aes_key_info_cache
struct aes_key_info_cache *cache = CACHE(key);
struct aes_key_info_cache *cache = CACHE(key);
struct aes_key_info_cache *cache = CACHE(key);
key->cache = malloc(sizeof(struct aes_key_info_cache));
zapfree(key->cache, sizeof(struct aes_key_info_cache));
#define CACHE(X) ((struct aes_key_info_cache *)((X)->cache))
struct aes_key_info_cache *cache = CACHE(key);