* org-crypt: Secure encrypted message against inadvertent change
@ 2015-08-23 21:31 AW
2015-08-23 22:32 ` gershman
2015-08-23 23:54 ` John Kitchin
0 siblings, 2 replies; 6+ messages in thread
From: AW @ 2015-08-23 21:31 UTC (permalink / raw)
To: emacs-orgmode
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
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: org-crypt: Secure encrypted message against inadvertent change
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
1 sibling, 0 replies; 6+ messages in thread
From: gershman @ 2015-08-23 22:32 UTC (permalink / raw)
To: AW, emacs-orgmode
If it helps, though aside from the question, all GPG lines (except the last 2) are 64 chars(if memory serves). A little scripting and decryption should be plausible (possible in reasonable time), especially if chars were only added and not deleted/changed.
On August 23, 2015 2:31:26 PM PDT, AW <alexander.willand@t-online.de> wrote:
>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
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: org-crypt: Secure encrypted message against inadvertent change
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
1 sibling, 1 reply; 6+ messages in thread
From: John Kitchin @ 2015-08-23 23:54 UTC (permalink / raw)
To: AW; +Cc: emacs-orgmode
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-read-only/
but it is possible to setup a hook that makes headings read-only. You
could do that for headings tagged crypt, for example.
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
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: org-crypt: Secure encrypted message against inadvertent change
2015-08-23 23:54 ` John Kitchin
@ 2015-08-24 18:42 ` AW
2015-08-26 21:04 ` AW
2015-09-08 14:48 ` Hymie!
0 siblings, 2 replies; 6+ messages in thread
From: AW @ 2015-08-24 18:42 UTC (permalink / raw)
To: emacs-orgmode; +Cc: John Kitchin
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
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: org-crypt: Secure encrypted message against inadvertent change
2015-08-24 18:42 ` AW
@ 2015-08-26 21:04 ` AW
2015-09-08 14:48 ` Hymie!
1 sibling, 0 replies; 6+ messages in thread
From: AW @ 2015-08-26 21:04 UTC (permalink / raw)
To: emacs-orgmode
Am Montag, 24. August 2015, 20:42:01 schrieb AW:
> 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-r
> > ea 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.
I wrote to the person mentioned in org-crypt.el as maintainer and received the
message that he no longer uses org-mode and no longer maintains org-crypt.el.
What a pity, org-mode is better than ever.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: org-crypt: Secure encrypted message against inadvertent change
2015-08-24 18:42 ` AW
2015-08-26 21:04 ` AW
@ 2015-09-08 14:48 ` Hymie!
1 sibling, 0 replies; 6+ messages in thread
From: Hymie! @ 2015-09-08 14:48 UTC (permalink / raw)
To: emacs-orgmode
AW <alexander.willand <at> t-online.de> writes:
> 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.
This is awesome. But I have a follow-up questions.
This function marks my buffer as "modified". Is there any way to
automatically have the org-mark-readonly function turn off the modified flag?
This isn't a major problem, just a nicety.
--hymie!
>
> (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!"))
>
> (add-hook 'org-mode-hook 'org-mark-readonly)
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-09-08 14:48 UTC | newest]
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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
2015-08-26 21:04 ` AW
2015-09-08 14:48 ` Hymie!
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