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<title>Ocamlnet 4 Reference Manual : Netchannels_crypto</title>
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<h1>Module <a href="type_Netchannels_crypto.html">Netchannels_crypto</a></h1>
<pre><span id="MODULENetchannels_crypto"><span class="keyword">module</span> Netchannels_crypto</span>: <code class="code">sig</code> <a href="Netchannels_crypto.html">..</a> <code class="code">end</code></pre><div class="info module top">
<div class="info-desc">
<p>Crypto extensions for <a href="Netchannels.html"><code class="code">Netchannels</code></a></p>
</div>
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<hr width="100%">
<h2 id="tls">TLS</h2>
<pre><span id="TYPEtls_channel"><span class="keyword">class type</span> <a href="Netchannels_crypto.tls_channel-c.html">tls_channel</a></span> = <code class="code">object</code> <a href="Netchannels_crypto.tls_channel-c.html">..</a> <code class="code">end</code></pre><div class="info">
<p>A TLS channel is a layer on top of a bidirectional channel that adds the TLS
protocol.</p>
</div>
<pre><span id="TYPEtls_layer"><span class="keyword">class</span> <a href="Netchannels_crypto.tls_layer-c.html">tls_layer</a></span> : <code class="type">?start_pos_in:int -> ?start_pos_out:int -> ?resume:string -> role:[ `Client | `Server ] -> rd:<a href="Netchannels.raw_in_channel-c.html">Netchannels.raw_in_channel</a> -> wr:<a href="Netchannels.raw_out_channel-c.html">Netchannels.raw_out_channel</a> -> peer_name:string option -> <a href="Netsys_crypto_types.html#TYPEtls_config">Netsys_crypto_types.tls_config</a> -> </code><code class="type"><a href="Netchannels_crypto.tls_channel-c.html">tls_channel</a></code></pre><div class="info">
<p>Adds TLS security to an already established connection, here made
available as separate channels for input and output.</p>
</div>
<pre><span id="TYPEtls_endpoint"><span class="keyword">class</span> <a href="Netchannels_crypto.tls_endpoint-c.html">tls_endpoint</a></span> : <code class="type">?start_pos_in:int -> ?start_pos_out:int -> ?resume:string -> role:[ `Client | `Server ] -> peer_name:string option -> Unix.file_descr -> <a href="Netsys_crypto_types.html#TYPEtls_config">Netsys_crypto_types.tls_config</a> -> </code><code class="type"><a href="Netchannels_crypto.tls_channel-c.html">tls_channel</a></code></pre><div class="info">
<p>This class is slightly more efficient than <code class="code">tls_layer</code>, and to preferred
if you have direct access to the file descriptors.</p>
</div>
<h2 id="symmetric">Symmetric Cryptography</h2>
<pre><span id="TYPEcrypto_out_filter"><span class="keyword">class type</span> <a href="Netchannels_crypto.crypto_out_filter-c.html">crypto_out_filter</a></span> = <code class="code">object</code> <a href="Netchannels_crypto.crypto_out_filter-c.html">..</a> <code class="code">end</code></pre><div class="info">
<p>Encrypt or decrypt data while writing to a channel</p>
</div>
<pre><span id="TYPEcrypto_in_filter"><span class="keyword">class type</span> <a href="Netchannels_crypto.crypto_in_filter-c.html">crypto_in_filter</a></span> = <code class="code">object</code> <a href="Netchannels_crypto.crypto_in_filter-c.html">..</a> <code class="code">end</code></pre><div class="info">
<p>Encrypt or decrypt data while reading from a channel</p>
</div>
<pre><span id="VALencrypt_out"><span class="keyword">val</span> encrypt_out</span> : <code class="type"><a href="Netsys_ciphers.cipher_ctx-c.html">Netsys_ciphers.cipher_ctx</a> -><br> <a href="Netchannels.out_obj_channel-c.html">Netchannels.out_obj_channel</a> -> <a href="Netchannels_crypto.crypto_out_filter-c.html">crypto_out_filter</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">let ch2 = encrypt_out ctx ch1</code>: Writing to <code class="code">ch2</code> encrypts
the data and writes the ciphertext to <code class="code">ch1</code>. Closing <code class="code">ch2</code> will flush
data and close <code class="code">ch1</code>.</p>
</div>
</div>
<pre><span id="VALencrypt_in"><span class="keyword">val</span> encrypt_in</span> : <code class="type"><a href="Netsys_ciphers.cipher_ctx-c.html">Netsys_ciphers.cipher_ctx</a> -><br> <a href="Netchannels.in_obj_channel-c.html">Netchannels.in_obj_channel</a> -> <a href="Netchannels_crypto.crypto_in_filter-c.html">crypto_in_filter</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">let ch2 = encrypt_in ctx ch1</code>: Reading from <code class="code">ch2</code> encrypts
the data from <code class="code">ch1</code>. Closing <code class="code">ch2</code> will close <code class="code">ch1</code>.</p>
</div>
</div>
<pre><span id="VALdecrypt_out"><span class="keyword">val</span> decrypt_out</span> : <code class="type"><a href="Netsys_ciphers.cipher_ctx-c.html">Netsys_ciphers.cipher_ctx</a> -><br> <a href="Netchannels.out_obj_channel-c.html">Netchannels.out_obj_channel</a> -> <a href="Netchannels_crypto.crypto_out_filter-c.html">crypto_out_filter</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">let ch2 = decrypt_out ctx ch1</code>: Writing to <code class="code">ch2</code> decrypts
the data and writes the plaintext to <code class="code">ch1</code>. Closing <code class="code">ch2</code> will flush
data and close <code class="code">ch1</code>.</p>
</div>
</div>
<pre><span id="VALdecrypt_in"><span class="keyword">val</span> decrypt_in</span> : <code class="type"><a href="Netsys_ciphers.cipher_ctx-c.html">Netsys_ciphers.cipher_ctx</a> -><br> <a href="Netchannels.in_obj_channel-c.html">Netchannels.in_obj_channel</a> -> <a href="Netchannels_crypto.crypto_in_filter-c.html">crypto_in_filter</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">let ch2 = decrypt_in ctx ch1</code>: Reading from <code class="code">ch2</code> decrypts
the data from <code class="code">ch1</code>. Closing <code class="code">ch2</code> will close <code class="code">ch1</code>.</p>
</div>
</div>
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