Results 41 to 50 of about 18,370 (323)
Secure Outsourced Blockchain-Based Medical Data Sharing System Using Proxy Re-Encryption
Applied Sciences, 2021 The security and privacy of electronic health records (EHRs) have received considerable attention from healthcare workers and researchers. To ensure security, various encryption and decryption schemes as well as key management protocols have been ...
Young-Hoon Park +3 more
doaj +1 more source
Multi-Keyword Searchable Identity-Based Proxy Re-Encryption from Lattices
Mathematics, 2023 To protect the privacy of cloud data, encryption before uploading provides a solution. However, searching for target data in ciphertext takes effort. Therefore, searchable encryption has become an important research topic.
Er-Shuo Zhuang, Chun-I Fan
doaj +1 more source
Shared and Searchable Encrypted Data for Untrusted Servers [PDF]
, 2008 Current security mechanisms pose a risk for organisations that outsource their data management to untrusted servers. Encrypting and decrypting sensitive data at the client side is the normal approach in this situation but has high communication and ...
Dong, C +11 more
core +1 more source
Proxy Re-Encryption in Blockchain-based Application [PDF]
, 2022 Nowadays, blockchain-based technology has risen to a new dimension. With the advantage of the decentralized identity, data are transferred through decentralized and public ledgers. Those new contracts provide great visibility.
Yuan, Wangcheng
core +2 more sources
Chosen-Ciphertext Secure Certificateless Proxy Re-Encryption [PDF]
, 2010 International audienceIn this paper we introduce the notion of certificateless proxy re-encryption and also give precise definitions for secure certificateless proxy re-encryption schemes.
Rhee, Kyung Hyune +7 more
core +1 more source
Chosen-ciphertext secure proxy re-encryption [PDF]
Proceedings of the 14th ACM conference on Computer and communications security, 2007 In a proxy re-encryption (PRE) scheme, a proxy is given special information that allows it to translate a ciphertext under one key into a ciphertext of the same message under a different key. The proxy cannot, however, learn anything about the messages encrypted under either key.
Ran Canetti, Susan Hohenberger
openaire +2 more sources
DSAS: A Secure Data Sharing and Authorized Searchable Framework for e-Healthcare System
IEEE Access, 2022 In e-healthcare system, an increasing number of patients enjoy high-quality medical services by sharing encrypted personal healthcare records (PHRs) with doctors or medical research institutions. However, one of the important issues is that the encrypted
Linlin Xue
doaj +1 more source
Multi-key homomorphic proxy re-encryption scheme based on NTRU and its application
Tongxin xuebao, 2021 To improve the practicability of homomorphic encryption in the application of multi-user cloud computing, a NTRU-based multi-key homomorphic proxy re-encryption (MKH-PRE) scheme was constructed.Firstly, a new form of NTRU-based multi-key ciphertext was ...
Ruiqi LI, Chunfu JIA, Yafei WANG
doaj +2 more sources
Security scheduling and transaction mechanism of virtual power plants based on dual blockchains
Journal of Cloud Computing: Advances, Systems and Applications, 2022 Aiming at the data authenticity and storage problems in the current coordinated scheduling of virtual power plants, as well as the opaque information and high transaction costs, a dual blockchains security mechanism is proposed to solve above problems ...
Xiaohong Zhang +3 more
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Autonomous Path Identity-Based Broadcast Proxy Re-Encryption for Data Sharing in Clouds
IEEE Access, 2022 Cloud computing with massive storage and computing capabilities has become widespread in actual applications. It is critical to ensure secure data sharing in cloud-based applications.
Huidan Hu, Zhenfu Cao, Xiaolei Dong
doaj +1 more source