From: AW <alexander.willand@t-online.de>
To: emacs-orgmode@gnu.org
Cc: John Kitchin <jkitchin@andrew.cmu.edu>
Subject: Re: org-crypt: Secure encrypted message against inadvertent change
Date: Mon, 24 Aug 2015 20:42:01 +0200 [thread overview]
Message-ID: <3105448.huDFGUVVHr@linux-k2bd.site> (raw)
In-Reply-To: <m24mjptvas.fsf@andrew.cmu.edu>
Am Sonntag, 23. August 2015, 19:54:51 schrieb John Kitchin:
> I am not sure if you put the comment on this post:
> http://kitchingroup.cheme.cmu.edu/blog/2014/09/13/Make-some-org-sections-rea
> d-only/
>
> but it is possible to setup a hook that makes headings read-only. You
> could do that for headings tagged crypt, for example.
Dear John,
thank you. I simply changed "read_only" to "crypt" in the functions you
developed. This functions prevent a change of encrypted text, which I think is
really an improvment.
===================
(defun org-mark-readonly ()
(interactive)
(org-map-entries
(lambda ()
(let* ((element (org-element-at-point))
(begin (org-element-property :begin element))
(end (org-element-property :end element)))
(add-text-properties begin (- end 1) '(read-only t))))
"crypt")
(message "Made readonly!"))
(defun org-remove-readonly ()
(interactive)
(org-map-entries
(lambda ()
(let* ((element (org-element-at-point))
(begin (org-element-property :begin element))
(end (org-element-property :end element))
(inhibit-read-only t))
(remove-text-properties begin (- end 1) '(read-only t))))
"crypt"))
(add-hook 'org-mode-hook 'org-mark-readonly)
===================
Thus before I can use "org-decrypt-entry" I have to put the cursor under the
headline with the tag ":crypt:" and call "org-remove-readonly".
I S U G G E S T to put this into org-crypt and change the commands org-
decrypt-entry and org-encrypt-entry: Encrypted text shall be read-only, and
org-decrypt-entry removes this.
Sorry, I'm a user without knowledge of Lisp, unfortunately I can't do that
myself. But it would be a valuable improvement of org-crypt.
Regards,
Alexander
>
> AW writes:
> > I'm using org-crypt. All text below a heading with the tag :crypt: becomes
> > encrypted with saving the file and looks like this:
> >
> > -----BEGIN PGP MESSAGE-----
> > Version: GnuPG v2
> >
> > hQEOAxn9DjwjX2oYEAQAgLl/58dss1VVgmRb1rGIaNV2I5P+smcDjhWa5/arTMPE
> > 9wjxHUpU/HSflCwnV5609H3J9ZSVubCpaUbV3Da0jnDUJuljFbSqapRym1PW0hFn
> > ApfLwze3HTj+A3eODf+p3kbDjFnII9Rfn7lWQ/6OmMrisQbvbsWzS3K/crgqu+cD
> > /j6m3nDURonKGStv5h7sgaSRuLGzqXvHXEnS+d1ad1ZomgTD4abZNvDYt9Y039FE
> > xYwRphWSBs+vtQ34resZewCa4s7h5SES5j839vQPWI4VyA4uRrfzYATHnHtoxfwA
> > RQWzUTeS16FFBxnjqqTXGXqH9go25Ovnl1Np9c2H7veH0lQB/hpwGbUJRnYCx5Nd
> > UlZ/U+aKQJl3aD+ulgOxJhTQNb9ToXxMpwS3FitsZHVh8OaRBLdgjRVFstWw3NhT
> > RTQ3Og0+ts34iKW+u+2ock/LqiDYFx4=
> > =+xma
> > -----END PGP MESSAGE-----
> >
> > I really hope this example will not irritate your email software.
> >
> > My notebook has one of those large touchpads and once in a while I hit it
> > and go on with typing, but the cursor shifted to text somewhere else and
> > I'm adding letters to a completely different paragraph, before I notice
> > and correct it.
> >
> > Well, this evening I added some letters inadvertently inside a PGP
> > message,
> > because the touchpad shifted to cursor to an encrypted paragraph. If I
> > saved the file, the encrypted paragraph would have become un-decryptable
> > (I tested this: decrypting no longer is possible).
> >
> > Unfortunately I won't always realise what happened, e.g. if I don't watch
> > while dictating into a speech recognition (Dragon Nat. Speak.).
> >
> > And the encrypted parts are not needed often. So the destroyed PGP message
> > might make it into my backups and if I try to encrypt it a year later...
> >
> > Why isn't the text between
> >
> > -----BEGIN PGP MESSAGE-----
> >
> > and
> >
> > -----END PGP MESSAGE-----
> >
> > read-only as a default ?
> >
> > Really, an inadvertent change can destroy valuable information and it i
>
> --
> Professor John Kitchin
> Doherty Hall A207F
> Department of Chemical Engineering
> Carnegie Mellon University
> Pittsburgh, PA 15213
> 412-268-7803
> @johnkitchin
> http://kitchingroup.cheme.cmu.edu
next prev parent reply other threads:[~2015-08-24 18:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-23 21:31 org-crypt: Secure encrypted message against inadvertent change AW
2015-08-23 22:32 ` gershman
2015-08-23 23:54 ` John Kitchin
2015-08-24 18:42 ` AW [this message]
2015-08-26 21:04 ` AW
2015-09-08 14:48 ` Hymie!
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