Analysis of the application of steganography applied in the field of cybersecurity

Abstract:

The image files have data areas that are not very important for the visualization of the corresponding image and, if these areas are changed or altered, the image does not have a perceptible visual change, therefore they can be used to hide information, having almost certainty that the image has not been altered. The least significant bit (LSB) method consists in replacing the last bit of each byte and can do it in several bytes at the same time and the image will not have a noticeable change. Each substituted bit is part of a letter of the message that you want to hide in the given image. In general, images with PGM extension are very useful to apply the technique (LSB) since they are images whose content is given without following some algorithm of compression; This means that the content of the file is more readable and easy to work since it is in the ascci format (US standard code for information …

Año de publicación:

2021

Keywords:

Fuente:

google