POSTER: Oblivious Access System on Decentralized Database over Parallel Smart Contract Model

Zhong Yi Guo; Yu Chi Chen; Hsiu Ping Lin

doi:10.1145/3320269.3405436

POSTER: Oblivious Access System on Decentralized Database over Parallel Smart Contract Model

Zhong Yi Guo
, Yu Chi Chen
, Hsiu Ping Lin

Department of Computer Science and Information Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Data stored on centralized cloud servers may have some risks. Moreover, it may leak the data access pattern when accessing data on cloud servers. Oblivious RAM (ORAM) is a candidate solution to hide the data access pattern, but it inherently induces some overheads of accessing data. In this paper, we address the issues above, and propose the oblivious access system on decentralized database over parallel smart contract model. The proposed system can slightly reduce the overhead of ORAM and overcome the problem from centralized servers. The main techniques are to use parallel smart contract model to improve the performance of smart contract execution and garbled circuit to reduce the cost of communication.

Original language	English
Title of host publication	Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020
Publisher	Association for Computing Machinery, Inc
Pages	895-897
Number of pages	3
ISBN (Electronic)	9781450367509
DOIs	https://doi.org/10.1145/3320269.3405436
State	Published - 5 Oct 2020
Event	15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020 - Virtual, Online, Taiwan Duration: 5 Oct 2020 → 9 Oct 2020

Publication series

Name	Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020

Conference

Conference	15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020
Country/Territory	Taiwan
City	Virtual, Online
Period	5/10/20 → 9/10/20

Bibliographical note

Publisher Copyright:
© 2020 Owner/Author.

Keywords

blockchain
garbled circuit
oblivious ram
smart contract

Access to Document

10.1145/3320269.3405436

Cite this

Guo, Z. Y., Chen, Y. C., & Lin, H. P. (2020). POSTER: Oblivious Access System on Decentralized Database over Parallel Smart Contract Model. In Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020 (pp. 895-897). (Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020). Association for Computing Machinery, Inc. https://doi.org/10.1145/3320269.3405436

Guo, Zhong Yi ; Chen, Yu Chi ; Lin, Hsiu Ping. / POSTER : Oblivious Access System on Decentralized Database over Parallel Smart Contract Model. Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020. Association for Computing Machinery, Inc, 2020. pp. 895-897 (Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020).

@inproceedings{4daae7767f5647f2b95e83e895289467,

title = "POSTER: Oblivious Access System on Decentralized Database over Parallel Smart Contract Model",

abstract = "Data stored on centralized cloud servers may have some risks. Moreover, it may leak the data access pattern when accessing data on cloud servers. Oblivious RAM (ORAM) is a candidate solution to hide the data access pattern, but it inherently induces some overheads of accessing data. In this paper, we address the issues above, and propose the oblivious access system on decentralized database over parallel smart contract model. The proposed system can slightly reduce the overhead of ORAM and overcome the problem from centralized servers. The main techniques are to use parallel smart contract model to improve the performance of smart contract execution and garbled circuit to reduce the cost of communication.",

keywords = "blockchain, garbled circuit, oblivious ram, smart contract",

author = "Guo, \{Zhong Yi\} and Chen, \{Yu Chi\} and Lin, \{Hsiu Ping\}",

note = "Publisher Copyright: {\textcopyright} 2020 Owner/Author.; 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020 ; Conference date: 05-10-2020 Through 09-10-2020",

year = "2020",

month = oct,

day = "5",

doi = "10.1145/3320269.3405436",

language = "???core.languages.en\_GB???",

series = "Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020",

publisher = "Association for Computing Machinery, Inc",

pages = "895--897",

booktitle = "Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020",

}

Guo, ZY, Chen, YC & Lin, HP 2020, POSTER: Oblivious Access System on Decentralized Database over Parallel Smart Contract Model. in Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020. Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020, Association for Computing Machinery, Inc, pp. 895-897, 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020, Virtual, Online, Taiwan, 5/10/20. https://doi.org/10.1145/3320269.3405436

POSTER: Oblivious Access System on Decentralized Database over Parallel Smart Contract Model. / Guo, Zhong Yi; Chen, Yu Chi; Lin, Hsiu Ping.
Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020. Association for Computing Machinery, Inc, 2020. p. 895-897 (Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - POSTER

T2 - 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020

AU - Guo, Zhong Yi

AU - Chen, Yu Chi

AU - Lin, Hsiu Ping

PY - 2020/10/5

Y1 - 2020/10/5

N2 - Data stored on centralized cloud servers may have some risks. Moreover, it may leak the data access pattern when accessing data on cloud servers. Oblivious RAM (ORAM) is a candidate solution to hide the data access pattern, but it inherently induces some overheads of accessing data. In this paper, we address the issues above, and propose the oblivious access system on decentralized database over parallel smart contract model. The proposed system can slightly reduce the overhead of ORAM and overcome the problem from centralized servers. The main techniques are to use parallel smart contract model to improve the performance of smart contract execution and garbled circuit to reduce the cost of communication.

AB - Data stored on centralized cloud servers may have some risks. Moreover, it may leak the data access pattern when accessing data on cloud servers. Oblivious RAM (ORAM) is a candidate solution to hide the data access pattern, but it inherently induces some overheads of accessing data. In this paper, we address the issues above, and propose the oblivious access system on decentralized database over parallel smart contract model. The proposed system can slightly reduce the overhead of ORAM and overcome the problem from centralized servers. The main techniques are to use parallel smart contract model to improve the performance of smart contract execution and garbled circuit to reduce the cost of communication.

KW - blockchain

KW - garbled circuit

KW - oblivious ram

KW - smart contract

UR - https://www.scopus.com/pages/publications/85096404918

U2 - 10.1145/3320269.3405436

DO - 10.1145/3320269.3405436

M3 - ???researchoutput.researchoutputtypes.contributiontobookanthology.conference???

AN - SCOPUS:85096404918

T3 - Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020

SP - 895

EP - 897

BT - Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020

PB - Association for Computing Machinery, Inc

Y2 - 5 October 2020 through 9 October 2020

ER -

Guo ZY, Chen YC, Lin HP. POSTER: Oblivious Access System on Decentralized Database over Parallel Smart Contract Model. In Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020. Association for Computing Machinery, Inc. 2020. p. 895-897. (Proceedings of the 15th ACM Asia Conference on Computer and Communications Security, ASIA CCS 2020). doi: 10.1145/3320269.3405436

POSTER: Oblivious Access System on Decentralized Database over Parallel Smart Contract Model

Abstract

Publication series

Conference

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this