DPNM: A Differential Private Notary Mechanism for Privacy Preservation in Cross-Chain Transactions
Swinburne University of Technology · Xinjiang University · +5 more institutions
Abstract
Notary cross-chain transaction technologies have obtained broad affirmation from industry and academia as they can avoid data islands and enhance chain interoperability. However, the increased privacy concern in data sharing makes the participants hesitate to upload sensitive information without the trust foundation of the external network. To address this issue, this paper proposes a differential private notary mechanism (DPNM) to preserve privacy in blockchain interoperations. It establishes a fully trusted notary organization to conduct data perturbation before replying query to the external blockchain network. In addition, the DPNM contains two built-in privacy budget allocation schemes: Efficiency…
Citation impact
- FWCI
- 121.05
- Percentile
- 100%
- References
- 26
Authors
9Topics & keywords
- Differential privacy
- Computer science
- Computer security
- Mechanism (biology)
- Internet privacy
- Chain (unit)
- Privacy protection
- Information privacy