Title: outguess.uci Description: Outguess - universal steganographic tool Version: 0.2 Author: Niels Provos Original-site: http://www.outguess.org/download.php Copying-policy: Outguess - BSD software license Stirmark code - GNU GPL IJG's JPEG code - see their readme. -----==[ Color = green Filesize: 123K ]==----- Extension-by: WDef Comments: OutGuess is a universal steganographic tool that allows the insertion of hidden information into the redundant bits of data sources. The nature of the data source is irrelevant to the core of OutGuess. The program relies on data specific handlers that will extract redundant bits and write them back after modification. In this version the PNM and JPEG image formats are supported, though OutGuess can use any kind of data, as long as a handler is provided. _ Compiled for i386 on dsl. _ EXAMPLES (from man page): _ Embed the message hidden.txt into the monkey.jpg image: _ outguess -k 'my secret pass phrase' -d hidden.txt monkey.jpg out.jpg _ To extract: _ outguess -k 'my secret pass phrase' -r out.jpg message.txt _ To embed a second message, use: _ outguess -k 'secret1' -d hide1.txt -E -K 'secret2' -D hide2.txt monkey.jpg out.jpg _ Outguess will first embed hide1.txt and then hide2.txt on top of it, using error correcting codes. The second message hide2.txt can be retrieved with: _ outguess -k 'secret2' -e -r out.jpg message.txt _ Change-log: Current: 2006/08/17 - First Version