Results 11 to 20 of about 342 (169)
Towards a Ring Analogue of the Leftover Hash Lemma [PDF]
Journal of Mathematical Cryptology, 2020 The leftover hash lemma (LHL) is used in the analysis of various lattice-based cryptosystems, such as the Regev and Dual-Regev encryption schemes as well as their leakage-resilient counterparts. The LHL does not hold in the ring setting, when the ring is
Dachman-Soled Dana +3 more
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Practical CCA2-Secure and Masked Ring-LWE Implementation
Transactions on Cryptographic Hardware and Embedded Systems, 2018 During the last years public-key encryption schemes based on the hardness of ring-LWE have gained significant popularity. For real-world security applications assuming strong adversary models, a number of practical issues still need to be addressed.
Tobias Oder +3 more
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Quantum-resilient and adaptive multi-region data aggregation for IoMT using zero-knowledge proofs and edge intelligence [PDF]
Scientific ReportsThe Internet of Medical Things (IoMT) transforms healthcare by enabling real-time monitoring of patient vitals, such as heart rate and glucose levels, but faces significant challenges in securing sensitive data against cyber threats and ensuring ...
Soufiane Ben Othman, Gyanendra Kumar
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A Blockchain Copyright Protection Scheme Based on CP-ABE Scheme with Policy Update [PDF]
SensorsAlthough the copyright protection schemes supported by blockchain have significantly changed traditional copyright data management, there are still some data security challenges that cannot be ignored, especially the secure access and controllable ...
Jian Jiang +3 more
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Reduction From Module-SIS to Ring-SIS Under Norm Constraint of Ring-SIS
IEEE Access, 2020 Lattice-based cryptographic scheme is constructed based on hard problems on a lattice such as the short integer solution (SIS) problem and the learning with error (LWE).
Zahyun Koo, Jong-Seon No, Young-Sik Kim
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A Masked Ring-LWE Implementation [PDF]
, 2015 Lattice-based cryptography has been proposed as a postquantum public-key cryptosystem. In this paper, we present a masked ring-LWE decryption implementation resistant to first-order side-channel attacks. Our solution has the peculiarity that the entire computation is performed in the masked domain.
Reparaz, Oscar +3 more
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A Toolkit for Ring-LWE Cryptography [PDF]
, 2013 Recent advances in lattice cryptography, mainly stemming from the development of ring-based primitives such as ring-LWE, have made it possible to design cryptographic schemes whose efficiency is competitive with that of more traditional number-theoretic ones, along with entirely new applications like fully homomorphic encryption.
Lyubashevsky, Vadim +2 more
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Towards an efficient LWE‐based fully homomorphic encryption scheme
IET Information Security, 2022 The security of most early fully homomorphic encryption schemes was based on the hardness of the Learning with Errors (LWE) problem. These schemes were inefficient in terms of per gate computations and public‐key size.
Uddipana Dowerah +1 more
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Ring-LWE in Polynomial Rings [PDF]
, 2012 The Ring-LWE problem, introduced by Lyubashevsky, Peikert, and Regev (Eurocrypt 2010), has been steadily finding many uses in numerous cryptographic applications. Still, the Ring-LWE problem defined in [LPR10] involves the fractional ideal R ∨, the dual of the ring R , which is the source of many theoretical and implementation technicalities. Until now,
Ducas, Léo, Durmus, Alain
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A framework for cryptographic problems from linear algebra
Journal of Mathematical Cryptology, 2020 We introduce a general framework encompassing the main hard problems emerging in lattice-based cryptography, which naturally includes the recently proposed Mersenne prime cryptosystem, but also problems coming from code-based cryptography.
Bootland Carl +3 more
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