GNU bug report logs - #15552
24.3.50; epa-file-cache-passphrase-for-symmetric-encryption not respected with GnuPG 2.x

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Teodor Zlatanov <tzz <at> lifelogs.com>
Subject: bug#15552: closed (Re: bug#15552: 24.3.50; epa-file-cache-passphrase-for-symmetric-encryption
 not respected with GnuPG 2.x)
Date: Mon, 07 Oct 2013 23:42:03 +0000

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Your bug report

#15552: 24.3.50; epa-file-cache-passphrase-for-symmetric-encryption not respected with GnuPG 2.x

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 15552 <at> debbugs.gnu.org.

-- 
15552: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15552
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Daiki Ueno <ueno <at> gnu.org>
To: Teodor Zlatanov <tzz <at> lifelogs.com>
Cc: 15552-done <at> debbugs.gnu.org
Subject: Re: bug#15552: 24.3.50;
 epa-file-cache-passphrase-for-symmetric-encryption not respected with
 GnuPG 2.x
Date: Tue, 08 Oct 2013 08:41:40 +0900

tags 15552 notabug
thanks

Teodor Zlatanov <tzz <at> lifelogs.com> writes:

> 1. On the local system, install GnuPG 2.x and don't run the gpg-agent
> 2. Set epa-file-cache-passphrase-for-symmetric-encryption to t
> 3. Open file.gpg: password dialog pops up
> 4. close file.gpg
> 5. Open file.gpg: password dialog pops up again
>
> Step (5) should not prompt.  It works properly with GnuPG 1.x.

That's intended behavior.  It is documented and I stated a number of
times the reason and why I chose such a lengthy name of the variable and
the default is nil:

1. Emacs heap is not so secure
2. Using Emacs for password input degrades the security

You never hear or remember.

[Message part 3 (message/rfc822, inline)]

From: Teodor Zlatanov <tzz <at> lifelogs.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.50;
 epa-file-cache-passphrase-for-symmetric-encryption not respected with
 GnuPG 2.x
Date: Mon, 07 Oct 2013 13:56:59 -0400

1. On the local system, install GnuPG 2.x and don't run the gpg-agent
2. Set epa-file-cache-passphrase-for-symmetric-encryption to t
3. Open file.gpg: password dialog pops up
4. close file.gpg
5. Open file.gpg: password dialog pops up again

Step (5) should not prompt.  It works properly with GnuPG 1.x.



In GNU Emacs 24.3.50.2 (x86_64-unknown-linux-gnu, GTK+ Version 3.4.4)
 of 2013-09-20 on flea.lifelogs.com
Bzr revision: 114415 rgm <at> gnu.org-20130921005207-1eq49miu7feptu8i
Windowing system distributor `The X.Org Foundation', version 11.0.11304000
System Description:	Gentoo Base System release 2.2

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