I want to work with
gpg-encrypted files using Emacs, and would like to be able to enter the passphrase for each encrypted file only once per Emacs session.
I used to be able to do this by setting the variable
t, but this no longer works. The explanation can be found in the last line of the documentation for the variable
(defcustom epa-file-cache-passphrase-for-symmetric-encryption nil "If non-nil, cache passphrase for symmetric encryption. For security reasons, this option is turned off by default and not recommended to use. Instead, consider using gpg-agent which does the same job in a safer way. See Info node `(epa) Caching Passphrases' for more information. Note that this option has no effect if you use GnuPG 2.0." :type 'boolean :group 'epa-file)
After a recent system update, the
gpg in my system is now version 2.1.8, which renders
The references mentioned in the documentation above lead to a page that just tells you, again, to use
gpg-agent, but says nothing about how to do it. I have not been able to find clear instructions on how to set up
gpg-agent for the use-case I described at the beginning of this post. Any help would be appreciated.
ps tells me that
/usr/bin/gpg-agent --supervised is indeed running. What else must I do to get it to cache the passphrases I enter when working with
Also, the value of my
epg-gpg-program variable is
/usr/bin/gpg, which refers to the installed version 2.1.8 instance of
gpg mentioned earlier.
The versions of Emacs I am using are 26.0.50 and 27.0.50. For both cases, the version of the
epa package is 23.1.