1 files changed, 12 insertions, 0 deletions

diff --git a/nacl/crypto_scalarmult/wrapper-mult.cpp b/nacl/crypto_scalarmult/wrapper-mult.cpp
new file mode 100644
index 00000000..fc693cf0
--- /dev/null
+++ b/nacl/crypto_scalarmult/wrapper-mult.cpp
@@ -0,0 +1,12 @@
+#include <string>
+using std::string;
+#include "crypto_scalarmult.h"
+
+string crypto_scalarmult(const string &n,const string &p)
+{
+  unsigned char q[crypto_scalarmult_BYTES];
+  if (n.size() != crypto_scalarmult_SCALARBYTES) throw "incorrect scalar length";
+  if (p.size() != crypto_scalarmult_BYTES) throw "incorrect element length";
+  crypto_scalarmult(q,(const unsigned char *) n.c_str(),(const unsigned char *) p.c_str());
+  return string((char *) q,sizeof q);
+}