2. INTRODUCTION
No one apart
from the
Art and A form of sender and
science of security intended
writing hidden through recipient,
messages obscurity suspects the
existence of
the message
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6. ADVANTAGE OF STEGANOGRAPHY
OVER CRYPTOGRAPHY
Messages do not
attract attention to Protects both
themselves messages and
communicating
parties
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7. TYPES OF STEGANOGRAPHY
Steganography In Text/Documents
Steganography In Video
Steganography In Audio
Steganography In Images
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8. Carrier or Cover File
Stego-Medium
Embedded or Payload
Steganalysis
STEGANOGRAPHY TERMS
19. Program Image files Audio files Video files Document
files
BMP, JPG, Mp3, WAV 3gp, Mp4, Pdf
PNG, TGA MPEG-1,
OpenPuff MPEG-2, VOB,
SWF, FLV
MP3Stego - Mp3 - -
OpenStego BMP, PNG - - -
S-Tools BMP, GIF Wav - -
StegFS - - - -
Steganographic BMP, PNG, - - -
Laboratory (VSL) JPG, TIFF
PHP-Class PNG - - -
StreamSteganography
List of some tools for Steganography
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20. USAGE IN MODERN PRINTERS
Tiny yellow dots are added to each page
Printer serial numbers date and time stamps
are encoded on yellow dots
EXAMPLE: HP and Xerox color laser printers.
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