Results 11 to 20 of about 1,291 (262)
Verifiable Inner Product Encryption Scheme [PDF]
, 2020 In the standard setting of functional encryption (FE), we assume both the Central Authority (CA) and the encryptors to run their respective algorithms faithfully. Badrinarayanan et al. [ASIACRYPT 2016] proposed the concept of verifiable FE, which essentially guarantees that dishonest encryptors and authorities, even when colluding together, are not ...
Soroush N. +4 more
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Decentralizing Inner-Product Functional Encryption [PDF]
, 2019 Multi-client functional encryption (MCFE) is a more flexible variant of Functional ENcryption whose functional decryption involves multiple ciphertexts from different parties. Each party holds a different secret key and can independently and adaptively be corrupted by the adversary.
Michel Abdalla +3 more
openaire +7 more sources
Function-Hiding Inner Product Encryption [PDF]
, 2015 We extend the reach of functional encryption schemes that are provably secure under simple assumptions against unbounded collusion to include function-hiding inner product schemes. Our scheme is a private key functional encryption scheme, where ciphertexts correspond to vectors $$\vec {x}$$, secret keys correspond to vectors $$\vec {y}$$, and a ...
Allison Bishop +2 more
core +5 more sources
Traceable Inner Product Functional Encryption [PDF]
, 2020 Functional Encryption (FE) has been widely studied in the last decade, as it provides a very useful tool for restricted access to sensitive data: from a ciphertext, it allows specific users to learn a function of the underlying plaintext. In practice, many users may be interested in the same function on the data, say the mean value of the inputs, for ...
Do, Xuan Thanh +2 more
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Unbounded Inner-Product Functional Encryption with Succinct Keys [PDF]
Lecture Notes in Computer Science, 2019 We define the Unbounded Inner-Product functionality in the context of Public-Key Functional Encryption, and introduce schemes that realize it under standard assumptions. In an Unbounded Inner-Product Functional Encryption scheme, a public key allows anyone to encrypt unbounded vectors, that are essentially mappings from N∗ to Zp.
David Pointcheval, Pointcheval David
exaly +5 more sources
Lightweight Multi-Class Support Vector Machine-Based Medical Diagnosis System with Privacy Preservation [PDF]
Sensors, 2023 Machine learning, powered by cloud servers, has found application in medical diagnosis, enhancing the capabilities of smart healthcare services. Research literature demonstrates that the support vector machine (SVM) consistently demonstrates remarkable ...
Sherif Abdelfattah +7 more
doaj +2 more sources
Practical Predicate Encryption for Inner Product [PDF]
Proceedings of the 17th International Joint Conference on e-Business and Telecommunications, 2020 Inner product encryption is a powerful cryptographic primitive, where a private key and a ciphertext are both associated with a predicate vector and an attribute vector, respectively.
Yi-Fan Tseng, Zi-Yuan Liu, Raylin Tso
openaire +3 more sources
The relation and transformation between hierarchical inner product encryption and spatial encryption [PDF]
Designs, Codes and Cryptography, 2012 Hierarchial inner product encryption (HIPE) and spatial encryption (SE) are two particular instantiations of functional encryption. In HIPE, a set of hierarchial key vectors \((\vec{v}_1, \dots, \vec{v}_r)\) can be used to obtain the plaintext \(m\) with index vecors \((\vec{x}_1, \dots \vec{x}_h)\) from a corresponding ciphertet if and only if \(r ...
Jie Chen 0021 +3 more
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Decentralized Multi-Client Functional Encryption for Inner Product [PDF]
, 2018 We consider a situation where multiple parties, owning data that have to be frequently updated, agree to share weighted sums of these data with some aggregator, but where they do not wish to reveal their individual data, and do not trust each other. We combine technique from Private Stream Aggregation (PSA) and Functional Encryption (FE), to introduce ...
Chotard, Jérémy +4 more
openaire +5 more sources
Inner product functional encryption based on the UOV scheme
Journal of Mathematical CryptologyWe analyze the efficiency and security of the inner product functional encryption (IPFE) protocol introduced in 2021 by Debnath, Mesnager, Dey, and Kundu, specifically when instantiated with UOV.
La Scala Roberto, Meneghetti Alessio
doaj +2 more sources