Institutsseminar/2024-10-11

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Vorträge

Vortragende(r)	Yannik Sproll
Titel	Simulating Attacks on Blockchain Systems using Palladio
Vortragstyp	Bachelorarbeit
Betreuer(in)	Robert Heinrich
Vortragssprache	Englisch
Vortragsmodus	in Präsenz
Kurzfassung	Due to the increasing interest of public institutions in blockchain technology, blockchain systems could become a part of critical infrastructure for applications such as cryptocurrencies. Such scenarios impose strong security requirements on blockchain systems. To estimate the impact of the many characteristics that influence the security of blockchain systems, software architects need a way to analyze their blockchain system designs that is adaptable to various blockchain system configurations. In this work, I present a discrete event simulator that can simulate blockchain systems with various configurations and estimate the probability of successful double-spending attacks. I present a dedicated design model to represent blockchain system configurations and a simulation model that simulates blockchain systems based on design model instances. I ran experiments with different blockchain system configurations and obtained plausible success probabilities for double-spending attacks. My experiments revealed the influence of the network topology shape on the resilience of blockchain systems against doublespending attacks, demonstrating the practical usability of my approach to systematically improving blockchain system designs.