107 lines
3.8 KiB
HTML
Executable File
107 lines
3.8 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_fromdata</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="#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="#history">HISTORY</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_PKEY_param_fromdata_init, EVP_PKEY_key_fromdata_init, EVP_PKEY_fromdata,
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EVP_PKEY_param_fromdata_settable, EVP_PKEY_key_fromdata_settable
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- functions to create key parameters and keys from user data</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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int EVP_PKEY_param_fromdata_init(EVP_PKEY_CTX *ctx);
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int EVP_PKEY_key_fromdata_init(EVP_PKEY_CTX *ctx);
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int EVP_PKEY_fromdata(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey, OSSL_PARAM params[]);
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const OSSL_PARAM *EVP_PKEY_param_fromdata_settable(EVP_PKEY_CTX *ctx);
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const OSSL_PARAM *EVP_PKEY_key_fromdata_settable(EVP_PKEY_CTX *ctx);</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><code>EVP_PKEY_param_fromdata_init()</code> initializes a public key algorithm context
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for creating key parameters from user data.</p>
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<p><code>EVP_PKEY_key_fromdata_init()</code> initializes a public key algorithm context for
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creating a key from user data.</p>
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<p><code>EVP_PKEY_fromdata()</code> creates key parameters or a key, given data from
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<em>params</em> and a context that's been initialized with
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<code>EVP_PKEY_param_fromdata_init()</code> or <code>EVP_PKEY_key_fromdata_init()</code>. The result is
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written to <em>*ppkey</em>. The parameters that can be used for various types of key
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are as described in the "Built-in RSA Import/Export Types" section on the
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<em>provider-keymgmt(7)</em> page.</p>
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<p><code>EVP_PKEY_param_fromdata_settable()</code> and <code>EVP_PKEY_key_fromdata_settable()</code>
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get a constant <strong>OSSL_PARAM</strong> array that describes the settable parameters
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that can be used with <code>EVP_PKEY_fromdata()</code>.
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See <em>OSSL_PARAM(3)</em> for the use of <strong>OSSL_PARAM</strong> as parameter descriptor.</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>These functions only work with key management methods coming from a
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provider.</p>
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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><code>EVP_PKEY_key_fromdata_init()</code>, <code>EVP_PKEY_param_fromdata_init()</code> and
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<code>EVP_PKEY_fromdata()</code> return 1 for success and 0 or a negative value for
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failure. In particular a return value of -2 indicates the operation is
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not supported by the public key algorithm.</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_PKEY_CTX_new(3)</em>, <em>provider(7)</em></p>
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<p>
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</p>
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<hr />
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<h1><a name="history">HISTORY</a></h1>
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<p>These functions were added in OpenSSL 3.0.</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 2019 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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