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Hardware-based SSH/GPG/age agent

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This project allows you to use various hardware security devices to operate GPG, SSH and age. Instead of keeping your key on your computer and decrypting it with a passphrase when you want to use it, the key is generated and stored on the device and never reaches your computer. Read more about the design here.

You can do things like sign your emails, git commits, and software packages, manage your passwords (with pass and passage, among others), authenticate web tunnels and file transfers, and more.

See the following blog posts about this tool:

Currently TREZOR One, TREZOR Model T, Keepkey, Blockstream Jade, Ledger Nano S, and OnlyKey are supported.

Components

This repository contains source code for one library as well as agents to interact with several different hardware devices:

Documentation

  • Installation instructions are here
  • SSH instructions and common use cases are here
  • GPG instructions and common use cases are here
  • age instructions and common use cases are here
  • Instructions to configure a Trezor-style PIN entry program are here
  • Instructions for using the tools on Windows are here