Security Analysis on Tangle-Based Blockchain Through Simulation

Abstract

Tangle provides an enlightening paradigm for DAG-based structures. We build a simple but flexible simulation network for Tangle by identifying its features. Based on that, we construct three types of attack strategies via defining basic actions and behaviours. We further evaluate these attacks in multi-dimensions with 12 sets of experiments, followed by comprehensive discussions. The results show the trend under different strategies and configurations. Our work provides an educational example for both attack and defense towards Tangle-based blockchains.