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)
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 (or epa-list-keys-arguments (list nil nil))))
341 (unless (and epa-keys-buffer
342 (buffer-live-p epa-keys-buffer))
343 (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
344 (set-buffer epa-keys-buffer)
345 (let ((inhibit-read-only t)
348 (context (epg-make-context epa-protocol)))
349 (unless (get-text-property point 'epa-list-keys)
350 (setq point (next-single-property-change point 'epa-list-keys)))
353 (or (next-single-property-change point 'epa-list-keys)
356 (epa--insert-keys context name mode)
359 (set-keymap-parent (current-local-map) widget-keymap))
360 (make-local-variable 'epa-list-keys-arguments)
361 (setq epa-list-keys-arguments (list name mode))
362 (goto-char (point-min))
363 (pop-to-buffer (current-buffer)))
365 (defun epa--insert-keys (context name mode)
368 (narrow-to-region (point) (point))
369 (let ((keys (epg-list-keys context name mode))
374 (add-text-properties point (point)
375 (list 'epa-key (car keys)
380 (widget-create 'epa-key :value (car keys))
382 (setq keys (cdr keys))))
383 (add-text-properties (point-min) (point-max)
384 (list 'epa-list-keys t
390 (defun epa--marked-keys ()
392 (set-buffer epa-keys-buffer)
393 (goto-char (point-min))
395 (while (re-search-forward "^\\*" nil t)
396 (if (setq key (get-text-property (match-beginning 0)
398 (setq keys (cons key keys))))
402 (let ((key (get-text-property (point) 'epa-key)))
407 (defun epa-select-keys (context prompt &optional names secret)
408 "Display a user's keyring and ask him to select keys.
409 CONTEXT is an epg-context.
410 PROMPT is a string to prompt with.
411 NAMES is a list of strings to be matched with keys. If it is nil, all
413 If SECRET is non-nil, list secret keys instead of public keys."
415 (unless (and epa-keys-buffer
416 (buffer-live-p epa-keys-buffer))
417 (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
418 (let ((inhibit-read-only t)
420 (set-buffer epa-keys-buffer)
424 :notify (lambda (&rest ignore) (abort-recursive-edit))
426 (substitute-command-keys
427 "Click here or \\[abort-recursive-edit] to cancel")
430 :notify (lambda (&rest ignore) (exit-recursive-edit))
432 (substitute-command-keys
433 "Click here or \\[exit-recursive-edit] to finish")
438 (epa--insert-keys context (car names) secret)
439 (if (get-text-property (point) 'epa-list-keys)
441 (goto-char (point-max))
442 (setq names (cdr names)))
445 (epa--insert-keys context nil secret)
446 (if (get-text-property (point) 'epa-list-keys)
448 (epa--insert-keys context nil nil)))
451 (set-keymap-parent (current-local-map) widget-keymap)
452 (setq epa-exit-buffer-function #'abort-recursive-edit)
453 (goto-char (point-min))
454 (pop-to-buffer (current-buffer)))
459 (if (get-buffer-window epa-keys-buffer)
460 (delete-window (get-buffer-window epa-keys-buffer)))
461 (kill-buffer epa-keys-buffer))))
463 (defun epa--show-key (key)
464 (let* ((primary-sub-key (car (epg-key-sub-key-list key)))
465 (entry (assoc (epg-sub-key-id primary-sub-key)
466 epa-key-buffer-alist))
467 (inhibit-read-only t)
471 (setq entry (cons (epg-sub-key-id primary-sub-key) nil)
472 epa-key-buffer-alist (cons entry epa-key-buffer-alist)))
473 (unless (and (cdr entry)
474 (buffer-live-p (cdr entry)))
475 (setcdr entry (generate-new-buffer
476 (format "*Key*%s" (epg-sub-key-id primary-sub-key)))))
477 (set-buffer (cdr entry))
478 (make-local-variable 'epa-key)
481 (setq pointer (epg-key-user-id-list key))
485 (if (epg-user-id-validity (car pointer))
487 (car (rassq (epg-user-id-validity (car pointer))
488 epg-key-validity-alist)))
491 (if (stringp (epg-user-id-string (car pointer)))
492 (epg-user-id-string (car pointer))
493 (epg-decode-dn (epg-user-id-string (car pointer))))
495 (setq pointer (cdr pointer)))
496 (setq pointer (epg-key-sub-key-list key))
499 (if (epg-sub-key-validity (car pointer))
501 (car (rassq (epg-sub-key-validity (car pointer))
502 epg-key-validity-alist)))
505 (epg-sub-key-id (car pointer))
508 (epg-sub-key-length (car pointer)))
510 (cdr (assq (epg-sub-key-algorithm (car pointer))
511 epg-pubkey-algorithm-alist))
513 (format-time-string "%Y-%m-%d"
514 (epg-sub-key-creation-time (car pointer)))
515 (if (epg-sub-key-expiration-time (car pointer))
516 (format "\n\tExpires: %s"
517 (format-time-string "%Y-%m-%d"
518 (epg-sub-key-expiration-time
522 (mapconcat #'symbol-name
523 (epg-sub-key-capability (car pointer))
526 (epg-sub-key-fingerprint (car pointer))
528 (setq pointer (cdr pointer)))
529 (goto-char (point-min))
530 (pop-to-buffer (current-buffer))
533 (defun epa-display-info (info)
534 (if epa-popup-info-window
535 (save-selected-window
536 (unless epa-info-buffer
537 (setq epa-info-buffer (generate-new-buffer "*Info*")))
539 (set-buffer epa-info-buffer)
540 (let ((inhibit-read-only t)
545 (goto-char (point-min)))
546 (if (> (window-height)
547 epa-info-window-height)
548 (set-window-buffer (split-window nil (- (window-height)
549 epa-info-window-height))
551 (pop-to-buffer epa-info-buffer)
552 (if (> (window-height) epa-info-window-height)
553 (shrink-window (- (window-height) epa-info-window-height)))))
554 (message "%s" info)))
556 (defun epa-display-verify-result (verify-result)
557 (epa-display-info (epg-verify-result-to-string verify-result)))
558 (make-obsolete 'epa-display-verify-result 'epa-display-info)
560 (defun epa-passphrase-callback-function (context key-id handback)
562 (read-passwd "Passphrase for symmetric encryption: "
563 (eq (epg-context-operation context) 'encrypt))
566 "Passphrase for PIN: "
567 (let ((entry (assoc key-id epg-user-id-alist)))
569 (format "Passphrase for %s %s: " key-id (cdr entry))
570 (format "Passphrase for %s: " key-id)))))))
572 (defun epa-progress-callback-function (context what char current total
574 (message "%s: %d%% (%d/%d)" what
575 (if (> total 0) (floor (* (/ current (float total)) 100)) 0)
579 (defun epa-decrypt-file (file)
581 (interactive "fFile: ")
582 (setq file (expand-file-name file))
583 (let* ((default-name (file-name-sans-extension file))
584 (plain (expand-file-name
586 (concat "To file (default "
587 (file-name-nondirectory default-name)
589 (file-name-directory default-name)
591 (context (epg-make-context epa-protocol)))
592 (epg-context-set-passphrase-callback context
593 #'epa-passphrase-callback-function)
594 (epg-context-set-progress-callback context
595 #'epa-progress-callback-function)
596 (message "Decrypting %s..." (file-name-nondirectory file))
597 (epg-decrypt-file context file plain)
598 (message "Decrypting %s...wrote %s" (file-name-nondirectory file)
599 (file-name-nondirectory plain))
600 (if (epg-context-result-for context 'verify)
601 (epa-display-info (epg-verify-result-to-string
602 (epg-context-result-for context 'verify))))))
605 (defun epa-verify-file (file)
607 (interactive "fFile: ")
608 (setq file (expand-file-name file))
609 (let* ((context (epg-make-context epa-protocol))
610 (plain (if (equal (file-name-extension file) "sig")
611 (file-name-sans-extension file))))
612 (epg-context-set-progress-callback context
613 #'epa-progress-callback-function)
614 (message "Verifying %s..." (file-name-nondirectory file))
615 (epg-verify-file context file plain)
616 (message "Verifying %s...done" (file-name-nondirectory file))
617 (if (epg-context-result-for context 'verify)
618 (epa-display-info (epg-verify-result-to-string
619 (epg-context-result-for context 'verify))))))
622 (defun epa-sign-file (file signers mode)
623 "Sign FILE by SIGNERS keys selected."
625 (list (expand-file-name (read-file-name "File: "))
626 (epa-select-keys (epg-make-context epa-protocol)
627 "Select keys for signing.
628 If no one is selected, default secret key is used. "
632 (message "Signature type (n,c,d,?) ")
633 (let ((c (read-char)))
635 (throw 'done 'clear))
637 (throw 'done 'detached))
639 (with-output-to-temp-buffer "*Help*"
641 (set-buffer standard-output)
643 n - Create a normal signature
644 c - Create a cleartext signature
645 d - Create a detached signature
649 (throw 'done nil))))))))
650 (let ((signature (concat file
652 (not (memq mode '(nil t normal detached))))
654 (if (memq mode '(t detached))
657 (context (epg-make-context epa-protocol)))
658 (epg-context-set-armor context epa-armor)
659 (epg-context-set-textmode context epa-textmode)
660 (epg-context-set-signers context signers)
661 (epg-context-set-passphrase-callback context
662 #'epa-passphrase-callback-function)
663 (epg-context-set-progress-callback context
664 #'epa-progress-callback-function)
665 (message "Signing %s..." (file-name-nondirectory file))
666 (epg-sign-file context file signature mode)
667 (message "Signing %s...wrote %s" (file-name-nondirectory file)
668 (file-name-nondirectory signature))))
671 (defun epa-encrypt-file (file recipients)
672 "Encrypt FILE for RECIPIENTS."
674 (list (expand-file-name (read-file-name "File: "))
675 (epa-select-keys (epg-make-context epa-protocol)
676 "Select recipients for encryption.
677 If no one is selected, symmetric encryption will be performed. ")))
678 (let ((cipher (concat file (if epa-armor ".asc" ".gpg")))
679 (context (epg-make-context epa-protocol)))
680 (epg-context-set-armor context epa-armor)
681 (epg-context-set-textmode context epa-textmode)
682 (epg-context-set-passphrase-callback context
683 #'epa-passphrase-callback-function)
684 (epg-context-set-progress-callback context
685 #'epa-progress-callback-function)
686 (message "Encrypting %s..." (file-name-nondirectory file))
687 (epg-encrypt-file context file recipients cipher)
688 (message "Encrypting %s...wrote %s" (file-name-nondirectory file)
689 (file-name-nondirectory cipher))))
692 (defun epa-decrypt-region (start end)
693 "Decrypt the current region between START and END.
695 Don't use this command in Lisp programs!"
698 (let ((context (epg-make-context epa-protocol))
700 (epg-context-set-passphrase-callback context
701 #'epa-passphrase-callback-function)
702 (epg-context-set-progress-callback context
703 #'epa-progress-callback-function)
704 (message "Decrypting...")
705 (setq plain (epg-decrypt-string context (buffer-substring start end)))
706 (message "Decrypting...done")
707 (delete-region start end)
709 (insert (epa--decode-coding-string plain coding-system-for-read))
710 (if (epg-context-result-for context 'verify)
711 (epa-display-info (epg-verify-result-to-string
712 (epg-context-result-for context 'verify)))))))
715 (defun epa-decrypt-armor-in-region (start end)
716 "Decrypt OpenPGP armors in the current region between START and END.
718 Don't use this command in Lisp programs!"
722 (narrow-to-region start end)
724 (let (armor-start armor-end charset coding-system)
725 (while (re-search-forward "-----BEGIN PGP MESSAGE-----$" nil t)
726 (setq armor-start (match-beginning 0)
727 armor-end (re-search-forward "^-----END PGP MESSAGE-----$"
730 (error "No armor tail"))
731 (goto-char armor-start)
732 (if (re-search-forward "^Charset: \\(.*\\)" armor-end t)
733 (setq charset (match-string 1)))
734 (if coding-system-for-read
735 (setq coding-system coding-system-for-read)
737 (setq coding-system (intern (downcase charset)))
738 (setq coding-system 'utf-8)))
739 (let ((coding-system-for-read coding-system))
740 (epa-decrypt-region start end)))))))
743 (defun epa-verify-region (start end)
744 "Verify the current region between START and END.
746 Don't use this command in Lisp programs!"
748 (let ((context (epg-make-context epa-protocol)))
749 (epg-context-set-progress-callback context
750 #'epa-progress-callback-function)
751 (epg-verify-string context
752 (epa--encode-coding-string
753 (buffer-substring start end)
754 coding-system-for-write))
755 (if (epg-context-result-for context 'verify)
756 (epa-display-info (epg-verify-result-to-string
757 (epg-context-result-for context 'verify))))))
760 (defun epa-verify-cleartext-in-region (start end)
761 "Verify OpenPGP cleartext signed messages in the current region
762 between START and END.
764 Don't use this command in Lisp programs!"
768 (narrow-to-region start end)
770 (let (armor-start armor-end)
771 (while (re-search-forward "-----BEGIN PGP SIGNED MESSAGE-----$"
773 (setq armor-start (match-beginning 0))
774 (unless (re-search-forward "^-----BEGIN PGP SIGNATURE-----$"
776 (error "Invalid cleartext signed message"))
777 (setq armor-end (re-search-forward
778 "^-----END PGP SIGNATURE-----$"
781 (error "No armor tail"))
782 (epa-verify-region armor-start armor-end))))))
785 (defun epa-sign-region (start end signers mode)
786 "Sign the current region between START and END by SIGNERS keys selected.
788 Don't use this command in Lisp programs!"
790 (list (region-beginning) (region-end)
791 (epa-select-keys (epg-make-context epa-protocol)
792 "Select keys for signing.
793 If no one is selected, default secret key is used. "
797 (message "Signature type (n,c,d,?) ")
798 (let ((c (read-char)))
800 (throw 'done 'clear))
802 (throw 'done 'detached))
804 (with-output-to-temp-buffer "*Help*"
806 (set-buffer standard-output)
808 n - Create a normal signature
809 c - Create a cleartext signature
810 d - Create a detached signature
814 (throw 'done nil))))))))
816 (let ((context (epg-make-context epa-protocol))
818 ;;(epg-context-set-armor context epa-armor)
819 (epg-context-set-armor context t)
820 ;;(epg-context-set-textmode context epa-textmode)
821 (epg-context-set-textmode context t)
822 (epg-context-set-signers context signers)
823 (epg-context-set-passphrase-callback context
824 #'epa-passphrase-callback-function)
825 (epg-context-set-progress-callback context
826 #'epa-progress-callback-function)
827 (message "Signing...")
828 (setq signature (epg-sign-string context
829 (epa--encode-coding-string
830 (buffer-substring start end)
831 coding-system-for-write)
833 (message "Signing...done")
834 (delete-region start end)
835 (insert (epa--decode-coding-string signature coding-system-for-read)))))
838 (defun epa-encrypt-region (start end recipients)
839 "Encrypt the current region between START and END for RECIPIENTS.
841 Don't use this command in Lisp programs!"
843 (list (region-beginning) (region-end)
844 (epa-select-keys (epg-make-context epa-protocol)
845 "Select recipients for encryption.
846 If no one is selected, symmetric encryption will be performed. ")))
848 (let ((context (epg-make-context epa-protocol))
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 epa-protocol)))
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 epa-protocol)))
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 epa-protocol)))
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 epa-protocol)))
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 epa-protocol)
960 "Select keys to export. ")))
961 (let ((context (epg-make-context epa-protocol)))
962 ;;(epg-context-set-armor context epa-armor)
963 (epg-context-set-armor context t)
964 (insert (epg-export-keys-to-string context keys))))
967 (defun epa-sign-keys (keys &optional local)
969 If a prefix-arg is specified, the signature is marked as non exportable.
971 Don't use this command in Lisp programs!"
973 (let ((keys (epa--marked-keys)))
975 (error "No keys selected"))
976 (list keys current-prefix-arg)))
977 (let ((context (epg-make-context epa-protocol)))
978 (epg-context-set-passphrase-callback context
979 #'epa-passphrase-callback-function)
980 (epg-context-set-progress-callback context
981 #'epa-progress-callback-function)
982 (message "Signing keys...")
983 (epg-sign-keys context keys local)
984 (message "Signing keys...done")))
985 (make-obsolete 'epa-sign-keys "Do not use.")