#include <unistd.h>
#define MAX_CIPHER_LEN 32
-#define MAX_CIPHER_LEN_STR "32"
+#define MAX_CIPHER_LEN_STR "31"
#define MAX_KEYFILES 32
struct crypt_device;
void crypt_safe_free(void *data);
void *crypt_safe_realloc(void *data, size_t size);
+void crypt_memzero(void *s, size_t n);
+
ssize_t crypt_hex_to_bytes(const char *hex, char **result, int safe_alloc);
int crypt_string_to_size(struct crypt_device *cd, const char *s, uint64_t *size);