-/*----- Tunable parameters ------------------------------------------------*/
-
-/* --- Note on size limits --- *
- *
- * For a 64-bit block cipher (e.g., Blowfish), the probability of a collision
- * occurring after 32 MB is less than %$2^{-21}$%, and the probability of a
- * collision occurring after 64 MB is less than %$2^{-19}$%. These could be
- * adjusted dependent on the encryption scheme, but it's too much pain.
- */
-
-#define T_EXP MIN(60) /* Expiry time for a key */
-#define T_REGEN MIN(45) /* Regeneration time for a key */
-#define SZ_EXP MEG(64) /* Expiry data size for a key */
-#define SZ_REGEN MEG(32) /* Data size threshold for regen */
-