Proceedings of the 2022 4th Blockchain and Internet of Things Conference最新文献

Distributed Random Number Generation Method on Smart Contracts 智能合约的分布式随机数生成方法

Proceedings of the 2022 4th Blockchain and Internet of Things Conference Pub Date : 2022-07-08 DOI: 10.1145/3559795.3559796

Kentaro Sako, Shin'ichiro Matsuo, Tatsuya Mori

{"title":"Distributed Random Number Generation Method on Smart Contracts","authors":"Kentaro Sako, Shin'ichiro Matsuo, Tatsuya Mori","doi":"10.1145/3559795.3559796","DOIUrl":"https://doi.org/10.1145/3559795.3559796","url":null,"abstract":"We propose N-choice game (NCG), a decentralized pseudo-random number generation method that can be executed on smart contracts. Of the M participants, one is a dealer, and the rest are players, each with a different role. Each participant randomly chooses one value between 0 and N − 1 and receives a score determined by the NCG rule. The amount of reward each participant receives is determined by the score. The values chosen by the participants are combined and hashed into a pseudo-random number. The NCG framework is designed to achieve the following three goals: (1) Incentivize participants to provide random choices, (2) Evaluate the level of randomness in the decentralized environment, and (3) Establish high performance. We implement the NCG framework in Solidity and evaluate its performance. Our extensive experiments revealed that unless more than 90% of NCG players collide, the generated random numbers have high randomness that can pass the NIST randomness test. The experiments also demonstrated that the throughput of random number generation in NCG was 129 times faster than in the existing framework, Random Bit Generator [2].","PeriodicalId":190093,"journal":{"name":"Proceedings of the 2022 4th Blockchain and Internet of Things Conference","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116608773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Blockchain Communication Resource Optimization Consensus Method 一种区块链通信资源优化共识方法

Proceedings of the 2022 4th Blockchain and Internet of Things Conference Pub Date : 2022-07-08 DOI: 10.1145/3559795.3559810

Jingchang Yu, Tao Shen, Fenhua Bai, Zhuo Yu, Jianzhao Luo

{"title":"A Blockchain Communication Resource Optimization Consensus Method","authors":"Jingchang Yu, Tao Shen, Fenhua Bai, Zhuo Yu, Jianzhao Luo","doi":"10.1145/3559795.3559810","DOIUrl":"https://doi.org/10.1145/3559795.3559810","url":null,"abstract":"Since the emergence of Bitcoin, the blockchain technology behind it has been gradually gaining attention from all walks of life. As the core of blockchain technology, the consensus algorithm determines the security, scalability and decentralization of the blockchain and many other important characteristics. The efficiency of the current blockchain consensus algorithm still needs to be improved. To address this issue, this paper proposes a consensus algorithm for communication resource optimization (CCRO), which divides consensus nodes into different domains, calculates the trust of nodes by several trust factors, and assigns different roles to nodes according to the trust. It also introduces a new class of nodes, i.e., communication nodes, which are responsible for the delivery of messages in the consensus process, and achieves the communication resource optimization of the blockchain system. By building an experimental platform, we verify the performance of CCRO, which downscales the inter-node consensus communication protocol, optimizes the regional data synchronization protocol, reduces the network communication overhead, and effectively improves the consensus efficiency.","PeriodicalId":190093,"journal":{"name":"Proceedings of the 2022 4th Blockchain and Internet of Things Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134121691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Research on Smart Exhibition Based on Mobile Internet Perspective 基于移动互联网视角的智慧会展研究

Proceedings of the 2022 4th Blockchain and Internet of Things Conference Pub Date : 2022-07-08 DOI: 10.1145/3559795.3559812

Jingnan Wu, Shifeng Wu

{"title":"Research on Smart Exhibition Based on Mobile Internet Perspective","authors":"Jingnan Wu, Shifeng Wu","doi":"10.1145/3559795.3559812","DOIUrl":"https://doi.org/10.1145/3559795.3559812","url":null,"abstract":"Using information acquisition and spatial analysis tools such as network data mining, on the basis of multi-level and multi-data sources, statistical data, network monitoring data, field survey data, etc. are summarized and integrated into the same space according to the spatial location and attributes of the data. Under the coordinate system, with the support of multi-source big data such as network clicks, WeChat Yixing, POI hotspot data, mobile phone signaling, network logs, etc., all kinds of information are integrated with each other to form a rich database. In order to obtain a large amount of required exhibitor and audience information from different aspects and multiple perspectives, combine mobile Internet technology to build a systematic smart exhibition platform. Analyze the development momentum of the exhibition industry in the era of rapid development of the Internet, and then combine new technical means and mobile Internet technology to design a smart exhibition platform. Promote the integrated development of the real economy and the digital economy, and promote the deep integration of the Internet and big data with the traditional exhibition economy. Understand and analyze the actual needs of exhibition venues through practical research, data and literature collection, and combine practical problems to conduct cross-disciplinary research from management, psychology, behavior, marketing and other disciplines, and propose solutions","PeriodicalId":190093,"journal":{"name":"Proceedings of the 2022 4th Blockchain and Internet of Things Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128219019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

LBLCO: A Lightweight Blockchain with Low Communication Overhead for Internet of Things LBLCO:面向物联网的低通信开销轻量级区块链

Proceedings of the 2022 4th Blockchain and Internet of Things Conference Pub Date : 2022-07-08 DOI: 10.1145/3559795.3559808

Chao Chen, Mingzhe Liu, Peijun Mo, Cuixu Yuan, Pengyu Dai

{"title":"LBLCO: A Lightweight Blockchain with Low Communication Overhead for Internet of Things","authors":"Chao Chen, Mingzhe Liu, Peijun Mo, Cuixu Yuan, Pengyu Dai","doi":"10.1145/3559795.3559808","DOIUrl":"https://doi.org/10.1145/3559795.3559808","url":null,"abstract":"With the increasing demand for Internet of things (IOT) applications, more devices need to be added to IOT. IOT system using centralized server mode face great security challenges. Blockchain, based on distributed ledger technology, could be a good solution. In order to combine blockchain technology and IOT applications appropriately, this paper proposes a lightweight blockchain with low communication overhead (LBLCO). A new consensus algorithm named proof of repute score based on hidden block (HBPORS) is proposed in LBLCO. The nodes with higher repute score will be more likely to become winner in HBPORS. The repute score mechanism dynamically update the repute score of the nodes according to the contribution and evil behavior of the node in the blockchain system. When the honest node with high repute score obtains the accounting right, it can trigger the hidden block mechanism. Instead of broadcasting the complete information of the packaged block to all nodes, winners can broadcast the low overhead information to other nodes. Through experimental tests, LBLCO can meet the requirements of large number of nodes and fast response speed in the IOT.","PeriodicalId":190093,"journal":{"name":"Proceedings of the 2022 4th Blockchain and Internet of Things Conference","volume":"2014 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125690677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Optimization of Student Physical Health Data Cycle under Computer Blockchain Technology 计算机区块链技术下学生身体健康数据周期的优化

Proceedings of the 2022 4th Blockchain and Internet of Things Conference Pub Date : 2022-07-08 DOI: 10.1145/3559795.3559804

Yan Rao, Qin Wang

{"title":"Optimization of Student Physical Health Data Cycle under Computer Blockchain Technology","authors":"Yan Rao, Qin Wang","doi":"10.1145/3559795.3559804","DOIUrl":"https://doi.org/10.1145/3559795.3559804","url":null,"abstract":"With the rapid development of computer technology and network technology, various industries are actively utilizing modern technology, especially the application of blockchain technology. For several years since the implementation of students' physical fitness testing in my country, there have been problems such as insufficient reliability, data distortion, enormous workload of supervision and evaluation, and insufficient data application in students' physical health data. It is particularly necessary to apply the blockchain technology with the characteristics of decentralization, time stamping, not easy to tamper, and contract autonomy to the student physical health data platform. This paper uses the literature method, statistical analysis method and other research methods to discuss the optimization of student health data cycle in terms of data collection, reporting, database sharing guarantee, and feedback. With the help of computer blockchain technology, optimizing the circulation of health data, realizing accurate data collection, real-time uploading, autonomous management and control, and efficient intervention, has certain practical value and display significance.","PeriodicalId":190093,"journal":{"name":"Proceedings of the 2022 4th Blockchain and Internet of Things Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117277969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Trusted Blockchain-based Data Fingerprinting Differential-Traceability and SkipList Indexing Methods in Privacy Protection 隐私保护中基于可信区块链的数据指纹差异可追溯性和SkipList索引方法

Proceedings of the 2022 4th Blockchain and Internet of Things Conference Pub Date : 2022-07-08 DOI: 10.1145/3559795.3559806

Jiazheng Zhang, Fenhua Bai, Tao Shen, Bei Gong, Jianzhao Luo

{"title":"Trusted Blockchain-based Data Fingerprinting Differential-Traceability and SkipList Indexing Methods in Privacy Protection","authors":"Jiazheng Zhang, Fenhua Bai, Tao Shen, Bei Gong, Jianzhao Luo","doi":"10.1145/3559795.3559806","DOIUrl":"https://doi.org/10.1145/3559795.3559806","url":null,"abstract":"The process of data interaction is often criticized by the public for data privacy leakage, attribution disputes, as well as being maliciously tampered with and difficult to trace the source of data. This paper proposes a data privacy protection and fingerprint tracing method based on the features of decentralization, traceability and non-tampering in blockchain technology. And we combined with the protection of data by secure network platform in trusted computing and differential-traceability algorithm (DTA). We propose a data privacy protection and fingerprint traceability method, and use the SkipList table index structure to improve interaction efficiency. We discuss the proposed data fingerprint-based traceability framework model in a trusted environment using the features of blockchain and trusted computing platforms. In this paper, the data can be processed safely and efficiently to solve the privacy problem, the transaction data is encrypted and recorded on the chain by DTA, and the interaction process uses the SkipList table index to enhance retrieval efficiency. Finally, through multiple experiments and comparison of the results obtained from security testing, it is verified that the blockchain-trusted computing data privacy protection and data fingerprint traceability SkipList table indexing method can achieve traceability for data privacy protection, transaction security management and peer-to-peer verification of encryption and decryption algorithms. We not only provide a secure, trustworthy and efficient data privacy protection model, but also bring a time efficiency optimization of 6ms per 10,000 queries.","PeriodicalId":190093,"journal":{"name":"Proceedings of the 2022 4th Blockchain and Internet of Things Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129226810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Blockchain-based Electricity Retail Contracts Management System 基于区块链的电力零售合同管理系统

Proceedings of the 2022 4th Blockchain and Internet of Things Conference Pub Date : 2022-07-08 DOI: 10.1145/3559795.3559802

Rui Zhou, Kangan Shu, Dejun Xiang, Hang Sun, Yang Liu

引用次数: 0

A Trustworthy Ciphertext-Policy Attribute-Based Encryption Access Control Method Based on FAME and Blockchain 基于FAME和区块链的可信密文策略属性加密访问控制方法

Proceedings of the 2022 4th Blockchain and Internet of Things Conference Pub Date : 2022-07-08 DOI: 10.1145/3559795.3559801

Zijian Zhou, Fenhua Bai, Yingli Liu, Chi Zhang, Tao Shen

{"title":"A Trustworthy Ciphertext-Policy Attribute-Based Encryption Access Control Method Based on FAME and Blockchain","authors":"Zijian Zhou, Fenhua Bai, Yingli Liu, Chi Zhang, Tao Shen","doi":"10.1145/3559795.3559801","DOIUrl":"https://doi.org/10.1145/3559795.3559801","url":null,"abstract":"Ciphertext-policy attribute-based encryption (CP-ABE) has been extensively applied in various types of conditional access control systems since its introduction because of its ability to provide fine-grained and flexible access control to confidential data, thus offering a safe and effective data sharing environment. However, while developing rapidly, the existing CP-ABE access schemes also face some problems, such as trustworthiness issues involving third-party intermediary entities, secret key management problems brought by single attribute authorization centers, and privacy leakage of attributes. How to achieve safe and effective decentralized access control has been a problem to be explored and solved. In this paper, a trustworthy, secure, and efficient ABE(TSE ABE) based on blockchain and fast attribute-based message encryption (FAME) is proposed by us. First, we combine blockchain and FAME and optimize them to make CP-ABE perform better. Second, we implement a trusted authorization model with multiple entities based on the BLS signature and smart contracts to address key privacy issues. Finally, we protect the privacy of attributes in the authorization matching process by RSA encryption algorithm. Through the experimental results, it can be found that the scheme not only has good security and execution performance but also achieves effective protection of user privacy.","PeriodicalId":190093,"journal":{"name":"Proceedings of the 2022 4th Blockchain and Internet of Things Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132626172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Blockchain-based Security Governance Framework of Agricultural Product Traceability Data 基于区块链的农产品可追溯数据安全治理框架

Proceedings of the 2022 4th Blockchain and Internet of Things Conference Pub Date : 2022-07-08 DOI: 10.1145/3559795.3559798

Q. Meng

引用次数: 0

Research on Online Reading User Clustering Method and Application based on FCM Algorithm 基于FCM算法的在线阅读用户聚类方法及应用研究

Proceedings of the 2022 4th Blockchain and Internet of Things Conference Pub Date : 2022-07-08 DOI: 10.1145/3559795.3559799

Xuewei Hu

{"title":"Research on Online Reading User Clustering Method and Application based on FCM Algorithm","authors":"Xuewei Hu","doi":"10.1145/3559795.3559799","DOIUrl":"https://doi.org/10.1145/3559795.3559799","url":null,"abstract":"Reading is one of the important ways for people to absorb knowledge and improve their ability. With more and more extensive network information and more and more popular digital reading, people's reading media is no longer limited to paper text. According to the analysis of various surveys, it is found that online reading has a certain impact on the traditional paper book reading. In this paper, online reading users as the research object, and through offline interviews and questionnaires in the form of 362 valid data. The data is processed, the quantitative data is imported into Matlab, and FCM algorithm is used to cluster similar users according to the characteristics of users. The experimental results show that the clustering effect is the best when SSE index determines that the clustering results are four categories, and the characteristics of the four categories of readers are significantly different. This paper analyzes the characteristics of all kinds of readers, makes corresponding recommendations according to the characteristics of different readers and users, and puts forward corresponding promotion countermeasures, so as to improve users' online reading satisfaction and the use frequency of online reading platform.","PeriodicalId":190093,"journal":{"name":"Proceedings of the 2022 4th Blockchain and Internet of Things Conference","volume":"55 1-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132564396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0