Outguess will conceal your document inside image (JPG) of your choice. Outguess is an advanced steganography tool. Maybe teachers still use this in their classrooms. Outguess is a steganography for Mac created by Rbcafe. cryptanalytics, cryptology, coding, steganography, secret writing. I'm sure you meant well with your tutorial but you should always care to quote your sources, give due credits and not sail too late after the tide (15years is a tad late). Decrypt image online tool will revoke the encrypted pixels from image to original. Like many before you, you've listed and described the syntax of the steghide command without even referring to the (on-line) user manual it's literally copied from. The program might be open source and 15yr old but, nevertheless, it's not a built-in Linux Terminal command as kind of often hinted, probably because it's directly available as a downloadable package to most Linux distros (through apt-get install command). In fact, most of the literature on steghide, including your post, doesn't entirely describe what it is and/or give credits to its author, Stefan Helz. 2002! Windows was XP and Mac OS X was Puma on Power Macintosh in those days. For Mac, there indeed used to be something called iSteg: Īs for steghide, 'not the freshest thing around either (no offense to its author meant)! e.g.: from.