88 lines
3.0 KiB
HTML
Executable File
88 lines
3.0 KiB
HTML
Executable File
<?xml version="1.0" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>EVP_md5</title>
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<meta http-equiv="content-type" content="text/html; charset=utf-8" />
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<link rev="made" href="mailto:" />
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</head>
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<body>
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<ul id="index">
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<li><a href="#NAME">NAME</a></li>
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<li><a href="#SYNOPSIS">SYNOPSIS</a></li>
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<li><a href="#DESCRIPTION">DESCRIPTION</a></li>
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<li><a href="#NOTES">NOTES</a></li>
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<li><a href="#RETURN-VALUES">RETURN VALUES</a></li>
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<li><a href="#CONFORMING-TO">CONFORMING TO</a></li>
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<li><a href="#SEE-ALSO">SEE ALSO</a></li>
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<li><a href="#COPYRIGHT">COPYRIGHT</a></li>
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</ul>
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<h1 id="NAME">NAME</h1>
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<p>EVP_md5, EVP_md5_sha1 - MD5 For EVP</p>
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<h1 id="SYNOPSIS">SYNOPSIS</h1>
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<pre><code> #include <openssl/evp.h>
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const EVP_MD *EVP_md5(void);
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const EVP_MD *EVP_md5_sha1(void);</code></pre>
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<h1 id="DESCRIPTION">DESCRIPTION</h1>
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<p>MD5 is a cryptographic hash function standardized in RFC 1321 and designed by Ronald Rivest.</p>
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<p>The CMU Software Engineering Institute considers MD5 unsuitable for further use since its security has been severely compromised.</p>
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<dl>
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<dt id="EVP_md5">EVP_md5()</dt>
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<dd>
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<p>The MD5 algorithm which produces a 128-bit output from a given input.</p>
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</dd>
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<dt id="EVP_md5_sha1">EVP_md5_sha1()</dt>
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<dd>
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<p>A hash algorithm of SSL v3 that combines MD5 with SHA-1 as described in RFC 6101.</p>
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<p>WARNING: this algorithm is not intended for non-SSL usage.</p>
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</dd>
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</dl>
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<h1 id="NOTES">NOTES</h1>
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<p>Developers should be aware of the negative performance implications of calling these functions multiple times and should consider using <a href="../man3/EVP_MD_fetch.html">EVP_MD_fetch(3)</a> with <a href="../man7/EVP_MD-MD5.html">EVP_MD-MD5(7)</a> or <a href="../man7/EVP_MD-MD5-SHA1.html">EVP_MD-MD5-SHA1(7)</a> instead. See <a href="../man7/crypto.html">"Performance" in crypto(7)</a> for further information.</p>
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<h1 id="RETURN-VALUES">RETURN VALUES</h1>
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<p>These functions return a <b>EVP_MD</b> structure that contains the implementation of the message digest. See <a href="../man3/EVP_MD_meth_new.html">EVP_MD_meth_new(3)</a> for details of the <b>EVP_MD</b> structure.</p>
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<h1 id="CONFORMING-TO">CONFORMING TO</h1>
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<p>IETF RFC 1321.</p>
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<h1 id="SEE-ALSO">SEE ALSO</h1>
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<p><a href="../man7/evp.html">evp(7)</a>, <a href="../man3/EVP_DigestInit.html">EVP_DigestInit(3)</a></p>
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<h1 id="COPYRIGHT">COPYRIGHT</h1>
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<p>Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.</p>
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<p>Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p>
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</body>
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</html>
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