GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger, and a file transfer utility. Also included is a URL-distribution and search tool.
Features
Alpha processors.
Authenticated and encrypted SQLite and PostgreSQL URL databases.
BSD license.
Bluetooth, SCTP, TCP, UDP.
Configurable thread priorities.
Custom URL rules.
Custom socket options.
DSA, ECDSA, EdDSA, ElGamal, McEliece, NTRU, RSA.
DTLS.
Debian packages.
Distributed URL system.
Distributed e-mail.
Dooble, Firefox, Lynx, etc. support for custom search engine.
E-mail (IMAP, POP, Spot-On).
Echo public-key distribution system.
End-to-End, not Hop-to-Hop encryption.
FreeBSD, Linux, Mac, OS/2, OpenBSD, Windows.
GPG-lite via Rosetta.
Infinite listeners and neighbors.
Integrated file encryption of directories and files.
Mac and Windows install targets: make install!
Messaging.
Multitasking kernel.
Natively compiled on Alpha, ARM, PowerPC, Sparc64, X86, X86_64.
Optional SSL/TLS.
Poptastic, or, communications through e-mail. IMAP, POP3, SMTP.