03-12-2012, 02:04 PM
EMBEDDING THE SECURE DATA IN AN AUDIO/VIDEO AND IMAGE FILES
ABSTRACT
The purpose of our project is to enable the development of hiding the data and to encrypt the
data using cryptography. Steganography is the science of hiding information and the goal of
Steganography is to hide the data from a third party where as the goal of cryptography is to
make data unreadable by a third party.
But simply encrypting the data and transmitting it will cause suspension among the viewers so
in this project to avoid such suspension, the data is embedded into a picture and this innocent
looking picture is transmitted.
Existing System
Almost all digital file formats can be used for embedding data, but the formats that are more
suitable are those with a high degree of redundancy. Redundancy can be defined as the bits of
an object that provide accuracy far greater than necessary for the object’s use and display.
Hiding information in text is historically the most important method of embedding data. An
obvious method was to hide a secret message in every nth letter of every word of a text
message.
It is only since the beginning of the Internet and all the different digital file formats that is
decreased in importance. Text embedding data using digital files is not used very often since
text files have a very small amount of redundant data.
Given the proliferation of digital images, especially on the Internet, and given the large amount
of redundant bits present in the digital representation of an image, images are the most popular
cover objects for embedding data.
Proposed System
In the proposed system we can overcome the difficulties of the existing system. In our system
we are introducing all the three concept to secure the information which is send by the user.
The data/information which the sender wants to send will be encrypted and then if the
information is too bigger in size there is an option to compress the data using compression
technique and later that data/information is embedded in the audio/video or image files.