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Steganography deals with hiding of data in images and steganalysis reveals the presence of data and also the data. In this paper, we propose a steganography technique that is based on randomizing the sequence of cipher bits. We compute the suitability measure of the various random sequences of the cipher bits against a given image and select the random sequence closest to the image. We generate these...
This paper proposes an RGB-based, secure technique to maintain and authenticate the integrity of a document. The novel Steganographic algorithm that we have proposed has its strength greatly enhanced by use of hybrid cryptography on data that is to be hidden in cover image. The secret message is converted into two kinds of plaintexts by subsequent ASCII and binary conversions and suitable bit stuffing...
Image compression techniques such as Vector Quantization(VQ), Block Truncation Coding(BTC) and their hybrid methods, are widely used in many applications. Hiding secret data in image compression codes becomes necessary and attractive. In this paper, a data hiding approach in block truncation coding is presented. The proposed method hides secret data in compressed images by modifying the bitmaps generated...
In this paper, a technique for hiding the data of images using palette based approach with the concept of run length has been proposed. At the source, the image which is to be hidden (target image) is encoded within another image (cover image). Firstly, the cover image and the target image can be of any size which will be adjusted by our resize function thereby removing the size constraint. The final...
Side match vector quantization (SMVQ) is an image compression scheme that reduces the redundancy of a digital image. Some data hiding methods utilize SMVQ to embed secret data in an SMVQ-decompressed image, and reconstruct the original SMVQ code after the secret data have been extracted. This work proposes a data hiding scheme that embeds secret data in an SMVQ-decompressed image. A modulus function...
In today's information age, information sharing and transfer has increased exponentially. The threat of an intruder accessing secret information has been an ever existing concern for the data communication experts. Cryptography and steganography are the most widely used techniques to overcome this threat. Cryptography involves converting a message text into an unreadable cipher. On the other hand,...
Protecting privacy for exchanging information through the media has been a topic researched by many people. Up to now, cryptography has always had its ultimate role in protecting the secrecy between the sender and the intended receiver. However, nowadays steganography techniques are used increasingly besides cryptography to add more protective layer to the hidden data. In this letter, we show that...
This paper discusses the design of a robust image steganography technique based on LSB (least significant bit) insertion and RSA encryption technique. Steganography is the term used to describe the hiding of data in images to avoid detection by attackers. Steganalysis is the method used by attackers to determine if images have hidden data and to recover that data. The application discussed in this...
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