Efficient certificateless multi-copy integrity auditing scheme supporting data dynamics
To improve data availability and durability, cloud users would like to store multiple copies of their original files at servers. The multi-copy auditing technique is proposed to provide users with the assurance that multiple copies are actually stored in the cloud. However, most multi-replica soluti...
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sg-smu-ink.sis_research-82962022-09-29T07:41:51Z Efficient certificateless multi-copy integrity auditing scheme supporting data dynamics ZHOU, Lei FU, Anmin YANG, Guomin WANG, Huaqun ZHANG, Yuqing To improve data availability and durability, cloud users would like to store multiple copies of their original files at servers. The multi-copy auditing technique is proposed to provide users with the assurance that multiple copies are actually stored in the cloud. However, most multi-replica solutions rely on Public Key Infrastructure (PKI), which entails massive overhead of certificate computation and management. In this article, we propose an efficient multi-copy dynamic integrity auditing scheme by employing certificateless signatures (named MDSS), which gets rid of expensive certificate management overhead and avoids the key escrow problem in identity-based signatures. Specifically, we improve the classic Merkle Hash Tree (MHT) to achieve batch updates for multi-copy storage, which allows the communication overhead incurred for dynamics to be independent of the replica number. To meet the flexible storage requirement, we propose a variable replica number storage strategy, allowing users to determine the replica number for each block. Based on the fact that auditors may frame Cloud Storage Servers (CSSs), we use signature verification to prevent malicious auditors from framing honest CSSs. Finally, security analysis proves that our proposal is secure in the random oracle model. Analysis and simulation results show that our proposal is more efficient than current state-of-the-art schemes. 2022-03-01T08:00:00Z text application/pdf https://ink.library.smu.edu.sg/sis_research/7293 info:doi/10.1109/TDSC.2020.3013927 https://ink.library.smu.edu.sg/context/sis_research/article/8296/viewcontent/09158490.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Cloud storage integrity auditing multi-copy storage data dynamics Data Storage Systems Information Security |
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Cloud storage integrity auditing multi-copy storage data dynamics Data Storage Systems Information Security ZHOU, Lei FU, Anmin YANG, Guomin WANG, Huaqun ZHANG, Yuqing Efficient certificateless multi-copy integrity auditing scheme supporting data dynamics |
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To improve data availability and durability, cloud users would like to store multiple copies of their original files at servers. The multi-copy auditing technique is proposed to provide users with the assurance that multiple copies are actually stored in the cloud. However, most multi-replica solutions rely on Public Key Infrastructure (PKI), which entails massive overhead of certificate computation and management. In this article, we propose an efficient multi-copy dynamic integrity auditing scheme by employing certificateless signatures (named MDSS), which gets rid of expensive certificate management overhead and avoids the key escrow problem in identity-based signatures. Specifically, we improve the classic Merkle Hash Tree (MHT) to achieve batch updates for multi-copy storage, which allows the communication overhead incurred for dynamics to be independent of the replica number. To meet the flexible storage requirement, we propose a variable replica number storage strategy, allowing users to determine the replica number for each block. Based on the fact that auditors may frame Cloud Storage Servers (CSSs), we use signature verification to prevent malicious auditors from framing honest CSSs. Finally, security analysis proves that our proposal is secure in the random oracle model. Analysis and simulation results show that our proposal is more efficient than current state-of-the-art schemes. |
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text |
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ZHOU, Lei FU, Anmin YANG, Guomin WANG, Huaqun ZHANG, Yuqing |
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ZHOU, Lei FU, Anmin YANG, Guomin WANG, Huaqun ZHANG, Yuqing |
author_sort |
ZHOU, Lei |
title |
Efficient certificateless multi-copy integrity auditing scheme supporting data dynamics |
title_short |
Efficient certificateless multi-copy integrity auditing scheme supporting data dynamics |
title_full |
Efficient certificateless multi-copy integrity auditing scheme supporting data dynamics |
title_fullStr |
Efficient certificateless multi-copy integrity auditing scheme supporting data dynamics |
title_full_unstemmed |
Efficient certificateless multi-copy integrity auditing scheme supporting data dynamics |
title_sort |
efficient certificateless multi-copy integrity auditing scheme supporting data dynamics |
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Institutional Knowledge at Singapore Management University |
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2022 |
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https://ink.library.smu.edu.sg/sis_research/7293 https://ink.library.smu.edu.sg/context/sis_research/article/8296/viewcontent/09158490.pdf |
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