62 lines
3.3 KiB
HTML
62 lines
3.3 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>EC_KEY_get_enc_flags</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>EC_KEY_get_enc_flags, EC_KEY_set_enc_flags - Get and set flags for encoding EC_KEY structures</p>
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<h1 id="SYNOPSIS">SYNOPSIS</h1>
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<pre><code> #include <openssl/ec.h>
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unsigned int EC_KEY_get_enc_flags(const EC_KEY *key);
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void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags);</code></pre>
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<h1 id="DESCRIPTION">DESCRIPTION</h1>
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<p>The format of the external representation of the public key written by i2d_ECPrivateKey() (such as whether it is stored in a compressed form or not) is described by the point_conversion_form. See <a href="../man3/EC_GROUP_copy.html">EC_GROUP_copy(3)</a> for a description of point_conversion_form.</p>
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<p>When reading a private key encoded without an associated public key (e.g. if EC_PKEY_NO_PUBKEY has been used - see below), then d2i_ECPrivateKey() generates the missing public key automatically. Private keys encoded without parameters (e.g. if EC_PKEY_NO_PARAMETERS has been used - see below) cannot be loaded using d2i_ECPrivateKey().</p>
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<p>The functions EC_KEY_get_enc_flags() and EC_KEY_set_enc_flags() get and set the value of the encoding flags for the <b>key</b>. There are two encoding flags currently defined - EC_PKEY_NO_PARAMETERS and EC_PKEY_NO_PUBKEY. These flags define the behaviour of how the <b>key</b> is converted into ASN1 in a call to i2d_ECPrivateKey(). If EC_PKEY_NO_PARAMETERS is set then the public parameters for the curve are not encoded along with the private key. If EC_PKEY_NO_PUBKEY is set then the public key is not encoded along with the private key.</p>
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<h1 id="RETURN-VALUES">RETURN VALUES</h1>
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<p>EC_KEY_get_enc_flags() returns the value of the current encoding flags for the EC_KEY.</p>
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<h1 id="SEE-ALSO">SEE ALSO</h1>
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<p><a href="../man7/crypto.html">crypto(7)</a>, <a href="../man3/EC_GROUP_new.html">EC_GROUP_new(3)</a>, <a href="../man3/EC_GROUP_copy.html">EC_GROUP_copy(3)</a>, <a href="../man3/EC_POINT_new.html">EC_POINT_new(3)</a>, <a href="../man3/EC_POINT_add.html">EC_POINT_add(3)</a>, <a href="../man3/EC_GFp_simple_method.html">EC_GFp_simple_method(3)</a>, <a href="../man3/d2i_ECPKParameters.html">d2i_ECPKParameters(3)</a>, <a href="../man3/d2i_ECPrivateKey.html">d2i_ECPrivateKey(3)</a></p>
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<h1 id="COPYRIGHT">COPYRIGHT</h1>
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<p>Copyright 2015-2017 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 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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