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Título: | Graphic cryptography with pseudorandom bit generators and cellular automata |
Autor: | Álvarez Marañón, Gonzalo CSIC ORCID; Hernández Encinas, Luis CSIC ORCID ; Hernández Encinas, Ascensión; Martín del Rey, Ángel; Rodríguez Sánchez, Gerardo | Fecha de publicación: | 2003 | Citación: | Lect. Notes Comput. Sci. | Serie: | 2773 1207-1214 |
Resumen: | In this paper we propose a new graphic symmetrical cryptosystem in order to encrypt a colored image defined by pixels and by any number of colors. This cryptosystem is based on a reversible bidimensional cellular automaton and uses a pseudorandom bit generator. As the key of the cryptosystem is the seed of the pseudorandom bit generator, the latter has to be cryptographically secure. Moreover, the recovered image from the ciphered image has not loss of resolution and the ratio between the ciphered image and the original one, i.e., the factor expansion of the cryptosystem, is $1$. | URI: | http://hdl.handle.net/10261/21266 |
Aparece en las colecciones: | (IFA) Artículos |
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graphicrypto.pdf | 629,14 kB | Adobe PDF | Visualizar/Abrir |
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