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=pod =head1 NAME DH_size - get Diffie-Hellman prime size =head1 SYNOPSIS #include <openssl/dh.h> int DH_size(DH *dh); =head1 DESCRIPTION This function returns the Diffie-Hellman size in bytes. It can be used to determine how much memory must be allocated for the shared secret computed by DH_compute_key(). B<dh-E<gt>p> must not be B<NULL>. =head1 RETURN VALUE The size in bytes. =head1 SEE ALSO L<dh(3)|dh(3)>, L<DH_generate_key(3)|DH_generate_key(3)> =head1 HISTORY DH_size() is available in all versions of SSLeay and OpenSSL. =cut