/* -*-c-*-
*
- * $Id: gfshare.h,v 1.5 2000/06/24 19:11:47 mdw Exp $
+ * $Id: gfshare.h,v 1.6 2000/12/06 20:30:10 mdw Exp $
*
* Secret sharing over %$\gf{2^8}$%
*
/*----- Revision history --------------------------------------------------*
*
* $Log: gfshare.h,v $
+ * Revision 1.6 2000/12/06 20:30:10 mdw
+ * Change secret sharing interface: present the secret at share
+ * construction time.
+ *
* Revision 1.5 2000/06/24 19:11:47 mdw
* Fix daft error in the comment for @gfshare_get@.
*
unsigned t; /* Threshold */
unsigned i; /* Next free slot in vector */
size_t sz; /* Size of the secret and shares */
- void *s; /* The secret */
octet *v; /* Vector of share information */
} gfshare;
-#define GFSHARE_INIT(t, sz) { t, 0, sz, 0, 0 }
+#define GFSHARE_INIT(t, sz) { t, 0, sz, 0 }
/*----- Functions provided ------------------------------------------------*/
*
* Arguments: @gfshare *s@ = pointer to share context to fill in
* @grand *r@ = pointer to random number source
+ * @const void *buf@ = pointer to the secret to share
*
* Returns: ---
*
* Use: Initializes a sharing context to be able to create shares.
* The context structure is expected to be mostly filled in. In
- * particular, @t@ and @s@ must be initialized. If @v@ is zero,
- * a vector of appropriate size is allocated. You should use
- * the macro @GFSHARE_INIT@ or @gfshare_create@ to construct
- * sharing contexts.
+ * particular, @t@ must be initialized. If @v@ is zero, a
+ * vector of appropriate size is allocated. You should use the
+ * macro @GFSHARE_INIT@ or @gfshare_create@ to construct sharing
+ * contexts.
*/
-extern void gfshare_mkshares(gfshare */*s*/, grand */*r*/);
+extern void gfshare_mkshares(gfshare */*s*/, grand */*r*/,
+ const void */*buf*/);
/* --- @gfshare_get@ --- *
*