1 ;;; epa.el --- the EasyPG Assistant
2 ;; Copyright (C) 2006 Daiki Ueno
4 ;; Author: Daiki Ueno <ueno@unixuser.org>
5 ;; Keywords: PGP, GnuPG
7 ;; This file is part of EasyPG.
9 ;; This program is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; This program is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 ;; Boston, MA 02110-1301, USA.
29 (eval-when-compile (require 'wid-edit))
32 "The EasyPG Assistant"
35 (defcustom epa-armor nil
36 "If non-nil, epa commands create ASCII armored output."
40 (defcustom epa-textmode nil
41 "If non-nil, epa commands treat input files as text."
45 (defcustom epa-popup-info-window nil
46 "If non-nil, status information from epa commands is displayed on
51 (defcustom epa-info-window-height 5
52 "Number of lines used to display status information."
56 (defgroup epa-faces nil
60 (defface epa-validity-high-face
61 '((((class color) (background dark))
62 (:foreground "PaleTurquoise" :bold t))
65 "Face used for displaying the high validity."
67 (defvar epa-validity-high-face 'epa-validity-high-face)
69 (defface epa-validity-medium-face
70 '((((class color) (background dark))
71 (:foreground "PaleTurquoise" :italic t))
74 "Face used for displaying the medium validity."
76 (defvar epa-validity-medium-face 'epa-validity-medium-face)
78 (defface epa-validity-low-face
81 "Face used for displaying the low validity."
83 (defvar epa-validity-low-face 'epa-validity-low-face)
85 (defface epa-validity-disabled-face
87 (:italic t :inverse-video t)))
88 "Face used for displaying the disabled validity."
90 (defvar epa-validity-disabled-face 'epa-validity-disabled-face)
92 (defface epa-string-face
95 (:foreground "lightyellow"))
98 (:foreground "blue4"))
101 "Face used for displaying the string."
103 (defvar epa-string-face 'epa-string-face)
105 (defface epa-mark-face
106 '((((class color) (background dark))
107 (:foreground "orange" :bold t))
109 (:foreground "red" :bold t)))
110 "Face used for displaying the high validity."
112 (defvar epa-mark-face 'epa-mark-face)
114 (defface epa-field-name-face
115 '((((class color) (background dark))
116 (:foreground "PaleTurquoise" :bold t))
118 "Face for the name of the attribute field."
120 (defvar epa-field-name-face 'epa-field-name-face)
122 (defface epa-field-body-face
123 '((((class color) (background dark))
124 (:foreground "turquoise" :italic t))
126 "Face for the body of the attribute field."
128 (defvar epa-field-body-face 'epa-field-body-face)
130 (defcustom epa-validity-face-alist
131 '((unknown . epa-validity-disabled-face)
132 (invalid . epa-validity-disabled-face)
133 (disabled . epa-validity-disabled-face)
134 (revoked . epa-validity-disabled-face)
135 (expired . epa-validity-disabled-face)
136 (none . epa-validity-low-face)
137 (undefined . epa-validity-low-face)
138 (never . epa-validity-low-face)
139 (marginal . epa-validity-medium-face)
140 (full . epa-validity-high-face)
141 (ultimate . epa-validity-high-face))
142 "An alist mapping validity values to faces."
146 (defcustom epa-font-lock-keywords
149 ("^\t\\([^\t:]+:\\)[ \t]*\\(.*\\)$"
150 (1 epa-field-name-face)
151 (2 epa-field-body-face)))
152 "Default expressions to addon in epa-mode."
153 :type '(repeat (list string))
156 (defconst epa-pubkey-algorithm-letter-alist
164 (defvar epa-keys-buffer nil)
165 (defvar epa-key-buffer-alist nil)
167 (defvar epa-list-keys-arguments nil)
168 (defvar epa-info-buffer nil)
170 (defvar epa-keys-mode-map
171 (let ((keymap (make-sparse-keymap)))
172 (define-key keymap "m" 'epa-mark)
173 (define-key keymap "u" 'epa-unmark)
174 (define-key keymap "d" 'epa-decrypt-file)
175 (define-key keymap "v" 'epa-verify-file)
176 (define-key keymap "s" 'epa-sign-file)
177 (define-key keymap "S" 'epa-sign-keys)
178 (define-key keymap "e" 'epa-encrypt-file)
179 (define-key keymap "r" 'epa-delete-keys)
180 (define-key keymap "i" 'epa-import-keys)
181 (define-key keymap "o" 'epa-export-keys)
182 (define-key keymap "g" 'epa-list-keys)
183 (define-key keymap "n" 'next-line)
184 (define-key keymap "p" 'previous-line)
185 (define-key keymap " " 'scroll-up)
186 (define-key keymap [delete] 'scroll-down)
187 (define-key keymap "q" 'epa-exit-buffer)
190 (defvar epa-key-mode-map
191 (let ((keymap (make-sparse-keymap)))
192 (define-key keymap "q" 'bury-buffer)
195 (defvar epa-info-mode-map
196 (let ((keymap (make-sparse-keymap)))
197 (define-key keymap "q" 'delete-window)
200 (defvar epa-exit-buffer-function #'bury-buffer)
202 (define-widget 'epa-key 'push-button
203 "Button for representing a epg-key object."
205 :button-face-get 'epa--key-widget-button-face-get
206 :value-create 'epa--key-widget-value-create
207 :action 'epa--key-widget-action
208 :help-echo 'epa--key-widget-help-echo)
210 (defun epa--key-widget-action (widget &optional event)
211 (epa--show-key (widget-get widget :value)))
213 (defun epa--key-widget-value-create (widget)
214 (let* ((key (widget-get widget :value))
215 (primary-sub-key (car (epg-key-sub-key-list key)))
216 (primary-user-id (car (epg-key-user-id-list key))))
217 (insert (format "%c "
218 (if (epg-sub-key-validity primary-sub-key)
219 (car (rassq (epg-sub-key-validity primary-sub-key)
220 epg-key-validity-alist))
222 (epg-sub-key-id primary-sub-key)
224 (if (stringp (epg-user-id-string primary-user-id))
225 (epg-user-id-string primary-user-id)
226 (epg-decode-dn (epg-user-id-string primary-user-id))))))
228 (defun epa--key-widget-button-face-get (widget)
229 (let ((validity (epg-sub-key-validity (car (epg-key-sub-key-list
230 (widget-get widget :value))))))
232 (cdr (assq validity epa-validity-face-alist))
235 (defun epa--key-widget-help-echo (widget)
237 (epg-sub-key-id (car (epg-key-sub-key-list
238 (widget-get widget :value))))))
240 (defun epa-keys-mode ()
241 "Major mode for `epa-list-keys'."
242 (kill-all-local-variables)
243 (buffer-disable-undo)
244 (setq major-mode 'epa-keys-mode
248 (use-local-map epa-keys-mode-map)
249 (set-keymap-parent (current-local-map) widget-keymap)
250 (make-local-variable 'font-lock-defaults)
251 (setq font-lock-defaults '(epa-font-lock-keywords t))
252 ;; In XEmacs, auto-initialization of font-lock is not effective
253 ;; if buffer-file-name is not set.
254 (font-lock-set-defaults)
256 (make-local-variable 'epa-exit-buffer-function)
257 (run-hooks 'epa-keys-mode-hook))
259 (defun epa-key-mode ()
260 "Major mode for a key description."
261 (kill-all-local-variables)
262 (buffer-disable-undo)
263 (setq major-mode 'epa-key-mode
267 (use-local-map epa-key-mode-map)
268 (make-local-variable 'font-lock-defaults)
269 (setq font-lock-defaults '(epa-font-lock-keywords t))
270 ;; In XEmacs, auto-initialization of font-lock is not effective
271 ;; if buffer-file-name is not set.
272 (font-lock-set-defaults)
273 (make-local-variable 'epa-exit-buffer-function)
274 (run-hooks 'epa-key-mode-hook))
276 (defun epa-info-mode ()
277 "Major mode for `epa-info-buffer'."
278 (kill-all-local-variables)
279 (buffer-disable-undo)
280 (setq major-mode 'epa-info-mode
284 (use-local-map epa-info-mode-map)
285 (run-hooks 'epa-info-mode-hook))
287 (defun epa-mark (&optional arg)
288 "Mark the current line.
289 If ARG is non-nil, unmark the current line."
291 (let ((inhibit-read-only t)
295 (setq properties (text-properties-at (point)))
297 (insert (if arg " " "*"))
298 (set-text-properties (1- (point)) (point) properties)
301 (defun epa-unmark (&optional arg)
302 "Unmark the current line.
303 If ARG is non-nil, mark the current line."
305 (epa-mark (not arg)))
307 (defun epa-toggle-mark ()
308 "Toggle the mark the current line."
310 (epa-mark (eq (char-after (save-excursion (beginning-of-line) (point))) ?*)))
312 (defun epa-exit-buffer ()
313 "Exit the current buffer.
314 `epa-exit-buffer-function' is called if it is set."
316 (funcall epa-exit-buffer-function))
319 (defun epa-list-keys (&optional name mode protocol)
321 (if current-prefix-arg
322 (let ((name (read-string "Pattern: "
323 (if epa-list-keys-arguments
324 (car epa-list-keys-arguments)))))
325 (list (if (equal name "") nil name)
326 (y-or-n-p "Secret keys? ")
327 (intern (completing-read "Protocol? "
328 '(("OpenPGP") ("CMS"))
330 (or epa-list-keys-arguments (list nil nil nil))))
331 (unless (and epa-keys-buffer
332 (buffer-live-p epa-keys-buffer))
333 (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
334 (set-buffer epa-keys-buffer)
335 (let ((inhibit-read-only t)
338 (context (epg-make-context protocol)))
339 (unless (get-text-property point 'epa-list-keys)
340 (setq point (next-single-property-change point 'epa-list-keys)))
343 (or (next-single-property-change point 'epa-list-keys)
346 (epa-insert-keys context name mode)
348 (make-local-variable 'epa-list-keys-arguments)
349 (setq epa-list-keys-arguments (list name mode protocol))
350 (goto-char (point-min))
351 (pop-to-buffer (current-buffer)))
353 (defun epa-insert-keys (context name mode)
356 (narrow-to-region (point) (point))
357 (let ((keys (epg-list-keys context name mode))
362 (add-text-properties point (point)
363 (list 'epa-key (car keys)
368 (widget-create 'epa-key :value (car keys))
370 (setq keys (cdr keys))))
371 (add-text-properties (point-min) (point-max)
372 (list 'epa-list-keys t
378 (defun epa--marked-keys ()
380 (set-buffer epa-keys-buffer)
381 (goto-char (point-min))
383 (while (re-search-forward "^\\*" nil t)
384 (if (setq key (get-text-property (match-beginning 0)
386 (setq keys (cons key keys))))
390 (let ((key (get-text-property (point) 'epa-key)))
395 (defun epa-select-keys (context prompt &optional names secret)
396 "Display a user's keyring and ask him to select keys.
397 CONTEXT is an epg-context.
398 PROMPT is a string to prompt with.
399 NAMES is a list of strings to be matched with keys. If it is nil, all
401 If SECRET is non-nil, list secret keys instead of public keys."
403 (unless (and epa-keys-buffer
404 (buffer-live-p epa-keys-buffer))
405 (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
406 (let ((inhibit-read-only t)
408 (set-buffer epa-keys-buffer)
412 :notify (lambda (&rest ignore) (abort-recursive-edit))
414 (substitute-command-keys
415 "Click here or \\[abort-recursive-edit] to cancel")
418 :notify (lambda (&rest ignore) (exit-recursive-edit))
420 (substitute-command-keys
421 "Click here or \\[exit-recursive-edit] to finish")
426 (epa-insert-keys context (car names) secret)
427 (if (get-text-property (point) 'epa-list-keys)
429 (goto-char (point-max))
430 (setq names (cdr names)))
433 (epa-insert-keys context nil secret)
434 (if (get-text-property (point) 'epa-list-keys)
436 (epa-insert-keys context nil nil)))
438 (setq epa-exit-buffer-function #'abort-recursive-edit)
439 (goto-char (point-min))
440 (pop-to-buffer (current-buffer)))
445 (if (get-buffer-window epa-keys-buffer)
446 (delete-window (get-buffer-window epa-keys-buffer)))
447 (kill-buffer epa-keys-buffer))))
449 (defun epa--show-key (key)
450 (let* ((primary-sub-key (car (epg-key-sub-key-list key)))
451 (entry (assoc (epg-sub-key-id primary-sub-key)
452 epa-key-buffer-alist))
453 (inhibit-read-only t)
457 (setq entry (cons (epg-sub-key-id primary-sub-key) nil)
458 epa-key-buffer-alist (cons entry epa-key-buffer-alist)))
459 (unless (and (cdr entry)
460 (buffer-live-p (cdr entry)))
461 (setcdr entry (generate-new-buffer
462 (format "*Key*%s" (epg-sub-key-id primary-sub-key)))))
463 (set-buffer (cdr entry))
464 (make-local-variable 'epa-key)
467 (setq pointer (epg-key-user-id-list key))
470 (if (epg-user-id-validity (car pointer))
472 (car (rassq (epg-user-id-validity (car pointer))
473 epg-key-validity-alist)))
476 (if (stringp (epg-user-id-string (car pointer)))
477 (epg-user-id-string (car pointer))
478 (epg-decode-dn (epg-user-id-string (car pointer))))
480 (setq pointer (cdr pointer)))
481 (setq pointer (epg-key-sub-key-list key))
484 (if (epg-sub-key-validity (car pointer))
486 (car (rassq (epg-sub-key-validity (car pointer))
487 epg-key-validity-alist)))
490 (epg-sub-key-id (car pointer))
493 (epg-sub-key-length (car pointer)))
495 (cdr (assq (epg-sub-key-algorithm (car pointer))
496 epg-pubkey-algorithm-alist))
498 (format-time-string "%Y-%m-%d"
499 (epg-sub-key-creation-time (car pointer)))
500 (if (epg-sub-key-expiration-time (car pointer))
501 (format "\n\tExpires: %s"
502 (format-time-string "%Y-%m-%d"
503 (epg-sub-key-expiration-time
507 (mapconcat #'symbol-name
508 (epg-sub-key-capability (car pointer))
511 (epg-sub-key-fingerprint (car pointer))
513 (setq pointer (cdr pointer)))
514 (goto-char (point-min))
515 (pop-to-buffer (current-buffer))
518 (defun epa-display-verify-result (verify-result)
519 (if epa-popup-info-window
521 (unless epa-info-buffer
522 (setq epa-info-buffer (generate-new-buffer "*Info*")))
524 (set-buffer epa-info-buffer)
525 (let ((inhibit-read-only t)
528 (insert (epg-verify-result-to-string verify-result)))
530 (pop-to-buffer epa-info-buffer)
531 (if (> (window-height) epa-info-window-height)
532 (shrink-window (- (window-height) epa-info-window-height)))
533 (goto-char (point-min)))
534 (message "%s" (epg-verify-result-to-string verify-result))))
536 (defun epa-passphrase-callback-function (context key-id handback)
538 (read-passwd "Passphrase for symmetric encryption: "
539 (eq (epg-context-operation context) 'encrypt))
542 "Passphrase for PIN: "
543 (let ((entry (assoc key-id epg-user-id-alist)))
545 (format "Passphrase for %s %s: " key-id (cdr entry))
546 (format "Passphrase for %s: " key-id)))))))
548 (defun epa-progress-callback-function (context what char current total
550 (message "%s: %d%% (%d/%d)" what
551 (if (> total 0) (floor (* (/ current (float total)) 100)) 0)
555 (defun epa-decrypt-file (file)
557 (interactive "fFile: ")
558 (let* ((default-name (file-name-sans-extension file))
559 (plain (expand-file-name
561 (concat "To file (default "
562 (file-name-nondirectory default-name)
564 (file-name-directory default-name)
566 (context (epg-make-context)))
567 (epg-context-set-passphrase-callback context
568 #'epa-passphrase-callback-function)
569 (message "Decrypting %s..." (file-name-nondirectory file))
570 (epg-decrypt-file context file plain)
571 (message "Decrypting %s...done" (file-name-nondirectory file))
572 (if (epg-context-result-for context 'verify)
573 (epa-display-verify-result (epg-context-result-for context 'verify)))))
576 (defun epa-verify-file (file)
578 (interactive "fFile: ")
579 (let* ((context (epg-make-context))
580 (plain (if (equal (file-name-extension file) "sig")
581 (file-name-sans-extension file))))
582 (message "Verifying %s..." (file-name-nondirectory file))
583 (epg-verify-file context file plain)
584 (message "Verifying %s...done" (file-name-nondirectory file))
585 (if (epg-context-result-for context 'verify)
586 (epa-display-verify-result (epg-context-result-for context 'verify)))))
589 (defun epa-sign-file (file signers mode)
590 "Sign FILE by SIGNERS keys selected."
592 (list (expand-file-name (read-file-name "File: "))
593 (epa-select-keys (epg-make-context) "Select keys for signing.
594 If no one is selected, default secret key is used. "
596 (if (y-or-n-p "Make a detached signature? ")
598 (if (y-or-n-p "Make a cleartext signature? ")
600 (let ((signature (concat file
602 (not (memq mode '(nil t normal detached))))
604 (if (memq mode '(t detached))
607 (context (epg-make-context)))
608 (epg-context-set-armor context epa-armor)
609 (epg-context-set-textmode context epa-textmode)
610 (epg-context-set-signers context signers)
611 (epg-context-set-passphrase-callback context
612 #'epa-passphrase-callback-function)
613 (message "Signing %s..." (file-name-nondirectory file))
614 (epg-sign-file context file signature mode)
615 (message "Signing %s...done" (file-name-nondirectory file))))
618 (defun epa-encrypt-file (file recipients)
619 "Encrypt FILE for RECIPIENTS."
621 (list (expand-file-name (read-file-name "File: "))
622 (epa-select-keys (epg-make-context) "Select recipients for encryption.
623 If no one is selected, symmetric encryption will be performed. ")))
624 (let ((cipher (concat file (if epa-armor ".asc" ".gpg")))
625 (context (epg-make-context)))
626 (epg-context-set-armor context epa-armor)
627 (epg-context-set-textmode context epa-textmode)
628 (epg-context-set-passphrase-callback context
629 #'epa-passphrase-callback-function)
630 (message "Encrypting %s..." (file-name-nondirectory file))
631 (epg-encrypt-file context file recipients cipher)
632 (message "Encrypting %s...done" (file-name-nondirectory file))))
635 (defun epa-decrypt-region (start end)
636 "Decrypt the current region between START and END.
638 Don't use this command in Lisp programs!"
641 (let ((context (epg-make-context))
643 (epg-context-set-passphrase-callback context
644 #'epa-passphrase-callback-function)
645 (message "Decrypting...")
646 (setq plain (epg-decrypt-string context (buffer-substring start end)))
647 (message "Decrypting...done")
648 (delete-region start end)
650 (insert (decode-coding-string plain coding-system-for-read))
651 (if (epg-context-result-for context 'verify)
652 (epa-display-verify-result (epg-context-result-for context 'verify))))))
655 (defun epa-decrypt-armor-in-region (start end)
656 "Decrypt OpenPGP armors in the current region between START and END.
658 Don't use this command in Lisp programs!"
662 (narrow-to-region start end)
664 (let (armor-start armor-end charset coding-system)
665 (while (re-search-forward "-----BEGIN PGP MESSAGE-----$" nil t)
666 (setq armor-start (match-beginning 0)
667 armor-end (re-search-forward "^-----END PGP MESSAGE-----$"
670 (error "No armor tail"))
671 (goto-char armor-start)
672 (if (re-search-forward "^Charset: \\(.*\\)" armor-end t)
673 (setq charset (match-string 1)))
674 (if coding-system-for-read
675 (setq coding-system coding-system-for-read)
677 (setq coding-system (intern (downcase charset)))
678 (setq coding-system 'utf-8)))
679 (let ((coding-system-for-read coding-system))
680 (epa-decrypt-region start end)))))))
683 (defun epa-verify-region (start end)
684 "Verify the current region between START and END.
686 Don't use this command in Lisp programs!"
688 (let ((context (epg-make-context)))
689 (epg-verify-string context
690 (encode-coding-string
691 (buffer-substring start end)
692 coding-system-for-write))
693 (if (epg-context-result-for context 'verify)
694 (epa-display-verify-result (epg-context-result-for context 'verify)))))
697 (defun epa-verify-armor-in-region (start end)
698 "Verify OpenPGP armors in the current region between START and END.
700 Don't use this command in Lisp programs!"
704 (narrow-to-region start end)
706 (let (armor-start armor-end)
707 (while (re-search-forward "-----BEGIN PGP\\( SIGNED\\)? MESSAGE-----$"
709 (setq armor-start (match-beginning 0))
710 (if (match-beginning 1) ;cleartext signed message
712 (unless (re-search-forward "^-----BEGIN PGP SIGNATURE-----$"
714 (error "Invalid cleartext signed message"))
715 (setq armor-end (re-search-forward
716 "^-----END PGP SIGNATURE-----$"
718 (setq armor-end (re-search-forward
719 "^-----END PGP MESSAGE-----$"
722 (error "No armor tail"))
723 (epa-verify-region armor-start armor-end))))))
726 (defun epa-sign-region (start end signers mode)
727 "Sign the current region between START and END by SIGNERS keys selected.
729 Don't use this command in Lisp programs!"
731 (list (region-beginning) (region-end)
732 (epa-select-keys (epg-make-context) "Select keys for signing.
733 If no one is selected, default secret key is used. "
735 (if (y-or-n-p "Make a detached signature? ")
737 (if (y-or-n-p "Make a cleartext signature? ")
740 (let ((context (epg-make-context))
742 (epg-context-set-armor context epa-armor)
743 (epg-context-set-textmode context epa-textmode)
744 (epg-context-set-signers context signers)
745 (epg-context-set-passphrase-callback context
746 #'epa-passphrase-callback-function)
747 (message "Signing...")
748 (setq signature (epg-sign-string context
749 (encode-coding-string
750 (buffer-substring start end)
751 coding-system-for-write)
753 (message "Signing...done")
754 (delete-region start end)
755 (insert (decode-coding-string signature coding-system-for-read)))))
758 (defun epa-encrypt-region (start end recipients)
759 "Encrypt the current region between START and END for RECIPIENTS.
761 Don't use this command in Lisp programs!"
763 (list (region-beginning) (region-end)
764 (epa-select-keys (epg-make-context) "Select recipients for encryption.
765 If no one is selected, symmetric encryption will be performed. ")))
767 (let ((context (epg-make-context))
769 (epg-context-set-armor context epa-armor)
770 (epg-context-set-textmode context epa-textmode)
771 (epg-context-set-passphrase-callback context
772 #'epa-passphrase-callback-function)
773 (message "Encrypting...")
774 (setq cipher (epg-encrypt-string context
775 (encode-coding-string
776 (buffer-substring start end)
777 coding-system-for-write)
779 (message "Encrypting...done")
780 (delete-region start end)
784 (defun epa-delete-keys (keys &optional allow-secret)
785 "Delete selected KEYS."
787 (let ((keys (epa--marked-keys)))
789 (error "No keys selected"))
791 (eq (nth 1 epa-list-keys-arguments) t))))
792 (let ((context (epg-make-context)))
793 (message "Deleting...")
794 (epg-delete-keys context keys allow-secret)
795 (message "Deleting...done")
796 (apply #'epa-list-keys epa-list-keys-arguments)))
799 (defun epa-import-keys (file)
800 "Import keys from FILE."
801 (interactive "fFile: ")
802 (let ((context (epg-make-context)))
803 (message "Importing %s..." (file-name-nondirectory file))
804 (epg-import-keys-from-file context (expand-file-name file))
805 (message "Importing %s...done" (file-name-nondirectory file))
806 (apply #'epa-list-keys epa-list-keys-arguments)))
809 (defun epa-export-keys (keys file)
810 "Export selected KEYS to FILE."
812 (let ((keys (epa--marked-keys))
815 (error "No keys selected"))
818 (concat (epg-sub-key-id (car (epg-key-sub-key-list (car keys))))
819 (if epa-armor ".asc" ".gpg"))
824 (concat "To file (default "
825 (file-name-nondirectory default-name)
827 (file-name-directory default-name)
829 (let ((context (epg-make-context)))
830 (epg-context-set-armor context epa-armor)
831 (message "Exporting to %s..." (file-name-nondirectory file))
832 (epg-export-keys-to-file context keys file)
833 (message "Exporting to %s...done" (file-name-nondirectory file))))
836 (defun epa-sign-keys (keys &optional local)
838 If LOCAL is non-nil, the signature is marked as non exportable."
840 (let ((keys (epa--marked-keys)))
842 (error "No keys selected"))
843 (list keys current-prefix-arg)))
844 (let ((context (epg-make-context)))
845 (epg-context-set-passphrase-callback context
846 #'epa-passphrase-callback-function)
847 (message "Signing keys...")
848 (epg-sign-keys context keys local)
849 (message "Signing keys...done")))