Types of Entropies and Divergences with Their Applications.

E.J. Madarro-Capó et al., in the paper [[3]] "Information Theory Based Evaluation of the RC4 Stream Cipher Outputs", presented a criterion, based on information theory, to measure the amount of average information provided by the sequences of outputs of the RC4 on the internal state. Entropy is an important concept in many fields related to communications. The HT <math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mi> </mi></semantics></math> ht -divergence is related to the difference between the weighted arithmetic mean and the geometric mean. [Extracted from the article]