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@deftypefun {int} {gnutls_pubkey_export_dh_raw} (gnutls_pubkey_t @var{key}, gnutls_dh_params_t @var{params}, gnutls_datum_t * @var{y}, unsigned @var{flags})
@var{key}: Holds the public key
@var{params}: will hold the Diffie-Hellman parameter (optional), must be initialized
@var{y}: will hold the y
@var{flags}: flags from @code{gnutls_abstract_export_flags_t}
This function will export the Diffie-Hellman public key parameter
found in the given public key. The new parameter will be allocated
using @code{gnutls_malloc()} and will be stored in the appropriate datum.
To retrieve other parameters common in both public key and private
key, use @code{gnutls_dh_params_export_raw()} .
This function allows for @code{NULL} parameters since 3.4.1.
@strong{Returns:} @code{GNUTLS_E_SUCCESS} on success, otherwise a negative error code.
@strong{Since:} 3.8.2
@end deftypefun
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