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

       Copyright 2015-2017 The OpenSSL Project Authors. All Rights Reserved.

       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
       <https://www.openssl.org/source/license.html>.

3.5.0                                              2025-06-04                         EC_KEY_GET_ENC_FLAGS(3SSL)

       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
       EC_GROUP_copy(3) for a description of point_conversion_form.

       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().

       The functions EC_KEY_get_enc_flags() and EC_KEY_set_enc_flags() get and set the value of the encoding
       flags for the key. There are two encoding flags currently defined - EC_PKEY_NO_PARAMETERS and
       EC_PKEY_NO_PUBKEY.  These flags define the behaviour of how the  key 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.

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

EC_KEY_get_enc_flags() returns the value of the current encoding flags for the EC_KEY.

crypto(7), EC_GROUP_new(3), EC_GROUP_copy(3), EC_POINT_new(3), EC_POINT_add(3), EC_GFp_simple_method(3),
       d2i_ECPKParameters(3), d2i_ECPrivateKey(3)

        #include <openssl/ec.h>

        unsigned int EC_KEY_get_enc_flags(const EC_KEY *key);
        void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags);