The goal of this thesis is to study the WabiSabi CoinJoin protocol for transaction mixing and its implementation called Wasabi 2.0. In the theoretical part, known methods for the anonymization of messages will be surveyed with a focus on the techniques usable for transaction mixing on the Bitcoin blockchain. An analysis of the properties of the WabiSabi protocol will be performed with a focus on achieved privacy assurances and relevant measurement metrics. In the practical part, a working setup with multiple Wasabi 2.0 wallets and corresponding backend coordinator will be created with a focus on the automatic execution of pre-scripted mixing scenarios and collection of the execution metadata. An evaluation of the impact of possible parameterization of a coinjoin protocol on the resulting privacy assurances shall be evaluated using the setup.
The following parts shall be covered:

• Adaptation of Wasabi Wallet 2.0 and coordinator setup for simulation using regtest network.
• Preparation of parametrizable automatic mixing scenarios.
• Practical evaluation of the influence of at least five parameters on relevant privacy metrics.
• Discussion of results and recommendations for practical deployment

Literature:
Á. Ficsór et. al.: WabiSabi: Centrally Coordinated CoinJoins with Variable Amounts https://eprint.iacr.org/2021/206.pdf
Wasabi 2.0 documentation https://docs.wasabiwallet.io/using-wasabi/CoinJoin.html