1 files changed, 66 insertions, 0 deletions
diff --git a/include/oox/crypto/CryptoEngine.hxx b/include/oox/crypto/CryptoEngine.hxx
new file mode 100644
index 0000000000..49009ac7e2
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+++ b/include/oox/crypto/CryptoEngine.hxx
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#ifndef INCLUDED_OOX_CRYPTO_CRYPTOENGINE_HXX
+#define INCLUDED_OOX_CRYPTO_CRYPTOENGINE_HXX
+
+#include <vector>
+
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+#include <com/sun/star/io/XInputStream.hpp>
+#include <com/sun/star/io/XOutputStream.hpp>
+
+namespace oox {
+    class BinaryXInputStream;
+    class BinaryXOutputStream;
+}
+
+namespace oox::crypto {
+
+class CryptoEngine
+{
+protected:
+    std::vector<sal_uInt8> mKey;
+
+public:
+    CryptoEngine()
+    {}
+
+    virtual ~CryptoEngine()
+    {}
+
+    // Decryption
+    virtual bool readEncryptionInfo(css::uno::Reference<css::io::XInputStream> & rxInputStream) = 0;
+
+    virtual bool generateEncryptionKey(const OUString& rPassword) = 0;
+
+    virtual bool decrypt(
+                    BinaryXInputStream& aInputStream,
+                    BinaryXOutputStream& aOutputStream) = 0;
+
+    // Encryption
+    virtual void writeEncryptionInfo(BinaryXOutputStream & rStream) = 0;
+
+    virtual bool setupEncryption(const OUString& rPassword) = 0;
+
+    virtual void encrypt(const css::uno::Reference<css::io::XInputStream> & rxInputStream,
+                         css::uno::Reference<css::io::XOutputStream> & rxOutputStream,
+                         sal_uInt32 nSize) = 0;
+
+    virtual bool checkDataIntegrity() = 0;
+};
+
+} // namespace oox::crypto
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */