RETRACTED ARTICLE: Enhanced post-quantum key escrow system for supervised data conflict of interest based on consortium blockchain

Consortium blockchains offer privacy for members while allowing supervision peers access to on-chain data under certain circumstances. However, current key escrow schemes rely on vulnerable traditional asymmetric encryption/decryption algorithms. To address this issue, we have designed and implement...

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Bibliographic Details
Published in:Journal of combinatorial optimization Vol. 45; no. 5; p. 116
Main Authors: Xu, Shiwei, Sun, Ao, Ren, Zhengwei, Zhao, Yizhi, Ni, Qiufen, Tong, Yan
Format: Journal Article
Language:English
Published: New York Springer US 01.07.2023
Springer Nature B.V
Subjects:
Combinatorics
Convex and Discrete Geometry
Mathematical Modeling and Industrial Mathematics
Mathematics
Mathematics and Statistics
Operations Research/Decision Theory
Optimization
S.I. : Intelligent Optimization Algorithms for Industrial Applications
Theory of Computation
Enhanced key escrow
Post-quantum
Supervised data conflict of interest
Consortium blockchain
KEM algorithms
NIST call
ISSN:1382-6905, 1573-2886
Online Access:Get full text
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Summary:Consortium blockchains offer privacy for members while allowing supervision peers access to on-chain data under certain circumstances. However, current key escrow schemes rely on vulnerable traditional asymmetric encryption/decryption algorithms. To address this issue, we have designed and implemented an enhanced post-quantum key escrow system for consortium blockchains. Our system integrates NIST post-quantum public-key encryption/KEM algorithms and various post-quantum cryptographic tools to provide a fine-grained, single-point-of-dishonest-resistant, collusion-proof and privacy-preserving solution. We also offer chaincodes, related APIs, and invoking command lines for development. Finally, we perform detailed security analysis and performance evaluation, including the consumed time of chaincode execution and the needed on-chain storage space, and we also highlight the security and performance of related post-quantum KEM algorithms on consortium blockchain.
Bibliography:ObjectType-Correction/Retraction-1
SourceType-Scholarly Journals-1
content type line 14
ISSN:1382-6905
1573-2886
DOI:10.1007/s10878-023-01047-0