ABSTRACT
The main objective is to improve the redundancy and security in data transferring. Data security is the most important concerned factor in the vast technical advancement. This technology knowledge made way for data-stealing techniques. Steganographic techniques act as a cover to mask the secretive information with some media. The hackers face difficulties too trace the information because it appears in the form of media rather than as information. The image, audio, or video can be a media file. To hide secret information in images, image steganography is used without seeking any attention of hackers; these images can be exchanged hiding secret information inside. To make it safer, the information is encrypted before being embedded. Images are decrypted with a proper algorithm along with a correct key at the receiver side. With the least amount of VLSI complexity possible, these steganographic techniques use the dual-coupled linear congruential generator (dual-CLGG) to generate bit sequences with high randomness qualities. Dual-CLCG is implemented separately in the triplet-RGB channels to make the information safer by converting it in PRB. It is used to generate a more secured random bit. Here the random bit is encrypted by bits to image encryption thereby security of the transferred data improves. The RWT algorithm is implemented to locate the exact place of the given input data. This involves encrypting the information and hiding it in the image and generating the PRB using the dual-CLCG algorithm. The location of the data, which is given as an input to the image is located using the RWT algorithm. Extracting information and decrypting is done at the receiver side.
