Algoritmo esteganográfico pseudo-asimétrico basado en una tabla de cuantificación no estándar
Palabras clave:
Estaganografía, Pseudo-asimétrico, Matriz cuantizaciónResumen
En este artículo, se propone un novedoso método esteganográafico basado en la comprensión JPEG. El algoritmo esteganográfico propuesto inserta la información secreta en algunos coeficientes localizados en el área de las medias frecuencias de la imagen original (RGB), utilizando una nueva matriz de cuantificación distinta a la estándar. Por otro lado, el método propuesto utiliza una clave pública y otra privada, ambas de 128 bits, las cuales generan dos secuencias binarias que deciden respectivamente en qué bloque y qué posición se ocultará el mensaje secreto encriptado mediante el algoritmo criptográfico AES. Finalmente, presentamos un análisis experimental para la validación del método propuesto.
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