GoldBug - Private Communications Icon

GoldBug - Private Communications

Secure: E-Mail-Client. Instant ChatMessenger. Websearch. Filetransfer.

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GoldBug is a secure communication suite offering an E-Mail-Client, an Instant Chat Messenger, Filetransfer and a P2P Websearch within decentralized URL-Databases. Every of your transfers is multi-encrypted by default.

● English User Manual:
● German Handbuch:

COMPILE from source:

qmake -o Makefile
make or mingw32-make

or choose in Qt-Creator:

GoldBug offers for these main functions of E-Mail, Chat, IRC-like Groupchat, Filesharing and Web search multi-encrypted transfers based on asymmetric and also symmetric end-to-end encryption, the user can define. Once you have exchanged your encryption keys with a friend, the usage is very easy.

GoldBug - Private Communications Web Site


  • Secure Chat: Secure decentral P2P/F2F Instant Messaging Chat
  • POP3 / IMAP E-Mail-Client
  • p2p E-Mail: Store Email for Offline-Friends in the P2P Network.
  • Forward Secrecy
  • SMP: Socialist Millionaire Potocol
  • File-Encryption for Files on the Hard Disc
  • Accounts for Connections to the Chat-Server: F2F-Web of Trust.
  • End-to-End Encryption with 3 methods for Gemini-Generation
  • RSA, ElGamal and NTRU, OpenSSL, AES, libgcrypt
  • Echo-Protocol based on HTTPS
  • Message Format: SSL/TLS (AES-Gemini (RSA or NTRU or ELGMAL (data or message)))
  • User manual:
  • Open Source BSD License. For libs see libs.
  • manually customizable encryption values
  • Chat-Server integrated and easy to install
  • Cool smileys


Additional Project Details


English, German

Intended Audience

Science/Research, Advanced End Users, Developers, End Users/Desktop, Security Professionals, Security

User Interface


Programming Language



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