Steganography, or hiding messages inside plain sight, is a storied practice dating back to historic Greece. In contemporary practice, steganography signifies taking a media file including an MP3 or perhaps a jpeg image plus burying information inside it. The file nonetheless functions because normal, plus in the event you don’t particularly search for the hidden information, you’ll do not have idea the encrypted info is even there. One good tool for this might be OpenPuff,a effective open-source steganography application which supports a broad range of “carrier” formats for hiding information inside, including MP3, JPG, plus more.
OpenPuff’s interface looks easy at initially, nevertheless it does take several getting chosen to.
For illustration, we can conceal an significant text content inside an image file, plus then post which file publicly online. Another party may then download the file and—using OpenPuff along with a password we both shared inside advance—process the file plus extract any info you’ve buried inside it.
By standard, OpenPuff asks we to safeguard a info with 3 different passwords, though it does allow you to dial which right down to really a single password. It even supports plausibly deniable encryption, plus this really is where items receive certainly paranoid: Even when somebody somehow realizes the apparently innocent image or music file contains a hidden content, OpenPuff lets we conceal a decoy together with the real content. Simply give a different password, as well as the additional individual may extract the decoy from the image, thinking they’ve won–but really, the real secret can nonetheless be hidden inside the file.
Steganography commonly functions effectively for hiding brief text messages or alternative condensed information; clearly, we can’t conceal an whole movie file in another movie file utilizing steganography–there’s simply no area for all those additional bytes. However, should you have to conceal a big amount of info, OpenPuff lets we chain numerous carrier files together into 1 big content. To extract the data, the recipient (or yourself) must have the carrier files, plus feed them into OpenPuff inside precisely the appropriate sequence, together with the correct password or passwords. Not for the faint of heart.
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