Secure Open-Source Software
- Comprehensive collaboration suite (such as Google Docs/Sheets/...),
- end-to-end encrypted,
- developed and hosted in France (or self-hosted),
- End-to-end encrypted messenger,
- based on the Matrix ecosystem,
- apps available for all major operating systems (mobile and desktop),
- can be used with your Bauhaus.Chat login.
- End-to-end encrypted messaging app,
- non-commercial software managed by the Signal Foundation (US),
- intuitive and easy to use, offering an experience similar to popular messaging apps such as WhatsApp,
- based on open-source, peer-reviewed encryption algorithms.
- A modern, feature-rich note-taking app,
- end-to-end encrypted.
- Secure, feature-rich video conferencing
- Secure, feature-rich password and secure data manager,
- free, official Bitwarden instance with servers in either the EU or the US (+ $10 per year for full features)
- self-hostable.
- Self-hosted, secure whistleblowing platform.
Further Tools
Visual Cryptography: A demonstration of visual cryptography.
Author: Andreas Jakoby
Language: Java (Version 8 Update 73 (1.8.0.73))
Download: Visual Cryptography
The applet is based on an older tool written at the Institute for Theoretical Computer Science at the University of Lübeck. It was further developed at the Bauhaus University for the ‘MINT Programme to Promote Technical Competence among School Pupils’.
Simple Digital Watermark: Embedding text in a PNG image and extracting this text
Author: Andreas Jakoby, Benjamin Burse, Lisa Guth
Language: Octave (4.0)
Download: Digital Watermarks
The programme was developed for the ‘MINT Course for Promoting Technical Competence among School pupils’ at the Bauhaus University. This programme is intended solely to demonstrate that text can be embedded in an image in such a way that it cannot be seen by the human eye. However, embedded messages can easily be extracted, removed or modified!