SOREL: Efficient and Secure ORE-based Range Query over Outsourced Data

2021 ◽  
pp. 1-1
Author(s):  
Songnian Zhang ◽  
Suprio Ray ◽  
Rongxing Lu
Keyword(s):  
Range Query ◽  
Outsourced Data

Cryptographic Tree and Its Key Management for Securing Outsourced Data in the Cloud

2017 ◽  
Vol 7 (5) ◽  
pp. 255-259
Author(s):  
Vairaprakash Gurusamy ◽  
◽  
S. Kannan ◽  
T. Maria Mahajan ◽  
◽  
...  
Keyword(s):  
Key Management ◽  
Outsourced Data

A Survey on Privacy-Preserving Outsourced Data on Cloud with Multiple Data Providers

2020 ◽  
Author(s):  
Aman Singh Chauhan ◽  
Dikshika Rani ◽  
Akash Kumar ◽  
Rishabh Gupta ◽  
Ashutosh Kumar Singh
Keyword(s):  
Privacy Preserving ◽  
Multiple Data ◽  
Outsourced Data

Location Privacy-Preserving Task Recommendation with Geometric Range Query in Mobile Crowdsensing

2021 ◽  
pp. 1-1
Author(s):  
Chuan Zhang ◽  
Liehuang Zhu ◽  
Chang Xu ◽  
Jianbing Ni ◽  
Cheng Huang ◽  
...  
Keyword(s):  
Location Privacy ◽  
Range Query ◽  
Privacy Preserving ◽  
Mobile Crowdsensing

scholarly journals What If Keys Are Leaked? towards Practical and Secure Re-Encryption in Deduplication-Based Cloud Storage

Information ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 142
Author(s):  
Weijing You ◽  
Lei Lei ◽  
Bo Chen ◽  
Limin Liu
Keyword(s):  
Experimental Evaluation ◽  
Cloud Storage ◽  
Security Analysis ◽  
Encrypted Data ◽  
Cloud Data ◽  
Storage Cost ◽  
Outsourced Data ◽  
Proof Of Ownership ◽  
Client Side ◽  
Over Time

By only storing a unique copy of duplicate data possessed by different data owners, deduplication can significantly reduce storage cost, and hence is used broadly in public clouds. When combining with confidentiality, deduplication will become problematic as encryption performed by different data owners may differentiate identical data which may then become not deduplicable. The Message-Locked Encryption (MLE) is thus utilized to derive the same encryption key for the identical data, by which the encrypted data are still deduplicable after being encrypted by different data owners. As keys may be leaked over time, re-encrypting outsourced data is of paramount importance to ensure continuous confidentiality, which, however, has not been well addressed in the literature. In this paper, we design SEDER, a SEcure client-side Deduplication system enabling Efficient Re-encryption for cloud storage by (1) leveraging all-or-nothing transform (AONT), (2) designing a new delegated re-encryption (DRE), and (3) proposing a new proof of ownership scheme for encrypted cloud data (PoWC). Security analysis and experimental evaluation validate security and efficiency of SEDER, respectively.

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