Merge commit '86cc97e55fe346502462284d2e636a2b3708163e' as 'Sources/OpenVPN3'

Sources/OpenVPN3/openvpn/random/rand2.hpp

@@ -0,0 +1,55 @@
+//    OpenVPN -- An application to securely tunnel IP networks
+//               over a single port, with support for SSL/TLS-based
+//               session authentication and key exchange,
+//               packet encryption, packet authentication, and
+//               packet compression.
+//
+//    Copyright (C) 2012-2017 OpenVPN Inc.
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Affero General Public License Version 3
+//    as published by the Free Software Foundation.
+//
+//    This program is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Affero General Public License for more details.
+//
+//    You should have received a copy of the GNU Affero General Public License
+//    along with this program in the COPYING file.
+//    If not, see <http://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <utility>
+
+#include <openvpn/random/randapi.hpp>
+
+namespace openvpn {
+
+  // By convention, rng is crypto-strength while prng is
+  // not.  Be sure to always call RandomAPI::assert_crypto()
+  // before using an rng for crypto purposes, to verify that
+  // it is crypto-capable.
+  struct Rand2
+  {
+    Rand2() {}
+
+    Rand2(RandomAPI::Ptr rng_arg,
+	  RandomAPI::Ptr prng_arg)
+      : rng(std::move(rng_arg)),
+	prng(std::move(prng_arg))
+    {
+    }
+
+    Rand2(RandomAPI::Ptr rng_arg)
+      : rng(std::move(rng_arg)),
+	prng(std::move(rng_arg))
+    {
+    }
+
+    RandomAPI::Ptr rng;
+    RandomAPI::Ptr prng;
+  };
+
+}