Mercurial > dropbear

diff bn_mp_reduce.c @ 142:d29b64170cf0 libtommath-orig
import of libtommath 0.32
author: Matt Johnston <matt@ucc.asn.au>
date: Sun, 19 Dec 2004 11:33:56 +0000
parents: 86e0b50a9b58
children: d8254fc979e9
--- a/bn_mp_reduce.c	Tue Jun 15 14:42:57 2004 +0000
+++ b/bn_mp_reduce.c	Sun Dec 19 11:33:56 2004 +0000
@@ -1,3 +1,5 @@
+#include <tommath.h>
+#ifdef BN_MP_REDUCE_C
 /* LibTomMath, multiple-precision integer library -- Tom St Denis
  *
  * LibTomMath is a library that provides multiple-precision
@@ -12,7 +14,6 @@
  *
  * Tom St Denis, [email protected], http://math.libtomcrypt.org
  */
-#include <tommath.h>
 
 /* reduces x mod m, assumes 0 < x < m**2, mu is 
  * precomputed via mp_reduce_setup.
@@ -38,9 +39,20 @@
       goto CLEANUP;
     }
   } else {
+#ifdef BN_S_MP_MUL_HIGH_DIGS_C
     if ((res = s_mp_mul_high_digs (&q, mu, &q, um - 1)) != MP_OKAY) {
       goto CLEANUP;
     }
+#elif defined(BN_FAST_S_MP_MUL_HIGH_DIGS_C)
+    if ((res = fast_s_mp_mul_high_digs (&q, mu, &q, um - 1)) != MP_OKAY) {
+      goto CLEANUP;
+    }
+#else 
+    { 
+      res = MP_VAL;
+      goto CLEANUP;
+    }
+#endif
   }
 
   /* q3 = q2 / b**(k+1) */
@@ -82,3 +94,4 @@
 
   return res;
 }
+#endif