int gnutls_certificate_set_openpgp_keyring_file(gnutls_certificate_credentials_t c, const char * file, gnutls_openpgp_crt_fmt_t format);
A certificate credentials structure
const char * file
filename of the keyring.
format of keyring.
The function is used to set keyrings that will be used internally
by various OpenPGP functions. For example to find a key when it
is needed for an operations. The keyring will also be used at the
On success, GNUTLS_E_SUCCESS is returned, otherwise a
negative error value.