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Kit de ferramentas de segurança integrado para imagem by Samanta, Sabyasachi

Kit de ferramentas de segurança integrado para imagem

by Sabyasachi Samanta
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Book cover type: Paperback
  • ISBN13: 9786208096847
  • Binding: Paperback
  • Subject: N/A
  • Publisher: Edicoes Nosso Conhecimento
  • Publisher Imprint: Edicoes Nosso Conhecimento
  • Publication Date:
  • Pages: 72
  • Original Price: GBP 30.0
  • Language: Portuguese
  • Edition: N/A
  • Item Weight: 118 grams
  • BISAC Subject(s): General

A ocultação de informação significa confidencialidade, acesso não autorizado ao conteúdo e indisponibilidade. A esteganografia é a arte e a ciência que oculta qualquer informação através de um suporte de cobertura adequado, como imagem, texto, áudio e vídeo. A marca de água digital é um tipo de marcador, que é incorporado de forma oculta num sinal tolerante ao ruído, como a imagem, o áudio e o vídeo. É normalmente utilizada para identificar a propriedade dos direitos de autor. A criptografia é o método de conversão de texto simples em texto cifrado. A criptografia visual é também um tipo de técnica criptográfica que permite que a informação visual seja encriptada de forma a que a desencriptação possa ser efectuada pelo sistema visual humano sem a ajuda de computadores. Para uma comunicação segura através de meios de cobertura digital, a implementação em cascata da cifragem, da marca de água digital invisível/esteganografia e da criptografia visual pode constituir um dos melhores níveis de módulo de segurança no domínio da segurança da informação. A esteganálise é a capacidade e a ciência de detetar mensagens ocultas a partir de um meio de cobertura estego. Tenta encontrar mais informações no objeto estego, como o tipo de algoritmo de incorporação, o comprimento da mensagem, etc.

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