Security of digital images through a steganographic algorithm in the domain of frequency (Original)
Keywords:
Steganographic algorithm; frequency domain; digital images; security.Abstract
Nowadays, the society requires that its information, most of the times, confidential, be protected from any external agent not authorized to accede to it. For such a reason, mathematical and computer science techniques are being developed to impede that the perceptible information be acceded, modified, plagiarized or destroyed. In this work, a steganographic algorithm for the security of private and confidential information that transits for the different communication channels on the internet is presented. The proposed method is connected to the frequency domain, which uses a pair of keys of 64 bits, one public and one private, with the purpose of hiding the secret information in some coefficients of the low frequency components. Finally, an experimental analysis to measure the quality, imperceptibility and security of the steganographic system proposed is showed.
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References
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