Conditional Renyi Entropies

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

teixeira, a (Autor) Outra; matos, a (Autor) Outra; antunes, l (Autor) FCUP

Revista

Título: IEEE Transactions on Information Theory

Vol. 58 Nº 4

Páginas: 4273-4277

ISSN: 0018-9448

Editora: IEEE

Indexação

ISI Web of Knowledge - 53 Citações

Scopus - 63 Citações

Outras Informações

ID Authenticus: P-002-8KE

DOI: 10.1109/tit.2012.2192713

Abstract (EN): There is no generally accepted definition of conditional Renyi entropy. The (unconditional) Renyi entropy depends on a parameter alpha, which for the case of min-entropy takes the value infinity. Even for this particular case, there are several proposals for the definition of conditional entropy. This paper describes three general definitions of conditional Renyi entropy that were found or suggested in the literature. Their properties are studied and their values, as a function of alpha, are compared. The particular case of min-entropy is widely used in cryptography as a security parameter; this case is studied in some detail.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5