/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk

« back to all changes in this revision

Viewing changes to plugins.d/plymouth.xml

  • Committer: Teddy Hogeborn
  • Date: 2015-03-10 18:03:38 UTC
  • Revision ID: teddy@recompile.se-20150310180338-pcxw6r2qmw9k6br9
Add ":!RSA" to GnuTLS priority string, to disallow non-DHE kx.

If Mandos was somehow made to use a non-ephemeral Diffie-Hellman key
exchange algorithm in the TLS handshake, any saved network traffic
could then be decrypted later if the Mandos client key was obtained.
By default, Mandos uses ephemeral DH key exchanges which does not have
this problem, but a non-ephemeral key exchange algorithm was still
enabled by default.  The simplest solution is to simply turn that off,
which ensures that Mandos will always use ephemeral DH key exchanges.

There is a "PFS" priority string specifier, but we can't use it because:

1. Security-wise, it is a mix between "NORMAL" and "SECURE128" - it
   enables a lot more algorithms than "SECURE256".

2. It is only available since GnuTLS 3.2.4.

Thanks to Andreas Fischer <af@bantuX.org> for reporting this issue.

Show diffs side-by-side

added added

removed removed

Lines of Context:
2
2
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3
3
        "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4
4
<!ENTITY COMMANDNAME "plymouth">
5
 
<!ENTITY TIMESTAMP "2011-02-27">
 
5
<!ENTITY TIMESTAMP "2012-01-01">
6
6
<!ENTITY % common SYSTEM "../common.ent">
7
7
%common;
8
8
]>
19
19
        <firstname>Björn</firstname>
20
20
        <surname>Påhlsson</surname>
21
21
        <address>
22
 
          <email>belorn@fukt.bsnet.se</email>
 
22
          <email>belorn@recompile.se</email>
23
23
        </address>
24
24
      </author>
25
25
      <author>
26
26
        <firstname>Teddy</firstname>
27
27
        <surname>Hogeborn</surname>
28
28
        <address>
29
 
          <email>teddy@fukt.bsnet.se</email>
 
29
          <email>teddy@recompile.se</email>
30
30
        </address>
31
31
      </author>
32
32
    </authorgroup>
33
33
    <copyright>
34
34
      <year>2010</year>
35
35
      <year>2011</year>
 
36
      <year>2012</year>
36
37
      <holder>Teddy Hogeborn</holder>
37
38
      <holder>Björn Påhlsson</holder>
38
39
    </copyright>
161
162
        </listitem>
162
163
      </varlistentry>
163
164
      <varlistentry>
164
 
        <term><filename>/proc</filename></term>
 
165
        <term><filename class="directory">/proc</filename></term>
165
166
        <listitem>
166
167
          <para>
167
168
            To find the running <citerefentry><refentrytitle
261
262
  <refsect1 id="see_also">
262
263
    <title>SEE ALSO</title>
263
264
    <para>
 
265
      <citerefentry><refentrytitle>intro</refentrytitle>
 
266
      <manvolnum>8mandos</manvolnum></citerefentry>,
264
267
      <citerefentry><refentrytitle>crypttab</refentrytitle>
265
268
      <manvolnum>5</manvolnum></citerefentry>,
266
269
      <citerefentry><refentrytitle>plugin-runner</refentrytitle>