作者: Haim Primo , Yosef Stein
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摘要: A programmable data encryption engine for performing the cipher function of standard (DES) algorithm includes a Galois field linear transformer system (GFLT) responsive to first input block execute an E permutation obtain expanded and combine it with key second larger intermediate in one cycle; further parallel look-up table implementing unique selection function(s) condensing third similar cycle submitting resulting block.