78 lines
2.9 KiB
HTML
78 lines
2.9 KiB
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<?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_seed_cbc</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="#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_seed_cbc, EVP_seed_cfb, EVP_seed_cfb128, EVP_seed_ecb, EVP_seed_ofb - EVP SEED cipher</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_CIPHER *EVP_seed_cbc(void);
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const EVP_CIPHER *EVP_seed_cfb(void);
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const EVP_CIPHER *EVP_seed_cfb128(void);
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const EVP_CIPHER *EVP_seed_ecb(void);
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const EVP_CIPHER *EVP_seed_ofb(void);</code></pre>
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<h1 id="DESCRIPTION">DESCRIPTION</h1>
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<p>The SEED encryption algorithm for EVP.</p>
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<p>All modes below use a key length of 128 bits and acts on blocks of 128-bits.</p>
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<dl>
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<dt id="EVP_seed_cbc-EVP_seed_cfb-EVP_seed_cfb128-EVP_seed_ecb-EVP_seed_ofb">EVP_seed_cbc(), EVP_seed_cfb(), EVP_seed_cfb128(), EVP_seed_ecb(), EVP_seed_ofb()</dt>
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<dd>
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<p>The SEED encryption algorithm in CBC, CFB, ECB and OFB modes respectively.</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_CIPHER_fetch.html">EVP_CIPHER_fetch(3)</a> with <a href="../man7/EVP_CIPHER-SEED.html">EVP_CIPHER-SEED(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 an <b>EVP_CIPHER</b> structure that contains the implementation of the symmetric cipher. See <a href="../man3/EVP_CIPHER_meth_new.html">EVP_CIPHER_meth_new(3)</a> for details of the <b>EVP_CIPHER</b> structure.</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_EncryptInit.html">EVP_EncryptInit(3)</a>, <a href="../man3/EVP_CIPHER_meth_new.html">EVP_CIPHER_meth_new(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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