#include <mLib/versioncmp.h>
#include <catacomb/buf.h>
+#include <catacomb/ct.h>
#include <catacomb/gcipher.h>
#include <catacomb/gmac.h>
#define SEC(n) (n##u)
#define MIN(n) (n##u * 60u)
+#define F_2P32 (65536.0*65536.0)
#define MEG(n) (n##ul * 1024ul * 1024ul)
+/* --- Timing parameters --- */
+
+#define T_EXP MIN(60) /* Expiry time for a key */
+#define T_REGEN MIN(40) /* Regeneration time for a key */
+
+#define T_VALID SEC(20) /* Challenge validity period */
+#define T_RETRYMIN SEC(2) /* Minimum retry interval */
+#define T_RETRYMAX MIN(5) /* Maximum retry interval */
+#define T_RETRYGROW (5.0/4.0) /* Retry interval growth factor */
+
+#define T_WOBBLE (1.0/3.0) /* Relative timer randomness */
+
/* --- Other things --- */
#define PKBUFSZ 65536
* Clive Jones.
*/
+typedef struct retry {
+ double t; /* Current retry time */
+} retry;
+
#define KX_NCHAL 16u
typedef struct kxchal {
keyset *ks; /* Pointer to temporary keyset */
unsigned f; /* Various useful flags */
sel_timer t; /* Response timer for challenge */
+ retry rs; /* Retry state */
octet hc[MAXHASHSZ]; /* Hash of his challenge */
octet ck[MAXHASHSZ]; /* His magical check value */
octet hswrq_in[MAXHASHSZ]; /* Inbound switch request message */
unsigned f; /* Various useful flags */
unsigned s; /* Current state in exchange */
sel_timer t; /* Timer for next exchange */
+ retry rs; /* Retry state */
mp *alpha; /* My temporary secret */
ge *c; /* My challenge */
ge *rx; /* The expected response */
size_t /*x*/, size_t /*y*/, size_t /*z*/,
peer */*p*/);
-/* --- @ks_tregen@ --- *
- *
- * Arguments: @keyset *ks@ = pointer to a keyset
- *
- * Returns: The time at which moves ought to be made to replace this key.
- */
-
-extern time_t ks_tregen(keyset */*ks*/);
-
/* --- @ks_activate@ --- *
*
* Arguments: @keyset *ks@ = pointer to a keyset