A new computing paradigm formed by the fusion of various computer technologies, in which the blocks are connected in series by hash fingerprints, and each block contains a batch of network transaction information agreed and verified by the consensus mechanism , and smart contracts can also be used for application development, operating and using data in the form of transactions, which is a truly decentralized new application model and di...

AI Technical Summary

Problems solved by technology

[0003] Cloud computing services usually provide general-purpose online business applications accessed through browsers, while software and data are stored on servers. In today's era of prosperous network and computing resources, there are infinitely diverse and diverse computing services for users to choose from all the time. , but the rich and diverse supply has also increased users' concerns about matching and credibility. For this reason, traditional trust evaluation, security access control and other solutions have emerged, but these solutions are only for the cloud service provider (Cloud Service Provider) beforehand. Provider (referred to as CSP) is a quality of service (Quality of Service, referred to as QoS) judgment, which simply serves as a screening function, without systematic constraints and control on CSP service behavior, let alone protection of user rights; in addition, Since the traditional CSP trust management model has the inherent characteristics of information asymmetry and invisible behavior, it still has the disadvantages of high risk of information leakage and operational behavior that can be forged and denied. Therefore, we propose a blockchain technology-based Cloud service trust management model based on subjective and objective collaboration

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