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MCSS
2007
Springer
13 years 4 months ago
Lyapunov functions for time-varying systems satisfying generalized conditions of Matrosov theorem
The classical Matrosov theorem concludes uniform asymptotic stability of time varying systems via a weak Lyapunov function (positive definite, decrescent, with negative semidefi...
Frédéric Mazenc, Dragan Nesic
ASIACRYPT
2000
Springer
13 years 9 months ago
Increasing the Lifetime of a Key: A Comparative Analysis of the Security of Re-keying Techniques
Rather than use a shared key directly to cryptographically process (e.g. encrypt or authenticate) data one can use it as a master key to derive subkeys, and use the subkeys for the...
Michel Abdalla, Mihir Bellare
AFRICACRYPT
2010
Springer
13 years 11 months ago
Flexible Group Key Exchange with On-demand Computation of Subgroup Keys
Modern multi-user communication systems, including popular instant messaging tools, social network platforms, and cooperative-work applications, offer flexible forms of communica...
Michel Abdalla, Céline Chevalier, Mark Manu...
IJNSEC
2008
98views more  IJNSEC 2008»
13 years 4 months ago
An Update on the Analysis and Design of NMAC and HMAC Functions
In this paper, we investigate the issues in the analysis and design of provably secure message authentication codes (MACs) Nested MAC (NMAC) and Hash based MAC (HMAC) proposed by ...
Praveen Gauravaram, Shoichi Hirose, Suganya Annadu...
SIAMSC
2008
140views more  SIAMSC 2008»
13 years 4 months ago
Compact Fourier Analysis for Designing Multigrid Methods
The convergence of Multigrid methods can be analyzed based on a Fourier analysis of the method or by proving certain inequalities that have to be fulfilled by the smoother and by t...
Thomas K. Huckle