The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.
Blockchain Access Privacy: Challenges and Directions
Abstract
Privacy, facilitated by a confluence of cryptography and decentralization, is one of the primary motivations for the adoption of cryptocurrencies like Bitcoin. Alas, Bitcoins privacy promise has proven illusory, and despite growing interest in privacy-centric blockchains, most blockchain users remain susceptible to privacy attacks that exploit network-layer information and access patterns that leak as users interact with blockchains. Understanding if and how blockchain-based applications can provide strong privacy guarantees is a matter of increasing urgency. Many researchers advocate using anonymous communications networks, such as Tor, to ensure access privacy. We challenge this approach, showing the need for mechanisms through which non-anonymous users can (i) publish transactions that cannot be linked to their network addresses or to their other transactions, and (ii) fetch details of specific transactions without revealing which transactions they seek. We hope this article inspires blockchain researchers to think beyond Tor and tackle these important access privacy problems head-on.
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“To solve this problem, it is envisioned that complete anonymization, decentralization, and untraceability can be realised in 6G networks by blockchain technology [62].”
From What should 6G be? (2020) · cites this paper as [62]
Citations
Cites
Bitcoin: A Peer-to-Peer Electronic Cash SystemPreprint
Nakamoto, S. (2019) · SSRN Electronic Journal · doi:10.2139/ssrn.3440802 · Cited by 14,677
Evaluating user privacy in bitcoin
Androulaki, E., Karame, G. O., Roeschlin, M., Scherer, T., & Capkun, S. (2013) · Lecture Notes in Computer Science · doi:10.1007/978-3-642-39884-1_4 · Cited by 700
An Analysis of Anonymity in Bitcoin Using P2P Network Traffic
Koshy, P., Koshy, D., & McDaniel, P. D. (2014) · Lecture notes in computer science · doi:10.1007/978-3-662-45472-5_30 · Cited by 409
Concurrency and Privacy with Payment-Channel Networks
Malavolta, G., Moreno-Sánchez, P., Kate, A., Maffei, M., & Ravi, S. (2017) · ACM SIGSAC Conference on Computer and Communications Security (CCS) · doi:10.1145/3133956.3134096 · Cited by 294
Self-citationTumbleBit: An Untrusted Bitcoin-Compatible Anonymous Payment Hub
Heilman, E., Alshenibr, L., Baldimtsi, F., Scafuro, A., & Goldberg, S. (2017) · Network and Distributed System Security Symposium · doi:10.14722/ndss.2017.23086 · Cited by 275
Green, M., & Miers, I. (2017) · ACM SIGSAC Conference on Computer and Communications Security (CCS) · doi:10.1145/3133956.3134093 · Cited by 237
Meiklejohn, S., Pomarole, M., Jordan, G., Levchenko, K., McCoy, D., Voelker, G. M., & Savage, S. (2016) · Communications of the ACM · doi:10.1145/2896384 · Cited by 211
Distributed Point Functions and Their Applications
Gilboa, N., & Ishai, Y. (2014) · Lecture notes in computer science · doi:10.1007/978-3-642-55220-5_35 · Cited by 210
Bitcoin over Tor isn't a Good Idea
Biryukov, A., & Pustogarov, I. (2015) · 2015 IEEE Symposium on Security and Privacy · doi:10.1109/sp.2015.15 · Cited by 193
P2P Mixing and Unlinkable Bitcoin Transactions
Ruffing, T., Moreno-Sánchez, P., & Kate, A. (2017) · Network and Distributed System Security Symposium · doi:10.14722/ndss.2017.23415 · Cited by 122
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Chowdhury, M. Z., Shahjalal, M. A., Ahmed, S., & Jang, Y. M. (2020) · IEEE Open Journal of the Communications Society · doi:10.1109/ojcoms.2020.3010270 · Cited by 1,925
Dang, S., Amin, O., Shihada, B., & Alouini, M.-S. (2020) · Nature Electronics · doi:10.1038/s41928-019-0355-6 · Cited by 1,790
A Survey on IoT Security: Application Areas, Security Threats, and Solution Architectures
Hassija, V., Chamola, V., Saxena, V., Jain, D., Goyal, P., & Sikdar, B. (2019) · IEEE Access · doi:10.1109/access.2019.2924045 · Cited by 1,445
A survey of blockchain from the perspectives of applications, challenges, and opportunities
Monrat, A. A., Schelen, O., & Andersson, K. (2019) · IEEE Access · doi:10.1109/access.2019.2936094 · Cited by 1,077
Differential Privacy Techniques for Cyber Physical Systems: A Survey
Hassan, M. U., Rehmani, M. H., & Chen, J. (2020) · IEEE Communications Surveys & Tutorials · doi:10.1109/comst.2019.2944748 · Cited by 564
Metadata
- Authors
- Henry, R., Herzberg, A., & Kate, A.
- Affiliations
- University of Calgary (CA)
- University of Connecticut (US)
- Purdue University West Lafayette (US)
- Venue
- IEEE Security & Privacy
- Published
- 2018-07
- Volume
- 16
- Issue
- 4
- Pages
- 38-45
- ISSN
- 1540-7993 (ISSN-L)
- 1558-4046
- OpenAlex
- W2886177063
- Cited by
- 273
- References
- 15
- Citations by year
- 2026: 7 · 2025: 26 · 2024: 28 · 2023: 40 · 2022: 38 · 2021: 47 · 2020: 46 · 2019: 39 · 2018: 2
- FWCI
- 54.03
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- IEEE Security & Privacy (publishedVersion)
- Funders
- National Science Foundation
- Israel Science Foundation
- Topics
- Physical Sciences › Computer Science › Information Systems › Blockchain Technology Applications and Security
- Physical Sciences › Computer Science › Artificial Intelligence › Internet Traffic Analysis and Secure E-voting
- Physical Sciences › Computer Science › Computer Networks and Communications › Cryptography and Data Security
- Keywords
- blockchain privacy, privacy attacks, Tor, unlinkability, transaction unlinkability, Bitcoin
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