Results 41 to 50 of about 14,997,530 (270)

Leveled Certificateless Fully Homomorphic Encryption Schemes From Learning With Errors

open access: yesIEEE Access, 2020
Fully homomorphic encryption (FHE) is a form of public-key encryption that allows the computation of arbitrary functions on encrypted data without decrypting the data. As a result, it is a useful tool with numerous applications.
Mingxiang Li
doaj   +1 more source

A New Certificateless Aggregate Signature Scheme [PDF]

open access: yesJisuanji gongcheng, 2017
On the basis of the certificateless short signature,this paper proposes a certificateless aggregate signature scheme in resource constrained environment.A signature protocol is initiated by the specified aggregator.The state information including random ...
CAO Suzhen,DAI Wenjie,SUN Han,WANG Xiuya
doaj   +1 more source

Certificateless signature scheme without random oracles

open access: yesTongxin xuebao, 2015
The security of certificateless signature schemes can be proved under the random oracle model.However,any implementation of the random oracle may result in insecure schemes.Some certificateless signature schemes without random oracles are not secure ...
Yan-qiong LI, Ji-guo LI, Yi-chen ZHANG
doaj   +2 more sources

Security of discrete log cryptosystems in the random oracle and the generic model [PDF]

open access: yes, 1999
We introduce novel security proofs that use combinatorial counting arguments rather than reductions to the discrete logarithm or to the Diffie-Hellman problem. Our security results are sharp and clean with no polynomial reduction times involved.
Jakobsson, Markus, Schnorr, Claus Peter
core  

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

open access: yesAdvanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena   +3 more
wiley   +1 more source

Oracle inequalities for weighted group lasso in high-dimensional misspecified Cox models

open access: yesJournal of Inequalities and Applications, 2020
We study the nonasymptotic properties of a general norm penalized estimator, which include Lasso, weighted Lasso, and group Lasso as special cases, for sparse high-dimensional misspecified Cox models with time-dependent covariates.
Yijun Xiao   +3 more
doaj   +1 more source

A Secure User Authentication Protocol for Heterogeneous Mobile Environments

open access: yesIEEE Access, 2022
Mobile devices have become very important for our daily needs. The user authentication protocols with the key agreement are required to deal with the security issues that arise from the use of mobile devices through Internet applications.
Alzubair Hassan   +7 more
doaj   +1 more source

Non Observability in the Random Oracle Model [PDF]

open access: yes, 2012
The Random Oracle Model, introduced by Bellare and Rogaway, provides a method to heuristically argue about the security of cryptographic primitives and protocols.
Prabhanjan Ananth, Raghav Bhaskar
core  

Introducing Borsantrazole: A Trifunctional Boron‐Based Pyrazole That Extends the Lifespan of Amyotrophic Lateral Sclerosis Mice

open access: yesAdvanced Science, EarlyView.
Herein we report a boron‐based pyrazole, (Borsantrazole ‐ a small molecule that selectively targets oxidative stress) that significantly increases survival, reduces weight loss, delays disease onset, and affects global protein changes in the SOD1‐G37R mouse model of ALS.
Nitesh Sanghai   +9 more
wiley   +1 more source

A Machine-Checked Formalization of the Random Oracle Model [PDF]

open access: yes, 2006
Most approaches to the formal analysis of cryptography protocols make the perfect cryptographic assumption, which entails for example that there is no way to obtain knowledge about the plaintext pertaining to a ciphertext without knowing the key. Ideally, one would prefer to abandon the perfect cryptography hypothesis and reason about the computational
Gilles Barthe, Sabrina Tarento
openaire   +2 more sources

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