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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">

<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="#Introduction">1. Introduction</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                Read this first.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_1.html#General-Use">2. General Use</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                 Everyday cryptographic functions.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Remailer-Support">3. Remailer Support</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">            Interface to secure anonymous remailers.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_3.html#Passphrase-Cache">4. Passphrase Cache</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">            Letting Mailcrypt remember your passphrase
                                  for a while.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_4.html#Key-Fetching">5. Key Fetching</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                Automatically retrieving public keys
                                  via finger or HTTP.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_5.html#Miscellaneous-Configuration">6. Miscellaneous Configuration</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">  Random tweakables.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_6.html#Tips">7. Tips</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                        Hints and tricks.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_7.html#Limitations">8. Limitations</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                 Things Mailcrypt does not do.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_8.html#References">9. References</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                  Pointers to relevant information.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_9.html#Credits">10. Credits</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                     Whom to blame.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_10.html#Index">Index</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                       Keys, variables, and functions.
</td></tr>
<tr><th colspan="3" align="left" valign="top"><pre class="menu-comment">
 &mdash; The Detailed Node Listing &mdash;

Introduction

</pre></th></tr><tr><td align="left" valign="top"><a href="#Prerequisites">1.1 Prerequisites</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">               Complicated stuff you may have to do.
</td></tr>
<tr><td align="left" valign="top"><a href="#Installation">1.2 Installation</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                Simple stuff you probably have to do.
</td></tr>
<tr><td align="left" valign="top"><a href="#Command-Overview">1.3 Command Overview</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">            A brief summary of the most common
                                  commands.
</td></tr>
<tr><th colspan="3" align="left" valign="top"><pre class="menu-comment">
Installation

</pre></th></tr><tr><td align="left" valign="top"><a href="#Hooking-into-Rmail">1.2.1 Hooking into Rmail</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Hooking-into-VM">1.2.2 Hooking into VM</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Hooking-into-MH_002dE">1.2.3 Hooking into MH-E</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Hooking-into-Gnus">1.2.4 Hooking into Gnus</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Hooking-into-Mew">1.2.5 Hooking into Mew</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><th colspan="3" align="left" valign="top"><pre class="menu-comment">
General Use

</pre></th></tr><tr><td align="left" valign="top"><a href="mailcrypt_1.html#Encrypting">2.1 Encrypting a Message</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                  Encrypting a message to one or more
                                  recipients.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_1.html#Signing">2.2 Signing a Message</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                     Clearsigning a message.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_1.html#Inserting-Keys">2.3 Inserting a Public Key Block</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">              Extracting a key from your public key
                                  ring and inserting it.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_1.html#Decrypting">2.4 Decrypting a message</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                  Decrypting a message to you.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_1.html#Verifying">2.5 Verifying a Signature</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                   Verifying the signature on a clearsigned
                                  message.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_1.html#Snarfing-Keys">2.6 Snarfing a Key</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">               Finding a key in the current message and
                                 adding it to your keyring.
</td></tr>
<tr><th colspan="3" align="left" valign="top"><pre class="menu-comment">
Remailer Support

</pre></th></tr><tr><td align="left" valign="top"><a href="mailcrypt_2.html#Remailer-Introduction">3.1 Remailer Introduction</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">       A little about remailers in general.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Types-of-Remailers">3.2 Types of Remailers</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">          The different remailer networks
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Remailer-Quick-Start">3.3 Remailer Quick Start</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">        Getting started quickly.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Remailer-Chains">3.4 Remailer Chains</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">             Creating custom chains of your very own.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Response-Blocks">3.5 Response Blocks</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">             A way to let people reply to your
                                  anonymous messages.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Pseudonyms">3.6 Pseudonyms</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                  Who do you want to be today?
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Remailing-Posts">3.7 Remailing Posts</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">             Posting to USENET anonymously or
                                  pseduonymously.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Mixmaster-Support">3.8 Mixmaster Support</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">           Remailers for the truly paranoid.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Mixmaster-and-Mixminion">3.9 Mixmaster and Mixminion</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">     Support for external remailer clients.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Remailer-Security">3.10 Remailer Security</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">           Caveats.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Verifiable-Pseudonyms">3.11 Verifiable Pseudonyms</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">       Giving expression to the voices in your
                                  head.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_2.html#Remailer-Tips">3.12 Remailer Tips</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">               Free advice.
</td></tr>
<tr><th colspan="3" align="left" valign="top"><pre class="menu-comment">
Key Fetching

</pre></th></tr><tr><td align="left" valign="top"><a href="mailcrypt_4.html#Keyring-Fetch">5.1 Keyring Fetch</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">               Fetching from one or more other
                                  keyrings on the local system.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_4.html#Finger-Fetch">5.2 Finger Fetch</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                Fetching a key through finger.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_4.html#HTTP-Fetch">5.3 HTTP Fetch</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                  Fetching a key off of the Web.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_4.html#GnuPG-Fetch">5.4 GnuPG Fetch</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                 Using GnuPG&rsquo;s internal keyserver interface.
</td></tr>
<tr><th colspan="3" align="left" valign="top"><pre class="menu-comment">
Miscellaneous Configuration

</pre></th></tr><tr><td align="left" valign="top"><a href="mailcrypt_5.html#Alternate-Keyring">6.1 Alternate Keyring</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">           Specifying a different file to act
                                  like your public keyring.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_5.html#Comment-Field">6.2 Comment Field</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">               Burma
                                  Shave
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_5.html#Mode-Line">6.3 Mode Line</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                   Changing that &quot;MC-w&quot; and &quot;MC-r&quot; stuff
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_5.html#Key-Bindings">6.4 Key Bindings</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                Which keys cause which actions.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_5.html#Nonstandard-Paths">6.5 Nonstandard Paths</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">           Useful if your PGP installation is weird.
</td></tr>
<tr><th colspan="3" align="left" valign="top"><pre class="menu-comment">
References

</pre></th></tr><tr><td align="left" valign="top"><a href="mailcrypt_8.html#Online-Resources">9.1 Online Resources</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">            Recreational reading with a purpose.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_8.html#Key-Servers">9.2 Key Servers</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                 Keepers of the Global Keyring.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_8.html#Mailing-List">9.3 Mailing List</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                Staying informed while pumping the
                                  authors&rsquo; egos.
</td></tr>
<tr><td align="left" valign="top"><a href="mailcrypt_8.html#Politics">9.4 Politics</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                    Anarcho-foobarism.
</td></tr>
</table>

<a name="Introduction"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[ &lt; ]</td>
<td valign="middle" align="left">[<a href="#Prerequisites" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[ &lt;&lt; ]</td>
<td valign="middle" align="left">[ Up ]</td>
<td valign="middle" align="left">[<a href="mailcrypt_1.html#General-Use" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_10.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Introduction-1"></a>
<h1 class="chapter">1. Introduction</h1>

<p>Mailcrypt is an Emacs Lisp package which provides a simple but powerful
interface to cryptographic functions for mail and news.  With Mailcrypt,
encryption becomes a seamlessly integrated part of your mail and news
handling environment.
</p>
<p>This manual is long because it is complete.  All of the information you
need to get started is contained in this Introduction alone.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="#Prerequisites">1.1 Prerequisites</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">               Complicated stuff you may have to do.
</td></tr>
<tr><td align="left" valign="top"><a href="#Installation">1.2 Installation</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                Simple stuff you probably have to do.
</td></tr>
<tr><td align="left" valign="top"><a href="#Command-Overview">1.3 Command Overview</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">            A brief summary of the most common
                                  commands.
</td></tr>
</table>

<hr size="6">
<a name="Prerequisites"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="#Introduction" title="Previous section in reading order"> &lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Installation" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Introduction" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_1.html#General-Use" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_10.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Prerequisites-1"></a>
<h2 class="section">1.1 Prerequisites</h2>

<p>Mailcrypt requires version 19 or higher of GNU Emacs.  Mailcrypt has
been tested on a variety of systems under both FSF Emacs and XEmacs.
</p>
<p>Mailcrypt requires Pretty Good (tm) Privacy, usually known as PGP.  This
document assumes that you have already obtained and installed PGP and
that you are familiar with its basic functions.  The best way to become
familiar with these functions is to read the <cite>PGP User&rsquo;s Guide</cite>, at
least Volume I.
</p>
<p>For more information on obtaining and installing PGP, refer to the MIT
PGP home page at &lsquo;<tt>http://web.mit.edu/network/pgp.html</tt>&rsquo;.
</p>
<p>Although Mailcrypt may be used to process data in arbitrary Emacs
buffers, it is most useful in conjunction with other Emacs packages for
handling mail and news.  Mailcrypt has specialized support for Rmail
(see <a href="../emacs/Rmail.html#Rmail">Rmail: (emacs)Rmail</a> section &lsquo;Reading Mail with Rmail&rsquo; in <cite>The GNU Emacs Manual</cite>), VM (see <a href="../vm/index.html#Top">VM: (vm)Top</a> section &lsquo;Introduction&rsquo; in <cite>The VM User&rsquo;s Manual</cite>),
MH-E, and Gnus (see <a href="../gnus/index.html#Top">Gnus: (gnus)Top</a> section &lsquo;Overview&rsquo; in <cite>The Gnus Manual</cite>).
Information on the general use of these packages is beyond the scope of
this manual.
</p>
<hr size="6">
<a name="Installation"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="#Prerequisites" title="Previous section in reading order"> &lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Hooking-into-Rmail" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Introduction" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_1.html#General-Use" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
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<td valign="middle" align="left">[<a href="mailcrypt_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_10.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Installation-1"></a>
<h2 class="section">1.2 Installation</h2>

<p>If Mailcrypt is not installed on your system, obtain the latest version
from the Mailcrypt home page at &lsquo;<tt>http://mailcrypt.sourceforge.net</tt>&rsquo;
and follow the instructions in the file &lsquo;<tt>INSTALL</tt>&rsquo;.
</p>
<p>Next, decide what version of PGP you are using.  Versions 3.5 and higher
of Mailcrypt support multiple versions of PGP.  To choose a version,
add the following lines to your &lsquo;<tt>.emacs</tt>&rsquo; file:
</p>
<table><tr><td>&nbsp;</td><td><pre class="lisp">(load-library &quot;mailcrypt&quot;) ; provides &quot;mc-setversion&quot;
(mc-setversion &quot;2.6&quot;)    ; for PGP 2.6 (default); also &quot;5.0&quot; and &quot;gpg&quot;
</pre></td></tr></table>

<p>Next, teach your Emacs how and when to load the Mailcrypt functions and
install the Mailcrypt key bindings.  Almost all Emacs major modes
(including mail and news handling modes) have corresponding &quot;hook&quot;
variables which hold functions to be run when the mode is entered.  All
you have to do is add the Mailcrypt installer functions to the
appropriate hooks; then the installer functions will add the Mailcrypt
key bindings when the respective mode is entered.
</p>
<p>Specifically, begin by placing the following lines into your
&lsquo;<tt>.emacs</tt>&rsquo; file (or the system-wide &lsquo;<tt>default.el</tt>&rsquo; file):
</p>
<table><tr><td>&nbsp;</td><td><pre class="lisp">(autoload 'mc-install-write-mode &quot;mailcrypt&quot; nil t)
(autoload 'mc-install-read-mode &quot;mailcrypt&quot; nil t)
(add-hook 'mail-mode-hook 'mc-install-write-mode)
</pre></td></tr></table>

<p>Then add additional lines for your own mail and news packages as
described below.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top"><a href="#Hooking-into-Rmail">1.2.1 Hooking into Rmail</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Hooking-into-VM">1.2.2 Hooking into VM</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Hooking-into-MH_002dE">1.2.3 Hooking into MH-E</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Hooking-into-Gnus">1.2.4 Hooking into Gnus</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top"><a href="#Hooking-into-Mew">1.2.5 Hooking into Mew</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr size="6">
<a name="Hooking-into-Rmail"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="#Installation" title="Previous section in reading order"> &lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Hooking-into-VM" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Installation" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_1.html#General-Use" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_10.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Hooking-into-Rmail-1"></a>
<h3 class="subsection">1.2.1 Hooking into Rmail</h3>

<p>To hook Mailcrypt into Rmail, use the following lines:
</p>
<table><tr><td>&nbsp;</td><td><pre class="lisp">(add-hook 'rmail-mode-hook 'mc-install-read-mode)
(add-hook 'rmail-summary-mode-hook 'mc-install-read-mode)
</pre></td></tr></table>

<p>Using Emacs version 20.3 or higher, you should use the following
lines instead:
</p>
<table><tr><td>&nbsp;</td><td><pre class="lisp">(add-hook 'rmail-show-message-hook 'mc-install-read-mode)
(add-hook 'rmail-summary-mode-hook 'mc-install-read-mode)
</pre></td></tr></table>

<hr size="6">
<a name="Hooking-into-VM"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="#Hooking-into-Rmail" title="Previous section in reading order"> &lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Hooking-into-MH_002dE" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Installation" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_1.html#General-Use" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_10.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Hooking-into-VM-1"></a>
<h3 class="subsection">1.2.2 Hooking into VM</h3>

<p>To hook Mailcrypt into VM, use the following lines:
</p>
<table><tr><td>&nbsp;</td><td><pre class="lisp">(add-hook 'vm-mode-hook 'mc-install-read-mode)
(add-hook 'vm-summary-mode-hook 'mc-install-read-mode)
(add-hook 'vm-virtual-mode-hook 'mc-install-read-mode)
(add-hook 'vm-mail-mode-hook 'mc-install-write-mode)
</pre></td></tr></table>

<hr size="6">
<a name="Hooking-into-MH_002dE"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="#Hooking-into-VM" title="Previous section in reading order"> &lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Hooking-into-Gnus" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Installation" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_1.html#General-Use" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_10.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Hooking-into-MH_002dE-1"></a>
<h3 class="subsection">1.2.3 Hooking into MH-E</h3>

<p>To hook Mailcrypt into MH-E, use the following lines:
</p>
<table><tr><td>&nbsp;</td><td><pre class="lisp">(add-hook 'mh-folder-mode-hook 'mc-install-read-mode)
(add-hook 'mh-letter-mode-hook 'mc-install-write-mode)
</pre></td></tr></table>

<hr size="6">
<a name="Hooking-into-Gnus"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="#Hooking-into-MH_002dE" title="Previous section in reading order"> &lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Hooking-into-Mew" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Installation" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_1.html#General-Use" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_10.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Hooking-into-Gnus-1"></a>
<h3 class="subsection">1.2.4 Hooking into Gnus</h3>

<p>To hook Mailcrypt into Gnus, use the following lines:
</p>
<table><tr><td>&nbsp;</td><td><pre class="lisp">(add-hook 'gnus-summary-mode-hook 'mc-install-read-mode)
(add-hook 'message-mode-hook 'mc-install-write-mode)
(add-hook 'news-reply-mode-hook 'mc-install-write-mode)
</pre></td></tr></table>

<hr size="6">
<a name="Hooking-into-Mew"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="#Hooking-into-Gnus" title="Previous section in reading order"> &lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Command-Overview" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Installation" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_1.html#General-Use" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_10.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Hooking-into-Mew-1"></a>
<h3 class="subsection">1.2.5 Hooking into Mew</h3>

<p>To hook Mailcrypt into Mew, use the following lines:
</p>
<table><tr><td>&nbsp;</td><td><pre class="lisp">(add-hook 'mew-message-mode-hook 'mc-install-read-mode)
(add-hook 'mew-summary-mode-hook 'mc-install-read-mode)
(add-hook 'mew-draft-mode-hook 'mc-install-write-mode)
</pre></td></tr></table>

<p>Note that Mew already has extensive support for MIME-encoded encrypted
and/or signed messages (using the &ldquo;multipart/encrypted&rdquo; and
&ldquo;application/pgp-encrypted&rdquo; formats specified by RFC3156). Using
MailCrypt within Mew is most useful for traditional &ldquo;inline&rdquo; armored
encrypted/signed messages.
</p>
<hr size="6">
<a name="Command-Overview"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="#Hooking-into-Mew" title="Previous section in reading order"> &lt; </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_1.html#General-Use" title="Next section in reading order"> &gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
<td valign="middle" align="left">[<a href="#Introduction" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_1.html#General-Use" title="Next chapter"> &gt;&gt; </a>]</td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_10.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Command-Overview-1"></a>
<h2 class="section">1.3 Command Overview</h2>

<p>All Mailcrypt commands are (by default) activated by three-character key
sequences which begin with <kbd>C-c /</kbd>.  The most common operations are:
</p>
<dl compact="compact">
<dt> <em>Encrypting a Message</em></dt>
<dd><p><kbd>C-c / e</kbd> encrypts a message using the recipient&rsquo;s (or recipients&rsquo;)
public key(s).  See section <a href="mailcrypt_1.html#Encrypting">Encrypting a Message</a>.
</p>
</dd>
<dt> <em>Decrypting a Message</em></dt>
<dd><p><kbd>C-c / d</kbd> decrypts a message using your secret key.
See section <a href="mailcrypt_1.html#Decrypting">Decrypting a Message</a>.
</p>
</dd>
<dt> <em>Signing a Message</em></dt>
<dd><p><kbd>C-c / s</kbd> clearsigns a message using your secret key.
See section <a href="mailcrypt_1.html#Signing">Signing a Message</a>.
</p>
</dd>
<dt> <em>Verifying a Signature</em></dt>
<dd><p><kbd>C-c / v</kbd> verifies the signature on a clearsigned message using the
sender&rsquo;s public key.  See section <a href="mailcrypt_1.html#Verifying">Verifying a Signature</a>.
</p>
</dd>
</dl>

<p>These functions and others are documented in detail in the following
chapters.
</p>
<p>Any time you are composing or reading mail or news, you can get a
summary of the available commands by typing <kbd>C-h m</kbd>.  If you are
running Emacs under X, an even easier way to see the available commands
is to access the <code>Mailcrypt</code> pull-down menu.
</p>
<hr size="6">
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="#Introduction" title="Beginning of this chapter or previous chapter"> &lt;&lt; </a>]</td>
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<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left"> &nbsp; </td>
<td valign="middle" align="left">[<a href="#Introduction" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_10.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
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