2 files changed, 25 insertions, 0 deletions

diff --git a/nacl/crypto_verify/16/ref/api.h b/nacl/crypto_verify/16/ref/api.h
new file mode 100644
index 00000000..32be2f97
--- /dev/null
+++ b/nacl/crypto_verify/16/ref/api.h
@@ -0,0 +1 @@
+#define CRYPTO_BYTES 16
diff --git a/nacl/crypto_verify/16/ref/verify.c b/nacl/crypto_verify/16/ref/verify.c
new file mode 100644
index 00000000..d356060c
--- /dev/null
+++ b/nacl/crypto_verify/16/ref/verify.c
@@ -0,0 +1,24 @@
+#include "crypto_verify.h"
+
+int crypto_verify(const unsigned char *x,const unsigned char *y)
+{
+  unsigned int differentbits = 0;
+#define F(i) differentbits |= x[i] ^ y[i];
+  F(0)
+  F(1)
+  F(2)
+  F(3)
+  F(4)
+  F(5)
+  F(6)
+  F(7)
+  F(8)
+  F(9)
+  F(10)
+  F(11)
+  F(12)
+  F(13)
+  F(14)
+  F(15)
+  return (1 & ((differentbits - 1) >> 8)) - 1;
+}