From fef5adcc331c4d7b92b71e03fc8a73343a865599 Mon Sep 17 00:00:00 2001
From: Jim Posen <jim.posen@gmail.com>
Date: Mon, 20 Aug 2018 23:35:29 -0700
Subject: blockfilter: Use unordered_set instead of set in blockfilter.

---
 src/util/bytevectorhash.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 src/util/bytevectorhash.cpp

(limited to 'src/util/bytevectorhash.cpp')

diff --git a/src/util/bytevectorhash.cpp b/src/util/bytevectorhash.cpp
new file mode 100644
index 000000000..f87d0e04b
--- /dev/null
+++ b/src/util/bytevectorhash.cpp
@@ -0,0 +1,18 @@
+// Copyright (c) 2018 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <crypto/siphash.h>
+#include <random.h>
+#include <util/bytevectorhash.h>
+
+ByteVectorHash::ByteVectorHash()
+{
+    GetRandBytes(reinterpret_cast<unsigned char*>(&m_k0), sizeof(m_k0));
+    GetRandBytes(reinterpret_cast<unsigned char*>(&m_k1), sizeof(m_k1));
+}
+
+size_t ByteVectorHash::operator()(const std::vector<unsigned char>& input) const
+{
+    return CSipHasher(m_k0, m_k1).Write(input.data(), input.size()).Finalize();
+}
-- 
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