Steganography : Steganography By
COMPUTER SCIENCE ANF ENGINEERING
RAAJDHANI ENGINEERING COLLEGE
BHUBANESWAR Content : Content 1.What is stegenograhy 2.Stegnograpgy terms 3.Stegnogarphy in modern days 4.Stegnography carrier files 5.Types of stegnography 6.Stegnography use 7.Stegnography tools 8.stegnolysis What is steganography ? : Steganography is the branch of science .it is used for writing hidden messages in such a way that no one can able to read the message only the sender and receiver can read. What is steganography ? Steganography
From the greek word STEGANOS meaning “covered
And greek word GRAPHIE meaning “writing” Steganography Terms : Carrier File – A file which has hidden information inside of it.
Steganalysis – The process of detecting hidden information inside of a file.
Stego-Medium – The medium in which the information is hidden. Steganography Terms Steganography – Modern Day : Steganography – Modern Day Steganography in the modern day sense of the word usually refers to information or a file that has
been concealed inside a digital Picture, Video or Audio file Steganography – Carrier Files : Steganography – Carrier Files Steganography Carrier Files
Bmp - bitmap digital images
Jpeg - Joint Photographic Experts Group
Gif - Graphics Interchange Format
Wav- Waveform Audio File Format
Mp3- music file
Amongst others… TYPE OF STEGNOGRAPHY : SECRET MESSAGE IS HIDDEN IN DIFFERENT FORM..
Steganography In Images
Steganography In Audio
Steganography In Video
Steganography In Documents TYPE OF STEGNOGRAPHY A steganograhy System : A steganograhy System Slide 9: 9 Steganography use The U.S. government is concerned about the use of Steganography.
Common uses in include the disguising of corporate intelligence.
It’s possible that terrorist cells may use it to secretly communicate information.
It’s also a very good Anti-forensics mechanism to mitigate the effectiveness of a forensics investigation What is stegnograpy tool ? : With the help of stenography tool .we can see the hidden message inside the picture ,audio,documents etc. What is stegnograpy tool ? Steganography Tools : Steganography Tools Steganography Tools
S-Tools (GIF, JPEG)
StegHide (WAV, BMP)
Invisible Secrets (JPEG)
Many others… Steganalysis : Identification of hidden files Steganalysis Steganalysis : By identifying the existence of a hidden message, perhaps we can identify the tools used to hide it.
If we identify the tool, perhaps we can use that tool to extract the original message. Steganalysis