Studying Bitcoin Privacy Attacks and Their Impact on Bitcoin-Based Identity Methods

Studying Bitcoin Privacy Attacks and Their Impact on Bitcoin-Based Identity Methods

Abstract

The Bitcoin blockchain was the first publicly verifiable, and distributed ledger, where it is possible for everyone to download and check the full history of all data records from the genesis block. These properties lead to the emergence of new types of applications and the redesign of traditional systems that no longer respond to current business needs (e.g., transparency, protection against censorship, decentralization). One particular application is the use of blockchain technology to enable decentralized and self-sovereign identities including new mechanisms for creating, resolving, and revoking them. The public availability of data records has, in turn, paved the way for new kinds of attacks that combine sophisticated heuristics with auxiliary information to compromise users' privacy and deanonymize their identities. In this paper, we review and categorize Bitcoin privacy attacks, investigate their impact on one of the Bitcoin-based identity methods namely did:btcr, and analyze and discuss its privacy properties.

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Authors
  • Ghesmati, Simin
  • Fdhila, Walid
  • Weippl, Edgar
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Shortfacts
Category
Paper in Conference Proceedings or in Workshop Proceedings (Paper)
Event Title
Business Process Management: Blockchain and Robotic Process Automation Forum
Divisions
Security and Privacy
Subjects
Computersicherheit
Angewandte Informatik
Event Location
Rome, Italy
Event Type
Conference
Event Dates
06-10 Sept 2021
Series Name
Business Process Management: Blockchain and Robotic Process Automation Forum
Publisher
Springer International Publishing
Page Range
pp. 85-101
Date
2021
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