Here I redirect the standard input (the output of cat command) into the stegwrite tool and specify an existing and desired output picture object. txt | /usr/local/ stegotools-0.4b/ stegwrite grill.jpg summer-grill. The latest version of stegtools supports 24bpp bitmap images, and runs on Linux and FreeBSD operating systems.Ĭat pass. Stegtools is a pair of command-line tools for reading and writing hidden information. That's because Steghide automatically knows what the file name was that was inserted and extracts the file with the same name. Note that when extracting we didn't specify any output file.
#INPUT OUTGUESS OUTPUT PASSWORD#
txt only if your password (secret key) is correct. You'll be asked for a password, and the utility will extract the pass. ~$ steghide embed - cf grill.jpg - sf summer-grill. Let's use the same scenario from our previous example. Steghide runs under both Linux and Windows. The default encryption algorithm is Rijndael with a key size of 128 bits, which is basically AES (Advanced Encryption Standard), but you can choose from many other encryption algorithms as well. The latest version of Steghide supports hiding sensitive information inside BMP and JPEG image formats as well as in AU and WAV audio formats. Steghide is another program you can use to hide sensitive data inside image and audio files. If you don't specify the -k option and provide the key, OutGuess will extract the pass. As long as he knows the secret key I used for the encryption, he can run the command: When my coworker receives the picture, he needs to extract the information from the file. Anyone who sees the picture won't notice anything strange, since the data in the image object is not visible to the human eye. jpg that holds my production server's root password, and I can mail it to my coworker.
![input outguess output input outguess output](https://image.slidesharecdn.com/harshfocppt-161122123738/95/ppt-on-input-output-devices-5-1024.jpg)
If you leave it off, however, anyone who knows there's a file buried in the image can extract the output file. You don't need to use the -k option to encrypt the sensitive data with a secret key. txt file, then encrypt it with a secret key and mix the encrypted version with an image called grill.jpg. I can start by putting the password in a pass. Suppose I want to securely send a root password for a production server.
#INPUT OUTGUESS OUTPUT MAC OS#
OutGuess can be used on Linux, *BSD, Solaris, AIX, HP-UX, Mac OS X, and Windows. It supports inserting objects into PPM, PNM, and JPEG image formats.
![input outguess output input outguess output](https://image.slidesharecdn.com/inputoutput-170312060905/95/input-output-1-638.jpg)
OutGuess is console-based universal steganographic tool that can hide information inside picture objects.