106 lines
3.0 KiB
HTML
Executable File
106 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_blake2b512</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:root@localhost" />
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</head>
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<body style="background-color: white">
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<!-- INDEX BEGIN -->
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<div name="index">
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<p><a name="__index__"></a></p>
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<ul>
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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="#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="#notes">NOTES</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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<hr name="index" />
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</div>
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<!-- INDEX END -->
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<p>
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</p>
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<hr />
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<h1><a name="name">NAME</a></h1>
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<p>EVP_blake2b512,
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EVP_blake2s256
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- BLAKE2 For EVP</p>
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<p>
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</p>
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<hr />
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<h1><a name="synopsis">SYNOPSIS</a></h1>
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<pre>
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#include <openssl/evp.h></pre>
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<pre>
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const EVP_MD *EVP_blake2b512(void);
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const EVP_MD *EVP_blake2s256(void);</pre>
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<p>
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</p>
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<hr />
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<h1><a name="description">DESCRIPTION</a></h1>
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<p>BLAKE2 is an improved version of BLAKE, which was submitted to the NIST SHA-3
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algorithm competition. The BLAKE2s and BLAKE2b algorithms are described in
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<a href="http://www.ietf.org/rfc/rfc7693.txt" class="rfc">RFC 7693</a>.</p>
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<dl>
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<dt><strong><a name="evp_blake2s256" class="item">EVP_blake2s256()</a></strong></dt>
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<dd>
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<p>The BLAKE2s algorithm that produces a 256-bit output from a given input.</p>
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</dd>
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<dt><strong><a name="evp_blake2b512" class="item">EVP_blake2b512()</a></strong></dt>
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<dd>
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<p>The BLAKE2b algorithm that produces a 512-bit output from a given input.</p>
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</dd>
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</dl>
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<p>
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</p>
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<hr />
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<h1><a name="return_values">RETURN VALUES</a></h1>
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<p>These functions return a <strong>EVP_MD</strong> structure that contains the
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implementation of the symmetric cipher. See <em>EVP_MD_meth_new(3)</em> for
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details of the <strong>EVP_MD</strong> structure.</p>
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<p>
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</p>
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<hr />
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<h1><a name="conforming_to">CONFORMING TO</a></h1>
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<p>RFC 7693.</p>
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<p>
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</p>
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<hr />
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<h1><a name="notes">NOTES</a></h1>
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<p>While the BLAKE2b and BLAKE2s algorithms supports a variable length digest,
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this implementation outputs a digest of a fixed length (the maximum length
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supported), which is 512-bits for BLAKE2b and 256-bits for BLAKE2s.</p>
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<p>
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</p>
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<hr />
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<h1><a name="see_also">SEE ALSO</a></h1>
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<p><em>evp(7)</em>,
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<em>EVP_DigestInit(3)</em></p>
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<p>
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</p>
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<hr />
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<h1><a name="copyright">COPYRIGHT</a></h1>
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<p>Copyright 2017 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
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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<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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