Steganography is the art of hiding information in plain sight, and in this tutorial, I'll show you how to use Steghide — a very simple command line tool to do just that. In addition, I'll go over a bit of conceptual background to help you understand what's going on behind the scenes. This is a tool that's simple, configurable, and only takes a few seconds to hide information in many file types. What Is Steganography? Unlike encryption, where it's obvious that a message is being hidden, steganography hides data in plain view, inside a file such as a picture. As far as images are concerned, to anyone who isn't aware that it contains hidden data, it looks like just a normal, innocent picture. Steganography is useful in situations where sending encrypted messages might raise suspicion, such as in countries where free speech is suppressed. It's also frequently used as a digital watermark to find when images or audio files are stolen. And on a less practical note — it's just cool.

2. PRESENTED BY
Presented To
Teacher Name
University Name
Name 1
161-15-0000
Name 2
161-15-0001
Name 3
161-15-0002
Name 4
161-15-0003
Name 5
161-15-0004
Name 6
161-15-0005

3. WHAT IS STEGANOGRAPHY?
Steganography is data hidden within data.
Steganography is an encryption technique
that can be used along with cryptography as
an extra-secure method in which to protect
data.

4. MAIN CONCEPT OF STEGANOGRAPHY
Cover File
(image, video or audio)
Data to hide
(text, image, video, audio, etc.)
Stego
Application Stego File

5. TYPES OF STEGANOGRAPHY
Audio Steganography
Video Steganography
Text Steganography
Image Steganography

6. AUDIO STEGANOGRAPHY

7. VIDEO STEGANOGRAPHY

8. TEXT STEGANOGRAPHY

9. IMAGE STEGANOGRAPHY

10. Embedding
Process
Extracting
ProcessStego Image
TEXT/Massage
Stego key
TEXT/
Massage
|
|
|
SENDER RECEIVER
IMAGE STEGANOGRAPHY

11. PROGRAM IMAGE FILES AUDIO FILES VIDEO FILES DOCUMENT
FILES
Openpuff BMP,JPG,
PNG,TGA
Mp3, WAV 3gp, Mp4,
MPEG, VOB,
SWF,FLV
Pdf
MP3Stego - Mp3 - -
OpenStego BMP,PNG - - -
S-Tools BMO,GIF Wav - -
Steganographic
Labratory (VLS)
BMP,PNG,
JPG,TIFF
- - -
PHP-Class
Stream
Steganography
PNG - - -
TOOLS FOR STEGANOGRAPHY

12. LSB METHOD
ASCII Value for “h” in Decimal is 104 and Binary
01101000Before LSB Insertion of 8 consecutive bytes of an
image:
10000010 10100110 11110101 10110101
10110011 10010111 10000100 10110001
After inserting h (01101000) in Least Significant Bits:
0 1 1 0 1 0 0 0
100000100 101001101 111101011 101101010 101100111 100101110 100001000 101100010

13. ADVANTAGES
 It is used in the way of hiding not the information but the password
to reach that information.
 Difficult to detect. Only receiver can detect.
 Can be applied differently in digital image, audio and video file.
 It can be done faster with the large number of software's.

14. DISADVANTAGES
 Huge number of data, huge file size, so someone can
suspect about it.
 If this technique is gone in the wrong hands like hackers,
terrorist, criminals then this can be very much dangerous for
all.

15. Steganalys
is
DETECTING THE SECRET MESSAGE

16. CONCLUSION
 Though Steganography is not implemented in wider ways but it can
be the best security tool.
 The main problem of today’s world is to secure their data
confidentially, the techniques used currently are not considered the
best which can only be replaced by Steganography.

17. ANY QUESTION ? ? ?