Publication Type

Conference Proceeding Article

Version

acceptedVersion

Publication Date

12-2019

Abstract

In this paper, we propose a novel consensus mechanism utilizing the quantum properties of qubits. This move from classical computing to quantum computing is shown to theoretically enhance the scalability and speed of distributed consensus as well as improve security and be a potential solution for the problem of blockchain interoperability. Using this method may circumvent the common problem known as the Blockchain Trilemma, enhancing scalability and speed without sacrificing de-centralization or byzantine fault tolerance. Consensus speed and scalability is shown by removing the need for multicast responses and exploiting quantum properties to ensure that only a single multicast is required. We also leverage work done on the E91 quantum key distribution protocol to securely transmit values and prevent a man-in-the-middle attack or system disturbance, enhancing confidentiality and integrity of transmitted information. Distributed ledger interoperability is explored by proposing a system to achieve a verifiable bridge for private transactions between a small private network and its corresponding consortium network. A proof-of-concept using IBM’s Qskit is shown from which initial results appear to show a strong sensitivity to non-consensus which could be useful in many applications. The present practical feasibility of the above is shown and future work is explored.

Keywords

Quantum Computation, Distributed Consensus, Distributed Ledger Technology, Blockchain, Byzantine Fault Tolerance

Discipline

Databases and Information Systems | Finance and Financial Management

Research Areas

Information Systems and Management

Publication

2019 IEEE Asia-Pacific Conference on Computer Science and Data Engineering (CSDE) 2019: December 9-11, Melbourne, Australia: Proceedings

First Page

1

Last Page

8

ISBN

9781728163031

Identifier

10.1109/CSDE48274.2019.9162386

Publisher

IEEE

City or Country

Piscataway, NJ

Embargo Period

6-29-2021

Copyright Owner and License

Authors

Additional URL

https://doi.org/10.1109/CSDE48274.2019.9162386

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