Authentication of Grey Level Images using a Watermarking Scheme
|International Journal of Computer Science and Engineering|
|© 2014 by SSRG - IJCSE Journal|
|Volume 1 Issue 1|
|Year of Publication : 2014|
|Authors : S.Balusamy|
S.Balusamy, "Authentication of Grey Level Images using a Watermarking Scheme" SSRG International Journal of Computer Science and Engineering 1.1 (2014): 1-5.
S.Balusamy, (2014). Authentication of Grey Level Images using a Watermarking Scheme. SSRG International Journal of Computer Science and Engineering 1.1, 1-5.
A watermark is a hidden signal added to images that can be detected or extracted later to make some affirmation about the host image. This research proposes a novel digital watermarking scheme to detect fraudulent attacks on an authenticated image committed by a malicious hacker. The proposed method can become aware of any visually significant alteration while maintaining good visual quality. The image is divided into two regions. In the first region authentication signature is embedded. The Authentication signature is obtained by calculating the hash value of the pixels in the second region. In the proposed algorithm security lies on the secrecy of the hash function and the key. Only its owner can insert the correct watermark while any one may verify the authenticity through the corresponding key. XOR based hashing technique had been proposed to maintain the security of the image while transmission. A possible application of the proposed technique is secured transmission of images through network.
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XOR, fraudulent attacks, Authentication signature