/* -*-c-*-
*
- * $Id: mpmont.h,v 1.7 2004/04/01 12:50:09 mdw Exp $
+ * $Id$
*
* Montgomery reduction
*
* MA 02111-1307, USA.
*/
-/*----- Revision history --------------------------------------------------*
- *
- * $Log: mpmont.h,v $
- * Revision 1.7 2004/04/01 12:50:09 mdw
- * Add cyclic group abstraction, with test code. Separate off exponentation
- * functions for better static linking. Fix a buttload of bugs on the way.
- * Generally ensure that negative exponents do inversion correctly. Add
- * table of standard prime-field subgroups. (Binary field subgroups are
- * currently unimplemented but easy to add if anyone ever finds a good one.)
- *
- * Revision 1.6 2002/01/13 13:49:25 mdw
- * Make @const@-correct.
- *
- * Revision 1.5 2001/06/16 13:00:04 mdw
- * Moved @mpmont_factor@ to <mp.h>. Documented interface change to
- * @mpmont_expr@ and @mpmont_mexpr@ -- the arguments are now in Montgomery
- * form.
- *
- * Revision 1.4 1999/12/11 01:51:14 mdw
- * Use a Karatsuba-based reduction for large moduli.
- *
- * Revision 1.3 1999/12/10 23:29:48 mdw
- * Change header file guard names.
- *
- * Revision 1.2 1999/11/19 13:17:43 mdw
- * Add extra interface to exponentiation which returns a Montgomerized
- * result. Add simultaneous exponentiation interface.
- *
- * Revision 1.1 1999/11/17 18:02:16 mdw
- * New multiprecision integer arithmetic suite.
- *
- */
-
#ifndef CATACOMB_MPMONT_H
#define CATACOMB_MPMONT_H
* Arguments: @mpmont *mm@ = pointer to Montgomery reduction context
* @mp *m@ = modulus to use
*
- * Returns: ---
+ * Returns: Zero on success, nonzero on error.
*
* Use: Initializes a Montgomery reduction context ready for use.
* The argument @m@ must be a positive odd integer.
*/
-extern void mpmont_create(mpmont */*mm*/, mp */*m*/);
+extern int mpmont_create(mpmont */*mm*/, mp */*m*/);
/* --- @mpmont_destroy@ --- *
*