Cloud computing uses virtualization technology to provide users with different types of resources in the form of services. The third party plays a crucial role in coordinating cloud market between cloud providers and users. As for providing services or trading, the extra broker fees are required for the middleman because the third party facilitates transactions. Moreover, there is no guarantee that the third party is trusted, which can lead to information leakage, data tampering, and unfair trading. Blockchain technology is an emerging technology that can store and communicate data between entities that unnecessarily trust each other. To resolve the problems, this paper presents the blockchain-based trust and fair system and develops the smart contract of auction and transaction. The prototype system is implemented based on the Hyperledger Fabric. The experimental results prove the feasibility of the scheme.

中文翻译：

---

用于云中动态虚拟机配置和分配的基于区块链的信任拍卖

云计算利用虚拟化技术，以服务的形式为用户提供不同类型的资源。第三方在协调云提供商和用户之间的云市场方面起着至关重要的作用。至于提供服务或交易，中间人需要额外的经纪人费用，因为第三方促成交易。此外，无法保证第三方是可信的，这可能导致信息泄露、数据篡改和不公平交易。区块链技术是一种新兴技术，可以在不必要地相互信任的实体之间存储和通信数据。为了解决这些问题，本文提出了基于区块链的信任与公平系统，并开发了拍卖和交易的智能合约。原型系统基于 Hyperledger Fabric 实现。