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  • Online Resource  (3)
  • Hindawi Limited  (3)
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  • Online Resource  (3)
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  • Hindawi Limited  (3)
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  • 1
    Online Resource
    Online Resource
    Enhancing the Security of Customer Data in Cloud Environments Using a Novel Digital Fingerprinting Technique
    Hindawi Limited ; 2016
    In:  International Journal of Digital Multimedia Broadcasting Vol. 2016 ( 2016), p. 1-6
    Details
    In: International Journal of Digital Multimedia Broadcasting, Hindawi Limited, Vol. 2016 ( 2016), p. 1-6
    Abstract: With the rapid rise of the Internet and electronics in people’s life, the data related to it has also undergone a mammoth increase in magnitude. The data which is stored in the cloud can be sensitive and at times needs a proper file storage system with a tough security algorithm. Whereas cloud is an open shareable elastic environment, it needs impenetrable and airtight security. This paper deals with furnishing a secure storage system for the above-mentioned purpose in the cloud. To become eligible to store data a user has to register with the cloud database. This prevents unauthorized access. The files stored in the cloud are encrypted with RSA algorithm and digital fingerprint for the same has been generated through MD5 message digest before storage. The RSA provides unreadability of data to anyone without the private key. MD5 makes it impossible for any changes on data to go unnoticed. After the application of RSA and MD5 before storage, the data becomes resistant to access or modifications by any third party and to intruders of cloud storage system. This application is tested in Amazon Elastic Compute Cloud Web Services.
    Type of Medium: Online Resource
    ISSN: 1687-7578 , 1687-7586
    URL: Article
    DOI: 10.1155/2016/8789397
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2016
    detail.hit.zdb_id: 2448904-9
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Stego on FPGA: An IWT Approach
    Hindawi Limited ; 2014
    In:  The Scientific World Journal Vol. 2014 ( 2014), p. 1-9
    Details
    In: The Scientific World Journal, Hindawi Limited, Vol. 2014 ( 2014), p. 1-9
    Abstract: A reconfigurable hardware architecture for the implementation of integer wavelet transform (IWT) based adaptive random image steganography algorithm is proposed. The Haar-IWT was used to separate the subbands namely, LL, LH, HL, and HH, from 8 × 8 pixel blocks and the encrypted secret data is hidden in the LH, HL, and HH blocks using Moore and Hilbert space filling curve (SFC) scan patterns. Either Moore or Hilbert SFC was chosen for hiding the encrypted data in LH, HL, and HH coefficients, whichever produces the lowest mean square error (MSE) and the highest peak signal-to-noise ratio (PSNR). The fixated random walk’s verdict of all blocks is registered which is nothing but the furtive key. Our system took 1.6 µs for embedding the data in coefficient blocks and consumed 34% of the logic elements, 22% of the dedicated logic register, and 2% of the embedded multiplier on Cyclone II field programmable gate array (FPGA).
    Type of Medium: Online Resource
    ISSN: 2356-6140 , 1537-744X
    URL: Article
    DOI: 10.1155/2014/192512
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2014
    detail.hit.zdb_id: 2075968-X
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  • 3
    Online Resource
    Online Resource
    A Graph Theory Practice on Transformed Image: A Random Image Steganography
    Hindawi Limited ; 2013
    In:  The Scientific World Journal Vol. 2013 ( 2013), p. 1-7
    Details
    In: The Scientific World Journal, Hindawi Limited, Vol. 2013 ( 2013), p. 1-7
    Abstract: Modern day information age is enriched with the advanced network communication expertise but unfortunately at the same time encounters infinite security issues when dealing with secret and/or private information. The storage and transmission of the secret information become highly essential and have led to a deluge of research in this field. In this paper, an optimistic effort has been taken to combine graceful graph along with integer wavelet transform (IWT) to implement random image steganography for secure communication. The implementation part begins with the conversion of cover image into wavelet coefficients through IWT and is followed by embedding secret image in the randomly selected coefficients through graph theory. Finally stegoimage is obtained by applying inverse IWT. This method provides a maximum of 44 dB peak signal to noise ratio (PSNR) for 266646 bits. Thus, the proposed method gives high imperceptibility through high PSNR value and high embedding capacity in the cover image due to adaptive embedding scheme and high robustness against blind attack through graph theoretic random selection of coefficients.
    Type of Medium: Online Resource
    ISSN: 1537-744X
    URL: Article
    DOI: 10.1155/2013/464107
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2013
    detail.hit.zdb_id: 2075968-X
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    Online Resource
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