Resilience of IOTA Consensus

Hamed Nazim Mamache (1) , Gabin Mazué (1) , Osama Rashid (1) , Gewu Bu (2) , Maria Potop-Butucaru (1, 3)

1 SU - Sorbonne Université
2 LIMOS - Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes
3 LINCS - Laboratory of Information, Network and Communication Sciences

Blockchains are appealing technologies with various applications ranging from banking to networking. IOTA blockchain is one of the most prominent blockchain specifically designed for IoT environments. In this paper we investigate the convergence of IOTA consensus algorithms: Fast Probabilistic Consensus and Cellular Consensus, when run on top of various topologies. Furthermore, we investigate their resilience to various types of adversaries. Our extensive simulations show that both Cellular Consensus and Fast Probabilistic Consensus have poor convergence rates even under low power adversaries and have poor scaling performances except for the case of Watts Strogatz topologies. Our study points out that the design of IOTs dedicated blockchains is still an open research problem and gives hints design.

Mots clés: Consensus; Byzantine fault; IOTA

Domaines: Calcul parallèle, distribué et partagé [cs.DC]; Modélisation et simulation; Cryptographie et sécurité [cs.CR]

Hamed Nazim Mamache, Gabin Mazué, Osama Rashid, Gewu Bu, Maria Potop-Butucaru. Resilience of IOTA Consensus. [Research Report] Sorbonne Universites, UPMC University of Paris 6; Université Clermont Auvergne (UCA). 2021. ⟨hal-03427543v2⟩