1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.5/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 | <!ENTITY openssl-download-http
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8 | "https://openssl.org/source/openssl-&openssl-version;.tar.gz">
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9 | <!ENTITY openssl-download-ftp
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10 | "ftp://openssl.org/source/openssl-&openssl-version;.tar.gz">
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11 | <!ENTITY openssl-md5sum "a06c547dac9044161a477211049f60ef">
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12 | <!ENTITY openssl-size "5.1 MB">
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13 | <!ENTITY openssl-buildsize "67 MB (additional 1 MB for the tests)">
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14 | <!ENTITY openssl-time "1.1 SBU (additional 0.3 SBU for the tests)">
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15 | ]>
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16 |
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17 | <sect1 id="openssl" xreflabel="OpenSSL-&openssl-version;">
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18 | <?dbhtml filename="openssl.html"?>
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19 |
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20 | <sect1info>
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21 | <othername>$LastChangedBy$</othername>
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22 | <date>$Date$</date>
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23 | </sect1info>
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24 |
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25 | <title>OpenSSL-&openssl-version;</title>
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26 |
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27 | <indexterm zone="openssl">
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28 | <primary sortas="a-OpenSSL">OpenSSL</primary>
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29 | </indexterm>
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30 |
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31 | <sect2 role="package">
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32 | <title>Introduction to OpenSSL</title>
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33 |
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34 | <para>
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35 | The <application>OpenSSL</application> package contains management tools
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36 | and libraries relating to cryptography. These are useful for providing
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37 | cryptography functions to other packages, such as
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38 | <application>OpenSSH</application>, email applications and web browsers
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39 | (for accessing HTTPS sites).
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40 | </para>
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41 |
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42 | &lfs77_checked; &gcc5_checked;
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43 |
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44 | <bridgehead renderas="sect3">Package Information</bridgehead>
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45 | <itemizedlist spacing="compact">
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46 | <listitem>
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47 | <para>
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48 | Download (HTTP): <ulink url="&openssl-download-http;"/>
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49 | </para>
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50 | </listitem>
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51 | <listitem>
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52 | <para>
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53 | Download (FTP): <ulink url="&openssl-download-ftp;"/>
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54 | </para>
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55 | </listitem>
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56 | <listitem>
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57 | <para>
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58 | Download MD5 sum: &openssl-md5sum;
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59 | </para>
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60 | </listitem>
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61 | <listitem>
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62 | <para>
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63 | Download size: &openssl-size;
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64 | </para>
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65 | </listitem>
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66 | <listitem>
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67 | <para>
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68 | Estimated disk space required: &openssl-buildsize;
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69 | </para>
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70 | </listitem>
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71 | <listitem>
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72 | <para>
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73 | Estimated build time: &openssl-time;
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74 | </para>
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75 | </listitem>
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76 | </itemizedlist>
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77 |
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78 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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79 | <itemizedlist spacing="compact">
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80 | <listitem>
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81 | <para>
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82 | Required patch:
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83 | <ulink url="&patch-root;/openssl-&openssl-version;-fix_parallel_build-2.patch"/>
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84 | </para>
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85 | </listitem>
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86 | </itemizedlist>
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87 |
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88 | <bridgehead renderas="sect3">OpenSSL Dependencies</bridgehead>
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89 |
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90 | <bridgehead renderas="sect4">Optional</bridgehead>
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91 | <para role="optional">
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92 | <xref linkend="mitkrb"/>
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93 | </para>
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94 |
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95 | <para condition="html" role="usernotes">
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96 | User Notes: <ulink url='&blfs-wiki;/OpenSSL'/>
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97 | </para>
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98 | </sect2>
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99 |
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100 | <sect2 role="installation">
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101 | <title>Installation of OpenSSL</title>
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102 |
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103 | <para>
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104 | Install <application>OpenSSL</application> with the following commands:
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105 | </para>
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106 |
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107 | <!-- libdir=lib so it doesn't write over /usr/lib64 symlink on 64 bit system.
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108 | Might break packaging. -->
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109 |
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110 | <screen><userinput>patch -Np1 -i ../openssl-&openssl-version;-fix_parallel_build-2.patch &&
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111 |
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112 | ./config --prefix=/usr \
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113 | --openssldir=/etc/ssl \
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114 | --libdir=lib \
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115 | shared \
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116 | zlib-dynamic &&
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117 | make</userinput></screen>
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118 |
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119 | <para>
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120 | To test the results, issue: <command>make -j1 test</command>.
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121 | </para>
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122 |
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123 | <para>
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124 | If you want to disable installing the static libraries, use this sed:
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125 | </para>
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126 |
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127 | <screen><userinput>sed -i 's# libcrypto.a##;s# libssl.a##' Makefile</userinput></screen>
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128 |
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129 | <para>
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130 | Now, as the <systemitem class="username">root</systemitem> user:
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131 | </para>
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132 |
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133 | <!-- dev note: make INSTALL_PREFIX=<DESTDIR> MANDIR=/usr/share/man MANSUFFIX=ssl install -->
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134 |
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135 | <screen role="root"><userinput>make MANDIR=/usr/share/man MANSUFFIX=ssl install &&
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136 | install -dv -m755 /usr/share/doc/openssl-&openssl-version; &&
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137 | cp -vfr doc/* /usr/share/doc/openssl-&openssl-version;</userinput></screen>
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138 |
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139 | </sect2>
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140 |
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141 | <sect2 role="commands">
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142 | <title>Command Explanations</title>
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143 |
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144 | <para>
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145 | <parameter>shared</parameter>: This parameter forces the creation of
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146 | shared libraries along with the static libraries.
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147 | </para>
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148 |
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149 | <para>
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150 | <parameter>zlib-dynamic</parameter>: This parameter adds
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151 | compression/decompression functionality using the
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152 | <filename class="libraryfile">libz</filename> library.
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153 | </para>
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154 |
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155 | <para>
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156 | <option>no-rc5 no-idea</option>: When added to the
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157 | <command>./config</command> command, this will eliminate the building
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158 | of those encryption methods. Patent licenses may be needed for you to
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159 | utilize either of those methods in your projects.
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160 | </para>
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161 |
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162 | <para>
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163 | <command>make MANDIR=/usr/share/man MANSUFFIX=ssl install</command>:
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164 | This command installs <application>OpenSSL</application> with the man
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165 | pages in <filename class="directory">/usr/share/man</filename>
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166 | instead of <filename class="directory">/etc/ssl/man</filename> and
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167 | appends "ssl" suffix to the manual page names to avoid conflicts with
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168 | manual pages installed by other packages.
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169 | </para>
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170 |
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171 | </sect2>
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172 |
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173 | <sect2 role="configuration">
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174 | <title>Configuring OpenSSL</title>
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175 |
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176 | <sect3 id="openssl-config">
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177 | <title>Config Files</title>
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178 |
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179 | <para>
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180 | <filename>/etc/ssl/openssl.cnf</filename>
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181 | </para>
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182 |
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183 | <indexterm zone="openssl openssl-config">
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184 | <primary sortas="e-etc-ssl-openssl.cnf">/etc/ssl/openssl.cnf</primary>
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185 | </indexterm>
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186 |
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187 | </sect3>
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188 |
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189 | <sect3>
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190 | <title>Configuration Information</title>
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191 |
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192 | <para>
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193 | Most users will want to install Certificate Authority Certificates
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194 | for validation of downloaded certificates. For example, these
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195 | certificates can be used by <xref linkend='git'/>,
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196 | <xref linkend='curl'/> or <xref linkend='wget'/> when accessing secure
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197 | (https protocol) sites. To do this, follow the instructions from the
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198 | <xref linkend='cacerts'/> page.
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199 | </para>
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200 |
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201 | <para>
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202 | Users who just want to use <application>OpenSSL</application> for
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203 | providing functions to other programs such as
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204 | <application>OpenSSH</application> and web browsers do not need to worry
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205 | about additional configuration. This is an advanced topic and so those
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206 | who do need it would normally be expected to either know how to properly
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207 | update <filename>/etc/ssl/openssl.cnf</filename> or be able to find out
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208 | how to do it.
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209 | </para>
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210 |
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211 | </sect3>
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212 |
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213 | </sect2>
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214 |
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215 | <sect2 role="content">
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216 | <title>Contents</title>
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217 |
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218 | <segmentedlist>
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219 | <segtitle>Installed Programs</segtitle>
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220 | <segtitle>Installed Libraries</segtitle>
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221 | <segtitle>Installed Directories</segtitle>
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222 |
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223 | <seglistitem>
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224 | <seg>
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225 | c_rehash and openssl
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226 | </seg>
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227 | <seg>
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228 | libcrypto.{so,a} and libssl.{so,a}
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229 | </seg>
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230 | <seg>
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231 | /etc/ssl,
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232 | /usr/include/openssl,
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233 | /usr/lib/engines and
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234 | /usr/share/doc/openssl-&openssl-version;
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235 | </seg>
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236 | </seglistitem>
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237 | </segmentedlist>
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238 |
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239 | <variablelist>
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240 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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241 | <?dbfo list-presentation="list"?>
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242 | <?dbhtml list-presentation="table"?>
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243 |
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244 | <varlistentry id="c_rehash">
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245 | <term><command>c_rehash</command></term>
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246 | <listitem>
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247 | <para>
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248 | is a <application>Perl</application> script that scans all files in
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249 | a directory and adds symbolic links to their hash values.
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250 | </para>
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251 | <indexterm zone="openssl c_rehash">
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252 | <primary sortas="b-c_rehash">c_rehash</primary>
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253 | </indexterm>
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254 | </listitem>
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255 | </varlistentry>
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256 |
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257 | <varlistentry id="openssl-prog">
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258 | <term><command>openssl</command></term>
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259 | <listitem>
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260 | <para>
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261 | is a command-line tool for using the various cryptography functions
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262 | of <application>OpenSSL</application>'s crypto library from the
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263 | shell. It can be used for various functions which are documented in
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264 | <command>man 1 openssl</command>.
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265 | </para>
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266 | <indexterm zone="openssl openssl-prog">
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267 | <primary sortas="b-openssl">openssl</primary>
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268 | </indexterm>
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269 | </listitem>
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270 | </varlistentry>
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271 |
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272 | <varlistentry id="libcrypto">
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273 | <term><filename class="libraryfile">libcrypto.{so,a}</filename></term>
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274 | <listitem>
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275 | <para>
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276 | implements a wide range of cryptographic algorithms used in various
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277 | Internet standards. The services provided by this library are used
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278 | by the <application>OpenSSL</application> implementations of SSL,
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279 | TLS and S/MIME, and they have also been used to implement
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280 | <application>OpenSSH</application>,
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281 | <application>OpenPGP</application>, and other cryptographic
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282 | standards.
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283 | </para>
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284 | <indexterm zone="openssl libcrypto">
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285 | <primary sortas="c-libcrypto">libcrypto.{so,a}</primary>
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286 | </indexterm>
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287 | </listitem>
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288 | </varlistentry>
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289 |
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290 | <varlistentry id="libssl">
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291 | <term><filename class="libraryfile">libssl.{so,a}</filename></term>
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292 | <listitem>
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293 | <para>
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294 | implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer
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295 | Security (TLS v1) protocols. It provides a rich API, documentation
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296 | on which can be found by running <command>man 3 ssl</command>.
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297 | </para>
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298 | <indexterm zone="openssl libssl">
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299 | <primary sortas="c-libssl">libssl.{so,a}</primary>
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300 | </indexterm>
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301 | </listitem>
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302 | </varlistentry>
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303 |
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304 | </variablelist>
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305 |
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306 | </sect2>
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307 |
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308 | </sect1>
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