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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Rustls - a modern TLS library"><title>rustls - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-ac92e1bbe349e143.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="rustls" data-themes="" data-resource-suffix="" data-rustdoc-version="1.76.0 (07dca489a 2024-02-04)" data-channel="1.76.0" data-search-js="search-2b6ce74ff89ae146.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../static.files/storage-f2adc0d6ca4d09fb.js"></script><script defer src="../crates.js"></script><script defer src="../static.files/main-305769736d49e732.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-feafe1bb7466e4bd.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc mod crate"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">&#9776;</button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../rustls/index.html">rustls</a><span class="version">0.21.7</span></h2></div><div class="sidebar-elems"><ul class="block">
<li><a id="all-types" href="all.html">All Items</a></li></ul><section><ul class="block"><li><a href="#reexports">Re-exports</a></li><li><a href="#modules">Modules</a></li><li><a href="#structs">Structs</a></li><li><a href="#enums">Enums</a></li><li><a href="#statics">Statics</a></li><li><a href="#traits">Traits</a></li></ul></section></div></nav><div class="sidebar-resizer"></div>
<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../rustls/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press S to search, ? for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Crate <a class="mod" href="#">rustls</a><button id="copy-path" title="Copy item path to clipboard"><img src="../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../src/rustls/lib.rs.html#1-526">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><h2 id="rustls---a-modern-tls-library"><a href="#rustls---a-modern-tls-library">Rustls - a modern TLS library</a></h2>
<p>Rustls is a TLS library that aims to provide a good level of cryptographic security,
requires no configuration to achieve that security, and provides no unsafe features or
obsolete cryptography.</p>
<h3 id="current-features"><a href="#current-features">Current features</a></h3>
<ul>
<li>TLS1.2 and TLS1.3.</li>
<li>ECDSA, Ed25519 or RSA server authentication by clients.</li>
<li>ECDSA, Ed25519 or RSA server authentication by servers.</li>
<li>Forward secrecy using ECDHE; with curve25519, nistp256 or nistp384 curves.</li>
<li>AES128-GCM and AES256-GCM bulk encryption, with safe nonces.</li>
<li>ChaCha20-Poly1305 bulk encryption (<a href="https://tools.ietf.org/html/rfc7905">RFC7905</a>).</li>
<li>ALPN support.</li>
<li>SNI support.</li>
<li>Tunable fragment size to make TLS messages match size of underlying transport.</li>
<li>Optional use of vectored IO to minimise system calls.</li>
<li>TLS1.2 session resumption.</li>
<li>TLS1.2 resumption via tickets (<a href="https://tools.ietf.org/html/rfc5077">RFC5077</a>).</li>
<li>TLS1.3 resumption via tickets or session storage.</li>
<li>TLS1.3 0-RTT data for clients.</li>
<li>TLS1.3 0-RTT data for servers.</li>
<li>Client authentication by clients.</li>
<li>Client authentication by servers.</li>
<li>Extended master secret support (<a href="https://tools.ietf.org/html/rfc7627">RFC7627</a>).</li>
<li>Exporters (<a href="https://tools.ietf.org/html/rfc5705">RFC5705</a>).</li>
<li>OCSP stapling by servers.</li>
<li>SCT stapling by servers.</li>
<li>SCT verification by clients.</li>
</ul>
<h3 id="possible-future-features"><a href="#possible-future-features">Possible future features</a></h3>
<ul>
<li>PSK support.</li>
<li>OCSP verification by clients.</li>
<li>Certificate pinning.</li>
</ul>
<h3 id="non-features"><a href="#non-features">Non-features</a></h3>
<p>For reasons <a href="manual/index.html" title="mod rustls::manual">explained in the manual</a>,
rustls does not and will not support:</p>
<ul>
<li>SSL1, SSL2, SSL3, TLS1 or TLS1.1.</li>
<li>RC4.</li>
<li>DES or triple DES.</li>
<li>EXPORT ciphersuites.</li>
<li>MAC-then-encrypt ciphersuites.</li>
<li>Ciphersuites without forward secrecy.</li>
<li>Renegotiation.</li>
<li>Kerberos.</li>
<li>Compression.</li>
<li>Discrete-log Diffie-Hellman.</li>
<li>Automatic protocol version downgrade.</li>
</ul>
<p>There are plenty of other libraries that provide these features should you
need them.</p>
<h4 id="platform-support"><a href="#platform-support">Platform support</a></h4>
<p>While Rustls itself is platform independent it uses
<a href="https://crates.io/crates/ring"><code>ring</code></a> for implementing the cryptography in
TLS. As a result, rustls only runs on platforms
supported by <code>ring</code>. At the time of writing this means x86, x86-64, armv7, and
aarch64. For more information see <a href="https://github.com/briansmith/ring/blob/9cc0d45f4d8521f467bb3a621e74b1535e118188/.github/workflows/ci.yml#L151-L167">the supported <code>ring</code> CI
targets</a>.</p>
<p>Rustls requires Rust 1.60 or later.</p>
<h3 id="design-overview"><a href="#design-overview">Design Overview</a></h3><h4 id="rustls-does-not-take-care-of-network-io"><a href="#rustls-does-not-take-care-of-network-io">Rustls does not take care of network IO</a></h4>
<p>It doesnt make or accept TCP connections, or do DNS, or read or write files.</p>
<p>Theres example client and server code which uses mio to do all needed network
IO.</p>
<h4 id="rustls-provides-encrypted-pipes"><a href="#rustls-provides-encrypted-pipes">Rustls provides encrypted pipes</a></h4>
<p>These are the <a href="server/struct.ServerConnection.html" title="struct rustls::server::ServerConnection"><code>ServerConnection</code></a> and <a href="client/struct.ClientConnection.html" title="struct rustls::client::ClientConnection"><code>ClientConnection</code></a> types. You supply raw TLS traffic
on the left (via the <a href="enum.Connection.html#method.read_tls" title="method rustls::Connection::read_tls"><code>read_tls()</code></a> and <a href="enum.Connection.html#method.read_tls" title="method rustls::Connection::read_tls"><code>write_tls()</code></a> methods) and then read/write the
plaintext on the right:</p>
<div class="example-wrap"><pre class="language-text"><code> TLS Plaintext
=== =========
read_tls() +-----------------------+ reader() as io::Read
| |
+---------&gt; ClientConnection +---------&gt;
| or |
&lt;---------+ ServerConnection &lt;---------+
| |
write_tls() +-----------------------+ writer() as io::Write
</code></pre></div><h4 id="rustls-takes-care-of-server-certificate-verification"><a href="#rustls-takes-care-of-server-certificate-verification">Rustls takes care of server certificate verification</a></h4>
<p>You do not need to provide anything other than a set of root certificates to trust.
Certificate verification cannot be turned off or disabled in the main API.</p>
<h3 id="getting-started"><a href="#getting-started">Getting started</a></h3>
<p>This is the minimum you need to do to make a TLS client connection.</p>
<p>First we load some root certificates. These are used to authenticate the server.
The recommended way is to depend on the <code>webpki_roots</code> crate which contains
the Mozilla set of root certificates.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span><span class="kw-2">mut </span>root_store = rustls::RootCertStore::empty();
root_store.add_trust_anchors(
webpki_roots::TLS_SERVER_ROOTS
.iter()
.map(|ta| {
rustls::OwnedTrustAnchor::from_subject_spki_name_constraints(
ta.subject,
ta.spki,
ta.name_constraints,
)
})
);</code></pre></div>
<p>Next, we make a <code>ClientConfig</code>. Youre likely to make one of these per process,
and use it for all connections made by that process.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>config = rustls::ClientConfig::builder()
.with_safe_defaults()
.with_root_certificates(root_store)
.with_no_client_auth();</code></pre></div>
<p>Now we can make a connection. You need to provide the servers hostname so we
know what to expect to find in the servers certificate.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>rc_config = Arc::new(config);
<span class="kw">let </span>example_com = <span class="string">"example.com"</span>.try_into().unwrap();
<span class="kw">let </span><span class="kw-2">mut </span>client = rustls::ClientConnection::new(rc_config, example_com);</code></pre></div>
<p>Now you should do appropriate IO for the <code>client</code> object. If <code>client.wants_read()</code> yields
true, you should call <code>client.read_tls()</code> when the underlying connection has data.
Likewise, if <code>client.wants_write()</code> yields true, you should call <code>client.write_tls()</code>
when the underlying connection is able to send data. You should continue doing this
as long as the connection is valid.</p>
<p>The return types of <code>read_tls()</code> and <code>write_tls()</code> only tell you if the IO worked. No
parsing or processing of the TLS messages is done. After each <code>read_tls()</code> you should
therefore call <code>client.process_new_packets()</code> which parses and processes the messages.
Any error returned from <code>process_new_packets</code> is fatal to the connection, and will tell you
why. For example, if the servers certificate is expired <code>process_new_packets</code> will
return <code>Err(InvalidCertificate(Expired))</code>. From this point on,
<code>process_new_packets</code> will not do any new work and will return that error continually.</p>
<p>You can extract newly received data by calling <code>client.reader()</code> (which implements the
<code>io::Read</code> trait). You can send data to the peer by calling <code>client.writer()</code> (which
implements <code>io::Write</code> trait). Note that <code>client.writer().write()</code> buffers data you
send if the TLS connection is not yet established: this is useful for writing (say) a
HTTP request, but this is buffered so avoid large amounts of data.</p>
<p>The following code uses a fictional socket IO API for illustration, and does not handle
errors.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::io;
<span class="kw">use </span>rustls::Connection;
client.writer().write(<span class="string">b"GET / HTTP/1.0\r\n\r\n"</span>).unwrap();
<span class="kw">let </span><span class="kw-2">mut </span>socket = connect(<span class="string">"example.com"</span>, <span class="number">443</span>);
<span class="kw">loop </span>{
<span class="kw">if </span>client.wants_read() &amp;&amp; socket.ready_for_read() {
client.read_tls(<span class="kw-2">&amp;mut </span>socket).unwrap();
client.process_new_packets().unwrap();
<span class="kw">let </span><span class="kw-2">mut </span>plaintext = Vec::new();
client.reader().read_to_end(<span class="kw-2">&amp;mut </span>plaintext).unwrap();
io::stdout().write(<span class="kw-2">&amp;</span>plaintext).unwrap();
}
<span class="kw">if </span>client.wants_write() &amp;&amp; socket.ready_for_write() {
client.write_tls(<span class="kw-2">&amp;mut </span>socket).unwrap();
}
socket.wait_for_something_to_happen();
}</code></pre></div>
<h2 id="examples"><a href="#examples">Examples</a></h2>
<p><a href="https://github.com/rustls/rustls/blob/main/examples/src/bin/tlsserver-mio.rs"><code>tlsserver</code></a>
and <a href="https://github.com/rustls/rustls/blob/main/examples/src/bin/tlsclient-mio.rs"><code>tlsclient</code></a>
are full worked examples. These both use mio.</p>
<h2 id="crate-features"><a href="#crate-features">Crate features</a></h2>
<p>Heres a list of what features are exposed by the rustls crate and what
they mean.</p>
<ul>
<li>
<p><code>logging</code>: this makes the rustls crate depend on the <code>log</code> crate.
rustls outputs interesting protocol-level messages at <code>trace!</code> and <code>debug!</code>
level, and protocol-level errors at <code>warn!</code> and <code>error!</code> level. The log
messages do not contain secret key data, and so are safe to archive without
affecting session security. This feature is in the default set.</p>
</li>
<li>
<p><code>dangerous_configuration</code>: this feature enables a <code>dangerous()</code> method on
<code>ClientConfig</code> and <code>ServerConfig</code> that allows setting inadvisable options,
such as replacing the certificate verification process. Applications
requesting this feature should be reviewed carefully.</p>
</li>
<li>
<p><code>quic</code>: this feature exposes additional constructors and functions
for using rustls as a TLS library for QUIC. See the <code>quic</code> module for
details of these. You will only need this if youre writing a QUIC
implementation.</p>
</li>
<li>
<p><code>tls12</code>: enables support for TLS version 1.2. This feature is in the default
set. Note that, due to the additive nature of Cargo features and because it
is enabled by default, other crates in your dependency graph could re-enable
it for your application. If you want to disable TLS 1.2 for security reasons,
consider explicitly enabling TLS 1.3 only in the config builder API.</p>
</li>
<li>
<p><code>read_buf</code>: When building with Rust Nightly, adds support for the unstable
<code>std::io::ReadBuf</code> and related APIs. This reduces costs from initializing
buffers. Will do nothing on non-Nightly releases.</p>
</li>
</ul>
</div></details><h2 id="reexports" class="section-header"><a href="#reexports">Re-exports</a></h2><ul class="item-table"><li><div class="item-name" id="reexport.ClientConfig"><code>pub use client::<a class="struct" href="client/struct.ClientConfig.html" title="struct rustls::client::ClientConfig">ClientConfig</a>;</code></div></li><li><div class="item-name" id="reexport.ClientConnection"><code>pub use client::<a class="struct" href="client/struct.ClientConnection.html" title="struct rustls::client::ClientConnection">ClientConnection</a>;</code></div></li><li><div class="item-name" id="reexport.ServerName"><code>pub use client::<a class="enum" href="client/enum.ServerName.html" title="enum rustls::client::ServerName">ServerName</a>;</code></div></li><li><div class="item-name" id="reexport.ServerConfig"><code>pub use server::<a class="struct" href="server/struct.ServerConfig.html" title="struct rustls::server::ServerConfig">ServerConfig</a>;</code></div></li><li><div class="item-name" id="reexport.ServerConnection"><code>pub use server::<a class="struct" href="server/struct.ServerConnection.html" title="struct rustls::server::ServerConnection">ServerConnection</a>;</code></div></li></ul><h2 id="modules" class="section-header"><a href="#modules">Modules</a></h2><ul class="item-table"><li><div class="item-name"><a class="mod" href="cipher_suite/index.html" title="mod rustls::cipher_suite">cipher_suite</a></div><div class="desc docblock-short">All defined ciphersuites appear in this module.</div></li><li><div class="item-name"><a class="mod" href="client/index.html" title="mod rustls::client">client</a></div><div class="desc docblock-short">Items for use in a client.</div></li><li><div class="item-name"><a class="mod" href="internal/index.html" title="mod rustls::internal">internal</a></div><div class="desc docblock-short">Internal classes which may be useful outside the library.
The contents of this section DO NOT form part of the stable interface.</div></li><li><div class="item-name"><a class="mod" href="kx_group/index.html" title="mod rustls::kx_group">kx_group</a></div><div class="desc docblock-short">All defined key exchange groups appear in this module.</div></li><li><div class="item-name"><a class="mod" href="manual/index.html" title="mod rustls::manual">manual</a></div><div class="desc docblock-short">This is the rustls manual.</div></li><li><div class="item-name"><a class="mod" href="server/index.html" title="mod rustls::server">server</a></div><div class="desc docblock-short">Items for use in a server.</div></li><li><div class="item-name"><a class="mod" href="sign/index.html" title="mod rustls::sign">sign</a></div><div class="desc docblock-short">Message signing interfaces and implementations.</div></li><li><div class="item-name"><a class="mod" href="version/index.html" title="mod rustls::version">version</a></div><div class="desc docblock-short">All defined protocol versions appear in this module.</div></li></ul><h2 id="structs" class="section-header"><a href="#structs">Structs</a></h2><ul class="item-table"><li><div class="item-name"><a class="struct" href="struct.Certificate.html" title="struct rustls::Certificate">Certificate</a></div><div class="desc docblock-short">This type contains a single certificate by value.</div></li><li><div class="item-name"><a class="struct" href="struct.CommonState.html" title="struct rustls::CommonState">CommonState</a></div><div class="desc docblock-short">Connection state common to both client and server connections.</div></li><li><div class="item-name"><a class="struct" href="struct.ConfigBuilder.html" title="struct rustls::ConfigBuilder">ConfigBuilder</a></div><div class="desc docblock-short">Building a <a href="server/struct.ServerConfig.html" title="struct rustls::server::ServerConfig"><code>ServerConfig</code></a> or <a href="client/struct.ClientConfig.html" title="struct rustls::client::ClientConfig"><code>ClientConfig</code></a> in a linker-friendly and
complete way.</div></li><li><div class="item-name"><a class="struct" href="struct.ConnectionCommon.html" title="struct rustls::ConnectionCommon">ConnectionCommon</a></div><div class="desc docblock-short">Interface shared by client and server connections.</div></li><li><div class="item-name"><a class="struct" href="struct.DigitallySignedStruct.html" title="struct rustls::DigitallySignedStruct">DigitallySignedStruct</a></div><div class="desc docblock-short">This type combines a <a href="enum.SignatureScheme.html" title="enum rustls::SignatureScheme"><code>SignatureScheme</code></a> and a signature payload produced with that scheme.</div></li><li><div class="item-name"><a class="struct" href="struct.DistinguishedName.html" title="struct rustls::DistinguishedName">DistinguishedName</a></div><div class="desc docblock-short">A <code>DistinguishedName</code> is a <code>Vec&lt;u8&gt;</code> wrapped in internal types.</div></li><li><div class="item-name"><a class="struct" href="struct.IoState.html" title="struct rustls::IoState">IoState</a></div><div class="desc docblock-short">Values of this structure are returned from <a href="enum.Connection.html#method.process_new_packets" title="method rustls::Connection::process_new_packets"><code>Connection::process_new_packets</code></a>
and tell the caller the current I/O state of the TLS connection.</div></li><li><div class="item-name"><a class="struct" href="struct.KeyLogFile.html" title="struct rustls::KeyLogFile">KeyLogFile</a></div><div class="desc docblock-short"><a href="trait.KeyLog.html" title="trait rustls::KeyLog"><code>KeyLog</code></a> implementation that opens a file whose name is
given by the <code>SSLKEYLOGFILE</code> environment variable, and writes
keys into it.</div></li><li><div class="item-name"><a class="struct" href="struct.NoKeyLog.html" title="struct rustls::NoKeyLog">NoKeyLog</a></div><div class="desc docblock-short">KeyLog that does exactly nothing.</div></li><li><div class="item-name"><a class="struct" href="struct.OwnedTrustAnchor.html" title="struct rustls::OwnedTrustAnchor">OwnedTrustAnchor</a></div><div class="desc docblock-short">A trust anchor, commonly known as a “Root Certificate.”</div></li><li><div class="item-name"><a class="struct" href="struct.PrivateKey.html" title="struct rustls::PrivateKey">PrivateKey</a></div><div class="desc docblock-short">This type contains a private key by value.</div></li><li><div class="item-name"><a class="struct" href="struct.Reader.html" title="struct rustls::Reader">Reader</a></div><div class="desc docblock-short">A structure that implements <a href="https://doc.rust-lang.org/1.76.0/std/io/trait.Read.html" title="trait std::io::Read"><code>std::io::Read</code></a> for reading plaintext.</div></li><li><div class="item-name"><a class="struct" href="struct.RootCertStore.html" title="struct rustls::RootCertStore">RootCertStore</a></div><div class="desc docblock-short">A container for root certificates able to provide a root-of-trust
for connection authentication.</div></li><li><div class="item-name"><a class="struct" href="struct.Stream.html" title="struct rustls::Stream">Stream</a></div><div class="desc docblock-short">This type implements <code>io::Read</code> and <code>io::Write</code>, encapsulating
a Connection <code>C</code> and an underlying transport <code>T</code>, such as a socket.</div></li><li><div class="item-name"><a class="struct" href="struct.StreamOwned.html" title="struct rustls::StreamOwned">StreamOwned</a></div><div class="desc docblock-short">This type implements <code>io::Read</code> and <code>io::Write</code>, encapsulating
and owning a Connection <code>C</code> and an underlying blocking transport
<code>T</code>, such as a socket.</div></li><li><div class="item-name"><a class="struct" href="struct.SupportedKxGroup.html" title="struct rustls::SupportedKxGroup">SupportedKxGroup</a></div><div class="desc docblock-short">A key-exchange group supported by rustls.</div></li><li><div class="item-name"><a class="struct" href="struct.SupportedProtocolVersion.html" title="struct rustls::SupportedProtocolVersion">SupportedProtocolVersion</a></div><div class="desc docblock-short">A TLS protocol version supported by rustls.</div></li><li><div class="item-name"><a class="struct" href="struct.Ticketer.html" title="struct rustls::Ticketer">Ticketer</a></div><div class="desc docblock-short">A concrete, safe ticket creation mechanism.</div></li><li><div class="item-name"><a class="struct" href="struct.Tls12CipherSuite.html" title="struct rustls::Tls12CipherSuite">Tls12CipherSuite</a></div><div class="desc docblock-short">A TLS 1.2 cipher suite supported by rustls.</div></li><li><div class="item-name"><a class="struct" href="struct.Tls13CipherSuite.html" title="struct rustls::Tls13CipherSuite">Tls13CipherSuite</a></div><div class="desc docblock-short">A TLS 1.3 cipher suite supported by rustls.</div></li><li><div class="item-name"><a class="struct" href="struct.WantsCipherSuites.html" title="struct rustls::WantsCipherSuites">WantsCipherSuites</a></div><div class="desc docblock-short">Config builder state where the caller must supply cipher suites.</div></li><li><div class="item-name"><a class="struct" href="struct.WantsKxGroups.html" title="struct rustls::WantsKxGroups">WantsKxGroups</a></div><div class="desc docblock-short">Config builder state where the caller must supply key exchange groups.</div></li><li><div class="item-name"><a class="struct" href="struct.WantsVerifier.html" title="struct rustls::WantsVerifier">WantsVerifier</a></div><div class="desc docblock-short">Config builder state where the caller must supply a verifier.</div></li><li><div class="item-name"><a class="struct" href="struct.WantsVersions.html" title="struct rustls::WantsVersions">WantsVersions</a></div><div class="desc docblock-short">Config builder state where the caller must supply TLS protocol versions.</div></li><li><div class="item-name"><a class="struct" href="struct.Writer.html" title="struct rustls::Writer">Writer</a></div><div class="desc docblock-short">A structure that implements <a href="https://doc.rust-lang.org/1.76.0/std/io/trait.Write.html" title="trait std::io::Write"><code>std::io::Write</code></a> for writing plaintext.</div></li></ul><h2 id="enums" class="section-header"><a href="#enums">Enums</a></h2><ul class="item-table"><li><div class="item-name"><a class="enum" href="enum.AlertDescription.html" title="enum rustls::AlertDescription">AlertDescription</a></div><div class="desc docblock-short">The <code>AlertDescription</code> TLS protocol enum. Values in this enum are taken
from the various RFCs covering TLS, and are listed by IANA.
The <code>Unknown</code> item is used when processing unrecognised ordinals.</div></li><li><div class="item-name"><a class="enum" href="enum.BulkAlgorithm.html" title="enum rustls::BulkAlgorithm">BulkAlgorithm</a></div><div class="desc docblock-short">Bulk symmetric encryption scheme used by a cipher suite.</div></li><li><div class="item-name"><a class="enum" href="enum.CertRevocationListError.html" title="enum rustls::CertRevocationListError">CertRevocationListError</a></div><div class="desc docblock-short">The ways in which a certificate revocation list (CRL) can be invalid.</div></li><li><div class="item-name"><a class="enum" href="enum.CertificateError.html" title="enum rustls::CertificateError">CertificateError</a></div><div class="desc docblock-short">The ways in which certificate validators can express errors.</div></li><li><div class="item-name"><a class="enum" href="enum.CipherSuite.html" title="enum rustls::CipherSuite">CipherSuite</a></div><div class="desc docblock-short">The <code>CipherSuite</code> TLS protocol enum. Values in this enum are taken
from the various RFCs covering TLS, and are listed by IANA.
The <code>Unknown</code> item is used when processing unrecognised ordinals.</div></li><li><div class="item-name"><a class="enum" href="enum.Connection.html" title="enum rustls::Connection">Connection</a></div><div class="desc docblock-short">A client or server connection.</div></li><li><div class="item-name"><a class="enum" href="enum.ContentType.html" title="enum rustls::ContentType">ContentType</a></div><div class="desc docblock-short">The <code>ContentType</code> TLS protocol enum. Values in this enum are taken
from the various RFCs covering TLS, and are listed by IANA.
The <code>Unknown</code> item is used when processing unrecognised ordinals.</div></li><li><div class="item-name"><a class="enum" href="enum.Error.html" title="enum rustls::Error">Error</a></div><div class="desc docblock-short">rustls reports protocol errors using this type.</div></li><li><div class="item-name"><a class="enum" href="enum.HandshakeType.html" title="enum rustls::HandshakeType">HandshakeType</a></div><div class="desc docblock-short">The <code>HandshakeType</code> TLS protocol enum. Values in this enum are taken
from the various RFCs covering TLS, and are listed by IANA.
The <code>Unknown</code> item is used when processing unrecognised ordinals.</div></li><li><div class="item-name"><a class="enum" href="enum.InvalidMessage.html" title="enum rustls::InvalidMessage">InvalidMessage</a></div><div class="desc docblock-short">A corrupt TLS message payload that resulted in an error.</div></li><li><div class="item-name"><a class="enum" href="enum.NamedGroup.html" title="enum rustls::NamedGroup">NamedGroup</a></div><div class="desc docblock-short">The <code>NamedGroup</code> TLS protocol enum. Values in this enum are taken
from the various RFCs covering TLS, and are listed by IANA.
The <code>Unknown</code> item is used when processing unrecognised ordinals.</div></li><li><div class="item-name"><a class="enum" href="enum.PeerIncompatible.html" title="enum rustls::PeerIncompatible">PeerIncompatible</a></div><div class="desc docblock-short">The set of cases where we failed to make a connection because a peer
doesnt support a TLS version/feature we require.</div></li><li><div class="item-name"><a class="enum" href="enum.PeerMisbehaved.html" title="enum rustls::PeerMisbehaved">PeerMisbehaved</a></div><div class="desc docblock-short">The set of cases where we failed to make a connection because we thought
the peer was misbehaving.</div></li><li><div class="item-name"><a class="enum" href="enum.ProtocolVersion.html" title="enum rustls::ProtocolVersion">ProtocolVersion</a></div><div class="desc docblock-short">The <code>ProtocolVersion</code> TLS protocol enum. Values in this enum are taken
from the various RFCs covering TLS, and are listed by IANA.
The <code>Unknown</code> item is used when processing unrecognised ordinals.</div></li><li><div class="item-name"><a class="enum" href="enum.Side.html" title="enum rustls::Side">Side</a></div><div class="desc docblock-short">Side of the connection.</div></li><li><div class="item-name"><a class="enum" href="enum.SignatureAlgorithm.html" title="enum rustls::SignatureAlgorithm">SignatureAlgorithm</a></div><div class="desc docblock-short">The <code>SignatureAlgorithm</code> TLS protocol enum. Values in this enum are taken
from the various RFCs covering TLS, and are listed by IANA.
The <code>Unknown</code> item is used when processing unrecognised ordinals.</div></li><li><div class="item-name"><a class="enum" href="enum.SignatureScheme.html" title="enum rustls::SignatureScheme">SignatureScheme</a></div><div class="desc docblock-short">The <code>SignatureScheme</code> TLS protocol enum. Values in this enum are taken
from the various RFCs covering TLS, and are listed by IANA.
The <code>Unknown</code> item is used when processing unrecognised ordinals.</div></li><li><div class="item-name"><a class="enum" href="enum.SupportedCipherSuite.html" title="enum rustls::SupportedCipherSuite">SupportedCipherSuite</a></div><div class="desc docblock-short">A cipher suite supported by rustls.</div></li></ul><h2 id="statics" class="section-header"><a href="#statics">Statics</a></h2><ul class="item-table"><li><div class="item-name"><a class="static" href="static.ALL_CIPHER_SUITES.html" title="static rustls::ALL_CIPHER_SUITES">ALL_CIPHER_SUITES</a></div><div class="desc docblock-short">A list of all the cipher suites supported by rustls.</div></li><li><div class="item-name"><a class="static" href="static.ALL_KX_GROUPS.html" title="static rustls::ALL_KX_GROUPS">ALL_KX_GROUPS</a></div><div class="desc docblock-short">A list of all the key exchange groups supported by rustls.</div></li><li><div class="item-name"><a class="static" href="static.ALL_VERSIONS.html" title="static rustls::ALL_VERSIONS">ALL_VERSIONS</a></div><div class="desc docblock-short">A list of all the protocol versions supported by rustls.</div></li><li><div class="item-name"><a class="static" href="static.DEFAULT_CIPHER_SUITES.html" title="static rustls::DEFAULT_CIPHER_SUITES">DEFAULT_CIPHER_SUITES</a></div><div class="desc docblock-short">The cipher suite configuration that an application should use by default.</div></li><li><div class="item-name"><a class="static" href="static.DEFAULT_VERSIONS.html" title="static rustls::DEFAULT_VERSIONS">DEFAULT_VERSIONS</a></div><div class="desc docblock-short">The version configuration that an application should use by default.</div></li></ul><h2 id="traits" class="section-header"><a href="#traits">Traits</a></h2><ul class="item-table"><li><div class="item-name"><a class="trait" href="trait.ConfigSide.html" title="trait rustls::ConfigSide">ConfigSide</a></div><div class="desc docblock-short">Helper trait to abstract <a href="struct.ConfigBuilder.html" title="struct rustls::ConfigBuilder"><code>ConfigBuilder</code></a> over building a <a href="client/struct.ClientConfig.html" title="struct rustls::client::ClientConfig"><code>ClientConfig</code></a> or <a href="server/struct.ServerConfig.html" title="struct rustls::server::ServerConfig"><code>ServerConfig</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.KeyLog.html" title="trait rustls::KeyLog">KeyLog</a></div><div class="desc docblock-short">This trait represents the ability to do something useful
with key material, such as logging it to a file for debugging.</div></li><li><div class="item-name"><a class="trait" href="trait.SideData.html" title="trait rustls::SideData">SideData</a></div><div class="desc docblock-short">Data specific to the peers side (client or server).</div></li></ul></section></div></main></body></html>