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=head1 NAME

DH_new, DH_free - allocate and free DH objects

=head1 SYNOPSIS

 #include <openssl/dh.h>

 DH* DH_new(void);

 void DH_free(DH *dh);

=head1 DESCRIPTION

DH_new() allocates and initializes a B<DH> structure.

DH_free() frees the B<DH> structure and its components. The values are
erased before the memory is returned to the system.
If B<dh> is NULL nothing is done.

=head1 RETURN VALUES

If the allocation fails, DH_new() returns B<NULL> and sets an error
code that can be obtained by L<ERR_get_error(3)>. Otherwise it returns
a pointer to the newly allocated structure.

DH_free() returns no value.

=head1 SEE ALSO

L<dh(3)>, L<ERR_get_error(3)>,
L<DH_generate_parameters(3)>,
L<DH_generate_key(3)>

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=head1 COPYRIGHT

Copyright 2000-2016 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>.

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