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Protocolo para transferência parcial de conhecimento e sua aplicação à verificação segura de marcas d'água

Raphael Carlos Santos MachadoDavidson Rodrigo BoccardoVinícius Gusmão Pereira de SáJayme Luiz Szwarcfiter

Let y = f(x) for some one-way function f. We present a simple algorithm that allows that the bits of x are but partially exhibited in a demonstration, through a zero-knowledge proof scheme, that x is indeed an element of the preimage of y under f. As an application, we show that it is possible to disclose a watermark embedded into a digital artifact without the need of revealing its location. The result is a secure verification protocol for software watermarking which does not increase the likelihood that an attacker is successful in a removal attack.

http://www.lbd.dcc.ufmg.br/colecoes/sbseg/2014/002.pdf

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Biblioteca Digital Brasileira de Computação - Contato: bdbcomp@lbd.dcc.ufmg.br
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