[Resource Topic] 2023/1862: Analyzing UTXO-Based Blockchain Privacy Threats

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Analyzing UTXO-Based Blockchain Privacy Threats

Authors: Simin Ghesmati, Walid Fdhila, Edgar Weippl


While blockchain technologies leverage compelling characteristics in terms of decentralization, immutability, and transparency, user privacy in public blockchains remains a fundamental challenge that requires particular attention. This is mainly due to the history of all transactions being accessible and available to anyone, thus making it possible for an attacker to infer data about users that is supposed to remain private.

In this paper, we provide a threat model of possible privacy attacks on users utilizing the Bitcoin blockchain. To this end, we followed the LINDDUN GO methodology to identify threats and suggest possible mitigation.

ePrint: https://eprint.iacr.org/2023/1862

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