Hiding Text in the Image Using LSB

Abstract

In the majority of defense and research institutions, they have to send and receive critical textual data with respect to weapon models, maps, and satellite information. If the textual data is transmitted in a normal way, it can be intercepted by hackers, and the imported data can be disclosed. To avoid this, data can be encoded under an image. It is a technique that includes a plain text and an image file. We will employ the cover image file and message, and then considered the cover image pixels. In that image, we will insert each secret text bit until the last secret text bit gets concealed under the image. Then we can transmit this image file to the client, who can decode the original text from the image using reverse process. There are several methods and algorithms in cyber security to conceal data, and each method is significant. The method applied to this study is Least Significant Bit (LSB). Information Security is the procedures and processes which are developed and apply for safeguarding print, electronic, or any other type of confidential, private and sensitive information or data from unauthorized use, utilization, misuse, revelation, destruction, alteration, or interference. Image hiding is the act of concealing data inside an image file. Thus, securing image data from unauthorized use is crucial. Image encryption is a key contributor in the area of information hiding. Image hiding or encryption techniques and algorithms vary from straightforward spatial domain techniques to more complex and robust frequency domain techniques.