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diff --git a/libdevcore/Base64.h b/libdevcore/Base64.h
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+++ b/libdevcore/Base64.h
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+/*
+   base64.cpp and base64.h
+
+   Copyright (C) 2004-2008 René Nyffenegger
+
+   This source code is provided 'as-is', without any express or implied
+   warranty. In no event will the author be held liable for any damages
+   arising from the use of this software.
+
+   Permission is granted to anyone to use this software for any purpose,
+   including commercial applications, and to alter it and redistribute it
+   freely, subject to the following restrictions:
+
+   1. The origin of this source code must not be misrepresented; you must not
+	  claim that you wrote the original source code. If you use this source code
+	  in a product, an acknowledgment in the product documentation would be
+	  appreciated but is not required.
+
+   2. Altered source versions must be plainly marked as such, and must not be
+	  misrepresented as being the original source code.
+
+   3. This notice may not be removed or altered from any source distribution.
+
+   René Nyffenegger rene.nyffenegger@adp-gmbh.ch
+*/
+/// Adapted from code found on http://stackoverflow.com/questions/180947/base64-decode-snippet-in-c
+/// Originally by René Nyffenegger.
+/// DEVified by Gav Wood.
+#pragma once
+
+#include <string>
+#include "Common.h"
+#include "FixedHash.h"
+
+namespace dev
+{
+
+std::string toBase64(bytesConstRef _in);
+bytes fromBase64(std::string const& _in);
+
+
+}