mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-24 07:20:37 +00:00
62e034c228
* ada-mode.texi, auth.texi, autotype.texi, calc.texi, cc-mode.texi: * dired-x.texi, ebrowse.texi, ede.texi, edt.texi, eieio.texi: * emacs-mime.texi, epa.texi, erc.texi, eshell.texi, eudc.texi: * flymake.texi, gnus.texi, info.texi, mairix-el.texi, message.texi: * newsticker.texi, org.texi, pgg.texi, rcirc.texi, reftex.texi: * remember.texi, sasl.texi, semantic.texi, ses.texi, smtpmail.texi: * speedbar.texi, tramp.texi, url.texi, viper.texi, widget.texi: * woman.texi: Start direntry descriptions in column 32, per Texinfo convention. Make them end with a period.
408 lines
12 KiB
Plaintext
408 lines
12 KiB
Plaintext
\input texinfo @c -*- mode: texinfo -*-
|
|
@c %**start of header
|
|
@setfilename ../../info/epa
|
|
@settitle EasyPG Assistant User's Manual
|
|
@c %**end of header
|
|
|
|
@set VERSION 1.0.0
|
|
|
|
@copying
|
|
This file describes EasyPG Assistant @value{VERSION}.
|
|
|
|
Copyright @copyright{} 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
|
|
|
|
@quotation
|
|
Permission is granted to copy, distribute and/or modify this document
|
|
under the terms of the GNU Free Documentation License, Version 1.3 or
|
|
any later version published by the Free Software Foundation; with no
|
|
Invariant Sections, with the Front-Cover texts being ``A GNU Manual,''
|
|
and with the Back-Cover Texts as in (a) below. A copy of the license
|
|
is included in the section entitled ``GNU Free Documentation License''
|
|
in the Emacs manual.
|
|
|
|
(a) The FSF's Back-Cover Text is: ``You have the freedom to copy and
|
|
modify this GNU manual. Buying copies from the FSF supports it in
|
|
developing GNU and promoting software freedom.''
|
|
|
|
This document is part of a collection distributed under the GNU Free
|
|
Documentation License. If you want to distribute this document
|
|
separately from the collection, you can do so by adding a copy of the
|
|
license to the document, as described in section 6 of the license.
|
|
@end quotation
|
|
@end copying
|
|
|
|
@dircategory Emacs
|
|
@direntry
|
|
* EasyPG Assistant: (epa). An Emacs user interface to GNU Privacy Guard.
|
|
@end direntry
|
|
|
|
@titlepage
|
|
@title EasyPG Assistant
|
|
|
|
@author by Daiki Ueno
|
|
@page
|
|
|
|
@vskip 0pt plus 1filll
|
|
@insertcopying
|
|
@end titlepage
|
|
|
|
@contents
|
|
|
|
@node Top
|
|
@top EasyPG Assistant user's manual
|
|
|
|
EasyPG Assistant is an Emacs user interface to GNU Privacy Guard
|
|
(GnuPG, @pxref{Top, , Top, gnupg, Using the GNU Privacy Guard}).
|
|
|
|
EasyPG Assistant is a part of the package called EasyPG, an all-in-one
|
|
GnuPG interface for Emacs. EasyPG also contains the library interface
|
|
called EasyPG Library.
|
|
|
|
@ifnottex
|
|
@insertcopying
|
|
@end ifnottex
|
|
|
|
@menu
|
|
* Overview::
|
|
* Quick start::
|
|
* Commands::
|
|
@end menu
|
|
|
|
@node Overview
|
|
@chapter Overview
|
|
|
|
EasyPG Assistant provides the following features.
|
|
|
|
@itemize @bullet
|
|
@item Key management.
|
|
@item Cryptographic operations on regions.
|
|
@item Cryptographic operations on files.
|
|
@item Dired integration.
|
|
@item Mail-mode integration.
|
|
@item Automatic encryption/decryption of *.gpg files.
|
|
@end itemize
|
|
|
|
@node Quick start
|
|
@chapter Quick start
|
|
|
|
EasyPG Assistant commands are prefixed by @samp{epa-}. For example,
|
|
|
|
@itemize @bullet
|
|
@item To browse your keyring, type @kbd{M-x epa-list-keys}
|
|
|
|
@item To create a cleartext signature of the region, type @kbd{M-x epa-sign-region}
|
|
|
|
@item To encrypt a file, type @kbd{M-x epa-encrypt-file}
|
|
@end itemize
|
|
|
|
EasyPG Assistant provides several cryptographic features which can be
|
|
integrated into other Emacs functionalities. For example, automatic
|
|
encryption/decryption of @samp{*.gpg} files.
|
|
|
|
@node Commands
|
|
@chapter Commands
|
|
|
|
This chapter introduces various commands for typical use cases.
|
|
|
|
@menu
|
|
* Key management::
|
|
* Cryptographic operations on regions::
|
|
* Cryptographic operations on files::
|
|
* Dired integration::
|
|
* Mail-mode integration::
|
|
* Encrypting/decrypting *.gpg files::
|
|
@end menu
|
|
|
|
@node Key management
|
|
@section Key management
|
|
Probably the first step of using EasyPG Assistant is to browse your
|
|
keyring. @kbd{M-x epa-list-keys} is corresponding to @samp{gpg
|
|
--list-keys} from the command line.
|
|
|
|
@deffn Command epa-list-keys name mode
|
|
Show all keys matched with @var{name} from the public keyring.
|
|
@end deffn
|
|
|
|
@noindent
|
|
The output looks as follows.
|
|
|
|
@example
|
|
u A5B6B2D4B15813FE Daiki Ueno <ueno@@unixuser.org>
|
|
@end example
|
|
|
|
@noindent
|
|
A character on the leftmost column indicates the trust level of the
|
|
key. If it is @samp{u}, the key is marked as ultimately trusted. The
|
|
second column is the key ID, and the rest is the user ID.
|
|
|
|
You can move over entries by @key{TAB}. If you type @key{RET} or
|
|
click button1 on an entry, you will see more detailed information
|
|
about the key you selected.
|
|
|
|
@example
|
|
u Daiki Ueno <ueno@@unixuser.org>
|
|
u A5B6B2D4B15813FE 1024bits DSA
|
|
Created: 2001-10-09
|
|
Expires: 2007-09-04
|
|
Capabilities: sign certify
|
|
Fingerprint: 8003 7CD0 0F1A 9400 03CA 50AA A5B6 B2D4 B158 13FE
|
|
u 4447461B2A9BEA2D 2048bits ELGAMAL_E
|
|
Created: 2001-10-09
|
|
Expires: 2007-09-04
|
|
Capabilities: encrypt
|
|
Fingerprint: 9003 D76B 73B7 4A8A E588 10AF 4447 461B 2A9B EA2D
|
|
@end example
|
|
|
|
@noindent
|
|
To browse your private keyring, use @kbd{M-x epa-list-secret-keys}.
|
|
|
|
@deffn Command epa-list-secret-keys name
|
|
Show all keys matched with @var{name} from the private keyring.
|
|
@end deffn
|
|
|
|
@noindent
|
|
In @samp{*Keys*} buffer, several commands are available. The common
|
|
use case is to export some keys to a file. To do that, type @kbd{m}
|
|
to select keys, type @kbd{o}, and then supply the filename.
|
|
|
|
Below are other commands related to key management. Some of them take
|
|
a file as input/output, and others take the current region.
|
|
|
|
@deffn Command epa-insert-keys keys
|
|
Insert selected @var{keys} after the point. It will let you select
|
|
keys before insertion. By default, it will encode keys in the OpenPGP
|
|
armor format.
|
|
@end deffn
|
|
|
|
@deffn Command epa-import-keys file
|
|
Import keys from @var{file} to your keyring.
|
|
@end deffn
|
|
|
|
@deffn Command epa-import-keys-region start end
|
|
Import keys from the current region between @var{start} and @var{end}
|
|
to your keyring.
|
|
@end deffn
|
|
|
|
@deffn Command epa-import-armor-in-region start end
|
|
Import keys in the OpenPGP armor format in the current region between
|
|
@var{start} and @var{end}. The difference from
|
|
@code{epa-import-keys-region} is that
|
|
@code{epa-import-armor-in-region} searches armors in the region and
|
|
applies @code{epa-import-keys-region} to each of them.
|
|
@end deffn
|
|
|
|
@deffn Command epa-delete-keys allow-secret
|
|
Delete selected keys. If @var{allow-secret} is non-@code{nil}, it
|
|
also delete the secret keys.
|
|
@end deffn
|
|
|
|
@node Cryptographic operations on regions
|
|
@section Cryptographic operations on regions
|
|
|
|
@deffn Command epa-decrypt-region start end
|
|
Decrypt the current region between @var{start} and @var{end}. It
|
|
replaces the region with the decrypted text.
|
|
@end deffn
|
|
|
|
@deffn Command epa-decrypt-armor-in-region start end
|
|
Decrypt OpenPGP armors in the current region between @var{start} and
|
|
@var{end}. The difference from @code{epa-decrypt-region} is that
|
|
@code{epa-decrypt-armor-in-region} searches armors in the region
|
|
and applies @code{epa-decrypt-region} to each of them. That is, this
|
|
command does not alter the original text around armors.
|
|
@end deffn
|
|
|
|
@deffn Command epa-verify-region start end
|
|
Verify the current region between @var{start} and @var{end}. It sends
|
|
the verification result to the minibuffer or a popup window. It
|
|
replaces the region with the signed text.
|
|
@end deffn
|
|
|
|
@deffn Command epa-verify-cleartext-in-region
|
|
Verify OpenPGP cleartext blocks in the current region between
|
|
@var{start} and @var{end}. The difference from
|
|
@code{epa-verify-region} is that @code{epa-verify-cleartext-in-region}
|
|
searches OpenPGP cleartext blocks in the region and applies
|
|
@code{epa-verify-region} to each of them. That is, this command does
|
|
not alter the original text around OpenPGP cleartext blocks.
|
|
@end deffn
|
|
|
|
@deffn Command epa-sign-region start end signers type
|
|
Sign the current region between @var{start} and @var{end}. By
|
|
default, it creates a cleartext signature. If a prefix argument is
|
|
given, it will let you select signing keys, and then a signature
|
|
type.
|
|
@end deffn
|
|
|
|
@deffn Command epa-encrypt-region start end recipients sign signers
|
|
Encrypt the current region between @var{start} and @var{end}. It will
|
|
let you select recipients. If a prefix argument is given, it will
|
|
also ask you whether or not to sign the text before encryption and if
|
|
you answered yes, it will let you select the signing keys.
|
|
@end deffn
|
|
|
|
@node Cryptographic operations on files
|
|
@section Cryptographic operations on files
|
|
|
|
@deffn Command epa-decrypt-file file
|
|
Decrypt @var{file}.
|
|
@end deffn
|
|
|
|
@deffn Command epa-verify-file file
|
|
Verify @var{file}.
|
|
@end deffn
|
|
|
|
@deffn Command epa-sign-file file signers type
|
|
Sign @var{file}. If a prefix argument is given, it will let you
|
|
select signing keys, and then a signature type.
|
|
@end deffn
|
|
|
|
@deffn Command epa-encrypt-file file recipients
|
|
Encrypt @var{file}. It will let you select recipients.
|
|
@end deffn
|
|
|
|
@node Dired integration
|
|
@section Dired integration
|
|
|
|
EasyPG Assistant extends Dired Mode for GNU Emacs to allow users to
|
|
easily do cryptographic operations on files. For example,
|
|
|
|
@example
|
|
M-x dired
|
|
(mark some files)
|
|
: e (or M-x epa-dired-do-encrypt)
|
|
(select recipients by 'm' and click [OK])
|
|
@end example
|
|
|
|
@noindent
|
|
The following keys are assigned.
|
|
|
|
@table @kbd
|
|
@item : d
|
|
@kindex @kbd{: d}
|
|
@findex epa-dired-do-decrypt
|
|
Decrypt marked files.
|
|
|
|
@item : v
|
|
@kindex @kbd{: v}
|
|
@findex epa-dired-do-verify
|
|
Verify marked files.
|
|
|
|
@item : s
|
|
@kindex @kbd{: s}
|
|
@findex epa-dired-do-sign
|
|
Sign marked files.
|
|
|
|
@item : e
|
|
@kindex @kbd{: e}
|
|
@findex epa-dired-do-encrypt
|
|
Encrypt marked files.
|
|
|
|
@end table
|
|
|
|
@node Mail-mode integration
|
|
@section Mail-mode integration
|
|
|
|
EasyPG Assistant provides a minor mode @code{epa-mail-mode} to help
|
|
user compose inline PGP messages. Inline PGP is a traditional style
|
|
of sending signed/encrypted emails by embedding raw OpenPGP blobs
|
|
inside a message body, not using modern MIME format.
|
|
|
|
NOTE: Inline PGP is not recommended and you should consider to use
|
|
PGP/MIME. See
|
|
@uref{http://josefsson.org/inline-openpgp-considered-harmful.html,
|
|
Inline PGP in E-mail is bad, Mm'kay?}.
|
|
|
|
@noindent
|
|
Once @code{epa-mail-mode} is enabled, the following keys are assigned.
|
|
You can do it by @kbd{C-u 1 M-x epa-mail-mode} or through the Customize
|
|
interface. Try @kbd{M-x customize-variable epa-global-mail-mode}.
|
|
|
|
@table @kbd
|
|
@item C-c C-e d
|
|
@kindex @kbd{C-c C-e d}
|
|
@findex epa-mail-decrypt
|
|
Decrypt OpenPGP armors in the current buffer.
|
|
|
|
@item C-c C-e v
|
|
@kindex @kbd{C-c C-e v}
|
|
@findex epa-mail-verify
|
|
Verify OpenPGP cleartext signed messages in the current buffer.
|
|
|
|
@item C-c C-e s
|
|
@kindex @kbd{C-c C-e s}
|
|
@findex epa-mail-sign
|
|
Compose a signed message from the current buffer.
|
|
|
|
@item C-c C-e e
|
|
@kindex @kbd{C-c C-e e}
|
|
@findex epa-mail-encrypt
|
|
Compose an encrypted message from the current buffer.
|
|
By default it tries to build the recipient list from @samp{to},
|
|
@samp{cc}, and @samp{bcc} fields of the mail header. To include your
|
|
key in the recipient list, use @samp{encrypt-to} option in
|
|
@file{~/.gnupg/gpg.conf}.
|
|
|
|
@end table
|
|
|
|
@node Encrypting/decrypting *.gpg files
|
|
@section Encrypting/decrypting *.gpg files
|
|
By default, every file whose extension is @samp{.gpg} will be treated
|
|
as encrypted. That is, when you attempt to open such a file which
|
|
already exists, the decrypted text is inserted in the buffer rather
|
|
than encrypted one. On the other hand, when you attempt to save the
|
|
buffer to a file whose extension is @samp{.gpg}, encrypted data is
|
|
written.
|
|
|
|
If you want to temporarily disable this behavior, use @kbd{M-x
|
|
epa-file-disable}, and then to enable this behavior use @kbd{M-x
|
|
epa-file-enable}.
|
|
|
|
@deffn Command epa-file-disable
|
|
Disable automatic encryption/decryption of *.gpg files.
|
|
@end deffn
|
|
|
|
@deffn Command epa-file-enable
|
|
Enable automatic encryption/decryption of *.gpg files.
|
|
@end deffn
|
|
|
|
@noindent
|
|
@code{epa-file} will let you select recipients. If you want to
|
|
suppress this question, it might be a good idea to put the following
|
|
line on the first line of the text being encrypted.
|
|
@vindex epa-file-encrypt-to
|
|
|
|
@cartouche
|
|
@lisp
|
|
;; -*- epa-file-encrypt-to: ("ueno@@unixuser.org") -*-
|
|
@end lisp
|
|
@end cartouche
|
|
|
|
The file name extension of encrypted files can be controlled by
|
|
@var{epa-file-name-regexp}.
|
|
|
|
@defvar epa-file-name-regexp
|
|
Regexp which matches filenames treated as encrypted.
|
|
@end defvar
|
|
|
|
Other variables which control the automatic encryption/decryption
|
|
behavior are below.
|
|
|
|
@defvar epa-file-cache-passphrase-for-symmetric-encryption
|
|
If non-@code{nil}, cache passphrase for symmetric encryption. The
|
|
default value is @code{nil}.
|
|
@end defvar
|
|
|
|
@defvar epa-file-inhibit-auto-save
|
|
If non-@code{nil}, disable auto-saving when opening an encrypted file.
|
|
The default value is @code{t}.
|
|
@end defvar
|
|
|
|
@bye
|
|
|
|
@c End:
|
|
|
|
@ignore
|
|
arch-tag: 7404e246-7d4c-4db4-9332-c1293a455a4f
|
|
@end ignore
|