scholarly journals On the Generic Insecurity of the Full Domain Hash

2005 ◽  
pp. 449-466 ◽  
Author(s):  
Yevgeniy Dodis ◽  
Roberto Oliveira ◽  
Krzysztof Pietrzak
Keyword(s):  
Full Domain

Characterization of the core in full domain marriage problems

2014 ◽  
Vol 69 ◽  
pp. 34-42 ◽  
Author(s):  
Duygu Nizamogullari ◽  
İpek Özkal-Sanver
Keyword(s):  
The Core ◽  
Marriage Problems ◽  
Full Domain

MRFDA: Mapreduce based full-domain anonymization

2015 ◽  
pp. 1431-1436
Author(s):  
Qingqing Hu ◽  
Junqiang Liu ◽  
Yongsheng Wu ◽  
Shijian Xu ◽  
Mengtao Xu
Keyword(s):  
Full Domain

COMPARISON BETWEEN GLOBAL, CLASSICAL DOMAIN DECOMPOSITION AND LOCAL, SINGLE AND DOUBLE COLLOCATION METHODS BASED ON RBF INTERPOLATION FOR SOLVING CONVECTION-DIFFUSION EQUATION

2008 ◽  
Vol 19 (11) ◽  
pp. 1737-1751 ◽  
Author(s):  
GAIL GUTIERREZ ◽  
WHADY FLOREZ
Keyword(s):  
Diffusion Equation ◽  
Domain Decomposition ◽  
Mixed Boundary ◽  
Domain Decomposition Method ◽  
Collocation Methods ◽  
Special Treatment ◽  
Convection Diffusion ◽  
Convection Diffusion Equation ◽  
Full Domain ◽  
Diffusion Problems

This work presents a performance comparison of several meshless RBF formulations for convection-diffusion equation with moderate-to-high Peclet number regimes. For the solution of convection-diffusion problems, several comparisons between global (full-domain) meshless RBF methods and mesh-based methods have been presented in the literature. However, in depth studies between new local RBF collocation methods and full-domain symmetric RBF collocation methods are not reported yet. The RBF formulations included: global symmetric method, symmetric double boundary collocation method, additive Schwarz domain decomposition method (DDM) when it is incorporated into two anterior approaches, and local single and double collocation methods. It can be found that the accuracy of solutions deteriorates as Pe increases, if no special treatment is used. From the numerical tests, it seems that the local methods, especially the derived double collocation technique incorporating PDE operator, are more effective than full domain approaches even with iterative DDM in solving moderate-to-high Pe convection-diffusion problems subject to mixed boundary conditions.

Optimal Security Proofs for Full Domain Hash, Revisited

2017 ◽  
Vol 31 (1) ◽  
pp. 276-306 ◽  
Author(s):  
Saqib A. Kakvi ◽  
Eike Kiltz
Keyword(s):  
Security Proofs ◽  
Full Domain

scholarly journals Eliminating turbulent self-interaction through the parallel boundary condition in local gyrokinetic simulations

2020 ◽  
Vol 86 (2) ◽  
Author(s):  
Justin Ball ◽  
Stephan Brunner ◽  
Ajay C.J.
Keyword(s):  
Boundary Condition ◽  
Heat Flux ◽  
Correlation Length ◽  
Statistical Properties ◽  
Base Case ◽  
Magnetic Shear ◽  
Turbulent Eddies ◽  
Simulation Domain ◽  
Gyrokinetic Simulations ◽  
Full Domain

In this work, we highlight an issue that may reduce the accuracy of many local nonlinear gyrokinetic simulations – turbulent self-interaction through the parallel boundary condition. Given a sufficiently long parallel correlation length, individual turbulent eddies can span the full domain and ‘bite their own tails’, thereby altering their statistical properties. Such self-interaction is only modelled accurately when the simulation domain corresponds to a full flux surface, otherwise it is artificially strong. For Cyclone Base Case parameters and typical domain sizes, we find that this mechanism modifies the heat flux by approximately 40 % and it can be even more important. The effect is largest when using kinetic electrons, low magnetic shear and strong turbulence drive (i.e. steep background gradients). It is found that parallel self-interaction can be eliminated by increasing the parallel length and/or the binormal width of the simulation domain until convergence is achieved.

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