2020 IEEE International Conference on Blockchain (Blockchain)最新文献_第2页

Mining Pool Selection Problem in the Presence of Block Withholding Attack 存在区块扣留攻击的矿池选择问题

2020 IEEE International Conference on Blockchain (Blockchain) Pub Date : 2020-11-01 DOI: 10.1109/Blockchain50366.2020.00047

Kentaro Fujita, Yuanyu Zhang, Masahiro Sasabe, S. Kasahara

{"title":"Mining Pool Selection Problem in the Presence of Block Withholding Attack","authors":"Kentaro Fujita, Yuanyu Zhang, Masahiro Sasabe, S. Kasahara","doi":"10.1109/Blockchain50366.2020.00047","DOIUrl":"https://doi.org/10.1109/Blockchain50366.2020.00047","url":null,"abstract":"Mining, the process where multiple miners compete to add blocks to Proof-of-Work (PoW) blockchains, is of great importance to maintain the tamper-resistance feature of blockchains. In current blockchain networks, miners usually form groups, called mining pools, to improve their revenues. When multiple pools exist, a fundamental mining pool selection problem arises: which pool should each miner join to maximize its revenue? In addition, the existence of mining pools also leads to another critical issue, i.e., Block WithHolding (BWH) attack, where a pool sends some of its miners as spies to another pool to gain extra revenues without contributing to the mining of the infiltrated pool. This paper therefore aims to investigate the mining pool selection issue (i.e., the stable population distribution of miners in the pools) in the presence of BWH attack from the perspective of evolutionary game theory. We first derive the expected revenue density of each pool to determine the expected payoff of miners in that pool. Based on the expected payoffs, we formulate replicator dynamics to represent the growth rates of the populations in all pools. Using the replicator dynamics, we obtain the rest points of the growth rates and discuss their stability to identify the Evolutionarily Stable States (ESSs) (i.e., stable population distributions) of the game. Simulation and numerical results are also provided to corroborate our analysis and to illustrate the theoretical findings.","PeriodicalId":109440,"journal":{"name":"2020 IEEE International Conference on Blockchain (Blockchain)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132763019","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

Reliable Collaborative Learning with Commensurate Incentive Schemes 可靠的协作学习与相应的激励计划

2020 IEEE International Conference on Blockchain (Blockchain) Pub Date : 2020-11-01 DOI: 10.1109/Blockchain50366.2020.00072

S. Rahmadika, K. Rhee

引用次数: 8

BCVerifier: A Tool to Verify Hyperledger Fabric Ledgers BCVerifier:验证超级账本Fabric账本的工具

2020 IEEE International Conference on Blockchain (Blockchain) Pub Date : 2020-11-01 DOI: 10.1109/Blockchain50366.2020.00043

Taku Shimosawa, Tatsuya Sato, Satoshi Oshima

引用次数: 1

A Secure Personal-Data Trading System Based on Blockchain, Trust, and Reputation 基于bb0、信任和信誉的安全个人数据交易系统

2020 IEEE International Conference on Blockchain (Blockchain) Pub Date : 2020-11-01 DOI: 10.1109/Blockchain50366.2020.00055

G. Camilo, G. Rebello, Lucas Airam C. de Souza, O. Duarte

引用次数: 14

Blockchain Based e-Invoicing Platform for Global Trade 基于区块链的全球贸易电子发票平台

2020 IEEE International Conference on Blockchain (Blockchain) Pub Date : 2020-11-01 DOI: 10.1109/Blockchain50366.2020.00056

Krishnasuri Narayanam, Seep Goel, Abhishek Singh, Y. Shrinivasan, Shreya Chakraborty, P. Selvam, Vishnu Choudhary, Mudit Verma

{"title":"Blockchain Based e-Invoicing Platform for Global Trade","authors":"Krishnasuri Narayanam, Seep Goel, Abhishek Singh, Y. Shrinivasan, Shreya Chakraborty, P. Selvam, Vishnu Choudhary, Mudit Verma","doi":"10.1109/Blockchain50366.2020.00056","DOIUrl":"https://doi.org/10.1109/Blockchain50366.2020.00056","url":null,"abstract":"Transportation of shipper’s goods across country borders by loading into containers is known as global container shipping, and this is part and parcel of international or global trade. Multiple carriers, third and fourth party logistics companies are typically involved in a global container shipping journey. These organizations charge base service fees, unplanned, and value-added service fees through freight invoices based on pre-agreed contract rates with the shippers. The existence of multiple en route handoffs of the goods between the different carrier organizations involved in the shipment of the goods increases the complexity of the invoice generation process. Any discrepancy in invoices leads to disputes between the shippers and carriers that may take many months and person-hours to reconcile. This paper presents a blockchain-based e-invoice generation system for the goods carriers where one or more goods carriers are involved in the shipper’s goods movement from origin location in one country to a destination location in another country. The generation of an invoice for a carrier primarily uses real-time shipment tracking information and pre-agreed service contract rates between the shipper and the carrier. Our system enhances e-invoicing process efficiency and lower costs for the shippers and carriers participating in global trade. The primary motivations for the organizations to adopt blockchain-based e-invoicing systems are to reduce the number of disputes on invoices, reduce dispute resolution time, and provide real-time auditing.","PeriodicalId":109440,"journal":{"name":"2020 IEEE International Conference on Blockchain (Blockchain)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124540281","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: 7

A distributed biometric authentication scheme based on blockchain 一种基于区块链的分布式生物识别认证方案

2020 IEEE International Conference on Blockchain (Blockchain) Pub Date : 2020-11-01 DOI: 10.1109/Blockchain50366.2020.00068

Foteini Toutara, G. Spathoulas

引用次数: 4

Implicit Authentication in Neural Key Exchange Based on the Randomization of the Public Blockchain 基于公共密钥随机化的神经密钥交换隐式认证[j]

2020 IEEE International Conference on Blockchain (Blockchain) Pub Date : 2020-11-01 DOI: 10.1109/Blockchain50366.2020.00079

Si-Wan Noh, K. Rhee

引用次数: 3

Fair Work Distribution on Permissioned Blockchains: a Mobile Window Based Approach 许可区块链上的公平工作分配:基于移动窗口的方法

2020 IEEE International Conference on Blockchain (Blockchain) Pub Date : 2020-11-01 DOI: 10.1109/Blockchain50366.2020.00063

I. Malakhov, A. Marin, S. Rossi, D. Smuseva

{"title":"Fair Work Distribution on Permissioned Blockchains: a Mobile Window Based Approach","authors":"I. Malakhov, A. Marin, S. Rossi, D. Smuseva","doi":"10.1109/Blockchain50366.2020.00063","DOIUrl":"https://doi.org/10.1109/Blockchain50366.2020.00063","url":null,"abstract":"In permissioned blockchains, a set of identifiable miners are in charge of consolidating the new blocks. The agreement protocol is usually based on a consensus mechanism inspired by a voting Byzantine Fault Tolerance (BFT) mechanism rather than the well-known proof-of-work (PoW). However, PoW provides some benefits with respect to BFT, i.e., it allows the final user to quantify the effort required to change a consolidated transaction without the need of trusting the consortium of miners.In this paper, we address some of the problems that arise from the application of PoW in permissioned blockchains. In fact, in standard PoW, it may be easy for one miner to temporary reach 50% of the total hash power and since mining rewards are usually not expected, the problem of balancing the efforts of the miner becomes crucial.We propose a simple solution based on a sliding window algorithm to address these problems and analyse its effectiveness in terms of security. Additionally, we propose a quantitative model whose solution allows us to assess its capacity of balancing the hash power provided by heterogeneous miners.","PeriodicalId":109440,"journal":{"name":"2020 IEEE International Conference on Blockchain (Blockchain)","volume":"496 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128333665","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: 3

Loyalty Program using Blockchain 使用区块链的忠诚度计划

2020 IEEE International Conference on Blockchain (Blockchain) Pub Date : 2020-11-01 DOI: 10.1109/Blockchain50366.2020.00074

Osman Sönmeztürk, Tolga Ayav, Y. M. Erten

{"title":"Loyalty Program using Blockchain","authors":"Osman Sönmeztürk, Tolga Ayav, Y. M. Erten","doi":"10.1109/Blockchain50366.2020.00074","DOIUrl":"https://doi.org/10.1109/Blockchain50366.2020.00074","url":null,"abstract":"The traditional loyalty systems usually offer people benefits in a specific sector. The users usually need to stay within the loyalty system for a long time and accumulate points in order to win rewards which may not be very interesting for them most of the time. Additionally, users usually do not prefer to share their personal information to join these loyalty systems due to privacy concerns. It has, therefore, been observed that the number of customers in the loyalty systems is decreasing day by day. To reduce these drawbacks a loyalty program which complies with ERC20 standards was proposed in this study using tokens based on the Ethereum blockchain. Using this new generation loyalty system, users can convert their earned tokens to Ether in the market and they can receive services or products with the accumulated tokens according to their interests from any supplier that has been contracted by the manufacturer. Additionally, users in the designed system do not need to carry many different cards, it is adequate to have only one Ethereum wallet. Furthermore, users do not need to share any personal data to join the loyalty system. Suppliers can also request Ether from the manufacturer for the tokens they have accumulated from the members of the loyalty system. The proposed loyalty system has been implemented and presented in this study.","PeriodicalId":109440,"journal":{"name":"2020 IEEE International Conference on Blockchain (Blockchain)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133962942","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: 8

DFedForest: Decentralized Federated Forest DFedForest:分散联邦森林

2020 IEEE International Conference on Blockchain (Blockchain) Pub Date : 2020-11-01 DOI: 10.1109/Blockchain50366.2020.00019

Lucas Airam C. de Souza, G. Rebello, G. Camilo, Lucas C. B. Guimarães, O. Duarte

引用次数: 27