1 files changed, 62 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/test/java/org/spongycastle/crypto/test/SipHashTest.java b/libraries/spongycastle/core/src/test/java/org/spongycastle/crypto/test/SipHashTest.java
new file mode 100644
index 000000000..ba07cc36e
--- /dev/null
+++ b/libraries/spongycastle/core/src/test/java/org/spongycastle/crypto/test/SipHashTest.java
@@ -0,0 +1,62 @@
+package org.spongycastle.crypto.test;
+
+import org.spongycastle.crypto.macs.SipHash;
+import org.spongycastle.crypto.params.KeyParameter;
+import org.spongycastle.crypto.util.Pack;
+import org.spongycastle.util.encoders.Hex;
+import org.spongycastle.util.test.SimpleTest;
+
+/*
+ * SipHash test values from "SipHash: a fast short-input PRF", by Jean-Philippe
+ * Aumasson and Daniel J. Bernstein (https://131002.net/siphash/siphash.pdf), Appendix A.
+ */
+public class SipHashTest
+    extends SimpleTest
+{
+
+    public String getName()
+    {
+        return "SipHash";
+    }
+
+    public void performTest()
+        throws Exception
+    {
+
+        byte[] key = Hex.decode("000102030405060708090a0b0c0d0e0f");
+        byte[] input = Hex.decode("000102030405060708090a0b0c0d0e");
+
+        long expected = 0xa129ca6149be45e5L;
+
+        SipHash mac = new SipHash();
+        mac.init(new KeyParameter(key));
+        mac.update(input, 0, input.length);
+
+        long result = mac.doFinal();
+        if (expected != result)
+        {
+            fail("Result does not match expected value for doFinal()");
+        }
+
+        byte[] expectedBytes = new byte[8];
+        Pack.longToLittleEndian(expected, expectedBytes, 0);
+
+        mac.update(input, 0, input.length);
+
+        byte[] output = new byte[mac.getMacSize()];
+        int len = mac.doFinal(output, 0);
+        if (len != output.length)
+        {
+            fail("Result length does not equal getMacSize() for doFinal(byte[],int)");
+        }
+        if (!areEqual(expectedBytes, output))
+        {
+            fail("Result does not match expected value for doFinal(byte[],int)");
+        }
+    }
+
+    public static void main(String[] args)
+    {
+        runTest(new SipHashTest());
+    }
+}