BCMIX: A Dynamic Self-organizing Blockchain-based Mix Anonymous System
Renpeng Zou (1), Xixiang Lv (1) ((1) School of Cyber Engineering,, Xidian University, Xian, China)

TL;DR
BCMIX is a blockchain-based, self-organizing anonymous communication system that enhances privacy, resists attacks, and maintains low latency without high resource demands, addressing limitations of prior anonymous systems.
Contribution
The paper introduces BCMIX, a novel dynamic self-organizing blockchain-based mix network that improves security and efficiency over existing anonymous communication systems.
Findings
BCMIX resists MitM and Sybil attacks effectively.
The system achieves low latency with minimal bandwidth and storage.
Performance testing shows BCMIX outperforms traditional anonymous systems.
Abstract
Increasing awareness of privacy-preserving has led to a strong focus on anonymous systems protecting anonymity. By studying early schemes, we summarize some intractable problems of anonymous systems. Centralization setting is a universal problem since most anonymous system rely on central proxies or presetting nodes to forward and mix messages, which compromises users' privacy in some way. Besides, availability becomes another important factor limiting the development of anonymous system due to the large requirement of additional additional resources (i.e. bandwidth and storage) and high latency. Moreover, existing anonymous systems may suffer from different attacks including abominable Man-in-the-Middle (MitM) attacks, Distributed Denial-of-service (DDoS) attacks and so on. In this context, we first come up with a BlockChain-based Mix-Net (BCMN) protocol and theoretically demonstrate…
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Taxonomy
TopicsInternet Traffic Analysis and Secure E-voting · Network Security and Intrusion Detection · Advanced Malware Detection Techniques
