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Hiding and securing information is a basic demand
throughout humanity. People have used their own bodies,
languages, writings, etc. to provide this need. Steganography is
acknowledged by science and art that researches hiding
information methods. Steganography consists of two element
basically that cover and secret information. In the past, people
used their bodies and poems, diaries for cover and used tattoo and
acrostic methods for secret information. In recently thanks to the
developments of technology, Steganography has widened its
methods and study areas. There are four Steganography methods
which are text, image, audio and video in computer science. All
types of Steganography methods have distinctive different ways to
hide information. But if we want to mention the most used ones,
we can say that changing characteristic of text (like color, font size)
in text Steganography and changing Least Significant Bit(LSB)
way for other types of Steganography methods. The LSB is a way
that we overwrite the LSB of each byte of the cover (image, video,
audio) with secret information binary representation. In our
project, we are developing an android mobile application that
allows user to hide a secret information inside any image. The
image can be captured instantly or selected from user gallery. We
are using LSB image Steganography method in order to hide
secret information in image. Beside this, we encrypt the secret
information with an encryption algorithm before inserting it in
image. At the end, user can save the result image for the future or
share with somebody who able to see the secret information only
with this application.
International Conference on Advanced Technologies, Computer Engineering and Science
ICATCES
Celalettin Misman
Mehmet Hacibeyoglu