Publications

Mixing Solutions in Bitcoin and Ethereum Ecosystems: A Review and Tutorial

Published in Arxiv, 2023

This manuscript presents an exhaustive review of blockchain-based mixing services, aiming to fill the existing gap between academic innovations and real-world implementations. Starting with an identification of the core functionalities and techniques employed by mixing services, the paper delves into detailed explanations of these operational mechanisms. It further outlines an evaluation framework tailored for a rigorous assessment, highlighting the key vulnerabilities and strengths of various solutions. In addition, the study identifies potential attack vectors that compromise these services. The paper explores the dual nature of mixing services, while they contribute to the preservation of privacy, a cornerstone of blockchain technologies, they can also facilitate illicit activities. By addressing key research questions, this study not only offers a comprehensive overview of the current state of mixing services but also sets the stage for future academic discourse in this evolving field.

Recommended citation: Alireza Arbabi, Ardeshir Shojaeinasab, Behnam Bahrak, Homayoun Najjaran (2023). "Mixing Solutions in Bitcoin and Ethereum Ecosystems: A Review and Tutorial; Arxiv. https://arxiv.org/abs/2310.04899

RPoA: Redefined Proof of Activity

Published in Arxiv, 2022

We propose RPoA, a new consensus protocol that builds on top of some of the best features of the previous protocols, such as PoW, PoS, and PoA, and values active service provided by users on the network. While PoA tried to address some of the issues pertinent to PoS and PoW, it still fell short of solving the issues regarding high energy consumption, high resources needed, high mining latency, and the requirement for private blockchains. Our approach tries to address all the mentioned issues and falls in the service-based protocols category that gives mining credit to users as they serve on the network.

Recommended citation: S. Kamali, S. Shabihi, T. Fakharian, A. Arbabi, P. Tajmehrabi, M. Saadati, B. Bahrak (2022). "RPoA: Redefined Proof of Activity." Arxiv. https://arxiv.org/pdf/2210.08923