#include typedef int (*OPENPGP_VERIFY_KEY_FUNC)( const char *, const gnutls_datum *, const gnutls_datum*, int); typedef time_t (*OPENPGP_KEY_CREATION_TIME_FUNC)( const gnutls_datum*); typedef time_t (*OPENPGP_KEY_EXPIRATION_TIME_FUNC)( const gnutls_datum*); typedef int (*OPENPGP_KEY_REQUEST)(gnutls_datum*, const GNUTLS_CERTIFICATE_CREDENTIALS, opaque*,int); typedef int (*OPENPGP_FINGERPRINT)(const gnutls_datum*, char*, size_t*); typedef int (*OPENPGP_CERT2GNUTLS_CERT)(gnutls_cert*, gnutls_datum);