61f805c1d5
Because the related PR/commits are merged in 2018... Reviewed-by: Andy Polyakov <appro@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/4976)
57 lines
1.3 KiB
Text
57 lines
1.3 KiB
Text
=pod
|
|
|
|
=head1 NAME
|
|
|
|
DH_size, DH_bits, DH_security_bits - get Diffie-Hellman prime size and
|
|
security bits
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
#include <openssl/dh.h>
|
|
|
|
int DH_size(const DH *dh);
|
|
|
|
int DH_bits(const DH *dh);
|
|
|
|
int DH_security_bits(const DH *dh);
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
DH_size() returns the Diffie-Hellman prime size in bytes. It can be used
|
|
to determine how much memory must be allocated for the shared secret
|
|
computed by L<DH_compute_key(3)>.
|
|
|
|
DH_bits() returns the number of significant bits.
|
|
|
|
B<dh> and B<dh-E<gt>p> must not be B<NULL>.
|
|
|
|
DH_security_bits() returns the number of security bits of the given B<dh>
|
|
key. See L<BN_security_bits(3)>.
|
|
|
|
=head1 RETURN VALUES
|
|
|
|
DH_size() returns the prime size of Diffie-Hellman in bytes.
|
|
|
|
DH_bits() returns the number of bits in the key.
|
|
|
|
DH_security_bits() returns the number of security bits.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<DH_new(3)>, L<DH_generate_key(3)>,
|
|
L<BN_num_bits(3)>
|
|
|
|
=head1 HISTORY
|
|
|
|
DH_bits() was added in OpenSSL 1.1.0.
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2000-2018 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
|