mirror of https://github.com/openssl/openssl
60 lines
2.0 KiB
Plaintext
60 lines
2.0 KiB
Plaintext
=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 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
|
|
L<https://www.openssl.org/source/license.html>.
|
|
|
|
=cut
|