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-protocol 'OpenPGP
36 "The default protocol."
37 :type '(choice (const :tag "OpenPGP" OpenPGP)
38 (const :tag "CMS" CMS))
41 (defcustom epa-armor nil
42 "If non-nil, epa commands create ASCII armored output."
46 (defcustom epa-textmode nil
47 "If non-nil, epa commands treat input files as text."
51 (defcustom epa-popup-info-window t
52 "If non-nil, status information from epa commands is displayed on
57 (defcustom epa-info-window-height 5
58 "Number of lines used to display status information."
62 (defgroup epa-faces nil
66 (defface epa-validity-high-face
67 '((((class color) (background dark))
68 (:foreground "PaleTurquoise" :bold t))
71 "Face used for displaying the high validity."
73 (defvar epa-validity-high-face 'epa-validity-high-face)
75 (defface epa-validity-medium-face
76 '((((class color) (background dark))
77 (:foreground "PaleTurquoise" :italic t))
80 "Face used for displaying the medium validity."
82 (defvar epa-validity-medium-face 'epa-validity-medium-face)
84 (defface epa-validity-low-face
87 "Face used for displaying the low validity."
89 (defvar epa-validity-low-face 'epa-validity-low-face)
91 (defface epa-validity-disabled-face
93 (:italic t :inverse-video t)))
94 "Face used for displaying the disabled validity."
96 (defvar epa-validity-disabled-face 'epa-validity-disabled-face)
98 (defface epa-string-face
101 (:foreground "lightyellow"))
104 (:foreground "blue4"))
107 "Face used for displaying the string."
109 (defvar epa-string-face 'epa-string-face)
111 (defface epa-mark-face
112 '((((class color) (background dark))
113 (:foreground "orange" :bold t))
115 (:foreground "red" :bold t)))
116 "Face used for displaying the high validity."
118 (defvar epa-mark-face 'epa-mark-face)
120 (defface epa-field-name-face
121 '((((class color) (background dark))
122 (:foreground "PaleTurquoise" :bold t))
124 "Face for the name of the attribute field."
126 (defvar epa-field-name-face 'epa-field-name-face)
128 (defface epa-field-body-face
129 '((((class color) (background dark))
130 (:foreground "turquoise" :italic t))
132 "Face for the body of the attribute field."
134 (defvar epa-field-body-face 'epa-field-body-face)
136 (defcustom epa-validity-face-alist
137 '((unknown . epa-validity-disabled-face)
138 (invalid . epa-validity-disabled-face)
139 (disabled . epa-validity-disabled-face)
140 (revoked . epa-validity-disabled-face)
141 (expired . epa-validity-disabled-face)
142 (none . epa-validity-low-face)
143 (undefined . epa-validity-low-face)
144 (never . epa-validity-low-face)
145 (marginal . epa-validity-medium-face)
146 (full . epa-validity-high-face)
147 (ultimate . epa-validity-high-face))
148 "An alist mapping validity values to faces."
152 (defcustom epa-font-lock-keywords
155 ("^\t\\([^\t:]+:\\)[ \t]*\\(.*\\)$"
156 (1 epa-field-name-face)
157 (2 epa-field-body-face)))
158 "Default expressions to addon in epa-mode."
159 :type '(repeat (list string))
162 (defconst epa-pubkey-algorithm-letter-alist
170 (defvar epa-keys-buffer nil)
171 (defvar epa-key-buffer-alist nil)
173 (defvar epa-list-keys-arguments nil)
174 (defvar epa-info-buffer nil)
176 (defvar epa-keys-mode-map
177 (let ((keymap (make-sparse-keymap)))
178 (define-key keymap "m" 'epa-mark)
179 (define-key keymap "u" 'epa-unmark)
180 (define-key keymap "d" 'epa-decrypt-file)
181 (define-key keymap "v" 'epa-verify-file)
182 (define-key keymap "s" 'epa-sign-file)
183 (define-key keymap "e" 'epa-encrypt-file)
184 (define-key keymap "r" 'epa-delete-keys)
185 (define-key keymap "i" 'epa-import-keys)
186 (define-key keymap "o" 'epa-export-keys)
187 (define-key keymap "g" 'epa-list-keys)
188 (define-key keymap "n" 'next-line)
189 (define-key keymap "p" 'previous-line)
190 (define-key keymap " " 'scroll-up)
191 (define-key keymap [delete] 'scroll-down)
192 (define-key keymap "q" 'epa-exit-buffer)
195 (defvar epa-key-mode-map
196 (let ((keymap (make-sparse-keymap)))
197 (define-key keymap "q" 'bury-buffer)
200 (defvar epa-info-mode-map
201 (let ((keymap (make-sparse-keymap)))
202 (define-key keymap "q" 'delete-window)
205 (defvar epa-exit-buffer-function #'bury-buffer)
207 (define-widget 'epa-key 'push-button
208 "Button for representing a epg-key object."
210 :button-face-get 'epa--key-widget-button-face-get
211 :value-create 'epa--key-widget-value-create
212 :action 'epa--key-widget-action
213 :help-echo 'epa--key-widget-help-echo)
215 (defun epa--key-widget-action (widget &optional event)
216 (epa--show-key (widget-get widget :value)))
218 (defun epa--key-widget-value-create (widget)
219 (let* ((key (widget-get widget :value))
220 (primary-sub-key (car (epg-key-sub-key-list key)))
221 (primary-user-id (car (epg-key-user-id-list key))))
222 (insert (format "%c "
223 (if (epg-sub-key-validity primary-sub-key)
224 (car (rassq (epg-sub-key-validity primary-sub-key)
225 epg-key-validity-alist))
227 (epg-sub-key-id primary-sub-key)
230 (if (stringp (epg-user-id-string primary-user-id))
231 (epg-user-id-string primary-user-id)
232 (epg-decode-dn (epg-user-id-string primary-user-id)))
235 (defun epa--key-widget-button-face-get (widget)
236 (let ((validity (epg-sub-key-validity (car (epg-key-sub-key-list
237 (widget-get widget :value))))))
239 (cdr (assq validity epa-validity-face-alist))
242 (defun epa--key-widget-help-echo (widget)
244 (epg-sub-key-id (car (epg-key-sub-key-list
245 (widget-get widget :value))))))
247 (if (fboundp 'encode-coding-string)
248 (defalias 'epa--encode-coding-string 'encode-coding-string)
249 (defalias 'epa--encode-coding-string 'identity))
251 (if (fboundp 'decode-coding-string)
252 (defalias 'epa--decode-coding-string 'decode-coding-string)
253 (defalias 'epa--decode-coding-string 'identity))
255 (defun epa-keys-mode ()
256 "Major mode for `epa-list-keys'."
257 (kill-all-local-variables)
258 (buffer-disable-undo)
259 (setq major-mode 'epa-keys-mode
263 (use-local-map epa-keys-mode-map)
264 (make-local-variable 'font-lock-defaults)
265 (setq font-lock-defaults '(epa-font-lock-keywords t))
266 ;; In XEmacs, auto-initialization of font-lock is not effective
267 ;; if buffer-file-name is not set.
268 (font-lock-set-defaults)
269 (make-local-variable 'epa-exit-buffer-function)
270 (run-hooks 'epa-keys-mode-hook))
272 (defun epa-key-mode ()
273 "Major mode for a key description."
274 (kill-all-local-variables)
275 (buffer-disable-undo)
276 (setq major-mode 'epa-key-mode
280 (use-local-map epa-key-mode-map)
281 (make-local-variable 'font-lock-defaults)
282 (setq font-lock-defaults '(epa-font-lock-keywords t))
283 ;; In XEmacs, auto-initialization of font-lock is not effective
284 ;; if buffer-file-name is not set.
285 (font-lock-set-defaults)
286 (make-local-variable 'epa-exit-buffer-function)
287 (run-hooks 'epa-key-mode-hook))
289 (defun epa-info-mode ()
290 "Major mode for `epa-info-buffer'."
291 (kill-all-local-variables)
292 (buffer-disable-undo)
293 (setq major-mode 'epa-info-mode
297 (use-local-map epa-info-mode-map)
298 (run-hooks 'epa-info-mode-hook))
300 (defun epa-mark (&optional arg)
301 "Mark the current line.
302 If ARG is non-nil, unmark the current line."
304 (let ((inhibit-read-only t)
308 (setq properties (text-properties-at (point)))
310 (insert (if arg " " "*"))
311 (set-text-properties (1- (point)) (point) properties)
314 (defun epa-unmark (&optional arg)
315 "Unmark the current line.
316 If ARG is non-nil, mark the current line."
318 (epa-mark (not arg)))
320 (defun epa-toggle-mark ()
321 "Toggle the mark the current line."
323 (epa-mark (eq (char-after (save-excursion (beginning-of-line) (point))) ?*)))
325 (defun epa-exit-buffer ()
326 "Exit the current buffer.
327 `epa-exit-buffer-function' is called if it is set."
329 (funcall epa-exit-buffer-function))
332 (defun epa-list-keys (&optional name mode protocol)
334 (if current-prefix-arg
335 (let ((name (read-string "Pattern: "
336 (if epa-list-keys-arguments
337 (car epa-list-keys-arguments)))))
338 (list (if (equal name "") nil name)
339 (y-or-n-p "Secret keys? ")
340 (intern (completing-read
341 (format "Protocol? (default %S) " epa-protocol)
342 '(("OpenPGP") ("CMS"))
343 nil t nil nil (symbol-name epa-protocol)))))
344 (or epa-list-keys-arguments (list nil nil nil))))
345 (unless (and epa-keys-buffer
346 (buffer-live-p epa-keys-buffer))
347 (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
348 (set-buffer epa-keys-buffer)
349 (let ((inhibit-read-only t)
352 (context (epg-make-context protocol)))
353 (unless (get-text-property point 'epa-list-keys)
354 (setq point (next-single-property-change point 'epa-list-keys)))
357 (or (next-single-property-change point 'epa-list-keys)
360 (epa--insert-keys context name mode)
363 (set-keymap-parent (current-local-map) widget-keymap))
364 (make-local-variable 'epa-list-keys-arguments)
365 (setq epa-list-keys-arguments (list name mode protocol))
366 (goto-char (point-min))
367 (pop-to-buffer (current-buffer)))
369 (defun epa--insert-keys (context name mode)
372 (narrow-to-region (point) (point))
373 (let ((keys (epg-list-keys context name mode))
378 (add-text-properties point (point)
379 (list 'epa-key (car keys)
384 (widget-create 'epa-key :value (car keys))
386 (setq keys (cdr keys))))
387 (add-text-properties (point-min) (point-max)
388 (list 'epa-list-keys t
394 (defun epa--marked-keys ()
396 (set-buffer epa-keys-buffer)
397 (goto-char (point-min))
399 (while (re-search-forward "^\\*" nil t)
400 (if (setq key (get-text-property (match-beginning 0)
402 (setq keys (cons key keys))))
406 (let ((key (get-text-property (point) 'epa-key)))
411 (defun epa-select-keys (context prompt &optional names secret)
412 "Display a user's keyring and ask him to select keys.
413 CONTEXT is an epg-context.
414 PROMPT is a string to prompt with.
415 NAMES is a list of strings to be matched with keys. If it is nil, all
417 If SECRET is non-nil, list secret keys instead of public keys."
419 (unless (and epa-keys-buffer
420 (buffer-live-p epa-keys-buffer))
421 (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
422 (let ((inhibit-read-only t)
424 (set-buffer epa-keys-buffer)
428 :notify (lambda (&rest ignore) (abort-recursive-edit))
430 (substitute-command-keys
431 "Click here or \\[abort-recursive-edit] to cancel")
434 :notify (lambda (&rest ignore) (exit-recursive-edit))
436 (substitute-command-keys
437 "Click here or \\[exit-recursive-edit] to finish")
442 (epa--insert-keys context (car names) secret)
443 (if (get-text-property (point) 'epa-list-keys)
445 (goto-char (point-max))
446 (setq names (cdr names)))
449 (epa--insert-keys context nil secret)
450 (if (get-text-property (point) 'epa-list-keys)
452 (epa--insert-keys context nil nil)))
455 (set-keymap-parent (current-local-map) widget-keymap)
456 (setq epa-exit-buffer-function #'abort-recursive-edit)
457 (goto-char (point-min))
458 (pop-to-buffer (current-buffer)))
463 (if (get-buffer-window epa-keys-buffer)
464 (delete-window (get-buffer-window epa-keys-buffer)))
465 (kill-buffer epa-keys-buffer))))
467 (defun epa--show-key (key)
468 (let* ((primary-sub-key (car (epg-key-sub-key-list key)))
469 (entry (assoc (epg-sub-key-id primary-sub-key)
470 epa-key-buffer-alist))
471 (inhibit-read-only t)
475 (setq entry (cons (epg-sub-key-id primary-sub-key) nil)
476 epa-key-buffer-alist (cons entry epa-key-buffer-alist)))
477 (unless (and (cdr entry)
478 (buffer-live-p (cdr entry)))
479 (setcdr entry (generate-new-buffer
480 (format "*Key*%s" (epg-sub-key-id primary-sub-key)))))
481 (set-buffer (cdr entry))
482 (make-local-variable 'epa-key)
485 (setq pointer (epg-key-user-id-list key))
489 (if (epg-user-id-validity (car pointer))
491 (car (rassq (epg-user-id-validity (car pointer))
492 epg-key-validity-alist)))
495 (if (stringp (epg-user-id-string (car pointer)))
496 (epg-user-id-string (car pointer))
497 (epg-decode-dn (epg-user-id-string (car pointer))))
499 (setq pointer (cdr pointer)))
500 (setq pointer (epg-key-sub-key-list key))
503 (if (epg-sub-key-validity (car pointer))
505 (car (rassq (epg-sub-key-validity (car pointer))
506 epg-key-validity-alist)))
509 (epg-sub-key-id (car pointer))
512 (epg-sub-key-length (car pointer)))
514 (cdr (assq (epg-sub-key-algorithm (car pointer))
515 epg-pubkey-algorithm-alist))
517 (format-time-string "%Y-%m-%d"
518 (epg-sub-key-creation-time (car pointer)))
519 (if (epg-sub-key-expiration-time (car pointer))
520 (format "\n\tExpires: %s"
521 (format-time-string "%Y-%m-%d"
522 (epg-sub-key-expiration-time
526 (mapconcat #'symbol-name
527 (epg-sub-key-capability (car pointer))
530 (epg-sub-key-fingerprint (car pointer))
532 (setq pointer (cdr pointer)))
533 (goto-char (point-min))
534 (pop-to-buffer (current-buffer))
537 (defun epa-display-info (info)
538 (if epa-popup-info-window
539 (save-selected-window
540 (unless epa-info-buffer
541 (setq epa-info-buffer (generate-new-buffer "*Info*")))
543 (set-buffer epa-info-buffer)
544 (let ((inhibit-read-only t)
549 (goto-char (point-min)))
550 (if (> (window-height)
551 epa-info-window-height)
552 (set-window-buffer (split-window nil (- (window-height)
553 epa-info-window-height))
555 (pop-to-buffer epa-info-buffer)
556 (if (> (window-height) epa-info-window-height)
557 (shrink-window (- (window-height) epa-info-window-height)))))
558 (message "%s" info)))
560 (defun epa-display-verify-result (verify-result)
561 (epa-display-info (epg-verify-result-to-string verify-result)))
562 (make-obsolete 'epa-display-verify-result 'epa-display-info)
564 (defun epa-passphrase-callback-function (context key-id handback)
566 (read-passwd "Passphrase for symmetric encryption: "
567 (eq (epg-context-operation context) 'encrypt))
570 "Passphrase for PIN: "
571 (let ((entry (assoc key-id epg-user-id-alist)))
573 (format "Passphrase for %s %s: " key-id (cdr entry))
574 (format "Passphrase for %s: " key-id)))))))
576 (defun epa-progress-callback-function (context what char current total
578 (message "%s: %d%% (%d/%d)" what
579 (if (> total 0) (floor (* (/ current (float total)) 100)) 0)
583 (defun epa-decrypt-file (file)
585 (interactive "fFile: ")
586 (setq file (expand-file-name file))
587 (let* ((default-name (file-name-sans-extension file))
588 (plain (expand-file-name
590 (concat "To file (default "
591 (file-name-nondirectory default-name)
593 (file-name-directory default-name)
595 (context (epg-make-context)))
596 (epg-context-set-passphrase-callback context
597 #'epa-passphrase-callback-function)
598 (epg-context-set-progress-callback context
599 #'epa-progress-callback-function)
600 (message "Decrypting %s..." (file-name-nondirectory file))
601 (epg-decrypt-file context file plain)
602 (message "Decrypting %s...wrote %s" (file-name-nondirectory file)
603 (file-name-nondirectory plain))
604 (if (epg-context-result-for context 'verify)
605 (epa-display-info (epg-verify-result-to-string
606 (epg-context-result-for context 'verify))))))
609 (defun epa-verify-file (file)
611 (interactive "fFile: ")
612 (setq file (expand-file-name file))
613 (let* ((context (epg-make-context))
614 (plain (if (equal (file-name-extension file) "sig")
615 (file-name-sans-extension file))))
616 (epg-context-set-progress-callback context
617 #'epa-progress-callback-function)
618 (message "Verifying %s..." (file-name-nondirectory file))
619 (epg-verify-file context file plain)
620 (message "Verifying %s...done" (file-name-nondirectory file))
621 (if (epg-context-result-for context 'verify)
622 (epa-display-info (epg-verify-result-to-string
623 (epg-context-result-for context 'verify))))))
626 (defun epa-sign-file (file signers mode)
627 "Sign FILE by SIGNERS keys selected."
629 (list (expand-file-name (read-file-name "File: "))
630 (epa-select-keys (epg-make-context) "Select keys for signing.
631 If no one is selected, default secret key is used. "
635 (message "Signature type (n,c,d,?) ")
636 (let ((c (read-char)))
638 (throw 'done 'clear))
640 (throw 'done 'detached))
642 (with-output-to-temp-buffer "*Help*"
644 (set-buffer standard-output)
646 n - Create a normal signature
647 c - Create a cleartext signature
648 d - Create a detached signature
652 (throw 'done nil))))))))
653 (let ((signature (concat file
655 (not (memq mode '(nil t normal detached))))
657 (if (memq mode '(t detached))
660 (context (epg-make-context)))
661 (epg-context-set-armor context epa-armor)
662 (epg-context-set-textmode context epa-textmode)
663 (epg-context-set-signers context signers)
664 (epg-context-set-passphrase-callback context
665 #'epa-passphrase-callback-function)
666 (epg-context-set-progress-callback context
667 #'epa-progress-callback-function)
668 (message "Signing %s..." (file-name-nondirectory file))
669 (epg-sign-file context file signature mode)
670 (message "Signing %s...wrote %s" (file-name-nondirectory file)
671 (file-name-nondirectory signature))))
674 (defun epa-encrypt-file (file recipients)
675 "Encrypt FILE for RECIPIENTS."
677 (list (expand-file-name (read-file-name "File: "))
678 (epa-select-keys (epg-make-context) "Select recipients for encryption.
679 If no one is selected, symmetric encryption will be performed. ")))
680 (let ((cipher (concat file (if epa-armor ".asc" ".gpg")))
681 (context (epg-make-context)))
682 (epg-context-set-armor context epa-armor)
683 (epg-context-set-textmode context epa-textmode)
684 (epg-context-set-passphrase-callback context
685 #'epa-passphrase-callback-function)
686 (epg-context-set-progress-callback context
687 #'epa-progress-callback-function)
688 (message "Encrypting %s..." (file-name-nondirectory file))
689 (epg-encrypt-file context file recipients cipher)
690 (message "Encrypting %s...wrote %s" (file-name-nondirectory file)
691 (file-name-nondirectory cipher))))
694 (defun epa-decrypt-region (start end)
695 "Decrypt the current region between START and END.
697 Don't use this command in Lisp programs!"
700 (let ((context (epg-make-context))
702 (epg-context-set-passphrase-callback context
703 #'epa-passphrase-callback-function)
704 (epg-context-set-progress-callback context
705 #'epa-progress-callback-function)
706 (message "Decrypting...")
707 (setq plain (epg-decrypt-string context (buffer-substring start end)))
708 (message "Decrypting...done")
709 (delete-region start end)
711 (insert (epa--decode-coding-string plain coding-system-for-read))
712 (if (epg-context-result-for context 'verify)
713 (epa-display-info (epg-verify-result-to-string
714 (epg-context-result-for context 'verify)))))))
717 (defun epa-decrypt-armor-in-region (start end)
718 "Decrypt OpenPGP armors in the current region between START and END.
720 Don't use this command in Lisp programs!"
724 (narrow-to-region start end)
726 (let (armor-start armor-end charset coding-system)
727 (while (re-search-forward "-----BEGIN PGP MESSAGE-----$" nil t)
728 (setq armor-start (match-beginning 0)
729 armor-end (re-search-forward "^-----END PGP MESSAGE-----$"
732 (error "No armor tail"))
733 (goto-char armor-start)
734 (if (re-search-forward "^Charset: \\(.*\\)" armor-end t)
735 (setq charset (match-string 1)))
736 (if coding-system-for-read
737 (setq coding-system coding-system-for-read)
739 (setq coding-system (intern (downcase charset)))
740 (setq coding-system 'utf-8)))
741 (let ((coding-system-for-read coding-system))
742 (epa-decrypt-region start end)))))))
745 (defun epa-verify-region (start end)
746 "Verify the current region between START and END.
748 Don't use this command in Lisp programs!"
750 (let ((context (epg-make-context)))
751 (epg-context-set-progress-callback context
752 #'epa-progress-callback-function)
753 (epg-verify-string context
754 (epa--encode-coding-string
755 (buffer-substring start end)
756 coding-system-for-write))
757 (if (epg-context-result-for context 'verify)
758 (epa-display-info (epg-verify-result-to-string
759 (epg-context-result-for context 'verify))))))
762 (defun epa-verify-cleartext-in-region (start end)
763 "Verify OpenPGP cleartext signed messages in the current region
764 between START and END.
766 Don't use this command in Lisp programs!"
770 (narrow-to-region start end)
772 (let (armor-start armor-end)
773 (while (re-search-forward "-----BEGIN PGP SIGNED MESSAGE-----$"
775 (setq armor-start (match-beginning 0))
776 (unless (re-search-forward "^-----BEGIN PGP SIGNATURE-----$"
778 (error "Invalid cleartext signed message"))
779 (setq armor-end (re-search-forward
780 "^-----END PGP SIGNATURE-----$"
783 (error "No armor tail"))
784 (epa-verify-region armor-start armor-end))))))
787 (defun epa-sign-region (start end signers mode)
788 "Sign the current region between START and END by SIGNERS keys selected.
790 Don't use this command in Lisp programs!"
792 (list (region-beginning) (region-end)
793 (epa-select-keys (epg-make-context) "Select keys for signing.
794 If no one is selected, default secret key is used. "
798 (message "Signature type (n,c,d,?) ")
799 (let ((c (read-char)))
801 (throw 'done 'clear))
803 (throw 'done 'detached))
805 (with-output-to-temp-buffer "*Help*"
807 (set-buffer standard-output)
809 n - Create a normal signature
810 c - Create a cleartext signature
811 d - Create a detached signature
815 (throw 'done nil))))))))
817 (let ((context (epg-make-context))
819 ;;(epg-context-set-armor context epa-armor)
820 (epg-context-set-armor context t)
821 ;;(epg-context-set-textmode context epa-textmode)
822 (epg-context-set-textmode context t)
823 (epg-context-set-signers context signers)
824 (epg-context-set-passphrase-callback context
825 #'epa-passphrase-callback-function)
826 (epg-context-set-progress-callback context
827 #'epa-progress-callback-function)
828 (message "Signing...")
829 (setq signature (epg-sign-string context
830 (epa--encode-coding-string
831 (buffer-substring start end)
832 coding-system-for-write)
834 (message "Signing...done")
835 (delete-region start end)
836 (insert (epa--decode-coding-string signature coding-system-for-read)))))
839 (defun epa-encrypt-region (start end recipients)
840 "Encrypt the current region between START and END for RECIPIENTS.
842 Don't use this command in Lisp programs!"
844 (list (region-beginning) (region-end)
845 (epa-select-keys (epg-make-context) "Select recipients for encryption.
846 If no one is selected, symmetric encryption will be performed. ")))
848 (let ((context (epg-make-context))
850 ;;(epg-context-set-armor context epa-armor)
851 (epg-context-set-armor context t)
852 ;;(epg-context-set-textmode context epa-textmode)
853 (epg-context-set-textmode context t)
854 (epg-context-set-passphrase-callback context
855 #'epa-passphrase-callback-function)
856 (epg-context-set-progress-callback context
857 #'epa-progress-callback-function)
858 (message "Encrypting...")
859 (setq cipher (epg-encrypt-string context
860 (epa--encode-coding-string
861 (buffer-substring start end)
862 coding-system-for-write)
864 (message "Encrypting...done")
865 (delete-region start end)
869 (defun epa-delete-keys (keys &optional allow-secret)
870 "Delete selected KEYS.
872 Don't use this command in Lisp programs!"
874 (let ((keys (epa--marked-keys)))
876 (error "No keys selected"))
878 (eq (nth 1 epa-list-keys-arguments) t))))
879 (let ((context (epg-make-context)))
880 (message "Deleting...")
881 (epg-delete-keys context keys allow-secret)
882 (message "Deleting...done")
883 (apply #'epa-list-keys epa-list-keys-arguments)))
886 (defun epa-import-keys (file)
887 "Import keys from FILE.
889 Don't use this command in Lisp programs!"
890 (interactive "fFile: ")
891 (setq file (expand-file-name file))
892 (let ((context (epg-make-context)))
893 (message "Importing %s..." (file-name-nondirectory file))
896 (epg-import-keys-from-file context file)
897 (message "Importing %s...done" (file-name-nondirectory file)))
899 (message "Importing %s...failed" (file-name-nondirectory file))))
900 (if (epg-context-result-for context 'import)
901 (epa-display-info (epg-import-result-to-string
902 (epg-context-result-for context 'import))))
903 (if (eq major-mode 'epa-keys-mode)
904 (apply #'epa-list-keys epa-list-keys-arguments))))
907 (defun epa-import-keys-region (start end)
908 "Import keys from the region.
910 Don't use this command in Lisp programs!"
912 (let ((context (epg-make-context)))
913 (message "Importing...")
916 (epg-import-keys-from-string context (buffer-substring start end))
917 (message "Importing...done"))
919 (message "Importing...failed")))
920 (if (epg-context-result-for context 'import)
921 (epa-display-info (epg-import-result-to-string
922 (epg-context-result-for context 'import))))))
925 (defun epa-export-keys (keys file)
926 "Export selected KEYS to FILE.
928 Don't use this command in Lisp programs!"
930 (let ((keys (epa--marked-keys))
933 (error "No keys selected"))
936 (concat (epg-sub-key-id (car (epg-key-sub-key-list (car keys))))
937 (if epa-armor ".asc" ".gpg"))
942 (concat "To file (default "
943 (file-name-nondirectory default-name)
945 (file-name-directory default-name)
947 (let ((context (epg-make-context)))
948 (epg-context-set-armor context epa-armor)
949 (message "Exporting to %s..." (file-name-nondirectory file))
950 (epg-export-keys-to-file context keys file)
951 (message "Exporting to %s...done" (file-name-nondirectory file))))
954 (defun epa-insert-keys (keys)
955 "Insert selected KEYS after the point.
957 Don't use this command in Lisp programs!"
959 (list (epa-select-keys (epg-make-context) "Select keys to export. ")))
960 (let ((context (epg-make-context)))
961 ;;(epg-context-set-armor context epa-armor)
962 (epg-context-set-armor context t)
963 (insert (epg-export-keys-to-string context keys))))
966 (defun epa-sign-keys (keys &optional local)
968 If a prefix-arg is specified, the signature is marked as non exportable.
970 Don't use this command in Lisp programs!"
972 (let ((keys (epa--marked-keys)))
974 (error "No keys selected"))
975 (list keys current-prefix-arg)))
976 (let ((context (epg-make-context)))
977 (epg-context-set-passphrase-callback context
978 #'epa-passphrase-callback-function)
979 (epg-context-set-progress-callback context
980 #'epa-progress-callback-function)
981 (message "Signing keys...")
982 (epg-sign-keys context keys local)
983 (message "Signing keys...done")))
984 (make-obsolete 'epa-sign-keys "Do not use.")