Z-Channel: Scalable and efficient scheme in Zerocash. Issue 86 (September 2019)
- Record Type:
- Journal Article
- Title:
- Z-Channel: Scalable and efficient scheme in Zerocash. Issue 86 (September 2019)
- Main Title:
- Z-Channel: Scalable and efficient scheme in Zerocash
- Authors:
- Zhang, Yuncong
Long, Yu
Liu, Zhen
Liu, Zhiqiang
Gu, Dawu - Abstract:
- Abstract: Decentralized ledger-based cryptocurrencies like Bitcoin present a way to construct payment systems without trusted banks. However, the anonymity of Bitcoin is fragile. Many altcoins and protocols are designed to improve Bitcoin on this issue, among which Zerocash is the first full-fledged anonymous ledger-based currency, using zero-knowledge proof, specifically zk-SNARK, to protect privacy. However, Zerocash suffers two problems: Poor scalability and low efficiency. In this paper, we address the above issues by constructing a micropayment system in Zerocash called Z-Channel. First, we improve Zerocash to support multisignature and time lock functionalities, and prove that the reconstructed scheme is secure. Then we construct Z-Channel based on the improved Zerocash scheme. Our experiments demonstrate that Z-Channel significantly improves the scalability and reduces the confirmation time for Zerocash payments.
- Is Part Of:
- Computers & security. Issue 86(2019)
- Journal:
- Computers & security
- Issue:
- Issue 86(2019)
- Issue Display:
- Volume 86, Issue 86 (2019)
- Year:
- 2019
- Volume:
- 86
- Issue:
- 86
- Issue Sort Value:
- 2019-0086-0086-0000
- Page Start:
- 112
- Page End:
- 131
- Publication Date:
- 2019-09
- Subjects:
- Computer security -- Periodicals
Electronic data processing departments -- Security measures -- Periodicals
005.805 - Journal URLs:
- http://www.sciencedirect.com/science/journal/01674048 ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.cose.2019.05.012 ↗
- Languages:
- English
- ISSNs:
- 0167-4048
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 3394.781000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 16503.xml