Steganography

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Term Paper Title	Steganography
# of Words	1471
# of Pages (250 words per page double spaced)	5.88

Steganography

[Category]:

Technology

[Paper Title]:

Steganography

[Text]:

I. INTRODUCTION

While Encryption is detectable and a target for questions by the government
as well as hackers, Steganography takes it one step further and hides the
message within an encrypted message or other mediums; such as images, making it
virtually impossible to detect. It is a method related to the art of hiding a
secret message within a larger one in such a way that the unwanted person cannot
make out the presence or contents of the hidden message being sent. It can be
hidden in a picture or a sound file.

Most communication channels like telephone lines and radio broadcasts
transmit signals, which are always followed by some kind of, noise. This noise
can be replaced by a secret signal that has been changed into a form that is not
detectable from noise without knowledge of a secret key and this way, the secret
signal can be transmitted undetectable. [1]

A. Purpose of this paper

The purpose of this paper is to introduce steganography by explaining what it
is and how it works in conjunction with cryptography; provide a brief history;
note on the types of software programs available and how effective they are.

B. Body

First, I will define stenography, along with cryptography and digital
watermarking. I will also discuss the differences between the two. Second, I
will discuss briefly the history of steganography. Finally, I will review
several different software applications available that provide steganography,
how they are implemented and discuss any failures that may occur.

C. Conclusion

I will review the topics, which were discussed and give my personal opinion
on a particular software programs that I tried out.

II. STEGANOGRAPHY

A. Definition

Steganography comes from the Greek word Steganos meaning covered or secret,
basically hidden writing. Steganography is a non-cryptographic technique for
hiding data in the natural noise component of some other signal. Steganography
simply takes one piece of information and hides it within another. It uses
computer files (images, sounds recordings, even disks) which contain unused or
insignificant areas of data. Invisible inks, microdots, character arrangement,
digital signatures, covert channels, and spread spectrum communications also use
Steganography. Steganography takes advantage of these areas, replacing them with
information (encrypted mail, for instance). The least significant bits (LSBs) of
most digitized ...

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