randomdev_key
union randomdev_key fs_key; /* K */
union randomdev_key *p_key, bool locked)
union randomdev_key key_copy;
randomdev_encrypt_init(union randomdev_key *context, const void *data)
randomdev_keystream(union randomdev_key *context, uint128_t *ctr,
randomdev_getkey(union randomdev_key *context, const void **keyp, size_t *szp)
void randomdev_encrypt_init(union randomdev_key *, const void *);
void randomdev_keystream(union randomdev_key *context, uint128_t *, void *, size_t);
void randomdev_getkey(union randomdev_key *, const void **, size_t *);
union randomdev_key context;