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<h2 class="chapter">5 Symmetric cryptography</h2>
<p>The cipher functions are used for symmetrical cryptography,
i.e. cryptography using a shared key. The programming model follows
an open/process/close paradigm and is in that similar to other
building blocks provided by Libgcrypt.
<ul class="menu">
<li><a accesskey="1" href="Available-ciphers.html#Available-ciphers">Available ciphers</a>: List of ciphers supported by the library.
<li><a accesskey="2" href="Cipher-modules.html#Cipher-modules">Cipher modules</a>: How to work with cipher modules.
<li><a accesskey="3" href="Available-cipher-modes.html#Available-cipher-modes">Available cipher modes</a>: List of cipher modes supported by the library.
<li><a accesskey="4" href="Working-with-cipher-handles.html#Working-with-cipher-handles">Working with cipher handles</a>: How to perform operations related to cipher handles.
<li><a accesskey="5" href="General-cipher-functions.html#General-cipher-functions">General cipher functions</a>: General cipher functions independent of cipher handles.
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