Paper 2025/747

CoinMaze: Privacy-Focused CoinJoin Protocol for Bitcoin

Dmitry Astakhin
Abstract

Bitcoin is based on the Blockchain, an open ledger containing information about each transaction in the Bitcoin network. Blockchain serves many purposes, but it allows anyone to track all transactions and activities of each Bitcoin address. The privacy of the network is being threatened by some organizations that track transactions. Tracking and subsequent filtering of coins lead to the loss of exchangeability of Bitcoin. Despite Bitcoin’s transparency, it is possible to increase user privacy using a variety of existing methods. One of these methods is called CoinJoin, was proposed by Bitcoin developer Greg Maxwell in 2013. This technology involves combining several users transactions to create a single transaction with multiple inputs and outputs, which makes transaction analysis more complicated. This work describes the CoinMaze, a privacy-focused CoinJoin protocol based on the keyed-verification anonymous credentials (KVAC).

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
Keywords
BitcoinPrivacyCoinJoin
Contact author(s)
Maze_Frog @ mail ru
History
2025-04-27: approved
2025-04-26: received
See all versions
Short URL
http://ia.cr/2025/747
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2025/747,
      author = {Dmitry Astakhin},
      title = {{CoinMaze}: Privacy-Focused {CoinJoin} Protocol for Bitcoin},
      howpublished = {Cryptology {ePrint} Archive, Paper 2025/747},
      year = {2025},
      url = {http://eprint.iacr.org/2025/747}
}
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