Journal article
LACT+: Practical Post-Quantum Scalable Confidential Transactions
Cryptography, Vol.7(2), pp.1-24
2023
Abstract
A "confidential monetary value" carries information about the real monetary value but does not disclose it. Post-quantum private blockchains with confidential monetary values-large-sized blockchains with large verification times-have the least scalability because they need to save and verify more information than those with "plain-text monetary values". High scalability is an essential security requirement for decentralized blockchain payment systems because the more honest peers who can afford to verify the blockchain copies are, the higher the security. We propose a quantum-safe transaction protocol for confidential monetary blockchains, LACT+ (Lattice-based Aggregable Confidential Transactions), which is more scalable than previous post-quantum confidential blockchains, i.e., many input/output transactions with logarithmic sized complexity.
Details
- Title
- LACT+: Practical Post-Quantum Scalable Confidential Transactions
- Authors
- Jayamine Alupotha (Corresponding Author) - Queensland University of TechnologyXavier Boyen - Queensland University of TechnologyMatthew McKague - Queensland University of Technology
- Publication details
- Cryptography, Vol.7(2), pp.1-24
- Publisher
- MDPI AG
- Date published
- 2023
- DOI
- 10.3390/cryptography7020024
- ISSN
- 2410-387X
- Copyright note
- © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
- Data Availability
- Not applicable.
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 991233466202621
- Output Type
- Journal article
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