Great post!<p>BTW, you can also now use hardware devices (like TREZOR and KeepKey) to perform &quot;ssh-agent&quot; functionality in hardware, with minimal setup work.<p>Blog post: <a href="https:&#x2F;&#x2F;medium.com&#x2F;@satoshilabs&#x2F;trezor-firmware-1-3-4-enables-ssh-login-86a622d7e609" rel="nofollow">https:&#x2F;&#x2F;medium.com&#x2F;@satoshilabs&#x2F;trezor-firmware-1-3-4-enable...</a><p>Source code: <a href="https:&#x2F;&#x2F;github.com&#x2F;romanz&#x2F;trezor-agent" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;romanz&#x2F;trezor-agent</a> (the README has several demo screencasts).