zsteg

Description

detect stegano-hidden data in PNG & BMP

Installation

gem install zsteg

Detects:

Usage

% zsteg -h

Examples

Simple LSB

% zsteg flower_rgb3.png

Multi-result file

% zsteg cats.png

wbStego even distributed

% zsteg wbstego/wbsteg_noenc_even.bmp 1b,lsb,bY -v

wbStego encrypted

% zsteg wbstego/wbsteg_blowfish_pass_1.bmp 1b,lsb,bY -v

zlib

% zsteg ndh2k12_sp113.bmp -b 1 -o yx -v

See also

  1. 29a.ch/photo-forensics/

  2. holloway.nz/steg/

License

Released under the MIT License. See the LICENSE file for further details.