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Despite technological advances, most smart objects in the Internet of Things (IoT) cannot be accessed using technologies designed and developed for interacting with powerful Internet servers. IoT use cases involve devices that not only have…

Cryptography and Security · Computer Science 2019-01-24 Nikos Fotiou , Vasilios A. Siris , George C. Polyzos

In the age of Big Data, releasing protected sensitive data at a future point in time is critical for various applications. Such self-emerging data release requires the data to be protected until a prescribed data release time and be…

Cryptography and Security · Computer Science 2019-02-18 Chao Li , Balaji Palanisamy

An integrated clinical environment (ICE) enables the connection and coordination of the internet of medical things around the care of patients in hospitals. However, ransomware attacks and their spread on hospital infrastructures, including…

Cryptography and Security · Computer Science 2021-12-16 Chandra Thapa , Kallol Krishna Karmakar , Alberto Huertas Celdran , Seyit Camtepe , Vijay Varadharajan , Surya Nepal

Ransomware has remained one of the most notorious threats in the cybersecurity field. Moving Target Defense (MTD) has been proposed as a novel paradigm for proactive defense. Although various approaches leverage MTD, few of them rely on the…

Cryptography and Security · Computer Science 2023-11-17 Jan von der Assen , Alberto Huertas Celdrán , Rinor Sefa , Gérôme Bovet , Burkhard Stiller

The Internet of Things (IoT) connected by Software Defined Networking (SDN) promises to bring great benefits to cyber-physical systems. However, the increased attack surface offered by the growing number of connected vulnerable devices and…

Networking and Internet Architecture · Computer Science 2020-06-26 Jiejun Hu , Martin Reed , Mays Al-Naday , Nikolaos Thomos

Safeguarding online communications using public key cryptography is a well-established practice today, but with the increasing reliance on `faceless', solely online entities one of the core aspects of public key cryptography is becoming a…

Cryptography and Security · Computer Science 2011-10-12 Alexander Zangerl

Internet technologies have made a paradigm shift in the fields of computing and data science and one such paradigm defining change is the Internet of Things or IoT. Nowadays, thousands of household appliances use integrated smart devices…

Cryptography and Security · Computer Science 2020-11-25 Projjal Gupta

Blockchain technology (BT) Ethereum Smart Contracts allows programmable transactions that involve the transfer of monetary assets among peers on a BT network independent of a central authorizing agency. Ethereum Smart Contracts are programs…

Cryptography and Security · Computer Science 2021-05-21 Noama Fatima Samreen , Manar H. Alalfi

Since the inception of permissionless blockchains with Bitcoin in 2008, it became apparent that their most well-suited use case is related to making the financial system and its advantages available to everyone seamlessly without depending…

General Finance · Quantitative Finance 2023-06-16 Georgios Palaiokrassas , Sandro Scherrers , Iason Ofeidis , Leandros Tassiulas

Blockchain is a distributed ledger, which is protected against malicious modifications by means of cryptographic tools, e.g. digital signatures and hash functions. One of the most prominent applications of blockchains is cryptocurrencies,…

Cryptography and Security · Computer Science 2019-12-20 E. O. Kiktenko , M. A. Kudinov , A. K. Fedorov

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

This chapter contributes to evolving the versatility and complexity of blockchain-enabled services through extending the functionality of blockchain-enforced smart contracts. The contributions include: (i) a method for automated management…

Cryptography and Security · Computer Science 2018-06-29 Craig Wright , Antoaneta Serguieva

Data marketplaces (DMs) promote the benefits of the Internet of Things (IoT) in smart cities. To facilitate the easy exchanges of real-time IoT data streams between device owners and third-party applications, it is required to provide…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-04-13 Ronghua Xu , Yu Chen

In IPFS content identifiers are constructed based on the item's data therefore the binding between an item's identifier and its data can be deterministically verified. Nevertheless, once an item is modified, its identifier also changes.…

Cryptography and Security · Computer Science 2021-05-19 Nikos Fotiou , Vasilios A. Siris , George C. Polyzos

Over the past three years, especially following WannaCry malware, ransomware has become one of the biggest concerns for private businesses, state, and local government agencies. According to Homeland Security statistics, 1.5 million…

Cryptography and Security · Computer Science 2020-03-18 Murat Ozer , Said Varlioglu , Bilal Gonen , Mehmet F. Bastug

Establishing and sustaining Metaverse service necessitates an unprecedented scale of resources. This paper considers the deployment of Metaverse service in a cloud-edge resource architecture, which can satisfy the escalating demand for…

Cryptography and Security · Computer Science 2023-10-10 Yanwei Gong , Xiaolin Chang , Jelena Mišić , Vojislav B. Mišić , Yingying Yao

Blacklists are a widely-used Internet security mechanism to protect Internet users from financial scams, malicious web pages and other cyber attacks based on blacklisted URLs. In this demo, we introduce PhishChain, a transparent and…

Cryptography and Security · Computer Science 2022-02-17 Shehan Edirimannage , Mohamed Nabeel , Charith Elvitigala , Chamath Keppitiyagama

Decentralized Finance (DeFi) is emerging as a peer-to-peer financial ecosystem, enabling participants to trade products on a permissionless blockchain. Built on blockchain and smart contracts, the DeFi ecosystem has experienced explosive…

Cryptography and Security · Computer Science 2023-09-07 Peng Qian , Rui Cao , Zhenguang Liu , Wenqing Li , Ming Li , Lun Zhang , Yufeng Xu , Jianhai Chen , Qinming He

Crime as a Service (CaaS) has evolved from isolated criminal incidents to a broad spectrum of illicit activities, including social media manipulation, foreign information manipulation and interference (FIMI), and the sale of disinformation…

Computers and Society · Computer Science 2025-12-19 David Arroyo , Rafael Mata Milla , Marc Almeida Ros , Nikolaos Lykousas , Ivan Homoliak , Constantinos Patsakis , Fran Casino

This research seeks to expose a major weakness in Crypto-ransomware by modeling it as four integral sub-systems consisting of: An Agent, a Command and Control Service (CNC), an anonymous payment channel (APC) and an obfuscated command…

Cryptography and Security · Computer Science 2018-09-27 Jonathan Graham