67 lines
4.0 KiB
HTML
Executable File
67 lines
4.0 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_PKEY_set_type</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="#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_PKEY_set_type, EVP_PKEY_set_type_str, EVP_PKEY_set_type_by_keymgmt - functions to change the EVP_PKEY type</p>
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<h1 id="SYNOPSIS">SYNOPSIS</h1>
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<pre><code> #include <openssl/evp.h>
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int EVP_PKEY_set_type(EVP_PKEY *pkey, int type);
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int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len);
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int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt);</code></pre>
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<h1 id="DESCRIPTION">DESCRIPTION</h1>
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<p>All the functions described here behave the same in so far that they clear all the previous key data and methods from <i>pkey</i>, and reset it to be of the type of key given by the different arguments. If <i>pkey</i> is NULL, these functions will still return the same return values as if it wasn't.</p>
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<p>EVP_PKEY_set_type() initialises <i>pkey</i> to contain an internal legacy key. When doing this, it finds a <a href="../man3/EVP_PKEY_ASN1_METHOD.html">EVP_PKEY_ASN1_METHOD(3)</a> corresponding to <i>type</i>, and associates <i>pkey</i> with the findings. It is an error if no <a href="../man3/EVP_PKEY_ASN1_METHOD.html">EVP_PKEY_ASN1_METHOD(3)</a> could be found for <i>type</i>.</p>
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<p>EVP_PKEY_set_type_str() initialises <i>pkey</i> to contain an internal legacy key. When doing this, it finds a <a href="../man3/EVP_PKEY_ASN1_METHOD.html">EVP_PKEY_ASN1_METHOD(3)</a> corresponding to <i>str</i> that has then length <i>len</i>, and associates <i>pkey</i> with the findings. It is an error if no <a href="../man3/EVP_PKEY_ASN1_METHOD.html">EVP_PKEY_ASN1_METHOD(3)</a> could be found for <i>type</i>.</p>
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<p>For both EVP_PKEY_set_type() and EVP_PKEY_set_type_str(), <i>pkey</i> gets a numeric type, which can be retrieved with <a href="../man3/EVP_PKEY_get_id.html">EVP_PKEY_get_id(3)</a>. This numeric type is taken from the <a href="../man3/EVP_PKEY_ASN1_METHOD.html">EVP_PKEY_ASN1_METHOD(3)</a> that was found, and is equal to or closely related to <i>type</i> in the case of EVP_PKEY_set_type(), or related to <i>str</i> in the case of EVP_PKEY_set_type_str().</p>
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<p>EVP_PKEY_set_type_by_keymgmt() initialises <i>pkey</i> to contain an internal provider side key. When doing this, it associates <i>pkey</i> with <i>keymgmt</i>. For keys initialised like this, the numeric type retrieved with <a href="../man3/EVP_PKEY_get_id.html">EVP_PKEY_get_id(3)</a> will always be <b>EVP_PKEY_NONE</b>.</p>
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<h1 id="RETURN-VALUES">RETURN VALUES</h1>
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<p>All functions described here return 1 if successful, or 0 on error.</p>
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<h1 id="SEE-ALSO">SEE ALSO</h1>
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<p><a href="../man3/EVP_PKEY_assign.html">EVP_PKEY_assign(3)</a>, <a href="../man3/EVP_PKEY_get_id.html">EVP_PKEY_get_id(3)</a>, <a href="../man3/EVP_PKEY_get0_RSA.html">EVP_PKEY_get0_RSA(3)</a>, <a href="../man3/EVP_PKEY_copy_parameters.html">EVP_PKEY_copy_parameters(3)</a>, <a href="../man3/EVP_PKEY_ASN1_METHOD.html">EVP_PKEY_ASN1_METHOD(3)</a>, <a href="../man3/EVP_KEYMGMT.html">EVP_KEYMGMT(3)</a></p>
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<h1 id="COPYRIGHT">COPYRIGHT</h1>
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<p>Copyright 2020-2021 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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