Secure and Authentic DCT Image Steganography through DWT - SVD Based Digital Watermarking with RSA Encryption

Abstract

With the rapid advance in digital network, digital libraries, and particularly WWW (World Wide Web) services, we can retrieve many kinds of information anytime. Thus,security has become one of the most significant ptoblems for distributing new information.It is necessary to protect this information while communicated over insecure channels.Thus a need for developing technology that will help to provide security as well as authenticity.Steganography is the idea of hiding private or sensitive data or information within something that appears to be nothing out of the normal. Steganography and cryptography are similar in the way that they both are used to protect important information. Nowadays the term "Information Hiding" relates to both watermarking and steganography. So we proposed combined strategy of cryptography, steganography and digital watermarking to hide secure image with watermark logo inside cover image. For this purpose we use DCT, DWT, SVD and RSA approach. Using DCT, encrypted watermark logo (encryption perform using RSA) is hide inside Secure image, results in Stego image. This Stego image is hiding inside cover image using DWT and SVD. Our approach can be used to transmit secure information like copyright information of company, movie with their respective image, finger-print or thumb impression of particular person. This method can be used for security purpose. Thus would be beneficial to nation for over all security.

Crypto-Watermarking of Transmitted Medical Images

“…The three types often involve a tradeoff between imperceptibility, robustness, and capacity. The irreversible watermarking methods are lossy in nature as they introduce permanent alterations to the original images even after the extraction of the embedded watermarks [17][18][19]. Reversible methods, on the other hand, are lossless since they retain the original image after extracting the embedded watermarks [20][21][22][23][24][25].…”

QR Code Steganography for Multiple Image and Text Hiding using Improved RSA-3DWT Algorithm

“…This would be beneficial to nation for overall security. [1] Amitava Nag et. al., [13] presents a novel technique for Image steganography based on DWT.…”

“…It's a form of signal dispensation the place input is an image, like video body or picture and output would even be an image or characteristics involving that image. In image Processing approach pix are handled as two dimensional indicators at the same time applying already set sign processing ways to them [1].…”

A Good Performance OTP Encryption Image based on DCT-DWT Steganography

“…There are many popular cryptographic techniques such as Blowfish, DES, RSA, AES, and One Time Pad (OTP) [18][19][20]. OTP is the method that is processed per block and simplest compared to other methods.…”

“…Many such studies on [14][15][16][17][18], combine steganographic techniques with cryptography to enhance the security of secret messages. There are many popular cryptographic techniques such as Blowfish, DES, RSA, AES, and One Time Pad (OTP) [18][19][20].…”