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In this paper, we propose a trust-centric privacy-preserving blockchain for dynamic spectrum access in IoT networks. To be specific, we propose a trust evaluation mechanism to evaluate the trustworthiness of sensing nodes and design a…

Cryptography and Security · Computer Science 2021-06-29 Jingwei Ye , Xin Kang , Ying-Chang Liang , Sumei Sun

Public blockchains provide a decentralized method for storing transaction data and have many applications in different sectors. In order for users to track transactions, a simple method is to let them keep a local copy of the entire public…

Cryptography and Security · Computer Science 2018-11-13 Lei Xu , Lin Chen , Zhimin Gao , Shouhuai Xu , Weidong Shi

This research proposes a decentralized and cryptographically secure framework to address the most acute issues of privacy, data security, and protection in the ecosystem of medical insurance claim processing. The scope of this study focuses…

Cryptography and Security · Computer Science 2025-11-12 Diya Mamoria , Harshit Jain , Aswani Kumar Cherukuri

Blockchain technology streamlines multi-party collaborations in decentralized settings, especially when trust is limited or difficult to establish. While public blockchains enhance transparency and reliability by replicating data across all…

The integration of blockchain technology in Internet of Things (IoT) environments is a revolutionary step towards ensuring robust security and enhanced privacy. This paper delves into the unique challenges and solutions associated with…

Cryptography and Security · Computer Science 2024-03-05 Peyman Khordadpour , Saeed Ahmadi

This paper proposes a decentralized, blockchain-based system for the publication of Common Vulnerabilities and Exposures (CVEs), aiming to mitigate the limitations of the current centralized model primarily overseen by MITRE. The proposed…

Cryptography and Security · Computer Science 2025-05-02 Novruz Amirov , Kemal Bicakci

With the advent of numerous online content providers, utilities and applications, each with their own specific version of privacy policies and its associated overhead, it is becoming increasingly difficult for concerned users to manage and…

Cryptography and Security · Computer Science 2017-10-17 Agniva Banerjee , Karuna Pande Joshi

The integration of cloud computing and Internet of Things (IoT) is quickly becoming the key enabler for the digital transformation of the healthcare industry by offering comprehensive improvements in patient engagements, productivity and…

Cryptography and Security · Computer Science 2017-02-14 Lei Yang , Qingji Zheng , Xinxin Fan

Decentralization for data storage is a challenging problem for blockchain-based solutions as the blocksize plays the key role for scalability. In addition, specific requirements of multimedia data calls for various changes in the blockchain…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-03-15 Suayb S. Arslan , Turguy Goker

Internet of Things (IoT) is now evolving into a loosely coupled, decentralized system of cooperating smart objects, where high- speed data processing, analytics and shorter response times are becoming more necessary than ever. Such…

Cryptography and Security · Computer Science 2018-04-09 Gokhan Sagirlar , Barbara Carminati , Elena Ferrari

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

Internet of Things (IoT) services necessitate the storage, transmission, and analysis of diverse data for inference, autonomy, and control. Blockchains, with their inherent properties of decentralization and security, offer efficient…

Cryptography and Security · Computer Science 2024-06-18 Yusen Wu , Ye Hu , Mingzhe Chen , Yelena Yesha , Mérouane Debbah

A common privacy issue in traditional machine learning is that data needs to be disclosed for the training procedures. In situations with highly sensitive data such as healthcare records, accessing this information is challenging and often…

Cryptography and Security · Computer Science 2021-03-31 Pavlos Papadopoulos , Will Abramson , Adam J. Hall , Nikolaos Pitropakis , William J. Buchanan

Recently, cybersecurity becomes more and more important due to the rapid development of Internet. However, existing methods are in reality highly sensitive to attacks and are far more vulnerable than expected, as they are lack of trustable…

Cryptography and Security · Computer Science 2018-11-28 Yu Han , Zhongru Wang , Qiang Ruan , Binxing Fang

Opening up data produced by the Internet of Things (IoT) and mobile devices for public utilization can maximize their economic value. Challenges remain in the trustworthiness of the data sources and the security of the trading process,…

Cryptography and Security · Computer Science 2025-11-25 Yue Li , Ifteher Alom , Wenhai Sun , Yang Xiao

We propose a secure computation solution for blockchain networks. The correctness of computation is verifiable even under malicious majority condition using information-theoretic Message Authentication Code (MAC), and the privacy is…

Cryptography and Security · Computer Science 2018-12-17 Derek Zhang , Alex Su , Felix Xu , Jiang Chen

Smart cities, which can monitor the real world and provide smart services in a variety of fields, have improved people's living standards as urbanization has accelerated. However, there are security and privacy concerns because smart city…

Cryptography and Security · Computer Science 2023-10-20 Jing Jia , Kenta Saito , Hiroaki Nishi

Big data has generated strong interest in various scientific and engineering domains over the last few years. Despite many advantages and applications, there are many challenges in big data to be tackled for better quality of service, e.g.,…

A decentralized online petition system enables individuals or groups to create, sign, and share petitions without a central authority. Using blockchain technology, these systems ensure the integrity and transparency of the petition process…

Cryptography and Security · Computer Science 2024-07-02 Jagdeep Kaur , Kevin Antony , Nikhil Pujar , Ankit Jha

Secure and reliable management of identities has become one of the greatest challenges facing cloud computing today, mainly due to the huge number of new cloud-based applications generated by this model, which means more user accounts,…

Cryptography and Security · Computer Science 2019-03-13 Keltoum Bendiab , Nicholas Kolokotronis , Stavros Shiaeles , Samia Boucherkha