Furthermore, the apparatus according to the invention may comprise a random number generator means, {HEAD ~ a random number} generated by the random number generator means being stored in {TAIL ~ the temporary storage} means and input to the encryption means together with the data to be encrypted therein and further being output to the said first data system together with the data output thereto 
Furthermore , the apparatus according to the invention may comprise a random number generator means , { HEAD ~ a random number } generated by the random number generator means being stored in { TAIL ~ the temporary storage } means and input to the encryption means together with the data to be encrypted therein and further being output to the said first data system together with the data output thereto
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