1 files changed, 19 insertions, 0 deletions

diff --git a/nacl/tests/auth.c b/nacl/tests/auth.c
new file mode 100644
index 00000000..5086624e
--- /dev/null
+++ b/nacl/tests/auth.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include "crypto_auth_hmacsha512256.h"
+
+/* "Test Case 2" from RFC 4231 */
+unsigned char key[32] = "Jefe";
+unsigned char c[28] = "what do ya want for nothing?";
+
+unsigned char a[32];
+
+main()
+{
+  int i;
+  crypto_auth_hmacsha512256(a,c,sizeof c,key);
+  for (i = 0;i < 32;++i) {
+    printf(",0x%02x",(unsigned int) a[i]);
+    if (i % 8 == 7) printf("\n");
+  }
+  return 0;
+}