Реферат Реалізація криптографічного алгоритму (AES) Rijndael

Тема: Курсовые обзорные

[Byte (T1 [0] shr 16)]; W3: = ForwardTable [Byte (T1 [1] shr 24) ]; [2]: = (W0 xor ((W1 shl 8) or (W1 shr 24)) xor ((W2 shl 16) or (W2 shr 16)) ((W3 shl 24) or (W3 shr 8)) ) xor Key [18];: = ForwardTable [Byte (T1 [3])]; W1: = ForwardTable [Byte (T1 [0] shr 8)];: = ForwardTable [Byte (T1 [1] shr 16)] ; W3: = ForwardTable [Byte (T1 [2] shr 24)]; [3]: = (W0 xor ((W1 shl 8) or (W1 shr 24)) xor ((W2 shl 16) or (W2 shr 16 )) ((W3 shl 24) or (W3 shr 8))) xor Key [19]; вЂ‹вЂ‹

// раунд 5: = ForwardTable [Byte (T0 [0])]; W1: = ForwardTable [Byte (T0 [1] shr 8)];: = ForwardTable [Byte (T0 [2 ] shr 16)]; W3: = ForwardTable [Byte (T0 [3] shr 24)]; [0]: = (W0 xor ((W1 shl 8) or (W1 shr 24)) xor ((W2 shl 16) or (W2 shr 16)) ((W3 shl 24) or (W3 shr 8))) xor Key [20];: = ForwardTable [Byte (T0 [1])]; W1: = ForwardTable [Byte (T0 [2 ] shr 8)];: = ForwardTable [Byte (T0 [3] shr 16)]; W3: = ForwardTable [Byte (T0 [0] shr 24)]; [1]: = (W0 xor ((W1 shl 8 ) or (W1 shr 24)) xor ((W2 shl 16) or (W2 shr 16)) ((W3 shl 24) or (W3 shr 8))) xor Key [21];: = ForwardTable [Byte (T0 [ 2])]; W1: = ForwardTable [Byte (T0 [3] shr 8)];: = ForwardTable [Byte (T0 [0] shr 16)]; W3: = ForwardTable [Byte (T0 [1] shr 24) ]; [2]: = (W0 xor ((W1 shl 8) or (W1 shr 24)) xor ((W2 shl 16) or (W2 shr 16)) ((W3 shl 24) or (W3 shr 8)) ) xor Key [22];: = ForwardTable [Byte (T0 [3])]; W1: = ForwardTable [Byte (T0 [0] shr 8)];: = ForwardTable [Byte (T0 [1] shr 16)] ; W3: = ForwardTable [Byte (T0 [2] shr 24)]; [3]: = (W0 xor ((W1 shl 8) or (W1 shr 24)) xor ((W2 shl 16) or (W2 shr 16 )) ((W3 shl 24) or (W3 shr 8))) xor Key [23];

// раунд 6: = ForwardTable [Byte (T1 [0])]; W1: = ForwardTable [Byte (T1 [1] shr 8)];: = ForwardTable [Byte (T1 [2 ] shr 16)]; W3: = ForwardTable [Byte (T1 [3] shr 24)]; [0]: = (W0 xor ((W1 shl 8) or (W1 shr 24)) xor ((W2 shl 16) or (W2 shr 16)) ((W3 shl 24) or (W3 shr 8))) xor Key [24];: = ForwardTable [Byte (T1 [1])]; W1: = ForwardTable [Byte (T1 [2 ] shr 8)];: = ForwardTable [Byte (T1 [3] shr 16)]; W3: = ForwardTable [Byte (T1 [0] shr 24)]; [1]: = (W0 xor ((W1 shl 8 ) or (W1 shr 24)) xor ((W2 shl 16) or (W2 shr 16)) ((W3 shl 24) or (W3 shr 8))) xor Key [25];: = ForwardTable [Byte (T1 [ 2])]; W1: = ForwardTable [Byte (T1 [3] shr 8)];: = ForwardTable [Byte (T1 [0] shr 16)]; W3: = ForwardTable [Byte (T1 [1] shr 24) ]; [2]: = (W0 xor ((W1 shl 8) or (W1 shr 24)) xor ((W2 shl 16) or (W2 shr 16)) ((W3 shl 24) or (W3 shr 8)) ) xor Key [26];: = ForwardTable [Byte (T1 [3])]; W1: = ForwardTable [Byte (T1 [0] shr 8)];: = ForwardTable [Byte (T1 [1] shr 16)] ; W3: = ForwardTable [Byte (T1 [2] shr 24)]; [3]: = (W0 xor ((W1 shl 8) or (W1 shr 24)) xor ((W2 shl 16) or (W2 shr 16 )) ((W3 shl 24) or (W3 shr 8))) xor Key [27];

// раунд 7: = ForwardTable [Byte (T0 [0])]; W1: = ForwardTable [Byte (T0 [1] shr 8)];: = ForwardTable [Byte (T0 [2 ] shr 16)]; W3: = ForwardTable [Byte (T0 [3] shr 24)]; [0]: = ...

Назад | сторінка 16 з 27 | Наступна сторінка

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