A New Integration Scheme of Robust and Fragile for Secured Digital Watermarking

In this paper, a new integration scheme of robust and fragile for secured digital watermarking is developed and implemented. The proposed method uses symmetric encryption algorithm, error correcting code and random permutation to process the original watermark information, and then embeds it into the blue component of image in robust process. In fragile process, a session key and the red component of image are hashed, and then the hashed value is encrypted by using the receiver's public key, finally the encrypted message is embedded into the least significant bit (LSB) of the image. Our results have shown that the proposed scheme can resist white noise, cropping, median filter and JPEG compressing distortions, and can be used for image verification and identity authentication.