Blockchain Meets Covert Communication: A Survey

被引：14
作者：
Chen, Zhuo [1 ]
Zhu, Liehuang [1 ]
Jiang, Peng [1 ]
Zhang, Can [1 ]
Gao, Feng [1 ]
He, Jialing [2 ]
Xu, Dawei [3 ,4 ]
Zhang, Yan [5 ,6 ]
机构：
[1] Beijing Inst Technol, Sch Cyberspace Sci & Technol, Beijing 100081, Peoples R China
[2] Chongqing Univ, Coll Comp Sci, Chongqing 400044, Peoples R China
[3] Beijing Inst Technol, Sch Comp Sci & Technol, Beijing 100081, Peoples R China
[4] Changchun Univ, Coll Cybersecur, Changchun 130022, Peoples R China
[5] Univ Oslo, Dept Informat, N-0315 Oslo, Norway
[6] Simula Metropolitan Ctr Digital Engn, Ctr Resilient Networks & Applicat, N-0167 Oslo, Norway
来源：
IEEE COMMUNICATIONS SURVEYS AND TUTORIALS | 2022年 / 24卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Blockchain; covert communication; covert channel; Bitcoin; Ethereum; NEXT-GENERATION BOTNETS; TIMING CHANNELS; CHALLENGES; SECURITY; MODEL; INTERNET; BITCOIN; SYSTEM;
D O I：
10.1109/COMST.2022.3204281
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Covert communication enables covert information transmission in an undetectable way to prevent the exposure of communication behaviors. Blockchain-based covert communication breaks through the limitations on concealment, reliability and anti-traceability, and has shown promising application prospects in both sensitive data transmission and botnets. Although there are studies on blockchain-based covert communication, it still lacks a systematic investigation. In this paper, we conduct a comprehensive study on channel building and survey its core technologies by information embedding, transaction filtering, and transaction obfuscation. We also summarize evaluation metrics to better analyze blockchain-based covert channels. Privacy aspects are also discussed. Finally, we suggest seven future directions to stir research efforts into this area.
引用
收藏
页码：2163 / 2192
页数：30
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