Projects per year
Abstract
In this paper, we introduce FPPW, a new payment channel with watchtower scheme for Bitcoin. This new scheme provides fairness w.r.t. all channel participants including both channel parties and the watchtower. It means that the funds of any honest channel participant are safe even assuming that other two channel participants are corrupted and/or collude with each other. Furthermore, the watchtower in FPPW learns no information about the off-chain transactions and hence FPPW provides privacy against the watchtower. As a byproduct, we also define the coverage of a watchtower scheme, that is the total capacity of channels that a watchtower can cover on a scale of 0 to 1, and show that FPPW’s coverage is higher than those of PISA and Cerberus. The scheme can be implemented without any update in Bitcoin script.
Original language | English |
---|---|
Title of host publication | 25th International Conference, FC 2021 Virtual Event, March 1–5, 2021 Revised Selected Papers, Part II |
Editors | Nikita Borisov, Claudia Diaz |
Place of Publication | Berlin Germany |
Publisher | Springer |
Pages | 151-169 |
Number of pages | 19 |
ISBN (Electronic) | 9783662643310 |
ISBN (Print) | 9783662643303 |
DOIs | |
Publication status | Published - 2021 |
Event | Financial Cryptography and Data Security Conference 2021 - Online Duration: 1 Mar 2021 → 5 Mar 2021 Conference number: 25th https://link.springer.com/book/10.1007/978-3-662-64331-0 (Proceedings) |
Publication series
Name | Lecture Notes in Computer Science |
---|---|
Publisher | Springer |
Volume | 12675 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | Financial Cryptography and Data Security Conference 2021 |
---|---|
Abbreviated title | FC 2021 |
Period | 1/03/21 → 5/03/21 |
Internet address |
|
Keywords
- Bitcoin
- Generalized channel
- Lightning network
- Payment channel
- Privacy
- Security
- Watchtower
Projects
- 2 Finished
-
A Scalable and Adaptive-Resilient Blockchain
Yu, J.
Australian Research Council (ARC)
28/07/21 → 28/07/24
Project: Research
-
Privacy-preserving Data Processing on the Cloud
Steinfeld, R., Pieprzyk, J. P., Liu, J., Desmedt, Y. & Wang, H.
20/06/18 → 30/06/24
Project: Research