There are many ways we hide our data in computer some people use encryption tools like Truecrypt, some hide there files in folders , some use folder lock etc.”Steganography “ ,I cannot say it as a new concept but it different from others(mentioned above)and has a wide range of application. Here I will discuss few basics aspects of this technique with few freeware tools for Windows OS available online
Steganography is the art of hiding data or message in another file invisible to a targeted mass of people .Mostly people have a wrong concept that steganography is related to images only ie. hiding messages in images only but actually that is not the case it can be done in other file formats also .We can also hide .RAR file in .DOCX formats etc.
Carrier file(Size:23kb) + Message = Stego File(Size:More than 23kb)
As mentioned above “Carrier file” is the file where we can hide the message or data ,after that as you can see above the size of the file has increased .
Applications of Steganography
- This techniques is believed to be used by terrorists for sending confidential messages.
- Used by intelligence agencies for sending confidential data.
- Used by some website owners for marking there images.
- Used in digital water marking images.
- Used in laser printers for hiding the serial no of printers.
Jphs_0.5.
Stegdetect_0.4
Mozaiq Decrypt f
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