3 EasyPG is yet another GnuPG interface for Emacs. It consists of two parts:
5 - "The EasyPG Assistant" which provides basic GUI of GnuPG
6 - "The EasyPG Library" which enables use of various features of GnuPG
8 NOTE: EasyPG is neither a fork nor a re-implementation of Gnus/PGG.
12 ** GNU Emacs 21.4 or XEmacs 21.4
23 Add the following line to your ~/.emacs
27 Then you can browse your keyring by `M-x epa-list-keys'. In addition,
28 you can do some cryptographic operations on dired.
32 : e (or M-x epg-dired-do-encrypt)
33 (select recipients and click [OK])
35 * Security consideration
37 ** `call-process-region' writes data in region to a temporary file
39 `call-process-region' writes data in region to a temporary file.
40 EasyPG does *not* use `call-process-region' to communicate with a gpg
43 ** `(fillarray string 0)' is not enough to clear passphrases
45 If Emacs crashes and dumps core, Lisp strings in memory are also
46 dumped within the core file. `read-passwd' function clears passphrase
47 strings by `(fillarray string 0)'. However, Emacs performs compaction
48 in gc_sweep phase. If GC happens before `fillarray', passphrase
49 strings may be moved elsewhere in memory. Therefore, passphrase
50 caching in Elisp is generally a bad idea.
52 The EasyPG Library dares to disable passphrase caching. Fortunately,
53 there is more secure way to cache passphrases - use gpg-agent. Elisp
54 programs can set `epg-context-passphrase-callback' to cache user's
55 passphrases, it is not recommended though.