Results 41 to 50 of about 730 (270)

Dynamic Volume-Hiding Encrypted Multi-Maps with Applications to Searchable Encryption

open access: yesProceedings on Privacy Enhancing Technologies, 2023
We study encrypted storage schemes where a client outsources data to an untrusted third-party server (such as a cloud storage provider) while maintaining the ability to privately query and dynamically update the data. We focus on encrypted multi-maps (EMMs), a structured encryption (STE) scheme that stores pairs of label and value tuples.
Amjad, Ghous   +4 more
openaire   +3 more sources

Database Padding for Dynamic Symmetric Searchable Encryption [PDF]

open access: yesSecurity and Communication Networks, 2021
Dynamic symmetric searchable encryption (DSSE) that enables the search and update of encrypted databases outsourced to cloud servers has recently received widespread attention for leakage-abuse attacks against DSSE. In this paper, we propose a dynamic database padding method to mitigate the threat of data leakage during the update operation of ...
Ruizhong Du, Yuqing Zhang, Mingyue Li
openaire   +1 more source

Blockchain-based healthcare management system with two-side verifiability.

open access: yesPLoS ONE, 2022
The lack of data outsourcing in healthcare management systems slows down the intercommunication and information sharing between different entities. A standard solution is outsourcing the electronic health record (EHR) to a cloud service provider (CSP ...
Tian Lim Tan   +2 more
doaj   +2 more sources

Towards efficient verifiable multi-keyword search over encrypted data based on blockchain [PDF]

open access: yesPeerJ Computer Science, 2022
Searchable symmetric encryption (SSE) provides an effective way to search encrypted data stored on untrusted servers. When the server is not trusted, it is indispensable to verify the results returned by it.
Wanshan Xu   +5 more
doaj   +2 more sources

Verifiable dynamic searchable encryption

open access: yesTURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES, 2019
Using regular encryption schemes to protect the privacy of the outsourced data implies that the client should sacrifice functionality for security. Searchable symmetric encryption (SSE) schemes encrypt the data in a way that the client can later search and selectively retrieve the required data. Many SSE schemes have been proposed, starting with static
Mohammad Etemad, Alptekin Küpçü
openaire   +4 more sources

Decentralized searchable encryption scheme based on dynamic accumulator

open access: yes网络与信息安全学报, 2019
Since the flourish of the blockchain technology, a series of applications based on blockchain technology are emerging, and the decentralized storage service becomes the killer App in the decentralized markets, such as StorJ, Filecoin.
ZHANG Yan, WANGJinfan, YANG Rongwei, WANG Yi   +1 more
doaj   +3 more sources

On the Practicality of Dynamic Updates in Fast Searchable Encryption

open access: yesCoRR, 2023
Searchable encrypted (SE) indexing systems are a useful tool for utilizing cloud services to store and manage sensitive information. However, much of the work on SE systems to date has remained theoretical. In order to make them of practical use, more work is needed to develop optimal protocols and working models for them. This includes, in particular,
openaire   +2 more sources

Achieving Secure and Efficient Dynamic Searchable Symmetric Encryption over Medical Cloud Data

open access: yes, 2021
© 2013 IEEE. In medical cloud computing, a patient can remotely outsource her medical data to the cloud server. In this case, only authorized doctors are allowed to access the data since the medical data is highly sensitive.
Xiang, Y, Li, H, Dai, Y, Yang, Y, Yu, S
core   +1 more source

Libertas: Backward Private Dynamic Searchable Symmetric Encryption Supporting Wildcards [PDF]

open access: yes, 2022
When outsourcing data, Searchable Symmetric Encryption (SSE) allows clients to query the server for their encrypted files without compromising data confidentiality.
Hahn, Florian   +3 more
core   +1 more source

IO-DSSE: Scaling Dynamic Searchable Encryption to Millions of Indexes By Improving Locality [PDF]

open access: yes, 2016
Free cloud-based services are powerful candidates for deploying ubiquitous encryption for messaging. In the case of email and increasingly chat, users expect the ability to store and search their messages persistently.
Payman Mohassel, Ian Miers
core   +1 more source

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