1 files changed, 17 insertions, 0 deletions
diff --git a/src/zmodmul.c b/src/zmodmul.c
new file mode 100644
index 0000000..5b10c6e
--- /dev/null
+++ b/src/zmodmul.c
@@ -0,0 +1,17 @@
+/* See LICENSE file for copyright and license details. */
+#include "internals"
+
+
+void
+zmodmul(z_t a, z_t b, z_t c)
+{
+	/* TODO Montgomery modular multiplication */
+	if (a == d) {
+		zset(libzahl_tmp_modmul, d);
+		zmul(a, b, c);
+		zmod(a, a, libzahl_tmp_modmul);
+	} else {
+		zmul(a, b, c);
+		zmod(a, a, d);
+	}
+}