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@deftypefun {int} {gnutls_dh_params_export_pkcs3} (gnutls_dh_params_t @var{params}, gnutls_x509_crt_fmt_t @var{format}, unsigned char * @var{params_data}, size_t * @var{params_data_size})
@var{params}: Holds the DH parameters
@var{format}: the format of output params. One of PEM or DER.
@var{params_data}: will contain a PKCS3 DHParams structure PEM or DER encoded
@var{params_data_size}: holds the size of params_data (and will be replaced by the actual size of parameters)
This function will export the given dh parameters to a PKCS3
DHParams structure. This is the format generated by "openssl dhparam" tool.
If the buffer provided is not long enough to hold the output, then
GNUTLS_E_SHORT_MEMORY_BUFFER will be returned.
If the structure is PEM encoded, it will have a header
of "BEGIN DH PARAMETERS".
@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned,
otherwise a negative error code is returned.
@end deftypefun
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