[52d29f7] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 |
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| 8 | <!ENTITY openssl-download-http "http://www.openssl.org/source/openssl-&openssl-version;.tar.gz">
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| 9 | <!ENTITY openssl-download-ftp "ftp://ftp.openssl.org/source/openssl-&openssl-version;.tar.gz">
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| 10 | <!ENTITY openssl-size "2.7 MB">
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| 11 | <!ENTITY openssl-buildsize "25 MB">
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| 12 | <!ENTITY openssl-time "1.16 SBU">
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| 13 |
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| 14 | ]>
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| 15 |
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| 16 |
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[984a23f] | 17 | <sect1 id="openssl" xreflabel="OpenSSL-&openssl-version;">
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[7f72cbf] | 18 | <?dbhtml filename="openssl.html"?>
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[984a23f] | 19 | <title>OpenSSL-&openssl-version;</title>
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[f45b1953] | 20 |
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[52d29f7] | 21 |
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| 22 | <sect2>
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| 23 | <title>Introduction to <application>OpenSSL</application></title>
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| 24 |
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| 25 | <para>The <application>OpenSSL</application> package contains management tools
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| 26 | and libraries relating to cryptography. These are useful for providing
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| 27 | cryptography functions to other packages, notably <application>OpenSSH
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| 28 | </application> and web browsers (for accessing secure https sites).</para>
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| 29 |
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| 30 | <sect3><title>Package information</title>
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| 31 | <itemizedlist spacing='compact'>
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| 32 | <listitem><para>Download (HTTP): <ulink url="&openssl-download-http;"/></para></listitem>
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| 33 | <listitem><para>Download (FTP): <ulink url="&openssl-download-ftp;"/></para></listitem>
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| 34 | <listitem><para>Download size: &openssl-size;</para></listitem>
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| 35 | <listitem><para>Estimated Disk space required: &openssl-buildsize;</para></listitem>
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| 36 | <listitem><para>Estimated build time: &openssl-time;</para></listitem></itemizedlist>
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| 37 | </sect3>
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| 38 | </sect2>
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| 39 |
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| 40 | <sect2>
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| 41 | <title>Installation of <application>OpenSSL</application></title>
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| 42 |
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| 43 | <para>Install <application>OpenSSL</application> by running the following commands:</para>
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| 44 |
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| 45 | <screen><userinput><command>sed 's/^passwd/openssl-passwd/' doc/apps/passwd.pod \
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| 46 | > doc/apps/openssl-passwd.pod &&
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| 47 | rm doc/apps/passwd.pod &&
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| 48 | mv doc/crypto/{,openssl_}threads.pod &&
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| 49 | sed -i -e 's/-m486/-march=i486/' Configure &&
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| 50 | ./config --openssldir=/etc/ssl --prefix=/usr shared &&
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| 51 | make MANDIR=/usr/share/man &&
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| 52 | make MANDIR=/usr/share/man install &&
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| 53 | cp -r certs /etc/ssl &&
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| 54 | rmdir /etc/ssl/lib</command></userinput></screen>
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| 55 |
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| 56 | </sect2>
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| 57 |
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| 58 | <sect2>
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| 59 | <title>Command explanations</title>
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| 60 |
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| 61 | <para><option>no-rc5 no-idea</option>: When added to the
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| 62 | <command>./config</command> command, this will eliminate the building of those
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| 63 | encryption methods. Patent licenses may be needed for you to utilize either of
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| 64 | those methods in your projects.</para>
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| 65 |
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| 66 | <para><command>rm doc/apps/passwd.pod</command>: This command prevents
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| 67 | <application>Open<acronym>SSL</acronym></application> from installing its
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| 68 | passwd man page over an existing man page with the same name.</para>
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| 69 |
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| 70 | <para><command>mv doc/crypto/{,openssl_}threads.pod</command>: This
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| 71 | commands prevents <application>Open<acronym>SSL</acronym></application> from
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| 72 | overwriting an existing man page from <application>Perl</application>.</para>
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| 73 |
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| 74 | <para><command>sed -i -e 's/-m486/-march=i486/' Configure</command>:
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| 75 | <application>GCC</application> issues a warning on every
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| 76 | compilation because the <command>Configure</command>
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| 77 | command uses deprecated <parameter>-m486</parameter> instead of
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| 78 | <parameter>-march=i486</parameter>.</para>
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| 79 |
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| 80 | <para><screen><command>make MANDIR=/usr/share/man
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| 81 | make MANDIR=/usr/share/man install</command></screen> These
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| 82 | commands install <application>OpenSSL</application> with the man pages
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| 83 | in <filename class='directory'>/usr/share/man</filename> instead of the
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| 84 | default which is <filename class='directory'>/etc/ssl/man</filename>.</para>
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| 85 |
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| 86 | <para><command>cp -r certs /etc/ssl</command>: The certificates
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| 87 | must be copied manually since the install script
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| 88 | skips this step.</para>
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| 89 |
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| 90 | <para><command>rmdir /etc/ssl/lib</command>: This is simply a tidy-up command.
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| 91 | For some reason, the <application>openssl</application> install routine creates
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| 92 | the <filename class='directory'>/etc/ssl/lib</filename> directory even though
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| 93 | the libraries have been installed in
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| 94 | <filename class='directory'>/usr/lib</filename>. We remove it to keep things
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| 95 | nice and tidy!</para>
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| 96 |
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| 97 | </sect2>
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| 98 |
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| 99 | <sect2>
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| 100 | <title>Configuring <application>OpenSSL</application></title>
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| 101 |
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| 102 | <sect3><title>Config files</title>
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| 103 | <para><filename>/etc/ssl/openssl.cnf</filename></para>
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| 104 | </sect3>
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| 105 |
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| 106 | <sect3><title>Configuration Information</title>
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| 107 |
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| 108 | <para>Most people who just want to use
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| 109 | <application>openssl</application> for providing functions
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| 110 | to other programs such as <application>OpenSSH</application> and web browsers won't need to worry
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| 111 | about configuring <application>OpenSSL</application>. Configuring
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| 112 | <application>OpenSSL</application> is an advanced topic and
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| 113 | so those who do would normally be expected to either know how to do it
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| 114 | or to be able to find out how to do it.</para>
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| 115 | </sect3>
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| 116 |
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| 117 | </sect2>
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| 118 |
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| 119 | <sect2>
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| 120 | <title>Contents</title>
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| 121 |
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| 122 | <para>The <application>Open<acronym>SSL</acronym></application> package contains <command>
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| 123 | c_rehash</command>, <command>openssl</command>, <filename
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| 124 | class='libraryfile'>libcrypto</filename> libraries and <filename
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| 125 | class='libraryfile'>libssl</filename> libraries.</para>
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| 126 |
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| 127 | </sect2>
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| 128 |
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| 129 | <sect2><title>Description</title>
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| 130 |
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| 131 | <sect3><title>c_rehash</title>
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| 132 |
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| 133 | <para><command>c_rehash</command> is a <application>Perl</application> script
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| 134 | that scans all files in a directory and adds symbolic links to their hash
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| 135 | values.</para>
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| 136 |
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| 137 | </sect3>
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| 138 |
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| 139 | <sect3><title>openssl</title>
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| 140 |
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| 141 | <para>The <command>openssl</command> program is a command-line tool for using
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| 142 | the various cryptography functions of
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| 143 | <application>Open<acronym>SSL</acronym></application>'s
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| 144 | crypto library from the shell. It can be used for various functions which are
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| 145 | documented in <command>man 1 openssl</command>.</para>
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| 146 |
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| 147 | </sect3>
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| 148 |
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| 149 | <sect3><title>libcrypto</title>
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| 150 |
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| 151 | <para>The <application>Open<acronym>SSL</acronym></application> crypto library implements a wide
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| 152 | range of cryptographic algorithms used in various Internet standards. The
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| 153 | services provided by this library are used by the
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| 154 | <application>Open<acronym>SSL</acronym>
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| 155 | </application> implementations of <acronym>SSL</acronym>, <acronym>TLS
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| 156 | </acronym> and <acronym>S/MIME</acronym>, and they have also been used to
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| 157 | implement <application>Open<acronym>SSH</acronym></application>,
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| 158 | <application>Open<acronym>PGP</acronym>
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| 159 | </application>, and other cryptographic standards.</para>
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| 160 |
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| 161 | </sect3>
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| 162 |
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| 163 | <sect3><title>libssl</title>
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| 164 |
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| 165 | <para>The <application>Open<acronym>SSL</acronym></application> <acronym>SSL</acronym> library
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| 166 | implements the Secure Sockets Layer (<acronym>SSL</acronym> v2/v3) and
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| 167 | Transport Layer Security (<acronym>TLS</acronym> v1) protocols. It provides a
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| 168 | rich <acronym>API</acronym>, documentation on which can be found by running
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| 169 | <command>man 3 ssl</command>.</para>
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| 170 |
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| 171 | </sect3>
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| 172 |
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| 173 | </sect2>
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[f45b1953] | 174 |
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| 175 | </sect1>
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[52d29f7] | 176 |
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