Cool idea from Travis. This will enable to import my public key simply by running curl https://cbbg.nl | gpg --import. Pretty cool huh? Worth the few extra bytes at each page load? Hell yeah!

In config/_default/params.toml

key='''
<!--
-----BEGIN PGP PUBLIC KEY BLOCK-----

xsFNBFRABlQBEADpJnaPhAWHkAw7kiRq5xdvh51BC86O2aQMALKlmNesSNR/aIIk
...................... more key data ...........................
GBNnmKCglTQSqNnWFyq6lKqus01dG4c+f4BUnQaqllUwcnCqBGjxkCLx8JTXaEoa
v68=
=T92X
-----END PGP PUBLIC KEY BLOCK-----
-->
'''

Somehere in the footer partial of my theme I added this:

{{ if .IsHome }}
  {{ site.Params.key | safeHTML }}
{{ end }}

This will only include the raw HTML code including the key on the homepage.