[Name]
Ermis

[Version]
1.1.1

[Homepage]
https://github.com/alamahant/Ermis

[Download]
https://github.com/alamahant/Ermis/archive/refs/tags/v1.1.1.tar.gz

[Author]
Alamahant

[Licence]
GPL-3.0

[Description]
Ermis is a comprehensive steganography suite supporting multiple carrier formats:

• Image Steganography: Hide data in PNG, JPG, BMP using LSB techniques
• Audio Steganography: Support for WAV, MP3, FLAC, OGG with FFmpeg conversion
• Text Steganography: Zero-width Unicode character encoding for invisible message hiding
• PDF Steganography: Object stream embedding with FlateDecode compression
• Distributed Steganography: Wikipedia pointer maps for decentralized message hiding
• Network Steganography: ERTP protocol for hiding data in ICMP, DNS, UDP, and HTTP/TLS packets

[Dependencies]

• Qt 6.2 or higher (core, widgets, multimedia, network)
• FFmpeg libraries (libavcodec, libavformat, libavutil)
• OpenSSL development libraries
• C++17 compatible compiler

[Similar tools]

• steghide (image/audio steganography)
• outguess (image steganography)
• openstego (image steganography)
• Snow (text steganography)

[Activity]
Project started in March 2026. Actively maintained with regular releases. Latest version 1.1.1 released April 20, 2026.

[How to install]
Standard CMake build:
mkdir build && cd build
cmake ..
make
sudo make install

Also available as Flatpak on Flathub: io.github.alamahant.Ermis

[How to use]
Basic workflow examples:

• Hide text in image: Select carrier image → Enter text → Click "Hide Data" → Save stego image
• Extract from image: Open stego image → Click "Extract Data" → Save extracted content
• Network steganography: Both peers select protocol (ICMP/UDP/DNS/HTTP) and port → Start listening → Send text/file
• PDF steganography: Select PDF carrier → Choose file/text → Embed data → Save stego PDF

[Packaged]
Not currently packaged for Debian. Available in alamahant-overlay for Gentoo users and as Flatpak on Flathub.