Page Encryption Plug: Silverbullet Crypt

Plugs and Libraries
1

Inspired by Meld Encrypt for Obsidian, I made a library that adds per-page encryption to SilverBullet. Runs entirely in Space Lua, nothing compiled.

How it works:

  • Run "Crypt: Encrypt Page" on any page to encrypt it
  • Frontmatter (tags, dates, etc.) stays in plain text so indexing and queries keep working
  • Body is encrypted on disk, decrypted in-memory only
  • Passphrase entered once per session, lost on tab close
  • Auto-decrypts when you navigate to an encrypted page
  • Auto-re-encrypts on save
  • Change password command re-encrypts all pages at once

Uses PBKDF2 via the Web Crypto API.

Install with Library: Install:

github:ahzay/silverbullet-crypt/PLUG.md

Repo: GitHub - ahzay/silverbullet-crypt: Per-page AES-256-GCM encryption for SilverBullet. · GitHub

Happy to hear your feedback! Feel free to open MRs or issues!

2

Oh this is very smart (just skimmed the code to see how you did it). Nicely done! Have to try this.

3

Thank you! It's kind of janky doing these calls from Lua but it worked out. Awesome software you've got there! I found it after I got sick of fiddling with yet another sync solution for obsidian, I figured there must be something that I can just host and access from a browser.

Thanks for the great work, fell in love with the software instantly. I'd call it emacs for people who don't hate themselves :')

4

I will have to try this soon. Interested because I have a use case for it.