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Privacy @lemmy.ml
helloyanis @jlai.lu

šŸ” Digitally sign and send encrypted emails with S/MIME

Heya, I found how you can digitally sign and encrypt emails! (It even gives them a cool icon for others to see!), and I haven't seen anything about it before so I thought I'd share how I did it!

Do you also want to send encrypted emails and sign them? Just follow these few steps!

But beforehand, let's define some terms :

  • Signed email : Email with a valid numerical signature. Anyone can read it and know it has not been modified since it was sent.
  • Encrypted email : Email encrypted with the recipient's public key. They can decrypt it with their private key
  • S/MIME certificate : A .p12 file containing your private key (So keep it for yourself and don't send it to anyone!!) and your public key.

Okay, now it's time to...

Start the setup (Obtain an S/MIME certificate)

  • You'll need to ask to an authority for a certificate. Personally I use Actalis because they
Privacy @lemmy.ml
pcouy @lemmy.pierre-couy.fr

Increase privacy by using nginx as a caching proxy in front of a map tile server

This is a guide I wrote for Immich's documentation. It features some Immich specific parts, but should be quite easy to adapt to other use cases.

It is also possible (and not technically hard) to self-host a protomaps release, but this would require 100GB+ of disk space (which I can't spare right now). The main advantages of this guide over hosting a full tile server are :

  • it's a single nginx config file to deploy
  • it saves you some storage space since you're only hosting tiles you've previously viewed. You can also tweak the maximum cache size to your needs
  • it is easy to configure a trade-off between map freshness and privacy by tweaking the cache expiration delay

If you try to follow it, please send me some feedback on the content and the wording, so I can improve it