_des_cbc_cksum
_des_ncbc_encrypt
_DES_version
_des_encrypt
_des_encrypt2
_des_ecb_encrypt
_crypt
_des_check_key
_des_set_key
_des_set_odd_parity
_des_is_weak_key
_des_key_sched
_des_string_to_key
_des_string_to_2keys