I am new to cryptography. During my learning I am facing prob in s-des. I am confuse from how P10 to P8 come, and confuse in the process of this algo. can anyone have any good article to solve it easily. I am reading following example but getting confuse.. ## Example ## P10 = { 3, 5, 2, 7, 4, 10, 1, 9, 8, 6} P8 = { 6, 3, 7, 4, 8, 5, 10, 9} K = 10100 00010 P10 10000 01100 LS-1 00001 11000 -> P8 -> K1 = 1010 0100 LS-2 00100 00011 -> P8 -> K2 = 0100 0011
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