LabVIEW Implementation Of Optimized Algorithm For Hiding The Digital Text Message In A Image Through Key Based System

Abstract

From thousands of years back our predecessors have invented several ways of passing information in hidden form with other objects like papyrus scroll, cryptex etc. As decades crossed through earth's vein we are getting matured and invented several steganographic systems for message passing. The availability of internet in every corner of the universe forced the user of steganographic systems to invent and implement a better secured algorithm for encryption and decryption of text. Here framework will embed text string into digital colour images and the text that is embedded is perceptually invisible to Human Visual System (HVS). Many text steganographic systems are available that are passing the text with digital media as a form of message digest that can be hacked easily. Here this algorithm supersedes the conventional algorithms. Instead of forming message digest first a 32-bit secret key will be provided by the encrypter and that is applied on the text with a hash function. On the other end if an intruder tries to perform the extraction of the text with a wrong secret key, he will not be succeeded. In the proposed framework the information of Red (R), Green (G) & Blue (B) values of the pixels of the host colour image are retrieved.