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- Committer: teddy at recompile
- Date: 2020-02-09 03:38:33 UTC
- Revision ID: teddy@recompile.se-20200209033833-2la1pujrnv2m0so4
Use reallocarray() if available, or check for overflow
* dracut-module/password-agent.c (add_to_queue): Check for overflow.
(test_add_to_queue_overflow): New test.
* plugin-runner.c (add_to_char_array, main): Use reallocarray().
* plugins.d/plymouth.c (exec_and_wait): - '' -
* dracut-module/password-agent.c (add_to_queue): Check for overflow.
(test_add_to_queue_overflow): New test.
* plugin-runner.c (add_to_char_array, main): Use reallocarray().
* plugins.d/plymouth.c (exec_and_wait): - '' -
- files added:
- DBUS-API
- debian/source
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- plugin-helpers
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
plugins.d/mandos-client.xml
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY COMMANDNAME "mandos-client">
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<!ENTITY TIMESTAMP "2009-02-09">
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<!ENTITY TIMESTAMP "2019-07-24">
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<!ENTITY % common SYSTEM "../common.ent">
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%common;
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]>
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<firstname>Björn</firstname>
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<surname>Påhlsson</surname>
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<address>
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<email>belorn@fukt.bsnet.se</email>
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<email>belorn@recompile.se</email>
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</address>
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</author>
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<author>
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<firstname>Teddy</firstname>
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<surname>Hogeborn</surname>
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<address>
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<email>teddy@fukt.bsnet.se</email>
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<email>teddy@recompile.se</email>
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</address>
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</author>
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</authorgroup>
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<copyright>
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<year>2008</year>
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<year>2009</year>
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<year>2010</year>
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<year>2011</year>
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<year>2012</year>
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<year>2013</year>
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<year>2014</year>
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<year>2015</year>
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<year>2016</year>
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<year>2017</year>
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<year>2018</year>
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<year>2019</year>
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<holder>Teddy Hogeborn</holder>
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<holder>Björn Påhlsson</holder>
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</copyright>
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><replaceable>PORT</replaceable></option></arg>
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</group>
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<sbr/>
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<group>
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<group rep='repeat'>
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<arg choice="plain"><option>--interface
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<replaceable>NAME</replaceable></option></arg>
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<arg choice="plain"><option>-i
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<replaceable>NAME</replaceable></option></arg>
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<replaceable>NAME</replaceable><arg rep='repeat'
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>,<replaceable>NAME</replaceable></arg></option></arg>
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<arg choice="plain"><option>-i <replaceable>NAME</replaceable
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><arg rep='repeat'>,<replaceable>NAME</replaceable></arg
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></option></arg>
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</group>
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<sbr/>
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<group>
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<replaceable>FILE</replaceable></option></arg>
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</group>
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<sbr/>
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<group>
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<arg choice="plain"><option>--tls-privkey
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<replaceable>FILE</replaceable></option></arg>
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<arg choice="plain"><option>-t
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<replaceable>FILE</replaceable></option></arg>
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</group>
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<sbr/>
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<group>
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<arg choice="plain"><option>--tls-pubkey
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<replaceable>FILE</replaceable></option></arg>
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<arg choice="plain"><option>-T
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<replaceable>FILE</replaceable></option></arg>
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</group>
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<sbr/>
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<arg>
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<option>--priority <replaceable>STRING</replaceable></option>
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</arg>
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</arg>
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<sbr/>
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<arg>
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<option>--dh-params <replaceable>FILE</replaceable></option>
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</arg>
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<sbr/>
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<arg>
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<option>--delay <replaceable>SECONDS</replaceable></option>
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</arg>
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<sbr/>
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<arg>
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<option>--retry <replaceable>SECONDS</replaceable></option>
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</arg>
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<sbr/>
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<arg>
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<option>--network-hook-dir
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<replaceable>DIR</replaceable></option>
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</arg>
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<sbr/>
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<arg>
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<option>--debug</option>
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</arg>
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</cmdsynopsis>
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communicates with <citerefentry><refentrytitle
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>mandos</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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to get a password. In slightly more detail, this client program
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brings up a network interface, uses the interface’s IPv6
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link-local address to get network connectivity, uses Zeroconf to
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find servers on the local network, and communicates with servers
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using TLS with an OpenPGP key to ensure authenticity and
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confidentiality. This client program keeps running, trying all
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servers on the network, until it receives a satisfactory reply
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or a TERM signal is received. If no servers are found, or after
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all servers have been tried, it waits indefinitely for new
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servers to appear.
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brings up network interfaces, uses the interfaces’ IPv6
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link-local addresses to get network connectivity, uses Zeroconf
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to find servers on the local network, and communicates with
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servers using TLS with a raw public key to ensure authenticity
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and confidentiality. This client program keeps running, trying
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all servers on the network, until it receives a satisfactory
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reply or a TERM signal. After all servers have been tried, all
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servers are periodically retried. If no servers are found it
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will wait indefinitely for new servers to appear.
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</para>
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<para>
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The network interfaces are selected like this: If any interfaces
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are specified using the <option>--interface</option> option,
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those interface are used. Otherwise,
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<command>&COMMANDNAME;</command> will use all interfaces that
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are not loopback interfaces, are not point-to-point interfaces,
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are capable of broadcasting and do not have the NOARP flag (see
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<citerefentry><refentrytitle>netdevice</refentrytitle>
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<manvolnum>7</manvolnum></citerefentry>). (If the
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<option>--connect</option> option is used, point-to-point
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interfaces and non-broadcast interfaces are accepted.) If any
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used interfaces are not up and running, they are first taken up
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(and later taken down again on program exit).
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</para>
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<para>
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Before network interfaces are selected, all <quote>network
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hooks</quote> are run; see <xref linkend="network-hooks"/>.
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</para>
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<para>
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This program is not meant to be run directly; it is really meant
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assumed to separate the address from the port number.
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</para>
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<para>
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This option is normally only useful for testing and
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debugging.
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Normally, Zeroconf would be used to locate Mandos servers,
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in which case this option would only be used when testing
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and debugging.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--interface=<replaceable
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>NAME</replaceable></option></term>
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>NAME</replaceable><arg rep='repeat'>,<replaceable
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>NAME</replaceable></arg></option></term>
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<term><option>-i
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<replaceable>NAME</replaceable></option></term>
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<replaceable>NAME</replaceable><arg rep='repeat'>,<replaceable
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>NAME</replaceable></arg></option></term>
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<listitem>
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<para>
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Network interface that will be brought up and scanned for
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Mandos servers to connect to. The default is
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<quote><literal>eth0</literal></quote>.
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Comma separated list of network interfaces that will be
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brought up and scanned for Mandos servers to connect to.
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The default is the empty string, which will automatically
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use all appropriate interfaces.
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</para>
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<para>
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If the <option>--connect</option> option is used, this
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specifies the interface to use to connect to the address
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given.
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If the <option>--connect</option> option is used, and
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exactly one interface name is specified (except
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<quote><literal>none</literal></quote>), this specifies
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the interface to use to connect to the address given.
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</para>
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<para>
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Note that since this program will normally run in the
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initial RAM disk environment, the interface must be an
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interface which exists at that stage. Thus, the interface
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can not be a pseudo-interface such as <quote>br0</quote>
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or <quote>tun0</quote>; such interfaces will not exist
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until much later in the boot process, and can not be used
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by this program.
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can normally not be a pseudo-interface such as
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<quote>br0</quote> or <quote>tun0</quote>; such interfaces
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will not exist until much later in the boot process, and
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can not be used by this program, unless created by a
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<quote>network hook</quote> — see <xref
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linkend="network-hooks"/>.
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</para>
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<para>
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<replaceable>NAME</replaceable> can be the empty string;
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this will not use any specific interface, and will not
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bring up an interface on startup. This is not
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recommended, and only meant for advanced users.
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<replaceable>NAME</replaceable> can be the string
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<quote><literal>none</literal></quote>; this will make
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<command>&COMMANDNAME;</command> only bring up interfaces
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specified <emphasis>before</emphasis> this string. This
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is not recommended, and only meant for advanced users.
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</para>
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</listitem>
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</varlistentry>
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</varlistentry>
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<varlistentry>
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<term><option>--tls-pubkey=<replaceable
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>FILE</replaceable></option></term>
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<term><option>-T
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<replaceable>FILE</replaceable></option></term>
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<listitem>
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<para>
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TLS raw public key file name. The default name is
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<quote><filename>/conf/conf.d/mandos/tls-pubkey.pem</filename
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></quote>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--tls-privkey=<replaceable
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>FILE</replaceable></option></term>
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<term><option>-t
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<replaceable>FILE</replaceable></option></term>
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<listitem>
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<para>
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TLS secret key file name. The default name is
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<quote><filename>/conf/conf.d/mandos/tls-privkey.pem</filename
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></quote>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--priority=<replaceable
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>STRING</replaceable></option></term>
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<listitem>
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<listitem>
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<para>
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Sets the number of bits to use for the prime number in the
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TLS Diffie-Hellman key exchange. Default is 1024.
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TLS Diffie-Hellman key exchange. The default value is
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selected automatically based on the GnuTLS security
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profile set in its priority string. Note that if the
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<option>--dh-params</option> option is used, the values
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from that file will be used instead.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--dh-params=<replaceable
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>FILE</replaceable></option></term>
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<listitem>
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<para>
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Specifies a PEM-encoded PKCS#3 file to read the parameters
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needed by the TLS Diffie-Hellman key exchange from. If
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this option is not given, or if the file for some reason
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could not be used, the parameters will be generated on
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startup, which will take some time and processing power.
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Those using servers running under time, power or processor
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constraints may want to generate such a file in advance
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and use this option.
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</para>
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</listitem>
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</varlistentry>
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>SECONDS</replaceable></option></term>
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<listitem>
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<para>
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After bringing the network interface up, the program waits
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After bringing a network interface up, the program waits
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for the interface to arrive in a <quote>running</quote>
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state before proceeding. During this time, the kernel log
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level will be lowered to reduce clutter on the system
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--retry=<replaceable
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>SECONDS</replaceable></option></term>
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<listitem>
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<para>
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All Mandos servers are tried repeatedly until a password
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is received. This value specifies, in seconds, how long
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between each successive try <emphasis>for the same
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server</emphasis>. The default is 10 seconds.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--network-hook-dir=<replaceable
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>DIR</replaceable></option></term>
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<listitem>
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<para>
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Network hook directory. The default directory is
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<quote><filename class="directory"
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>/lib/mandos/network-hooks.d</filename></quote>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--debug</option></term>
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<refentrytitle>plugin-runner</refentrytitle>
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<manvolnum>8mandos</manvolnum></citerefentry>) is used to run
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both this program and others in in parallel,
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<emphasis>one</emphasis> of which will prompt for passwords on
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the system console.
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<emphasis>one</emphasis> of which (<citerefentry>
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<refentrytitle>password-prompt</refentrytitle>
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<manvolnum>8mandos</manvolnum></citerefentry>) will prompt for
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passwords on the system console.
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</para>
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</refsect1>
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server could be found and the password received from it could be
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successfully decrypted and output on standard output. The
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program will exit with a non-zero exit status only if a critical
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error occurs. Otherwise, it will forever connect to new
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<application>Mandos</application> servers as they appear, trying
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to get a decryptable password and print it.
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error occurs. Otherwise, it will forever connect to any
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discovered <application>Mandos</application> servers, trying to
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get a decryptable password and print it.
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</para>
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</refsect1>
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<refsect1 id="environment">
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<title>ENVIRONMENT</title>
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<variablelist>
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<varlistentry>
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<term><envar>MANDOSPLUGINHELPERDIR</envar></term>
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<listitem>
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<para>
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This environment variable will be assumed to contain the
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directory containing any helper executables. The use and
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nature of these helper executables, if any, is purposely
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not documented.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>
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This program does not use any environment variables, not even
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the ones provided by <citerefentry><refentrytitle
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This program does not use any other environment variables, not
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even the ones provided by <citerefentry><refentrytitle
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>cryptsetup</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>.
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</para>
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</refsect1>
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<refsect1 id="network-hooks">
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<title>NETWORK HOOKS</title>
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<para>
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If a network interface like a bridge or tunnel is required to
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find a Mandos server, this requires the interface to be up and
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running before <command>&COMMANDNAME;</command> starts looking
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for Mandos servers. This can be accomplished by creating a
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<quote>network hook</quote> program, and placing it in a special
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directory.
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</para>
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<para>
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Before the network is used (and again before program exit), any
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runnable programs found in the network hook directory are run
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with the argument <quote><literal>start</literal></quote> or
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<quote><literal>stop</literal></quote>. This should bring up or
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down, respectively, any network interface which
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<command>&COMMANDNAME;</command> should use.
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</para>
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<refsect2 id="hook-requirements">
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<title>REQUIREMENTS</title>
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<para>
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A network hook must be an executable file, and its name must
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consist entirely of upper and lower case letters, digits,
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underscores, periods, and hyphens.
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</para>
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<para>
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A network hook will receive one argument, which can be one of
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the following:
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</para>
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<variablelist>
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<varlistentry>
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<term><literal>start</literal></term>
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<listitem>
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<para>
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This should make the network hook create (if necessary)
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and bring up a network interface.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>stop</literal></term>
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<listitem>
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<para>
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This should make the network hook take down a network
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interface, and delete it if it did not exist previously.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>files</literal></term>
592
<listitem>
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<para>
594
This should make the network hook print, <emphasis>one
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file per line</emphasis>, all the files needed for it to
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run. (These files will be copied into the initial RAM
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filesystem.) Typical use is for a network hook which is
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a shell script to print its needed binaries.
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</para>
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<para>
601
It is not necessary to print any non-executable files
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already in the network hook directory, these will be
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copied implicitly if they otherwise satisfy the name
604
requirements.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>modules</literal></term>
610
<listitem>
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<para>
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This should make the network hook print, <emphasis>on
613
separate lines</emphasis>, all the kernel modules needed
614
for it to run. (These modules will be copied into the
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initial RAM filesystem.) For instance, a tunnel
616
interface needs the
617
<quote><literal>tun</literal></quote> module.
618
</para>
619
</listitem>
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</varlistentry>
621
</variablelist>
622
<para>
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The network hook will be provided with a number of environment
624
variables:
625
</para>
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<variablelist>
627
<varlistentry>
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<term><envar>MANDOSNETHOOKDIR</envar></term>
629
<listitem>
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<para>
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The network hook directory, specified to
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<command>&COMMANDNAME;</command> by the
633
<option>--network-hook-dir</option> option. Note: this
634
should <emphasis>always</emphasis> be used by the
635
network hook to refer to itself or any files in the hook
636
directory it may require.
637
</para>
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</listitem>
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</varlistentry>
640
<varlistentry>
641
<term><envar>DEVICE</envar></term>
642
<listitem>
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<para>
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The network interfaces, as specified to
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<command>&COMMANDNAME;</command> by the
646
<option>--interface</option> option, combined to one
647
string and separated by commas. If this is set, and
648
does not contain the interface a hook will bring up,
649
there is no reason for a hook to continue.
650
</para>
651
</listitem>
652
</varlistentry>
653
<varlistentry>
654
<term><envar>MODE</envar></term>
655
<listitem>
656
<para>
657
This will be the same as the first argument;
658
i.e. <quote><literal>start</literal></quote>,
659
<quote><literal>stop</literal></quote>,
660
<quote><literal>files</literal></quote>, or
661
<quote><literal>modules</literal></quote>.
662
</para>
663
</listitem>
664
</varlistentry>
665
<varlistentry>
666
<term><envar>VERBOSITY</envar></term>
667
<listitem>
668
<para>
669
This will be the <quote><literal>1</literal></quote> if
670
the <option>--debug</option> option is passed to
671
<command>&COMMANDNAME;</command>, otherwise
672
<quote><literal>0</literal></quote>.
673
</para>
674
</listitem>
675
</varlistentry>
676
<varlistentry>
677
<term><envar>DELAY</envar></term>
678
<listitem>
679
<para>
680
This will be the same as the <option>--delay</option>
681
option passed to <command>&COMMANDNAME;</command>. Is
682
only set if <envar>MODE</envar> is
683
<quote><literal>start</literal></quote> or
684
<quote><literal>stop</literal></quote>.
685
</para>
686
</listitem>
687
</varlistentry>
688
<varlistentry>
689
<term><envar>CONNECT</envar></term>
690
<listitem>
691
<para>
692
This will be the same as the <option>--connect</option>
693
option passed to <command>&COMMANDNAME;</command>. Is
694
only set if <option>--connect</option> is passed and
695
<envar>MODE</envar> is
696
<quote><literal>start</literal></quote> or
697
<quote><literal>stop</literal></quote>.
698
</para>
699
</listitem>
700
</varlistentry>
701
</variablelist>
702
<para>
703
A hook may not read from standard input, and should be
704
restrictive in printing to standard output or standard error
705
unless <varname>VERBOSITY</varname> is
706
<quote><literal>1</literal></quote>.
707
</para>
708
</refsect2>
709
</refsect1>
710
388
711
<refsect1 id="files">
389
712
<title>FILES</title>
390
713
<variablelist>
402
725
</para>
403
726
</listitem>
404
727
</varlistentry>
728
<varlistentry>
729
<term><filename>/conf/conf.d/mandos/tls-pubkey.pem</filename
730
></term>
731
<term><filename>/conf/conf.d/mandos/tls-privkey.pem</filename
732
></term>
733
<listitem>
734
<para>
735
Public and private raw key files, in <quote>PEM</quote>
736
format. These are the default file names, they can be
737
changed with the <option>--tls-pubkey</option> and
738
<option>--tls-privkey</option> options.
739
</para>
740
</listitem>
741
</varlistentry>
742
<varlistentry>
743
<term><filename
744
class="directory">/lib/mandos/network-hooks.d</filename></term>
745
<listitem>
746
<para>
747
Directory where network hooks are located. Change this
748
with the <option>--network-hook-dir</option> option. See
749
<xref linkend="network-hooks"/>.
750
</para>
751
</listitem>
752
</varlistentry>
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</variablelist>
406
754
</refsect1>
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408
<!-- <refsect1 id="bugs"> -->
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<!-- <title>BUGS</title> -->
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<!-- <para> -->
411
<!-- </para> -->
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<!-- </refsect1> -->
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<refsect1 id="bugs">
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<title>BUGS</title>
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<xi:include href="../bugs.xml"/>
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</refsect1>
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<refsect1 id="example">
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762
<title>EXAMPLE</title>
421
768
</para>
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769
<informalexample>
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770
<para>
424
Normal invocation needs no options, if the network interface
425
is <quote>eth0</quote>:
771
Normal invocation needs no options, if the network interfaces
772
can be automatically determined:
426
773
</para>
427
774
<para>
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775
<userinput>&COMMANDNAME;</userinput>
430
777
</informalexample>
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<informalexample>
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779
<para>
433
Search for Mandos servers (and connect to them) using another
434
interface:
780
Search for Mandos servers (and connect to them) using one
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specific interface:
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782
</para>
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<para>
437
784
<!-- do not wrap this line -->
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787
</informalexample>
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788
<informalexample>
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789
<para>
443
Run in debug mode, and use a custom key:
790
Run in debug mode, and use custom keys:
444
791
</para>
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<para>
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793
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<!-- do not wrap this line -->
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<userinput>&COMMANDNAME; --debug --pubkey keydir/pubkey.txt --seckey keydir/seckey.txt</userinput>
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<userinput>&COMMANDNAME; --debug --pubkey keydir/pubkey.txt --seckey keydir/seckey.txt --tls-pubkey keydir/tls-pubkey.pem --tls-privkey keydir/tls-privkey.pem</userinput>
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796
450
797
</para>
451
798
</informalexample>
452
799
<informalexample>
453
800
<para>
454
Run in debug mode, with a custom key, and do not use Zeroconf
801
Run in debug mode, with custom keys, and do not use Zeroconf
455
802
to locate a server; connect directly to the IPv6 link-local
456
803
address <quote><systemitem class="ipaddress"
457
804
>fe80::aede:48ff:fe71:f6f2</systemitem></quote>, port 4711,
460
807
<para>
461
808
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809
<!-- do not wrap this line -->
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<userinput>&COMMANDNAME; --debug --pubkey keydir/pubkey.txt --seckey keydir/seckey.txt --connect fe80::aede:48ff:fe71:f6f2:4711 --interface eth2</userinput>
810
<userinput>&COMMANDNAME; --debug --pubkey keydir/pubkey.txt --seckey keydir/seckey.txt --tls-pubkey keydir/tls-pubkey.pem --tls-privkey keydir/tls-privkey.pem --connect fe80::aede:48ff:fe71:f6f2:4711 --interface eth2</userinput>
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811
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812
</para>
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813
</informalexample>
469
816
<refsect1 id="security">
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<title>SECURITY</title>
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818
<para>
472
This program is set-uid to root, but will switch back to the
473
original (and presumably non-privileged) user and group after
474
bringing up the network interface.
819
This program assumes that it is set-uid to root, and will switch
820
back to the original (and presumably non-privileged) user and
821
group after bringing up the network interface.
475
822
</para>
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823
<para>
477
824
To use this program for its intended purpose (see <xref
490
837
<para>
491
838
The only remaining weak point is that someone with physical
492
839
access to the client hard drive might turn off the client
493
computer, read the OpenPGP keys directly from the hard drive,
494
and communicate with the server. To safeguard against this, the
495
server is supposed to notice the client disappearing and stop
496
giving out the encrypted data. Therefore, it is important to
497
set the timeout and checker interval values tightly on the
498
server. See <citerefentry><refentrytitle
840
computer, read the OpenPGP and TLS keys directly from the hard
841
drive, and communicate with the server. To safeguard against
842
this, the server is supposed to notice the client disappearing
843
and stop giving out the encrypted data. Therefore, it is
844
important to set the timeout and checker interval values tightly
845
on the server. See <citerefentry><refentrytitle
499
846
>mandos</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
500
847
</para>
501
848
<para>
502
849
It will also help if the checker program on the server is
503
850
configured to request something from the client which can not be
504
spoofed by someone else on the network, unlike unencrypted
505
<acronym>ICMP</acronym> echo (<quote>ping</quote>) replies.
851
spoofed by someone else on the network, like SSH server key
852
fingerprints, and unlike unencrypted <acronym>ICMP</acronym>
853
echo (<quote>ping</quote>) replies.
506
854
</para>
507
855
<para>
508
856
<emphasis>Note</emphasis>: This makes it completely insecure to
516
864
<refsect1 id="see_also">
517
865
<title>SEE ALSO</title>
518
866
<para>
867
<citerefentry><refentrytitle>intro</refentrytitle>
868
<manvolnum>8mandos</manvolnum></citerefentry>,
519
869
<citerefentry><refentrytitle>cryptsetup</refentrytitle>
520
870
<manvolnum>8</manvolnum></citerefentry>,
521
871
<citerefentry><refentrytitle>crypttab</refentrytitle>
541
891
</varlistentry>
542
892
<varlistentry>
543
893
<term>
544
<ulink url="http://www.avahi.org/">Avahi</ulink>
894
<ulink url="https://www.avahi.org/">Avahi</ulink>
545
895
</term>
546
896
<listitem>
547
897
<para>
552
902
</varlistentry>
553
903
<varlistentry>
554
904
<term>
555
<ulink url="http://www.gnu.org/software/gnutls/"
556
>GnuTLS</ulink>
905
<ulink url="https://www.gnutls.org/">GnuTLS</ulink>
557
906
</term>
558
907
<listitem>
559
908
<para>
560
909
GnuTLS is the library this client uses to implement TLS for
561
910
communicating securely with the server, and at the same time
562
send the public OpenPGP key to the server.
911
send the public key to the server.
563
912
</para>
564
913
</listitem>
565
914
</varlistentry>
566
915
<varlistentry>
567
916
<term>
568
<ulink url="http://www.gnupg.org/related_software/gpgme/"
917
<ulink url="https://www.gnupg.org/related_software/gpgme/"
569
918
>GPGME</ulink>
570
919
</term>
571
920
<listitem>
599
948
<para>
600
949
This client uses IPv6 link-local addresses, which are
601
950
immediately usable since a link-local addresses is
602
automatically assigned to a network interfaces when it
951
automatically assigned to a network interface when it
603
952
is brought up.
604
953
</para>
605
954
</listitem>
609
958
</varlistentry>
610
959
<varlistentry>
611
960
<term>
612
RFC 4346: <citetitle>The Transport Layer Security (TLS)
613
Protocol Version 1.1</citetitle>
961
RFC 5246: <citetitle>The Transport Layer Security (TLS)
962
Protocol Version 1.2</citetitle>
614
963
</term>
615
964
<listitem>
616
965
<para>
617
TLS 1.1 is the protocol implemented by GnuTLS.
966
TLS 1.2 is the protocol implemented by GnuTLS.
618
967
</para>
619
968
</listitem>
620
969
</varlistentry>
631
980
</varlistentry>
632
981
<varlistentry>
633
982
<term>
634
RFC 5081: <citetitle>Using OpenPGP Keys for Transport Layer
983
RFC 7250: <citetitle>Using Raw Public Keys in Transport
984
Layer Security (TLS) and Datagram Transport Layer Security
985
(DTLS)</citetitle>
986
</term>
987
<listitem>
988
<para>
989
This is implemented by GnuTLS in version 3.6.6 and is, if
990
present, used by this program so that raw public keys can be
991
used.
992
</para>
993
</listitem>
994
</varlistentry>
995
<varlistentry>
996
<term>
997
RFC 6091: <citetitle>Using OpenPGP Keys for Transport Layer
635
998
Security</citetitle>
636
999
</term>
637
1000
<listitem>
638
1001
<para>
639
This is implemented by GnuTLS and used by this program so
640
that OpenPGP keys can be used.
1002
This is implemented by GnuTLS before version 3.6.0 and is,
1003
if present, used by this program so that OpenPGP keys can be
1004
used.
641
1005
</para>
642
1006
</listitem>
643
1007
</varlistentry>
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0