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diff --git a/xmlsecurity/source/xmlsec/nss/digestcontext.hxx b/xmlsecurity/source/xmlsec/nss/digestcontext.hxx
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+++ b/xmlsecurity/source/xmlsec/nss/digestcontext.hxx
@@ -0,0 +1,68 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef _DIGESTCONTEXT_HXX
+#define _DIGESTCONTEXT_HXX
+
+#include <com/sun/star/xml/crypto/XDigestContext.hpp>
+
+#include <cppuhelper/implbase1.hxx>
+#include <osl/mutex.hxx>
+
+class ODigestContext : public cppu::WeakImplHelper1< ::com::sun::star::xml::crypto::XDigestContext >
+{
+private:
+    ::osl::Mutex m_aMutex;
+
+    PK11Context* m_pContext;
+    sal_Int32 m_nDigestLength;
+    bool m_b1KData;
+    sal_Int32 m_nDigested;
+
+    bool m_bDisposed;
+    bool m_bBroken;
+
+public:
+    ODigestContext( PK11Context* pContext, sal_Int32 nDigestLength, bool b1KData )
+    : m_pContext( pContext )
+    , m_nDigestLength( nDigestLength )
+    , m_b1KData( b1KData )
+    , m_nDigested( 0 )
+    , m_bDisposed( false )
+    , m_bBroken( false )
+    {}
+
+    virtual ~ODigestContext();
+
+
+    // XDigestContext
+    virtual void SAL_CALL updateDigest( const ::com::sun::star::uno::Sequence< ::sal_Int8 >& aData ) throw (::com::sun::star::lang::DisposedException, ::com::sun::star::uno::RuntimeException);
+    virtual ::com::sun::star::uno::Sequence< ::sal_Int8 > SAL_CALL finalizeDigestAndDispose() throw (::com::sun::star::lang::DisposedException, ::com::sun::star::uno::RuntimeException);
+};
+
+#endif
+