| =pod |
| |
| =head1 NAME |
| |
| EC_KEY_get_enc_flags, EC_KEY_set_enc_flags |
| - Get and set flags for encoding EC_KEY structures |
| |
| =head1 SYNOPSIS |
| |
| #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); |
| |
| =head1 DESCRIPTION |
| |
| 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 L<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 B<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 B<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. |
| |
| =head1 RETURN VALUES |
| |
| EC_KEY_get_enc_flags() returns the value of the current encoding flags for the |
| EC_KEY. |
| |
| =head1 SEE ALSO |
| |
| L<crypto(7)>, L<EC_GROUP_new(3)>, |
| L<EC_GROUP_copy(3)>, L<EC_POINT_new(3)>, |
| L<EC_POINT_add(3)>, |
| L<EC_GFp_simple_method(3)>, |
| L<d2i_ECPKParameters(3)>, |
| L<d2i_ECPrivateKey(3)> |
| |
| =head1 COPYRIGHT |
| |
| Copyright 2015-2017 The OpenSSL Project Authors. All Rights Reserved. |
| |
| 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 |
| L<https://www.openssl.org/source/license.html>. |
| |
| =cut |
