Key Procedures

MAC Layer Key Hierarchies and Establishment Procedures

To achieve confidential communication channel between devices they must share a security association that defines the keys and algorithms used to secure the communication. In this paper, methods to create such security associations based on a pre-shared key used in WLAN and WiMedia’s UWB standards are discussed. The standards provide key agreement algorithms that operate on MAC layer based on a...

Optimal Key Ranking Procedures in a Statistical Cryptanalysis

Hypothesis tests have been used in the past as a tool in a cryptanalytic context. In this paper, we propose to use this paradigm and define a precise and sound statistical framework in order to optimally mix information on independent attacked subkey bits obtained from any kind of statistical cryptanalysis. In the context of linear cryptanalysis, we prove that the best mixing paradigm consists ...

New Randomized Response Procedures

This article focuses on the estimation of population proportion when the study variable is sensitive in nature. Two implicit randomized response techniques are proposed where the unrelated trait can be chosen subjectively. In addition to unbiased estimation of population proportion and variance, an empirical study is conducted to inspect the relative efficiency facet of the proposed techniques....

Evaluating the Effect of Ownership Status on Hospital Quality: The Key Role of Innovative Procedures

Evaluating the Effect of Ownership Status on Hospital Quality: The Key Role of Innovative Procedures Mortality differences between university, non-teaching public and for-profit hospitals are investigated using a French exhaustive administrative dataset on patients admitted for heart attack. Our results show that innovative procedures play a key role in explaining the effect of ownership status...

Certification Authorities in a Global Network - Procedures and Guidelines for a Public Key Infrastructure