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Trust Management (TM) systems for authentication are vital to the security of online interactions, which are ubiquitous in our everyday lives. Various systems, like the Web PKI (X.509) and PGP's Web of Trust are used to manage trust in this…

Cryptography and Security · Computer Science 2017-11-15 Nikolaos Alexopoulos , Jörg Daubert , Max Mühlhäuser , Sheikh Mahbub Habib

The Hybrid Technology Hub and many other research centers work in cross-functional teams whose workflow is not necessarily linear and where in many cases technology advances are done through parallel work. The lack of proper tools and…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-02-18 Pavel Vazquez , Kayoko Shoji , Steffen Novik , Stefan Krauss , Simon Rayner

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

Text rewriting with differential privacy (DP) provides concrete theoretical guarantees for protecting the privacy of individuals in textual documents. In practice, existing systems may lack the means to validate their privacy-preserving…

Computation and Language · Computer Science 2022-08-23 Timour Igamberdiev , Thomas Arnold , Ivan Habernal

Blockchain offers a decentralized, immutable, transparent system of records. It offers a peer-to-peer network of nodes with no centralised governing entity making it unhackable and therefore, more secure than the traditional paper-based or…

Cryptography and Security · Computer Science 2019-11-27 Harsh Jot Singh , Abdelhakim Senhaji Hafid

With the advent of blockchain technology, multiple research avenues and platforms for dialogue have opened up. However technology transfer to the pubic has not been implemented, such that regular public can access and make use of secure and…

Computers and Society · Computer Science 2019-09-04 Projjal Gupta

Bitcoin is an immutable permissionless blockchain system that has been extensively used as a public bulletin board by many different applications that heavily relies on its immutability. However, Bitcoin's immutability is not without its…

Cryptography and Security · Computer Science 2019-10-10 Dominic Deuber , Bernardo Magri , Sri Aravinda Krishnan Thyagarajan

Usually, a medical record (MR) contains the patients disease-oriented sensitive information. In addition, the MR needs to be shared among different bodies, e.g., diagnostic centres, hospitals, physicians, etc. Hence, retaining the privacy…

Cryptography and Security · Computer Science 2023-04-27 Md. Ahsan Habib , Kazi Md. Rokibul Alam , Yasuhiko Morimoto

Privacy is one of the essential pillars for the widespread adoption of blockchains, but public blockchains are transparent by nature. Modern analytics techniques can easily subdue the pseudonymity feature of a blockchain user. Some…

Cryptography and Security · Computer Science 2025-06-10 Amit Chaudhary , Hamish Ivey-Law

Blockchain is one of the most discussed and highly accepted technologies, primarily due to its application in almost every field where third parties are needed for trust. Blockchain technology relies on distributed consensus for trust,…

Cryptography and Security · Computer Science 2022-02-02 Arman Rasoodl Faridi , Faraz Masood , Ali Haider Thabet Shamsan , Mohammad Luqman , Monir Yahya Salmony

With the rapid development of blockchain technology, different types of blockchains are adopted and interoperability across blockchains has received widespread attention. There have been many cross-chain solutions proposed in recent years,…

Cryptography and Security · Computer Science 2021-03-26 Ying Lan , Jianbo Gao , Ke Wang , Jiashuo Zhang , Zhenhao Wu , Yuesheng Zhu , Zhong Chen

We present a secure approach for maintaining and reporting credit history records on the Blockchain. Our approach removes third-parties such as credit reporting agencies from the lending process and replaces them with smart contracts. This…

Cryptography and Security · Computer Science 2018-05-25 Amir Kafshdar Goharshady , Ali Behrouz , Krishnendu Chatterjee

The blockchain-based smart contract lacks privacy since the contract state and instruction code are exposed to the public. Combining smart-contract execution with Trusted Execution Environments (TEEs) provides an efficient solution, called…

Cryptography and Security · Computer Science 2022-04-21 Rujia Li , Qin Wang , Qi Wang , David Galindo , Mark Ryan

E-governance is a process that aims to enhance a government's ability to simplify all the processes that may involve government, citizens, businesses, and so on. The rapid evolution of digital technologies has often created the necessity…

Cryptography and Security · Computer Science 2022-03-17 Owen Lo , William J. Buchanan , Sarwar Sayeed , Pavlos Papadopoulos , Nikolaos Pitropakis , Christos Chrysoulas

COVID-19 is a severe global epidemic in human history. Even though there are particular medications and vaccines to curb the epidemic, tracing and isolating the infection source is the best option to slow the virus spread and reduce…

Cryptography and Security · Computer Science 2022-02-03 Jinyue Song , Tianbo Gu , Zheng Fang , Xiaotao Feng , Yunjie Ge , Hao Fu , Pengfei Hu , Prasant Mohapatra

Access to the system resources. The current access control systems face many problems, such as the presence of the third-party, inefficiency, and lack of privacy. These problems can be addressed by blockchain, the technology that received…

Cryptography and Security · Computer Science 2019-08-23 Sara Rouhani , Ralph Deters

Complex scientific codes and the datasets they generate are in need of a sophisticated categorization environment that allows the community to store, search, and enhance metadata in an open, dynamic system. Currently, data is often…

Digital Libraries · Computer Science 2012-03-20 Eric L. Seidel

With blockchain technology, information is recorded in a permanent distributed ledger that is maintained by multiple computers in a peer-to-peer network. There is no central authority that can alter records or change network consensus…

Computers and Society · Computer Science 2019-12-02 A. J. Santos

Lots of existing web applications include a component for rating internet resources (e.g., social media platforms include mechanisms for rating videos or posts). Based on the obtained rating, the most popular internet resources can generate…

Cryptography and Security · Computer Science 2020-09-08 Andreea Buterchi , Andrei Arusoaie

Voting is a very important issue which can be beneficial in term of choosing the right leader in an election. A good leader can bring prosperity to a country and also can lead the country in the right direction every time. However,…

Cryptography and Security · Computer Science 2019-10-31 Kazi Sadia , Md. Masuduzzaman , Rajib Kumar Paul , Anik Islam
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