77 lines
2.6 KiB
HTML
Executable File
77 lines
2.6 KiB
HTML
Executable File
<?xml version="1.0" ?>
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<title>EVP_sha1</title>
|
|
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
|
|
<link rev="made" href="mailto:" />
|
|
</head>
|
|
|
|
<body>
|
|
|
|
|
|
|
|
<ul id="index">
|
|
<li><a href="#NAME">NAME</a></li>
|
|
<li><a href="#SYNOPSIS">SYNOPSIS</a></li>
|
|
<li><a href="#DESCRIPTION">DESCRIPTION</a></li>
|
|
<li><a href="#NOTES">NOTES</a></li>
|
|
<li><a href="#RETURN-VALUES">RETURN VALUES</a></li>
|
|
<li><a href="#CONFORMING-TO">CONFORMING TO</a></li>
|
|
<li><a href="#SEE-ALSO">SEE ALSO</a></li>
|
|
<li><a href="#COPYRIGHT">COPYRIGHT</a></li>
|
|
</ul>
|
|
|
|
<h1 id="NAME">NAME</h1>
|
|
|
|
<p>EVP_sha1 - SHA-1 For EVP</p>
|
|
|
|
<h1 id="SYNOPSIS">SYNOPSIS</h1>
|
|
|
|
<pre><code> #include <openssl/evp.h>
|
|
|
|
const EVP_MD *EVP_sha1(void);</code></pre>
|
|
|
|
<h1 id="DESCRIPTION">DESCRIPTION</h1>
|
|
|
|
<p>SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function standardized in NIST FIPS 180-4. The algorithm was designed by the United States National Security Agency and initially published in 1995.</p>
|
|
|
|
<dl>
|
|
|
|
<dt id="EVP_sha1">EVP_sha1()</dt>
|
|
<dd>
|
|
|
|
<p>The SHA-1 algorithm which produces a 160-bit output from a given input.</p>
|
|
|
|
</dd>
|
|
</dl>
|
|
|
|
<h1 id="NOTES">NOTES</h1>
|
|
|
|
<p>Developers should be aware of the negative performance implications of calling this function multiple times and should consider using <a href="../man3/EVP_MD_fetch.html">EVP_MD_fetch(3)</a> with <a href="../man7/EVP_MD-SHA1.html">EVP_MD-SHA1(7)</a> instead. See <a href="../man7/crypto.html">"Performance" in crypto(7)</a> for further information.</p>
|
|
|
|
<h1 id="RETURN-VALUES">RETURN VALUES</h1>
|
|
|
|
<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>
|
|
|
|
<h1 id="CONFORMING-TO">CONFORMING TO</h1>
|
|
|
|
<p>NIST FIPS 180-4.</p>
|
|
|
|
<h1 id="SEE-ALSO">SEE ALSO</h1>
|
|
|
|
<p><a href="../man7/evp.html">evp(7)</a>, <a href="../man3/EVP_DigestInit.html">EVP_DigestInit(3)</a></p>
|
|
|
|
<h1 id="COPYRIGHT">COPYRIGHT</h1>
|
|
|
|
<p>Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.</p>
|
|
|
|
<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>
|
|
|
|
|
|
</body>
|
|
|
|
</html>
|
|
|
|
|