MPROVED IMAGE STEGANOGRAPHY TECHNIQUE USING AES CRYPTOGRAPHY FOR DATA SECURITY
Keywords:
Image Steganography, Cryptography, AES, Information Security, PSNR, Stego-image, Secret keyAbstract
Security has become one of the most challenging aspect in our society. Security is required in every part
of the communication. For communication, the sender and receiver play an important role and transfer the data which is
very easy to access, so in order to secure the data cryptography was developed.[1] Here the sender utilizes encryption
algorithm for encoding the dataand recipient utilizes decoding algorithm for unscrambling the data. But as time goes it
became very easy for intruders to access the dataas they can break the code and access the data. So, here we developeda
new method that is combined approach of cryptography and steganography. Firstly, we used AES encryption algorithm
to encode the data after that the secret-text is converted to cipher-text and lastly, the receiver uses the new algorithm to
decode the data.[3] The contents obtained after doing so is secret and its existence is also hidden. This method is tested
and it is observed that it prevents steganalysis too as well as parameters like PSNR and MSE are also tested which gave
good results.
