1EC_KEY_GET_ENC_FLAGS(3)             OpenSSL            EC_KEY_GET_ENC_FLAGS(3)
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NAME

6       EC_KEY_get_enc_flags, EC_KEY_set_enc_flags - Get and set flags for
7       encoding EC_KEY structures
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SYNOPSIS

10        #include <openssl/ec.h>
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12        unsigned int EC_KEY_get_enc_flags(const EC_KEY *key);
13        void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags);
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DESCRIPTION

16       The format of the external representation of the public key written by
17       i2d_ECPrivateKey() (such as whether it is stored in a compressed form
18       or not) is described by the point_conversion_form. See EC_GROUP_copy(3)
19       for a description of point_conversion_form.
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21       When reading a private key encoded without an associated public key
22       (e.g. if EC_PKEY_NO_PUBKEY has been used - see below), then
23       d2i_ECPrivateKey() generates the missing public key automatically.
24       Private keys encoded without parameters (e.g. if EC_PKEY_NO_PARAMETERS
25       has been used - see below) cannot be loaded using d2i_ECPrivateKey().
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27       The functions EC_KEY_get_enc_flags() and EC_KEY_set_enc_flags() get and
28       set the value of the encoding flags for the key. There are two encoding
29       flags currently defined - EC_PKEY_NO_PARAMETERS and EC_PKEY_NO_PUBKEY.
30       These flags define the behaviour of how the  key is converted into ASN1
31       in a call to i2d_ECPrivateKey(). If EC_PKEY_NO_PARAMETERS is set then
32       the public parameters for the curve are not encoded along with the
33       private key. If EC_PKEY_NO_PUBKEY is set then the public key is not
34       encoded along with the private key.
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RETURN VALUES

37       EC_KEY_get_enc_flags() returns the value of the current encoding flags
38       for the EC_KEY.
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SEE ALSO

41       crypto(7), EC_GROUP_new(3), EC_GROUP_copy(3), EC_POINT_new(3),
42       EC_POINT_add(3), EC_GFp_simple_method(3), d2i_ECPKParameters(3),
43       d2i_ECPrivateKey(3)
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46       Copyright 2015-2017 The OpenSSL Project Authors. All Rights Reserved.
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48       Licensed under the OpenSSL license (the "License").  You may not use
49       this file except in compliance with the License.  You can obtain a copy
50       in the file LICENSE in the source distribution or at
51       <https://www.openssl.org/source/license.html>.
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551.1.1i                            2021-07-22           EC_KEY_GET_ENC_FLAGS(3)
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