diff --git a/quic/core/crypto/quic_random.h b/quic/core/crypto/quic_random.h
new file mode 100644
index 0000000..79e0953
--- /dev/null
+++ b/quic/core/crypto/quic_random.h
@@ -0,0 +1,33 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef QUICHE_QUIC_CORE_CRYPTO_QUIC_RANDOM_H_
+#define QUICHE_QUIC_CORE_CRYPTO_QUIC_RANDOM_H_
+
+#include <cstddef>
+#include <cstdint>
+
+#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
+
+namespace quic {
+
+// The interface for a random number generator.
+class QUIC_EXPORT_PRIVATE QuicRandom {
+ public:
+  virtual ~QuicRandom() {}
+
+  // Returns the default random number generator, which is cryptographically
+  // secure and thread-safe.
+  static QuicRandom* GetInstance();
+
+  // Generates |len| random bytes in the |data| buffer.
+  virtual void RandBytes(void* data, size_t len) = 0;
+
+  // Returns a random number in the range [0, kuint64max].
+  virtual uint64_t RandUint64() = 0;
+};
+
+}  // namespace quic
+
+#endif  // QUICHE_QUIC_CORE_CRYPTO_QUIC_RANDOM_H_