hterm and Secure Shell (and a few related projects)

Clone this repo:
  1. 485640e nassh: Add support for Ed25519 via OpenPGP applet by Fabian Henneke · 10 hours ago master
  2. 2c8b8db nassh: Add support for ECDSA keys via OpenPGP applet by Fabian Henneke · 10 hours ago
  3. 107557f nassh: Only offer PIN caching if using agent forwarding by Fabian Henneke · 31 hours ago
  4. eaa7e61 nassh: Refactor and rename wire encoding primitives by Fabian Henneke · 2 days ago
  5. e9b4f4c nassh: bump to version 0.16 by Mike Frysinger · 2 days ago


This repository contains the libdot JavaScript library and some web applications that make use of it.

The official copy of this repository is hosted at

There is also a mirror on github at A few subprojects are also extracted out into their own git repo and mirrored. Keep in mind that these mirrors may occasionally be behind the official repository.

All changes must go through the Gerrit code review server on Github pull requests cannot be accepted. Please see the document in this directory for the details.

Top level directories

  • libdot/ is a small set of JS libraries initially developed as part of hterm, now available as shared code.

  • hterm/ is a JS library that provides a terminal emulator. It is reasonably fast, reasonably correct, and reasonably portable across browsers.

  • nassh/ is the Secure Shell Chrome App (currently a “v1.5” app, soon to become a “v2” or platform app) that combines hterm with a NaCl build of OpenSSH to provide a PuTTY-like app for Chrome users.

  • ssh_client/ is the NaCl port of OpenSSH. It is used by nassh to create the Secure Shell App.

  • wash/ is a library for cross-origin virtual filesystems, similar to the Plan 9 filesystem. This directory also contains a simple bash-like shell environment for exploring these filesystems. The code in this directory is a work-in-progress.