Emacs interface to gpg?
zahn at berlin.snafu.de
Tue Jun 29 23:18:37 CEST 1999
>>>>> "Paul" == Paul D Smith <pausmith at nortelnetworks.com> writes:
Paul> I use mailcrypt for dealing with message signing in gpg, but
Paul> what do people use with Emacs for handling straight
Paul> encryption/decryption of files?
To solve this problem for pgp I use jka-compr.el. For the
extension .pgp and .pgp~ I define import and export filters in
jka-compr-compression-info-list like this:
"encoding" "pgp" ("-f" "-e" "\"Steffen Zahn\"")
"decoding" "pgp-auto" ("-f")
This is limited to a fixed set of recipient keys. If I need a different
set I invent another extension, for example .pgz etc.
pgp-auto is from a package named autopgp that probably predates mailcrypt
and has the property that the passphrase is read through a UNIX-domain
socket. On the other side of the socket waits a perl script that
reads the passphrase and supplies it over the socket. You start
the perl script in an xterm, enter the passphrase and then you can
load and save *.pgp files.
This `solution' should probably be restricted to machines over which
you have complete control.
To take care of the temporary files created during import/export I use
(setq jka-compr-temp-name-template (concat (getenv "HOME") "/.pgp/.wrapper/jka-com"))
(defun jka-compr-delete-temp-file (temp)
(put (intern temp jka-compr-temp-name-table)
(call-process "wipe" nil 0 nil temp)
This directs all temporary files to a directory that only the owner can access
and calls wipe to securely overwrite and delete the temp files after use.
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