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<title>EC_KEY_get_enc_flags</title>
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<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><a name="name">NAME</a></h1>
<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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</p>
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<h1><a name="synopsis">SYNOPSIS</a></h1>
<pre>
#include <openssl/ec.h></pre>
<pre>
unsigned int EC_KEY_get_enc_flags(const EC_KEY *key);
void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags);</pre>
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<h1><a name="description">DESCRIPTION</a></h1>
<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 <em>EC_GROUP_copy(3)</em>
for a description of point_conversion_form.</p>
<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>
<p>The functions <code>EC_KEY_get_enc_flags()</code> and <code>EC_KEY_set_enc_flags()</code> get and set the
value of the encoding flags for the <strong>key</strong>. There are two encoding flags
currently defined - EC_PKEY_NO_PARAMETERS and EC_PKEY_NO_PUBKEY. These flags
define the behaviour of how the <strong>key</strong> 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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</p>
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<h1><a name="return_values">RETURN VALUES</a></h1>
<p><code>EC_KEY_get_enc_flags()</code> returns the value of the current encoding flags for the
EC_KEY.</p>
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<h1><a name="see_also">SEE ALSO</a></h1>
<p><em>crypto(7)</em>, <em>EC_GROUP_new(3)</em>,
<em>EC_GROUP_copy(3)</em>, <em>EC_POINT_new(3)</em>,
<em>EC_POINT_add(3)</em>,
<em>EC_GFp_simple_method(3)</em>,
<em>d2i_ECPKParameters(3)</em>,
<em>d2i_ECPrivateKey(3)</em></p>
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</p>
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<h1><a name="copyright">COPYRIGHT</a></h1>
<p>Copyright 2015-2017 The OpenSSL Project Authors. All Rights Reserved.</p>
<p>Licensed under the OpenSSL license (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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