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<h1 class='fqn'><span class='in-band'>Enum <a href='../../index.html'>openssl</a>::<wbr><a href='../index.html'>x509</a>::<wbr><a href='index.html'>extension</a>::<wbr><a class='enum' href=''>Extension</a></span><span class='out-of-band'><span id='render-detail'>
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                       [<span class='inner'>&#x2212;</span>]
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               </span><a id='src-3164' class='srclink' href='../../../src/openssl/x509/extension.rs.html#24-56' title='goto source code'>[src]</a></span></h1>
<pre class='rust enum'>pub enum Extension {
    KeyUsage(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/vec/struct.Vec.html' title='collections::vec::Vec'>Vec</a>&lt;<a class='enum' href='../../../openssl/x509/extension/enum.KeyUsageOption.html' title='openssl::x509::extension::KeyUsageOption'>KeyUsageOption</a>&gt;),
    ExtKeyUsage(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/vec/struct.Vec.html' title='collections::vec::Vec'>Vec</a>&lt;<a class='enum' href='../../../openssl/x509/extension/enum.ExtKeyUsageOption.html' title='openssl::x509::extension::ExtKeyUsageOption'>ExtKeyUsageOption</a>&gt;),
    SubjectAltName(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/vec/struct.Vec.html' title='collections::vec::Vec'>Vec</a>&lt;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.tuple.html'>(</a><a class='enum' href='../../../openssl/x509/extension/enum.AltNameOption.html' title='openssl::x509::extension::AltNameOption'>AltNameOption</a>, <a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a><a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.tuple.html'>)</a>&gt;),
    IssuerAltName(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/vec/struct.Vec.html' title='collections::vec::Vec'>Vec</a>&lt;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.tuple.html'>(</a><a class='enum' href='../../../openssl/x509/extension/enum.AltNameOption.html' title='openssl::x509::extension::AltNameOption'>AltNameOption</a>, <a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a><a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.tuple.html'>)</a>&gt;),
    OtherNid(<a class='enum' href='../../../openssl/nid/enum.Nid.html' title='openssl::nid::Nid'>Nid</a>,&nbsp;<a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a>),
    OtherStr(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a>,&nbsp;<a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a>),
}</pre><div class='docblock'><p>A X.509 v3 certificate extension.</p>

<p>Only one extension of each type is allow in a certificate.
See RFC 3280 for more information about extensions.</p>
</div><h2 class='variants'>Variants</h2>
<span id='variant.KeyUsage' class='variant'><code>KeyUsage(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/vec/struct.Vec.html' title='collections::vec::Vec'>Vec</a>&lt;<a class='enum' href='../../../openssl/x509/extension/enum.KeyUsageOption.html' title='openssl::x509::extension::KeyUsageOption'>KeyUsageOption</a>&gt;)</code></span><div class='docblock'><p>The purposes of the key contained in the certificate</p>
</div><span id='variant.ExtKeyUsage' class='variant'><code>ExtKeyUsage(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/vec/struct.Vec.html' title='collections::vec::Vec'>Vec</a>&lt;<a class='enum' href='../../../openssl/x509/extension/enum.ExtKeyUsageOption.html' title='openssl::x509::extension::ExtKeyUsageOption'>ExtKeyUsageOption</a>&gt;)</code></span><div class='docblock'><p>The extended purposes of the key contained in the certificate</p>
</div><span id='variant.SubjectAltName' class='variant'><code>SubjectAltName(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/vec/struct.Vec.html' title='collections::vec::Vec'>Vec</a>&lt;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.tuple.html'>(</a><a class='enum' href='../../../openssl/x509/extension/enum.AltNameOption.html' title='openssl::x509::extension::AltNameOption'>AltNameOption</a>, <a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a><a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.tuple.html'>)</a>&gt;)</code></span><div class='docblock'><p>Subject Alternative Names</p>
</div><span id='variant.IssuerAltName' class='variant'><code>IssuerAltName(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/vec/struct.Vec.html' title='collections::vec::Vec'>Vec</a>&lt;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.tuple.html'>(</a><a class='enum' href='../../../openssl/x509/extension/enum.AltNameOption.html' title='openssl::x509::extension::AltNameOption'>AltNameOption</a>, <a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a><a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.tuple.html'>)</a>&gt;)</code></span><div class='docblock'><p>Issuer Alternative Names</p>
</div><span id='variant.OtherNid' class='variant'><code>OtherNid(<a class='enum' href='../../../openssl/nid/enum.Nid.html' title='openssl::nid::Nid'>Nid</a>,&nbsp;<a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a>)</code></span><div class='docblock'><p>Arbitrary extensions by NID. See <code>man x509v3_config</code> for value syntax.</p>

<p>You must not use this to add extensions which this enum can express directly.</p>

<pre class='rust rust-example-rendered'>
<span class='kw'>use</span> <span class='ident'>openssl</span>::<span class='ident'>x509</span>::<span class='ident'>extension</span>::<span class='ident'>Extension</span>::<span class='op'>*</span>;
<span class='kw'>use</span> <span class='ident'>openssl</span>::<span class='ident'>nid</span>::<span class='ident'>Nid</span>;

<span class='ident'>generator</span>.<span class='ident'>add_extension</span>(<span class='ident'>OtherNid</span>(<span class='ident'>Nid</span>::<span class='ident'>BasicConstraints</span>,<span class='string'>&quot;critical,CA:TRUE&quot;</span>.<span class='ident'>to_owned</span>()));</pre>
</div><span id='variant.OtherStr' class='variant'><code>OtherStr(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a>,&nbsp;<a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a>)</code></span><div class='docblock'><p>Arbitrary extensions by OID string. See <code>man ASN1_generate_nconf</code> for value syntax.</p>

<p>You must not use this to add extensions which this enum can express directly.</p>

<pre class='rust rust-example-rendered'>
<span class='kw'>use</span> <span class='ident'>openssl</span>::<span class='ident'>x509</span>::<span class='ident'>extension</span>::<span class='ident'>Extension</span>::<span class='op'>*</span>;

<span class='ident'>generator</span>.<span class='ident'>add_extension</span>(<span class='ident'>OtherStr</span>(<span class='string'>&quot;2.999.2&quot;</span>.<span class='ident'>to_owned</span>(),<span class='string'>&quot;ASN1:UTF8:example value&quot;</span>.<span class='ident'>to_owned</span>()));</pre>
</div><h2 id='methods'>Methods</h2><h3 class='impl'><span class='in-band'><code>impl <a class='enum' href='../../../openssl/x509/extension/enum.Extension.html' title='openssl::x509::extension::Extension'>Extension</a></code></span><span class='out-of-band'><div class='ghost'></div><a id='src-3179' class='srclink' href='../../../src/openssl/x509/extension.rs.html#58-69' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.get_type' class='method'><code>fn <a href='#method.get_type' class='fnname'>get_type</a>(&amp;self) -&gt; <a class='enum' href='../../../openssl/x509/extension/enum.ExtensionType.html' title='openssl::x509::extension::ExtensionType'>ExtensionType</a></code></h4>
</div><h2 id='implementations'>Trait Implementations</h2><h3 class='impl'><span class='in-band'><code>impl <a class='trait' href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html' title='core::clone::Clone'>Clone</a> for <a class='enum' href='../../../openssl/x509/extension/enum.Extension.html' title='openssl::x509::extension::Extension'>Extension</a></code></span><span class='out-of-band'><div class='ghost'></div><a id='src-3153' class='srclink' href='../../../src/openssl/x509/extension.rs.html#23' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.clone' class='method'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&amp;self) -&gt; <a class='enum' href='../../../openssl/x509/extension/enum.Extension.html' title='openssl::x509::extension::Extension'>Extension</a></code></h4>
<div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
</div><h4 id='method.clone_from' class='method'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&amp;mut self, source: &amp;Self)</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></h4>
<div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
</div></div><h3 class='impl'><span class='in-band'><code>impl <a class='trait' href='https://doc.rust-lang.org/nightly/collections/string/trait.ToString.html' title='collections::string::ToString'>ToString</a> for <a class='enum' href='../../../openssl/x509/extension/enum.Extension.html' title='openssl::x509::extension::Extension'>Extension</a></code></span><span class='out-of-band'><div class='ghost'></div><a id='src-3200' class='srclink' href='../../../src/openssl/x509/extension.rs.html#103-120' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.to_string' class='method'><code>fn <a href='https://doc.rust-lang.org/nightly/collections/string/trait.ToString.html#tymethod.to_string' class='fnname'>to_string</a>(&amp;self) -&gt; <a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a></code></h4>
<div class='docblock'><p>Converts the given value to a <code>String</code>. <a href="https://doc.rust-lang.org/nightly/collections/string/trait.ToString.html#tymethod.to_string">Read more</a></p>
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