OPENSSL_EXTERN int des_check_key; /* defaults to false */
OPENSSL_EXTERN int des_rw_mode; /* defaults to DES_PCBC_MODE */
-OPENSSL_EXTERN int des_set_weak_key_flag; /* set the weak key flag */
const char *des_options(void);
void des_ecb3_encrypt(const_des_cblock *input, des_cblock *output,