OblivChain: Enabling Oblivious Queries for Blockchain Light Clients with Malicious Security

Yifang Zhang; Mingyue Wang; Fangda Guo; Xidi Qu; Yu Guo; Shengling Wang

doi:10.1007/978-981-97-5562-2_1

OblivChain: Enabling Oblivious Queries for Blockchain Light Clients with Malicious Security

Yifang Zhang, Mingyue Wang, Fangda Guo^*, Xidi Qu, Yu Guo^*, Shengling Wang^*

^*Corresponding author for this work

Department of Computer Science

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

The blockchain database has gained increasing popularity with the prosperity of cryptocurrencies and decentralized applications. To address storage overhead issues, the light client, which only stores lightweight blockchain data and accesses on-chain data via a full node, has been introduced. However, the method of accessing outsourced requests raises significant privacy concerns, including the integrity of returned results and leakage of block access history. In this paper, we propose OblivChain, a secure and efficient oblivious query scheme for blockchain systems. We utilize the multi-server architecture to provide decentralized query services for full nodes against malicious security threats. To hide sensitive access information, we employ a customized design of the read-only ORAM with enhanced query performance. We present a comprehensive formal security analysis and experimental evaluations to demonstrate the practicality of our design. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

Original language	English
Title of host publication	Database Systems for Advanced Applications
Subtitle of host publication	29th International Conference, DASFAA 2024, Proceedings, Part IV
Editors	Makoto Onizuka, Jae-Gil Lee, Yongxin Tong, Chuan Xiao, Yoshiharu Ishikawa, Sihem Amer-Yahia, H. V. Jagadish, Kejing Lu
Publisher	Springer Singapore
Pages	3-19
ISBN (Electronic)	978-981-97-5562-2
ISBN (Print)	978-981-97-5561-5
DOIs	https://doi.org/10.1007/978-981-97-5562-2_1
Publication status	Published - 2024
Event	29th International Conference on Database Systems for Advanced Applications, DASFAA 2024 - Gifu, Japan Duration: 2 Jul 2024 → 5 Jul 2024

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	14853 LNCS
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Conference

Conference	29th International Conference on Database Systems for Advanced Applications, DASFAA 2024
Country/Territory	Japan
City	Gifu
Period	2/07/24 → 5/07/24

Research Keywords

Blockchain
Light Clients
Oblivious Query

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10.1007/978-981-97-5562-2_1

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Zhang, Y., Wang, M., Guo, F., Qu, X., Guo, Y., & Wang, S. (2024). OblivChain: Enabling Oblivious Queries for Blockchain Light Clients with Malicious Security. In M. Onizuka, J.-G. Lee, Y. Tong, C. Xiao, Y. Ishikawa, S. Amer-Yahia, H. V. Jagadish, & K. Lu (Eds.), Database Systems for Advanced Applications: 29th International Conference, DASFAA 2024, Proceedings, Part IV (pp. 3-19). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 14853 LNCS). Springer Singapore. https://doi.org/10.1007/978-981-97-5562-2_1

Zhang, Yifang ; Wang, Mingyue ; Guo, Fangda et al. / OblivChain : Enabling Oblivious Queries for Blockchain Light Clients with Malicious Security. Database Systems for Advanced Applications: 29th International Conference, DASFAA 2024, Proceedings, Part IV. editor / Makoto Onizuka ; Jae-Gil Lee ; Yongxin Tong ; Chuan Xiao ; Yoshiharu Ishikawa ; Sihem Amer-Yahia ; H. V. Jagadish ; Kejing Lu. Springer Singapore, 2024. pp. 3-19 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

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title = "OblivChain: Enabling Oblivious Queries for Blockchain Light Clients with Malicious Security",

abstract = "The blockchain database has gained increasing popularity with the prosperity of cryptocurrencies and decentralized applications. To address storage overhead issues, the light client, which only stores lightweight blockchain data and accesses on-chain data via a full node, has been introduced. However, the method of accessing outsourced requests raises significant privacy concerns, including the integrity of returned results and leakage of block access history. In this paper, we propose OblivChain, a secure and efficient oblivious query scheme for blockchain systems. We utilize the multi-server architecture to provide decentralized query services for full nodes against malicious security threats. To hide sensitive access information, we employ a customized design of the read-only ORAM with enhanced query performance. We present a comprehensive formal security analysis and experimental evaluations to demonstrate the practicality of our design. {\textcopyright} The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.",

keywords = "Blockchain, Light Clients, Oblivious Query",

author = "Yifang Zhang and Mingyue Wang and Fangda Guo and Xidi Qu and Yu Guo and Shengling Wang",

year = "2024",

doi = "10.1007/978-981-97-5562-2_1",

language = "English",

isbn = "978-981-97-5561-5",

series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",

publisher = "Springer Singapore",

pages = "3--19",

editor = "Makoto Onizuka and Jae-Gil Lee and Yongxin Tong and Xiao, {Chuan } and Ishikawa, {Yoshiharu } and Sihem Amer-Yahia and Jagadish, {H. V.} and Kejing Lu",

booktitle = "Database Systems for Advanced Applications",

address = "Singapore",

note = "29th International Conference on Database Systems for Advanced Applications, DASFAA 2024 ; Conference date: 02-07-2024 Through 05-07-2024",

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Zhang, Y, Wang, M, Guo, F, Qu, X, Guo, Y & Wang, S 2024, OblivChain: Enabling Oblivious Queries for Blockchain Light Clients with Malicious Security. in M Onizuka, J-G Lee, Y Tong, C Xiao, Y Ishikawa, S Amer-Yahia, HV Jagadish & K Lu (eds), Database Systems for Advanced Applications: 29th International Conference, DASFAA 2024, Proceedings, Part IV. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 14853 LNCS, Springer Singapore, pp. 3-19, 29th International Conference on Database Systems for Advanced Applications, DASFAA 2024, Gifu, Japan, 2/07/24. https://doi.org/10.1007/978-981-97-5562-2_1

OblivChain: Enabling Oblivious Queries for Blockchain Light Clients with Malicious Security. / Zhang, Yifang; Wang, Mingyue; Guo, Fangda et al.
Database Systems for Advanced Applications: 29th International Conference, DASFAA 2024, Proceedings, Part IV. ed. / Makoto Onizuka; Jae-Gil Lee; Yongxin Tong; Chuan Xiao; Yoshiharu Ishikawa; Sihem Amer-Yahia; H. V. Jagadish; Kejing Lu. Springer Singapore, 2024. p. 3-19 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 14853 LNCS).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - OblivChain

T2 - 29th International Conference on Database Systems for Advanced Applications, DASFAA 2024

AU - Zhang, Yifang

AU - Wang, Mingyue

AU - Guo, Fangda

AU - Qu, Xidi

AU - Guo, Yu

AU - Wang, Shengling

PY - 2024

Y1 - 2024

N2 - The blockchain database has gained increasing popularity with the prosperity of cryptocurrencies and decentralized applications. To address storage overhead issues, the light client, which only stores lightweight blockchain data and accesses on-chain data via a full node, has been introduced. However, the method of accessing outsourced requests raises significant privacy concerns, including the integrity of returned results and leakage of block access history. In this paper, we propose OblivChain, a secure and efficient oblivious query scheme for blockchain systems. We utilize the multi-server architecture to provide decentralized query services for full nodes against malicious security threats. To hide sensitive access information, we employ a customized design of the read-only ORAM with enhanced query performance. We present a comprehensive formal security analysis and experimental evaluations to demonstrate the practicality of our design. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

AB - The blockchain database has gained increasing popularity with the prosperity of cryptocurrencies and decentralized applications. To address storage overhead issues, the light client, which only stores lightweight blockchain data and accesses on-chain data via a full node, has been introduced. However, the method of accessing outsourced requests raises significant privacy concerns, including the integrity of returned results and leakage of block access history. In this paper, we propose OblivChain, a secure and efficient oblivious query scheme for blockchain systems. We utilize the multi-server architecture to provide decentralized query services for full nodes against malicious security threats. To hide sensitive access information, we employ a customized design of the read-only ORAM with enhanced query performance. We present a comprehensive formal security analysis and experimental evaluations to demonstrate the practicality of our design. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

KW - Blockchain

KW - Light Clients

KW - Oblivious Query

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85209571873&origin=recordpage

U2 - 10.1007/978-981-97-5562-2_1

DO - 10.1007/978-981-97-5562-2_1

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 978-981-97-5561-5

T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

SP - 3

EP - 19

BT - Database Systems for Advanced Applications

A2 - Onizuka, Makoto

A2 - Lee, Jae-Gil

A2 - Tong, Yongxin

A2 - Xiao, Chuan

A2 - Ishikawa, Yoshiharu

A2 - Amer-Yahia, Sihem

A2 - Jagadish, H. V.

A2 - Lu, Kejing

PB - Springer Singapore

Y2 - 2 July 2024 through 5 July 2024

ER -

Zhang Y, Wang M, Guo F, Qu X, Guo Y, Wang S. OblivChain: Enabling Oblivious Queries for Blockchain Light Clients with Malicious Security. In Onizuka M, Lee JG, Tong Y, Xiao C, Ishikawa Y, Amer-Yahia S, Jagadish HV, Lu K, editors, Database Systems for Advanced Applications: 29th International Conference, DASFAA 2024, Proceedings, Part IV. Springer Singapore. 2024. p. 3-19. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). Epub 2024 Oct 27. doi: 10.1007/978-981-97-5562-2_1

OblivChain: Enabling Oblivious Queries for Blockchain Light Clients with Malicious Security

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