/usr/share/doc/mailcrypt/HTML/mailcrypt_3.html is in mailcrypt 3.5.9-7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
<html>
<!-- Created on May 27, 2014 by texi2html 1.82
texi2html was written by:
Lionel Cons <Lionel.Cons@cern.ch> (original author)
Karl Berry <karl@freefriends.org>
Olaf Bachmann <obachman@mathematik.uni-kl.de>
and many others.
Maintained by: Many creative people.
Send bugs and suggestions to <texi2html-bug@nongnu.org>
-->
<head>
<title>No value for TITLE: 4. Passphrase Cache</title>
<meta name="description" content="No value for TITLE: 4. Passphrase Cache">
<meta name="keywords" content="No value for TITLE: 4. Passphrase Cache">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="texi2html 1.82">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type="text/css">
<!--
a.summary-letter {text-decoration: none}
blockquote.smallquotation {font-size: smaller}
pre.display {font-family: serif}
pre.format {font-family: serif}
pre.menu-comment {font-family: serif}
pre.menu-preformatted {font-family: serif}
pre.smalldisplay {font-family: serif; font-size: smaller}
pre.smallexample {font-size: smaller}
pre.smallformat {font-family: serif; font-size: smaller}
pre.smalllisp {font-size: smaller}
span.roman {font-family:serif; font-weight:normal;}
span.sansserif {font-family:sans-serif; font-weight:normal;}
ul.toc {list-style: none}
-->
</style>
</head>
<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
<a name="Passphrase-Cache"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="mailcrypt_2.html#Remailer-Tips" title="Previous section in reading order"> < </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_4.html#Key-Fetching" title="Next section in reading order"> > </a>]</td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left">[<a href="mailcrypt_2.html#Remailer-Support" title="Beginning of this chapter or previous chapter"> << </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_0.html#Introduction" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_4.html#Key-Fetching" title="Next chapter"> >> </a>]</td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left">[<a href="mailcrypt_0.html#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="Passphrase-Cache-1"></a>
<h1 class="chapter">4. Passphrase Cache</h1>
<a name="index-mc_002dpasswd_002dtimeout"></a>
<p>Mailcrypt can remember your passphrase so that you need not type it
repeatedly. It will also "forget" your passphrase if it has not been
used in a while, thus trading some security for some convenience. You
can tune this tradeoff with the variable <code>mc-passwd-timeout</code>, which
is a duration in seconds from the last time the passphrase was used
until Mailcrypt will forget it. The default value is 60 seconds.
</p>
<p>So, for example, to make Mailcrypt remember your passphrase for 10
minutes after each use, you would use the following line in your
‘<tt>.emacs</tt>’ file:
</p>
<table><tr><td> </td><td><pre class="lisp">(setq mc-passwd-timeout 600)
</pre></td></tr></table>
<p>A value of <code>nil</code> or 0 will disable passphrase caching completely.
This provides some increase in security, but be aware that you are
already playing a dangerous game by typing your passphrase at a Lisp
interpreter.
</p>
<p>Mailcrypt understands multiple secret keys with distinct passphrases.
</p>
<a name="index-mc_002ddeactivate_002dpasswd"></a>
<a name="index-C_002dc-_002f-f"></a>
<p>To manually force Mailcrypt to forget your passphrase(s), use the
function <code>mc-deactivate-passwd</code>. Both <code>mc-read-mode</code> and
<code>mc-write-mode</code> bind this function to <kbd>C-c / f</kbd> by default.
</p>
<blockquote><p><strong>Warning:</strong> Although Mailcrypt takes pains to overwrite your
passphrase when "forgetting", it cannot prevent the Emacs garbage
collector from possibly leaving copies elsewhere in memory. Also, your
last 100 keystrokes can always be viewed with the function
<code>view-lossage</code>, normally bound to <kbd>C-h l</kbd>. So be sure to type
at least 100 characters after typing your passphrase if you plan to
leave your terminal unattended.
</p></blockquote>
<hr size="6">
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="mailcrypt_2.html#Remailer-Support" title="Beginning of this chapter or previous chapter"> << </a>]</td>
<td valign="middle" align="left">[<a href="mailcrypt_4.html#Key-Fetching" title="Next chapter"> >> </a>]</td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left">[<a href="mailcrypt_0.html#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>
<p>
<font size="-1">
This document was generated by <em>Barak A. Pearlmutter</em> on <em>May 27, 2014</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.82</em></a>.
</font>
<br>
</p>
</body>
</html>
|