Results 31 to 40 of about 1,131 (250)
Unidirectional Chosen-Ciphertext Secure Proxy Re-Encryption [PDF]
IEEE Transactions on Information Theory, 2008 In 1998, Blaze, Bleumer and Strauss introduced a cryptographic primitive called proxy re-encryption in which a proxy can transform-without seeing the plaintext-a ciphertext encrypted under one key into an encryption of the same plaintext under another key. The concept has recently drawn renewed interest.
Libert, Benoit, Vergnaud, Damien
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A Single Re-encryption key based Conditional Proxy Re-Encryption Scheme [PDF]
Journal of the Korea Institute of Information Security and Cryptology, 2013 Proxy re-encryption scheme has advantage where plaintext does not get exposed during re-encryption process. This scheme is popular for sharing server-saved data in case of cloud computing or mobile office that uses server to save data. Since previous proxy re-encryption schemes can use re-encryption key over and over again, it may abuse re-encryption ...
Junggab Son, Heekuck Oh, SangJin Kim
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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
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Identity-Based Proxy Re-encryption [PDF]
, 2007 In a proxy re-encryption scheme a semi-trusted proxy converts a ciphertext for Alice into a ciphertext for Bob without seeing the underlying plaintext. A number of solutions have been proposed in the public-key setting. In this paper, we address the problem of Identity-Based proxy re-encryption, where ciphertexts are transformed from one identityto ...
Matthew Green, ATENIESE, GIUSEPPE
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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
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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
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Inter-domain Identity-Based Proxy Re-encryption [PDF]
, 2009 Proxy re-encryption is a cryptographic primitive developed to delegate the decryption right from one party (the delegator) to another (the delegatee). So far, research efforts have only been devoted to the intra-domain setting, where the delegator and the delegatee are registered in the same domain. In this paper, we investigate the proxy re-encryption
Tang, Qiang +2 more
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Resplittable threshold multi-broker proxy re-encryption scheme from lattices
Tongxin xuebao, 2017 Two different encryption schemes and Lagrange polynomial were used to construct a resplittable threshold multi-broker proxy re-encryption scheme on the lattice,namely the encryption in the ciphertext input and output side was different from the ...
Ju-yan LI, Chun-guang MA, Qian ZHAO
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A Blockchain-Based Efficient and Verifiable Attribute-Based Proxy Re-Encryption Cloud Sharing Scheme
Information, 2023 When choosing a third-party cloud storage platform, the confidentiality of data should be the primary concern. To address the issue of one-to-many access control during data sharing, it is important to encrypt data with an access policy that enables fine-
Tao Feng, Dewei Wang, Renbin Gong
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