Abstract
To provide security in communication networks, various cryptographic and steganographic algorithms have been proposed. Cryptography converts the data into a form understood only by the receiver node whereas steganography hides the data behind a cover file; generally, an image file is used. To provide better security, the use of hybrid mechanisms has been proposed. In this paper, we try to combine visual cryptography coupled with DCT to provide better security for communication networks. The proposed technique is implemented in MATLAB-12, and the overheads of mixing the two mechanisms are evaluated using several performance metrics such as PSNR, Mean Square Error (MSE), time complexity and Mean Absolute Error (MAE) of the mechanism. The result shows that the proposed technique is far better in terms of security but with some overheads when compared to stand-alone technique DCT.
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Jain, Y., Sharma, G., Anand, G., Dhall, S. (2018). A Hybrid Security Mechanism Based on DCT and Visual Cryptography for Data Communication Networks. In: Bokhari, M., Agrawal, N., Saini, D. (eds) Cyber Security. Advances in Intelligent Systems and Computing, vol 729. Springer, Singapore. https://doi.org/10.1007/978-981-10-8536-9_14
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DOI: https://doi.org/10.1007/978-981-10-8536-9_14
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