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)
333 "List all keys matched with NAME from the keyring.
334 If MODE is non-nil, it reads the private keyring. Otherwise, it
335 reads the public keyring."
337 (if current-prefix-arg
338 (let ((name (read-string "Pattern: "
339 (if epa-list-keys-arguments
340 (car epa-list-keys-arguments)))))
341 (list (if (equal name "") nil name)
342 (y-or-n-p "Secret keys? ")))
343 (or epa-list-keys-arguments (list nil nil))))
344 (unless (and epa-keys-buffer
345 (buffer-live-p epa-keys-buffer))
346 (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
347 (set-buffer epa-keys-buffer)
348 (let ((inhibit-read-only t)
351 (context (epg-make-context epa-protocol)))
352 (unless (get-text-property point 'epa-list-keys)
353 (setq point (next-single-property-change point 'epa-list-keys)))
356 (or (next-single-property-change point 'epa-list-keys)
359 (epa--insert-keys context name mode)
362 (set-keymap-parent (current-local-map) widget-keymap))
363 (make-local-variable 'epa-list-keys-arguments)
364 (setq epa-list-keys-arguments (list name mode))
365 (goto-char (point-min))
366 (pop-to-buffer (current-buffer)))
368 (defun epa--insert-keys (context name mode)
371 (narrow-to-region (point) (point))
372 (let ((keys (epg-list-keys context name mode))
377 (add-text-properties point (point)
378 (list 'epa-key (car keys)
383 (widget-create 'epa-key :value (car keys))
385 (setq keys (cdr keys))))
386 (add-text-properties (point-min) (point-max)
387 (list 'epa-list-keys t
393 (defun epa--marked-keys ()
395 (set-buffer epa-keys-buffer)
396 (goto-char (point-min))
398 (while (re-search-forward "^\\*" nil t)
399 (if (setq key (get-text-property (match-beginning 0)
401 (setq keys (cons key keys))))
405 (let ((key (get-text-property (point) 'epa-key)))
410 (defun epa-select-keys (context prompt &optional names secret)
411 "Display a user's keyring and ask him to select keys.
412 CONTEXT is an epg-context.
413 PROMPT is a string to prompt with.
414 NAMES is a list of strings to be matched with keys. If it is nil, all
416 If SECRET is non-nil, list secret keys instead of public keys."
418 (unless (and epa-keys-buffer
419 (buffer-live-p epa-keys-buffer))
420 (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
421 (let ((inhibit-read-only t)
423 (set-buffer epa-keys-buffer)
427 :notify (lambda (&rest ignore) (abort-recursive-edit))
429 (substitute-command-keys
430 "Click here or \\[abort-recursive-edit] to cancel")
433 :notify (lambda (&rest ignore) (exit-recursive-edit))
435 (substitute-command-keys
436 "Click here or \\[exit-recursive-edit] to finish")
441 (epa--insert-keys context (car names) secret)
442 (if (get-text-property (point) 'epa-list-keys)
444 (goto-char (point-max))
445 (setq names (cdr names)))
448 (epa--insert-keys context nil secret)
449 (if (get-text-property (point) 'epa-list-keys)
451 (epa--insert-keys context nil nil)))
454 (set-keymap-parent (current-local-map) widget-keymap)
455 (setq epa-exit-buffer-function #'abort-recursive-edit)
456 (goto-char (point-min))
457 (pop-to-buffer (current-buffer)))
462 (if (get-buffer-window epa-keys-buffer)
463 (delete-window (get-buffer-window epa-keys-buffer)))
464 (kill-buffer epa-keys-buffer))))
466 (defun epa--show-key (key)
467 (let* ((primary-sub-key (car (epg-key-sub-key-list key)))
468 (entry (assoc (epg-sub-key-id primary-sub-key)
469 epa-key-buffer-alist))
470 (inhibit-read-only t)
474 (setq entry (cons (epg-sub-key-id primary-sub-key) nil)
475 epa-key-buffer-alist (cons entry epa-key-buffer-alist)))
476 (unless (and (cdr entry)
477 (buffer-live-p (cdr entry)))
478 (setcdr entry (generate-new-buffer
479 (format "*Key*%s" (epg-sub-key-id primary-sub-key)))))
480 (set-buffer (cdr entry))
481 (make-local-variable 'epa-key)
484 (setq pointer (epg-key-user-id-list key))
488 (if (epg-user-id-validity (car pointer))
490 (car (rassq (epg-user-id-validity (car pointer))
491 epg-key-validity-alist)))
494 (if (stringp (epg-user-id-string (car pointer)))
495 (epg-user-id-string (car pointer))
496 (epg-decode-dn (epg-user-id-string (car pointer))))
498 (setq pointer (cdr pointer)))
499 (setq pointer (epg-key-sub-key-list key))
502 (if (epg-sub-key-validity (car pointer))
504 (car (rassq (epg-sub-key-validity (car pointer))
505 epg-key-validity-alist)))
508 (epg-sub-key-id (car pointer))
511 (epg-sub-key-length (car pointer)))
513 (cdr (assq (epg-sub-key-algorithm (car pointer))
514 epg-pubkey-algorithm-alist))
516 (format-time-string "%Y-%m-%d"
517 (epg-sub-key-creation-time (car pointer)))
518 (if (epg-sub-key-expiration-time (car pointer))
519 (format "\n\tExpires: %s"
520 (format-time-string "%Y-%m-%d"
521 (epg-sub-key-expiration-time
525 (mapconcat #'symbol-name
526 (epg-sub-key-capability (car pointer))
529 (epg-sub-key-fingerprint (car pointer))
531 (setq pointer (cdr pointer)))
532 (goto-char (point-min))
533 (pop-to-buffer (current-buffer))
536 (defun epa-display-info (info)
537 (if epa-popup-info-window
538 (save-selected-window
539 (unless epa-info-buffer
540 (setq epa-info-buffer (generate-new-buffer "*Info*")))
542 (set-buffer epa-info-buffer)
543 (let ((inhibit-read-only t)
548 (goto-char (point-min)))
549 (if (> (window-height)
550 epa-info-window-height)
551 (set-window-buffer (split-window nil (- (window-height)
552 epa-info-window-height))
554 (pop-to-buffer epa-info-buffer)
555 (if (> (window-height) epa-info-window-height)
556 (shrink-window (- (window-height) epa-info-window-height)))))
557 (message "%s" info)))
559 (defun epa-display-verify-result (verify-result)
560 (epa-display-info (epg-verify-result-to-string verify-result)))
561 (make-obsolete 'epa-display-verify-result 'epa-display-info)
563 (defun epa-passphrase-callback-function (context key-id handback)
565 (read-passwd "Passphrase for symmetric encryption: "
566 (eq (epg-context-operation context) 'encrypt))
569 "Passphrase for PIN: "
570 (let ((entry (assoc key-id epg-user-id-alist)))
572 (format "Passphrase for %s %s: " key-id (cdr entry))
573 (format "Passphrase for %s: " key-id)))))))
575 (defun epa-progress-callback-function (context what char current total
577 (message "%s: %d%% (%d/%d)" what
578 (if (> total 0) (floor (* (/ current (float total)) 100)) 0)
582 (defun epa-decrypt-file (file)
584 (interactive "fFile: ")
585 (setq file (expand-file-name file))
586 (let* ((default-name (file-name-sans-extension file))
587 (plain (expand-file-name
589 (concat "To file (default "
590 (file-name-nondirectory default-name)
592 (file-name-directory default-name)
594 (context (epg-make-context epa-protocol)))
595 (epg-context-set-passphrase-callback context
596 #'epa-passphrase-callback-function)
597 (epg-context-set-progress-callback context
598 #'epa-progress-callback-function)
599 (message "Decrypting %s..." (file-name-nondirectory file))
600 (epg-decrypt-file context file plain)
601 (message "Decrypting %s...wrote %s" (file-name-nondirectory file)
602 (file-name-nondirectory plain))
603 (if (epg-context-result-for context 'verify)
604 (epa-display-info (epg-verify-result-to-string
605 (epg-context-result-for context 'verify))))))
608 (defun epa-verify-file (file)
610 (interactive "fFile: ")
611 (setq file (expand-file-name file))
612 (let* ((context (epg-make-context epa-protocol))
613 (plain (if (equal (file-name-extension file) "sig")
614 (file-name-sans-extension file))))
615 (epg-context-set-progress-callback context
616 #'epa-progress-callback-function)
617 (message "Verifying %s..." (file-name-nondirectory file))
618 (epg-verify-file context file plain)
619 (message "Verifying %s...done" (file-name-nondirectory file))
620 (if (epg-context-result-for context 'verify)
621 (epa-display-info (epg-verify-result-to-string
622 (epg-context-result-for context 'verify))))))
625 (defun epa-sign-file (file signers mode)
626 "Sign FILE by SIGNERS keys selected."
628 (list (expand-file-name (read-file-name "File: "))
629 (epa-select-keys (epg-make-context epa-protocol)
630 "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 epa-protocol)))
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 epa-protocol)
679 "Select recipients for encryption.
680 If no one is selected, symmetric encryption will be performed. ")))
681 (let ((cipher (concat file (if epa-armor ".asc" ".gpg")))
682 (context (epg-make-context epa-protocol)))
683 (epg-context-set-armor context epa-armor)
684 (epg-context-set-textmode context epa-textmode)
685 (epg-context-set-passphrase-callback context
686 #'epa-passphrase-callback-function)
687 (epg-context-set-progress-callback context
688 #'epa-progress-callback-function)
689 (message "Encrypting %s..." (file-name-nondirectory file))
690 (epg-encrypt-file context file recipients cipher)
691 (message "Encrypting %s...wrote %s" (file-name-nondirectory file)
692 (file-name-nondirectory cipher))))
695 (defun epa-decrypt-region (start end)
696 "Decrypt the current region between START and END.
698 Don't use this command in Lisp programs!"
701 (let ((context (epg-make-context epa-protocol))
703 (epg-context-set-passphrase-callback context
704 #'epa-passphrase-callback-function)
705 (epg-context-set-progress-callback context
706 #'epa-progress-callback-function)
707 (message "Decrypting...")
708 (setq plain (epg-decrypt-string context (buffer-substring start end)))
709 (message "Decrypting...done")
710 (delete-region start end)
712 (insert (epa--decode-coding-string plain coding-system-for-read))
713 (if (epg-context-result-for context 'verify)
714 (epa-display-info (epg-verify-result-to-string
715 (epg-context-result-for context 'verify)))))))
718 (defun epa-decrypt-armor-in-region (start end)
719 "Decrypt OpenPGP armors in the current region between START and END.
721 Don't use this command in Lisp programs!"
725 (narrow-to-region start end)
727 (let (armor-start armor-end charset coding-system)
728 (while (re-search-forward "-----BEGIN PGP MESSAGE-----$" nil t)
729 (setq armor-start (match-beginning 0)
730 armor-end (re-search-forward "^-----END PGP MESSAGE-----$"
733 (error "No armor tail"))
734 (goto-char armor-start)
735 (if (re-search-forward "^Charset: \\(.*\\)" armor-end t)
736 (setq charset (match-string 1)))
737 (if coding-system-for-read
738 (setq coding-system coding-system-for-read)
740 (setq coding-system (intern (downcase charset)))
741 (setq coding-system 'utf-8)))
742 (let ((coding-system-for-read coding-system))
743 (epa-decrypt-region start end)))))))
746 (defun epa-verify-region (start end)
747 "Verify the current region between START and END.
749 Don't use this command in Lisp programs!"
751 (let ((context (epg-make-context epa-protocol)))
752 (epg-context-set-progress-callback context
753 #'epa-progress-callback-function)
754 (epg-verify-string context
755 (epa--encode-coding-string
756 (buffer-substring start end)
757 coding-system-for-write))
758 (if (epg-context-result-for context 'verify)
759 (epa-display-info (epg-verify-result-to-string
760 (epg-context-result-for context 'verify))))))
763 (defun epa-verify-cleartext-in-region (start end)
764 "Verify OpenPGP cleartext signed messages in the current region
765 between START and END.
767 Don't use this command in Lisp programs!"
771 (narrow-to-region start end)
773 (let (armor-start armor-end)
774 (while (re-search-forward "-----BEGIN PGP SIGNED MESSAGE-----$"
776 (setq armor-start (match-beginning 0))
777 (unless (re-search-forward "^-----BEGIN PGP SIGNATURE-----$"
779 (error "Invalid cleartext signed message"))
780 (setq armor-end (re-search-forward
781 "^-----END PGP SIGNATURE-----$"
784 (error "No armor tail"))
785 (epa-verify-region armor-start armor-end))))))
788 (defun epa-sign-region (start end signers mode)
789 "Sign the current region between START and END by SIGNERS keys selected.
791 Don't use this command in Lisp programs!"
793 (list (region-beginning) (region-end)
794 (epa-select-keys (epg-make-context epa-protocol)
795 "Select keys for signing.
796 If no one is selected, default secret key is used. "
800 (message "Signature type (n,c,d,?) ")
801 (let ((c (read-char)))
803 (throw 'done 'clear))
805 (throw 'done 'detached))
807 (with-output-to-temp-buffer "*Help*"
809 (set-buffer standard-output)
811 n - Create a normal signature
812 c - Create a cleartext signature
813 d - Create a detached signature
817 (throw 'done nil))))))))
819 (let ((context (epg-make-context epa-protocol))
821 ;;(epg-context-set-armor context epa-armor)
822 (epg-context-set-armor context t)
823 ;;(epg-context-set-textmode context epa-textmode)
824 (epg-context-set-textmode context t)
825 (epg-context-set-signers context signers)
826 (epg-context-set-passphrase-callback context
827 #'epa-passphrase-callback-function)
828 (epg-context-set-progress-callback context
829 #'epa-progress-callback-function)
830 (message "Signing...")
831 (setq signature (epg-sign-string context
832 (epa--encode-coding-string
833 (buffer-substring start end)
834 coding-system-for-write)
836 (message "Signing...done")
837 (delete-region start end)
838 (insert (epa--decode-coding-string signature coding-system-for-read)))))
841 (defun epa-encrypt-region (start end recipients)
842 "Encrypt the current region between START and END for RECIPIENTS.
844 Don't use this command in Lisp programs!"
846 (list (region-beginning) (region-end)
847 (epa-select-keys (epg-make-context epa-protocol)
848 "Select recipients for encryption.
849 If no one is selected, symmetric encryption will be performed. ")))
851 (let ((context (epg-make-context epa-protocol))
853 ;;(epg-context-set-armor context epa-armor)
854 (epg-context-set-armor context t)
855 ;;(epg-context-set-textmode context epa-textmode)
856 (epg-context-set-textmode context t)
857 (epg-context-set-passphrase-callback context
858 #'epa-passphrase-callback-function)
859 (epg-context-set-progress-callback context
860 #'epa-progress-callback-function)
861 (message "Encrypting...")
862 (setq cipher (epg-encrypt-string context
863 (epa--encode-coding-string
864 (buffer-substring start end)
865 coding-system-for-write)
867 (message "Encrypting...done")
868 (delete-region start end)
872 (defun epa-delete-keys (keys &optional allow-secret)
873 "Delete selected KEYS.
875 Don't use this command in Lisp programs!"
877 (let ((keys (epa--marked-keys)))
879 (error "No keys selected"))
881 (eq (nth 1 epa-list-keys-arguments) t))))
882 (let ((context (epg-make-context epa-protocol)))
883 (message "Deleting...")
884 (epg-delete-keys context keys allow-secret)
885 (message "Deleting...done")
886 (apply #'epa-list-keys epa-list-keys-arguments)))
889 (defun epa-import-keys (file)
890 "Import keys from FILE.
892 Don't use this command in Lisp programs!"
893 (interactive "fFile: ")
894 (setq file (expand-file-name file))
895 (let ((context (epg-make-context epa-protocol)))
896 (message "Importing %s..." (file-name-nondirectory file))
899 (epg-import-keys-from-file context file)
900 (message "Importing %s...done" (file-name-nondirectory file)))
902 (message "Importing %s...failed" (file-name-nondirectory file))))
903 (if (epg-context-result-for context 'import)
904 (epa-display-info (epg-import-result-to-string
905 (epg-context-result-for context 'import))))
906 (if (eq major-mode 'epa-keys-mode)
907 (apply #'epa-list-keys epa-list-keys-arguments))))
910 (defun epa-import-keys-region (start end)
911 "Import keys from the region.
913 Don't use this command in Lisp programs!"
915 (let ((context (epg-make-context epa-protocol)))
916 (message "Importing...")
919 (epg-import-keys-from-string context (buffer-substring start end))
920 (message "Importing...done"))
922 (message "Importing...failed")))
923 (if (epg-context-result-for context 'import)
924 (epa-display-info (epg-import-result-to-string
925 (epg-context-result-for context 'import))))))
928 (defun epa-export-keys (keys file)
929 "Export selected KEYS to FILE.
931 Don't use this command in Lisp programs!"
933 (let ((keys (epa--marked-keys))
936 (error "No keys selected"))
939 (concat (epg-sub-key-id (car (epg-key-sub-key-list (car keys))))
940 (if epa-armor ".asc" ".gpg"))
945 (concat "To file (default "
946 (file-name-nondirectory default-name)
948 (file-name-directory default-name)
950 (let ((context (epg-make-context epa-protocol)))
951 (epg-context-set-armor context epa-armor)
952 (message "Exporting to %s..." (file-name-nondirectory file))
953 (epg-export-keys-to-file context keys file)
954 (message "Exporting to %s...done" (file-name-nondirectory file))))
957 (defun epa-insert-keys (keys)
958 "Insert selected KEYS after the point.
960 Don't use this command in Lisp programs!"
962 (list (epa-select-keys (epg-make-context epa-protocol)
963 "Select keys to export. ")))
964 (let ((context (epg-make-context epa-protocol)))
965 ;;(epg-context-set-armor context epa-armor)
966 (epg-context-set-armor context t)
967 (insert (epg-export-keys-to-string context keys))))
970 (defun epa-sign-keys (keys &optional local)
972 If a prefix-arg is specified, the signature is marked as non exportable.
974 Don't use this command in Lisp programs!"
976 (let ((keys (epa--marked-keys)))
978 (error "No keys selected"))
979 (list keys current-prefix-arg)))
980 (let ((context (epg-make-context epa-protocol)))
981 (epg-context-set-passphrase-callback context
982 #'epa-passphrase-callback-function)
983 (epg-context-set-progress-callback context
984 #'epa-progress-callback-function)
985 (message "Signing keys...")
986 (epg-sign-keys context keys local)
987 (message "Signing keys...done")))
988 (make-obsolete 'epa-sign-keys "Do not use.")