Unit 3-Symmetric Key Crypto_Part6

Unit 3-Symmetric Key Crypto_Part6 - When register Z steps...

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Unit 3 - 11 A5/1, cont. When register X steps, the following occur This can be illustrated as t = x 13 x 16 x 17 x 18 x i = x i −1 for i = 18 , 17 , 16 , . . . , 1 x 0 = t x 0 x 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x 12 x 13 x 14 x 15 x 16 x 17 x 18 t t x 0 x 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x 12 x 13 x 14 x 15 x 16 x 17 x 18
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Unit 3 - 12 A5/1, cont. Similarly, for registers Y and Z When register Y steps, the following occur
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Unformatted text preview: When register Z steps, the following occur t = y 20 ⊕ y 21 y i = y i −1 for i = 21 , 20 , 19 , . . . , 1 y = t t = z 7 ⊕ z 20 ⊕ z 21 ⊕ z 22 z i = z i −1 for i = 22 , 21 , 20 , . . . , 1 z = t...
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This note was uploaded on 03/17/2011 for the course ECE 4472 taught by Professor Ouda during the Fall '10 term at UWO.

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Unit 3-Symmetric Key Crypto_Part6 - When register Z steps...

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