1 files changed, 17 insertions, 0 deletions

diff --git a/nacl/crypto_stream/wrapper-xor.cpp b/nacl/crypto_stream/wrapper-xor.cpp
new file mode 100644
index 00000000..8d770d1e
--- /dev/null
+++ b/nacl/crypto_stream/wrapper-xor.cpp
@@ -0,0 +1,17 @@
+#include <string>
+using std::string;
+#include "crypto_stream.h"
+
+string crypto_stream_xor(const string &m,const string &n,const string &k)
+{
+  if (n.size() != crypto_stream_NONCEBYTES) throw "incorrect nonce length";
+  if (k.size() != crypto_stream_KEYBYTES) throw "incorrect key length";
+  size_t mlen = m.size();
+  unsigned char c[mlen];
+  crypto_stream_xor(c,
+    (const unsigned char *) m.c_str(),mlen,
+    (const unsigned char *) n.c_str(),
+    (const unsigned char *) k.c_str()
+    );
+  return string((char *) c,mlen);
+}