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        <a href="Crypto.Hash-module.html">Package&nbsp;Hash</a> ::
        Module&nbsp;SHA512
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<!-- ==================== MODULE DESCRIPTION ==================== -->
<h1 class="epydoc">Module SHA512</h1><p class="nomargin-top"></p>
<p>SHA-512 cryptographic hash algorithm.</p>
<p>SHA-512 belongs to the <a class="rst-reference external" href="http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf" target="_top">SHA-2</a> family of cryptographic hashes.
It produces the 512 bit digest of a message.</p>
<blockquote>
<pre class="py-doctest">
<span class="py-prompt">&gt;&gt;&gt; </span><span class="py-keyword">from</span> Crypto.Hash <span class="py-keyword">import</span> SHA512
<span class="py-prompt">&gt;&gt;&gt;</span>
<span class="py-prompt">&gt;&gt;&gt; </span>h = SHA512.new()
<span class="py-prompt">&gt;&gt;&gt; </span>h.update(b<span class="py-string">'Hello'</span>)
<span class="py-prompt">&gt;&gt;&gt; </span><span class="py-keyword">print</span> h.hexdigest()</pre>
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<p><em>SHA</em> stands for Secure Hash Algorithm.</p>

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      <span class="summary-type">&nbsp;</span>
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        <a href="Crypto.Hash.SHA512.SHA512Hash-class.html" class="summary-name">SHA512Hash</a><br />
      Class that implements a SHA-512 hash
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      Return a fresh instance of the hash object.</td>
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        <a name="digest_size"></a><span class="summary-name">digest_size</span> = <code title="64">64</code><br />
      The size of the resulting hash in bytes.
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  Return a fresh instance of the hash object.
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    <dt>Parameters:</dt>
    <dd><ul class="nomargin-top">
        <li><strong class="pname"><code>data</code></strong> (byte string) - The very first chunk of the message to hash.
It is equivalent to an early call to <a href="Crypto.Hash.hashalgo.HashAlgo-class.html#update" class="link">SHA512Hash.update()</a>.
Optional.</li>
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    <dt>Returns:</dt>
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