Amal Khalifa

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Research in the field of watermarking is flourishing providing techniques to protect copyright of intellectual property. Among the various methods that exploit the characteristics of the Human Visual System (HVS) for more secure and effective data hiding, wavelet-based watermarking techniques showed to be immune to attacks; adding the quality of robustness(More)
  • Amal Khalifa
  • 2013 8th International Conference on Computer…
  • 2013
A hybrid cryptosystem is itself a public-key system, whose public and private keys are the same as in the key encapsulation scheme. In this paper, DNA-steganography and cryptography are used together such that the key distribution process is improved without any sacrifice in security. That is, the session key is hidden inside a chosen DNA sequence and hence(More)
Digital Steganography exploits the use of a host data to hide a piece of information in such a way that it is imperceptible to a human observer. Wavelet transforms that map integers to integers allow perfect reconstruction of the original image. Hence, we proposed an algorithm that embeds the message bitstream into the LSB's of the integer wavelet(More)
Copyright protection techniques are in great demand due to the widespread illegal copying and communication of digital media. Due to their popularity, various watermarking methods have been proposed lately for digital images. Wavelet-based embedding techniques gained a lot of attention since they provide the perfect balance between imperceptibility and(More)
In this paper, a framework to hide privacy in video is proposed based on data hiding principals. A novel data hiding technique is proposed and implemented to hide the original frame into the in-painted one. The proposed hiding technique is carried out in the discrete wavelet transform domain of the cover video. The proposed technique is embedding video into(More)
DNA watermarking is a data hiding technique that aims to protect the copyright of DNA sequences and ensures the security of private genetic information. In this paper, we proposed a novel DNA watermarking technique that can be used to embed binary bits into real DNA sequences. The proposed technique mutates the codon postfix according to the embedded bit.(More)
Steganography is the field of research that provides innovative solutions to the problem of secure data communication. In this paper, a non-blind data hiding technique is proposed which is based on data fusion between both the cover and the secret images. The proposed embedding process is made in the Discrete Cosine Transform (DCT) domain of the cover(More)
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