1 files changed, 14 insertions, 0 deletions

diff --git a/nacl/crypto_onetimeauth/wrapper-verify.cpp b/nacl/crypto_onetimeauth/wrapper-verify.cpp
new file mode 100644
index 00000000..248239ee
--- /dev/null
+++ b/nacl/crypto_onetimeauth/wrapper-verify.cpp
@@ -0,0 +1,14 @@
+#include <string>
+using std::string;
+#include "crypto_onetimeauth.h"
+
+void crypto_onetimeauth_verify(const string &a,const string &m,const string &k)
+{
+  if (k.size() != crypto_onetimeauth_KEYBYTES) throw "incorrect key length";
+  if (a.size() != crypto_onetimeauth_BYTES) throw "incorrect authenticator length";
+  if (crypto_onetimeauth_verify(
+       (const unsigned char *) a.c_str(),
+       (const unsigned char *) m.c_str(),m.size(),
+       (const unsigned char *) k.c_str()) == 0) return;
+  throw "invalid authenticator";
+}