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Multi-key Homomorphic Proxy Re-Encryption [PDF]
, 2018 In this paper, we propose a new notion of multi-key homomorphic proxy re-encryption (MH-PRE) in which inputs of homomorphic evaluation are encrypted by different public keys and the evaluated ciphertext is decrypted by a single secret key. We obtain it by adding the re-encryption property of proxy re-encryption to multi-key homomorphic encryption (MHE).
Satoshi Yasuda +3 more
core +4 more sources
Multi-key and Multi-input Predicate Encryption from Learning with Errors [PDF]
, 2023 We put forward two natural generalizations of predicate encryption (PE), dubbed multi-key and multi-input PE. More in details, our contributions are threefold. - Definitions. We formalize security of multi-key PE and multi-input PE following the standard indistinguishability paradigm, and modeling security both against malicious senders (i.e ...
Danilo Francati +3 more
core +7 more sources
On Multi-Key FuncCPA Secure Encryption Schemes [PDF]
2024 1st International Conference On Cryptography And Information Security (VCRIS)The notion of funcCPA security for homomorphic encryption schemes was introduced by Akavia \textit{et~al.}\ (TCC 2022). Whereas it aims to capture the bootstrapping technique in homomorphic encryption schemes, Dodis \textit{et~al.}\ (TCC 2023) pointed ...
Eri Nakajima +2 more
openaire +3 more sources
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General Multi-key Searchable Encryption
2015 IEEE 29th International Conference on Advanced Information Networking and Applications Workshops, 2015We analysis outsourced server with multi-users and classify the data sharing into two main types. We focus on the data sharing between users in Searchable Encryption and the corresponding security goal. Then we present a general scheme for Searchable Encryption in which the cipher text can be generated from parameter by authorized users.
Jun Yang 0032 +5 more
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Multi-Key Searchable Encryption with Designated Server
Intelligent Automation & Soft Computing, 2015AbstractThis paper presents a novel multi-key searchable encryption with designated server based on the RA Popa’s multi-key searchable encryption and Rhee’s PEKS. As far as we know, it is the first multi-key searchable encryption based on asymmetric cryptographic approach.
Yousheng Zhou +3 more
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Multi-key Searchable Encryption without Random Oracle
2014 International Conference on Intelligent Networking and Collaborative Systems, 2014Multi-Key Searchable Encryption (MKSE) is a new application scenario of searchable encryption, in which any user can search over all encrypted documents stored in untrusted server by submitting only one trapdoor. Firstly, we describe a general model of multi-key searchable encryption and introduce its system model and attack model.
Jun Yang 0032 +4 more
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Multi-Key Searchable Encryption, Revisited
2018We consider a setting where users store their encrypted documents on a remote server and can selectively share documents with each other. A user should be able to perform keyword searches over all the documents she has access to, including the ones that others shared with her. The contents of the documents, and the search queries, should remain private
Ariel Hamlin +3 more
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Multi key algorithm for performance enhancement of video encryption
2016 11th International Conference on Industrial and Information Systems (ICIIS), 2016Video compression and security both need to be emphasized for reliable and fast communication. This paper proposes an algorithm which emphasize both compression and security through the combination of Embedded Zero Wavelet (EZW) and chaotic logistic map.
Ch. Naveen +2 more
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Secure Generalized Deduplication via Multi-Key Revealing Encryption
2020Cloud Storage Providers (CSPs) offer solutions to relieve users from locally storing vast amounts of data, including personal and sensitive ones. While users may desire to retain some privacy on the data they outsource, CSPs are interested in reducing the total storage space by employing compression techniques such as deduplication.
Daniel E. Lucani +4 more
openaire +3 more sources