store headers only once, refs #7

actlibrary/include/actIEMSAWithHashAlg.h

@@ -0,0 +1,34 @@
+//////////////////////////////////////////////////////////////////////////////////
+// Name:      actIEMSAWithHashAlg.h
+// Product:   cv act library
+// Purpose:   IEMSAWithHashAlg is the abstract class derived from IEMSAAlg
+//            which provides access on the aggregated hashobject of an 
+//            EMSA-object. 
+//
+// Copyright: (c) 2000 cv cryptovision GmbH
+//            all rights reserved
+// Licence:   The conditions for the use of this software are regulated 
+//            in the cv act library licence agreement.
+//////////////////////////////////////////////////////////////////////////////////
+
+#ifndef ACT_IEMSAWithHashAlg_h
+#define ACT_IEMSAWithHashAlg_h
+
+#include "actIEMSAAlg.h"
+
+namespace act
+{
+	class IHashAlg;
+
+	class IEMSAWithHashAlg : public IEMSAAlg 
+	{
+	public:
+		virtual void SetHash(IHashAlg* hash) =0;
+		virtual const IHashAlg* GetHash() const =0;
+		virtual IHashAlg* GetHash() =0;
+	};
+} // namespace act
+
+#endif
+
+