| 摘要 |
A MULTIPLE-INPUT MULTIPLE-OUTPUT S-BOX RECEIVES A CONTIGUOUSLY NUMBERED INPUT BITS (101, 102, 103, 104, 105) II, H TO LA, WHERE A IS AT LEAST 4, AND OUTPUTS B CONTIGUOUSLY NUMBERED OUTPUT BITS (131, 132, 133, 134, 135) OI, 02, TO OI. THE S-BOX COMPRISES C PRIMITIVE SBOXES (121, 122, 123) SBI, SB2TOSBC. EACHPRIMITIVES-BOX(121, 122, 123) HAS A MULTIPLEINPUT SINGLE-OUTPUT BOOLEAN FUNCTIONJJ,}2, TO IE DEFINING THE RELATIONSHIP BETWEEN THE MULTIPLE INPUTS AND THE SINGLE OUTPUT. EACH PRIMITIVE S-BOX (121, 122, 123) RECEIVES A SET OF INPUT BITS SI, SI, TO SCRESPECTIVELY, EACH SUCH SET IS CHOSEN FROM THE A INPUT BITS (101, 102, 103, 104, 105) TO THE S-BOX AND CONTAINING SLI, S12, TO SL; BITS RESPECTIVELY. EACH OF THE NUMBERS SLI, S12, TO SL; IS IN THE RANGE OF 3 TO (A-I), AND THE SUM OF THE NUMBERS SII, S12, TO SL; IS LARGER THAN A. THE B OUTPUT BITS OF THE S-BOX (131, 132, 133, 134, 135) ARE THE OUTPUTS OF THE C BOOLEAN FUNCTIONS.
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