1 files changed, 59 insertions, 0 deletions
diff --git a/src/crypto/siphash/siphash_test.cc b/src/crypto/siphash/siphash_test.cc
new file mode 100644
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--- /dev/null
+++ b/src/crypto/siphash/siphash_test.cc
@@ -0,0 +1,59 @@
+/* Copyright (c) 2019, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <stdint.h>
+
+#include <gtest/gtest.h>
+
+#include <openssl/siphash.h>
+
+#include "../test/file_test.h"
+#include "../test/test_util.h"
+
+TEST(SipHash, Basic) {
+  // This is the example from appendix A of the SipHash paper.
+  union {
+    uint8_t bytes[16];
+    uint64_t words[2];
+  } key;
+
+  for (unsigned i = 0; i < 16; i++) {
+    key.bytes[i] = i;
+  }
+
+  uint8_t input[15];
+  for (unsigned i = 0; i < sizeof(input); i++) {
+    input[i] = i;
+  }
+
+  EXPECT_EQ(UINT64_C(0xa129ca6149be45e5),
+            SIPHASH_24(key.words, input, sizeof(input)));
+}
+
+TEST(SipHash, Vectors) {
+  FileTestGTest("crypto/siphash/siphash_tests.txt", [](FileTest *t) {
+    std::vector<uint8_t> key, msg, hash;
+    ASSERT_TRUE(t->GetBytes(&key, "KEY"));
+    ASSERT_TRUE(t->GetBytes(&msg, "IN"));
+    ASSERT_TRUE(t->GetBytes(&hash, "HASH"));
+    ASSERT_EQ(16u, key.size());
+    ASSERT_EQ(8u, hash.size());
+
+    uint64_t key_words[2];
+    memcpy(key_words, key.data(), key.size());
+    uint64_t result = SIPHASH_24(key_words, msg.data(), msg.size());
+    EXPECT_EQ(Bytes(reinterpret_cast<uint8_t *>(&result), sizeof(result)),
+              Bytes(hash));
+  });
+}