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Cryptography
Special Issues
Advances of Blockchain Technology and Its Applications
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Advances of Blockchain Technology and Its Applications

A special issue of Cryptography (ISSN 2410-387X).

Deadline for manuscript submissions: closed (30 November 2018) | Viewed by 60961

Special Issue Editors

Prof. Dr. Kouichi Sakurai

E-Mail Website
Guest Editor
Department of Informatics, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
Interests: information security; cryptography, multimedia security; mobile technology; web-application technology; copyright protection
Prof. Dr. Yong Yu

E-Mail
Co-Guest Editor
School of Computer Science, Shaanxi Normal University, Xi'an 710062, China
Interests: blockchain and its application; cryptography and its applications; secure cloud computing
Dr. Yannan Li

E-Mail Website
Co-Guest Editor
School of Computing and Information Technology, University of Wollongong, Wollongong, NSW 2522, Australia
Interests: cryptography; secure cloud storage; cryptocurrencies

Special Issue Information

Dear Colleagues,

Blockchain is a distributed database maintained by all participants in a system and secured by public key cryptography. Blockchain technology is one of the most disruptive technologies that impacts research, as well as industries. The advances of blockchain technology have contributed a great deal to change the way in traditional industries, ranging from finance to trade, manufacturing, and more. However, due to the nascent nature of blockchain technology, it is not widely applied to real-life implementations. The aim of this Special Issue is to publish high-quality papers with state-of-the-art solutions regarding blockchain technology and its applications to promote the adoption of this technology in more areas. Potential topics of this Special Issue include, but are not limited to, the following:

  • Cryptocurrency
  • Smart contract
  • Ethereum
  • Blockchain security
  • Blockchain standard
  • Blockchain adoption
  • Opportunity and threats in blockchain
  • Blockchain and IoT
  • Blockchain and healthcare
  • Blockchain and trade finance
  • Blockchain and government
  • Blockchain and energy

Prof. Kouichi Sakurai
Prof. Yong Yu
Dr. Yannan Li
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Cryptography is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Blockchain
  • Cryptocurrency
  • Ethereum
  • Smart Contract

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (3 papers)

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22 pages, 5176 KiB  
Article
Automating Privacy Compliance Using Policy Integrated Blockchain
by Karuna Pande Joshi and Agniva Banerjee
Cryptography 2019, 3(1), 7; https://doi.org/10.3390/cryptography3010007 - 5 Feb 2019
Cited by 7 | Viewed by 9556
Abstract
An essential requirement of any information management system is to protect data and resources against breach or improper modifications, while at the same time ensuring data access to legitimate users. Systems handling personal data are mandated to track its flow to comply with [...] Read more.
An essential requirement of any information management system is to protect data and resources against breach or improper modifications, while at the same time ensuring data access to legitimate users. Systems handling personal data are mandated to track its flow to comply with data protection regulations. We have built a novel framework that integrates semantically rich data privacy knowledge graph with Hyperledger Fabric blockchain technology, to develop an automated access-control and audit mechanism that enforces users’ data privacy policies while sharing their data with third parties. Our blockchain based data-sharing solution addresses two of the most critical challenges: transaction verification and permissioned data obfuscation. Our solution ensures accountability for data sharing in the cloud by incorporating a secure and efficient system for End-to-End provenance. In this paper, we describe this framework along with the comprehensive semantically rich knowledge graph that we have developed to capture rules embedded in data privacy policy documents. Our framework can be used by organizations to automate compliance of their Cloud datasets. Full article
(This article belongs to the Special Issue Advances of Blockchain Technology and Its Applications)
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16 pages, 883 KiB  
Article
Applications of Blockchain Technology in Medicine and Healthcare: Challenges and Future Perspectives
by Asad Ali Siyal, Aisha Zahid Junejo, Muhammad Zawish, Kainat Ahmed, Aiman Khalil and Georgia Soursou
Cryptography 2019, 3(1), 3; https://doi.org/10.3390/cryptography3010003 - 2 Jan 2019
Cited by 349 | Viewed by 39508
Abstract
Blockchain technology has gained considerable attention, with an escalating interest in a plethora of numerous applications, ranging from data management, financial services, cyber security, IoT, and food science to healthcare industry and brain research. There has been a remarkable interest witnessed in utilizing [...] Read more.
Blockchain technology has gained considerable attention, with an escalating interest in a plethora of numerous applications, ranging from data management, financial services, cyber security, IoT, and food science to healthcare industry and brain research. There has been a remarkable interest witnessed in utilizing applications of blockchain for the delivery of safe and secure healthcare data management. Also, blockchain is reforming the traditional healthcare practices to a more reliable means, in terms of effective diagnosis and treatment through safe and secure data sharing. In the future, blockchain could be a technology that may potentially help in personalized, authentic, and secure healthcare by merging the entire real-time clinical data of a patient’s health and presenting it in an up-to-date secure healthcare setup. In this paper, we review both the existing and latest developments in the field of healthcare by implementing blockchain as a model. We also discuss the applications of blockchain, along with the challenges faced and future perspectives. Full article
(This article belongs to the Special Issue Advances of Blockchain Technology and Its Applications)
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18 pages, 366 KiB  
Article
Provably Secure Covert Communication on Blockchain
by Juha Partala
Cryptography 2018, 2(3), 18; https://doi.org/10.3390/cryptography2030018 - 20 Aug 2018
Cited by 99 | Viewed by 10689
Abstract
Blockchain is a public open ledger that provides data integrity in a distributed manner. It is the underlying technology of cryptocurrencies and an increasing number of related applications, such as smart contracts. The open nature of blockchain together with strong integrity guarantees on [...] Read more.
Blockchain is a public open ledger that provides data integrity in a distributed manner. It is the underlying technology of cryptocurrencies and an increasing number of related applications, such as smart contracts. The open nature of blockchain together with strong integrity guarantees on the stored data makes it a compelling platform for covert communication. In this paper, we suggest a method of securely embedding covert messages into a blockchain. We formulate a simplified ideal blockchain model based on existing implementations and devise a protocol that enables two parties to covertly communicate through the blockchain following that model. We also formulate a rigorous definition for the security and covertness of such a protocol based on computational indistinguishability. Finally, we show that our method satisfies this definition in the random oracle model for the underlying cryptographic hash function. Full article
(This article belongs to the Special Issue Advances of Blockchain Technology and Its Applications)
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