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bug#20550: 25.0.50; Add GnuPG 2.x support to epa-file-cache-passphrase-f
From: |
Daiki Ueno |
Subject: |
bug#20550: 25.0.50; Add GnuPG 2.x support to epa-file-cache-passphrase-for-symmetric-encryption. |
Date: |
Tue, 12 May 2015 19:48:49 +0900 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) |
Artur Malabarba <bruce.connor.am@gmail.com> writes:
> - It made things worse in the sense that I now have to type the
> password 4(!) times when saving the file (all prompts are inside
> emacs). The first prompt is "Passphrase for symmetric encryption for
> /.../file.gpg: ", then I get "Confirm password: ", then I get the
> first one again, then the second one again.
Oh, you are right. GnuPG 2.1 --pinentry-mode=loopback asks passphrase
twice on symmetric encryption, while GnuPG 1.x does that only once (look
at the GET_HIDDEN lines below):
$ gpg2 --command-fd=1 --status-fd=1 --pinentry-mode=loopback --symmetric -o
/dev/null < /dev/null
gpg: NOTE: THIS IS A DEVELOPMENT VERSION!
gpg: It is only intended for test purposes and should NOT be
gpg: used in a production environment or with production keys!
[GNUPG:] NEED_PASSPHRASE_SYM 7 3 2
[GNUPG:] GET_HIDDEN passphrase.enter
test
[GNUPG:] GOT_IT
[GNUPG:] GET_HIDDEN passphrase.enter
test
[GNUPG:] GOT_IT
[GNUPG:] BEGIN_ENCRYPTION 2 7
[GNUPG:] END_ENCRYPTION
$ gpg --command-fd=1 --status-fd=1 --symmetric -o /dev/null < /dev/null
[GNUPG:] NEED_PASSPHRASE_SYM 3 3 2
[GNUPG:] GET_HIDDEN passphrase.enter
test
[GNUPG:] GOT_IT
[GNUPG:] BEGIN_ENCRYPTION 0 3
[GNUPG:] END_ENCRYPTION
Though I suppose the repetition is meant to be a confirmation, I think
it is not very useful for clients (since we already know that the
confirmation is needed) and causes compatibility issues.
Could this be fixed in GnuPG itself?
Thanks,
--
Daiki Ueno