lisp/epa.el

   1 ;;; epa.el --- the EasyPG Assistant
   2 ;; Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
   3
   4 ;; Author: Daiki Ueno <ueno@unixuser.org>
   5 ;; Keywords: PGP, GnuPG
   6
   7 ;; This file is part of GNU Emacs.
   8
   9 ;; GNU Emacs 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 3 of the License, or
  12 ;; (at your option) any later version.
  13
  14 ;; GNU Emacs 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.
  18
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  21
  22 ;;; Code:
  23
  24 (require 'epg)
  25 (require 'font-lock)
  26 (require 'widget)
  27 (eval-when-compile (require 'wid-edit))
  28 (require 'derived)
  29
  30 (defgroup epa nil
  31   "The EasyPG Assistant"
  32   :version "23.1"
  33   :group 'epg)
  34
  35 (defcustom epa-popup-info-window t
  36   "If non-nil, status information from epa commands is displayed on
  37 the separate window."
  38   :type 'boolean
  39   :group 'epa)
  40
  41 (defcustom epa-info-window-height 5
  42   "Number of lines used to display status information."
  43   :type 'integer
  44   :group 'epa)
  45
  46 (defgroup epa-faces nil
  47   "Faces for epa-mode."
  48   :version "23.1"
  49   :group 'epa)
  50
  51 (defface epa-validity-high
  52   `((((class color) (background dark))
  53      (:foreground "PaleTurquoise"
  54                   ,@(if (assq ':weight custom-face-attributes)
  55                         '(:weight bold)
  56                       '(:bold t))))
  57     (t
  58      (,@(if (assq ':weight custom-face-attributes)
  59             '(:weight bold)
  60           '(:bold t)))))
  61   "Face used for displaying the high validity."
  62   :group 'epa-faces)
  63
  64 (defface epa-validity-medium
  65   `((((class color) (background dark))
  66      (:foreground "PaleTurquoise"
  67                   ,@(if (assq ':slant custom-face-attributes)
  68                         '(:slant italic)
  69                       '(:italic t))))
  70     (t
  71      (,@(if (assq ':slant custom-face-attributes)
  72             '(:slant italic)
  73           '(:italic t)))))
  74   "Face used for displaying the medium validity."
  75   :group 'epa-faces)
  76
  77 (defface epa-validity-low
  78   `((t
  79      (,@(if (assq ':slant custom-face-attributes)
  80             '(:slant italic)
  81           '(:italic t)))))
  82   "Face used for displaying the low validity."
  83   :group 'epa-faces)
  84
  85 (defface epa-validity-disabled
  86   `((t
  87      (,@(if (assq ':slant custom-face-attributes)
  88             '(:slant italic)
  89           '(:italic t))
  90         :inverse-video t)))
  91   "Face used for displaying the disabled validity."
  92   :group 'epa-faces)
  93
  94 (defface epa-string
  95   '((((class color) (background dark))
  96      (:foreground "lightyellow"))
  97     (((class color) (background light))
  98      (:foreground "blue4")))
  99   "Face used for displaying the string."
 100   :group 'epa-faces)
 101
 102 (defface epa-mark
 103   `((((class color) (background dark))
 104      (:foreground "orange"
 105                   ,@(if (assq ':weight custom-face-attributes)
 106                         '(:weight bold)
 107                       '(:bold t))))
 108     (((class color) (background light))
 109      (:foreground "red"
 110                   ,@(if (assq ':weight custom-face-attributes)
 111                         '(:weight bold)
 112                       '(:bold t))))
 113     (t
 114      (,@(if (assq ':weight custom-face-attributes)
 115             '(:weight bold)
 116           '(:bold t)))))
 117   "Face used for displaying the high validity."
 118   :group 'epa-faces)
 119
 120 (defface epa-field-name
 121   `((((class color) (background dark))
 122      (:foreground "PaleTurquoise"
 123                   ,@(if (assq ':weight custom-face-attributes)
 124                         '(:weight bold)
 125                       '(:bold t))))
 126     (t
 127      (,@(if (assq ':weight custom-face-attributes)
 128             '(:weight bold)
 129           '(:bold t)))))
 130   "Face for the name of the attribute field."
 131   :group 'epa)
 132
 133 (defface epa-field-body
 134   `((((class color) (background dark))
 135      (:foreground "turquoise"
 136                   ,@(if (assq ':slant custom-face-attributes)
 137                         '(:slant italic)
 138                       '(:italic t))))
 139     (t
 140      (,@(if (assq ':slant custom-face-attributes)
 141             '(:slant italic)
 142           '(:italic t)))))
 143   "Face for the body of the attribute field."
 144   :group 'epa)
 145
 146 (defcustom epa-validity-face-alist
 147   '((unknown . epa-validity-disabled)
 148     (invalid . epa-validity-disabled)
 149     (disabled . epa-validity-disabled)
 150     (revoked . epa-validity-disabled)
 151     (expired . epa-validity-disabled)
 152     (none . epa-validity-low)
 153     (undefined . epa-validity-low)
 154     (never . epa-validity-low)
 155     (marginal . epa-validity-medium)
 156     (full . epa-validity-high)
 157     (ultimate . epa-validity-high))
 158   "An alist mapping validity values to faces."
 159   :type '(repeat (cons symbol face))
 160   :group 'epa)
 161
 162 (defvar epa-font-lock-keywords
 163   '(("^\\*"
 164      (0 'epa-mark))
 165     ("^\t\\([^\t:]+:\\)[ \t]*\\(.*\\)$"
 166      (1 'epa-field-name)
 167      (2 'epa-field-body)))
 168   "Default expressions to addon in epa-mode.")
 169
 170 (defconst epa-pubkey-algorithm-letter-alist
 171   '((1 . ?R)
 172     (2 . ?r)
 173     (3 . ?s)
 174     (16 . ?g)
 175     (17 . ?D)
 176     (20 . ?G)))
 177
 178 (defvar epa-protocol 'OpenPGP
 179   "*The default protocol.
 180 The value can be either OpenPGP or CMS.
 181
 182 You should bind this variable with `let', but do not set it globally.")
 183
 184 (defvar epa-armor nil
 185   "*If non-nil, epa commands create ASCII armored output.
 186
 187 You should bind this variable with `let', but do not set it globally.")
 188
 189 (defvar epa-textmode nil
 190   "*If non-nil, epa commands treat input files as text.
 191
 192 You should bind this variable with `let', but do not set it globally.")
 193
 194 (defvar epa-keys-buffer nil)
 195 (defvar epa-key-buffer-alist nil)
 196 (defvar epa-key nil)
 197 (defvar epa-list-keys-arguments nil)
 198 (defvar epa-info-buffer nil)
 199 (defvar epa-last-coding-system-specified nil)
 200
 201 (defvar epa-key-list-mode-map
 202   (let ((keymap (make-sparse-keymap))
 203         (menu-map (make-sparse-keymap)))
 204     (define-key keymap "m" 'epa-mark-key)
 205     (define-key keymap "u" 'epa-unmark-key)
 206     (define-key keymap "d" 'epa-decrypt-file)
 207     (define-key keymap "v" 'epa-verify-file)
 208     (define-key keymap "s" 'epa-sign-file)
 209     (define-key keymap "e" 'epa-encrypt-file)
 210     (define-key keymap "r" 'epa-delete-keys)
 211     (define-key keymap "i" 'epa-import-keys)
 212     (define-key keymap "o" 'epa-export-keys)
 213     (define-key keymap "g" 'revert-buffer)
 214     (define-key keymap "n" 'next-line)
 215     (define-key keymap "p" 'previous-line)
 216     (define-key keymap " " 'scroll-up)
 217     (define-key keymap [delete] 'scroll-down)
 218     (define-key keymap "q" 'epa-exit-buffer)
 219     (define-key keymap [menu-bar epa-key-list-mode] (cons "Keys" menu-map))
 220     (define-key menu-map [epa-key-list-unmark-key]
 221       '(menu-item "Unmark Key" epa-unmark-key
 222                   :help "Unmark a key"))
 223     (define-key menu-map [epa-key-list-mark-key]
 224       '(menu-item "Mark Key" epa-mark-key
 225                   :help "Mark a key"))
 226     (define-key menu-map [separator-epa-file] '(menu-item "--"))
 227     (define-key menu-map [epa-verify-file]
 228       '(menu-item "Verify File..." epa-verify-file
 229                   :help "Verify FILE"))
 230     (define-key menu-map [epa-sign-file]
 231       '(menu-item "Sign File..." epa-sign-file
 232                   :help "Sign FILE by SIGNERS keys selected"))
 233     (define-key menu-map [epa-decrypt-file]
 234       '(menu-item "Decrypt File..." epa-decrypt-file
 235                   :help "Decrypt FILE"))
 236     (define-key menu-map [epa-encrypt-file]
 237       '(menu-item "Encrypt File..." epa-encrypt-file
 238                   :help "Encrypt FILE for RECIPIENTS"))
 239     (define-key menu-map [separator-epa-key-list] '(menu-item "--"))
 240     (define-key menu-map [epa-key-list-delete-keys]
 241       '(menu-item "Delete keys" epa-delete-keys
 242                   :help "Delete Marked Keys"))
 243     (define-key menu-map [epa-key-list-import-keys]
 244       '(menu-item "Import Keys" epa-import-keys
 245                   :help "Import keys from a file"))
 246     (define-key menu-map [epa-key-list-export-keys]
 247       '(menu-item "Export Keys" epa-export-keys
 248                   :help "Export marked keys to a file"))
 249     keymap))
 250
 251 (defvar epa-key-mode-map
 252   (let ((keymap (make-sparse-keymap)))
 253     (define-key keymap "q" 'epa-exit-buffer)
 254     keymap))
 255
 256 (defvar epa-info-mode-map
 257   (let ((keymap (make-sparse-keymap)))
 258     (define-key keymap "q" 'delete-window)
 259     keymap))
 260
 261 (defvar epa-exit-buffer-function #'bury-buffer)
 262
 263 (define-widget 'epa-key 'push-button
 264   "Button for representing a epg-key object."
 265   :format "%[%v%]"
 266   :button-face-get 'epa--key-widget-button-face-get
 267   :value-create 'epa--key-widget-value-create
 268   :action 'epa--key-widget-action
 269   :help-echo 'epa--key-widget-help-echo)
 270
 271 (defun epa--key-widget-action (widget &optional event)
 272   (save-selected-window
 273     (epa--show-key (widget-get widget :value))))
 274
 275 (defun epa--key-widget-value-create (widget)
 276   (let* ((key (widget-get widget :value))
 277          (primary-sub-key (car (epg-key-sub-key-list key)))
 278          (primary-user-id (car (epg-key-user-id-list key))))
 279     (insert (format "%c "
 280                     (if (epg-sub-key-validity primary-sub-key)
 281                         (car (rassq (epg-sub-key-validity primary-sub-key)
 282                                     epg-key-validity-alist))
 283                       ? ))
 284             (epg-sub-key-id primary-sub-key)
 285             " "
 286             (if primary-user-id
 287                 (if (stringp (epg-user-id-string primary-user-id))
 288                     (epg-user-id-string primary-user-id)
 289                   (epg-decode-dn (epg-user-id-string primary-user-id)))
 290               ""))))
 291
 292 (defun epa--key-widget-button-face-get (widget)
 293   (let ((validity (epg-sub-key-validity (car (epg-key-sub-key-list
 294                                               (widget-get widget :value))))))
 295     (if validity
 296         (cdr (assq validity epa-validity-face-alist))
 297       'default)))
 298
 299 (defun epa--key-widget-help-echo (widget)
 300   (format "Show %s"
 301           (epg-sub-key-id (car (epg-key-sub-key-list
 302                                 (widget-get widget :value))))))
 303
 304 (eval-and-compile
 305   (if (fboundp 'encode-coding-string)
 306       (defalias 'epa--encode-coding-string 'encode-coding-string)
 307     (defalias 'epa--encode-coding-string 'identity)))
 308
 309 (eval-and-compile
 310   (if (fboundp 'decode-coding-string)
 311       (defalias 'epa--decode-coding-string 'decode-coding-string)
 312     (defalias 'epa--decode-coding-string 'identity)))
 313
 314 (defun epa-key-list-mode ()
 315   "Major mode for `epa-list-keys'."
 316   (kill-all-local-variables)
 317   (buffer-disable-undo)
 318   (setq major-mode 'epa-key-list-mode
 319         mode-name "Keys"
 320         truncate-lines t
 321         buffer-read-only t)
 322   (use-local-map epa-key-list-mode-map)
 323   (make-local-variable 'font-lock-defaults)
 324   (setq font-lock-defaults '(epa-font-lock-keywords t))
 325   ;; In XEmacs, auto-initialization of font-lock is not effective
 326   ;; if buffer-file-name is not set.
 327   (font-lock-set-defaults)
 328   (make-local-variable 'epa-exit-buffer-function)
 329   (make-local-variable 'revert-buffer-function)
 330   (setq revert-buffer-function 'epa--key-list-revert-buffer)
 331   (run-mode-hooks 'epa-key-list-mode-hook))
 332
 333 (defun epa-key-mode ()
 334   "Major mode for a key description."
 335   (kill-all-local-variables)
 336   (buffer-disable-undo)
 337   (setq major-mode 'epa-key-mode
 338         mode-name "Key"
 339         truncate-lines t
 340         buffer-read-only t)
 341   (use-local-map epa-key-mode-map)
 342   (make-local-variable 'font-lock-defaults)
 343   (setq font-lock-defaults '(epa-font-lock-keywords t))
 344   ;; In XEmacs, auto-initialization of font-lock is not effective
 345   ;; if buffer-file-name is not set.
 346   (font-lock-set-defaults)
 347   (make-local-variable 'epa-exit-buffer-function)
 348   (run-mode-hooks 'epa-key-mode-hook))
 349
 350 (defun epa-info-mode ()
 351   "Major mode for `epa-info-buffer'."
 352   (kill-all-local-variables)
 353   (buffer-disable-undo)
 354   (setq major-mode 'epa-info-mode
 355         mode-name "Info"
 356         truncate-lines t
 357         buffer-read-only t)
 358   (use-local-map epa-info-mode-map)
 359   (run-mode-hooks 'epa-info-mode-hook))
 360
 361 (defun epa-mark-key (&optional arg)
 362   "Mark a key on the current line.
 363 If ARG is non-nil, unmark the key."
 364   (interactive "P")
 365   (let ((inhibit-read-only t)
 366         buffer-read-only
 367         properties)
 368     (beginning-of-line)
 369     (unless (get-text-property (point) 'epa-key)
 370       (error "No key on this line"))
 371     (setq properties (text-properties-at (point)))
 372     (delete-char 1)
 373     (insert (if arg " " "*"))
 374     (set-text-properties (1- (point)) (point) properties)
 375     (forward-line)))
 376
 377 (defun epa-unmark-key (&optional arg)
 378   "Unmark a key on the current line.
 379 If ARG is non-nil, mark the key."
 380   (interactive "P")
 381   (epa-mark-key (not arg)))
 382
 383 (defun epa-exit-buffer ()
 384   "Exit the current buffer.
 385 `epa-exit-buffer-function' is called if it is set."
 386   (interactive)
 387   (funcall epa-exit-buffer-function))
 388
 389 (defun epa--insert-keys (keys)
 390   (save-excursion
 391     (save-restriction
 392       (narrow-to-region (point) (point))
 393       (let (point)
 394         (while keys
 395           (setq point (point))
 396           (insert "  ")
 397           (add-text-properties point (point)
 398                                (list 'epa-key (car keys)
 399                                      'front-sticky nil
 400                                      'rear-nonsticky t
 401                                      'start-open t
 402                                      'end-open t))
 403           (widget-create 'epa-key :value (car keys))
 404           (insert "\n")
 405           (setq keys (cdr keys))))
 406       (add-text-properties (point-min) (point-max)
 407                            (list 'epa-list-keys t
 408                                  'front-sticky nil
 409                                  'rear-nonsticky t
 410                                  'start-open t
 411                                  'end-open t)))))
 412
 413 (defun epa--list-keys (name secret)
 414   (unless (and epa-keys-buffer
 415                (buffer-live-p epa-keys-buffer))
 416     (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
 417   (set-buffer epa-keys-buffer)
 418   (epa-key-list-mode)
 419   (let ((inhibit-read-only t)
 420         buffer-read-only
 421         (point (point-min))
 422         (context (epg-make-context epa-protocol)))
 423     (unless (get-text-property point 'epa-list-keys)
 424       (setq point (next-single-property-change point 'epa-list-keys)))
 425     (when point
 426       (delete-region point
 427                      (or (next-single-property-change point 'epa-list-keys)
 428                          (point-max)))
 429       (goto-char point))
 430     (epa--insert-keys (epg-list-keys context name secret))
 431     (widget-setup)
 432     (set-keymap-parent (current-local-map) widget-keymap))
 433   (make-local-variable 'epa-list-keys-arguments)
 434   (setq epa-list-keys-arguments (list name secret))
 435   (goto-char (point-min))
 436   (pop-to-buffer (current-buffer)))
 437
 438 ;;;###autoload
 439 (defun epa-list-keys (&optional name)
 440   "List all keys matched with NAME from the public keyring."
 441   (interactive
 442    (if current-prefix-arg
 443        (let ((name (read-string "Pattern: "
 444                                 (if epa-list-keys-arguments
 445                                     (car epa-list-keys-arguments)))))
 446          (list (if (equal name "") nil name)))
 447      (list nil)))
 448   (epa--list-keys name nil))
 449
 450 ;;;###autoload
 451 (defun epa-list-secret-keys (&optional name)
 452   "List all keys matched with NAME from the private keyring."
 453   (interactive
 454    (if current-prefix-arg
 455        (let ((name (read-string "Pattern: "
 456                                 (if epa-list-keys-arguments
 457                                     (car epa-list-keys-arguments)))))
 458          (list (if (equal name "") nil name)))
 459      (list nil)))
 460   (epa--list-keys name t))
 461
 462 (defun epa--key-list-revert-buffer (&optional ignore-auto noconfirm)
 463   (apply #'epa--list-keys epa-list-keys-arguments))
 464
 465 (defun epa--marked-keys ()
 466   (or (with-current-buffer epa-keys-buffer
 467         (goto-char (point-min))
 468         (let (keys key)
 469           (while (re-search-forward "^\\*" nil t)
 470             (if (setq key (get-text-property (match-beginning 0)
 471                                              'epa-key))
 472                 (setq keys (cons key keys))))
 473           (nreverse keys)))
 474       (save-excursion
 475         (beginning-of-line)
 476         (let ((key (get-text-property (point) 'epa-key)))
 477           (if key
 478               (list key))))))
 479
 480 (defun epa--select-keys (prompt keys)
 481   (unless (and epa-keys-buffer
 482                (buffer-live-p epa-keys-buffer))
 483     (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
 484   (with-current-buffer epa-keys-buffer
 485     (epa-key-list-mode)
 486     (let ((inhibit-read-only t)
 487           buffer-read-only)
 488       (erase-buffer)
 489       (insert prompt "\n"
 490               (substitute-command-keys "\
 491 - `\\[epa-mark-key]' to mark a key on the line
 492 - `\\[epa-unmark-key]' to unmark a key on the line\n"))
 493       (widget-create 'link
 494                      :notify (lambda (&rest ignore) (abort-recursive-edit))
 495                      :help-echo
 496                      (substitute-command-keys
 497                       "Click here or \\[abort-recursive-edit] to cancel")
 498                      "Cancel")
 499       (widget-create 'link
 500                      :notify (lambda (&rest ignore) (exit-recursive-edit))
 501                      :help-echo
 502                      (substitute-command-keys
 503                       "Click here or \\[exit-recursive-edit] to finish")
 504                      "OK")
 505       (insert "\n\n")
 506       (epa--insert-keys keys)
 507       (widget-setup)
 508       (set-keymap-parent (current-local-map) widget-keymap)
 509       (setq epa-exit-buffer-function #'abort-recursive-edit)
 510       (goto-char (point-min))
 511       (let ((display-buffer-mark-dedicated 'soft))
 512         (pop-to-buffer (current-buffer))))
 513     (unwind-protect
 514         (progn
 515           (recursive-edit)
 516           (epa--marked-keys))
 517       (kill-buffer epa-keys-buffer))))
 518
 519 ;;;###autoload
 520 (defun epa-select-keys (context prompt &optional names secret)
 521   "Display a user's keyring and ask him to select keys.
 522 CONTEXT is an epg-context.
 523 PROMPT is a string to prompt with.
 524 NAMES is a list of strings to be matched with keys.  If it is nil, all
 525 the keys are listed.
 526 If SECRET is non-nil, list secret keys instead of public keys."
 527   (let ((keys (epg-list-keys context names secret)))
 528     (epa--select-keys prompt keys)))
 529
 530 (defun epa--show-key (key)
 531   (let* ((primary-sub-key (car (epg-key-sub-key-list key)))
 532          (entry (assoc (epg-sub-key-id primary-sub-key)
 533                        epa-key-buffer-alist))
 534          (inhibit-read-only t)
 535          buffer-read-only
 536          pointer)
 537     (unless entry
 538       (setq entry (cons (epg-sub-key-id primary-sub-key) nil)
 539             epa-key-buffer-alist (cons entry epa-key-buffer-alist)))
 540     (unless (and (cdr entry)
 541                  (buffer-live-p (cdr entry)))
 542       (setcdr entry (generate-new-buffer
 543                      (format "*Key*%s" (epg-sub-key-id primary-sub-key)))))
 544     (set-buffer (cdr entry))
 545     (epa-key-mode)
 546     (make-local-variable 'epa-key)
 547     (setq epa-key key)
 548     (erase-buffer)
 549     (setq pointer (epg-key-user-id-list key))
 550     (while pointer
 551       (if (car pointer)
 552           (insert " "
 553                   (if (epg-user-id-validity (car pointer))
 554                       (char-to-string
 555                        (car (rassq (epg-user-id-validity (car pointer))
 556                                    epg-key-validity-alist)))
 557                     " ")
 558                   " "
 559                   (if (stringp (epg-user-id-string (car pointer)))
 560                       (epg-user-id-string (car pointer))
 561                     (epg-decode-dn (epg-user-id-string (car pointer))))
 562                   "\n"))
 563       (setq pointer (cdr pointer)))
 564     (setq pointer (epg-key-sub-key-list key))
 565     (while pointer
 566       (insert " "
 567               (if (epg-sub-key-validity (car pointer))
 568                   (char-to-string
 569                    (car (rassq (epg-sub-key-validity (car pointer))
 570                                epg-key-validity-alist)))
 571                 " ")
 572               " "
 573               (epg-sub-key-id (car pointer))
 574               " "
 575               (format "%dbits"
 576                       (epg-sub-key-length (car pointer)))
 577               " "
 578               (cdr (assq (epg-sub-key-algorithm (car pointer))
 579                          epg-pubkey-algorithm-alist))
 580               "\n\tCreated: "
 581               (condition-case nil
 582                   (format-time-string "%Y-%m-%d"
 583                                       (epg-sub-key-creation-time (car pointer)))
 584                 (error "????-??-??"))
 585               (if (epg-sub-key-expiration-time (car pointer))
 586                   (format (if (time-less-p (current-time)
 587                                            (epg-sub-key-expiration-time
 588                                             (car pointer)))
 589                               "\n\tExpires: %s"
 590                             "\n\tExpired: %s")
 591                           (condition-case nil
 592                               (format-time-string "%Y-%m-%d"
 593                                                   (epg-sub-key-expiration-time
 594                                                    (car pointer)))
 595                             (error "????-??-??")))
 596                 "")
 597               "\n\tCapabilities: "
 598               (mapconcat #'symbol-name
 599                          (epg-sub-key-capability (car pointer))
 600                          " ")
 601               "\n\tFingerprint: "
 602               (epg-sub-key-fingerprint (car pointer))
 603               "\n")
 604       (setq pointer (cdr pointer)))
 605     (goto-char (point-min))
 606     (pop-to-buffer (current-buffer))))
 607
 608 (defun epa-display-info (info)
 609   (if epa-popup-info-window
 610       (save-selected-window
 611         (unless (and epa-info-buffer (buffer-live-p epa-info-buffer))
 612           (setq epa-info-buffer (generate-new-buffer "*Info*")))
 613         (if (get-buffer-window epa-info-buffer)
 614             (delete-window (get-buffer-window epa-info-buffer)))
 615         (with-current-buffer epa-info-buffer
 616           (let ((inhibit-read-only t)
 617                 buffer-read-only)
 618             (erase-buffer)
 619             (insert info))
 620           (epa-info-mode)
 621           (goto-char (point-min)))
 622         (if (> (window-height)
 623                epa-info-window-height)
 624             (set-window-buffer (split-window nil (- (window-height)
 625                                                     epa-info-window-height))
 626                                epa-info-buffer)
 627           (pop-to-buffer epa-info-buffer)
 628           (if (> (window-height) epa-info-window-height)
 629               (shrink-window (- (window-height) epa-info-window-height)))))
 630     (message "%s" info)))
 631
 632 (defun epa-display-verify-result (verify-result)
 633   (epa-display-info (epg-verify-result-to-string verify-result)))
 634 (make-obsolete 'epa-display-verify-result 'epa-display-info "23.1")
 635
 636 (defun epa-passphrase-callback-function (context key-id handback)
 637   (if (eq key-id 'SYM)
 638       (read-passwd "Passphrase for symmetric encryption: "
 639                    (eq (epg-context-operation context) 'encrypt))
 640     (read-passwd
 641      (if (eq key-id 'PIN)
 642         "Passphrase for PIN: "
 643        (let ((entry (assoc key-id epg-user-id-alist)))
 644          (if entry
 645              (format "Passphrase for %s %s: " key-id (cdr entry))
 646            (format "Passphrase for %s: " key-id)))))))
 647
 648 (defun epa-progress-callback-function (context what char current total
 649                                                handback)
 650   (message "%s%d%% (%d/%d)" (or handback
 651                                 (concat what ": "))
 652            (if (> total 0) (floor (* (/ current (float total)) 100)) 0)
 653            current total))
 654
 655 ;;;###autoload
 656 (defun epa-decrypt-file (file)
 657   "Decrypt FILE."
 658   (interactive "fFile: ")
 659   (setq file (expand-file-name file))
 660   (let* ((default-name (file-name-sans-extension file))
 661          (plain (expand-file-name
 662                  (read-file-name
 663                   (concat "To file (default "
 664                           (file-name-nondirectory default-name)
 665                           ") ")
 666                   (file-name-directory default-name)
 667                   default-name)))
 668          (context (epg-make-context epa-protocol)))
 669     (epg-context-set-passphrase-callback context
 670                                          #'epa-passphrase-callback-function)
 671     (epg-context-set-progress-callback context
 672                                        (cons
 673                                         #'epa-progress-callback-function
 674                                         (format "Decrypting %s..."
 675                                                 (file-name-nondirectory file))))
 676     (message "Decrypting %s..." (file-name-nondirectory file))
 677     (epg-decrypt-file context file plain)
 678     (message "Decrypting %s...wrote %s" (file-name-nondirectory file)
 679              (file-name-nondirectory plain))
 680     (if (epg-context-result-for context 'verify)
 681         (epa-display-info (epg-verify-result-to-string
 682                            (epg-context-result-for context 'verify))))))
 683
 684 ;;;###autoload
 685 (defun epa-verify-file (file)
 686   "Verify FILE."
 687   (interactive "fFile: ")
 688   (setq file (expand-file-name file))
 689   (let* ((context (epg-make-context epa-protocol))
 690          (plain (if (equal (file-name-extension file) "sig")
 691                     (file-name-sans-extension file))))
 692     (epg-context-set-progress-callback context
 693                                        (cons
 694                                         #'epa-progress-callback-function
 695                                         (format "Verifying %s..."
 696                                                 (file-name-nondirectory file))))
 697     (message "Verifying %s..." (file-name-nondirectory file))
 698     (epg-verify-file context file plain)
 699     (message "Verifying %s...done" (file-name-nondirectory file))
 700     (if (epg-context-result-for context 'verify)
 701         (epa-display-info (epg-verify-result-to-string
 702                            (epg-context-result-for context 'verify))))))
 703
 704 (defun epa--read-signature-type ()
 705   (let (type c)
 706     (while (null type)
 707       (message "Signature type (n,c,d,?) ")
 708       (setq c (read-char))
 709       (cond ((eq c ?c)
 710              (setq type 'clear))
 711             ((eq c ?d)
 712              (setq type 'detached))
 713             ((eq c ??)
 714              (with-output-to-temp-buffer "*Help*"
 715                (with-current-buffer standard-output
 716                  (insert "\
 717 n - Create a normal signature
 718 c - Create a cleartext signature
 719 d - Create a detached signature
 720 ? - Show this help
 721 "))))
 722             (t
 723              (setq type 'normal))))
 724     type))
 725
 726 ;;;###autoload
 727 (defun epa-sign-file (file signers mode)
 728   "Sign FILE by SIGNERS keys selected."
 729   (interactive
 730    (let ((verbose current-prefix-arg))
 731      (list (expand-file-name (read-file-name "File: "))
 732            (if verbose
 733                (epa-select-keys (epg-make-context epa-protocol)
 734                                 "Select keys for signing.
 735 If no one is selected, default secret key is used.  "
 736                                 nil t))
 737            (if verbose
 738                (epa--read-signature-type)
 739              'clear))))
 740   (let ((signature (concat file
 741                            (if (eq epa-protocol 'OpenPGP)
 742                                (if (or epa-armor
 743                                        (not (memq mode
 744                                                   '(nil t normal detached))))
 745                                    ".asc"
 746                                  (if (memq mode '(t detached))
 747                                      ".sig"
 748                                    ".gpg"))
 749                              (if (memq mode '(t detached))
 750                                  ".p7s"
 751                                ".p7m"))))
 752         (context (epg-make-context epa-protocol)))
 753     (epg-context-set-armor context epa-armor)
 754     (epg-context-set-textmode context epa-textmode)
 755     (epg-context-set-signers context signers)
 756     (epg-context-set-passphrase-callback context
 757                                          #'epa-passphrase-callback-function)
 758     (epg-context-set-progress-callback context
 759                                        (cons
 760                                         #'epa-progress-callback-function
 761                                         (format "Signing %s..."
 762                                                 (file-name-nondirectory file))))
 763     (message "Signing %s..." (file-name-nondirectory file))
 764     (epg-sign-file context file signature mode)
 765     (message "Signing %s...wrote %s" (file-name-nondirectory file)
 766              (file-name-nondirectory signature))))
 767
 768 ;;;###autoload
 769 (defun epa-encrypt-file (file recipients)
 770   "Encrypt FILE for RECIPIENTS."
 771   (interactive
 772    (list (expand-file-name (read-file-name "File: "))
 773          (epa-select-keys (epg-make-context epa-protocol)
 774                           "Select recipients for encryption.
 775 If no one is selected, symmetric encryption will be performed.  ")))
 776   (let ((cipher (concat file (if (eq epa-protocol 'OpenPGP)
 777                                  (if epa-armor ".asc" ".gpg")
 778                                ".p7m")))
 779         (context (epg-make-context epa-protocol)))
 780     (epg-context-set-armor context epa-armor)
 781     (epg-context-set-textmode context epa-textmode)
 782     (epg-context-set-passphrase-callback context
 783                                          #'epa-passphrase-callback-function)
 784     (epg-context-set-progress-callback context
 785                                        (cons
 786                                         #'epa-progress-callback-function
 787                                         (format "Encrypting %s..."
 788                                                 (file-name-nondirectory file))))
 789     (message "Encrypting %s..." (file-name-nondirectory file))
 790     (epg-encrypt-file context file recipients cipher)
 791     (message "Encrypting %s...wrote %s" (file-name-nondirectory file)
 792              (file-name-nondirectory cipher))))
 793
 794 ;;;###autoload
 795 (defun epa-decrypt-region (start end)
 796   "Decrypt the current region between START and END.
 797
 798 Don't use this command in Lisp programs!
 799 Since this function operates on regions, it does some tricks such
 800 as coding-system detection and unibyte/multibyte conversion.  If
 801 you are sure how the data in the region should be treated, you
 802 should consider using the string based counterpart
 803 `epg-decrypt-string', or the file based counterpart
 804 `epg-decrypt-file' instead.
 805
 806 For example:
 807
 808 \(let ((context (epg-make-context 'OpenPGP)))
 809   (decode-coding-string
 810     (epg-decrypt-string context (buffer-substring start end))
 811     'utf-8))"
 812   (interactive "r")
 813   (save-excursion
 814     (let ((context (epg-make-context epa-protocol))
 815           plain)
 816       (epg-context-set-passphrase-callback context
 817                                            #'epa-passphrase-callback-function)
 818       (epg-context-set-progress-callback context
 819                                          (cons
 820                                           #'epa-progress-callback-function
 821                                           "Decrypting..."))
 822       (message "Decrypting...")
 823       (setq plain (epg-decrypt-string context (buffer-substring start end)))
 824       (message "Decrypting...done")
 825       (setq plain (epa--decode-coding-string
 826                    plain
 827                    (or coding-system-for-read
 828                        (get-text-property start 'epa-coding-system-used)
 829                        'undecided)))
 830       (if (y-or-n-p "Replace the original text? ")
 831           (let ((inhibit-read-only t)
 832                 buffer-read-only)
 833             (delete-region start end)
 834             (goto-char start)
 835             (insert plain))
 836         (with-output-to-temp-buffer "*Temp*"
 837           (set-buffer standard-output)
 838           (insert plain)
 839           (epa-info-mode)))
 840       (if (epg-context-result-for context 'verify)
 841           (epa-display-info (epg-verify-result-to-string
 842                              (epg-context-result-for context 'verify)))))))
 843
 844 (defun epa--find-coding-system-for-mime-charset (mime-charset)
 845   (if (featurep 'xemacs)
 846       (if (fboundp 'find-coding-system)
 847           (find-coding-system mime-charset))
 848     (let ((pointer (coding-system-list)))
 849       (while (and pointer
 850                   (eq (coding-system-get (car pointer) 'mime-charset)
 851                       mime-charset))
 852         (setq pointer (cdr pointer)))
 853       pointer)))
 854
 855 ;;;###autoload
 856 (defun epa-decrypt-armor-in-region (start end)
 857   "Decrypt OpenPGP armors in the current region between START and END.
 858
 859 Don't use this command in Lisp programs!
 860 See the reason described in the `epa-decrypt-region' documentation."
 861   (interactive "r")
 862   (save-excursion
 863     (save-restriction
 864       (narrow-to-region start end)
 865       (goto-char start)
 866       (let (armor-start armor-end)
 867         (while (re-search-forward "-----BEGIN PGP MESSAGE-----$" nil t)
 868           (setq armor-start (match-beginning 0)
 869                 armor-end (re-search-forward "^-----END PGP MESSAGE-----$"
 870                                              nil t))
 871           (unless armor-end
 872             (error "No armor tail"))
 873           (goto-char armor-start)
 874           (let ((coding-system-for-read
 875                  (or coding-system-for-read
 876                      (if (re-search-forward "^Charset: \\(.*\\)" armor-end t)
 877                          (epa--find-coding-system-for-mime-charset
 878                           (intern (downcase (match-string 1))))))))
 879             (goto-char armor-end)
 880             (epa-decrypt-region armor-start armor-end)))))))
 881
 882 ;;;###autoload
 883 (defun epa-verify-region (start end)
 884   "Verify the current region between START and END.
 885
 886 Don't use this command in Lisp programs!
 887 Since this function operates on regions, it does some tricks such
 888 as coding-system detection and unibyte/multibyte conversion.  If
 889 you are sure how the data in the region should be treated, you
 890 should consider using the string based counterpart
 891 `epg-verify-string', or the file based counterpart
 892 `epg-verify-file' instead.
 893
 894 For example:
 895
 896 \(let ((context (epg-make-context 'OpenPGP)))
 897   (decode-coding-string
 898     (epg-verify-string context (buffer-substring start end))
 899     'utf-8))"
 900   (interactive "r")
 901   (let ((context (epg-make-context epa-protocol))
 902         plain)
 903     (epg-context-set-progress-callback context
 904                                        (cons
 905                                         #'epa-progress-callback-function
 906                                         "Verifying..."))
 907     (message "Verifying...")
 908     (setq plain (epg-verify-string
 909                  context
 910                  (epa--encode-coding-string
 911                   (buffer-substring start end)
 912                   (or coding-system-for-write
 913                       (get-text-property start 'epa-coding-system-used)))))
 914     (message "Verifying...done")
 915     (setq plain (epa--decode-coding-string
 916                  plain
 917                  (or coding-system-for-read
 918                      (get-text-property start 'epa-coding-system-used)
 919                      'undecided)))
 920     (if (y-or-n-p "Replace the original text? ")
 921         (let ((inhibit-read-only t)
 922               buffer-read-only)
 923           (delete-region start end)
 924           (goto-char start)
 925           (insert plain))
 926       (with-output-to-temp-buffer "*Temp*"
 927         (set-buffer standard-output)
 928         (insert plain)
 929         (epa-info-mode)))
 930     (if (epg-context-result-for context 'verify)
 931         (epa-display-info (epg-verify-result-to-string
 932                            (epg-context-result-for context 'verify))))))
 933
 934 ;;;###autoload
 935 (defun epa-verify-cleartext-in-region (start end)
 936   "Verify OpenPGP cleartext signed messages in the current region
 937 between START and END.
 938
 939 Don't use this command in Lisp programs!
 940 See the reason described in the `epa-verify-region' documentation."
 941   (interactive "r")
 942   (save-excursion
 943     (save-restriction
 944       (narrow-to-region start end)
 945       (goto-char start)
 946       (let (cleartext-start cleartext-end)
 947         (while (re-search-forward "-----BEGIN PGP SIGNED MESSAGE-----$"
 948                                   nil t)
 949           (setq cleartext-start (match-beginning 0))
 950           (unless (re-search-forward "^-----BEGIN PGP SIGNATURE-----$"
 951                                            nil t)
 952             (error "Invalid cleartext signed message"))
 953           (setq cleartext-end (re-search-forward
 954                            "^-----END PGP SIGNATURE-----$"
 955                            nil t))
 956           (unless cleartext-end
 957             (error "No cleartext tail"))
 958           (epa-verify-region cleartext-start cleartext-end))))))
 959
 960 (eval-and-compile
 961   (if (fboundp 'select-safe-coding-system)
 962       (defalias 'epa--select-safe-coding-system 'select-safe-coding-system)
 963     (defun epa--select-safe-coding-system (from to)
 964       buffer-file-coding-system)))
 965
 966 ;;;###autoload
 967 (defun epa-sign-region (start end signers mode)
 968   "Sign the current region between START and END by SIGNERS keys selected.
 969
 970 Don't use this command in Lisp programs!
 971 Since this function operates on regions, it does some tricks such
 972 as coding-system detection and unibyte/multibyte conversion.  If
 973 you are sure how the data should be treated, you should consider
 974 using the string based counterpart `epg-sign-string', or the file
 975 based counterpart `epg-sign-file' instead.
 976
 977 For example:
 978
 979 \(let ((context (epg-make-context 'OpenPGP)))
 980   (epg-sign-string
 981     context
 982     (encode-coding-string (buffer-substring start end) 'utf-8)))"
 983   (interactive
 984    (let ((verbose current-prefix-arg))
 985      (setq epa-last-coding-system-specified
 986            (or coding-system-for-write
 987                (epa--select-safe-coding-system
 988                 (region-beginning) (region-end))))
 989      (list (region-beginning) (region-end)
 990            (if verbose
 991                (epa-select-keys (epg-make-context epa-protocol)
 992                                 "Select keys for signing.
 993 If no one is selected, default secret key is used.  "
 994                                 nil t))
 995            (if verbose
 996                (epa--read-signature-type)
 997              'clear))))
 998   (save-excursion
 999     (let ((context (epg-make-context epa-protocol))
1000           signature)
1001       ;;(epg-context-set-armor context epa-armor)
1002       (epg-context-set-armor context t)
1003       ;;(epg-context-set-textmode context epa-textmode)
1004       (epg-context-set-textmode context t)
1005       (epg-context-set-signers context signers)
1006       (epg-context-set-passphrase-callback context
1007                                            #'epa-passphrase-callback-function)
1008       (epg-context-set-progress-callback context
1009                                          (cons
1010                                           #'epa-progress-callback-function
1011                                           "Signing..."))
1012       (message "Signing...")
1013       (setq signature (epg-sign-string context
1014                                        (epa--encode-coding-string
1015                                         (buffer-substring start end)
1016                                         epa-last-coding-system-specified)
1017                                        mode))
1018       (message "Signing...done")
1019       (delete-region start end)
1020       (goto-char start)
1021       (add-text-properties (point)
1022                            (progn
1023                              (insert (epa--decode-coding-string
1024                                       signature
1025                                       (or coding-system-for-read
1026                                           epa-last-coding-system-specified)))
1027                              (point))
1028                            (list 'epa-coding-system-used
1029                                  epa-last-coding-system-specified
1030                                  'front-sticky nil
1031                                  'rear-nonsticky t
1032                                  'start-open t
1033                                  'end-open t)))))
1034
1035 (eval-and-compile
1036   (if (fboundp 'derived-mode-p)
1037       (defalias 'epa--derived-mode-p 'derived-mode-p)
1038     (defun epa--derived-mode-p (&rest modes)
1039       "Non-nil if the current major mode is derived from one of MODES.
1040 Uses the `derived-mode-parent' property of the symbol to trace backwards."
1041       (let ((parent major-mode))
1042         (while (and (not (memq parent modes))
1043                     (setq parent (get parent 'derived-mode-parent))))
1044         parent))))
1045
1046 ;;;###autoload
1047 (defun epa-encrypt-region (start end recipients sign signers)
1048   "Encrypt the current region between START and END for RECIPIENTS.
1049
1050 Don't use this command in Lisp programs!
1051 Since this function operates on regions, it does some tricks such
1052 as coding-system detection and unibyte/multibyte conversion.  If
1053 you are sure how the data should be treated, you should consider
1054 using the string based counterpart `epg-encrypt-string', or the
1055 file based counterpart `epg-encrypt-file' instead.
1056
1057 For example:
1058
1059 \(let ((context (epg-make-context 'OpenPGP)))
1060   (epg-encrypt-string
1061     context
1062     (encode-coding-string (buffer-substring start end) 'utf-8)
1063     nil))"
1064   (interactive
1065    (let ((verbose current-prefix-arg)
1066          (context (epg-make-context epa-protocol))
1067          sign)
1068      (setq epa-last-coding-system-specified
1069            (or coding-system-for-write
1070                (epa--select-safe-coding-system
1071                 (region-beginning) (region-end))))
1072      (list (region-beginning) (region-end)
1073            (epa-select-keys context
1074                             "Select recipients for encryption.
1075 If no one is selected, symmetric encryption will be performed.  ")
1076            (setq sign (if verbose (y-or-n-p "Sign? ")))
1077            (if sign
1078                (epa-select-keys context
1079                                 "Select keys for signing.  ")))))
1080   (save-excursion
1081     (let ((context (epg-make-context epa-protocol))
1082           cipher)
1083       ;;(epg-context-set-armor context epa-armor)
1084       (epg-context-set-armor context t)
1085       ;;(epg-context-set-textmode context epa-textmode)
1086       (epg-context-set-textmode context t)
1087       (if sign
1088           (epg-context-set-signers context signers))
1089       (epg-context-set-passphrase-callback context
1090                                            #'epa-passphrase-callback-function)
1091       (epg-context-set-progress-callback context
1092                                          (cons
1093                                           #'epa-progress-callback-function
1094                                           "Encrypting..."))
1095       (message "Encrypting...")
1096       (setq cipher (epg-encrypt-string context
1097                                        (epa--encode-coding-string
1098                                         (buffer-substring start end)
1099                                         epa-last-coding-system-specified)
1100                                        recipients
1101                                        sign))
1102       (message "Encrypting...done")
1103       (delete-region start end)
1104       (goto-char start)
1105       (add-text-properties (point)
1106                            (progn
1107                              (insert cipher)
1108                              (point))
1109                            (list 'epa-coding-system-used
1110                                  epa-last-coding-system-specified
1111                                  'front-sticky nil
1112                                  'rear-nonsticky t
1113                                  'start-open t
1114                                  'end-open t)))))
1115
1116 ;;;###autoload
1117 (defun epa-delete-keys (keys &optional allow-secret)
1118   "Delete selected KEYS."
1119   (interactive
1120    (let ((keys (epa--marked-keys)))
1121      (unless keys
1122        (error "No keys selected"))
1123      (list keys
1124            (eq (nth 1 epa-list-keys-arguments) t))))
1125   (let ((context (epg-make-context epa-protocol)))
1126     (message "Deleting...")
1127     (epg-delete-keys context keys allow-secret)
1128     (message "Deleting...done")
1129     (apply #'epa--list-keys epa-list-keys-arguments)))
1130
1131 ;;;###autoload
1132 (defun epa-import-keys (file)
1133   "Import keys from FILE."
1134   (interactive "fFile: ")
1135   (setq file (expand-file-name file))
1136   (let ((context (epg-make-context epa-protocol)))
1137     (message "Importing %s..." (file-name-nondirectory file))
1138     (condition-case nil
1139         (progn
1140           (epg-import-keys-from-file context file)
1141           (message "Importing %s...done" (file-name-nondirectory file)))
1142       (error
1143        (message "Importing %s...failed" (file-name-nondirectory file))))
1144     (if (epg-context-result-for context 'import)
1145         (epa-display-info (epg-import-result-to-string
1146                            (epg-context-result-for context 'import))))
1147     (if (eq major-mode 'epa-key-list-mode)
1148         (apply #'epa--list-keys epa-list-keys-arguments))))
1149
1150 ;;;###autoload
1151 (defun epa-import-keys-region (start end)
1152   "Import keys from the region."
1153   (interactive "r")
1154   (let ((context (epg-make-context epa-protocol)))
1155     (message "Importing...")
1156     (condition-case nil
1157         (progn
1158           (epg-import-keys-from-string context (buffer-substring start end))
1159           (message "Importing...done"))
1160       (error
1161        (message "Importing...failed")))
1162     (if (epg-context-result-for context 'import)
1163         (epa-display-info (epg-import-result-to-string
1164                            (epg-context-result-for context 'import))))))
1165
1166 ;;;###autoload
1167 (defun epa-import-armor-in-region (start end)
1168   "Import keys in the OpenPGP armor format in the current region
1169 between START and END."
1170   (interactive "r")
1171   (save-excursion
1172     (save-restriction
1173       (narrow-to-region start end)
1174       (goto-char start)
1175       (let (armor-start armor-end)
1176         (while (re-search-forward
1177                 "-----BEGIN \\(PGP \\(PUBLIC\\|PRIVATE\\) KEY BLOCK\\)-----$"
1178                 nil t)
1179           (setq armor-start (match-beginning 0)
1180                 armor-end (re-search-forward
1181                            (concat "^-----END " (match-string 1) "-----$")
1182                            nil t))
1183           (unless armor-end
1184             (error "No armor tail"))
1185           (epa-import-keys-region armor-start armor-end))))))
1186
1187 ;;;###autoload
1188 (defun epa-export-keys (keys file)
1189   "Export selected KEYS to FILE."
1190   (interactive
1191    (let ((keys (epa--marked-keys))
1192          default-name)
1193      (unless keys
1194        (error "No keys selected"))
1195      (setq default-name
1196            (expand-file-name
1197             (concat (epg-sub-key-id (car (epg-key-sub-key-list (car keys))))
1198                     (if epa-armor ".asc" ".gpg"))
1199             default-directory))
1200      (list keys
1201            (expand-file-name
1202             (read-file-name
1203              (concat "To file (default "
1204                      (file-name-nondirectory default-name)
1205                      ") ")
1206              (file-name-directory default-name)
1207              default-name)))))
1208   (let ((context (epg-make-context epa-protocol)))
1209     (epg-context-set-armor context epa-armor)
1210     (message "Exporting to %s..." (file-name-nondirectory file))
1211     (epg-export-keys-to-file context keys file)
1212     (message "Exporting to %s...done" (file-name-nondirectory file))))
1213
1214 ;;;###autoload
1215 (defun epa-insert-keys (keys)
1216   "Insert selected KEYS after the point."
1217   (interactive
1218    (list (epa-select-keys (epg-make-context epa-protocol)
1219                           "Select keys to export.  ")))
1220   (let ((context (epg-make-context epa-protocol)))
1221     ;;(epg-context-set-armor context epa-armor)
1222     (epg-context-set-armor context t)
1223     (insert (epg-export-keys-to-string context keys))))
1224
1225 ;; (defun epa-sign-keys (keys &optional local)
1226 ;;   "Sign selected KEYS.
1227 ;; If a prefix-arg is specified, the signature is marked as non exportable.
1228
1229 ;; Don't use this command in Lisp programs!"
1230 ;;   (interactive
1231 ;;    (let ((keys (epa--marked-keys)))
1232 ;;      (unless keys
1233 ;;        (error "No keys selected"))
1234 ;;      (list keys current-prefix-arg)))
1235 ;;   (let ((context (epg-make-context epa-protocol)))
1236 ;;     (epg-context-set-passphrase-callback context
1237 ;;                                       #'epa-passphrase-callback-function)
1238 ;;     (epg-context-set-progress-callback context
1239 ;;                                     (cons
1240 ;;                                      #'epa-progress-callback-function
1241 ;;                                      "Signing keys..."))
1242 ;;     (message "Signing keys...")
1243 ;;     (epg-sign-keys context keys local)
1244 ;;     (message "Signing keys...done")))
1245 ;; (make-obsolete 'epa-sign-keys "Do not use.")
1246
1247 (provide 'epa)
1248
1249 ;; arch-tag: 38d20ced-20d5-4137-b17a-f206335423d7
1250 ;;; epa.el ends here