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Decentralized finance revolutionizes traditional financial systems by leveraging blockchain technology to reduce trust. However, some vulnerabilities persist, notably front-running by malicious actors who exploit transaction information to…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-03-18 Christian Cachin , Jovana Micic

Blockchain technology has advanced rapidly in recent years and is now widely used in a variety of fields. Blockchain appears to be one of the best solutions for managing massive heterogeneous devices while achieving advanced data security…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-08-05 Xu Yuan , Fang Luo , Muhammad Zeeshan Haider , Zhikui Chen , Yucheng Li

With the advent of quantum computing, cryptocurrencies that rely on blockchain technology face mounting cryptographic vulnerabilities. This paper presents a comprehensive literature review evaluating how quantum algorithms, specifically…

Cryptography and Security · Computer Science 2025-09-09 Adi Mutha , Jitendra Sandu

Quantum computers pose a fundamental threat to widely deployed public-key cryptosystems, such as RSA and ECC, by enabling efficient integer factorization using Shor's algorithm. Theoretical resource estimates suggest that 2048-bit RSA keys…

Since the inception of Bitcoin, cryptocurrencies and the underlying blockchain technology have attracted an increasing interest from both academia and industry. Among various core components, consensus protocol is the defining technology…

Cryptography and Security · Computer Science 2020-02-21 Yang Xiao , Ning Zhang , Wenjing Lou , Y. Thomas Hou

With the rapid growth of hyperconnected devices and decentralized data architectures, safeguarding Internet of Things (IoT) transactions is becoming increasingly challenging. Blockchain presents a promising solution, yet its effectiveness…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-14 Sokratis Vavilis , Harris Niavis , Konstantinos Loupos

Blockchain is a novel technology that is rising a lot of interest in the industrial and re- search sectors because its properties of decentralisation, immutability and data integrity. Initially, the underlying consensus mechanism has been…

Cryptography and Security · Computer Science 2018-05-10 Stefano De Angelis

Large Language Models (LLMs) have achieved remarkable success across a wide range of applications. However, individual LLMs often produce inconsistent, biased, or hallucinated outputs due to limitations in their training corpora and model…

Cryptography and Security · Computer Science 2025-05-09 Haoxiang Luo , Gang Sun , Yinqiu Liu , Dongcheng Zhao , Dusit Niyato , Hongfang Yu , Schahram Dustdar

Consensus protocols play a pivotal role to balance security and efficiency in blockchain systems. In this paper, we propose an evaluation framework for blockchain consensus protocols termed as AlphaBlock. In this framework, we compare the…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-07-28 Haitao Xiang , Zhijie Ren , Ziheng Zhou , Ning Wang , Hanqing Jin

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

The advent of quantum computing poses a significant threat to the foundational cryptographic algorithms that secure modern digital communications. Protocols such as HTTPS, digital certificates, and public key infrastructures (PKIs) heavily…

Emerging Technologies · Computer Science 2025-08-05 Arimondo Scrivano

The rapid evolution of Internet of Things (IoT) environments has created an urgent need for secure and trustworthy distributed computing systems, particularly when dealing with heterogeneous devices and applications where centralized trust…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-05-02 Murtaza Rangwala , Rajkumar Buyya

The consensus algorithm is crucial in blockchain for ensuring the validity and security of transactions across the decentralized network. However, achieving consensus among nodes and packaging blocks in blockchain networks is a complex task…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-07-10 Yang Li , Chunhe Xia , Chunyan Li , Yuan Zhao , Chen Chen , Tianbo Wang

The COVID-19 pandemic necessitated the emergence of decentralized Clinical Trials (DCTs) due to patient retention, accelerate trials, improve data accessibility, enable virtual care, and facilitate seamless communication through integrated…

Cryptography and Security · Computer Science 2024-09-02 Ashok Kumar Peepliwall , Hari Mohan Pandey , Surya Prakash , Anand A Mahajan , Sudhinder Singh Chowhan , Vinesh Kumar , Rahul Sharma

Decentralized systems built around blockchain technology promise clients an immutable ledger. They add a transaction to the ledger after it undergoes consensus among the replicas that run a Proof-of-Stake (PoS) or Byzantine Fault-Tolerant…

Cryptography and Security · Computer Science 2025-08-08 Junchao Chen , Suyash Gupta , Alberto Sonnino , Lefteris Kokoris-Kogias , Mohammad Sadoghi

With the advancement of blockchain technology, chained Byzantine Fault Tolerant (BFT) protocols have been increasingly adopted in practical systems, making their performance a crucial aspect of the study. In this paper, we introduce a…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-01-08 Yining Tang , Qihang Luo , Runchao Han , Jianyu Niu , Chen Feng , Yinqian Zhang

Fault-tolerant consensus has been studied extensively in the literature, because it is one of the most important distributed primitives and has wide applications in practice. This paper surveys important results on fault-tolerant consensus…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-08-30 Lewis Tseng

Byzantine Fault Tolerant (BFT) consensus exhibits higher throughput in comparison to Proof of Work (PoW) in blockchains. But BFT-based protocols suffer from scalability problems with respect to the number of replicas in the network. The…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-04-30 Mohammad M. Jalalzai , Costas Busch , Golden Richard

Industry 5.0 depends on intelligence, automation, and hyperconnectivity operations for effective and sustainable human-machine collaboration. Pivotal technologies like the Internet of Things (IoT) enable this by facilitating connectivity…

Quantum Physics · Physics 2025-03-27 Utkarsh Azad , Bikash K. Behera , Houbing Song , Ahmed Farouk

Byzantine Fault Tolerant (BFT) systems are considered by the systems research community to be state of the art with regards to providing reliability in distributed systems. BFT systems provide safety and liveness guarantees with reasonable…

Distributed, Parallel, and Cluster Computing · Computer Science 2011-10-24 Nikos Chondros , Konstantinos Kokordelis , Mema Roussopoulos
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