@deftypefun {int} {gnutls_pkcs11_privkey_init} (gnutls_pkcs11_privkey_t * @var{key}) @var{key}: A pointer to the type to be initialized This function will initialize an private key structure. This structure can be used for accessing an underlying PKCS@code{11} object. In versions of GnuTLS later than 3.5.11 the object is protected using locks and a single @code{gnutls_pkcs11_privkey_t} can be re-used by many threads. However, for performance it is recommended to utilize one object per key per thread. @strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned, otherwise a negative error value. @end deftypefun