A Key Recovery System Based on Password-protected Secret Sharing in a Permissioned Blockchain

Ra, Gyeong-Jin; Roh, Chang-Hyun; Lee, Im-Yeong

doi:10.32604/cmc.2020.011293

Cited by 14 publications

(9 citation statements)

References 7 publications

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“…e transaction details of a block are contained in the header in the hexagonal value known as Merkle Root. Blockchain utilizes the hash function to perform cryptography [17].…”

Section: Enhanced Securitymentioning

confidence: 99%

Application of Blockchain and Internet of Things in Healthcare and Medical Sector: Applications, Challenges, and Future Perspectives

Ratta

Kaur

Sharma

et al. 2021

Journal of Food Quality

220

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Internet of Things (IoT) is one of the recent innovations in Information Technology, which intends to interconnect the physical and digital worlds. It introduces a vision of smartness by enabling communication between objects and humans through the Internet. IoT has diverse applications in almost all sectors like Smart Health, Smart Transportation, and Smart Cities, etc. In healthcare applications, IoT eases communication between doctors and patients as the latter can be diagnosed remotely in emergency scenarios through body sensor networks and wearable sensors. However, using IoT in healthcare systems can lead to violation of the privacy of patients. Thus, security should be taken into consideration. Blockchain is one of the trending research topics nowadays and can be applied to the majority of IoT scenarios. Few major reasons for using the Blockchain in healthcare systems are its prominent features, i.e., Decentralization, Immutability, Security and Privacy, and Transparency. This paper’s main objective was to enhance the functionality of healthcare systems using emerging and innovative computer technologies like IoT and Blockchain. So, initially, a brief introduction to the basic concepts of IoT and Blockchain is provided. After this, the applicability of IoT and Blockchain in the medical sector is explored in three major areas—drug traceability, remote patient-monitoring, and medical record management. At last, the challenges of deploying IoT and Blockchain in healthcare systems are discussed.

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“…e transaction details of a block are contained in the header in the hexagonal value known as Merkle Root. Blockchain utilizes the hash function to perform cryptography [17].…”

Section: Enhanced Securitymentioning

confidence: 99%

Application of Blockchain and Internet of Things in Healthcare and Medical Sector: Applications, Challenges, and Future Perspectives

Ratta

Kaur

Sharma

et al. 2021

Journal of Food Quality

220

View full text Add to dashboard Cite

show abstract

“…In a private blockchain, only selected participants who have permission can access the blockchain. 61 Moreover, the network is maintained by a central authority, and hence, it not decentralized in nature. 3.…”

Section: F I G U R E 2 Propagation Of a Transaction Using Blockchainmentioning

confidence: 99%

Framework for determining the suitability of blockchain: Criteria and issues to consider

Hassija

Zeadally

Jain

et al. 2021

Trans Emerging Tel Tech

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Various distributed ledger technologies (DLTs), such as blockchain, have evolved significantly in recent years. These technologies provide a robust and effective solution for providing confidentiality, integrity, nonrepudiation, authentication, and transparency. While blockchain has many advantages, it has various limitations as well, such as complexity, low throughput, privacy, and so on. We discuss the issues that must be considered when deciding whether to use these technologies in a given case or not. We describe the operation of blockchain, application areas where blockchain is suitable, and those where it is not. We also discuss the applicability of other emerging DLTs, apart from blockchain technology, such as Hashgraph, Zcash, Nano coin, and IOTA. INTRODUCTIONAs the name suggests, a blockchain can be considered as a database where digital information (ie, "Blocks") is stored in a distributed network as a chain of blocks. Blockchain falls in the class of distributed ledger technologies (DLT) that allow a database to be used and maintained in a distributed manner. Blockchain provides a shared ledger of transactions 1 that can be read, verified and stored in the form of blocks, forming a chain-like structure. Depending on the size of the transaction, a block may store up to a few thousand transactions (eg, a single block in the bitcoin blockchain can store about 1 MB of data). The security and anonymity provided by blockchain relies on the use of public key based digital signatures, hash functions, and the distributed nature of the database. Participants in a blockchain are connected through a peer-to-peer (P2P) network and are independent of each other. 2 This architecture allows the sharing of resources, 3 avoids single point of failure, and reduces the likelihood of data tampering because the data is not stored or managed by specific nodes. [4][5][6] However, there are many challenges 7 that need to be resolved in the case of distributed networks. These challenges include accountability, confidentiality, integrity, nonrepudiation, and authentication, due to the absence of any central authority. Another major issue is trust because there is no central authority that can resolve any ambiguities or disagreements that may occur. Blockchain resolves all these issues. Confidentiality and authentication are ensured using two-way encryption, that is, by encrypting the data first by the sender's private key and then by the receiver's public key. To decrypt it, first the receiver's private key is used and then the sender's public key. Consequently, data remains confidential, integrity is achieved and because the data can be obtained using sender's public key, it acts as a digital signature that authenticates the data and eliminates the possibility of nonrepudiation. Trust is obtained by introducing a consensus Trans Emerging Tel Tech.

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“…Abrading and termination pay might be contemplated as dual different practices can directly expand the cloud systems' user-friendliness and flexibility. In addition, some more block-chain and cloud related work can be read and referred to the references [20,[31][32][33][34][35][36][37][38][39]43,44]. The CPABE practice leads to several key problems when installed at cloud consumer's information interchange policy construction.…”

Section: Related Workmentioning

confidence: 99%

“…Block chain based QKD uses numerous internetwork communication links, which are a combination of secure quantum link and a general user info link [19,24,[36][37][38][39]. The source and destination together get a randomized pair of values on any place of G-bilinear cyclical group by adding cubits which are generated via different polarizers.…”

Section: Chaotic Key Making With Bqkdmentioning

confidence: 99%

“…To observe and access the sick person's personal data or clinical medical reports/records we use block chain related approaches with ledger feature. Block chain provides additional advantages like confidentiality, uprightness, and authentication along with privacy, ease of real time medical and clinical data accessing [18] and other user application oriented data, and administration [36][37][38][39]. Consequently, the key goal of the present contribution is to facilitate strict data privacy and security framework for cloud users' data by combining the block chain technique with quantum base ciphered text attribute encryption technique for additional security and to avoid man in the middle attacks [40][41][42].…”

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confidence: 99%

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A Novel Blockchain and Bi-Linear Polynomial-Based QCP-ABE Framework for Privacy and Security over the Complex Cloud Data

Singamaneni

Ramana²,

Singh

et al. 2021

Sensors

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As a result of the limited resources available in IoT local devices, the large scale cloud consumer’s data that are produced by IoT related machines are contracted out to the cloud. Cloud computing is unreliable, using it can compromise user privacy, and data may be leaked. Because cloud-data and grid infrastructure are both growing exponentially, there is an urgent need to explore computational sources and cloud large-data protection. Numerous cloud service categories are assimilated into numerous fields, such as defense systems and pharmaceutical databases, to compute information space and allocation of resources. Attribute Based Encryption (ABE) is a sophisticated approach which can permit employees to specify a higher level of security for data stored in cloud storage facilities. Numerous obsolete ABE techniques are practical when applied to small data sets to generate cryptograms with restricted computational properties; their properties are used to generate the key, encrypt it, and decrypt it. To address the current concerns, a dynamic non-linear polynomial chaotic quantum hash technique on top of secure block chain model can be used for enhancing cloud data security while maintaining user privacy. In the proposed method, customer attributes are guaranteed by using a dynamic non- polynomial chaotic map function for the key initialization, encryption, and decryption. In the proposed model, both organized and unorganized massive clinical data are considered to be inputs for reliable corroboration and encoding. Compared to existing models, the real-time simulation results demonstrate that the stated standard is more precise than 90% in terms of bit change and more precise than 95% in terms of dynamic key generation, encipherment, and decipherment time.

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A Key Recovery System Based on Password-protected Secret Sharing in a Permissioned Blockchain

Cited by 14 publications

References 7 publications

Application of Blockchain and Internet of Things in Healthcare and Medical Sector: Applications, Challenges, and Future Perspectives

Application of Blockchain and Internet of Things in Healthcare and Medical Sector: Applications, Challenges, and Future Perspectives

Framework for determining the suitability of blockchain: Criteria and issues to consider

A Novel Blockchain and Bi-Linear Polynomial-Based QCP-ABE Framework for Privacy and Security over the Complex Cloud Data

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