scholarly journals A Cross-Border E-Commerce Approach Based on Blockchain Technology

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Zhao Hongmei
Keyword(s):  
Data Sharing ◽  
Distributed Storage ◽  
Transmission Efficiency ◽  
Computing Methods ◽  
Third Party ◽  
Identity Verification ◽  
Cross Border ◽  
Blockchain Technology ◽  
Cross Domain ◽  
Asymmetric Encryption

In the current cross-border electronic commerce (e-commerce) system, various document recording and authorization processes are cumbersome, record sharing efficiency is low, and identity verification is difficult. A method of asymmetric encryption technology combining Blockchain technology and cryptography is proposed. The advantages of asymmetric encrypted communications include high security and ease of multiparties communication collaboration, being applied to a peer-to-peer network formed by Blockchain technology, and making cross-border e-commerce record cross-domain sharing traceable, data immutable, and identity verification simplified. First of all, based on the immutable modification of Blockchain technology and asymmetric encryption technology, file synchronization contracts and authorization contracts are designed. Its distributed storage advantages ensure the privacy of users’ cross-border e-commerce information. Second, the design of the cross-domain acquisition contract can effectively verify the identity and transmission efficiency of both parties to the data sharing, so that illegal users can be safely filtered without a third-party notary institution. The simulation experiment results show that the solution proposed in this paper has obvious advantages in data antitheft, multiparty authentication, and saving system overhead compared with traditional cloud computing methods to solve the problem of sharing medical records. It provides a reference for solving the security problems in the process of data sharing by using the advantages of Blockchain’s decentralization and auditability and provides reference ideas for solving the problems of data sharing and cross-domain authentication.

scholarly journals Discussion on Payment Application in Cross-border E-Commerce Platform from the Perspective of Blockchain

2021 ◽  
Vol 235 ◽  
pp. 03020
Author(s):  
Qian Liao ◽  
Mimi Shao
Keyword(s):  
Information Leakage ◽  
Consumer Information ◽  
Third Party ◽  
Cross Border ◽  
Blockchain Technology ◽  
Distributed Ledger ◽  
Smart Contract ◽  
Cash Payment ◽  
Asymmetric Encryption ◽  
Further Development

Features like the distributed ledger, consensus mechanism, asymmetric encryption technology, smart contract and Token of blockchain can lower transaction cost, enhance trust between customers and merchants, as well as eliminate false payment and consumer information leakage, problems which are common in current payment of cross-border E-Commerce platform. Based on the analysis of existing scholars, this paper studied two payment models: digital cash payment based on blockchain technology and the application of blockchain in third-party payment platform. Then the paper discussed the mechanism of blockchain in cross-border e-commerce payment platform, and creatively proposed a blockchain cross-border e-commerce payment platform, serving as reference and guidance for further development of blockchain technology in cross-border payment.1

scholarly journals A blockchain-assisted framework for secure and reliable data sharing in distributed systems

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Yu Guo ◽  
Shenling Wang ◽  
Jianhui Huang
Keyword(s):  
Distributed Systems ◽  
Data Sharing ◽  
Keyword Search ◽  
Distributed Storage ◽  
Data Access ◽  
Third Party ◽  
Superior Performance ◽  
User Privacy ◽  
Local Index ◽  
Data Store

AbstractThe explosive growth of big data is pushing forward the paradigm of cloud-based data store today. Among other, distributed storage systems are widely adopted due to their superior performance and continuous availability. However, due to the potentially wide attacking surfaces of the public cloud, outsourcing data store inevitably raises new concerns on user privacy exposure and unauthorized data access. Besides, directly introducing a centralized third-party authority for query authorization management does not work because it still can be compromised. In this paper, we propose a blockchain-assisted framework that can support trustworthy data sharing services. In particular, data owners allow to outsource their sensitive data to distributed systems in encrypted form. By leveraging smart contracts of blockchain, a data owner can distribute secret keys for authorized users without extra round interaction to generate the permitted search tokens. Meanwhile, such blockchain-assisted framework naturally solves the trust issues of query authorization. Besides, we devise a secure local index framework to support encrypted keyword search with forward privacy and mitigate blockchain overhead. To validate our design, we implement the prototype and deploy it at Amazon Cloud. Extensive experiments demonstrate the security, efficiency, and effectiveness of the blockchain-assisted design.

Blockchain in Clinical Trials

2021 ◽  
pp. 278-292
Author(s):  
Shaveta Malik ◽  
Archana Mire ◽  
Amit Kumar Tyagi ◽  
Arathi Boyanapalli
Keyword(s):  
Clinical Trial ◽  
Clinical Trials ◽  
Clinical Research ◽  
Data Sharing ◽  
Study Protocol ◽  
Data Security ◽  
Personal Data ◽  
Third Party ◽  
Report Generation ◽  
Blockchain Technology

Clinical research comprises participation from patients. Often there are concerns of enrolment from patients. Hence, it has to face various challenges related to personal data, such as data sharing, privacy and reproducibility, etc. Patients and researchers need to track a set plan called study protocol. This protocol spans through various stages such as registration, collection and analysis of data, report generation, and finally, results in publication of findings. The Blockchain technology has emerged as one of the possible solutions to these challenges. It has a potential to address all the problem associated with clinical research. It provides the comfort for building transparent, secure services relying on trusted third party. This technology enables one to share the control of the data, security, and the parameters with a single patient or a group of patients or any other stakeholders of clinical trial. This chapter addresses the use of blockchain in execution of secure and trusted clinical trials.

scholarly journals Design and Implementation of Data Sharing Traceability System Based on Blockchain Smart Contract

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Yang Kang ◽  
Qiang Li
Keyword(s):  
Data Sharing ◽  
Service Providers ◽  
Distributed Storage ◽  
Cloud Service ◽  
Fair Exchange ◽  
Traceability System ◽  
Blockchain Technology ◽  
Multigroup Data ◽  
Feasible Solutions ◽  
Internet Of Things Technology

“Traceability” is an important method often used in modern supply management. The traceability system is a system based on the Internet of Things technology. In this process, users will share resources through cloud service providers, so how to ensure data security is also one of the issues we consider. Blockchain technology is an emerging technology in the field of information technology. Its decentralized nature, distributed storage, and difficult data modification provide us with fair exchange and sharing of data. Feasible solutions: in this article, we have studied the key issues of fair exchange and safe sharing of data based on blockchain and designed a multigroup data sharing scheme based on alliance chain. To solve the various existing traceability systems problem, this paper designs a new traceability system based on blockchain technology and implements a system prototype to verify the feasibility of the system.

scholarly journals A Three-Tier Authentication Scheme for Kerberized Hadoop Environment

2021 ◽  
Vol 21 (4) ◽  
pp. 119-136
Author(s):  
M. Hena ◽  
N. Jeyanthi
Keyword(s):  
Time Synchronization ◽  
Distributed Storage ◽  
Single Point ◽  
Third Party ◽  
Security Requirements ◽  
Security Level ◽  
Byzantine Fault Tolerance ◽  
Computational Overhead ◽  
Blockchain Technology ◽  
Dictionary Attacks

Abstract Apache Hadoop answers the quest of handling Bigdata for most organizations. It offers distributed storage and data analysis via Hadoop Distributed File System (HDFS) and Map-Reduce frameworks. Hadoop depends on third-party security providers like Kerberos for its security requirements. Kerberos by itself comes with many security loopholes like Single point of Failure (SoF), Dictionary Attacks, Time Synchronization and Insider Attacks. This paper suggests a solution that aims to eradicate the security issues in the Hadoop Cluster with a focus on Dictionary Attacks and Single Point of Failure. The scheme roots on Secure Remote Password Protocol, Blockchain Technology and Threshold Cryptography. Practical Byzantine Fault Tolerance mechanism (PBFT) is deployed at the blockchain as the consensus mechanism. The proposed scheme outperforms many of the existing schemes in terms of computational overhead and storage requirements without compromising the security level offered by the system. Riverbed Modeller (AE) Simulation results strengthen the aforesaid claims.

scholarly journals A Threshold Proxy Re-Encryption Scheme for Secure IoT Data Sharing Based on Blockchain

Electronics ◽  
2021 ◽  
Vol 10 (19) ◽  
pp. 2359
Author(s):  
Yingwen Chen ◽  
Bowen Hu ◽  
Hujie Yu ◽  
Zhimin Duan ◽  
Junxin Huang
Keyword(s):  
Data Sharing ◽  
Service Providers ◽  
Personal Information ◽  
Data Access ◽  
Third Party ◽  
Consensus Algorithm ◽  
Personal Privacy ◽  
Encrypted Data ◽  
Blockchain Technology ◽  
Encrypt Data

The IoT devices deployed in various application scenarios will generate massive data with immeasurable value every day. These data often contain the user’s personal privacy information, so there is an imperative need to guarantee the reliability and security of IoT data sharing. We proposed a new encrypted data storing and sharing architecture by combining proxy re-encryption with blockchain technology. The consensus mechanism based on threshold proxy re-encryption eliminates dependence on the third-party central service providers. Multiple consensus nodes in the blockchain network act as proxy service nodes to re-encrypt data and combine converted ciphertext, and personal information will not be disclosed in the whole procedure. That eliminates the restrictions of using decentralized network to store and distribute private encrypted data safely. We implemented a lot of simulated experiments to evaluate the performance of the proposed framework. The results show that the proposed architecture can meet the extensive data access demands and increase a tolerable time latency. Our scheme is one of the essays to utilize the threshold proxy re-encryption and blockchain consensus algorithm to support IoT data sharing.

scholarly journals Possibilities at the Intersection of AI and Blockchain Technology

2019 ◽  
Vol 9 (1S) ◽  
pp. 135-144
Keyword(s):  
Artificial Intelligence ◽  
Decision Making ◽  
Data Sharing ◽  
Action Plan ◽  
Third Party ◽  
Human Beings ◽  
Intelligent Decision Making ◽  
Blockchain Technology ◽  
Intelligent Decision ◽  
The Given

Artificial intelligence and Blockchain are the most trending technologies these days, where artificial intelligence offers intelligent decision-making capabilities to machines which is similar to human beings and blockchain technology allows a decentralised pathway for encrypted data sharing between ledgers in a secured manner. Integration of both technologies forms a decentralised AI which enables the process of decision making on digitally encrypted platform for secure data sharing without involvement of any Third Party. This paper gives a detail on the possibilities of intersection of AI and Blockchain. The paper also contains the issues and problems related to the respective integration. An Algorithm is proposed in two parts, based on one of the given issues, which predicts the action plan of AI for destructing malware blocks in blockchain

scholarly journals A Blockchain-Assisted Framework for Secure and Reliable Data Sharing in Distributed Systems

2020 ◽  
Author(s):  
Yu Guo ◽  
Shenling Wang ◽  
Jianhui Huang
Keyword(s):  
Distributed Systems ◽  
Data Sharing ◽  
Keyword Search ◽  
Distributed Storage ◽  
Data Access ◽  
Third Party ◽  
Superior Performance ◽  
User Privacy ◽  
Local Index ◽  
Data Store

Abstract The explosive growth of big data is pushing forward the paradigm of cloud-based data store today. Among other, distributed storage systems are widely adopted due to their superior performance and continuous availability. However, due to the potentially wide attacking surfaces of the public cloud, outsourcing data store inevitably raises new concerns on user privacy exposure and unauthorized data access. Besides, directly introducing a centralized third-party authority for query authorization management is not work because it still can be compromised. In this paper, we propose a blockchain-assisted framework that can support trustworthy data sharing services. In particular, data owners allow to outsource their sensitive data to distributed systems in encrypted form. By leveraging smart contracts of blockchain, a data owner can distribute secret keys for authorized users without extra round interaction to generate the permitted search tokens. Meanwhile, such blockchain-assisted framework naturally solves the trust issues of query authorization. Besides, we devise a secure local index framework to support encrypted keyword search with forward-privacy and mitigate blockchain overhead. To validate our design, we implement the prototype and deploy it at Amazon Cloud. Extensive experiments demonstrate the security, efficiency, and effectiveness of the design.

The Potential Of Blockchain Technology To Change International Mobile Roaming Business Model

2019 ◽  
Vol 5 (1) ◽  
pp. 15-22
Author(s):  
Ardian Thresnantia Atmaja
Keyword(s):  
Business Model ◽  
Current Situation ◽  
Business Value ◽  
Third Party ◽  
Fundamental Aspect ◽  
Clearing House ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Target Architecture ◽  
Architecture Development

The key objectives of this paper is to propose a design implementation of blockchain based on smart contract which have potential to change international mobile roaming business model by eliminating third-party data clearing house (DCH). The analysis method used comparative analysis between current situation and target architecture of international mobile roaming business that commonly used by TOGAF Architecture Development Method. The purposed design of implementation has validated the business value by using Total Cost of Ownership (TCO) calculation. This paper applies the TOGAF approach in order to address architecture gap to evaluate by the enhancement capability that required from these three fundamental aspect which are Business, Technology and Information. With the blockchain smart contract solution able to eliminate the intermediaries Data Clearing House system, which impacted to the business model of international mobile roaming with no more intermediaries fee for call data record (CDR) processing and open up for online billing and settlement among parties. In conclusion the business value of blockchain implementation in the international mobile roaming has been measured using TCO comparison between current situation and target architecture that impacted cost reduction of operational platform is 19%. With this information and understanding the blockchain technology has significant benefit in the international mobile roaming business.

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