SilcBool (*set_key_with_string)(void *, const unsigned char *, SilcUInt32);
SilcBool (*encrypt)(void *, const unsigned char *, unsigned char *,
SilcUInt32, unsigned char *);
SilcBool (*set_key_with_string)(void *, const unsigned char *, SilcUInt32);
SilcBool (*encrypt)(void *, const unsigned char *, unsigned char *,
SilcUInt32, unsigned char *);