【摘 要】
:
Evidence of signatures associated with cryptographic modes of operation is established in this work by relying on Lyapunov exponents for estimating the divergence among ciphertexts as the encryption a
【机 构】
:
Ghent Univ. Univ.of S(a)o Paulo
论文部分内容阅读
Evidence of signatures associated with cryptographic modes of operation is established in this work by relying on Lyapunov exponents for estimating the divergence among ciphertexts as the encryption algorithm is applied iteratively.Using our approach it turns out to be possible to discriminate between six modes of operation,namely ECB,CBC,OFB,CFB,CTR and PCBC,for different block ciphers,such as DES,IDEA,TEA,and others.
其他文献
近年来,多溴联苯醚(PBDEs)已成为大气、水体、土壤和生物体等多环境介质中普遍检出且极具生态风险的有机污染物而备受环境科学工作者的广泛关注.为消除或阻控PBDEs的生态环境污染风险,开展高效微生物降解及其相关分子调控机制研究,具有重要的科学意义和实践指导价值.其中,好氧微生物降解具有其高效、快速且降解较为彻底等特点,目前围绕PBDEs的降解研究已有多篇文献报道.
An approximate method is proposed for the solution of a more general class of Cauchy type singular integral equation of the first kind.The present method is illustrated through several examples of sin
We present in this work a numerical study of the square-root formulation which is a stabilization method for computing highly elastic flows of viscoelastic fluids.
In this paper,we report three level implicit method of high accuracy schemes of O(k4+h8),O(k6+h8)and O(k6+h10)for the numerical solution of fourth order non-homogeneous parabolic partial differential
The control of diffusion models is very well developed for uniformly parabolic operators,much less so for degenerate problems.In the latter case,a general theory which covers controllability/observabi
This mini-symposium will present an overview of recent advances on the control of PDEs and stochastic PDEs,as well as their challenging applicative issues for the control of complex models in quantum
In this talk,we give some necessary conditions,presented as criteria of Kalmans type,for the approximate null controllability,the approximate synchronization and the approximate synchronization by gro
Testing hypothesis of equality covariance matrix has been studied by researchers,either data or engaged in health economics.The usual method is the likelihood ratio and Wald statistics.The basic theor
A method of representation of the general analytical solution for equilibrium equations for transversally isotropic plates with initial stresses is presented.A method of expanding the unknown function
In this paper,the effect of the Lumped Mass Matrices(LMM)on the dynamic response of beams under uniformly distributed moving loads is investigated.The analysis was done by using finite element method.