Homophonic Substitution
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. SubstituiÃÃo homofÃnica: aspectos teÃricos e prÃticos / Homophonic substitution: theoretical and practical aspects
This thesis has as main purposes: a) to review the information-theoretic treatment given to the GÃntherâs type of homophonic substitution, b) to propose improvements of this approach, c) to investigate the practical implementation of homophonic substitution systems, considering that the plaintext symbol probabilities are rational numbers. The concept of st
Publicado em: 2006
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2. CRYPTO-COMPRESSION PREFIX CODING / CODIFICAÇÃO LIVRE DE PREFIXO PARA CRIPTO-COMPRESSÃO
Data compression and encryption are essential features when digital data is stored or transmitted over insecure channels. Usually, we apply two sequential operations: first, we apply data compression to save disk space and to reduce transmission costs, and second, data encryption to provide confidentiality. This solution works fine for most applications, but
Publicado em: 2006
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3. Homophonic substitution
Anais da Academia Brasileira de Ciências. Publicado em: 2002-09