|Code Listing by Francisco Echegorri|
The following programs hide a text file in an image of 256 colours encrypted disordering the characters and transforming it then into a group of pixels of colours.
To begin to write ocultext for encrypt to text file that this present in any portfolio of the computer. To recover uter. To write docultext. write doc
The following programs code an image disordering the pixels for columns and lines by means of an algorithm that generates a vector with aleatory order. They use for it a key of 56 bits.
Saveimage saves an existing image in format. mat(matriz) compressed as .zip. Loadimage recovers an image kept as a file of data. It allows to change the file to an image format.
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