store headers only once, refs #7

actlibrary/include/actIStreamCipher.h

@@ -0,0 +1,51 @@
+//////////////////////////////////////////////////////////////////////////////////
+// Name:      actIStreamCipher.h
+// Product:   cv act library
+// Purpose:   The class IStreamCipher creates the symmetric StreamCipher, which is
+//            defined by IStreamCipherKey. It offers operations like encrypt, decrypt 
+//            and queries involving validity or keylength etc. 
+//
+// Copyright: (c) 2001 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_IStreamCipher_h
+#define ACT_IStreamCipher_h
+
+#include "actBasics.h"
+
+namespace act
+{
+
+	class Blob;
+
+	class IStreamCipher
+	{
+	public:
+
+		virtual IStreamCipher* Clone() const =0;
+		virtual void Import( const Blob& indata ) =0;
+		virtual void Export( Blob& outdata ) const =0;
+
+		virtual void SetRawKey( const Blob& keyblob ) =0;
+		virtual void GetRawKey( Blob& keyblob ) const =0;
+
+		virtual void Process(const byte* input, byte* output, size_t input_len) const =0;
+
+		virtual size_t GetKeySize(size_t keysize=0) const =0;
+		virtual size_t GetMinKeySize() const =0;
+		virtual size_t GetMaxKeySize() const =0;
+		virtual size_t GetNextKeySize(size_t prevsize) const =0;
+
+		virtual void* GetCreatePointer() const =0;
+
+		virtual ~IStreamCipher() {};
+	};
+
+
+}// namespace act
+
+#endif
+