randomdev_hash_finish
randomdev_hash_finish(&context, hash);
randomdev_hash_finish(&context, hash);
randomdev_hash_finish(&fortuna_state.fs_pool[i].fsp_hash, temp);
randomdev_hash_finish(&context, s + i*RANDOM_KEYSIZE_WORDS);
void randomdev_hash_finish(struct randomdev_hash *, void *);
randomdev_hash_finish(&hash, entropy_data);