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This study proposes a novel solution that provides secure interoperability for blockchains, which improves the overall scalability of the whole blockchain network. In our solution, a cross-chain task will build a one-time cross-blockchain…

Networking and Internet Architecture · Computer Science 2022-01-11 Keyang Liu , Yukio Ohsawa

As a disruptive technology, blockchain, particularly its original form of bitcoin as a type of digital currency, has attracted great attentions. The innovative distributed decision making and security mechanism lay the technical foundation…

Cryptography and Security · Computer Science 2018-12-21 Ameer Tamoor Khan , Xinwei Cao , Shuai Li

Blockchain has the potential to revolutionize the way we store, use, and process data. Information on most blockchains can be viewed by every node hosting the blockchain, which means that most blockchains cannot handle private data.…

Cryptography and Security · Computer Science 2018-10-30 Sabine Bertram , Co-Pierre Georg

Blockchains are tamper evident and tamper resistant digital ledgers implemented in a distributed fashion (i.e., without a central repository) and usually without a central authority (i.e., a bank, company, or government). At their basic…

Cryptography and Security · Computer Science 2019-06-27 Dylan Yaga , Peter Mell , Nik Roby , Karen Scarfone

Blockchain is challenging the status quo of the central trust infrastructure currently prevalent in the Internet towards a design principle that is underscored by decentralization, transparency, and trusted auditability. In ideal terms,…

This paper presents a blockchain-based approach for securing spectrum sharing in multi-beam satellite systems. Satellite spectrum is a scarce resource that requires highly efficient management schemes for optimized sharing by network users.…

Cryptography and Security · Computer Science 2020-12-22 Feng Li , Kwok-Yan Lam , Min Jia , Jun Zhao , Xiuhua Li , Li Wang

Blockchain Technology has revolutionized Finance and Technology with its secure, decentralized, and trust-less methodologies of data management. In a world where asset value fluctuations are unprecedented, it has become increasingly…

Cryptography and Security · Computer Science 2025-02-11 Aaryan Sinha , Raja Muthalagu , Pranav Pawar , Alavikunhu Panthakkan , Shadi Atalla

Bitcoin is the first successful decentralized global digital cash system. Its mining process requires intense computational resources, therefore its usefulness remains a disputable topic. We aim to solve three problems with Bitcoin and…

Cryptography and Security · Computer Science 2016-08-25 Alexander Chepurnoy , Mario Larangeira , Alexander Ojiganov

This study presents a blockchain-based voting system aimed at enhancing election security, transparency, and integrity. Traditional voting methods face growing risks of tampering, making it crucial to explore innovative solutions. Our…

Cryptography and Security · Computer Science 2025-02-25 Suniti Chouhan , Gajanand Sharma

This paper highlights the necessity to use modern blockchain technology in traditional banking sector to reduce frauds and enable high-security transactions on a permanent blockchain ledger. Reviewing different channels through which the…

Cryptography and Security · Computer Science 2022-06-10 Rishav Kumar

Cross-institutional healthcare predictive modeling can accelerate research and facilitate quality improvement initiatives, and thus is important for national healthcare delivery priorities. For example, a model that predicts risk of…

Computers and Society · Computer Science 2018-02-07 Tsung-Ting Kuo , Lucila Ohno-Machado

Blockchain has become a popular emergent technology in many industries. It is suitable for a broad range of applications, from its base role as an immutable distributed ledger to the deployment of distributed applications. Many…

Cryptography and Security · Computer Science 2022-12-20 Inwon Kang , Aparna Gupta , Oshani Seneviratne

We construct a privacy-preserving, distributed and decentralized marketplace where parties can exchange data for tokens. In this market, buyers and sellers make transactions in a blockchain and interact with a third party, called notary,…

Cryptography and Security · Computer Science 2020-02-25 Ariel Futoransky , Carlos Sarraute , Daniel Fernandez , Matias Travizano , Ariel Waissbein

The food supply chain has a number of challenges, including a lack of transparency and disengagement among stakeholders. By providing a transparent and traceable digital ledger of transactions and movements for all supply chain actors,…

Cryptography and Security · Computer Science 2023-05-23 Narayan Subramanian , Atharva Joshi , Daksh Bagga

Blockchain is a distributed database which is cryptographically protected against malicious modifications. While promising for a wide range of applications, current blockchain platforms rely on digital signatures, which are vulnerable to…

Fake News are a contemporary phenomenon with potential devastating effects. For inquiry and auditability purposes, it is essential that the news, once classified as false, can be persisted in an immutable means so that interested parties…

Misinformation propagation in online social networks has become an increasingly challenging problem. Although many studies exist to solve the problem computationally, a permanent and robust solution is yet to be discovered. In this study,…

Social and Information Networks · Computer Science 2023-03-21 Tolga Yilmaz , Özgür Ulusoy

Blockchain technology transformed the digital sphere by providing a transparent, secure, and decentralized platform for data security across a range of industries, including cryptocurrencies and supply chain management. Blockchain's…

Cryptography and Security · Computer Science 2023-06-22 Bilash Saha , Md Mehedi Hasan , Nafisa Anjum , Sharaban Tahora , Aiasha Siddika , Hossain Shahriar

For many users, a private key based wallet serves as the primary entry point to blockchains. Commonly recommended wallet authentication methods, such as mnemonics or hardware wallets, can be cumbersome. This difficulty in user onboarding…

Cryptography and Security · Computer Science 2024-10-01 Foteini Baldimtsi , Konstantinos Kryptos Chalkias , Yan Ji , Jonas Lindstrøm , Deepak Maram , Ben Riva , Arnab Roy , Mahdi Sedaghat , Joy Wang

In recent years, blockchain technology has been recognized as a transformative innovation in the tech world, and it has quickly become the core infrastructure of digital currencies such as Bitcoin and an important tool in various…

Cryptography and Security · Computer Science 2025-01-22 Mohsen Ghorbian , Mostafa Ghobaei-Arani