Communications and Multimedia Security

Chadwick, David; Decker, Bart De

doi:10.1007/978-3-642-32805-3

Cited by 5 publications

(1 citation statement)

References 13 publications

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“…Some joint encryption and datahiding algorithms were proposed in the literature. Schmitz et al proposed a commutative watermarking-encryption algorithm, 1 where Arnold's cat map is used to scramble the original image, so that the encrypted image keeps the global statistics of the original image, and then a histogram-based watermarking scheme is employed to embed the watermark in the encrypted domain. Bouslimi et al proposed a joint encryption/watermarking system to protect medical images.…”

Section: Introductionmentioning

confidence: 99%

Spread spectrum image data hiding in the encrypted discrete cosine transform coefficients

Zhang

Wang

2013

J. Electron. Imaging

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Digital watermarking and data hiding are important tools for digital rights protection of media data. Spread spectrum (SS)-based watermarking and data-hiding approaches are popular due to their outstanding robustness, but their security might not be sufficient. To improve the security of SS, a SS-based image data-hiding approach is proposed by encrypting the discrete cosine transform coefficients of the host image with the piecewise linear chaotic map, before the operation of watermark embedding. To evaluate the performance of the proposed approach, simulations and analyses of its robustness and security are carried out. The average bit-errorrate values on 100 real images from the Berkeley segmentation dataset under the JPEG compression, additive Gaussian noise, salt and pepper noise, and cropping attacks are reported. Experimental results show that the proposed approach can maintain the high robustness of traditional SS schemes and, meanwhile, also improve the security. The proposed approach can extend the key space of traditional SS schemes from 10 19 to 10 47 and thus can resist brute-force attack and unauthorized detection watermark attack.

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Section: Introductionmentioning

confidence: 99%