/* -*-c-*-
*
- * $Id: mpbarrett.h,v 1.2 2000/10/08 12:03:44 mdw Exp $
+ * $Id: mpbarrett.h,v 1.5 2004/04/08 01:36:15 mdw Exp $
*
* Barrett modular reduction
*
* MA 02111-1307, USA.
*/
-/*----- Revision history --------------------------------------------------*
- *
- * $Log: mpbarrett.h,v $
- * Revision 1.2 2000/10/08 12:03:44 mdw
- * (mpbarrett_reduce): Cope with negative numbers.
- *
- * Revision 1.1 1999/12/10 23:22:00 mdw
- * Barrett reduction support: works with even moduli.
- *
- */
-
/*----- Notes on Barrett reduction ----------------------------------------*
*
* Barrett reduction is a technique for computing modular residues. Unlike
extern mp *mpbarrett_exp(mpbarrett */*mb*/, mp */*d*/, mp */*a*/, mp */*e*/);
+/* --- @mpbarrett_mexp@ --- *
+ *
+ * Arguments: @mpbarrett *mb@ = pointer to Barrett reduction context
+ * @mp *d@ = fake destination
+ * @const mp_expfactor *f@ = pointer to array of factors
+ * @size_t n@ = number of factors supplied
+ *
+ * Returns: If the bases are %$g_0, g_1, \ldots, g_{n-1}$% and the
+ * exponents are %$e_0, e_1, \ldots, e_{n-1}$% then the result
+ * is:
+ *
+ * %$g_0^{e_0} g_1^{e_1} \ldots g_{n-1}^{e_{n-1}} \bmod m$%
+ */
+
+extern mp *mpbarrett_mexp(mpbarrett */*mb*/, mp */*d*/,
+ const mp_expfactor */*f*/, size_t /*n*/);
+
/*----- That's all, folks -------------------------------------------------*/
#ifdef __cplusplus