https://github.com/enferex/mp3nema

Analyze and insert data between frames of an mp3.
https://github.com/enferex/mp3nema

Last synced: 25 days ago
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Analyze and insert data between frames of an mp3.

• Host: GitHub
• URL: https://github.com/enferex/mp3nema
• Owner: enferex
• License: gpl-3.0
• Created: 2013-07-01T12:45:23.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2013-07-01T12:56:08.000Z (over 11 years ago)
• Last Synced: 2024-08-04T22:15:33.204Z (4 months ago)
• Language: C
• Size: 184 KB
• Stars: 8
• Watchers: 5
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README
  • Changelog: ChangeLog
  • License: LICENSE

Awesome Lists containing this project

• awesome-anti-forensic - Mp3nema

README

        
mp3nema

-------

MP3nema is a tool aimed at analyzing and capturing data that is hidden between

frames in an MP3 file or stream, otherwise noted as "out of band" data.  This

utility also supports adding data between frames, and capturing streaming

audio.

Building

--------

From the top-level directory of mp3nema run:

    ./configure

    make

Debugging mode can be enabled when configuring by using the following option:

    ./configure --enable-debug

The resulting binary can be placed anywhere, as there is no "install" target in

the makefile.

Usage

-----

There are four main uses for mp3enema.

0 - Analyzing files or streaming audio to find data hidden between audio frames.

1 - Capturing streaming audio to a file.

2 - Extracting out of band data to a file.

3 - Inserting data between frames.

When inserting data between frames, the destination can be a single MP3 file,

or a directory of MP3s.  To be more covert, larger files should probably be

spanned across multiple MP3s.  In such a case a directory of MP3 files can be

specified.  The resulting files, with the injected data, will be numbered so

that they can be extracted in proper order. 

It is suggested that an ASCII-based encoding (e.g. uuencode) be used to encode

the data that is to be stashed between frames.  This avoids the possibility of

replicating an MP3 sync-frame, which would signify the potential start of audio

data, and confuse the data-extraction process or audio-playback.  Likewise, the

case of an ASCII character sequence of "ID3" in the data might also create

confusion.

The help menu, when running mp3nema without any arguments, designates how to

operate in one of the aforementioned modes.

The files produced are automatically named based on the source MP3 file or

stream that is being analyzed.  In the case of duplicate file names, a

sequential number is added to the end of the resulting file, before the

extension.

    

Thanks

------

The rest of 757labs (www.757labs.com)

GNU (www.gnu.org)

Contact / Project URL

-------

[email protected]

www.757labs.org/projects/mp3nema