Design and implementation multi level security system

Abstract EN

Today the security becomes an important issue of communication and the need of it information has become a necessity.

The proposed article provides a method encrypts text and hide it inside a digital image.

This article included many stages where the first stage reverse the plain text while in the second stage the text is encrypted using a Groth algorithm and third stage is hide the text inside digital image using the method of least significant bit where cipher text is spread inside bits of color bands (RGB)in a manner that does not affect on the final image, this method is considered more effective and ease in hiding process.