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Tuesday, February 16, 2010

Steganography : Hide in a JPEG/BMP

1. Steganography is the art and science of writing hidden messages in such a way that no one,apart from the sender and intended recipient, suspects the existence of the message, a form of security through obscurity while Cryptography is the practice and study of hiding information.

2. The advantage of steganography, over cryptography alone, is that messages do not attract attention to themselves. Plainly visible encrypted messages no matter how unbreakable will arouse suspicion,therefore, whereas cryptography protects the contents of a message,steganography can be said to protect both messages and communicating parties.

3. Just for how it works..i tried one free Steganography software "Invisible Secrets" that allows one to encrypt and hide files in other files (carriers) which are not suspect of encryption (JPG, PNG, BMP).The link I downloaded from can be accessed by clicking here.

4. Now this is a small 1.8 MB software good enough to do the job.The file u see below of golden temple is just not a jpeg,it consists of a text file with a message...the password to access the text file is 12_34....for those of u who r interested to experiment

5. The scope of utility involves provisioning solutions to the following queries of any user across :

(a) Are you afraid that someone else can see your sensitive and secret data stored on your computer ?
(b) Are you afraid that hackers or other people can penetrate your system and find your valuable information ?
(c) Your wife, boss and kids can see what you used the internet for?
(d) You have many passwords in your mind or spread all over your computer and you can't organize them?
(e) You want to send a secure email to your friend or partner and you want nobody to read or to access it?
(f) You want to password protect certain applications to be used only by you? Do you want them not to be visible in the Start Menu, but still have quick access to them?
(g) You want to delete an email or a file but you think someone else can restore it and use it against you ?
(h) You want to combine file encryption with steganography (hide files and folders) to better protect your documents and emails?
(j) You want to hide files on your computer so that nobody finds them?

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