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<title>EVP_PKEY2PKCS8</title>
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<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="#RETURN-VALUES">RETURN VALUES</a></li>
<li><a href="#SEE-ALSO">SEE ALSO</a></li>
<li><a href="#COPYRIGHT">COPYRIGHT</a></li>
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<h1 id="NAME">NAME</h1>
<p>EVP_PKEY2PKCS8, EVP_PKCS82PKEY_ex, EVP_PKCS82PKEY - Convert a private key to/from PKCS8</p>
<h1 id="SYNOPSIS">SYNOPSIS</h1>
<pre><code> #include <openssl/x509.h>
PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(const EVP_PKEY *pkey);
EVP_PKEY *EVP_PKCS82PKEY(const PKCS8_PRIV_KEY_INFO *p8);
EVP_PKEY *EVP_PKCS82PKEY_ex(const PKCS8_PRIV_KEY_INFO *p8, OSSL_LIB_CTX *libctx,
const char *propq);</code></pre>
<h1 id="DESCRIPTION">DESCRIPTION</h1>
<p>EVP_PKEY2PKCS8() converts a private key <i>pkey</i> into a returned PKCS8 object.</p>
<p>EVP_PKCS82PKEY_ex() converts a PKCS8 object <i>p8</i> into a returned private key. It uses <i>libctx</i> and <i>propq</i> when fetching algorithms.</p>
<p>EVP_PKCS82PKEY() is similiar to EVP_PKCS82PKEY_ex() but uses default values of NULL for the <i>libctx</i> and <i>propq</i>.</p>
<h1 id="RETURN-VALUES">RETURN VALUES</h1>
<p>EVP_PKEY2PKCS8() returns a PKCS8 object on success. EVP_PKCS82PKEY() and EVP_PKCS82PKEY_ex() return a private key on success.</p>
<p>All functions return NULL if the operation fails.</p>
<h1 id="SEE-ALSO">SEE ALSO</h1>
<p><a href="../man3/PKCS8_pkey_add1_attr.html">PKCS8_pkey_add1_attr(3)</a>,</p>
<h1 id="COPYRIGHT">COPYRIGHT</h1>
<p>Copyright 2020 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>
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