用c語言實現(xiàn)des加密和解密-全文預覽
【正文】 +in[i*6+3]*2+in[i*6+4]*1。i8。int2,1,14,7,4,10,8,13,15,12,9,0,3,5,6,11{13,0,11,7,4,9,1,10,14,3,5,12,2,15,8,6,4,3,2,12,9,5,15,10,11,14,1,7,6,0,8,13{14,11,2,12,4,7,13,1,5,0,15,10,3,9,8,6,3,15,0,6,10,1,13,8,9,4,5,11,12,7,2,14{13,7,0,9,3,4,6,10,2,8,5,14,12,11,15,1,13,8,10,1,3,15,4,2,11,6,7,12,0,5,14,94,1,14,8,13,6,2,11,15,12,9,7,3,10,5,0,={i。in[],int}Combine(C[i+1],D[i+1],Key_Bin,56)。 RLC2(C[i],C[i+1],28)。{{{if(i==0)for(i=0。 Convert(Msg_Bin,Msg_Bin_PC1,PC1,56)。Char_to_Int(in,Msg_Int,8)。30,40,51,45,33,48,3,28,15,6,21,10,7,62,54,46,38,30,22,25,19,13,3,2,31261,28,P[32]={1628,29,30,31,32,112,13,14,15,16,17,9,5,3,=}。36,4,44,12,52,20,60,28,40,8,48,16,56,24,64,32,int61,53,45,37,29,21,13,5,62,54,46,38,30,22,14,6,{ include=60,52,44,36,28,20,12,4,59,51,43,35,27,19,11,3,{37,5,45,13,53,21,61,29,33,1,41,9,49,17,57,25E[48]2,4,8,10,11,12,13,24,25,26,27,28,29,int2029,12,18,2432,27,6,63,55,47,39,31,23,15,
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