rysasahrialThis overview highlights ConnectBot’s open‑source SSH client for Android, emphasizing its robust Java source code, secure SSH protocol implementation, and customizable plugin support. ConnectBot, originally released in October 2008, remains one of the most trusted Android terminal apps today. Its maintainers continue to deliver regular updates under the Apache‑2.0 license, and community contributions ensure ongoing improvements via GitHub.
Developers seeking Android SSH client source code will appreciate ConnectBot’s clear project structure, which includes modules for terminal emulation, SSH session management, key exchange, encryption algorithms, and integration with the Android SDK. The repository offers step‑by‑step guidance for building the app using Android Studio or the command‑line build tool gradlew, simplifying the workflow for both novices and advanced developers.
ConnectBot implements industry‑standard SSH2 encryption algorithms (such as aes256‑ctr, aes128‑ctr, 3des‑ctr) and MACs (including hmac‑sha2‑512, hmac‑sha1) using its SSH library, originally forked from Trilead SSH2. The library supports key types like RSA, Ed25519, ECDSA, and various Diffie‑Hellman exchanges. Ideal for developers working on secure Android apps, ConnectBot’s code supports multiple simultaneous SSH sessions, secure tunnels, key‑based authentication, and host management.
Because ConnectBot is released under the Apache‑2.0 license, developers can integrate, modify, and distribute its source code freely in proprietary or open‑source projects. However, attribution and inclusion of the license in redistributed code are required. Contributions to the project are welcomed through GitHub—developers can fork the repo, submit pull requests, or engage with the community via Libera.Chat #connectbot channel.
Whether you’re building a terminal emulator, adding SSH support to your Android project, or learning secure network coding, ConnectBot’s well‑documented source code, modular architecture, and active community support make it a top resource. Focus keyphrase: Android SSH client source code.
- Author (maintainer): ConnectBot community (main developer: Kenny Root)
- Programming language: Java
- License: Apache‑2.0 (source code can be used freely with attribution; must retain NOTICE file and license headers)
- License constraints: Permits commercial and closed‑source use; requires license and attribution retention
- Repository link: https://github.com/connectbot/connectbot