extern int ircd_crypt_register_mech(crypt_mech_t* mechanism);
extern int ircd_crypt_unregister_mech(crypt_mech_t* mechanism);
extern int ircd_crypt_register_mech(crypt_mech_t* mechanism);
extern int ircd_crypt_unregister_mech(crypt_mech_t* mechanism);