Nuevo Algoritmo Criptográfico con la incorporación de la esteganografía en imágenes.

Abstract

The research paper "New cryptographic algorithm with the addition of steganography in images", integrates two security-related fields: cryptography and steganography in order to increase the information security, the first encrypts the message and the second hides message after a multimedia environment. The indicators considered in the variables were compared and descriptive and inferential statistics to demonstrate the hypothesis was applied. The software used for the research was: NetBeans development environment, FlexHEX to compare the hexadecimal code of the images, Image Guiffy Diff to compare differences between images pixel by pixel and Cyptool which allowed testing of cryptanalysis. The cryptographic algorithm was selected as the basis AES (Advanced Encryption Standard), according to the study based on comparison parameters and for the steganographic technique images the LSB (Least Significant Bit) technique was selected. It was developed, implemented and compared the results obtained by analyzing the characteristics of algorithms and running cryptanalysis to encrypted between Prototype II messages using the new cryptographic algorithm called 2NAES (2 new Advanced Encryption Standard) and the Prototype I using the AES algorithm base, to which were incorporated the images LSB steganographic technique. It is concluded that the new cryptographic algorithm 2NAES by incorporating the LSB technique, improved security by 52% compared to the AES cryptographic algorithm basis because the message is more diffuse. It is recommended to seek further amendments to the cryptographic algorithms and incorporate with steganographic techniques in order to improve safety.