Blockchain HIE Overview: A Framework for Healthcare Interoperability

Data stored in a blockchain is immutable and available for access by separate parties. The excellent potential residing in this technology includes security, verification, and expanded data management for healthcare records, making it ideal for a new interoperability standard. As it stands today, public blockchain technology (i.e. Bitcoin) is a secure P2P (peer-to-peer) ledger system that uses public key encryption to protect information. Once entries are created on the chain, they are immutable, making blockchain ideal for storing permanent records. Because of this, authorized members of a network are confident of their data's authenticity within the encrypted chains. The shared ledger structure provides an immutable audit trail for every transaction. In healthcare, organizations can create authenticated records and entries without needing a central authority. Each link in the chain verifies the next, traceable back to what’s called the Genesis block, a.k.a. the first block in the chain ever created.

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Vote Validation using Blockchain Technology: A Conceptual Use Case

European Journal of Electrical Engineering and Computer Science ◽

10.24018/ejece.2020.4.4.233 ◽

2020 ◽

Vol 4 (4) ◽

Author(s):

Frankline Makokha

Keyword(s):

Peer To Peer ◽

Use Cases ◽

Use Case ◽

Central Authority ◽

Distributed Consensus ◽

Blockchain Technology ◽

Smart Contract ◽

Computing Technologies ◽

Main Component ◽

Clear Description

Blockchain Technology is one of the computing technologies touted to likely bring about disruption in ways people conduct their transactions. By design, blockchains are decentralized, peer to peer, distributed consensus, and have anonymity property thus eliminating the need for a central Authority. Blockchain has been widely used in crypto currencies, with other uses lip frogging at slower paces. This paper explores the various uses cases that have been advanced for blockchain highlighting the shortcomings of the listed cases. The paper expounds more on usage of blockchain in electoral processes, analyzing existing voting use cases and identifying the shortcomings of the listed blockchain voting use cases. A more elaborate voting use case is conceptualized with clear description on how to generate Digital Votes, linked to a NONCE and previous Digital Votes. The process of vote validation is explained with the main component of the blockchain voting being highlighted as the Smart Contract.

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Mining Process in Cryptocurrency Using Blockchain Technology: Bitcoin as a Case Study

Journal of Computational and Theoretical Nanoscience ◽

10.1166/jctn.2019.8515 ◽

2019 ◽

Vol 16 (10) ◽

pp. 4293-4298

Author(s):

Ahmad Abdullah Aljabr ◽

Avinash Sharma ◽

Kailash Kumar

Keyword(s):

Distributed System ◽

Peer To Peer ◽

Central Authority ◽

Digital Currency ◽

Blockchain Technology ◽

The World ◽

Reward Mechanism

A new digital currency in the form virtual cash, known as Bitcoin was acquainted with the world by Satoshi in 2009. Bitcoin is the most notable computerized money. It is based on peer-to-peer distributed system with no central authority controlling it. It is based on the technique known as Blockchain, a kind of peer-to-peer ledger system containing the record of all transactions. All set of transactions are logged in the blocks. The new transactions generated by the users are broadcasted using signed blocks to verify over the Bitcoin network. The transaction is verified by mining process and added to the Blockchain. In order to add the transaction into the block, the miner solves the cryptographic puzzle. The miners are rewarded for their work. This paper is focused on mining strategy and reward mechanism of the Bitcoin. The challenges in mining process are identified and probable solutions are presented.

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Cryptanalysis on an Improved Version of ElGamal-Like Public-Key Encryption Scheme for Encrypting Large Messages

Informatica ◽

10.15388/informatica.2012.374 ◽

2012 ◽

Vol 23 (4) ◽

pp. 537-562 ◽

Cited By ~ 5

Author(s):

Ting-Yi Chang ◽

Min-Shiang Hwang ◽

Wei-Pang Yang

Keyword(s):

Public Key ◽

Encryption Scheme ◽

Public Key Encryption

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Disavowable Public Key Encryption with Non-Interactive Opening

IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences ◽

10.1587/transfun.e98.a.2446 ◽

2015 ◽

Vol E98.A (12) ◽

pp. 2446-2455 ◽

Cited By ~ 1

Author(s):

Ai ISHIDA ◽

Keita EMURA ◽

Goichiro HANAOKA ◽

Yusuke SAKAI ◽

Keisuke TANAKA

Keyword(s):

Public Key ◽

Public Key Encryption

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Design and Analysis of a Provable Secure Multi-Recipient Public Key Encryption Scheme

Journal of Software ◽

10.3724/sp.j.1001.2009.03552 ◽

2009 ◽

Vol 20 (10) ◽

pp. 2907-2914 ◽

Cited By ~ 8

Author(s):

Liao-Jun PANG ◽

Hui-Xian LI ◽

Li-Cheng JIAO ◽

Yu-Min WANG

Keyword(s):

Public Key ◽

Encryption Scheme ◽

Public Key Encryption

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Applications of blockchain in healthcare (Preprint)

10.2196/preprints.17777 ◽

2020 ◽

Author(s):

Pranav C

Keyword(s):

Decision Making ◽

Large Scale ◽

Review Paper ◽

New Technology ◽

Personal Identification ◽

Healthcare Industry ◽

Healthcare Organizations ◽

Paper Briefly ◽

Blockchain Technology ◽

Audit Trails

UNSTRUCTURED The word blockchain elicits thoughts of cryptocurrency much of the time, which does disservice to this disruptive new technology. Agreed, bitcoin launched in 2011 was the first large scale implementation of blockchain technology. Also, Bitcoin’s success has triggered the establishment of nearly 1000 new cryptocurrencies. This again lead to the delusion that the only application of blockchain technology is for the creation of cryptocurrency. However, the blockchain technology is capable of a lot more than just cryptocurrency creation and may support such things as transactions that require personal identification, peer review, elections and other types of democratic decision-making and audit trails. Blockchain exists with real world implementations beyond cryptocurrencies and these solutions deliver powerful benefits to healthcare organizations, bankers, retailers and consumers among others. One of the areas where blockchain technology can be used effectively is healthcare industry. Proper application of this technology in healthcare will not only save billions of money but also will contribute to the growth in research. This review paper briefly defines blockchain and deals in detail the applications of blockchain in various areas particularly in healthcare industry.

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Public-Key Encryption

10.1093/oso/9780198788003.003.0005 ◽

2017 ◽

Author(s):

Keith M. Martin

Keyword(s):

Elliptic Curve ◽

Public Key Cryptography ◽

Public Key ◽

Public Key Encryption ◽

Hybrid Encryption ◽

Public Key Cryptosystems ◽

Encryption And Decryption ◽

Encryption Schemes ◽

Hard Problems ◽

Set Up

In this chapter, we introduce public-key encryption. We first consider the motivation behind the concept of public-key cryptography and introduce the hard problems on which popular public-key encryption schemes are based. We then discuss two of the best-known public-key cryptosystems, RSA and ElGamal. For each of these public-key cryptosystems, we discuss how to set up key pairs and perform basic encryption and decryption. We also identify the basis for security for each of these cryptosystems. We then compare RSA, ElGamal, and elliptic-curve variants of ElGamal from the perspectives of performance and security. Finally, we look at how public-key encryption is used in practice, focusing on the popular use of hybrid encryption.

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