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                          A C H T E R B A H N

        A Hardware Oriented Synchroneous Stream Cipher

            B. M. Gammel, R. Goettfert, O. Kniffler
                             Email:
   {Berndt.Gammel,Rainer.Goettfert,Oliver.Kniffler}@infineon.com

                    Infineon Technologies AG
           St.-Martin-Str. 76, D-81541 Munich, Germany

                    Reference Implementation
                           Version 1.0

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List of files:
==============

  README               this file

  achterbahn.c         implementation of the Achterbahn stream cipher 
                       (C99 source code)

  ecrypt-sync.h         interface definition of the Achterbahn stream
                       (C99 header file)

  ecrypt-portable.h    portability include file
                       (C99 header file)

  ecrypt-machine.h     portability include file
                       (C99 header file)

  ecrypt-config.h      portability include file
                       (C99 header file)

  ecrypt-sync.c        implementation of interfaces

  Makefile	       Call "make" 
		            to build the Achterbahn implementation
			    test suite. 

		       Call "make object" 
		            to create linkable object code with no
		            main(), i.e. with no test suite.

		       Call "make noconf" 
		            to build the Achterbahn implementation
			    test suite for the stream cipher without
			    the configuration feature 

		       Call "make noconfobject" 
		            to create linkable object code of the 
			    stream cipher without the configuration feature.

		       Call "make clean" 
		            to remove all binaries

		       Call "make help"
		            to print out a description of
			    possible arguments