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<?xml version="1.0" encoding="ascii"?>
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        <a href="Crypto-module.html">Package&nbsp;Crypto</a> ::
        Package&nbsp;Hash
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<!-- ==================== PACKAGE DESCRIPTION ==================== -->
<h1 class="epydoc">Package Hash</h1><p class="nomargin-top"></p>
<p>Hashing algorithms</p>
<p>Hash functions take arbitrary strings as input, and produce an output
of fixed size that is dependent on the input; it should never be
possible to derive the input data given only the hash function's
output.  Hash functions can be used simply as a checksum, or, in
association with a public-key algorithm, can be used to implement
digital signatures.</p>
<p>The hashing modules here all support the interface described in PEP
247, &quot;API for Cryptographic Hash Functions&quot;.</p>
<p>Submodules:</p>
<dl class="rst-docutils">
<dt>Crypto.Hash.HMAC</dt>
<dd>RFC 2104. Keyed-Hashing for Message Authentication.</dd>
<dt>Crypto.Hash.MD2</dt>
<dd>RFC1319. Rivest's Message Digest algorithm, with a 128 bit digest. This algorithm is both slow and insecure.</dd>
<dt>Crypto.Hash.MD4</dt>
<dd>RFC1320. Rivest's Message Digest algorithm, with a 128 bit digest. This algorithm is insecure.</dd>
<dt>Crypto.Hash.MD5</dt>
<dd>RFC1321. Rivest's Message Digest algorithm, with a 128 bit digest. This algorithm is insecure.</dd>
<dt>Crypto.Hash.RIPEMD</dt>
<dd>RACE Integrity Primitives Evaluation Message Digest algorithm, with a 160 bit digest.</dd>
<dt>Crypto.Hash.SHA</dt>
<dd>Secure Hash Algorithm 1 (SHA-1), with a 160 bit digest. Published in FIPS PUB 180-1/2/3.</dd>
<dt>Crypto.Hash.SHA224</dt>
<dd>Secure Hash Algorithm 2 (SHA-2 family), with a 224 bit digest. Published in FIPS PUB 180-2/3.</dd>
<dt>Crypto.Hash.SHA256</dt>
<dd>Secure Hash Algorithm 2 (SHA-2 family), with a 256 bit digest. Published in FIPS PUB 180-2/3.</dd>
<dt>Crypto.Hash.SHA384</dt>
<dd>Secure Hash Algorithm 2 (SHA-2 family), with a 384 bit digest. Published in FIPS PUB 180-2/3.</dd>
<dt>Crypto.Hash.SHA512</dt>
<dd>Secure Hash Algorithm 2 (SHA-2 family), with a 512 bit digest. Published in FIPS PUB 180-2/3.</dd>
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    <li> <strong class="uidlink"><a href="Crypto.Hash.HMAC-module.html">Crypto.Hash.HMAC</a></strong>: <em class="summary">HMAC (Keyed-Hashing for Message Authentication) Python module.</em>    </li>
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