X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=tomsfastmath%2Fsrc%2Fmul%2Ffp_mulmod.c;fp=tomsfastmath%2Fsrc%2Fmul%2Ffp_mulmod.c;h=3c0069c48ad8b4fce94cb1ca9f5ef209de76902b;hb=66bc25938679f1d6a1d1200f329093d82a5e99b4;hp=0000000000000000000000000000000000000000;hpb=a52ee0733f420ca20224049260d6fc5cf7d8f621;p=zpackage

diff --git a/tomsfastmath/src/mul/fp_mulmod.c b/tomsfastmath/src/mul/fp_mulmod.c
new file mode 100644
index 0000000..3c0069c
--- /dev/null
+++ b/tomsfastmath/src/mul/fp_mulmod.c
@@ -0,0 +1,22 @@
+/* TomsFastMath, a fast ISO C bignum library.
+ * 
+ * This project is meant to fill in where LibTomMath
+ * falls short.  That is speed ;-)
+ *
+ * This project is public domain and free for all purposes.
+ * 
+ * Tom St Denis, tomstdenis@gmail.com
+ */
+#include <tfm_private.h>
+/* d = a * b (mod c) */
+int fp_mulmod(fp_int *a, fp_int *b, fp_int *c, fp_int *d)
+{
+  fp_int tmp;
+  fp_zero(&tmp);
+  fp_mul(a, b, &tmp);
+  return fp_mod(&tmp, c, d);
+}
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */