X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=tomsfastmath%2Fsrc%2Fsqr%2Ffp_sqrmod.c;fp=tomsfastmath%2Fsrc%2Fsqr%2Ffp_sqrmod.c;h=2bd6fb125d80807d47a781cc30c21202b2dbbdd8;hb=66bc25938679f1d6a1d1200f329093d82a5e99b4;hp=0000000000000000000000000000000000000000;hpb=a52ee0733f420ca20224049260d6fc5cf7d8f621;p=zpackage

diff --git a/tomsfastmath/src/sqr/fp_sqrmod.c b/tomsfastmath/src/sqr/fp_sqrmod.c
new file mode 100644
index 0000000..2bd6fb1
--- /dev/null
+++ b/tomsfastmath/src/sqr/fp_sqrmod.c
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+/* 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>
+
+/* c = a * a (mod b) */
+int fp_sqrmod(fp_int *a, fp_int *b, fp_int *c)
+{
+  fp_int tmp;
+  fp_zero(&tmp);
+  fp_sqr(a, &tmp);
+  return fp_mod(&tmp, b, c);
+}
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */