I have searched everywhere for information on how to use org-crypt to password protect specific headings in org-mode. Most of the info out there says use org-crypt. I have added the org-crypt lines to my .emacs without any luck getting it to work. I think you also have to use gpg but am still unsure.
I have added:
(require 'org-crypt)
(org-crypt-use-before-save-magic)
(setq org-tags-exclude-from-inheritance (quote ("crypt")))
;; set to nil to use symmetric encryption.
(setq org-crypt-key nil)
When I save the file with the crypt tag nothing happens. I think I am missing some kind of connecting code. Anyone know what I am doing wrong? Many Thanks in advance.
Much internet searching and trial (lots of error) led me to the config below. Essentially you use org-crypt WITH gnupg. Keep in mind I am running macOS Sierra and Emacs 25.2 .
Use homebrew to install gnupg: brew install gnupg2
Add the following lines to your .emacs. It will allow you to encrypt individual headings in an org-file with a passphrase using the TAG :crypt: when added to the heading and saved (C-x C-s). Upon save there will be a pop-up asking for the passphrase.
(require 'epa-file)
(custom-set-variables '(epg-gpg-program "/usr/local/bin/gpg2"))
(epa-file-enable)
(require 'org-crypt)
(org-crypt-use-before-save-magic)
(setq org-tags-exclude-from-inheritance (quote ("crypt")))
;; set to nil to use symmetric encryption.
(setq org-crypt-key nil)
For good measure:
;; Global Tags
(setq org-tag-alist '(("crypt" . ?c)))
That should be it. Hope this helps.