www.usr.com/support/gpl/USR9107_release.1.4.tar.gz

[bcm963xx.git] / userapps / opensource / sshd / libtommath / bn_mp_sqr.c

diff --git a/userapps/opensource/sshd/libtommath/bn_mp_sqr.c b/userapps/opensource/sshd/libtommath/bn_mp_sqr.c
index c5cde53..b1fdb57 100755 (executable)
--- a/userapps/opensource/sshd/libtommath/bn_mp_sqr.c
+++ b/userapps/opensource/sshd/libtommath/bn_mp_sqr.c
@@ -1,9 +1,11 @@
+#include <tommath.h>
+#ifdef BN_MP_SQR_C
 /* LibTomMath, multiple-precision integer library -- Tom St Denis
  *
- * LibTomMath is library that provides for multiple-precision
+ * LibTomMath is a library that provides multiple-precision
  * integer arithmetic as well as number theoretic functionality.
  *
- * The library is designed directly after the MPI library by
+ * The library was designed directly after the MPI library by
  * Michael Fromberger but has been written from scratch with
  * additional optimizations in place.
  *
@@ -12,31 +14,41 @@
  *
  * Tom St Denis, tomstdenis@iahu.ca, http://math.libtomcrypt.org
  */
-#include <tommath.h>
 
 /* computes b = a*a */
 int
 mp_sqr (mp_int * a, mp_int * b)
 {
   int     res;
-#ifndef NO_LTM_TOOM
+
+#ifdef BN_MP_TOOM_SQR_C
+  /* use Toom-Cook? */
   if (a->used >= TOOM_SQR_CUTOFF) {
     res = mp_toom_sqr(a, b);
-  } else
+  /* Karatsuba? */
+  } else 
 #endif
-  if (a->used >= KARATSUBA_SQR_CUTOFF) {
+#ifdef BN_MP_KARATSUBA_SQR_C
+if (a->used >= KARATSUBA_SQR_CUTOFF) {
     res = mp_karatsuba_sqr (a, b);
-  } else {
-
-    /* can we use the fast multiplier? */
+  } else 
+#endif
+  {
+#ifdef BN_FAST_S_MP_SQR_C
+    /* can we use the fast comba multiplier? */
     if ((a->used * 2 + 1) < MP_WARRAY && 
          a->used < 
          (1 << (sizeof(mp_word) * CHAR_BIT - 2*DIGIT_BIT - 1))) {
       res = fast_s_mp_sqr (a, b);
-    } else {
+    } else
+#endif
+#ifdef BN_S_MP_SQR_C
       res = s_mp_sqr (a, b);
-    }
+#else
+      res = MP_VAL;
+#endif
   }
   b->sign = MP_ZPOS;
   return res;
 }
+#endif