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Re: [O] org-crypt: Secure encrypted message against inadvertent change


From: gershman
Subject: Re: [O] org-crypt: Secure encrypted message against inadvertent change
Date: Sun, 23 Aug 2015 15:32:52 -0700
User-agent: K-9 Mail for Android

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 <address@hidden> 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.



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