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Wicht, F.-X., Cachin, C., & Le, D. V. (2023). Blockchain privacy notions using the transaction graph model. , University of Fribourg. 
Added by: Jack (3/6/23, 10:24 PM)   Last edited by: Jack (3/6/23, 10:29 PM)
Resource type: Thesis/Dissertation
BibTeX citation key: Wicht2023
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Categories: Monero-focused
Creators: Cachin, Le, Wicht
Publisher: University of Fribourg
Views: 78/2090
Attachments   2022.msc.francois-xavier.wicht.thesis.pdf [52/664] URLs   https://crypto.uni ... .thesis.pdf#page18
Considerable work explores blockchain privacy notions. Yet, it usually employs entirely different models and notations, complicating potential comparisons. In this work, we use the Transaction Directed Acyclic Graph (TDAG) and extend it to capture blockchain privacy notions (PDAG). We give consistent definitions for untraceability, unlinkability, and confidentiality. Moreover, we specify conditions on a blockchain system to achieve each aforementioned privacy notion. Thus, we can compare the two most prominent privacy-preserving blockchains – Monero and Zcash, in terms of privacy guarantees. Finally, we unify linking heuristics from the literature with our graph notation and review a good portion of research on blockchain privacy.
The authors define untracability, unlinkability, and confidentiality to create a model to formally compare cryptocurrencies.
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